Virtualized Conversations D. G Petrie Internet-Draft SIPez LLC Intended status: Standards Track 1 July 2026 Expires: 2 January 2027 The JSON format for vCon - Conversation Data Container draft-ietf-vcon-vcon-core-03 Abstract vCon is a standardized framework for the exchange of conversational data. Conversations, which may involve one or more participants, occur across a wide variety of modes and application platforms. This document defines a JSON format for representing conversational data, encompassing metadata, conversation media, related documents, and analysis. The goal of this standard is to provide an abstracted, platform-independent data format for conversations, regardless of the mode or application platform. By doing so, it facilitates the integration and seamless exchange of conversational data across application platforms, enterprises, and trust boundaries. About This Document This note is to be removed before publishing as an RFC. The latest revision of this draft can be found at https://ietf-wg- vcon.github.io/draft-ietf-vcon-vcon-core/draft-ietf-vcon-vcon- core.html. Status information for this document may be found at https://datatracker.ietf.org/doc/draft-ietf-vcon-vcon-core/. Discussion of this document takes place on the Virtualized Conversations Working Group mailing list (mailto:vcon@ietf.org), which is archived at https://mailarchive.ietf.org/arch/browse/vcon/. Subscribe at https://www.ietf.org/mailman/listinfo/vcon/. Source for this draft and an issue tracker can be found at https://github.com/ietf-wg-vcon/draft-ietf-vcon-vcon-core. Status of This Memo This Internet-Draft is submitted in full conformance with the provisions of BCP 78 and BCP 79. Internet-Drafts are working documents of the Internet Engineering Task Force (IETF). Note that other groups may also distribute working documents as Internet-Drafts. The list of current Internet- Drafts is at https://datatracker.ietf.org/drafts/current/. Petrie Expires 2 January 2027 [Page 1] Internet-Draft JSON vCon July 2026 Internet-Drafts are draft documents valid for a maximum of six months and may be updated, replaced, or obsoleted by other documents at any time. It is inappropriate to use Internet-Drafts as reference material or to cite them other than as "work in progress." This Internet-Draft will expire on 2 January 2027. Copyright Notice Copyright (c) 2026 IETF Trust and the persons identified as the document authors. All rights reserved. This document is subject to BCP 78 and the IETF Trust's Legal Provisions Relating to IETF Documents (https://trustee.ietf.org/ license-info) in effect on the date of publication of this document. Please review these documents carefully, as they describe your rights and restrictions with respect to this document. Code Components extracted from this document must include Revised BSD License text as described in Section 4.e of the Trust Legal Provisions and are provided without warranty as described in the Revised BSD License. Table of Contents 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 5 1.1. Purpose of vCon . . . . . . . . . . . . . . . . . . . . . 5 1.2. Extending the vCon Schema . . . . . . . . . . . . . . . . 5 1.3. Benefits of vCon . . . . . . . . . . . . . . . . . . . . 6 1.4. *Scope of the Document* . . . . . . . . . . . . . . . . . 6 2. Conventions and Definitions . . . . . . . . . . . . . . . . . 6 2.1. Terminology . . . . . . . . . . . . . . . . . . . . . . . 7 2.2. JSON Notation . . . . . . . . . . . . . . . . . . . . . . 8 2.3. Inline Files . . . . . . . . . . . . . . . . . . . . . . 9 2.3.1. body . . . . . . . . . . . . . . . . . . . . . . . . 10 2.3.2. encoding . . . . . . . . . . . . . . . . . . . . . . 10 2.4. Externally Referenced Files . . . . . . . . . . . . . . . 10 2.4.1. url . . . . . . . . . . . . . . . . . . . . . . . . . 11 2.4.2. content_hash . . . . . . . . . . . . . . . . . . . . 11 2.5. Extending vCon . . . . . . . . . . . . . . . . . . . . . 11 3. vCon JSON Object . . . . . . . . . . . . . . . . . . . . . . 13 4. Unsigned Form of vCon Object . . . . . . . . . . . . . . . . 14 4.1. vCon JSON Object Keys and Values . . . . . . . . . . . . 14 4.1.1. vcon . . . . . . . . . . . . . . . . . . . . . . . . 14 4.1.2. uuid . . . . . . . . . . . . . . . . . . . . . . . . 14 4.1.3. extensions . . . . . . . . . . . . . . . . . . . . . 15 4.1.4. critical . . . . . . . . . . . . . . . . . . . . . . 15 4.1.5. created_at . . . . . . . . . . . . . . . . . . . . . 15 4.1.6. updated_at . . . . . . . . . . . . . . . . . . . . . 16 4.1.7. subject . . . . . . . . . . . . . . . . . . . . . . . 16 Petrie Expires 2 January 2027 [Page 2] Internet-Draft JSON vCon July 2026 4.1.8. redacted . . . . . . . . . . . . . . . . . . . . . . 16 4.1.9. amended . . . . . . . . . . . . . . . . . . . . . . . 19 4.1.10. parties Objects Array . . . . . . . . . . . . . . . . 20 4.1.11. dialog Objects Array . . . . . . . . . . . . . . . . 21 4.1.12. analysis Objects Array . . . . . . . . . . . . . . . 21 4.1.13. attachments Objects Array . . . . . . . . . . . . . . 21 4.2. Party Object . . . . . . . . . . . . . . . . . . . . . . 21 4.2.1. tel . . . . . . . . . . . . . . . . . . . . . . . . . 22 4.2.2. sip . . . . . . . . . . . . . . . . . . . . . . . . . 22 4.2.3. stir . . . . . . . . . . . . . . . . . . . . . . . . 22 4.2.4. mailto . . . . . . . . . . . . . . . . . . . . . . . 22 4.2.5. name . . . . . . . . . . . . . . . . . . . . . . . . 22 4.2.6. did . . . . . . . . . . . . . . . . . . . . . . . . . 23 4.2.7. validation . . . . . . . . . . . . . . . . . . . . . 23 4.2.8. gmlpos . . . . . . . . . . . . . . . . . . . . . . . 24 4.2.9. civicaddress . . . . . . . . . . . . . . . . . . . . 24 4.2.10. uuid . . . . . . . . . . . . . . . . . . . . . . . . 25 4.2.11. type . . . . . . . . . . . . . . . . . . . . . . . . 25 4.2.12. org . . . . . . . . . . . . . . . . . . . . . . . . . 25 4.2.13. dept . . . . . . . . . . . . . . . . . . . . . . . . 26 4.3. Dialog Object . . . . . . . . . . . . . . . . . . . . . . 26 4.3.1. type . . . . . . . . . . . . . . . . . . . . . . . . 27 4.3.2. start . . . . . . . . . . . . . . . . . . . . . . . . 28 4.3.3. duration . . . . . . . . . . . . . . . . . . . . . . 28 4.3.4. parties . . . . . . . . . . . . . . . . . . . . . . . 28 4.3.5. originator . . . . . . . . . . . . . . . . . . . . . 30 4.3.6. recordings . . . . . . . . . . . . . . . . . . . . . 30 4.3.7. recording_set . . . . . . . . . . . . . . . . . . . . 30 4.3.8. mediatype . . . . . . . . . . . . . . . . . . . . . . 31 4.3.9. filename . . . . . . . . . . . . . . . . . . . . . . 31 4.3.10. Dialog Content . . . . . . . . . . . . . . . . . . . 31 4.3.11. disposition . . . . . . . . . . . . . . . . . . . . . 32 4.3.12. session_id . . . . . . . . . . . . . . . . . . . . . 33 4.3.13. party_history Objects Array . . . . . . . . . . . . . 33 4.3.14. Dialog Transfer . . . . . . . . . . . . . . . . . . . 34 4.3.15. application . . . . . . . . . . . . . . . . . . . . . 36 4.3.16. message_id . . . . . . . . . . . . . . . . . . . . . 36 4.4. Attachment Object . . . . . . . . . . . . . . . . . . . . 37 4.4.1. purpose . . . . . . . . . . . . . . . . . . . . . . . 37 4.4.2. start . . . . . . . . . . . . . . . . . . . . . . . . 37 4.4.3. party . . . . . . . . . . . . . . . . . . . . . . . . 37 4.4.4. dialog . . . . . . . . . . . . . . . . . . . . . . . 38 4.4.5. mediatype . . . . . . . . . . . . . . . . . . . . . . 38 4.4.6. filename . . . . . . . . . . . . . . . . . . . . . . 38 4.4.7. Attachment Content . . . . . . . . . . . . . . . . . 38 4.5. Analysis Object . . . . . . . . . . . . . . . . . . . . . 39 4.5.1. type . . . . . . . . . . . . . . . . . . . . . . . . 39 4.5.2. dialog . . . . . . . . . . . . . . . . . . . . . . . 39 Petrie Expires 2 January 2027 [Page 3] Internet-Draft JSON vCon July 2026 4.5.3. attachment . . . . . . . . . . . . . . . . . . . . . 40 4.5.4. mediatype . . . . . . . . . . . . . . . . . . . . . . 40 4.5.5. filename . . . . . . . . . . . . . . . . . . . . . . 40 4.5.6. vendor . . . . . . . . . . . . . . . . . . . . . . . 40 4.5.7. product . . . . . . . . . . . . . . . . . . . . . . . 41 4.5.8. schema . . . . . . . . . . . . . . . . . . . . . . . 41 4.5.9. Analysis Content . . . . . . . . . . . . . . . . . . 41 5. Security Considerations . . . . . . . . . . . . . . . . . . . 42 5.1. Signing Externally Referenced Files . . . . . . . . . . . 44 5.2. Signed Form of vCon Object . . . . . . . . . . . . . . . 44 5.2.1. Signature Object . . . . . . . . . . . . . . . . . . 45 5.2.2. Header Object . . . . . . . . . . . . . . . . . . . . 45 5.2.3. Long Term Archiving of Signed vCons . . . . . . . . . 46 5.3. Encrypted Form of vCon Object . . . . . . . . . . . . . . 47 5.3.1. Unprotected Object . . . . . . . . . . . . . . . . . 47 5.3.2. Recipient Object . . . . . . . . . . . . . . . . . . 48 5.3.3. Header Object . . . . . . . . . . . . . . . . . . . . 48 5.4. Differentiation of unsigned, signed and encrypted forms of vCon . . . . . . . . . . . . . . . . . . . . . . . . . . 48 6. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 49 6.1. JSON Format vCon Mediatype . . . . . . . . . . . . . . . 49 6.2. gzip Format vCon Mediatype . . . . . . . . . . . . . . . 50 6.3. vCon JSON Registry . . . . . . . . . . . . . . . . . . . 51 6.3.1. Object Registry Template . . . . . . . . . . . . . . 51 6.3.2. vCon Object Parameter Names Registry . . . . . . . . 52 6.3.3. Party Object Parameter Names Registry . . . . . . . . 53 6.3.4. Dialog Object Parameter Names Registry . . . . . . . 55 6.3.5. party_history Object Parameter Names Registry . . . . 58 6.3.6. Attachment Object Parameter Names Registry . . . . . 60 6.3.7. Analysis Object Parameter Names Registry . . . . . . 61 6.3.8. Redacted Object Parameter Names Registry . . . . . . 63 6.3.9. Amended Object Parameter Names Registry . . . . . . . 63 6.4. vCon Extensions Names Registry . . . . . . . . . . . . . 64 6.4.1. Extensions Registration Template . . . . . . . . . . 64 6.5. JSON Web Signature and Encryption Header Parameters . . . 64 7. Non-Upward Compatible Changes to the vCon Container . . . . . 65 7.1. Version 0.3.0 to 0.4.0 . . . . . . . . . . . . . . . . . 65 7.2. Version 0.0.2 to 0.3.0 . . . . . . . . . . . . . . . . . 65 7.3. Version 0.0.1 to 0.0.2 . . . . . . . . . . . . . . . . . 65 8. References . . . . . . . . . . . . . . . . . . . . . . . . . 65 8.1. Normative References . . . . . . . . . . . . . . . . . . 65 8.2. Informative References . . . . . . . . . . . . . . . . . 67 Appendix A. Example vCons . . . . . . . . . . . . . . . . . . . 69 A.1. Two Party Call vCon With Inline Recording . . . . . . . . 69 A.2. Email Thread Multipart vCon . . . . . . . . . . . . . . . 74 A.3. Email Thread Text vCon . . . . . . . . . . . . . . . . . 77 A.4. Two Party Call vCon With Externally Referenced Recording . . . . . . . . . . . . . . . . . . . . . . . . 78 Petrie Expires 2 January 2027 [Page 4] Internet-Draft JSON vCon July 2026 A.5. Two Party Call vCon with Analysis . . . . . . . . . . . . 79 A.6. Signed vCon . . . . . . . . . . . . . . . . . . . . . . . 99 A.7. Encrypted vCon . . . . . . . . . . . . . . . . . . . . . 104 A.8. Redacted vCon . . . . . . . . . . . . . . . . . . . . . . 111 A.9. Amended Signed vCon . . . . . . . . . . . . . . . . . . . 114 Appendix B. vCon JSON Schema . . . . . . . . . . . . . . . . . . 116 Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . . 129 Author's Address . . . . . . . . . . . . . . . . . . . . . . . . 129 1. Introduction This document specifies the *vCon* (Conversational Data Exchange) standard, which defines a unified format for representing and exchanging conversational data across different communication platforms and modalities. The goal of *vCon* is to provide a standardized, platform-agnostic structure for capturing and sharing conversational information, allowing for seamless integration between systems, enterprises, and trust boundaries. 1.1. Purpose of vCon The *vCon* standard enables the abstraction of conversation data, making it easier to integrate communication platforms with external services, including post-conversation analysis tools, customer support systems, and business intelligence platforms. By defining a consistent data format, *vCon* ensures interoperability across various platforms, regardless of the communication mode - whether text, audio, video, or other formats. The *vCon* format captures the essential components of a conversation, including metadata, media content, related documents, and post-conversation analysis. This abstraction simplifies data exchange, apply AI-driven analysis, as well as model training and testing. 1.2. Extending the vCon Schema In addition to the core *vCon* schema, this document provides a framework for extending the *vCon* format to support specialized use cases. The *vCon* schema can be customized to address the needs of specific industries or applications, such as: * *Contact Centers*: Adding specific metadata related to customer service interactions, case management, and priority tracking. * *Messaging Platforms*: Supporting the integration of different message formats, including SMS, email, and chat, group concepts, along with platform-specific information. Petrie Expires 2 January 2027 [Page 5] Internet-Draft JSON vCon July 2026 * *ECRIT (Emergency Communication) Centers*: Extending the schema to capture critical data such as location, urgency, and incident details for emergency communications. The ability to add extensions ensure that *vCon* remains flexible and adaptable, enabling its use in a wide range of domains while maintaining a consistent format for data exchange. 1.3. Benefits of vCon The *vCon* standard offers several key benefits: * *Interoperability*: A consistent data format for conversational data facilitates integration across diverse platforms and systems. * *AI-Driven Analysis*: By capturing data in a structured format, *vCon* enables the application of AI analysis such as sentiment analysis, categorization, transcription, and decision-making. * *Data Automation*: The *vCon* format simplifies the automation of processes involving conversational data, improving efficiency and reducing the risk of errors. * *Enterprise Integration*: The ability to integrate conversation data with third-party tools and services enhances the value of conversations by providing deeper insights and driving business decisions. 1.4. *Scope of the Document* This document defines the core structure and schema for *vCon* as a JSON format. Detailed specifications for the various parameters and the extension framework will be provided in subsequent sections. The primary focus is on creating a flexible, extensible standard for the exchange of conversational data that can be easily adopted across industries, use cases, and communication technologies. 2. Conventions and Definitions The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in BCP 14 [RFC2119] [RFC8174] when, and only when, they appear in all capitals, as shown here. Petrie Expires 2 January 2027 [Page 6] Internet-Draft JSON vCon July 2026 2.1. Terminology * analysis - analysis, transformations, summary, sentiment, or translation typically of the dialog data * conversation - an exchange of communication using text, audio or video medium between at least one human and one or more bots or humans * de-identification - removal of all information that could identify a party in a conversation. This includes PII as well as audio and video recordings. Voice recordings might be re-vocalized with a different speaker. * dialog - the captured conversation in its original form (e.g. text, audio or video) * encrypted form - encrypted JWE document with the JWS signed vCon form contained in the ciphertext * file - a data block either included or referenced in a vCon * object - JSON object containing key and value pairs * parameter - JSON key and value pair * party - an observer or participant to the conversation, either passive or active * payload - the contents or bytes that make up a file * PII - Personal Identifiable Information * PII masked - may include voice recordings, but PII is removed from transcripts and recordings (audio and video). * vCon - container for conversational information * vCon instance - a vCon populated with data for a specific conversation * vCon instance version - a single version of an instance of a conversation, which may be modified to redact or amend additional information forming a subsequent vCon instance version * vCon syntax version - the version for the data syntax used for form a vCon Petrie Expires 2 January 2027 [Page 7] Internet-Draft JSON vCon July 2026 * signed form - JWS signed document with the unsigned vCon form contained in the payload 2.2. JSON Notation For the ease of documentation, the convention for [JSON] notation used in this document is copied from sections 1.1-1.5 of [JMAP]. * Date - A string that MUST have the form of an [RFC3339] date string as defined for the Date type in section 1.4 of [JMAP]. * "*" - The type is undefined; the value can be any JSON type, although permitted values may be constrained by the context of the value, as defined in section 1.1 of [JMAP]. * "String" - a JSON string type. * "UnsignedInt" - a positive JSON integer as defined in section 1.3 of [JMAP]. * "UnsignedFloat" - a positive JSON floating point number containing a decimal point as defined in section 6 of [JSON]. * "Mediatype" - A "String" value that MUST be of the following form as defined in section 5.1 of [MIME]: type "/" subtype Petrie Expires 2 January 2027 [Page 8] Internet-Draft JSON vCon July 2026 * "ContentHash" - The string token value is generated using the same approach used in section 6 of [STIR-PASS]. The relevant text is copied here for convenience and to remove the normative dependency. The hash string token values are formed from combining a string that defines the crypto algorithm used to generate the digest along with the Base64Url Encoded value of the SHA-512 hash, as defined in section 6.3 and 6.4 [SHA-512], of the body of the content at the given url. The hash algorithm is identified by "sha512". SHA-512 is part of the SHA-2 set of cryptographic hash functions [SHA-512] defined by the US National Institute of Standards and Technology (NIST). Implementations MAY support additional recommended hash algorithms in [IANA-COSE-ALG]; that is, the hash algorithm has "Yes" in the "Recommended" column of the IANA registry. Hash algorithm identifiers MUST use only lowercase letters, and they MUST NOT contain hyphen characters. The character following the algorithm string MUST be a hyphen character, "-", or ASCII 45. The subsequent characters are the Base64Url encoded (see Section 2 [JWS]) digest of a canonicalized and concatenated string or binary data based on the JSON pointer referenced elements of "rcd" claim or the URI referenced content contained in the claim. * "SessionId" - An object with the String parameters: "local" and "remote". The String values of these parameters are UUIDs as defined in section 5 of [SESSION-ID] as "local-uuid" and "remote- uuid". This is designed to also work with the H.323 correlated [H-460-27] which refers to them as "Sender-UUID" and "Recipient- UUID". { "local": String, "remote": String } * "A[]" and array of values of type A. All parameters are assumed to be mandatory unless other wise noted. Objects or arrays with no or null values MAY be excluded from the vCon. 2.3. Inline Files Objects that contain a file or data inline (i.e. within the vCon) MUST have the parameters: body and encoding. JSON does not support binary data values. For this reason inline files MUST be Base64url (see Section 2 [JWS]) encoded to be included as a valid JSON string value if they are not already valid JSON strings. Petrie Expires 2 January 2027 [Page 9] Internet-Draft JSON vCon July 2026 2.3.1. body The body parameter contains the payload of the file to be included inline. Depending upon the data in the file, it may require encoding to be represented as a valid JSON value. * body: "*" 2.3.2. encoding The encoding parameter describes the type of encoding, if any, that was performed to represent the file payload as the value of the body parameter. If the body parameter is provided and is not an empty string, the encoding parameter MUST be provided. In the interest of being tolerant for interoperability, if the encoding value is not provided, applications can attempt to derive the encoding token value based upon the mediatype parameter or filename extension if either is provided. * encoding: "String" This MUST be one of the following strings: * "base64url": The payload of the file has been Base64Url encoded and provided as the string value of the body parameter. * "json": The value of the body parameter is a JSON value (object, array, number, string, or one of the literals true, false, or null) as defined in [JSON]. * "none": The payload of the file is a valid JSON string and can be included without modification as the string value to the body parameter. 2.4. Externally Referenced Files Files and data stored externally from the vCon MUST be "signed" to ensure that they have not been modified. Objects that refer to a file which is externally stored from the vCon MUST have the parameters: url, content_hash. These parameters are defined in the following subsections. The values and format of the hashes are defined in Section 2.2 type: ContentHash. The use of [SHA-512] hash for ensuring that the externally referenced data or file has not been modified, is defined in this document. Other methods of ensuring integrity may be added in the future. Petrie Expires 2 January 2027 [Page 10] Internet-Draft JSON vCon July 2026 2.4.1. url The url value contains the [HTTPS] URL where the externally referenced file is stored. HTTPS MUST be used for retrieval to protect the privacy of the contents of the file. * url: "String" 2.4.2. content_hash The integrity of externally referenced files are protected using a hash of the external content. The algorithm and hash value are contained in the content_hash parameter. The value of the content_hash can be a single token or an array of tokens if multiple hash algorithms are desired to be provided. The SHA-512 [SHA-512] algorithm MUST be supported. Other algorithms MAY be included. The algorithm used for signing the externally referenced file is defined in section 6.3 and 6.4 of [SHA-512]. * content_hash: "ContentHash" | "ContentHash[]" 2.5. Extending vCon vCon provides a means to extend the schema defined in this document. A vCon extension can define new parameters at any level of the schema. It can also redefine the semantics of or deprecate existing parameters. A vCon extension is defined in its own document. In addition to the standard sections of an Internet-Draft, a vCon extension document MUST also contain the following sections. * *Extension Name*: State the registered extensions token name for the extension. State whether and under what conditions the name appears in the extensions (Section 4.1.3) parameter, the critical (Section 4.1.4) parameter, or both. This is the name registered in the vCon Extensions Names Registry (Section 6.4) and the name against which implementations determine whether they support the extension. * *Parameter Definitions*: Define each new parameter, the level of the schema at which it appears, its value type, and its semantics. For any existing parameter whose meaning or permitted values are redefined, state the new semantics and values. For any deprecated parameter, state what is to be used in its stead and the migration approach. Use the snake case naming convention for all parameter names, as opposed to camel case. Register each new parameter in the appropriate Object registry with IANA. Petrie Expires 2 January 2027 [Page 11] Internet-Draft JSON vCon July 2026 * *Compatibility Considerations*: Describe how the extension behaves in the presence of implementations that do not support it. Identify the parameters and semantics the extension introduces or changes, and explain for each why an implementation that does not recognize the extension can continue to process the vCon correctly by ignoring the additions, or state the conditions under which that holds. An extension that is *Compatible* under all conditions states so explicitly and justifies that claim. * *Incompatibility Considerations*: Demonstrate either that the extension introduces no incompatibilities, or enumerate each incompatibility that it does introduce. For each incompatibility, state the processing that is affected, for example redaction versus transcription, whether the extension name is therefore required in the critical (Section 4.1.4) parameter, and the behavior required of implementations that do not support the extension. An extension that claims to be *Compatible* uses this section to show why no incompatibility exists. * *Privacy and Integrity Considerations*: Describe how the extension's parameters interact with redaction and de- identification, including whether any of them can carry party- identifying data or PII and how a redactor is expected to handle them. State whether the extension introduces any new external content references, and if so, the integrity mechanism that protects them, such as Section 2.4.2. Extensions to the vCon schema can be classified into two categories: * *Compatible*: These extensions introduce additional data or fields without altering the meaning or structure of existing elements. Implementations that do not recognize these extensions can safely ignore them while maintaining valid processing of the vCon. * *Incompatible*: These extensions modify existing semantics or schema definitions in ways that render a vCon incompatible with implementations that do not support the extension. Interpreting such a vCon correctly requires explicit awareness of the extension. Petrie Expires 2 January 2027 [Page 12] Internet-Draft JSON vCon July 2026 Wherever feasible, extensions *SHOULD* be designed as *Compatible* to preserve compatibility with existing implementations. The question of Compatible vs Incompatible is a little subjective. A transcriber for vCon can be fairly tolerant of changes adding new parameters or objects to a vCon. On the other hand, a redactor must be aware of the implications of all parameters in the vCon to be sure to redact all of the objective information. In these cases a transcriber will likely only need to look at the critical extensions. However the redactor perhaps should reject vCons with any extension that it does not support. However, when disruptive extensions are necessary, the names of all such extensions *MUST* be listed in the critical (Section 4.1.4) parameter of the vCon. This allows implementations to determine whether they are capable of processing the vCon safely and accurately. Implementations that encounter a vCon containing a disruptive extension listed in the critical parameter, but do not support that extension, *MUST NOT* process the vCon except to reject it or notify the user. 3. vCon JSON Object The JSON form of a vCon is contained in a JSON object in one of three forms: * unsigned * signed * encrypted The unsigned form of the vCon has a single top level object. This top level vCon object is also contained as described in the signed (Section 5.2) and encrypted (Section 5.3) forms of the vCon. The selection of the JSON format enables interchange between application and lower layers of the network stack, critical for enablement of analysis of conversations. The signed form of vCon is defined in Section 5.2 using [JWE] to provide integrity and proof of the conversation data. The encrypted form of vCon is defined in Section 5.3 to provide complete privacy of the conversational data. Partial privacy or data minimization can be provide for a vCon using the Section 4.1.8 construct. Petrie Expires 2 January 2027 [Page 13] Internet-Draft JSON vCon July 2026 4. Unsigned Form of vCon Object The unsigned form of the top level vCon object is necessary as in many cases, a vCon will be partially constructed and in process as conversation data is collected. This may change while the conversation is in progress or on-going. The vCon may start with only meta data and party information, then progress to contain dialog information. It may then get analysis added or it could be passed to another security domain for analysis. A vCon may be constructed across several security domains. When a vCon is to be exported from one security domain to another, it SHOULD be signed or encrypted by the domain that constructed it. The subsequent domain may have need to redact or amend data to the vCon. Alternatively the originating domain may want to redact the vCon before providing it to an other domain. The second or subsequent domain, MAY modify the prior vCon instance version and when complete or exporting to another security domain, it SHOULD sign or encrypt the new vCon instance version. The new vCon instance version SHOULD refer to the prior vCon instance version via the redacted (Section 4.1.8) or amended (Section 4.1.9) parameters. 