Instant Messaging and Presence Purpose for the Call-Info Header in the Session Initiation Protocol (SIP)
draft-saintandre-impp-call-info-00
The information below is for an old version of the document.
| Document | Type |
This is an older version of an Internet-Draft that was ultimately published as RFC 6993.
|
|
|---|---|---|---|
| Author | Peter Saint-Andre | ||
| Last updated | 2013-03-10 | ||
| RFC stream | (None) | ||
| Formats | |||
| Reviews | |||
| Additional resources | |||
| Stream | Stream state | (No stream defined) | |
| Consensus boilerplate | Unknown | ||
| RFC Editor Note | (None) | ||
| IESG | IESG state | Became RFC 6993 (Informational) | |
| Telechat date | (None) | ||
| Responsible AD | (None) | ||
| Send notices to | (None) |
draft-saintandre-impp-call-info-00
Network Working Group P. Saint-Andre
Internet-Draft Cisco Systems, Inc.
Intended status: Standards Track March 10, 2013
Expires: September 11, 2013
Instant Messaging and Presence Purpose for the Call-Info Header in the
Session Initiation Protocol (SIP)
draft-saintandre-impp-call-info-00
Abstract
This document defines and registers a value of "impp" ("instant
messaging and presence protocol") for the "purpose" header field
parameter of the Call-Info header field in the Session Initiation
Protocol (SIP).
Status of This Memo
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.
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This Internet-Draft will expire on September 11, 2013.
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Internet-Draft Call-Info Purpose: IMPP March 2013
Table of Contents
1. Definition . . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Security Considerations . . . . . . . . . . . . . . . . . . . 2
3. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 2
4. References . . . . . . . . . . . . . . . . . . . . . . . . . 3
4.1. Normative References . . . . . . . . . . . . . . . . . . 3
4.2. Informative References . . . . . . . . . . . . . . . . . 3
Appendix A. Acknowledgements . . . . . . . . . . . . . . . . . . 3
Author's Address . . . . . . . . . . . . . . . . . . . . . . . . 3
1. Definition
Developers of real-time communication endpoints that implement both
the Session Initiation Protocol (SIP) [RFC3261] and the Extensible
Messaging and Presence Protocol (XMPP) [RFC6120] sometimes wish to
communicate the endpoint's SIP address over XMPP and communicate the
endpoint's XMPP address over SIP. The former feature is enabled by
an XMPP extension protocol called Reachability Addresses [XEP-0152].
As to the latter feature, discussion in the SIP community led to the
conclusion of using the Call-Info header [RFC3261], with a predefined
value of "impp" ("instant messaging and presence protocol") for the
"purpose" header. Therefore this document defines and registers the
"impp" value for the "purpose" parameter.
(Although the primary use case for the "impp" purpose is dual-stack
SIP/XMPP endpoints [I-D.ivov-xmpp-cusax], a Uniform Resource
Identifier (URI) [RFC3986] for instant messaging and presence
protocols other than XMPP could be included in the Call-Info header.)
2. Security Considerations
Advertising an endpoint's XMPP address over SIP could inform
malicious entities about an alternative attack vector.
3. IANA Considerations
The IANA is requested to add a new predefined value "impp" for the
"purpose" header field parameter of the Call-Info header field, by
adding this RFC as a reference to the line for the header field
"Call-Info" and parameter name "purpose":
Header Field: Call-Info
Parameter Name: purpose
Predefined Values: yes
Reference: [RFC3261][RFC5367][RFC XXXX]
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4. References
4.1. Normative References
[RFC3261] Rosenberg, J., Schulzrinne, H., Camarillo, G., Johnston,
A., Peterson, J., Sparks, R., Handley, M., and E.
Schooler, "SIP: Session Initiation Protocol", RFC 3261,
June 2002.
[RFC3986] Berners-Lee, T., Fielding, R., and L. Masinter, "Uniform
Resource Identifier (URI): Generic Syntax", STD 66, RFC
3986, January 2005.
[RFC6120] Saint-Andre, P., "Extensible Messaging and Presence
Protocol (XMPP): Core", RFC 6120, March 2011.
4.2. Informative References
[I-D.ivov-xmpp-cusax]
Ivov, E., Marocco, E., and P. Saint-Andre, "Combined Use
of the Session Initiation Protocol (SIP) and the
Extensible Messaging and Presence Protocol (CUSAX)",
draft-ivov-xmpp-cusax-03 (work in progress), February
2013.
[XEP-0152]
Saint-Andre, P. and J. Hildebrand, "Reachability
Addresses", XSF XEP 0152, February 2013.
Appendix A. Acknowledgements
Thanks to Keith Drage, Saul Ibarra, Emil Ivov, Cullen Jennings, Olle
Johanssen, Paul Kyzivat, Gonzalo Salgueiro, Dean Willis, and Dale
Worley for their input.
Author's Address
Peter Saint-Andre
Cisco Systems, Inc.
1899 Wynkoop Street, Suite 600
Denver, CO 80202
USA
Phone: +1-303-308-3282
Email: psaintan@cisco.com
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