RFC 2976 (rfc2976) - Page 1 of 9
The SIP INFO Method
Alternative Format: Original Text Document
Network Working Group S. Donovan
Request for Comments: 2976 dynamicsoft
Category: Standards Track October 2000
The SIP INFO Method
Status of this Memo
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.
Copyright Notice
Copyright (C) The Internet Society (2000). All Rights Reserved.
Abstract
This document proposes an extension to the Session Initiation
Protocol (SIP). This extension adds the INFO method to the SIP
protocol. The intent of the INFO method is to allow for the carrying
of session related control information that is generated during a
session. One example of such session control information is ISUP and
ISDN signaling messages used to control telephony call services.
This and other example uses of the INFO method may be standardized in
the future.
Table of Contents
1 Introduction................................................2
1.1 Example Uses................................................2
2 INFO Method.................................................3
2.1 Header Field Support for INFO Method........................3
2.2 Responses to the INFO Request Method........................4
2.3 Message Body Inclusion......................................5
2.4 Behavior of SIP User Agents.................................6
2.5 Behavior of SIP Proxy and Redirect Servers..................6
2.5.1 Proxy Server................................................6
2.5.2 Forking Proxy Server........................................6
2.5.3 Redirection Server..........................................6
3. INFO Message Bodies.........................................6
4. Guidelines for extensions making use of INFO................7
5. Security Considerations.....................................7
6. References..................................................8
Donovan Standards Track