4.1. vCon JSON Object Keys and Values The keys and values for the top level vCon JSON object are defined in the following subsections. 4.1.1. vcon The "vcon" parameter is DEPRECATED as of the publication of this document as an RFC. The "vcon" parameter was used to differentiate schema changes to the vCon core container when incompatibilities were created in Internet-Draft versions. The extension mechanism replaces the need for schema versioning. The vcon parameter was used to contain the syntactic version of the JSON format used in the vCon. (see Non-Upward Compatible Changes to the vCon Container (Section 7)) * vcon: "String" For syntax defined in this document, the string MUST have the value: "0.4.0" 4.1.2. uuid The [UUID] for the vCon is used to refer to it when privacy or security may not allow for inclusion or URL reference to a vCon. The UUID MUST be globally unique. Petrie Expires 2 January 2027 [Page 14] Internet-Draft JSON vCon July 2026 * uuid: "String" The value of the string SHOULD be generated using the version 8 UUID defined in [UUID] which is generated identically to a version 7 UUID with the exception that: * rand_b/custom_c is generated from the high 62 bits of the SHA-1 hash of the FQHN string * the variant and version fields are set as described for version 8 UUID The DNS name string used in generating the uuid value SHOULD be the same FQHN, or a subdomain to allow for more distributed generation of UUIDs, as would used in the signing certificate as they are the same domains of uniqueness. 4.1.3. extensions The vCon schema can be extended through the definition of new extensions. The extensions parameter SHOULD contain the list of names of all vCon extensions for any parameters used that are not defined in this core vCon schema document. * extensions: "String[]" 4.1.4. critical Implementations that include extensions which are incompatible with the core vCon schema MUST list the names of those extensions in the critical parameter. A vCon that includes a critical parameter indicates that correct interpretation of the vCon requires explicit support for the listed extensions. An implementation that does not recognize or support the extensions listed in the critical parameter MUST NOT attempt to process or operate on the vCon, except to reject it or report unsupported content. * critical: "String[]" 4.1.5. created_at The created_at parameter provides the creation time of this vcon, which MUST be present, and should not change once the vcon object is created. * created_at: "Date" Petrie Expires 2 January 2027 [Page 15] Internet-Draft JSON vCon July 2026 4.1.6. updated_at The updated_at parameter provides the last modified time of this vcon, which MAY be present. For unsigned forms, the updated_at of the vcon object SHOULD be updated as it is modified. For signed forms of the vCon object, the updated_at contains the time when this vcon was last signed. Future updates MUST first set the updated_at to the new signing time as the vcon object is signed again. * updated_at: "Date" 4.1.7. subject The subject or the topic of the conversation is provided in the subject parameter. This parameter is optional as not all conversations have a defined subject. Email threads and prescheduled calls and video conferences typically have a subject which can be captured here. The subject may also be derived from analysis of the dialog. * subject: "String" (optional) The string value of the subject parameter is a free formed JSON string with no constrained syntax. 4.1.8. redacted A redacted vCon SHOULD provide a reference to the unredacted or prior, less redacted, vCon instance version of itself. The purpose of the Redacted Object (Section 4.1.8.1) is to provide the reference to the unredacted or less redacted version of the vCon from which this vCon was derived. For privacy reasons, it may be necessary to redact a vCon to construct another vCon without the PII. This allows the non-PII portion of the vCon to still be analyzed or used in a broader scope. The Redacted Object (Section 4.1.8.1) SHOULD contain the uuid parameter and MAY include the url, content_hash parameters (see Externally Referenced Files (Section 2.4)). If a reference to the unredacted vCon is provided in the url parameter, the access to that URL MUST be restricted to only those who should be allowed to see the identity or PII for the redacted vCon. The method(s) for redaction of text, audio and video can be done with existing post processing of media. The method of redaction is out of scope of this document. The assurance of the accuracy of the redaction is made by the entity that creates the redaction which SHOULD sign the redacted version of the vCon. Petrie Expires 2 January 2027 [Page 16] Internet-Draft JSON vCon July 2026 All data and parameters in the prior, less redacted, vCon instance version are either: * Removed entirely in the redacted version * Copied and partially redacted * Copied as is Data which is to be completely removed from the redacted version, that is contained in a JSON array in the unredacted vCon, SHOULD create an empty placeholder such that object array indices do not change for the rest of the elements of the array. * redacted: "Redacted" (optional, mutually exclusive with amended parameter) 4.1.8.1. Redacted Object A Redacted Object contains the following parameters: * uuid: "String" The value contains the uuid string value (Section 4.1.2) of the unredacted/prior vCon instance version. The absence of a value for uuid indicates that the less redacted version of this vCon is not available or does not exist. * type: "String" The value of the redacted type parameter is used to indicate the type of redaction that was performed on this vCon relative to the less redacted version referenced by the redacted uuid parameter. This should indicate the type of information that was redacted. The the location of the referenced vCon MAY be provided as defined in Externally Referenced Files (Section 2.4) by including url and content_hash. content_hash MUST be included if url is provided. * url: "String" * content_hash: "ContentHash" | "ContentHash[]" The following diagram illustrates an example partial JSON object tree for a redacted vCon. The top level object is a JWS signed vCon which contains a vCon in the unsigned form in the payload parameter. The second level object is the redacted vcon which refers to the encrypted unredacted vCon in it's redacted parameter. Note that the Petrie Expires 2 January 2027 [Page 17] Internet-Draft JSON vCon July 2026 redacted vCon references the JWE encrypted vCon by UUID and may reference it by URL or direct inclusion. The JWE encrypted unredacted vCon contains the signed version of the unredacted vCon in the ciphertext parameter. The signed unredacted vCon contains the unredacted vCon in the unsigned form in it's payload parameter. -------------- Signed | JWS uuid-|-- redacted vCon uuid in header redacted vCon: | | | payload-|-- unsigned redacted vCon in -------------- / payload parameter / ------------- / vCon which |vCon |<--- has been | | redacted: | redacted-|-- Redacted Object ------------- / refers to JWE / encrypted unredacted vCon / / / / / --------------- signed unredacted vCon ->| JWE uuid-|-- uuid in unprotected Encrypted signed | | unredacted vCon: | cyphertext-|--- JWS signed --------------- / unredacted vCon / in cyphertext /-------------------/ parameter / / ------------- Signed -> |JWS uuid-|-- unredacted vCon uuid in header unredacted vcon: | | | payload-|-- unsigned unredacted vCon ------------- \ in payload \ ---------- -->| vCon | Unsigned unredacted vCon: | | ---------- Figure 1: redacted vCon object tree Petrie Expires 2 January 2027 [Page 18] Internet-Draft JSON vCon July 2026 4.1.9. amended A signed or encrypted vCon cannot be modified without invalidating it. In these cases, to allow for adding of additional information a new vCon instance version MUST be created. The prior vCon instance version is referenced by the Amended Object (Section 4.1.9.1). The vCon with amended data contains all of the data that is in the referenced vCon with the exception of data that is amended. That is to say that the newer version of the vCon is a deep copy of the prior version with the amended and additional data added to it. The prior vCon instance version SHOULD be referenced via the uuid of the prior vCon instance version, and MAY include the url and content_hash parameters (see Externally Referenced Files (Section 2.4)). * amended: "Amended" (optional, mutually exclusive with redacted parameter) 4.1.9.1. Amended Object The Amended Object contains the following parameters: * uuid: "String" (optional if inline or external reference provided) The value contains the uuid string value (Section 4.1.2) of the unredacted/original vCon instance version. The location of the referenced vCon MAY be provided, as defined in Externally Referenced Files (Section 2.4) by including url and content_hash. content_hash MUST be provided if url is provided. * url: "String" * content_hash: "ContentHash" | "ContentHash[]" The following figure illustrates an example partial JSON object tree for an amended vCon. The top level object is the JWS signed amended vCon which contains the unsigned form of the vCon in it's payload parameter. The second level object is the amended vCon with additional conversational data (e.g. analysis data). It refers to its original parent (or prior vCon instance version) of the vCon in its amended parameter. Note: the amended parameter may refer to the prior version of the vCon via URL. The amended vCon in this figure refers to the JWS signed version of the vCon, which in turn contains the original vCon in unsigned form in its payload parameter. Petrie Expires 2 January 2027 [Page 19] Internet-Draft JSON vCon July 2026 -------------- Signed | JWS uuid-|-- amended vCon uuid in header amended vCon: | | | payload-|-- payload parameter -------------- / contains unsigned / amended vCon ------------- / vCon with |vCon |<--- amended | | data: | amended-|--- amended parameter | analysis-| / refers to JWS ------------- / signed original vCon / along with additional / conversational data / (e.g. analysis) / / / ------------ ->| JWS uuid-|-- original vCon uuid in header signed | | original vCon: | payload-|--- payload parameter ------------ / contains unsigned / original vCon ------------- / Original vCon: |vCon |<-- | | | parties | | dialog | ------------- Figure 2: amended vCon object tree 4.1.10. parties Objects Array The name, identity or contact information of all of the parties involved with the conversation are included in the parties object array. Whether the parties were observers, passive or active participants in the conversation, they each are included as a Party Object in the parties array. * parties: "Party[]" The value of the parties parameter is an array of Party Objects (Section 4.2). Petrie Expires 2 January 2027 [Page 20] Internet-Draft JSON vCon July 2026 4.1.11. dialog Objects Array The actual conversation which occurred over text, audio or video that was captured, is contained in the dialog Objects Array. * dialog: "Dialog[]" (optional) The value of the dialog parameter is an array of Dialog Objects (Section 4.3). It should be noted that the Dialog Objects may not be sorted in chronological order. They are in the order that they were added. It is the applications responsibility to sort dialog and transcriptions if they are needed in chronological order. 4.1.12. analysis Objects Array Analysis, which is performed on the conversational data, is stored in the analysis Objects array. * analysis: "Analysis[]" (optional) The value of the analysis parameter is an array of Analysis Objects (Section 4.5). 4.1.13. attachments Objects Array Ancillary documents, discussed, presented, referenced or related to the conversation may be stored in the attachments array. It should be noted that the Attachment Objects may not be sorted in chronological order. They are in the order that they were added. * attachments: "Attachment[]" (optional) The value of the attachments parameter is an array of Attachment Objects (Section 4.4). 4.2. Party Object A Party Object contains information about a specific party or participant in the conversation. The information that is available about the party varies with the context, the communication mode and platform. There are times when no information is available for a party either initially or over the entire life of the vCon. In such situations, it is possible to have a Party Object with no parameters in it. A Party Object SHOULD be created for each participant. This may result in more than one empty Party Object. They are distinct by the order or index in the Party Object array. Petrie Expires 2 January 2027 [Page 21] Internet-Draft JSON vCon July 2026 4.2.1. tel If the tel URL for the party is known, it can be included in the tel parameter. * tel: "String" (optional) The value of the tel parameter SHOULD be a valid [TEL] URL. The URL scheme prefix (i.e. "tel:") is optional. 4.2.2. sip The [SIP] URL for the party can be provided in the sip parameter. * sip: "String" (optional) The value of the sip parameter is the addr-spec as defined in section 25.1 of [SIP]. 4.2.3. stir If the STIR [PASSporT] was provided to identify the party, the PASSporT can be included in the stir parameter for the party. * stir: "String" (optional) The string value of the stir parameter contains the [PASSporT] in the JWS Compact Serialization form. 4.2.4. mailto If the mailto URL is known for the party, it can be included in the mailto parameter. * mailto: "String" (optional) The value of the mailto parameter is a string containing an email address for the party. It MAY be provided in any common form, such as a bare address or a [MAILTO] URL; when a [MAILTO] URL is used, the "mailto:" scheme prefix is optional. 4.2.5. name If the party's name is known, it can be included in the name parameter. * name: "String" (optional) Petrie Expires 2 January 2027 [Page 22] Internet-Draft JSON vCon July 2026 The string value of the name parameter is a free form JSON string in which part or all of the party's name can be included. It may be necessary, for privacy reasons, to not identify any information about the party. This MAY be indicated by creating a Party Object with only the name parameter and setting its value to "anonymous". A Party Object SHOULD be create for each anonymous party in the conversation. This is necessary to capture the number of parties and distinction between which party contributed what data or dialog in the conversation. Hence it is possible to have multiple anonymous Party Objects in the vCon. They are distinct by the order or index in the Party Object array. 4.2.6. did If a Decentralized Identifier [DID] is known for the party, it can be included in the did parameter. * did: "String" (optional) The value of the did parameter MUST be a valid DID URI that enables verifiable, decentralized digital identity for the party. DIDs are designed to be decoupled from centralized registries and identity providers, allowing the controller of the DID to prove control without requiring permission from other parties. The DID can refer to any subject (person, organization, thing, etc.) as determined by the controller of the DID. 4.2.7. validation Proof of authorization of the communication channel through STIR, login or possession of a device, is often not sufficient proof of the identity of the person at the other end of the communications channel. It is common in call centers to validate the identity of the person on the communication channel through verification of some sort of personal identification information. The methods used, often varies with the situation and is business practices specific. The purpose of the validation parameter, is to allow the validator to save a label or token which identifies the method of identity validation used to identify the person at the other end of the communication channel. For confidentially reasons, it SHOULD NOT contain the data used to validate the name. However it MAY name the data used to validate the name (e.g. "SSN", "DOB", "user ID and password"). It is up to the domain creating the vCon to define the set of tokens or values to be used for the validation parameter. * validation: "String" (SHOULD be provided if name parameter is provided) Petrie Expires 2 January 2027 [Page 23] Internet-Draft JSON vCon July 2026 The value of the validation string MAY be "none" or enterprise or domain defined token or string values. 4.2.8. gmlpos If the geolocation of the party is known, it can be added in the gmlpos parameter. The gmlpos parameter contains the latitude and longitude of the location of the party at the time of the conversation start. * gmlpos: "String" (optional) The gmlpos parameter value contains a string of the same format as the gml:pos element defined in section 3.2 of the [PIDF-LO] PIDF. 4.2.9. civicaddress The the civicaddress parameter value contains a Civicaddress Object which is optional and contains civic address information about the location for the party. * civicaddress: "Civicaddress" (optional) The Civicaddress Object MAY contain any or all of the following parameters: country, a1, a2, a3, a4, a5, a6, prd, pod, sts, hno, hns, lmk, loc, flr, nam, pc as defined in section 2.2.1 of [GEOPRIV]. The values of all of these parameters are of type String. Note that the parameter names MUST be in lower case when contained in the Civicaddress Object even though they are in upper case in [GEOPRIV]. * country: "String" (optional) * a1: "String" (optional) * a2: "String" (optional) * a3: "String" (optional) * a4: "String" (optional) * a5: "String" (optional) * a6: "String" (optional) * prd: "String" (optional) * pod: "String" (optional) Petrie Expires 2 January 2027 [Page 24] Internet-Draft JSON vCon July 2026 * sts: "String" (optional) * hno: "String" (optional) * hns: "String" (optional) * lmk: "String" (optional) * loc: "String" (optional) * flr: "String" (optional) * nam: "String" (optional) * pc: "String" (optional) 4.2.10. uuid The uuid is a unique identifier for the participant. In a contact center, this is particularly important for the call agent participant, and must be static across interactions to allow correlation with the actual agent configuration provisioned into the systems. * uuid: "String" (optional) 4.2.11. type There are different types of parties that participate in or contribute information to a conversation. The type parameter may be used to indicate the type of participant represented by the Party Object. * type: "String" (optional) The value of the type parameter SHOULD be one of the following: "person", "bot", "organization" 4.2.12. org The party may belong to or be an organization. The org parameter is a free form text string for containing the organization identifier. * org: "String" (optional) Petrie Expires 2 January 2027 [Page 25] Internet-Draft JSON vCon July 2026 4.2.13. dept The party may belong to a department with in an organization. The dept parameter is a free form text string for containing the party's department identifier. * dept: "String" (optional) 4.3. Dialog Object The Dialog object references or contains text, audio or video captured from the conversation. Currently five types of dialog objects are defined in this document: * Text based media communications * Audio or Video recorded media communications * Metadata for failed or incompleted communications * Metadata for providing relationships between other Dialog Objects in transfer scenarios * Metadata for providing relationships between recording Dialog Objects in recording-set scenarios Media-based Dialog Objects (type text and recording) SHOULD contain only media that is transcribable. Media that is transcribable can be converted into a textual representation of sequential communication between parties. While images such as sunsets, cows, photographs of documents, or application forms may be describable, they are not transcribable in a concise manner and SHOULD NOT be included as Dialog Objects. They SHOULD be included as Attachment Objects. Text and audio may be subject to interpretation, but they are transcribable to a precise dialog representation. Although transcriptions may not always be accurate, there exists a single correct transcription for any given content. Media that is not transcribable SHOULD be included in the vCon as Attachment Objects rather than Dialog Objects. For example, a fax or photograph of a text-based letter is transcribable and MAY be included as a Dialog Object. Most other faxes and photographs SHOULD be included as Attachment Objects and SHOULD NOT be included as Dialog Objects. Similarly, a musical recording, even if it is in MP3 audio format, SHOULD be included as an Attachment and SHOULD NOT be included as a Dialog Object. Petrie Expires 2 January 2027 [Page 26] Internet-Draft JSON vCon July 2026 It may not always be known at the time of vCon construction whether an image or recording is transcribable. This distinction is important for interoperability. If it is ambiguous as to what belongs in a Dialog Object versus an Attachment Object, interoperability cannot be achieved, as vCon constructors will not be able to consistently determine where content should be placed and users of vCons will not know where content can be found within the vCon. There are situations when no information is available for a dialog either initially or over the entire life of the vCon and yet it is known that the dialog occurred. For example this may occur in some call transfer cases where there is nothing known about the consultative call. In such situations, it is possible to have a Dialog Object with no parameters in it. There may even be more than one empty Dialog Object. They are distinct by the order or index in the Dialog Object array. 