Change Process for the Session Initiation Protocol (SIP) and the Real-time Applications and Infrastructure Area
RFC 5727

Internet Engineering Task Force (IETF)                       J. Peterson
Request for Comments: 5727                                 NeuStar, Inc.
BCP: 67                                                      C. Jennings
Obsoletes: 3427                                            Cisco Systems
Updates: 3265, 3969                                            R. Sparks
Category: Best Current Practice                                  Tekelec
ISSN: 2070-1721                                               March 2010

        Change Process for the Session Initiation Protocol (SIP)
         and the Real-time Applications and Infrastructure Area

Abstract

   This memo documents a process intended to organize the future
   development of the Session Initiation Protocol (SIP) and related work
   in the Real-time Applications and Infrastructure (RAI) Area.  As the
   environments in which SIP is deployed grow more numerous and diverse,
   modifying or extending SIP in certain ways may threaten the
   interoperability and security of the protocol; however, the IETF
   process must also cater to the realities of existing deployments and
   serve the needs of the implementers working with SIP.  This document
   therefore defines the functions of two long-lived working groups in
   the RAI Area that are, respectively, responsible for the maintenance
   of the core SIP specifications and the development of new efforts to
   extend and apply work in this space.  This document obsoletes RFC
   3427.

Status of This Memo

   This memo documents an Internet Best Current Practice.

   This document is a product of the Internet Engineering Task Force
   (IETF).  It represents the consensus of the IETF community.  It has
   received public review and has been approved for publication by the
   Internet Engineering Steering Group (IESG).  Further information on
   BCPs is available in Section 2 of RFC 5741.

   Information about the current status of this document, any errata,
   and how to provide feedback on it may be obtained at
   http://www.rfc-editor.org/info/rfc5727.

Peterson, et al.          Best Current Practice                 [Page 1]
RFC 5727                       SIP Change                     March 2010

Copyright Notice

   Copyright (c) 2010 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

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   This document may contain material from IETF Documents or IETF
   Contributions published or made publicly available before November
   10, 2008.  The person(s) controlling the copyright in some of this
   material may not have granted the IETF Trust the right to allow
   modifications of such material outside the IETF Standards Process.
   Without obtaining an adequate license from the person(s) controlling
   the copyright in such materials, this document may not be modified
   outside the IETF Standards Process, and derivative works of it may
   not be created outside the IETF Standards Process, except to format
   it for publication as an RFC or to translate it into languages other
   than English.

Table of Contents

   1.  History and Development  . . . . . . . . . . . . . . . . . . .  3
     1.1.  The IETF SIPCORE Working Group . . . . . . . . . . . . . .  3
     1.2.  The IETF DISPATCH Working Group  . . . . . . . . . . . . .  4
   2.  Terminology  . . . . . . . . . . . . . . . . . . . . . . . . .  5
   3.  Introducing New Work to RAI  . . . . . . . . . . . . . . . . .  6
   4.  Extensibility and Architecture . . . . . . . . . . . . . . . .  7
     4.1.  SIP Event Packages . . . . . . . . . . . . . . . . . . . .  9
   5.  Summary  . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
   6.  Security Considerations  . . . . . . . . . . . . . . . . . . . 11
   7.  IANA Considerations  . . . . . . . . . . . . . . . . . . . . . 11
     7.1.  Clarification of RFC 3969  . . . . . . . . . . . . . . . . 12
   8.  Overview of Changes to RFC 3427  . . . . . . . . . . . . . . . 12
   9.  Acknowledgments  . . . . . . . . . . . . . . . . . . . . . . . 12
   10. References . . . . . . . . . . . . . . . . . . . . . . . . . . 13
     10.1. Normative References . . . . . . . . . . . . . . . . . . . 13
     10.2. Informative References . . . . . . . . . . . . . . . . . . 13

Peterson, et al.          Best Current Practice                 [Page 2]