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A Watcher Information Event Template-Package for the Session Initiation Protocol (SIP) (RFC3857)

IP.com Disclosure Number: IPCOM000030839D
Original Publication Date: 2004-Aug-01
Included in the Prior Art Database: 2004-Aug-28
Document File: 21 page(s) / 46K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

J. Rosenberg: AUTHOR

Abstract

This document defines the watcher information template-package for the Session Initiation Protocol (SIP) event framework. Watcher information refers to the set of users subscribed to a particular resource within a particular event package. Watcher information changes dynamically as users subscribe, unsubscribe, are approved, or are rejected. A user can subscribe to this information, and therefore learn about changes to it. This event package is a template-package because it can be applied to any event package, including itself.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 6% of the total text.

Network Working Group                                       J. Rosenberg

Request for Comments: 3857                                   dynamicsoft

Category: Standards Track                                    August 2004

           A Watcher Information Event Template-Package for

                 the Session Initiation Protocol (SIP)

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 (2004).

Abstract

   This document defines the watcher information template-package for

   the Session Initiation Protocol (SIP) event framework.  Watcher

   information refers to the set of users subscribed to a particular

   resource within a particular event package.  Watcher information

   changes dynamically as users subscribe, unsubscribe, are approved, or

   are rejected.  A user can subscribe to this information, and

   therefore learn about changes to it.  This event package is a

   template-package because it can be applied to any event package,

   including itself.

Rosenberg                   Standards Track                     [Page 1]

RFC 3857                  Watcher Information                August 2004

Table of Contents

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

   2.   Terminology .........................................    3

   3.   Usage Scenarios .....................................    3

        3.1.  Presence Authorization ........................    4

        3.2.  Blacklist Alerts ..............................    5

   4.   Package Definition ..................................    5

        4.1.  Event Package Name ............................    5

        4.2.  Event Package Parameters ......................    5

        4.3.  SUBSCRIBE Bodies ..............................    6

        4.4.  Subscription Duration .........................    6

        4.5.  NOTIFY Bodies .................................    7

        4.6.  Notifier Processing of SUBSCRIBE Requests......    7

        4.7.  Notifier Generation of NOTIFY Requests ........    8

              4.7.1.  The Subscription State Machine.........    9

              4.7.2.  Applying the State Machine.............   11

        4.8.  Subscriber Processing of NOTIFY Requests ......   12

    ...