Framework for Transcoding with the Session Initiation Protocol

Document Type Expired Internet-Draft (individual)
Last updated 2003-08-29
Stream (None)
Intended RFC status (None)
Expired & archived
plain text pdf html
Stream Stream state (No stream defined)
Document shepherd No shepherd assigned
IESG IESG state Expired
Telechat date
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document defines a framework for transcoding with SIP. This framework includes how to discover the need of transcoding services in a session and how to invoke those transcoding services. Two models for transcoding services invocation are discussed; the conference bridge model and the third party call control model. Both models meet the requirements for SIP regarding transcoding services invocation to support deaf, hard of hearing and speech-impaired individuals.


Gonzalo Camarillo (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)