4.3.1. type * type: "String" The sting MUST have the value of either "recording", "recording-set", "text", "transfer" or "incomplete". A dialog of type "recording" has Dialog Content that either contains a body or refers to via url, which is a recording of the video and/or audio of a segment of the conversation. A dialog of type "recording-set" contains metadata describing a set of "recording" Dialog Objects that collectively represent a call or session. A dialog of type "text" has Dialog Content that either contains a body or refers to via url, which contains the text from one of the parties for a segment of the conversation. A dialog of type "transfer" does not capture actual conversation exchange, but rather captures operations, parties and relations between dialog segments. A dialog of type "incomplete", "transfer" or "recording-set" MUST NOT have Dialog Content. In the "incomplete" case the call or conversation failed to be setup to the point of exchanging any conversation. Incomplete Dialog Objects MUST have a disposition parameter which indicates why the call or conversations failed. In the "transfer" case, the conversation is recorded in other Dialog Objects. In the "recording-set" case, the conversation is recorded in one or more "recording" Dialog Objects. The Dialog Transfer parameters are used to show the roles and relationships between the parties and other Dialog Objects as the transfer process occurred. The recording-set parameters are used to identify the set of "recording" Dialog Objects that collectively represent a call or session. Petrie Expires 2 January 2027 [Page 27] Internet-Draft JSON vCon July 2026 4.3.2. start The start parameter contains the date and time for the beginning of the captured piece of dialog. For text it is the time that the party started typing or if not available, then it is the time the text was sent. For audio and video recordings, it is the time which corresponds to the beginning of the recording. For a recording-set Dialog Object, it is the time corresponding to the beginning of the call or session. It should be noted that Dialog Objects may not be ordered by the value of the start parameter. Dialog Objects in the dialog array are in order that they were added to the vCon and cannot be reordered with out correcting the dialog indices which occur in other Objects in the vCon. * start: "Date" 4.3.3. duration The duration parameter contains the duration in seconds of the referenced or included piece of dialog. For text, if known, it is the time duration from when the party started typing to when they completed typing and the text was sent. For recordings, it is the duration of the recording. For a recording-set Dialog Object, it is the duration of the call or session. The start and duration parameters of a recording-set Dialog Object identify the complete time interval represented by the associated recording Dialog Objects. * duration: "UnsignedInt" | "UnsignedFloat" (optional) The value MUST be the dialog duration in seconds. 4.3.4. parties The party(s) which generated the text or recording for this piece of dialog are indicated in the parties parameter. * parties: "UnsignedInt" | "UnsignedInt[]" | ("UnsignedInt" | "UnsignedInt[]")[] Single channel recordings should have a parties value of the form: "UnisignedInt" or "UnsignedInt[]" where the integer value or array of integer values are the indices to the Party Object(s) in the parties array that contributed to the mix for the single channel recording. The index for the Party Object SHOULD be included even if the indicated party was silent the entire piece of dialog. Petrie Expires 2 January 2027 [Page 28] Internet-Draft JSON vCon July 2026 Multi-channel recordings MUST have a parties value that is an array of the same size as the number of channels in the recording. The values in that array are either an integer or an array of integers which are the indices to the parties that contributed to the mix for the associated channel of the recording. The index for Party Objects SHOULD be included even if the party was silent the entire conversation. If not all channels are used in a recording, such that no parties are recorded on one or more channels, a null placeholder MUST be inserted into the parties array for the corresponding channel. Some recording systems represent a single call or session using multiple recording Dialog Objects. This may occur when recordings are periodically segmented or when separate recordings are created for each party and talk spurt. In these cases, a single recording Dialog Object identifies only the parties captured, or potentially captured, in that recording. Other participants are identified only in the recording Dialog Objects in which they are captured or potentially captured. As a result, no single recording Dialog Object necessarily identifies all parties participating in the conversation. Similarly, party_events need to be associated with a Dialog Object, but a recording Dialog Object may not exist for the point in time at which the event occurs. A recording-set Dialog Object MAY be used to represent the complete call or session. The start parameter of a recording-set Dialog Object identifies the beginning of the call or session. The duration parameter of a recording-set Dialog Object identifies the duration of the call or session. The parties parameter of a recording-set Dialog Object SHOULD contain all parties known to participate in the call or session, regardless of whether they contribute recorded media. It is implied that the first party in the dialog Object parties list, is the originator of the dialog. However, in some situations, it is difficult to impose the constraint that the first channel of a recording is the originator. If ensuring that the first channel and party listed is the originator is not possible, the optional originator parameter indicates the originator party. In other cases, there may be a separate recording file for each party in a conversation, where only one party is recorded per file. In this situation, it is necessary to indicate the originator as the dialog Object parties parameter may contain only one party and may not be the originator. It should be noted that the recordings may be shorter than the collective conference when there is a separate recording per speaker/party. For example the recording(s) of the individual speaker may be trimmed to only the parts where they are actually speaking. Petrie Expires 2 January 2027 [Page 29] Internet-Draft JSON vCon July 2026 In the email context, [SMTP] messages have the headers From, To, Cc and Bcc that all correspond to parties to the text Dialog Object. The From header should be the first party index in the parties parameter for the text Dialog Object. They are the implied originator. The parties listed in the To, Cc and Bcc [SMTP] headers (if present) should all be added in that order to the parties parameter in the text Dialog Object. The sender SHOULD be allowed to set a policy, through out of band means, as to whether they would like their application or server to include the Bcc parties in the vCon. A text Dialog Object should only contain a single [SMTP] message. Each may have a different set of parties. 4.3.5. originator The originator party for this dialog. For email and text, this is the sender of the text. For audio and video, this is the caller or host of the call or conference. The originator parameter is only provided if the first party of the dialog Object parties list is NOT the originator. * originator: "UnsignedInt" (optional) The originator value is the index into the parties Objects Array, to the party that originated the dialog. 4.3.6. recordings The recordings parameter identifies the recording Dialog Objects that are part of the recording-set Dialog Object. * recordings: "UnsignedInt[]" The recordings parameter contains the indices of all recording Dialog Objects that are part of the recording-set. The recordings parameter MUST be present in recording-set Dialog Objects. The recordings parameter MUST NOT be present in other Dialog Object types. 4.3.7. recording_set The recording_set parameter identifies the recording-set Dialog Object to which the recording Dialog Object belongs. * recording_set: "UnsignedInt" (optional if not part of a recording- set) The recording_set parameter SHOULD be present when a recording Dialog Object is part of a recording-set Dialog Object. The recording_set parameter MUST NOT be present in other Dialog Object types. Petrie Expires 2 January 2027 [Page 30] Internet-Draft JSON vCon July 2026 4.3.8. mediatype The media type for the piece of dialog included or referenced is provided in the mediatype parameter. The mediatype parameter MUST be provided for inline dialog files and MUST be provided if the Content- Type header in the [HTTPS] response for the externally referenced URL is not provided. * mediatype: "Mediatype" (optional for externally referenced files, if absent, this is provided in the [HTTPS] Content-Type header) The media types SHOULD be one of the following strings: * "text/plain" * "audio/x-wav" * "audio/x-mp3" * "audio/x-mp4" * "audio/ogg" * "video/x-mp4" * "video/ogg" * "multipart/mixed" Note: multi-part will also likely include the boundary parameter 4.3.9. filename It is sometimes useful to preserve the name of the file which originally contained this piece of dialog. This can be done in the filename parameter. * filename: "String" (optional) 4.3.10. Dialog Content The Dialog Object SHOULD contain the body and encoding parameters or the url and content_hash parameters for all dialog types other than "incomplete", "transfer" and "recording-set", these parameters MUST NOT be present for "incomplete", "transfer" or "recording-set" dialog types (see Inline Files (Section 2.3) and Externally Referenced Files (Section 2.4)). The exception to this is that the body or url MAY be absent if it is redacted. Petrie Expires 2 January 2027 [Page 31] Internet-Draft JSON vCon July 2026 For inline included dialog: * body: "*" (optional in an a redacted vCon) * encoding: "String" Alternatively, for externally referenced dialog: * url: "String" (optional in an a redacted vCon) * content_hash: "ContentHash" | "ContentHash[]" 4.3.11. disposition If the dialog type is "incomplete", it must have a disposition parameter. The value of the disposition parameter provides the reason that the "call control" failed. The term: "call control" is used in a loose sense, as there in not always a call involved, to differentiate from a call disposition that an agent may assign to a call to indicate the reason, issue addressed or outcome of a conversation. This latter definition of call disposition is not dialog, but analysis of the conversation and is not included in the dialog portion. * disposition: "String" (required for incomplete type Dialog Objects, SHOULD NOT be present for other dialog types) The value of the disposition parameter MUST be one of the following string: * "no-answer" - a call or connection was attempted, but no one answered or accepted the connection * "congestion" - a call or connection was attempted, but was unable to be completed due to system load * "failed" - a call or connection was attempted, but failed * "busy" - a call or connection was attempted, but the party was busy with another conversation * "hung-up" - a call or connection was made, but the party hung-up before any conversation occurred * "voicemail-no-message" - a call or connection was made, the voicemail system answered, but no message was left Petrie Expires 2 January 2027 [Page 32] Internet-Draft JSON vCon July 2026 Note: if a message was left with the voicemail system this is no longer an "incomplete" type dialog, it is a "recording" type and the conversation SHOULD be included in the Dialog Content. 4.3.12. session_id The [SESSION-ID] MAY be included for the dialog. If the same [SESSION-ID] applies to all the parties in a dialog, than a single instance of the SessionId Object is provided as the value of session_id. If some parties have a different or no associated [SESSION-ID] for this Dialog Object, then the array structure of the session_id objects MUST correlate to the array structure of the Dialog Object's parties index array. Parties which do not have a [SESSION-ID] associated with this dialog, MUST have an empty object ({}) for the SessionId Object. That an empty Object and not an Object with two "nil UUIDs" as defined in section 7 of [SESSION-ID]. It is also possible that the SessionId Object will not have values for both the local and remote parameters in some conferencing situations (See [SESSION-ID]). In the case that one end of the [SESSION-ID} does not have a UUID, the "nil UUID" String value SHOULD be used as defined in section 7 of [SESSION-ID]. * session_id: "SessionId" | "SessionId[]" | ("SessionId" | "SessionId[]")[] (optional) 4.3.13. party_history Objects Array Participants in a dialog may not all join and leave at the same time. To support the capturing of the information when parties join, drop, go on hold or mute and unmute, the party_history array may be added to the Dialog Object. * party_history: "Party_History[]" (optional) 4.3.13.1. Party_History Object The Party_History Object contains the following parameters: * party: "UnsignedInt" The index of the party for this event. * time: "Date" The time at which this event occurred. * event: "String" Petrie Expires 2 January 2027 [Page 33] Internet-Draft JSON vCon July 2026 The string token for the event which MUST be one of the following: - "join" - when the party joins the dialog - "drop" - when the party drops out of the dialog - "hold" - when the party is put on hold - "unhold" - when the part is taken off hold - "mute" - when the party is muted - "unmute" - when the part is taken off mute - "keydown" - when a DTMF or application key/button was pressed - "keyup" - when a DTMF or application key/button was released * button: "String" - (required for keydown and keyup events) The button parameter value is the String value of the DTMF digit, character or string label for the button that was pressed or released. 4.3.14. Dialog Transfer A dialog of type "transfer" documents the roles of three parties and the relationship between 2 or three dialog segments. In a transfer operation, the roles of the three parties to a transfer are defined in [SIP-XFER] as: * Transferee * Transferor * Transfer Target There are two or three calls in which the parties are connected: * original call * consultative call (optional as this call may not get created) * target call To capture the above roles and dialog segments, the following parameters are defined and SHOULD be present in the "transfer" type dialog and MUST NOT be present in other dialog types. Petrie Expires 2 January 2027 [Page 34] Internet-Draft JSON vCon July 2026 * transferee: "UnsignedInt" The value of the transferee parameter is the index into the parties Object array to the party that played the role of the Transferee. * transferor: "UnsignedInt" The value of the transferor parameter is the index into the parties Object array to the party that played the role of the Transferor. * transfer_target: "UnsignedInt" | "UnsignedInt[]" The value of the transfer_target parameter is the index into the parties Object array to the party that played the role of the Transfer Target. The consultation, target_dialog and original parameters all refer to the Dialog Objects that correspond to the 2 to 3 calls that are part of a transfer. These calls may end up spread across multiple Dialog Objects due to the nature of how the calls are recorded. For example each party may be recorded in a separate file which will result in a dialog for each. Alternatively a call may go on hold where recording is stopped and back off again resulting where recording is started again in a separate recording file, resulting in multiple Dialog Objects. For this reason, the values for the consultation, target_dialog and original parameters MAY have a single UnsignedInt or an array of UnsignedInt. There are scenarios where we know that a transfer has occurred, but we have no Dialog Object information for one or two of the consultation, target or transfer calls. In this case an empty Dialog Object is created and its index is used for the consultation, target_dialog or original parameter. A unique Dialog Object SHOULD be referenced for each role in the transfer. However a Dialog Object may be referenced in more than one transfer dialogs when multiple transfers occur. * original: "UnsignedInt" | "UnsignedInt[]" The value of the original parameter is the index/indices into the dialog Object array to the "recording" or "text" type Dialog Object for the original dialog between the Transferee and the Transferor. * consultation: "UnsignedInt" | "UnsignedInt[]" (optional) The value of the consultation parameter is the index/indices into the Dialog Object array to the "recording", "text" or "incomplete" type Dialog Object for the consultative dialog between the Transferor and Petrie Expires 2 January 2027 [Page 35] Internet-Draft JSON vCon July 2026 the Transfer Target. It is also possible for there to be more than one consultation. This may occur for a number of reasons. Call attempts may fail. The caller may decide the consultation with a party is not the desired transfer target. * target_dialog: "UnsignedInt" | "UnsignedInt[]" The value of the target_dialog parameter is the index/indices into the Dialog Object array to the "recording", "text" or "incomplete" type dialog for the target dialog between the Transferee and the Transfer Target. A "transfer" type dialog MUST NOT contain the parties, originator, mediatype, filename or Dialog Content parameters. The "transfer" type dialog only captures the roles, operations and events of the parties and the dialog setup. It does not capture the purpose or reason for the transfer as that is analysis to be captures in the analysis section of the Vcon after the conversation has occurred. 4.3.15. application The application parameter is used to capture the application, communication channel or context over which the conversation was held. The conversation mode can be identified by looking at the dialog type. However that does not different between different communication platform service providers or hosting service. For example, the application parameter can be used to identify the web conference hosting service. * application "String" (optional) 4.3.16. message_id Some messaging systems assign a unique message identifier to each message. The message_id parameter may be used to label the message for either cross referencing back to the messaging system or to prevent the addition of duplicate messages to the vCon. For example SMTP [SMTP] messages have a message-id in the SMTP header. In the SMTP case a message may exist in multiple mailboxes or tags. When exporting these SMTP messages, the message_id parameter may be used to avoid adding the same message, to the vCon containing the email thread, more than once. * message_id: "string" (optional) Petrie Expires 2 January 2027 [Page 36] Internet-Draft JSON vCon July 2026 4.4. Attachment Object Ancillary documents to the conversation are included or referenced in the Attachment Object. There is no constraint on the types files which can be included or referenced. As most modes of communication, that allow the exchange of files, do not constrain the file type, any file type may be included here. 4.4.1. purpose The purpose parameter may be used to provide a text base description of the purpose or point of the attachment. There is no restricted set of values for this description. * purpose: "String" (optional) 4.4.2. start The start parameter contains the date and time that the Attachment Object was sent/exchanged. It should be noted that Attachment Objects may not be ordered by the value of the start parameter. Attachment Objects in the attachments array are in order that they were added to the vCon and cannot be reordered with out correcting the attachment indices which may occur in other Objects in the vCon. * start: "Date" 4.4.3. party In most conversations, ancillary documents originate from one of the parties involved in the conversation. This party is not necessarily the document's author, but rather the party that distributed the document. The distributing party is identified by the party parameter in the Attachment Object. To provide provenance for the attachment, the party index MUST be specified. The identified party need not be a participant in the conversation itself. For example, an organization that processes or constructs the vCon may add attachments containing information about the conversation. The organization or entity that adds the attachment SHOULD be represented as a Party Object. * party: "UnsignedInt" The value of the party parameter is the index into the Party Object array to the party that contributed the attachment. Petrie Expires 2 January 2027 [Page 37] Internet-Draft JSON vCon July 2026 4.4.4. dialog Attachments are added as data related to the dialog. The dialog parameter is used to identify the dialog that the attachment is part of. The dialog is identified by the index to the dialog Object in the dialog objects array. * dialog: "UnsignedInt" 4.4.5. mediatype The media type for the included or referenced attachment file is provided in the mediatype parameter. * mediatype: "Mediatype" (optional for externally referenced files, if absent, this is provided in the [HTTPS] Content-Type header) The mediatype string contains the media type or [MIME] type of the attached file. 4.4.6. filename It is sometimes useful to preserve the name of the file which originally contained this attachment file. This can be done in the filename parameter. * filename: "String" (optional) The file name string contains an optional name for the attachment file referenced in this Attachment Object. 4.4.7. Attachment Content The Attachment Object SHOULD contain the body and encoding parameters or the url and content_hash parameters (see Inline Files (Section 2.3) and Externally Referenced Files (Section 2.4)). The exception to this is that the body or url MAY be absent if it is redacted. For inline included attachments: * body: "*" * encoding: "String" Alternatively, for externally referenced attachments: * url: "String" Petrie Expires 2 January 2027 [Page 38] Internet-Draft JSON vCon July 2026 * content_hash: "ContentHash" | "ContentHash[]" 4.5. Analysis Object Analysis is a broad and in some cases developing field. This document does not attempt to suggest a SHOULD support list of types. Nor are formats for analysis data defined in this document. That is for research and specification outside the scope of this document. For this reason the Analysis Object provides multiple ways to define the media type of the analysis file. If a well known media type is defined, it SHOULD be used. For analysis data or files types for which a media type is not defined, the vendor and schema parameters SHOULD be used. 4.5.1. type The type parameter is used to label the semantic type of analysis data. * type: "String" The string value SHOULD be one of the following: * "report" * "sentiment" * "summary" * "transcript" * "translation" * "tts" 4.5.2. dialog Analysis typically pertains to one or more of the Dialog Objects in the dialog array. The dialog parameter is used to indicate which Dialog Objects this analysis was based upon. * dialog: "UnsignedInt" | "UnsignedInt[]" (optional only if the analysis was not derived from any of the dialog) The value of the dialog parameter is the index to the dialog or array of indices to the Dialog Object array to which this analysis object corresponds. Petrie Expires 2 January 2027 [Page 39] Internet-Draft JSON vCon July 2026 4.5.3. attachment The analysis may pertain to one or more of the Attachment Objects in the attachment array. The attachment parameter is used to indicate which Attachment Objects this analysis was based upon. * attachment: "UnsignedInt" | "UnsignedInt[]" (optional only if the analysis was not derived from any of the attachments) The value of the attachment parameter is the index to the attachment or array of indices to the Attachment Object array to which this analysis object corresponds. 4.5.4. mediatype The media type for the included or referenced analysis file is provided in the mediatype parameter. * mediatype: "Mediatype" (optional for externally referenced files, if absent, this is provided in the [HTTPS] Content-Type header) The mediatype string contains the media type or [MIME] type of the analysis file. 4.5.5. filename It is sometimes useful to preserve the name of the file which originally contained this analysis data. This can be done in the filename parameter. * filename: "String" (optional) The file name string contains an optional name for the analysis data file referenced in this Analysis Object. 4.5.6. vendor There may not be a IANA registered media type for the file format containing the analysis data. Even if a media type is defined, it is often useful to keep a record of the vendor that produced the software that produced the analysis. Different implementations perform differently and knowing the implementation can be useful in interpreting the analysis. For this reason, the vendor or product name is provided in the vendor parameter. * vendor: "String" Petrie Expires 2 January 2027 [Page 40] Internet-Draft JSON vCon July 2026 The vendor string value contains the vendor or product name of the software which generated this analysis. 