Browse Prior Art Database

Update to the Session Initiation Protocol (SIP) Preconditions Framework (RFC4032)

IP.com Disclosure Number: IPCOM000090520D
Original Publication Date: 2005-Mar-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 11 page(s) / 21K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

G. Camarillo: AUTHOR [+2]

Abstract

This document updates RFC 3312, which defines the framework for preconditions in SIP. We provide guidelines for authors of new precondition types and describe how to use SIP preconditions in situations that involve session mobility.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 13% of the total text.

Network Working Group                                       G. Camarillo

Request for Comments: 4032                                      Ericsson

Updates: 3312                                                 P. Kyzivat

Category: Standards Track                                  Cisco Systems

                                                              March 2005

            Update to the Session Initiation Protocol (SIP)

                        Preconditions Framework

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 (2005).

Abstract

   This document updates RFC 3312, which defines the framework for

   preconditions in SIP.  We provide guidelines for authors of new

   precondition types and describe how to use SIP preconditions in

   situations that involve session mobility.

Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  2

   2.  Terminology  . . . . . . . . . . . . . . . . . . . . . . . . .  2

   3.  Defining New Precondition Types  . . . . . . . . . . . . . . .  3

       3.1.  Precondition Type Tag  . . . . . . . . . . . . . . . . .  3

       3.2.  Status Type  . . . . . . . . . . . . . . . . . . . . . .  3

       3.3.  Precondition Strength  . . . . . . . . . . . . . . . . .  3

       3.4.  Suspending and Resuming Session Establishment  . . . . .  3

   4.  Issues Related to Session Mobility . . . . . . . . . . . . . .  4

       4.1.  Update to RFC 3312 . . . . . . . . . . . . . . . . . . .  5

       4.2.  Desired Status . . . . . . . . . . . . . . . . . . . . .  7

   5.  Security Considerations  . . . . . . . . . . . . . . . . . . .  7

   6.  IANA Considerations  . . . . . . . . . . . . . . . . . . . . .  7

   7.  Acknowledgements . . . . . . . . . . . . . . . . . . . . . . .  8

   8.  References . . . . . . . . . . . . . . . . . . . . . . . . . .  8

       8.1.  Normative References . . . . . . . . . . . . . . . . . .  8

Camarillo & Kyzivat         Standards Track                     [Page 1]

RFC 4032              SIP Preconditions Framework             March 2005

       8.2.  Informational References . . . . . . . . . . . . . . . .  8

   Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . ....