The SIP P-Served-User Private-Header (P-Header) for the 3GPP IP Multimedia (IM) Core Network (CN) Subsystem
RFC 5502

 
Document
Type RFC - Informational (April 2009; No errata)
Was draft-vanelburg-sipping-served-user (individual in rai area)
Last updated 2013-03-02
Stream IETF
Formats plain text pdf html
Stream
WG state (None)
Consensus Unknown
Document shepherd No shepherd assigned
IESG
IESG state RFC 5502 (Informational)
Telechat date
Responsible AD Jon Peterson
Send notices to hanserik.van.elburg@ericsson.com, draft-vanelburg-sipping-served-user@ietf.org, sipping-chairs@ietf.org

Email authors IPR 1 References Referenced by Nits Search lists

Network Working Group                                      J. van Elburg
Request for Comments: 5502                Ericsson Telecommunicatie B.V.
Category: Informational                                       April 2009

            The SIP P-Served-User Private-Header (P-Header)
      for the 3GPP IP Multimedia (IM) Core Network (CN) Subsystem

Status of This Memo

   This memo provides information for the Internet community.  It does
   not specify an Internet standard of any kind.  Distribution of this
   memo is unlimited.

Copyright Notice

   Copyright (c) 2009 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents in effect on the date of
   publication of this document (http://trustee.ietf.org/license-info).
   Please review these documents carefully, as they describe your rights
   and restrictions with respect to this document.

   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.

Abstract

   This document specifies the SIP P-Served-User P-header.  This header
   field addresses an issue that was found in the 3rd Generation
   Partnership Project (3GPP) IMS (IP Multimedia Subsystem) between an
   S-CSCF (Serving Call Session Control Function) and an AS (Application
   Server) on the ISC (IMS Service Control) interface.  This header
   field conveys the identity of the served user and the session case
   that applies to this particular communication session and application
   invocation.

van Elburg                   Informational                      [Page 1]
RFC 5502               The P-Served-User P-Header             April 2009

Table of Contents

   1. Introduction ....................................................3
   2. Conventions .....................................................3
   3. Definitions .....................................................3
      3.1. Identity, Network Asserted Identity, Trust Domain,
           and Spec(T) ................................................3
      3.2. Served User ................................................3
   4. Scenarios .......................................................4
      4.1. General ....................................................4
      4.2. Diversion: Continue on Terminating Leg, but Finish
           Subsequent Terminating iFC First ...........................5
      4.3. Diversion: Create New Originating Leg and Provide
           Originating iFC Processing .................................6
      4.4. Call Out of the Blue: on Behalf of User B, but
           Service Profile of Service Identity C.......................8
   5. Requirements ....................................................8
   6. P-Served-User Header Field Definition ...........................9
   7. Proxy Behavior ..................................................9
      7.1. Generating the P-Served-User Header ........................9
      7.2. Consuming the P-Served-User Header ........................10
   8. Applicability ..................................................10
   9. IANA Considerations ............................................11
   10. Security Considerations .......................................11
   11. Acknowledgments ...............................................11
   12. References ....................................................12
      12.1. Normative References .....................................12
      12.2. Informative References ...................................12
   Appendix A.  Why the History-Info Header Is Not Suitable to
                Convey the Served User Information on the ISC
                Interface ............................................13
     A.1.  Semantics  ................................................13
     A.2.  Additional Observations  ..................................13
     A.3.  Conclusion ................................................14

van Elburg                   Informational                      [Page 2]
RFC 5502               The P-Served-User P-Header             April 2009
Show full document text