4.5.7. product As the vendor may have more than one product, the product parameter may be used to differentiate it from other products which may have different schemas of analysis data. * product: "string" (optional) 4.5.8. schema The same vendor or software product may produce different formats or data for the same analysis. The schema parameter allows the data format, schema or configuration used to generate the analysis to be saved with the included or referenced analysis data. * schema: "String" (optional) The schema string contains a token or label for the data format or schema for the analysis data. As the vendor name may not be specific enough to identify the format of the analysis, the schema value is provide to differentiate from potentially multiple data formats for analysis provided by the same vendor or software. 4.5.9. Analysis Content The Analysis Object SHOULD contain the body and encoding parameters or the url and content_hash parameters (see Inline Files (Section 2.3) and Externally Referenced Files (Section 2.4)). The exception to this is that the body or url MAY be absent if it is redacted. For inline included analysis: * body: "*" * encoding: "String" Alternatively, for externally referenced analysis: * url: "String" * content_hash: "ContentHash" | "ContentHash[]" Petrie Expires 2 January 2027 [Page 41] Internet-Draft JSON vCon July 2026 5. Security Considerations The security concerns for vCons can put into two categories: making the conversation immutable through integrity verification and protecting the confidentiality of privacy of the parties to the conversation and/or their PII. These requirements along with need to evolve a vCon (e.g. adding analysis, translations and transcriptions) conflict in some ways. To enable this, multiple versions of a vCon may be created. Versions of a vCon may add information (e.g. analysis added to a prior vCon referenced by the amended (Section 4.1.9)) and versions that remove information (e.g. redactions of privacy information removed from the vCon referenced in the redacted (Section 4.1.8)). Redactions may be at different levels for example: * PII masked to remove PII data in the text, audio, video or transcripts * De-identified to remove segments or whole recordings that might be used for voice printing or facial recognition Different parts and versions of a vCon may be created in different security domains over a period of time. In addition, some conversation data may be referenced externally through an HTTPS URL as opposed to completely contained within the vCon. Typically a conversation of one mode, will be hosted or observed in a single domain. This will likely fall into one of the following hosting situations: * Enterprise Hosted Communications * Software as a Service (SaaS) Hosted Communications * Service Provider Hosted Communications Petrie Expires 2 January 2027 [Page 42] Internet-Draft JSON vCon July 2026 The distinction among these has gotten clouded over recent years. The import consideration is that each is a different security domain. Information about a conversation captured in an enterprise communications system (e.g. meta data and Dialog Object(s) recorded in an IP PBX) is a different security domain from a SaaS transcription service (i.e. an Analysis Object). Before a vCon leaves a security domain, it SHOULD be signed to prevent it from being altered. If the new security domain needs to alter it, a new vCon is created with the removed or added data and the prior version is referenced (i.e. via the redacted (Section 4.1.8) or amended (Section 4.1.9)). See the redacted vCon object tree figure-1 and amended vCon object tree figure-2. If information is redacted for privacy reasons, the vCon referenced in the redacted (Section 4.1.8), if inline, SHOULD be encrypted to protect the privacy information in the unredacted version of the vCon. The secure storage and access of externally referenced conversation data is considered out of scope from this document. Secure mechanisms for HTTPS access and storage of files are well defined. Identity and credentials for accessing externally stored data will be exchanged out of band from the vCon. The one requirement for externally referenced data from the perspective of this document, is proof of integrity of that data. Using the above described approach for redaction and amending of data, we can reduce the security operations on a vCon to signing and encryption. Two approaches to signing are needed as we have data, in JSON format, that is contained within the vCon and may have data (typically media and file formats, often binary) not contained, inline in the vCon, that is externally referenced. Externally referenced data will be "signed" using [SHA-512] hash which along with the URL of the externally referenced data is included in the vCon. [SHA-512] was chosen due to the relatively low cost to generate and verify the signature for what could be very large externally referenced media files. As the hash for each externally referenced file is contained in the vCon which will be signed, the chain of authentication is provided via the signature on the vCon itself. This document specifies the JSON format for vCons. So it seemed the logical solution for signing vCons, is JOSE [JWS] JSON Serialization and likewise for encrypting vCons is JOSE [JWE] JSON Serialization. The solutions are well documents, implementations are readily available and tested. Petrie Expires 2 January 2027 [Page 43] Internet-Draft JSON vCon July 2026 Methods of redaction exist for text, audio and video using post processing of the media. The method of redaction used is out of the scope of this document. A redacted vCon SHOULD reference it's non- redacted version. The non-redacted version of the vCon referenced from the redacted vCon MUST be encrypted such that only those with permission to view the non-redacted content can decrypt it. Any time a vCon is shared outside its original security domain, it SHOULD be signed and optionally encrypted. Files externally referenced by a vCon SHOULD always be signed with the verification information included in the vCon that references the external file as defined in Externally Referenced Files (Section 2.4) and Signing Externally Referenced Files (Section 5.1). Externally referenced files SHOULD only be transported over [HTTPS] and SHOULD be access controlled to those who are permitted to read the contents of that non-redacted vCon. vCons transported over non-secure channels such as email MUST be in the encrypted form. 5.1. Signing Externally Referenced Files In some deployments, it is not practical to include all of the file contents of a vCon inline. In support of that, a file may be externally referenced. When external files are referenced, the signature on the vCon does not secure the file contents from modification. For this reason any externally referenced files SHOULD also have a signature. vCons use the [SHA-512] hash method for integrity checking of externally referenced file content and include its url and content_hash in the vCon which are included in the integrity signature for the whole vCon. After retrieving externally referenced files, before using its content, the payload of the HTTPS request should be verified using the signature parameter value for the hash for the url body using the procedure defined in section 6.3 and 6.4 of [SHA-512]. 5.2. Signed Form of vCon Object A signed vCon uses [JWS] and takes the General JWS JSON Serialization Syntax form as defined in section 7.2.1 of [JWS]. The vCon General JWS JSON Serialization MUST include x5c or x5u in the unprotected header. * payload: "String" The value of the payload is the Base64Url Encoded string containing either: the unsigned form of the JSON vCon; or the gzipped [GZIP] unsigned form of the JSON vCon. The general construction of the payload string value is described in section 7.2.1 of [JWK] Petrie Expires 2 January 2027 [Page 44] Internet-Draft JSON vCon July 2026 * signatures "Signature[]" The value of signatures is an array of Signature Objects (Section 5.2.1) 5.2.1. Signature Object The Signature Object MUST contain a header, protected and signature parameter as defined in section 7.2.1 of [JWS]. * header: "Header" The value of header is defined in Header Object (Section 5.2.2) * protected: "String" * signature" "String" 5.2.2. Header Object The Header Object and its contents are defined in section 4 of [JWS]. The Header Object for a signed vCon MUST include the alg and either the x5c or x5u arrays. The x5c or x5u requirement makes the management and use of vCons easier, allowing the certificate chain to be found as the vCon is moved. * alg: "String" The string value of alg is defined in section 4.1.1 of [JWS]. For a signed vCon this value SHOULD be "RS256" to maximize interoperability. * x5c: "String[]" (MUST provide x5c or x5u) The array of string values for x5c are defined in section 4.1.6 of [JWS]. * x5u: "String" (MUST provide x5c or x5u) The string value of x5u MUST contain an [HTTPS] URL as defined in section 4.1.5 of [JWS]. * uuid: "String" (SHOULD be provided) Petrie Expires 2 January 2027 [Page 45] Internet-Draft JSON vCon July 2026 The string value of the UUID for the vCon contained in the payload parameter. This is added for convenience to not require verification of the signed vCon to get it's UUID. When the vCon is verified, the value of this uuid parameter SHOULD be verified against the UUID in the signed vCon. 5.2.3. Long Term Archiving of Signed vCons In some use cases, it may be necessary to store or archive signed vCons for compliances or records purposes for as long as 10 years or more. In most cases the keys and certificates used to sign the vCon and construct the [JWS] or signed form of the vCon, will have an expiration on the order of a few years at best. Below is an approach on how integrity may be maintained on the archived vCon. There may be other approaches to this as well. For our example illustrated below, we have a vCon which was signed (labeled as JWS1). The certificate used to sign JWS1 has an expiration date. Before the expiration of the JWS1 signing certificate, the content of JWS1 (the vCon) is verified and then JWS1 is signed as the payload to construct JWS2. Before the expiration of the JWS2 certificate, the contents of JWS2 (JWS1) is verified and then JWS2 is signed as the payload to construct JWS3. The process is continued for the life of the vCon archiving. When it is desired to access the data in the archived vCon, first the outer JWS (JWS3 in diagram) is verified (payload of JWS2), then the vCon (payload in JWS1) is assumed to have valid integrity. ____________ | JWS3 | | __________ | || JWS2 || || ________ || ||| JWS1 ||| ||| ______ ||| |||| vCon |||| ||||______|||| |||________||| ||__________|| |____________| Petrie Expires 2 January 2027 [Page 46] Internet-Draft JSON vCon July 2026 5.3. Encrypted Form of vCon Object A vCon MUST be signed first using JWS as defined in Signed Form of vCon Object (Section 5.2), then encrypted using JWE as opposed to just encrypted with integrity protection. The rationale is that meta data and dialog will typically be collected in one security domain, then may be stored or exported to another. The signing is likely for the lifetime of the vCon, where the encryption may be shorter term or domain specific. vCons may be stored in unencrypted form, but the signed form MUST be maintained to ensure its integrity. A encrypted vCon uses [JWE] and takes the General JWE JSON Serialization Syntax form as defined in section 7.2.1 of [JWE]. * unprotected: "Unprotected" * recipients: "Recipient[]" * iv: "String" The string value of iv is the Initialization Vector as constructed as defined in section 7.2.1 of [JWE]. * ciphertext: "String" The string value of ciphertext is constructed as defined in section 7.2.1 of [JWE] using the signed form of the vCon as the plaintext input for encryption. * tag: "String" The string value of tag is the the Authentication Tag as defined in section 7.2.1 of [JWE]. 5.3.1. Unprotected Object * cty: "String" The string value of cty SHOULD be either "application/vcon" or "application/vcon+gzip" * enc: "String" The string value of enc SHOULD be "A256CBC-HS512" * uuid: "String" (SHOULD be provided) Petrie Expires 2 January 2027 [Page 47] Internet-Draft JSON vCon July 2026 The string value of the UUID for the vCon contained in the ciphertext parameter. This is provided for identification of the encrypted vCon without the need of the key to decrypt the vCon. The value of this uuid parameter SHOULD be verified when the vCon is decrypted. 5.3.2. Recipient Object * header: "Header" * encrypted_key: "String" The string value of encrypted_key is defined in section 7.2.1 of [JWE]. 5.3.3. Header Object * alg: "String" The string value of alg SHOULD be "RSA-OAEP". 5.4. Differentiation of unsigned, signed and encrypted forms of vCon vCons in the unsigned, signed and encrypted form are all valid JSON. It is necessary to distinguish which form a vCon is in order to properly handle it. For example a signed vCon needs to be verified. The following is the recommended approaches to identifying which form a particular vCon is in: * unsigned The presence of one or more of the following parameters indicates that the vCon is in the unsigned form: - parties - dialog - analysis - attachments * signed (JWS) The presence of both of the following parameters indicates that the vCon is in the signed (JWS) form: - payload Petrie Expires 2 January 2027 [Page 48] Internet-Draft JSON vCon July 2026 - signatures * encrypted (JWE) The presence of both of the following parameters indicates that the vCon is in the encrypted (JWE) form: - ciphertext - recipients 6. IANA Considerations This section includes the information required for IANA to register the application/vcon media type per [MEDIATYPE]. 6.1. JSON Format vCon Mediatype The JSON format for vCon is mandatory to implement. * Type name: application * Subtype name: vcon * Required parameters: N/A * Optional parameters: N/A; unrecognized parameters should be ignored. * Encoding considerations: 8bit * Additional information: [JSON] format * Security considerations: See Security Considerations section of this document. * Interoperability considerations: The vCon schema is defined in RFC XXXX. The schema may be extended through extensions as defined there. * Published specification: [VCON], this document: RFC XXXX * Applications that use this media type: * Fragment identifier considerations: N/A * Additional Information: Petrie Expires 2 January 2027 [Page 49] Internet-Draft JSON vCon July 2026 - Deprecated alias names for this type: N/A - Magic number(s): N/A - File extension(s): "vcon" - Macintosh file type code(s): N/A - Windows Clipboard Name: VCON * Author: See the Author's Addresses section of this document. * Change controller: IETF 6.2. gzip Format vCon Mediatype A gzip format vCon is a JSON format vCon that has been compressed using the gzip [GZIP] compression algorithm. The gzip format is used to reduce the size of potentially very large vCons containing audio or video media in dialog objects. Applications SHOULD support the receiving of gzip format vCons, but do not need to use the gzip format when sending. * Type name: application * Subtype name: vcon+gzip * Required parameters: N/A * Optional parameters: N/A; unrecognized parameters should be ignored. * Encoding considerations: binary * Additional information: [GZIP] compression of [JSON] format * Security considerations: See Security Considerations section of this document. * Interoperability considerations: The vCon schema is defined in RFC XXXX. The schema may be extended through extensions as defined there. * Published specification: [VCON], this document: RFC XXXX * Applications that use this media type: * Fragment identifier considerations: N/A Petrie Expires 2 January 2027 [Page 50] Internet-Draft JSON vCon July 2026 * Additional Information: - Deprecated alias names for this type: N/A - Magic number(s): N/A - File extension(s): "vcon" - Macintosh file type code(s): N/A - Windows Clipboard Name: VCON * Author: See the Author's Addresses section of this document. * Change controller: IETF 6.3. vCon JSON Registry This document defines a number of new IANA registries for the JSON vCon schema. Each Object (i.e. dict, map, dictionary) has its own registry of parameter names. All of those registries have the same registry template which is defined in the following subsection. When registering new entries, the following template should be used. 6.3.1. Object Registry Template Parameter Name: The string name of a parameter to be used within the Object. The name is case sensitive. Names may not match other registered names in a case-insensitive manner unless the Designated Experts state that there is a compelling reason to allow an exception. Parameter Description: Brief description of the parameter Change Controller: For Standards Track RFCs, list the "IESG". For others, give the name of the responsible party. Other details (e.g., postal address, email address, home page URI) may also be included. Specification Document(s): Petrie Expires 2 January 2027 [Page 51] Internet-Draft JSON vCon July 2026 Reference to the document or documents that specify the parameter, preferably including URIs that can be used to retrieve copies of the documents. An indication of the relevant sections may also be included but is not required. 6.3.2. vCon Object Parameter Names Registry The following defines the initial values for the vCon Object Parameter Names Registry. Use the template in Object Registry Template (Section 6.3.1) when registering additional entries to this table. +=============+======================+============+================+ | Parameter | Parameter | Change | Specification | | Name | Description | Controller | Document(s) | +=============+======================+============+================+ | vcon | Schema version | IESG | Section 4.1.1 | | | number | | RFC XXXX | +-------------+----------------------+------------+----------------+ | uuid | vCon instance UUID | IESG | Section 4.1.2 | | | | | RFC XXXX | +-------------+----------------------+------------+----------------+ | extensions | list of extensions | IESG | Section 4.1.3 | | | used | | RFC XXXX | +-------------+----------------------+------------+----------------+ | critical | list of incompatible | IESG | Section 4.1.4 | | | extensions used | | RFC XXXX | +-------------+----------------------+------------+----------------+ | created_at | creation date | IESG | Section 4.1.5 | | | | | RFC XXXX | +-------------+----------------------+------------+----------------+ | updated_at | modification date | IESG | Section 4.1.6 | | | | | RFC XXXX | +-------------+----------------------+------------+----------------+ | subject | conversation subject | IESG | Section 4.1.7 | | | | | RFC XXXX | +-------------+----------------------+------------+----------------+ | redacted | Redacted Object | IESG | Section 4.1.8 | | | | | RFC XXXX | +-------------+----------------------+------------+----------------+ | amended | Amended Object | IESG | Section 4.1.8 | | | | | RFC XXXX | +-------------+----------------------+------------+----------------+ | group | reserved for future | IESG | RFC XXXX | | | extension | | | +-------------+----------------------+------------+----------------+ | parties | Party Objects array | IESG | Section 4.1.10 | | | | | RFC XXXX | Petrie Expires 2 January 2027 [Page 52] Internet-Draft JSON vCon July 2026 +-------------+----------------------+------------+----------------+ | dialog | Dialog Objects array | IESG | Section 4.1.11 | | | | | RFC XXXX | +-------------+----------------------+------------+----------------+ | analysis | Analysis Objects | IESG | Section 4.1.12 | | | array | | RFC XXXX | +-------------+----------------------+------------+----------------+ | attachments | Attachment Objects | IESG | Section 4.1.13 | | | array | | RFC XXXX | +-------------+----------------------+------------+----------------+ Table 1 6.3.3. Party Object Parameter Names Registry The following defines the initial values for the Party Object Parameter Names Registry. Use the template in Object Registry Template (Section 6.3.1) when registering additional entries to this table. Petrie Expires 2 January 2027 [Page 53] Internet-Draft JSON vCon July 2026 +================+==============+============+================+ | Parameter Name | Parameter | Change | Specification | | | Description | Controller | Document(s) | +================+==============+============+================+ | tel | tel URL | IESG | Section 4.2.1 | | | | | RFC XXXX | +----------------+--------------+------------+----------------+ | sip | SIP URL | IESG | Section 4.2.1 | | | | | RFC XXXX | +----------------+--------------+------------+----------------+ | stir | STIR token | IESG | Section 4.2.3 | | | | | RFC XXXX | +----------------+--------------+------------+----------------+ | mailto | mailto URL | IESG | Section 4.2.4 | | | | | RFC XXXX | +----------------+--------------+------------+----------------+ | name | participant | IESG | Section 4.2.5 | | | name | | RFC XXXX | +----------------+--------------+------------+----------------+ | validation | validation | IESG | Section 4.2.7 | | | method | | RFC XXXX | +----------------+--------------+------------+----------------+ | gmlpos | participant | IESG | Section 4.2.8 | | | geolocation | | RFC XXXX | +----------------+--------------+------------+----------------+ | civicaddress | civic | IESG | Section 4.2.9 | | | address | | RFC XXXX | +----------------+--------------+------------+----------------+ | uuid | participant | IESG | Section 4.2.10 | | | UUID | | RFC XXXX | +----------------+--------------+------------+----------------+ | type | participant | IESG | Section 4.2.11 | | | type | | RFC XXXX | +----------------+--------------+------------+----------------+ | org | participant | IESG | Section 4.2.12 | | | organization | | RFC XXXX | +----------------+--------------+------------+----------------+ | dept | participant | IESG | Section 4.2.13 | | | department | | RFC XXXX | +----------------+--------------+------------+----------------+ Table 2 Petrie Expires 2 January 2027 [Page 54] Internet-Draft JSON vCon July 2026 6.3.4. Dialog Object Parameter Names Registry The following defines the initial values for the Dialog Object Parameter Names Registry. Use the template in Object Registry Template (Section 6.3.1) when registering additional entries to this table. +=================+=======================+==========+==============+ | Parameter Name | Parameter Description |Change |Specification | | | |Controller|Document(s) | +=================+=======================+==========+==============+ | type | dialog type name |IESG |Section 4.3.1 | | | | |RFC XXXX | +-----------------+-----------------------+----------+--------------+ | start | dialog start time |IESG |Section 4.3.2 | | | | |RFC XXXX | +-----------------+-----------------------+----------+--------------+ | duration | dialog duration |IESG |Section 4.3.3 | | | period | |RFC XXXX | +-----------------+-----------------------+----------+--------------+ | parties | dialog parties list |IESG |Section 4.3.4 | | | | |RFC XXXX | +-----------------+-----------------------+----------+--------------+ | originator | dialog originator |IESG |Section 4.3.5 | | | party | |RFC XXXX | +-----------------+-----------------------+----------+--------------+ | mediatype | dialog content media |IESG |Section 4.3.8 | | | type | |RFC XXXX | +-----------------+-----------------------+----------+--------------+ | filename | dialog content |IESG |Section 4.3.9 | | | filename | |RFC XXXX | +-----------------+-----------------------+----------+--------------+ | body | dialog inline content |IESG |Section | | | | |4.3.10 RFC | | | | |XXXX | +-----------------+-----------------------+----------+--------------+ | encoding | dialog inline content |IESG |Section | | | encoding | |4.3.10 RFC | | | | |XXXX | +-----------------+-----------------------+----------+--------------+ | url | dialog referenced |IESG |Section | | | content URL | |4.3.10 RFC | | | | |XXXX | +-----------------+-----------------------+----------+--------------+ | content_hash | dialog content hash |IESG |Section | | | | |4.3.10 RFC | | | | |XXXX | +-----------------+-----------------------+----------+--------------+ Petrie Expires 2 January 2027 [Page 55] Internet-Draft JSON vCon July 2026 | disposition | dialog disposition |IESG |Section | | | | |4.3.11 RFC | | | | |XXXX | +-----------------+-----------------------+----------+--------------+ | session_id | RFC7989 session ID |IESG |Section | | | | |4.3.12 RFC | | | | |XXXX | +-----------------+-----------------------+----------+--------------+ | party_history | dialog party events |IESG |Section | | | history | |4.3.13 RFC | | | | |XXXX | +-----------------+-----------------------+----------+--------------+ | transferee | transferee party |IESG |Section | | | index | |4.3.14 RFC | | | | |XXXX | +-----------------+-----------------------+----------+--------------+ | transferor | transferor party |IESG |Section | | | index | |4.3.14 RFC | | | | |XXXX | +-----------------+-----------------------+----------+--------------+ | transfer_target | transfer target party |IESG |Section | | | index | |4.3.14 RFC | | | | |XXXX | +-----------------+-----------------------+----------+--------------+ | original | original transfer |IESG |Section | | | dialog index | |4.3.14 RFC | | | | |XXXX | +-----------------+-----------------------+----------+--------------+ | consultation | consultation`transfer |IESG |Section | | | dialog index | |4.3.14 RFC | | | | |XXXX | +-----------------+-----------------------+----------+--------------+ | target_dialog | target_dialog |IESG |Section | | | transfer dialog index | |4.3.14 RFC | | | | |XXXX | +-----------------+-----------------------+----------+--------------+ | application | dialog source |IESG |Section | | | application | |4.3.15 RFC | | | | |XXXX | +-----------------+-----------------------+----------+--------------+ | message_id | dialog message id |IESG |Section | | | | |4.3.16 RFC | | | | |XXXX | +-----------------+-----------------------+----------+--------------+ | recordings | multi recording |IESG |Section 4.3.6 | | | dialog reference | |RFC XXXX | +-----------------+-----------------------+----------+--------------+ | recording_set | recording_set dialog |IESG |Section 4.3.7 | Petrie Expires 2 January 2027 [Page 56] Internet-Draft JSON vCon July 2026 | | reference | |RFC XXXX | +-----------------+-----------------------+----------+--------------+ Table 3 6.3.4.1. Dialog Type Name Registry This document defines a new registry for the token name values that are permitted as values to the dialog type (Section 4.3.1) parameter. 