Transcoding Services Invocation in the Session Initiation Protocol Using Third Party Call Control

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Last updated 2003-08-29
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document describes how to invoke transcoding services using 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.


Gonzalo Camarillo (

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