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An INVITE-Initiated Dialog Event Package for the Session Initiation Protocol (SIP) (RFC4235)

IP.com Disclosure Number: IPCOM000131959D
Original Publication Date: 2005-Nov-01
Included in the Prior Art Database: 2005-Nov-24
Document File: 40 page(s) / 83K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

J. Rosenberg: AUTHOR [+4]

Abstract

This document defines a dialog event package for the SIP Events architecture, along with a data format used in notifications for this package. The dialog package allows users to subscribe to another user and to receive notification of the changes in state of INVITE- initiated dialog usages in which the subscribed-to user is involved.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 3% of the total text.

Network Working Group                                       J. Rosenberg
Request for Comments: 4235                                 Cisco Systems
Category: Standards Track                                 H. Schulzrinne
                                                     Columbia University
                                                            R. Mahy, Ed.
                                                            SIP Edge LLC
                                                           November 2005


            An INVITE-Initiated Dialog Event 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 01) for the standardization state
   and status of this protocol.  Distribution of this memo is unlimited.

Copyright Notice

   Copyright (C) The Internet Society (2005).

Abstract

   This document defines a dialog event package for the SIP Events
   architecture, along with a data format used in notifications for this
   package.  The dialog package allows users to subscribe to another
   user and to receive notification of the changes in state of INVITE-
   initiated dialog usages in which the subscribed-to user is involved.

Table of Contents

   1. Introduction ....................................................3
   2. Terminology .....................................................4
   3. Dialog Event Package ............................................4
      3.1. Event Package Name .........................................4
      3.2. Event Package Parameters ...................................4
      3.3. SUBSCRIBE Bodies ...........................................5
      3.4. Subscription Duration ......................................6
      3.5. NOTIFY Bodies ..............................................6
      3.6. Notifier Processing of SUBSCRIBE Requests ..................7
      3.7. Notifier Generation of NOTIFY Requests .....................8
           3.7.1. The Dialog State Machine ............................8
           3.7.2. Applying the State Machine .........................11

Rosenberg, et al.           Standards Track                     [Page 1]
RFC 4235                     Dialog Package                November 2005


      3.8. Subscri...