Framework of requirements for real-time text conversation using SIP

Document Type Expired Internet-Draft (individual)
Authors Gunnar Hellstrom  , Arnoud Van Wijk  , Radhika Roy 
Last updated 2004-02-17 (latest revision 2004-02-16)
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document provides the framework of requirements for text conversation with real time character-by-character interactive flow over the IP network using the Session Initiation Protocol. The requirements for general real-time text-over-IP telephony, point-to- point and conference calls, transcoding, relay services, user mobility, interworking between text-over-IP telephony and existing text-telephony, and some special features including instant messaging have been described.


Gunnar Hellstrom (
Arnoud Van Wijk (
Radhika Roy (

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