Interworking between the Session Initiation Protocol (SIP) and the Extensible Messaging and Presence Protocol (XMPP): Presence
draft-ietf-stox-7248bis-00

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Network Working Group                                     P. Saint-Andre
Internet-Draft                                                      &yet
Obsoletes: 7248 (if approved)                              March 3, 2015
Intended status: Standards Track
Expires: September 4, 2015

   Interworking between the Session Initiation Protocol (SIP) and the
      Extensible Messaging and Presence Protocol (XMPP): Presence
                       draft-ietf-stox-7248bis-00

Abstract

   This document defines a bi-directional protocol mapping for the
   exchange of presence information between the Session Initiation
   Protocol (SIP) and the Extensible Messaging and Presence Protocol
   (XMPP).  This document obsoletes RFC 7248.

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   This Internet-Draft will expire on September 4, 2015.

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   Copyright (c) 2015 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

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   the Trust Legal Provisions and are provided without warranty as
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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Intended Audience . . . . . . . . . . . . . . . . . . . . . .   3
   3.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   3
   4.  Subscriptions to Presence Information . . . . . . . . . . . .   4
     4.1.  Overview  . . . . . . . . . . . . . . . . . . . . . . . .   4
     4.2.  XMPP to SIP . . . . . . . . . . . . . . . . . . . . . . .   5
       4.2.1.  Establishing a Presence Subscription  . . . . . . . .   5
       4.2.2.  Refreshing a Presence Subscription  . . . . . . . . .   9
       4.2.3.  Cancelling a Presence Subscription  . . . . . . . . .   9
     4.3.  SIP to XMPP . . . . . . . . . . . . . . . . . . . . . . .  11
       4.3.1.  Establishing a Presence Subscription  . . . . . . . .  11
       4.3.2.  Refreshing a Presence Subscription  . . . . . . . . .  14
       4.3.3.  Cancelling a Presence Subscription  . . . . . . . . .  15
   5.  Notifications of Presence Information . . . . . . . . . . . .  16
     5.1.  Overview  . . . . . . . . . . . . . . . . . . . . . . . .  16
     5.2.  XMPP to SIP . . . . . . . . . . . . . . . . . . . . . . .  17
     5.3.  SIP to XMPP . . . . . . . . . . . . . . . . . . . . . . .  21
   6.  Requests for Presence Information . . . . . . . . . . . . . .  23
     6.1.  XMPP to SIP . . . . . . . . . . . . . . . . . . . . . . .  23
     6.2.  SIP to XMPP . . . . . . . . . . . . . . . . . . . . . . .  24
   7.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  24
   8.  Security Considerations . . . . . . . . . . . . . . . . . . .  24
   9.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  25
     9.1.  Normative References  . . . . . . . . . . . . . . . . . .  25
     9.2.  Informative References  . . . . . . . . . . . . . . . . .  26
   Appendix A.  Acknowledgements . . . . . . . . . . . . . . . . . .  26
   Author's Address  . . . . . . . . . . . . . . . . . . . . . . . .  27

1.  Introduction

   In order to help ensure interworking between presence systems that
   conform to the instant message / presence requirements [RFC2779], it
   is important to clearly define protocol mappings between such
   systems.  Within the IETF, work has proceeded on two presence
   technologies:

   o  Various extensions to the Session Initiation Protocol ([RFC3261])
      for presence, in particular [RFC3856]

   o  The Extensible Messaging and Presence Protocol (XMPP), which
      consists of a formalization of the core XML streaming protocols
      developed originally by the Jabber open-source community; the

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