RFC 3840 on Indicating User Agent Capabilities in the Session Initiation Protocol (SIP)

A new Request for Comments is now available in online RFC libraries.

        RFC 3840

        Title:      Indicating User Agent Capabilities in
                    the Session Initiation Protocol (SIP)
        Author(s):  J. Rosenberg, H. Schulzrinne, P. Kyzivat
        Status:     Standards Track
        Date:       August 2004
        Mailbox:    jdrosen@dynamicsoft.com,
                    schulzrinne@cs.columbia.edu, pkyzivat@cisco.com
        Pages:      36
        Characters: 81360
        Updates/Obsoletes/SeeAlso:    None

        I-D Tag:    draft-ietf-sip-callee-caps-03.txt

        URL:        ftp://ftp.rfc-editor.org/in-notes/rfc3840.txt

This specification defines mechanisms by which a Session Initiation
Protocol (SIP) user agent can convey its capabilities and
characteristics to other user agents and to the registrar for its
domain.  This information is conveyed as parameters of the Contact
header field.

This document is a product of the Session Initiation Protocol Working
Group of the IETF.

This is now a Proposed Standard Protocol.

This document specifies an Internet standards track protocol for
the Internet community, and requests discussion and suggestions
for improvements.  Please refer to the current edition of the
"Internet Official Protocol Standards" (STD 1) for the
standardization state and status of this protocol.  Distribution
of this memo is unlimited.

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Joyce K. Reynolds and Sandy Ginoza
USC/Information Sciences Institute

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