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Transcoding Services Invocation in the Session Initiation Protocol (SIP) Using Third Party Call Control (3pcc) (RFC4117)

IP.com Disclosure Number: IPCOM000126010D
Original Publication Date: 2005-Jun-01
Included in the Prior Art Database: 2005-Jun-28
Document File: 20 page(s) / 38K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

G. Camarillo: AUTHOR [+4]

Abstract

This document describes how to invoke transcoding services using Session Initiation Protocol (SIP) and third party call control. This way of invocation meets the requirements for SIP regarding transcoding services invocation to support deaf, hard of hearing and speech-impaired individuals.

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

Network Working Group                                       G. Camarillo
Request for Comments: 4117                                      Ericsson
Category: Informational                                        E. Burger
                                                              Brooktrout
                                                          H. Schulzrinne
                                                     Columbia University
                                                             A. van Wijk
                                                                 Viataal
                                                               June 2005


                  Transcoding Services Invocation in
                 the Session Initiation Protocol (SIP)
                 Using Third Party Call Control (3pcc)

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) The Internet Society (2005).

Abstract

   This document describes how to invoke transcoding services using
   Session Initiation Protocol (SIP) and third party call control.  This
   way of invocation meets the requirements for SIP regarding
   transcoding services invocation to support deaf, hard of hearing and
   speech-impaired individuals.

Table of Contents

   1. Introduction ....................................................2
   2. General Overview ................................................2
   3. Third Party Call Control Flows ..................................2
      3.1. Terminology ................................................3
      3.2. Callee's Invocation ........................................3
      3.3. Caller's Invocation ........................................8
      3.4. Receiving the Original Stream ..............................8
      3.5. Transcoding Services in Parallel ..........................10
      3.6. Multiple Transcoding Services in Series ...................14
   4. Security Considerations ........................................16
   5. Normative References ...........................................17
   6. Informative References .........................................17


Camarillo, et al.            Informational                      [Page 1]
RFC 4117            ...