6.3.4.1.1. Dialog Type Name Registration Template Dialog Type Name: The string token name of a Dialog Object Type The name is case sensitive. Names may not match other registered names in a case- insensitive manner unless the Designated Experts state that there is a compelling reason to allow an exception. Dialog Type Description: Brief description of the Dialog Object type Change Controller: For Standards Track RFCs, list the "IESG". For others, give the name of the responsible party. Other details (e.g., postal address, email address, home page URI) may also be included. Specification Document(s): Reference to the document or documents that specify the parameter, preferably including URIs that can be used to retrieve copies of the documents. An indication of the relevant sections may also be included but is not required. 6.3.4.1.2. Dialog Type Name Registration Initial Values The following table defines the initial values for the Dialog Object Types Registry. Petrie Expires 2 January 2027 [Page 57] Internet-Draft JSON vCon July 2026 +==================+=================+============+===============+ | Dialog Type Name | Dialog Type | Change | Specification | | | Description | Controller | Document(s) | +==================+=================+============+===============+ | text | text dialog | IESG | Section 4.3.1 | | | | | RFC XXXX | +------------------+-----------------+------------+---------------+ | recording | recording | IESG | Section 4.3.1 | | | dialog | | RFC XXXX | +------------------+-----------------+------------+---------------+ | transfer | transfer dialog | IESG | Section 4.3.1 | | | | | RFC XXXX | +------------------+-----------------+------------+---------------+ | incomplete | incomplete | IESG | Section 4.3.1 | | | dialog | | RFC XXXX | +------------------+-----------------+------------+---------------+ | recording-set | multi-recording | IESG | Section 4.3.1 | | | dialog | | RFC XXXX | +------------------+-----------------+------------+---------------+ Table 4 6.3.5. party_history Object Parameter Names Registry This initial values for the party_history Object Parameter Names Registry are listed in the following table. Use the template in Object Registry Template (Section 6.3.1) when registering additional entries to this table. +================+=============+============+==================+ | Parameter Name | Parameter | Change | Specification | | | Description | Controller | Document(s) | +================+=============+============+==================+ | party | event party | IESG | Section 4.3.13.1 | | | index | | RFC XXXX | +----------------+-------------+------------+------------------+ | time | time event | IESG | Section 4.3.13.1 | | | occurred | | RFC XXXX | +----------------+-------------+------------+------------------+ | event | event type | IESG | Section 4.3.13.1 | | | | | RFC XXXX | +----------------+-------------+------------+------------------+ Table 5 Petrie Expires 2 January 2027 [Page 58] Internet-Draft JSON vCon July 2026 6.3.5.1. party_event Event Name Registry This document defines a new registry for the token name values that are permitted as values to the party_event Object event (Section 4.3.13.1) parameter. 6.3.5.1.1. party_event Event Name Registration Template party_event Event Name: The string token name of a party_event Object event type. The name is case sensitive. Names may not match other registered names in a case-insensitive manner unless the Designated Experts state that there is a compelling reason to allow an exception. party_event Event Description: Brief description of the party_event Object Event Change Controller: For Standards Track RFCs, list the "IESG". For others, give the name of the responsible party. Other details (e.g., postal address, email address, home page URI) may also be included. Specification Document(s): Reference to the document or documents that specify the parameter, preferably including URIs that can be used to retrieve copies of the documents. An indication of the relevant sections may also be included but is not required. 6.3.5.1.2. party_event Type Name Registration Initial Values The following table defines the initial values for the Dialog Object Types Registry. Petrie Expires 2 January 2027 [Page 59] Internet-Draft JSON vCon July 2026 +=============+=====================+============+==================+ | party_event | party_event Event | Change | Specification | | Event Name | Description | Controller | Document(s) | +=============+=====================+============+==================+ | join | party join event | IESG | Section 4.3.13.1 | | | | | RFC XXXX | +-------------+---------------------+------------+------------------+ | drop | party drop event | IESG | Section 4.3.13.1 | | | | | RFC XXXX | +-------------+---------------------+------------+------------------+ | hold | party on hold | IESG | Section 4.3.13.1 | | | event | | RFC XXXX | +-------------+---------------------+------------+------------------+ | unhold | party off hold | IESG | Section 4.3.13.1 | | | event | | RFC XXXX | +-------------+---------------------+------------+------------------+ | mute | party on mute | IESG | Section 4.3.13.1 | | | event | | RFC XXXX | +-------------+---------------------+------------+------------------+ | unmute | party off mute | IESG | Section 4.3.13.1 | | | event | | RFC XXXX | +-------------+---------------------+------------+------------------+ | keydown | DTMF/app key/ | IESG | Section 4.3.13.1 | | | button press event | | RFC XXXX | +-------------+---------------------+------------+------------------+ | keyup | DTMF/app key/ | IESG | Section 4.3.13.1 | | | button release | | RFC XXXX | | | event | | | +-------------+---------------------+------------+------------------+ Table 6 6.3.6. Attachment Object Parameter Names Registry The following defines the initial values for the Attachment Object Parameter Names Registry. Use the template in Object Registry Template (Section 6.3.1) when registering additional entries to this table. Petrie Expires 2 January 2027 [Page 60] Internet-Draft JSON vCon July 2026 +==============+=======================+============+===============+ | Parameter | Parameter | Change | Specification | | Name | Description | Controller | Document(s) | +==============+=======================+============+===============+ | purpose | attachment object | IESG | Section 4.4.1 | | | purpose description | | RFC XXXX | +--------------+-----------------------+------------+---------------+ | start | attachment start | IESG | Section 4.4.2 | | | time | | RFC XXXX | +--------------+-----------------------+------------+---------------+ | party | sending party index | IESG | Section 4.4.3 | | | | | RFC XXXX | +--------------+-----------------------+------------+---------------+ | dialog | associated dialog | IESG | Section 4.4.4 | | | index | | RFC XXXX | +--------------+-----------------------+------------+---------------+ | mediatype | attachment body | IESG | Section 4.4.5 | | | media type | | RFC XXXX | +--------------+-----------------------+------------+---------------+ | filename | attachment content | IESG | Section 4.4.6 | | | filename | | RFC XXXX | +--------------+-----------------------+------------+---------------+ | body | attachment inline | IESG | Section 4.4.7 | | | content | | RFC XXXX | +--------------+-----------------------+------------+---------------+ | encoding | attachment inline | IESG | Section 4.4.7 | | | content encoding | | RFC XXXX | +--------------+-----------------------+------------+---------------+ | url | attachment | IESG | Section 4.4.7 | | | referenced content | | RFC XXXX | | | URL | | | +--------------+-----------------------+------------+---------------+ | content_hash | attachment content | IESG | Section 4.4.7 | | | hash | | RFC XXXX | +--------------+-----------------------+------------+---------------+ Table 7 6.3.7. Analysis Object Parameter Names Registry The following defines the initial values for the Analysis Object Parameter Names Registry. Use the template in Object Registry Template (Section 6.3.1) when registering additional entries to this table. Petrie Expires 2 January 2027 [Page 61] Internet-Draft JSON vCon July 2026 +================+=====================+============+===============+ | Parameter | Parameter | Change | Specification | | Name | Description | Controller | Document(s) | +================+=====================+============+===============+ | type | analysis type | IESG | Section 4.5.1 | | | | | RFC XXXX | +----------------+---------------------+------------+---------------+ | dialog | associated dialog | IESG | Section 4.5.2 | | | index | | RFC XXXX | +----------------+---------------------+------------+---------------+ | attachment | associated | IESG | Section 4.5.3 | | | attachment index | | RFC XXXX | +----------------+---------------------+------------+---------------+ | mediatype | analysis body media | IESG | Section 4.5.4 | | | type | | RFC XXXX | +----------------+---------------------+------------+---------------+ | filename | analysis content | IESG | Section 4.5.5 | | | filename | | RFC XXXX | +----------------+---------------------+------------+---------------+ | vendor | vendor producing | IESG | Section 4.5.6 | | | content | | RFC XXXX | +----------------+---------------------+------------+---------------+ | product | vendor product | IESG | Section 4.5.7 | | | producing content | | RFC XXXX | +----------------+---------------------+------------+---------------+ | schema | product schema of | IESG | Section 4.5.8 | | | content | | RFC XXXX | +----------------+---------------------+------------+---------------+ | body | analysis inline | IESG | Section 4.5.9 | | | content | | RFC XXXX | +----------------+---------------------+------------+---------------+ | encoding | analysis inline | IESG | Section 4.5.9 | | | content encoding | | RFC XXXX | +----------------+---------------------+------------+---------------+ | url | analysis referenced | IESG | Section 4.5.9 | | | content URL | | RFC XXXX | +----------------+---------------------+------------+---------------+ | content_hash | analysis content | IESG | Section 4.5.9 | | | hash | | RFC XXXX | +----------------+---------------------+------------+---------------+ Table 8 Petrie Expires 2 January 2027 [Page 62] Internet-Draft JSON vCon July 2026 6.3.8. Redacted Object Parameter Names Registry The following defines the initial values for the Redacted Object Parameter Names Registry. Use the template in Object Registry Template (Section 6.3.1) when registering additional entries to this table. +================+===================+============+=================+ | Parameter | Parameter | Change | Specification | | Name | Description | Controller | Document(s) | +================+===================+============+=================+ | uuid | less redacted | IESG | Section 4.1.8.1 | | | vCon UUID | | RFC XXXX | +----------------+-------------------+------------+-----------------+ | type | redaction type or | IESG | Section 4.1.8.1 | | | reason | | RFC XXXX | +----------------+-------------------+------------+-----------------+ | url | referenced less | IESG | Section 4.1.8.1 | | | redacted vCon URL | | RFC XXXX | +----------------+-------------------+------------+-----------------+ | content_hash | less redacted | IESG | Section 4.1.8.1 | | | vCon hash | | RFC XXXX | +----------------+-------------------+------------+-----------------+ Table 9 6.3.9. Amended Object Parameter Names Registry The following defines the initial values for the Amended Object Parameter Names Registry. Use the template in Object Registry Template (Section 6.3.1) when registering additional entries to this table. +================+==================+============+=================+ | Parameter Name | Parameter | Change | Specification | | | Description | Controller | Document(s) | +================+==================+============+=================+ | uuid | prior vCon | IESG | Section 4.1.9.1 | | | version UUID | | RFC XXXX | +----------------+------------------+------------+-----------------+ | url | referenced prior | IESG | Section 4.1.9.1 | | | version vCon URL | | RFC XXXX | +----------------+------------------+------------+-----------------+ | content_hash | prior version | IESG | Section 4.1.9.1 | | | vCon hash | | RFC XXXX | +----------------+------------------+------------+-----------------+ Table 10 Petrie Expires 2 January 2027 [Page 63] Internet-Draft JSON vCon July 2026 6.4. vCon Extensions Names Registry This document defines and new registry for the token name values that are permitted as values to the [extensions]s(#extensions) parameter. However it does not define any values for this registry. Values for this registry are to be defined in subsequent documents which define extensions to the vCon schema. 6.4.1. Extensions Registration Template Extension Name: The string token name of an extension to the vCon JSON schema. The name is case sensitive. Names may not match other registered names in a case-insensitive manner unless the Designated Experts state that there is a compelling reason to allow an exception. Extension Description: Brief description of the the vCon extension Change Controller: For Standards Track RFCs, list the "IESG". For others, give the name of the responsible party. Other details (e.g., postal address, email address, home page URI) may also be included. Specification Document(s): Reference to the document or documents that specify the parameter, preferably including URIs that can be used to retrieve copies of the documents. An indication of the relevant sections may also be included but is not required. 6.5. JSON Web Signature and Encryption Header Parameters This document registers the following new parameter in the [JWS] JSON Web Signature and Encryption Header Parameters registry. * Header Parameter Name: "uuid" * Header Parameter Description: UUID of the signed object * Header Parameter Usage Location(s): JWS, JWE * Change Controller: IESG Petrie Expires 2 January 2027 [Page 64] Internet-Draft JSON vCon July 2026 * Specification Document(s): Header Object (Section 5.2.2), Header Object (Section 5.3.1) of RFC XXXX 7. Non-Upward Compatible Changes to the vCon Container 7.1. Version 0.3.0 to 0.4.0 * The "appended" Object was renamed to "amended" * The "must_support" parameter was renamed to "critical" to be consistent with other IETF JSON schema extension mechanisms. * The "session_id" Dialog Object parameter was changes from a String to a SessionId Object. 7.2. Version 0.0.2 to 0.3.0 * "transfer-target" parameter was renamed to "transfer_target" to be consistent with other compound names that use the underscore ("_"). * "target-dialog" parameter was renamed to "target_dialog" to be consistent with other compound names that use the underscore ("_"). 7.3. Version 0.0.1 to 0.0.2 * "mimetype" parameters were renamed to "mediatype" * "alg" and "signature" were combined into "content_hash" 8. References 8.1. Normative References [DID] W3C, "Decentralized Identifiers (DIDs) v1.0", July 2022, . [GEOPRIV] Peterson, J., "A Presence-based GEOPRIV Location Object Format", RFC 4119, DOI 10.17487/RFC4119, December 2005, . [GZIP] Deutsch, P., "GZIP file format specification version 4.3", RFC 1952, DOI 10.17487/RFC1952, May 1996, . Petrie Expires 2 January 2027 [Page 65] Internet-Draft JSON vCon July 2026 [H-460-27] "End-to-End Session Identifier for H.323 Systems", H.460.27, November 2015, . [HTTPS] Fielding, R., Ed., Nottingham, M., Ed., and J. Reschke, Ed., "HTTP Semantics", STD 97, RFC 9110, DOI 10.17487/RFC9110, June 2022, . [IANA-COSE-ALG] "COSE Algorithms", n.d., <>. [JMAP] Jenkins, N. and C. Newman, "The JSON Meta Application Protocol (JMAP)", RFC 8620, DOI 10.17487/RFC8620, July 2019, . [JSON] Bray, T., Ed., "The JavaScript Object Notation (JSON) Data Interchange Format", STD 90, RFC 8259, DOI 10.17487/RFC8259, December 2017, . [JWE] Jones, M. and J. Hildebrand, "JSON Web Encryption (JWE)", RFC 7516, DOI 10.17487/RFC7516, May 2015, . [JWK] Jones, M., "JSON Web Key (JWK)", RFC 7517, DOI 10.17487/RFC7517, May 2015, . [JWS] Jones, M., Bradley, J., and N. Sakimura, "JSON Web Signature (JWS)", RFC 7515, DOI 10.17487/RFC7515, May 2015, . [MAILTO] Duerst, M., Masinter, L., and J. Zawinski, "The 'mailto' URI Scheme", RFC 6068, DOI 10.17487/RFC6068, October 2010, . [MEDIATYPE] Freed, N., Klensin, J., and T. Hansen, "Media Type Specifications and Registration Procedures", BCP 13, RFC 6838, DOI 10.17487/RFC6838, January 2013, . [MIME] Freed, N. and N. Borenstein, "Multipurpose Internet Mail Extensions (MIME) Part One: Format of Internet Message Bodies", RFC 2045, DOI 10.17487/RFC2045, November 1996, . Petrie Expires 2 January 2027 [Page 66] Internet-Draft JSON vCon July 2026 [PASSporT] Wendt, C. and J. Peterson, "PASSporT: Personal Assertion Token", RFC 8225, DOI 10.17487/RFC8225, February 2018, . [PIDF-LO] Winterbottom, J., Thomson, M., and H. Tschofenig, "GEOPRIV Presence Information Data Format Location Object (PIDF-LO) Usage Clarification, Considerations, and Recommendations", RFC 5491, DOI 10.17487/RFC5491, March 2009, . [RFC2119] Bradner, S., "Key words for use in RFCs to Indicate Requirement Levels", BCP 14, RFC 2119, DOI 10.17487/RFC2119, March 1997, . [RFC3339] Klyne, G. and C. Newman, "Date and Time on the Internet: Timestamps", RFC 3339, DOI 10.17487/RFC3339, July 2002, . [RFC8174] Leiba, B., "Ambiguity of Uppercase vs Lowercase in RFC 2119 Key Words", BCP 14, RFC 8174, DOI 10.17487/RFC8174, May 2017, . [SESSION-ID] Jones, P., Salgueiro, G., Pearce, C., and P. Giralt, "End- to-End Session Identification in IP-Based Multimedia Communication Networks", RFC 7989, DOI 10.17487/RFC7989, October 2016, . [SMTP] Klensin, J., "Simple Mail Transfer Protocol", RFC 5321, DOI 10.17487/RFC5321, October 2008, . [TEL] Schulzrinne, H., "The tel URI for Telephone Numbers", RFC 3966, DOI 10.17487/RFC3966, December 2004, . [UUID] Peabody, B. and K. R. Davis, "New UUID Formats", Work in Progress, Internet-Draft, draft-peabody-dispatch-new-uuid- format-04, 23 June 2022, . 8.2. Informative References Petrie Expires 2 January 2027 [Page 67] Internet-Draft JSON vCon July 2026 [CBOR] Bormann, C. and P. Hoffman, "Concise Binary Object Representation (CBOR)", STD 94, RFC 8949, DOI 10.17487/RFC8949, December 2020, . [CDDL] Birkholz, H., Vigano, C., and C. Bormann, "Concise Data Definition Language (CDDL): A Notational Convention to Express Concise Binary Object Representation (CBOR) and JSON Data Structures", RFC 8610, DOI 10.17487/RFC8610, June 2019, . [CDR] ITU, "Recommendation Q.825: Specification of TMN applications at the Q3 interface: Call detail recording", n.d., . [ISOBMFF] "Information technology -- Coding of audio-visual objects -- Part 12: ISO base media file format", ISO/IEC 14496-12:2022, January 2022, . [JWT] Jones, M., Bradley, J., and N. Sakimura, "JSON Web Token (JWT)", RFC 7519, DOI 10.17487/RFC7519, May 2015, . [PY-VCON] "Python open source vCon command line interface, library and workflow server", n.d., . [SHA-512] Eastlake 3rd, D. and T. Hansen, "US Secure Hash Algorithms (SHA and SHA-based HMAC and HKDF)", RFC 6234, DOI 10.17487/RFC6234, May 2011, . [SIP] Rosenberg, J., Schulzrinne, H., Camarillo, G., Johnston, A., Peterson, J., Sparks, R., Handley, M., and E. Schooler, "SIP: Session Initiation Protocol", RFC 3261, DOI 10.17487/RFC3261, July 2002, . [SIP-XFER] Sparks, R., Johnston, A., Ed., and D. Petrie, "Session Initiation Protocol (SIP) Call Control - Transfer", BCP 149, RFC 5589, DOI 10.17487/RFC5589, June 2009, . Petrie Expires 2 January 2027 [Page 68] Internet-Draft JSON vCon July 2026 [STIR-PASS] Wendt, C. and J. Peterson, "PASSporT Extension for Rich Call Data", Work in Progress, Internet-Draft, draft-ietf- stir-passport-rcd-26, 5 June 2023, . [vCard] Kewisch, P., "jCard: The JSON Format for vCard", RFC 7095, DOI 10.17487/RFC7095, January 2014, . [vCon-white-paper] Howe, T., Petrie, D., Lieberman, M., and A. Quayle, "vCon: an Open Standard for Conversation Data", n.d., . Appendix A. Example vCons This appendix contains example vCons in the unsigned, signed and encrypted form. The JSON has been indented for readability. The vCons have been formatted such that long text lines have been wrapped with a left hand white space indent for readability purposes. Links for unformatted versions of the vCons are provided for each of the examples. The example vCons in this document were generated using the [PY-VCON] command line interface. A.1. Two Party Call vCon With Inline Recording This example vCon is for a simple 2 party PSTN call. It has a single Dialog Object which contains a single channel wav format recording with the two parties audio mixed into the single channel. The unformatted version of the following example can be downloaded from: https://raw.githubusercontent.com/ietf-wg-vcon/draft-ietf-vcon- vcon-core/refs/heads/main/examples/ab_call_int_rec.vcon { "parties": [ { "tel": "+12345678901", "name": "Alice" }, { "tel": "+19876543210", "name": "Bob" } ], Petrie Expires 2 January 2027 [Page 69] Internet-Draft JSON vCon July 2026 "dialog": [ { "type": "recording", "start": "2022-06-21T17:53:26.000+00:00", "duration": 4.72, "parties": [ 0, 1 ], "mediatype": "audio/x-wav", "filename": "ab_call.wav", "encoding": "base64url", "body": "UklGRioeAABXQVZFZm10IBQAAAAxAAEAQB8AAFkGAABBAAAAAg BAAWZhY3QEAAAAgJMAAGRhdGH2HQAAoxjXHYXCRekuye4gK4Tsiv4wZeN htuvu3RMkgyPXme4NeahQLG0yeLayx5HCIiRWK7psbQrQTFm57NwQJvIb q1aNxk6VpMYAXSm5Bb1rgStIStvEzmCaOIabxs2gjReJ02Rk0BQtOxHkh UTIZd4VGKoq1KuoCGhrZTx1vRZICuZEcgkGjdH2jiCU1a0NMW6BE8lVHN -OYFPHcZspr0CSl1aeo2hOWUx3CbovpGqKsApWteunk8gMPMOdynRVFWR 5o0l2BvaQDcWugGRHrQa9NcEbG1LWQq_AWLpsXKdMQefGrZu4ZE2ZSDIR 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kOLGwR4faduDnqHCOE2_ZLbx6rq35oJe0p26lepuXOWTt7Ie_DmLNi4ID SZom4YzSEtD47tmVUra4GERBpUJACE0Uua5njuKvpK2ddy599W22r4k_U 2rbBguUz2dY6tWrvTZuZr9sdZE7-olvZu1lUrIGj9QIfauaCtaeXRZr4k fW5Hlxb0fr3U2lWqt6sOSaYEyZJEIdkWdSu89fZvqdnrVNRmum_xp2jTn h2ISAYJiKwN0oNFtnSyD5Eiyw3dPBAY5diql0b9ecXVDBo2Rs63nWNr6t fuyXTmu8nIabShdNojSNGobq52IxMKBgybmG60GIeX0pUNWh0AA9KxbRY yBJnluZH2Jc4hI2iigbuXGkTgINqqeKLVUDKTR2dQt6gpWMhzXTRd4B2B ULCDiSHXDgy8AnTuMqiROgCsJsYs4tGAjt1WcVdE2SATnCLSKbNhtyAJQ ciPHaL0Eyo0bWcX0DiZu29hwFntXxIIy4KuVckrtDCD4tGYSHctAFDmNz Petrie Expires 2 January 2027 [Page 73] Internet-Draft JSON vCon July 2026 VbPQCvDauJGqTgafrcINDGcNGnZR7Zt3PoALxSCUqY0wbyrSHmTIZc" } ], "analysis": [], "attachments": [], "uuid": "019f155a-5131-80ec-b9a2-279e0d16bc46" } A.2. Email Thread Multipart vCon The following is an unsigned form of an vCon for a 2 message email thread between 2 parties. The email messages are multipart MIME message bodies. The unformatted version of the following example can be downloaded from: https://raw.githubusercontent.com/ietf-wg-vcon/draft-ietf-vcon- vcon-core/refs/heads/main/examples/ab_email_acct_prob_thread.vcon { "group": [], "parties": [ { "mailto": "b@example.com", "name": "Bob" }, { "mailto": "a@example.com", "name": "Alice" } ], "dialog": [ { "type": "text", "start": "2022-09-23T21:44:25.000+00:00", "duration": 0, "parties": [ 0, 1 ], "mediatype": "multipart/mixed; \n\tboundary=\"----=_Part_38 8314_1108189513.1663969465698\"", "encoding": "none", "body": "------=_Part_388314_1108189513.1663969465698\r\nCo ntent-Type: multipart/alternative;\r\n\tboundary=\"----=_ Part_388313_805631480.1663969465697\"\r\n\r\n------=_Part _388313_805631480.1663969465697\r\nContent-Type: text/pla in; charset=UTF-8\r\nContent-Transfer-Encoding: 7bit\r\n\ r\nAlice:Please find the image attached.\r\n\r\nRegards,B Petrie Expires 2 January 2027 [Page 74] Internet-Draft JSON vCon July 2026 ob\r\n\r\n------=_Part_388313_805631480.1663969465697\r\n Content-Type: text/html; charset=UTF-8\r\nContent-Transfe r-Encoding: 7bit\r\n\r\n
Alice:
Please find the image attached.

