An Extension to the Session Initiation Protocol (SIP) for Request History Information
draft-ietf-sipcore-rfc4244bis-08

The information below is for an old version of the document
Document Type Active Internet-Draft (sipcore WG)
Last updated 2012-08-24 (latest revision 2012-04-30)
Replaces draft-barnes-sipcore-rfc4244bis
Stream IETF
Intended RFC status Proposed Standard
Formats plain text pdf html
Stream WG state WG Document Jul 2012
Document shepherd None
IESG IESG state AD Evaluation::Revised I-D Needed
Telechat date
Responsible AD Robert Sparks
IESG note Paul Kyzivat (pkyzivat@alum.mit.edu) is the document shepherd.
Send notices to sipcore-chairs@tools.ietf.org, draft-ietf-sipcore-rfc4244bis@tools.ietf.org
Network Working Group                                          M. Barnes
Internet-Draft                                                   Polycom
Obsoletes: 4244 (if approved)                                   F. Audet
Intended status: Standards Track                                   Skype
Expires: October 3, 2012                                     S. Schubert
                                                                     NTT
                                                           J. van Elburg
                                              Detecon International Gmbh
                                                             C. Holmberg
                                                                Ericsson
                                                                Apr 2012

   An Extension to the Session Initiation Protocol (SIP) for Request
                          History Information
                  draft-ietf-sipcore-rfc4244bis-08.txt

Abstract

   This document defines a standard mechanism for capturing the history
   information associated with a Session Initiation Protocol (SIP)
   request.  This capability enables many enhanced services by providing
   the information as to how and why a SIP request arrives at a specific
   application or user.  This document defines an optional SIP header
   field, History-Info, for capturing the history information in
   requests.  The document also defines SIP header field parameters for
   the History-Info and Contact header fields to tag the method by which
   the target of a request is determined.  In addition, this
   specification defines a value for the Privacy header field that
   directs the anonymization of values in the History-Info header field
   This document obsoletes RFC 4244.

Status of this Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at http://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on October 3, 2012.

Barnes, et al.           Expires October 3, 2012                [Page 1]
Internet-Draft                History-Info                      Apr 2012

Copyright Notice

   Copyright (c) 2012 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
   (http://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
   carefully, as they describe your rights and restrictions with respect
   to this document.  Code Components extracted from this document must
   include Simplified BSD License text as described in Section 4.e of
   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

   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.

Barnes, et al.           Expires October 3, 2012                [Page 2]
Internet-Draft                History-Info                      Apr 2012

Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  5
   2.  Conventions and Terminology  . . . . . . . . . . . . . . . . .  5
   3.  Background . . . . . . . . . . . . . . . . . . . . . . . . . .  6
   4.  Overview . . . . . . . . . . . . . . . . . . . . . . . . . . .  7
   5.  History-Info Header Field Protocol Structure . . . . . . . . .  8
     5.1.  History-Info Header Field Example Scenario . . . . . . . . 11
   6.  User Agent Handling of the History-Info Header Field . . . . . 14
     6.1.  User Agent Client (UAC) Behavior . . . . . . . . . . . . . 14
Show full document text