PASSporT Extension for Rich Call Data

The information below is for an old version of the document
Document Type Expired Internet-Draft (stir WG)
Authors Jon Peterson  , Chris Wendt 
Last updated 2020-09-10 (latest revision 2020-03-09)
Replaces draft-peterson-stir-cnam
Stream Internet Engineering Task Force (IETF)
Expired & archived
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Stream WG state WG Document (wg milestone: Nov 2019 - Submit PASSPorT Exte... )
Document shepherd No shepherd assigned
IESG IESG state Expired
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document extends PASSporT, a token for conveying cryptographically-signed call information about personal communications, to include rich data that can be transmitted and subsequently rendered to users, extending identifying information beyond human-readable display name comparable to the "Caller ID" function common on the telephone network. The element defined for this purpose, Rich Call Data (RCD), is an extensible object defined to either be used as part of STIR or with SIP Call-Info to include related information about calls that helps people decide whether to pick up the phone. This signing of the RCD information is also enhanced with an integrity mechanism to optionally protect the handling of this information between authoritative and non- authoritative parties authoring and signing the Rich Call Data for support of different usage and content policies.


Jon Peterson (
Chris Wendt (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)