Regards,
Bob

\r\n--- ---=_Part_388313_805631480.1663969465697--\r\n\r\n------= _Part_388314_1108189513.1663969465698\r\nContent-Type: im age/png\r\nContent-Transfer-Encoding: base64\r\nContent-D isposition: attachment; filename=\"=?UTF-8?b?c2NyZWVuc2hv dC5wbmc=?=\"\r\nContent-ID: \r\n\r\niVBORw0KGgoAAAANSUhEUgAAACYAAA AeCAIAAADPdvs5AAAAA3NCSVQICAjb4U/gAAAAGXRFWHRT\r\nb2Z0d2F yZQBnbm9tZS1zY3JlZW5zaG907wO/PgAAALpJREFUSInl1t0NgzAMBOC7 qPvP1gW6Qjdo\r\nj4f0J4qAJI6NROvniE8+mwCvtzv6imTnyf1K/UclH UFWjIvaIL3CHCABSPKKtJckWfY6zw+sj5dq\r\nISdVIzmj2klzTZG2Rm e7NKgOwY6qPrMcUs+2PqchL14P+oyz+fHx77K5Sv8xyxAyZ0uBaxn/Spc U\r\n8NxcosAut1Y3NtjVX7UjZlmpgWTSFyvVQPKB16tSqW53bFnKtyyZ vYT3rSsAWADWAlOjseYFfwAA\r\nAABJRU5ErkJggg==\r\n\r\n----- -=_Part_388314_1108189513.1663969465698--\r\n", "message_id": "<1126698042.388315.1663969465698@mail.yahoo. com>" }, { "type": "text", "start": "2022-09-23T21:44:59.000+00:00", "duration": 0, "parties": [ 1, 0 ], "mediatype": "multipart/alternative; \n\tboundary=\"----=_P art_390234_811845464.1663969499935\"", "encoding": "none", "body": "------=_Part_390234_811845464.1663969499935\r\nCon tent-Type: text/plain; charset=UTF-8\r\nContent-Transfer- Petrie Expires 2 January 2027 [Page 75] Internet-Draft JSON vCon July 2026 Encoding: 7bit\r\n\r\n Hi Bob:Got it. Thanks.\r\n\r\n On Friday, September 23, 2022, 9:44:40 PM UTC, Bob wrote: \r\n \r\n Alice:Please find the image a ttached.\r\n\r\nRegards,Bob\r\n \r\n------=_Part_390234_ 811845464.1663969499935\r\nContent-Type: text/html; chars et=UTF-8\r\nContent-Transfer-Encoding: 7bit\r\n\r\n
\r\n
Hi B ob:
Go t it. Thanks.


\r\n \r\n
\r\n
\r\n \r\n
\r\n On Friday, September 23, 2022, 9:44:40 PM UTC, Bo b <b@example.com> wrote:\r\n
\ r\n

\r\n
\r\n
Alice:
Please find the image attached.
< /div>

Regards,
Bob< /div>

\r\n
\r\n
\r\n------=_Par t_390234_811845464.1663969499935--\r\n", "message_id": "<2031327240.390235.1663969499936@mail.yahoo. com>" } ], "analysis": [], "attachments": [], "created_at": "2026-06-29T23:03:01.095+00:00", "redacted": {}, "subject": "Account problem", "uuid": "019f159f-2cfb-8d95-b9a2-279e0d16bc46" Petrie Expires 2 January 2027 [Page 76] Internet-Draft JSON vCon July 2026 } A.3. Email Thread Text vCon The following is an unsigned form of an vCon for a 3 message email thread between 2 parties. The email messages are plain text message bodies. The unformatted version of the following example can be downloaded from: https://raw.githubusercontent.com/ietf-wg-vcon/draft-ietf-vcon- vcon-core/refs/heads/main/examples/ ab_email_prob_followup_text_thread.vcon { "group": [], "parties": [ { "mailto": "a@example.com", "name": "Alice" }, { "mailto": "b@example.com", "name": "Bob" } ], "dialog": [ { "type": "text", "start": "2022-09-23T23:24:59.000+00:00", "duration": 0, "parties": [ 0, 1 ], "mediatype": "text/plain", "encoding": "none", "body": "Hi Bob:\nI just wanted to follow up to see that yo ur account is ok now.\n\nRegards,\nAlice\n\n", "message_id": "<2031327240.390235.1663969499936@mail.yahoo. com>" }, { "type": "text", "start": "2022-09-23T23:34:32.000+00:00", "duration": 0, "parties": [ 1, 0 Petrie Expires 2 January 2027 [Page 77] Internet-Draft JSON vCon July 2026 ], "mediatype": "text/plain; charset=UTF-8", "encoding": "none", "body": "Hi Alice:\nAll is fine. Thanks.\n\n On Friday, September 23, 2022, 23:24:59 PM UTC, Alice wrote: \n \n Hi Bob:\n I just wanted to follow up to see that your account is ok now.\n \n Regards,\n Alic e\n", "message_id": "<1126698042.388315.1663969465698@mail.yahoo. com>" }, { "type": "text", "start": "2022-09-23T23:38:12.000+00:00", "duration": 0, "parties": [ 0, 1 ], "mediatype": "text/plain", "encoding": "none", "body": "Awesome!\n\n On Friday, September 23, 2022, 23: 34: PM UTC, Bob wrote: \n\n Hi Alice:\n All is fine. Thanks.\n \n On Friday, September 23 , 2022, 23:24:59 PM UTC, Alice wrote: \n \n Hi Bob:\n I just wanted to follow up to see t hat your account is ok now.\n \n Regards,\n Alic e\n", "message_id": "<2031327240.390235.1663969499936@mail.yahoo. com>" } ], "analysis": [], "attachments": [], "created_at": "2026-06-29T23:11:16.017+00:00", "redacted": {}, "subject": "Account issue followup", "uuid": "019f15a6-ba37-8ed3-b9a2-279e0d16bc46" } A.4. Two Party Call vCon With Externally Referenced Recording This example vCon is for a simple 2 party PSTN call. It has a single Dialog Object which reference a single channel wav format recording with the two parties audio mixed into the single channel. Petrie Expires 2 January 2027 [Page 78] Internet-Draft JSON vCon July 2026 The unformatted version of the following example can be downloaded from: https://raw.githubusercontent.com/ietf-wg-vcon/draft-ietf-vcon- vcon-core/refs/heads/main/examples/ab_call_ext_rec.vcon { "parties": [ { "tel": "+12345678901", "name": "Alice" }, { "tel": "+19876543210", "name": "Bob" } ], "dialog": [ { "type": "recording", "start": "2022-06-21T17:53:26.000+00:00", "duration": 33.12, "parties": [ 0, 1 ], "url": "https://github.com/ietf-wg-vcon/draft-ietf-vcon-vco n-core/raw/refs/heads/main/examples/ab_call.mp3", "mediatype": "audio/x-mp3", "filename": "ab_call.mp3", "content_hash": "sha512-GLy6IPaIUM1GqzZqfIPZlWjaDsNgNvZM0iC ONNThnH0a75fhUM6cYzLZ5GynSURREvZwmOh54-2lRRieyj82UQ" } ], "analysis": [], "attachments": [], "uuid": "019f15a6-a752-826f-b9a2-279e0d16bc46" } A.5. Two Party Call vCon with Analysis TODO: fix diarization in transcript The unformatted version of the following example can be downloaded from: https://raw.githubusercontent.com/ietf-wg-vcon/draft-ietf-vcon- vcon-core/refs/heads/main/examples/ab_call_ext_rec_analysis.vcon Petrie Expires 2 January 2027 [Page 79] Internet-Draft JSON vCon July 2026 { "parties": [ { "tel": "+12345678901", "name": "Alice" }, { "tel": "+19876543210", "name": "Bob" } ], "dialog": [ { "type": "recording", "start": "2022-06-21T17:53:26.000+00:00", "duration": 33.12, "parties": [ 0, 1 ], "url": "https://github.com/ietf-wg-vcon/draft-ietf-vcon-vco n-core/raw/refs/heads/main/examples/ab_call.mp3", "mediatype": "audio/x-mp3", "filename": "ab_call.mp3", "content_hash": "sha512-GLy6IPaIUM1GqzZqfIPZlWjaDsNgNvZM0iC ONNThnH0a75fhUM6cYzLZ5GynSURREvZwmOh54-2lRRieyj82UQ" } ], "analysis": [ { "type": "transcript", "dialog": 0, "body": { "metadata": { "transaction_key": "deprecated", "request_id": "019f15a6-c5e6-7d72-a534-e0243ea2c868", "sha256": "04dc074100461f5082f2a7a286d0161f0e2728025e83 c20592aa7ea3724c2933", "created": "2026-06-29T23:11:19.157Z", "duration": 33.119938, "channels": 1, "models": [ "2187e11a-3532-4498-b076-81fa530bdd49" ], "model_info": { "2187e11a-3532-4498-b076-81fa530bdd49": { "name": "general-nova-3", "version": "2025-07-31.0", Petrie Expires 2 January 2027 [Page 80] Internet-Draft JSON vCon July 2026 "arch": "nova-3" } } }, "results": { "channels": [ { "alternatives": [ { "transcript": "Hello. This is example.com. My n ame is Bob. How can I help you? Hi. I'd like to add Fu to my service. Okay. Can you give m e your name and phone number so I can look up your account? My name is Alice, and my numbe r is 1234567890. Thank you. Okay. I've added two to your service. Is there anything else t hat I can help you with? No. Thank you. Goodb ye. Goodbye. Have a nice day.", "confidence": 1, "words": [ { "word": "hello", "start": 1.1999999, "end": 1.76, "confidence": 0.9946289, "speaker": 0, "speaker_confidence": 0.13952476, "punctuated_word": "Hello." }, { "word": "this", "start": 1.76, "end": 2.24, "confidence": 1, "speaker": 0, "speaker_confidence": 0.13952476, "punctuated_word": "This" }, { "word": "is", "start": 2.24, "end": 2.3999999, "confidence": 0.9970703, "speaker": 0, "speaker_confidence": 0.13952476, "punctuated_word": "is" }, { Petrie Expires 2 January 2027 [Page 81] Internet-Draft JSON vCon July 2026 "word": "example.com", "start": 2.3999999, "end": 3.4399998, "confidence": 0.90738934, "speaker": 0, "speaker_confidence": 0.13952476, "punctuated_word": "example.com." }, { "word": "my", "start": 3.4399998, "end": 3.6, "confidence": 1, "speaker": 0, "speaker_confidence": 0.51462495, "punctuated_word": "My" }, { "word": "name", "start": 3.6, "end": 3.6799998, "confidence": 1, "speaker": 0, "speaker_confidence": 0.51462495, "punctuated_word": "name" }, { "word": "is", "start": 3.6799998, "end": 3.84, "confidence": 0.99902344, "speaker": 0, "speaker_confidence": 0.51462495, "punctuated_word": "is" }, { "word": "bob", "start": 3.84, "end": 4.3199997, "confidence": 1, "speaker": 0, "speaker_confidence": 0.51462495, "punctuated_word": "Bob." }, { "word": "how", "start": 4.3199997, "end": 4.48, Petrie Expires 2 January 2027 [Page 82] Internet-Draft JSON vCon July 2026 "confidence": 1, "speaker": 0, "speaker_confidence": 0.51462495, "punctuated_word": "How" }, { "word": "can", "start": 4.48, "end": 4.72, "confidence": 1, "speaker": 0, "speaker_confidence": 0.51462495, "punctuated_word": "can" }, { "word": "i", "start": 4.72, "end": 4.7999997, "confidence": 1, "speaker": 0, "speaker_confidence": 0.51462495, "punctuated_word": "I" }, { "word": "help", "start": 4.7999997, "end": 5.04, "confidence": 1, "speaker": 0, "speaker_confidence": 0.51462495, "punctuated_word": "help" }, { "word": "you", "start": 5.04, "end": 5.52, "confidence": 1, "speaker": 0, "speaker_confidence": 0.51462495, "punctuated_word": "you?" }, { "word": "hi", "start": 5.6, "end": 6.3199997, "confidence": 0.9995117, "speaker": 0, "speaker_confidence": 0.576506, Petrie Expires 2 January 2027 [Page 83] Internet-Draft JSON vCon July 2026 "punctuated_word": "Hi." }, { "word": "i'd", "start": 6.3199997, "end": 6.72, "confidence": 0.99560547, "speaker": 0, "speaker_confidence": 0.576506, "punctuated_word": "I'd" }, { "word": "like", "start": 6.72, "end": 6.8799996, "confidence": 1, "speaker": 0, "speaker_confidence": 0.576506, "punctuated_word": "like" }, { "word": "to", "start": 6.8799996, "end": 6.96, "confidence": 0.99902344, "speaker": 0, "speaker_confidence": 0.576506, "punctuated_word": "to" }, { "word": "add", "start": 6.96, "end": 7.2799997, "confidence": 0.9819336, "speaker": 0, "speaker_confidence": 0.576506, "punctuated_word": "add" }, { "word": "fu", "start": 7.2799997, "end": 7.68, "confidence": 0.36791992, "speaker": 0, "speaker_confidence": 0.576506, "punctuated_word": "Fu" }, { Petrie Expires 2 January 2027 [Page 84] Internet-Draft JSON vCon July 2026 "word": "to", "start": 7.68, "end": 8, "confidence": 0.99609375, "speaker": 0, "speaker_confidence": 0.576506, "punctuated_word": "to" }, { "word": "my", "start": 8, "end": 8.16, "confidence": 1, "speaker": 0, "speaker_confidence": 0.576506, "punctuated_word": "my" }, { "word": "service", "start": 8.16, "end": 8.799999, "confidence": 0.9892578, "speaker": 0, "speaker_confidence": 0.576506, "punctuated_word": "service." }, { "word": "okay", "start": 9.2, "end": 9.839999, "confidence": 1, "speaker": 0, "speaker_confidence": 0.576506, "punctuated_word": "Okay." }, { "word": "can", "start": 10.16, "end": 10.4, "confidence": 1, "speaker": 0, "speaker_confidence": 0.576506, "punctuated_word": "Can" }, { "word": "you", "start": 10.4, "end": 10.559999, Petrie Expires 2 January 2027 [Page 85] Internet-Draft JSON vCon July 2026 "confidence": 1, "speaker": 0, "speaker_confidence": 0.576506, "punctuated_word": "you" }, { "word": "give", "start": 10.559999, "end": 10.719999, "confidence": 0.99902344, "speaker": 0, "speaker_confidence": 0.576506, "punctuated_word": "give" }, { "word": "me", "start": 10.719999, "end": 10.88, "confidence": 1, "speaker": 0, "speaker_confidence": 0.576506, "punctuated_word": "me" }, { "word": "your", "start": 10.88, "end": 11.04, "confidence": 1, "speaker": 0, "speaker_confidence": 0.27221602, "punctuated_word": "your" }, { "word": "name", "start": 11.04, "end": 11.2, "confidence": 1, "speaker": 0, "speaker_confidence": 0.27221602, "punctuated_word": "name" }, { "word": "and", "start": 11.2, "end": 11.44, "confidence": 0.99902344, "speaker": 0, "speaker_confidence": 0.27221602, Petrie Expires 2 January 2027 [Page 86] Internet-Draft JSON vCon July 2026 "punctuated_word": "and" }, { "word": "phone", "start": 11.44, "end": 11.599999, "confidence": 1, "speaker": 0, "speaker_confidence": 0.27221602, "punctuated_word": "phone" }, { "word": "number", "start": 11.599999, "end": 11.84, "confidence": 0.99902344, "speaker": 0, "speaker_confidence": 0.27221602, "punctuated_word": "number" }, { "word": "so", "start": 11.84, "end": 12.08, "confidence": 0.8935547, "speaker": 0, "speaker_confidence": 0.27221602, "punctuated_word": "so" }, { "word": "i", "start": 12.08, "end": 12.16, "confidence": 0.99902344, "speaker": 0, "speaker_confidence": 0.27221602, "punctuated_word": "I" }, { "word": "can", "start": 12.16, "end": 12.32, "confidence": 0.99902344, "speaker": 0, "speaker_confidence": 0.6558119, "punctuated_word": "can" }, { Petrie Expires 2 January 2027 [Page 87] Internet-Draft JSON vCon July 2026 "word": "look", "start": 12.32, "end": 12.48, "confidence": 1, "speaker": 0, "speaker_confidence": 0.6558119, "punctuated_word": "look" }, { "word": "up", "start": 12.48, "end": 12.639999, "confidence": 0.9980469, "speaker": 0, "speaker_confidence": 0.6558119, "punctuated_word": "up" }, { "word": "your", "start": 12.639999, "end": 12.799999, "confidence": 0.9980469, "speaker": 0, "speaker_confidence": 0.6558119, "punctuated_word": "your" }, { "word": "account", "start": 12.799999, "end": 13.12, "confidence": 0.9980469, "speaker": 0, "speaker_confidence": 0.6558119, "punctuated_word": "account?" }, { "word": "my", "start": 13.735, "end": 14.135, "confidence": 1, "speaker": 0, "speaker_confidence": 0.6558119, "punctuated_word": "My" }, { "word": "name", "start": 14.135, "end": 14.295, Petrie Expires 2 January 2027 [Page 88] Internet-Draft JSON vCon July 2026 "confidence": 1, "speaker": 0, "speaker_confidence": 0.6558119, "punctuated_word": "name" }, { "word": "is", "start": 14.295, "end": 14.455, "confidence": 1, "speaker": 0, "speaker_confidence": 0.6558119, "punctuated_word": "is" }, { "word": "alice", "start": 14.455, "end": 15.174999, "confidence": 0.9355469, "speaker": 0, "speaker_confidence": 0.6558119, "punctuated_word": "Alice," }, { "word": "and", "start": 15.174999, "end": 15.335, "confidence": 1, "speaker": 0, "speaker_confidence": 0.6558119, "punctuated_word": "and" }, { "word": "my", "start": 15.335, "end": 15.575, "confidence": 1, "speaker": 0, "speaker_confidence": 0.6558119, "punctuated_word": "my" }, { "word": "number", "start": 15.575, "end": 15.8949995, "confidence": 1, "speaker": 0, "speaker_confidence": 0.6558119, Petrie Expires 2 January 2027 [Page 89] Internet-Draft JSON vCon July 2026 "punctuated_word": "number" }, { "word": "is", "start": 15.8949995, "end": 16.455, "confidence": 1, "speaker": 0, "speaker_confidence": 0.6558119, "punctuated_word": "is" }, { "word": "1234567890", "start": 16.455, "end": 20.615, "confidence": 0.9999512, "speaker": 0, "speaker_confidence": 0.65581185, "punctuated_word": "1234567890." }, { "word": "thank", "start": 20.775, "end": 21.095, "confidence": 1, "speaker": 0, "speaker_confidence": 0.6558119, "punctuated_word": "Thank" }, { "word": "you", "start": 21.095, "end": 21.654999, 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"confidence": 0.99902344, "speaker": 0, "speaker_confidence": 0.6558119, "punctuated_word": "your" }, { "word": "service", "start": 25.414875, "end": 25.734875, Petrie Expires 2 January 2027 [Page 91] Internet-Draft JSON vCon July 2026 "confidence": 0.99560547, "speaker": 0, "speaker_confidence": 0.6558119, "punctuated_word": "service." }, { "word": "is", "start": 25.734875, "end": 25.894875, "confidence": 1, "speaker": 0, "speaker_confidence": 0.49876177, "punctuated_word": "Is" }, { "word": "there", "start": 25.894875, "end": 26.054874, "confidence": 1, "speaker": 0, "speaker_confidence": 0.49876177, "punctuated_word": "there" }, { "word": "anything", "start": 26.054874, "end": 26.294874, "confidence": 1, "speaker": 0, "speaker_confidence": 0.49876177, "punctuated_word": "anything" }, { "word": "else", "start": 26.294874, "end": 26.534874, "confidence": 1, "speaker": 0, "speaker_confidence": 0.49876177, "punctuated_word": "else" }, { "word": "that", "start": 26.534874, "end": 26.694874, "confidence": 0.63183594, "speaker": 0, "speaker_confidence": 0.49876177, Petrie Expires 2 January 2027 [Page 92] Internet-Draft JSON vCon July 2026 "punctuated_word": "that" }, { "word": "i", "start": 26.694874, "end": 26.774876, "confidence": 0.99902344, "speaker": 0, "speaker_confidence": 0.49876177, "punctuated_word": "I" }, { "word": "can", "start": 26.774876, "end": 26.934875, "confidence": 1, "speaker": 0, "speaker_confidence": 0.49876177, "punctuated_word": "can" }, { "word": "help", "start": 26.934875, "end": 27.094875, "confidence": 1, "speaker": 0, "speaker_confidence": 0.49876177, "punctuated_word": "help" }, { "word": "you", "start": 27.094875, "end": 27.174875, "confidence": 1, "speaker": 0, "speaker_confidence": 0.49876177, "punctuated_word": "you" }, { "word": "with", "start": 27.174875, "end": 27.734875, "confidence": 1, "speaker": 0, "speaker_confidence": 0.49876177, "punctuated_word": "with?" }, { Petrie Expires 2 January 2027 [Page 93] Internet-Draft JSON vCon July 2026 "word": "no", "start": 28.054874, "end": 28.534874, "confidence": 1, "speaker": 0, "speaker_confidence": 0.49876177, "punctuated_word": "No." }, { "word": "thank", "start": 28.534874, "end": 28.774876, "confidence": 1, "speaker": 0, "speaker_confidence": 0.5973705, "punctuated_word": "Thank" }, { "word": "you", "start": 28.774876, "end": 29.334873, "confidence": 1, "speaker": 0, "speaker_confidence": 0.5973705, "punctuated_word": "you." }, { "word": "goodbye", "start": 29.334875, "end": 29.974874, "confidence": 0.99902344, "speaker": 0, "speaker_confidence": 0.5973705, "punctuated_word": "Goodbye." }, { "word": "goodbye", "start": 30.374874, "end": 31.014874, "confidence": 0.9995117, "speaker": 0, "speaker_confidence": 0.5973705, "punctuated_word": "Goodbye." }, { "word": "have", "start": 31.014874, "end": 31.334875, Petrie Expires 2 January 2027 [Page 94] Internet-Draft JSON vCon July 2026 "confidence": 1, "speaker": 0, "speaker_confidence": 0.5973705, "punctuated_word": "Have" }, { "word": "a", "start": 31.334875, "end": 31.494875, "confidence": 1, "speaker": 0, "speaker_confidence": 0.5973705, "punctuated_word": "a" }, { "word": "nice", "start": 31.494875, "end": 31.654875, "confidence": 0.99902344, "speaker": 0, "speaker_confidence": 0.5973705, "punctuated_word": "nice" }, { "word": "day", "start": 31.654875, "end": 31.894875, "confidence": 1, "speaker": 0, "speaker_confidence": 0, "punctuated_word": "day." } ], "paragraphs": { "transcript": "\nSpeaker 0: Hello. This is ex ample.com. My name is Bob. How can I help y ou? Hi.\n\nI'd like to add Fu to my service . Okay. Can you give me your name and phone number so I can look up your account? My n ame is Alice, and my number is 1234567890. Thank you.\n\nOkay. I've added two to your service. Is there anything else that I can help you with? No. Thank you.\n\nGoodbye. G oodbye. Have a nice day.", "paragraphs": [ { "sentences": [ { Petrie Expires 2 January 2027 [Page 95] Internet-Draft JSON vCon July 2026 "text": "Hello.", "start": 1.1999999, "end": 1.76 }, { "text": "This is example.com.", "start": 1.76, "end": 3.4399998 }, { "text": "My name is Bob.", "start": 3.4399998, "end": 4.3199997 }, { "text": "How can I help you?", "start": 4.3199997, "end": 5.52 }, { "text": "Hi.", "start": 5.6, "end": 6.3199997 } ], "speaker": 0, "num_words": 14, "start": 1.1999999, "end": 6.3199997 }, { "sentences": [ { "text": "I'd like to add Fu to my ser vice.", "start": 6.3199997, "end": 8.799999 }, { "text": "Okay.", "start": 9.2, "end": 9.839999 }, { "text": "Can you give me your name an d phone number so I can look up you r account?", "start": 10.16, Petrie Expires 2 January 2027 [Page 96] Internet-Draft JSON vCon July 2026 "end": 13.12 }, { "text": "My name is Alice, and my num ber is 1234567890.", "start": 13.735, "end": 20.615 }, { "text": "Thank you.", "start": 20.775, "end": 21.654999 } ], "speaker": 0, "num_words": 36, "start": 6.3199997, "end": 21.654999 }, { "sentences": [ { "text": "Okay.", "start": 22.935, "end": 23.335 }, { "text": "I've added two to your servi ce.", "start": 24.134874, "end": 25.734875 }, { "text": "Is there anything else that I can help you with?", "start": 25.734875, "end": 27.734875 }, { "text": "No.", "start": 28.054874, "end": 28.534874 }, { "text": "Thank you.", "start": 28.534874, "end": 29.334873 } Petrie Expires 2 January 2027 [Page 97] Internet-Draft JSON vCon July 2026 ], "speaker": 0, "num_words": 20, "start": 22.935, "end": 29.334873 }, { "sentences": [ { "text": "Goodbye.", "start": 29.334875, "end": 29.974874 }, { "text": "Goodbye.", "start": 30.374874, "end": 31.014874 }, { "text": "Have a nice day.", "start": 31.014874, "end": 31.894875 } ], "speaker": 0, "num_words": 6, "start": 29.334875, "end": 31.894875 } ] } } ] } ] } }, "encoding": "json", "vendor": "deepgram", "schema": "deepgram_prerecorded", "product": "transcription" } ], "attachments": [], "uuid": "019f15a6-a752-826f-b9a2-279e0d16bc46" } Petrie Expires 2 January 2027 [Page 98] Internet-Draft JSON vCon July 2026 A.6. Signed vCon This example vCon is the signed form of the Two Party Call vCon With Externally Referenced Recording (Appendix A.4) example. The private key used to sign this can be found at: https://raw.githubusercontent.com/vcon-dev/vcon/main/certs/fake_grp.key The certificate chain is included in the x5c parameter of the header Object. The unformatted version of the following example can be downloaded from: https://raw.githubusercontent.com/ietf-wg-vcon/draft-ietf-vcon- vcon-core/refs/heads/main/examples/ab_call_ext_rec_signed.vcon { "payload": "eyJwYXJ0aWVzIjpbeyJ0ZWwiOiIrMTIzNDU2Nzg5MDEiLCJuYW1 lIjoiQWxpY2UifSx7InRlbCI6IisxOTg3NjU0MzIxMCIsIm5hbWUiOiJCb2Ii fV0sImRpYWxvZyI6W3sidHlwZSI6InJlY29yZGluZyIsInN0YXJ0IjoiMjAyM i0wNi0yMVQxNzo1MzoyNi4wMDArMDA6MDAiLCJkdXJhdGlvbiI6MzMuMTIsIn BhcnRpZXMiOlswLDFdLCJ1cmwiOiJodHRwczovL2dpdGh1Yi5jb20vaWV0Zi1 3Zy12Y29uL2RyYWZ0LWlldGYtdmNvbi12Y29uLWNvcmUvcmF3L3JlZnMvaGVh ZHMvbWFpbi9leGFtcGxlcy9hYl9jYWxsLm1wMyIsIm1lZGlhdHlwZSI6ImF1Z GlvL3gtbXAzIiwiZmlsZW5hbWUiOiJhYl9jYWxsLm1wMyIsImNvbnRlbnRfaG FzaCI6InNoYTUxMi1HTHk2SVBhSVVNMUdxelpxZklQWmxXamFEc05nTnZaTTB pQ09OTlRobkgwYTc1ZmhVTTZjWXpMWjVHeW5TVVJSRXZad21PaDU0LTJsUlJp ZXlqODJVUSJ9XSwiYW5hbHlzaXMiOltdLCJhdHRhY2htZW50cyI6W10sInV1a WQiOiIwMTlmMTVhNi1hNzUyLTgyNmYtYjlhMi0yNzllMGQxNmJjNDYifQ", "signatures": [ { "header": { "x5c": [ 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2 January 2027 [Page 103] Internet-Draft JSON vCon July 2026 cENBaksremNBU2xweXZSQWdNQkFBR2pVekJSTUIwR0ExVWREZ1FXQkJTU 0R0ZnFVNitERXlZUENhcjA4eVZublpTRnpUQWZCZ05WSFNNRUdEQVdnQl NTRHRmcVU2K0RFeVlQQ2FyMDh5Vm5uWlNGelRBUEJnTlZIUk1CQWY4RUJ UQURBUUgvTUEwR0NTcUdTSWIzRFFFQkN3VUFBNElDQVFDOEpEeFRkbWM4 NllGZEtFbFdRbld4b1BNc1BlUnlEWVFvVlRDMnd5ZFpzZEo1ZEdia0FoW WxQUHhLK3p5cFAxOGZHcnk1UEhBSGw5bVpZeitGZEdqTlR3bGxjZk45L0 cwU2RveTRrVTllTjlLZkM5T1VJa0JJcThEMHI3QU5UM2wzWG1HYm5JeFd KRXRiMFN5VGNxazNkd1djTlRxR2d1aFEwM2pVS1c1eVVwVm9Rak40VHRt SHl3ZW9ZVE5pK0hLc0NVdkVYR2RBOXdkaDRqVk9xWWVlcG1zYXg1ZVRVS nNLdUNLcVEzK3hCN0pPTnc4NWltZlZvdHlTQ1hzb01lN2x1U1JZdWxkbj hTQklwS1lVR0pscFdJaTZHcjBtTHdIYXJyWW9pOWJ3dGNLQXhSTlhaaUd RZ2hpVXcyWnN3K2ptZ0JyRXRJNElhcmc4d1dxSjVNb3Y3TXNUVnBub1o1 WHl3cjBHem5EbGdjTnR5cU1pYk9VTGVNOHlMUFFySG4vdFFqU2lQM2VVU Ho2K1piOUZxelFKQ0NpMlVpYXVENG1PZ3pCU0NDYmV3OVBEWWIyUWVNWn FOWm1OM2VWTk1WNGhoN3Q5alRjMHpxUEY1amx1ZGRWbXBkSHhMeC9UOVh adVNWMjFwOGNsTnBySk5ReHBydEhweER4amhOTUlyY1YzOXJ6aTl0Tmlr 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Encrypted vCon This example vCon is the encrypted form of the Signed vCon (Appendix A.6) example. The private key to decrypt it can be found at: https://raw.githubusercontent.com/vcon-dev/vcon/main/certs/fake_grp.key The unformatted version of the following example can be downloaded from: https://raw.githubusercontent.com/ietf-wg-vcon/draft-ietf-vcon- vcon-core/refs/heads/main/examples/ab_call_ext_rec_encrypted.vcon { "protected": "eyJhbGciOiJSU0EtT0FFUCIsImVuYyI6IkEyNTZDQkMtSFM1M TIifQ", "iv": "KKIKWbVbB27V0cQCenwbIg", "ciphertext": "P0B2TYhcy8G-gOoD-498biJyIqAfJJz124AJ0wyK2eGYhP4Y 29pZfvuSO7O7xO331qCZrA12U2UQHbsTC2vGOs5nVej1ysIAkQH-pAzNgWdDV siVr5MCgkij4Jc6YLGRjRfm7XUpx9SfpSkQMkdFsOefMiSW4N8uDE7QvBSI6- S06l7O0qPhLuMXbdLQFsgMMXlvI40pax1ytUwQc1hH8lBVably_x8KmEtSkCO rKy5CsSbgCyIS-NrK4LI3o-m4jLHD5WKDxXn-YOVXSWD1rJA6un5PbweRb6rr 0EKTpGs_MKb5ibsona9qVLr8JU5KV-dp2uHVqOa_migRhIfo6DxlhRaZHE2RC 5bo7BW-jyufkm1YV4c2nbLfConBnimdgrkpoZsVqSsvv8xWZJCfy1bFhL0hUk 7IDeO_d18OAMcnJ3QnwJzZro0MfUgXi0enlasRgO2TAUN0Zw0uxXPA9fs8KL8 Petrie Expires 2 January 2027 [Page 104] Internet-Draft JSON vCon July 2026 Ixf2Z3pYr0FexUAPUdsuaoQfrbWIJ1p4c2waRILZoOlMW63946GIVa09swYxW s1vXiusDOQI15QIfE7U1W7OWEKd16wyTyCZb6kDMTaitxXaiz6Yzwg344F1Xv h7MLntAQhmvK5OMIhdvlU86hP-ezUbxCb3F1ciRcgHVCwA-RYZxqfWE2Y3nN4 cU31xGW2TwDt3R-NI1ca4MFifEbDMUyMEL1aZl6yR23SHgaMS3_zePBpiQEQI 9GqDQVqnsD5flnW9-Pa0CDoF5r6awWPotJ3XR5dGTvM9BgO3rZNWcRdBFV5E- TbaRfMKBB-xTgSe6AfL500mQ6Zq0qbXOtM044qCTcBAyPE8H3nE689DhE4zvB DRwIMy9wA4mfKu1Z7tr0Pg7WgWnYECar5dh1wfHDjVjf_agbc854OhEE7exVZ VQHnVAbrnXWihuyEUj5lSz22WEju9xEAMjlnfdJYCEoSexdV_ZixHunMJIZQ_ qBhntppgFXW9JWuY44goMfTzOigO-nNcNu6vkf7aPD9-DzQwCJ5ZFiKbslzgX bJH_CP3LFn6T8YbzkDPf07qEK1wKhtfQLUbLeIkH3Gdi6-8TqPiZBSPQ3p5hE wrkYQDLdejlpTt8DMEKRVQYBMPkZ2Zjivt8nOFmawrT7B5AvGrrlVewMlPwKZ cfWek-k13-jYuxlfcc2oTKdQ-cqBfKnTbR8kjVKyyyEVZYfSNV7hWJQ0OPCuw prxW5FHJ-tjoqJ_jkABbfqmikQNvstgq6XSkCbdMihKDMFp7EqAr66rjVHANr RmHnUUAR7T7OFCJK0HKL1UHBduyrFWVTWq3OzQS_QCOb5lzBwLsEZmSeiJ8SF vYqpUJ_X-6u3McsyPE_xKfi-rlG8eBKa0bZ6v-39C-x94oprfaAi7c_oZKzsv wc4k0P0LRXXiRPRC2QDCuHy7q5D9dmj6t_ce4sIR20VcSKbIejD-H24yCnWcI 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"tag": "hHOLREOYhFDWFmxf6VUGylAX6mn46n5KhLdiW5YSI6o", "recipients": [ { "header": { "enc": "A256CBC-HS512" }, "encrypted_key": "eYPoGY6w_Lw_Hk_fN9oP09A4aLopNf1XDmU0QgbCl _6PQihDLbTQLjmOQzyZc7nOkyhLYlWVrJIl3QXe8XW_6oxmr8iuezjnkf Petrie Expires 2 January 2027 [Page 110] Internet-Draft JSON vCon July 2026 CSYjvNBYfJoh0MgsfYPPQsMDpWCYpKviqpFJ8_cMjsj5DAgwzkD3W0jXK GzlrWiAl5dTZ9MwvcRB7PEmzbKpBFJpH45OwW4amC26edINT7XVZj789P kG8MWXDbVZSZlbLIFMBWP2dZPdYzXpwow9gJB6Fk6ApU45mmEKmyNLC_l zsFhxBafdooWoX2Hjo0l06ka5JNixdMsrWHfCcwqvS1mUlB0ix8aJ8iwR efa0IXFHbbpGuJlA" } ], "unprotected": { "uuid": "019f15a6-a752-826f-b9a2-279e0d16bc46", "cty": "application/vcon+json", "enc": "A256CBC-HS512" } } A.8. Redacted vCon This is an example redaction of the vCon in the example Two Party Call vCon With Externally Referenced Recording (Appendix A.4). Most notable is the Redacted object (Section 4.1.8) which references the lesser redacted version of this vCon. In addition the *url* parameter has been redacted from the Dialog Object (Section 4.3), but the rest of the Dialog Object (Section 4.3) was left in the redaction. The unformatted version of the following example can be downloaded from: https://raw.githubusercontent.com/ietf-wg-vcon/draft-ietf-vcon- vcon-core/refs/heads/main/examples/ab_call_ext_rec_redacted.vcon { "parties": [ { "name": "Alice" }, { "name": "Bob" } ], "dialog": [ { "type": "recording", "start": "2022-06-21T17:53:26.000+00:00", "duration": 33.12, "parties": [ 0, 1 ], "mediatype": "audio/x-mp3", "filename": "ab_call.mp3", Petrie Expires 2 January 2027 [Page 111] Internet-Draft JSON vCon July 2026 "content_hash": "sha512-GLy6IPaIUM1GqzZqfIPZlWjaDsNgNvZM0iC ONNThnH0a75fhUM6cYzLZ5GynSURREvZwmOh54-2lRRieyj82UQ" } ], "analysis": [ { "type": "transcript-redacted", "dialog": 0, "body": [ { "parties": 0, "start": "2022-06-21T17:53:27.200000+00:00", "duration": 0.5600001000000001, "text": "Hello." }, { "parties": 0, "start": "2022-06-21T17:53:27.760000+00:00", "duration": 1.6799997999999998, "text": "This is {{URL}}." }, { "parties": 0, "start": "2022-06-21T17:53:29.440000+00:00", "duration": 0.8799999000000005, "text": "My name is Bob." }, { "parties": 0, "start": "2022-06-21T17:53:30.320000+00:00", "duration": 1.2000002999999992, "text": "How can I help you?" }, { "parties": 0, "start": "2022-06-21T17:53:31.600000+00:00", "duration": 0.7199997000000007, "text": "Hi." }, { "parties": 0, "start": "2022-06-21T17:53:32.320000+00:00", "duration": 2.4799992999999994, "text": "I'd like to add Fu to my service." }, { "parties": 0, "start": "2022-06-21T17:53:35.200000+00:00", Petrie Expires 2 January 2027 [Page 112] Internet-Draft JSON vCon July 2026 "duration": 0.6399990000000013, "text": "{{US_STATE}}." }, { "parties": 0, "start": "2022-06-21T17:53:36.160000+00:00", "duration": 2.959999999999999, "text": "Can you give me your name and phone number so I can look up your account?" }, { "parties": 0, "start": "2022-06-21T17:53:39.735000+00:00", "duration": 6.879999999999999, "text": "My name is Alice, and my number is {{BAN}}." }, { "parties": 0, "start": "2022-06-21T17:53:46.775000+00:00", "duration": 0.8799990000000015, "text": "Thank you." }, { "parties": 0, "start": "2022-06-21T17:53:48.935000+00:00", "duration": 0.40000000000000213, "text": "{{US_STATE}}." }, { "parties": 0, "start": "2022-06-21T17:53:50.134874+00:00", "duration": 1.600000999999999, "text": "I've added two to your service." }, { "parties": 0, "start": "2022-06-21T17:53:51.734875+00:00", "duration": 2, "text": "Is there anything else that I can help you wit h?" }, { "parties": 0, "start": "2022-06-21T17:53:54.054874+00:00", "duration": 0.4799999999999969, "text": "No." }, { Petrie Expires 2 January 2027 [Page 113] Internet-Draft JSON vCon July 2026 "parties": 0, "start": "2022-06-21T17:53:54.534874+00:00", "duration": 0.7999990000000032, "text": "Thank you." }, { "parties": 0, "start": "2022-06-21T17:53:55.334875+00:00", "duration": 0.6399989999999995, "text": "Goodbye." }, { "parties": 0, "start": "2022-06-21T17:53:56.374874+00:00", "duration": 0.6400000000000006, "text": "Goodbye." }, { "parties": 0, "start": "2022-06-21T17:53:57.014874+00:00", "duration": 0.880001, "text": "Have a nice day." } ], "encoding": "json", "vendor": "CapitalOne", "schema": "data_labeler_schema", "product": "dataprofiler" } ], "attachments": [], "uuid": "01928e10-193e-8231-b9a2-279e0d16bc46", "redacted": { "uuid": "019f15a6-a752-826f-b9a2-279e0d16bc46", "type": "PII Redaction" } } A.9. Amended Signed vCon This is an example vCon with an Amended Object (Section 4.1.9) referencing the vCon that it amends or adds additional content. In this case it is referencing the signed vCon example above. An example text Dialog Object (index 1) is the amendment. The unformatted version of the following example can be downloaded from: https://raw.githubusercontent.com/ietf-wg-vcon/draft-ietf-vcon- vcon-core/refs/heads/main/examples/ab_call_ext_rec_amended.vcon Petrie Expires 2 January 2027 [Page 114] Internet-Draft JSON vCon July 2026 { "parties": [ { "tel": "+12345678901", "name": "Alice" }, { "tel": "+19876543210", "name": "Bob" } ], "dialog": [ { "type": "recording", "start": "2022-06-21T17:53:26.000+00:00", "duration": 33.12, "parties": [ 0, 1 ], "url": "https://github.com/ietf-wg-vcon/draft-ietf-vcon-vco n-core/raw/refs/heads/main/examples/ab_call.mp3", "mediatype": "audio/x-mp3", "filename": "ab_call.mp3", "content_hash": "sha512-GLy6IPaIUM1GqzZqfIPZlWjaDsNgNvZM0iC ONNThnH0a75fhUM6cYzLZ5GynSURREvZwmOh54-2lRRieyj82UQ" }, { "type": "text", "start": "2022-06-21T17:53:26.000+00:00", "parties": [ 1, 0 ], "mediatype": "text/plain", "body": "Good day!", "encoding": "none" } ], "analysis": [], "attachments": [], "uuid": "019f15a6-aa72-8dbd-a20f-d188127fad29", "amended": { "uuid": "019f15a6-a752-826f-b9a2-279e0d16bc46" } } TODO: recording-set example with party_history Petrie Expires 2 January 2027 [Page 115] Internet-Draft JSON vCon July 2026 Appendix B. vCon JSON Schema This JSON schema is provided as informational. The text in sections 1-6 of this document define the normative definition of the vCon schema. If the JSON schema provided below differs from that in the text of the above sections, the text should be taken as the definitive definition and the JSON Schema below should be consider incorrect. The JSON Schema definition below has been formatted with line breaks to print nicely on the page. The unformatted version of the JSON schema can be downloaded from: https://raw.githubusercontent.com/ ietf-wg-vcon/draft-ietf-vcon-vcon-core/refs/heads/main/ vcon_json_schema.json { "$schema": "http://json-schema.org/draft-07/schema#", "$id": "https://ietf.org/vcon/schemas/unsigned-vcon.json", "title": "vCon - Unsigned Form", "description": "JSON schema for the unsigned form of vCon (Conv ersational Data Container) as defined in RFCXXXX", "type": "object", "required": ["uuid", "created_at"], "properties": { "vcon": { "type": "string", "description": "DEPRECATED: Syntactic version of the JSON f ormat. This was used to indicate schema changes in the In ternet-Draft versions", "const": "0.4.0" }, "uuid": { "type": "string", "description": "Globally unique identifier for the vCon. SH OULD be a version 8 UUID", "format": "uuid" }, "extensions": { "type": "array", "description": "List of names of all vCon extensions used b y this vCon", "items": { "type": "string" } }, "critical": { "type": "array", "description": "List of extension names that a consumer MUS Petrie Expires 2 January 2027 [Page 116] Internet-Draft JSON vCon July 2026 T support to safely process this vCon", "items": { "type": "string" } }, "created_at": { "type": "string", "description": "Creation time of this vCon in RFC3339 forma t", "format": "date-time" }, "updated_at": { "type": "string", "description": "Last modified time of this vCon in RFC3339 format", "format": "date-time" }, "subject": { "type": "string", "description": "Subject or topic of the conversation" }, "redacted": { "type": "object", "description": "Reference to the unredacted or less redacte d vCon prior instance", "required": ["type"], "properties": { "uuid": { "type": "string", "description": "UUID of the unredacted or less redacted vCon prior instance", "format": "uuid" }, "type": { "type": "string", "description": "Type of redaction performed" }, "url": { "type": "string", "description": "HTTPS URL where the referenced vCon is stored", "format": "uri" }, "content_hash": { "oneOf": [ {"type": "string"}, {"type": "array", "items": {"type": "string"}} ], Petrie Expires 2 January 2027 [Page 117] Internet-Draft JSON vCon July 2026 "description": "Hash(es) of the external content using format: algorithm-base64url_encoded_hash" } } }, "amended": { "type": "object", "description": "Reference to the prior vCon instance versio n that this vCon amends", "properties": { "uuid": { "type": "string", "description": "UUID of the prior vCon instance version ", "format": "uuid" }, "url": { "type": "string", "description": "HTTPS URL where the referenced vCon is stored", "format": "uri" }, "content_hash": { "oneOf": [ {"type": "string"}, {"type": "array", "items": {"type": "string"}} ], "description": "Hash(es) of the external content (requi red if url is provided)" } } }, "parties": { "type": "array", "description": "Array of Party Objects representing all par ties involved in the conversation", "items": { "$ref": "#/definitions/Party" } }, "dialog": { "type": "array", "description": "Array of Dialog Objects containing the capt ured conversation content", "items": { "$ref": "#/definitions/Dialog" } }, Petrie Expires 2 January 2027 [Page 118] Internet-Draft JSON vCon July 2026 "analysis": { "type": "array", "description": "Array of Analysis Objects containing analys is performed on the conversational data", "items": { "$ref": "#/definitions/Analysis" } }, "attachments": { "type": "array", "description": "Array of Attachment Objects for ancillary d ocuments related to the conversation", "items": { "$ref": "#/definitions/Attachment" } } }, "definitions": { "Party": { "type": "object", "description": "Represents a party involved in the conversa tion", "properties": { "tel": { "type": "string", "description": "TEL URL (RFC3966) for the party" }, "sip": { "type": "string", "description": "SIP URL for the party" }, "stir": { "type": "string", "description": "STIR PASSporT in JWS Compact Serializat ion form" }, "mailto": { "type": "string", "description": "email address for the party" }, "name": { "type": "string", "description": "Name of the party" }, "did": { "type": "string", "description": "Decentralized Identifier (DID) URI for the party" Petrie Expires 2 January 2027 [Page 119] Internet-Draft JSON vCon July 2026 }, "validation": { "type": "string", "description": "Label or token identifying the method o f identity validation used" }, "gmlpos": { "type": "string", "description": "Geographic location in GML pos format ( latitude longitude)" }, "civicaddress": { "$ref": "#/definitions/Civicaddress" }, "uuid": { "type": "string", "description": "Unique identifier for the participant" }, "type": { "type": "string", "description": "Participant type" }, "org": { "type": "string", "description": "Organization to which the party belongs " }, "dept": { "type": "string", "description": "Department to which the party belongs" } } }, "Civicaddress": { "type": "object", "description": "Civic address information for a party's loc ation", "properties": { "country": {"type": "string"}, "a1": {"type": "string", "description": "National subdivi sion (state/province)"}, "a2": {"type": "string", "description": "County/parish/di strict"}, "a3": {"type": "string", "description": "City/township"}, "a4": {"type": "string", "description": "City division/bo rough"}, "a5": {"type": "string", "description": "Neighborhood/blo ck"}, Petrie Expires 2 January 2027 [Page 120] Internet-Draft JSON vCon July 2026 "a6": {"type": "string", "description": "Street"}, "prd": {"type": "string", "description": "Leading street direction"}, "pod": {"type": "string", "description": "Trailing street suffix"}, "sts": {"type": "string", "description": "Street suffix"} , "hno": {"type": "string", "description": "House number"}, "hns": {"type": "string", "description": "House number su ffix"}, "lmk": {"type": "string", "description": "Landmark"}, "loc": {"type": "string", "description": "Additional loca tion info"}, "flr": {"type": "string", "description": "Floor"}, "nam": {"type": "string", "description": "Name/occupant"} , "pc": {"type": "string", "description": "Postal code"} } }, "Dialog": { "type": "object", "description": "Represents a segment of captured conversati on", "required": ["type", "start"], "properties": { "type": { "type": "string", "enum": ["recording", "text", "transfer", "incomplete", "recording-set"], "description": "Type of dialog" }, "start": { "type": "string", "format": "date-time", "description": "Start time of the dialog in RFC3339 for mat" }, "duration": { "anyOf": [ {"type": "integer", "minimum": 0}, {"type": "number", "minimum": 0} ], "description": "Duration in seconds" }, "parties": { "anyOf": [ {"type": "integer", "minimum": 0}, {"type": "array", "items": {"type": "integer", "minim Petrie Expires 2 January 2027 [Page 121] Internet-Draft JSON vCon July 2026 um": 0}}, { "type": "array", "items": { "anyOf": [ {"type": "integer", "minimum": 0}, {"type": "array", "items": {"type": "integer", "minimum": 0}}, {"type": "null"} ] } } ], "description": "Index/indices of parties in the parties array" }, "originator": { "type": "integer", "minimum": 0, "description": "Index of the originating party if first party is not the originator" }, "recordings": { "type": "array", "items": {"type": "integer", "minimum" : 0}, "description": "recording-set reference to list of indi ces to recording Dialog Objects" }, "recording_set": { "type": "integer", "minimum": 0, "description": "Index of the recording-set Dialog Objec t that this recording is a part of" }, "mediatype": { "type": "string", "description": "Media type of the dialog content" }, "filename": { "type": "string", "description": "Original filename of the dialog content " }, "body": { "description": "Inline content of the dialog (for inlin e files). Any type for encoding=json, otherwise it m ust be a string." }, Petrie Expires 2 January 2027 [Page 122] Internet-Draft JSON vCon July 2026 "encoding": { "type": "string", "enum": ["base64url", "json", "none"], "description": "Encoding type for inline content" }, "url": { "type": "string", "format": "uri", "description": "HTTPS URL for externally referenced con tent" }, "content_hash": { "oneOf": [ {"type": "string"}, {"type": "array", "items": {"type": "string"}} ], "description": "Hash(es) of external content" }, "disposition": { "type": "string", "enum": ["no-answer", "congestion", "failed", "busy", " hung-up", "voicemail-no-message"], "description": "Reason for incomplete dialog (required for incomplete type)" }, "session_id": { "anyOf": [ {"$ref": "#/definitions/SessionId"}, {"type": "array", "items": {"$ref": "#/definitions/Se ssionId"}}, { "type": "array", "items": { "oneOf": [ {"$ref": "#/definitions/SessionId"}, {"type": "array", "items": {"$ref": "#/definiti ons/SessionId"}} ] } } ], "description": "Session ID(s) for the dialog" }, "party_history": { "type": "array", "items": {"$ref": "#/definitions/PartyHistory"}, "description": "History of party join/drop/hold/mute ev ents" Petrie Expires 2 January 2027 [Page 123] Internet-Draft JSON vCon July 2026 }, "transferee": { "type": "integer", "minimum": 0, "description": "Party index of the transferee (for tran sfer type)" }, "transferor": { "type": "integer", "minimum": 0, "description": "Party index of the transferor (for tran sfer type)" }, "transfer_target": { "oneOf": [ {"type": "integer", "minimum": 0}, {"type": "array", "items": {"type": "integer", "minim um": 0}} ], "description": "Party index/indices of the transfer tar get (for transfer type)" }, "original": { "oneOf": [ {"type": "integer", "minimum": 0}, {"type": "array", "items": {"type": "integer", "minim um": 0}} ], "description": "Dialog index/indices of original conver sation (for transfer type)" }, "consultation": { "oneOf": [ {"type": "integer", "minimum": 0}, {"type": "array", "items": {"type": "integer", "minim um": 0}} ], "description": "Dialog index/indices of consultation (f or transfer type)" }, "target_dialog": { "oneOf": [ {"type": "integer", "minimum": 0}, {"type": "array", "items": {"type": "integer", "minim um": 0}} ], "description": "Dialog index/indices of target dialog ( for transfer type)" Petrie Expires 2 January 2027 [Page 124] Internet-Draft JSON vCon July 2026 }, "application": { "type": "string", "description": "Application, communication channel or c ontext of the conversation" }, "message_id": { "type": "string", "description": "Unique message identifier from the mess aging system" } } }, "SessionId": { "type": "object", "description": "Session identifier with local and remote UU IDs", "properties": { "local": { "type": "string", "description": "Local UUID for the session" }, "remote": { "type": "string", "description": "Remote UUID for the session" } } }, "PartyHistory": { "type": "object", "description": "Records party events during the dialog", "required": ["party", "time", "event"], "properties": { "party": { "type": "integer", "minimum": 0, "description": "Index of the party" }, "time": { "type": "string", "format": "date-time", "description": "Time of the event in RFC3339 format" }, "event": { "type": "string", "enum": ["join", "drop", "hold", "unhold", "mute", "unm ute", "keydown", "keyup"], "description": "Type of event" Petrie Expires 2 January 2027 [Page 125] Internet-Draft JSON vCon July 2026 }, "button": { "type": "string", "description": "DTMF digit, character or string (requir ed for keydown/keyup events)" } } }, "Attachment": { "type": "object", "description": "Represents an ancillary document related to the conversation", "required": ["start", "party", "dialog"], "properties": { "purpose": { "type": "string", "description": "text description of what the attachment is for" }, "start": { "type": "string", "format": "date-time", "description": "Time the attachment was sent/exchanged in RFC3339 format" }, "party": { "type": "integer", "minimum": 0, "description": "Index of the party that contributed the attachment" }, "dialog": { "type": "integer", "minimum": 0, "description": "Index of the dialog this attachment is part of" }, "mediatype": { "type": "string", "description": "Media type of the attachment" }, "filename": { "type": "string", "description": "Original filename of the attachment" }, "body": { "description": "Inline content of the attachment (for i nline files). Any type for encoding=json, otherwise Petrie Expires 2 January 2027 [Page 126] Internet-Draft JSON vCon July 2026 it must be a string." }, "encoding": { "type": "string", "enum": ["base64url", "json", "none"], "description": "Encoding type for inline content" }, "url": { "type": "string", "format": "uri", "description": "HTTPS URL for externally referenced att achment" }, "content_hash": { "oneOf": [ {"type": "string"}, {"type": "array", "items": {"type": "string"}} ], "description": "Hash(es) of external content" } } }, "Analysis": { "type": "object", "description": "Represents analysis performed on the conver sational data", "required": ["type", "vendor"], "properties": { "type": { "type": "string", "description": "Semantic type of analysis (e.g., report , sentiment, summary, transcript, translation, tts)" }, "dialog": { "oneOf": [ {"type": "integer", "minimum": 0}, {"type": "array", "items": {"type": "integer", "minim um": 0}} ], "description": "Index/indices of dialog objects this an alysis is based on" }, "attachment": { "oneOf": [ {"type": "integer", "minimum": 0}, {"type": "array", "items": {"type": "integer", "minim um": 0}} ], Petrie Expires 2 January 2027 [Page 127] Internet-Draft JSON vCon July 2026 "description": "Index/indices of attachment objects thi s analysis is based on" }, "mediatype": { "type": "string", "description": "Media type of the analysis file" }, "filename": { "type": "string", "description": "Original filename of the analysis data" }, "vendor": { "type": "string", "description": "Vendor or product name that generated t he analysis" }, "product": { "type": "string", "description": "Product name to differentiate from othe r vendor products" }, "schema": { "type": "string", "description": "Token or label for the data format/sche ma of the analysis" }, "body": { "description": "Inline content of the analysis (for inl ine files). Any type for encoding=json, otherwise it must be a string." }, "encoding": { "type": "string", "enum": ["base64url", "json", "none"], "description": "Encoding type for inline content" }, "url": { "type": "string", "format": "uri", "description": "HTTPS URL for externally referenced ana lysis" }, "content_hash": { "oneOf": [ {"type": "string"}, {"type": "array", "items": {"type": "string"}} ], "description": "Hash(es) of external content" Petrie Expires 2 January 2027 [Page 128] Internet-Draft JSON vCon July 2026 } } } } } Acknowledgments * Thank you to Thomas McCarthy-Howe for inventing the concept of a vCon and the many discussions that we had while this concept was developed into reality. * Thank you to Jonathan Rosenberg and Andrew Siciliano for their input to the vCon container requirements in the form of I-D: draft-rosenberg-vcon-cc-usecases. * Thank you to Rohan Mahy for his help in exploring the CDDL schema and CBOR format for vCon and testing out the extension framework with MIME. * The examples in this document were generated using the command line interface (CLI) from the py-vcon [PY-VCON] python open source project. * Thank you to Steve Lasker for formatting and spelling edits. * Thank you to Mike Jones for input and help media types, version and helping to form the extension framework. * Thank you to Jonathan Lennox for numerous inputs including separate single channel recordings per party and the extension framework. * Thank you to Marc Petit-Huguenin for sorting out session_id. * Thank you to Rob Sliwa for helping to review and test the JSON Schema. * Thank you to Mike Jones, Richard Barnes and Mike Ounsworth for their help with providing an approach to maintaining integrity for long term storage of signed vCons. * Thank you to Scott Godin for the idea and help on designing the multi-segment recording metadata concept for recording-set. Author's Address Petrie Expires 2 January 2027 [Page 129] Internet-Draft JSON vCon July 2026 Daniel G Petrie SIPez LLC Email: dan.ietf@sipez.com Petrie Expires 2 January 2027 [Page 130]