T.140 Text Conversation over Data Channels

Document Type Expired Internet-Draft (individual)
Authors Keith Drage  , Juergen Stoetzer-Bradler  , Albrecht Schwarz 
Last updated 2016-10-06 (latest revision 2016-04-04)
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document specifies how the ITU-T Protocol for multimedia application text conversation (Recommendation ITU-T T.140) can be instantiated as a data channel sub-protocol, using the SDP offer/answer exchange-based external negotiation defined in [I- D.ietf-mmusic-data-channel-sdpneg]. Two network configurations are documented: a WebRTC end-to-end configuration (connecting two T.140 over data channel endpoints), and a gateway configuration (connecting an T.140 over data channel endpoint with an T.140 over RTP/UDP endpoint).


Keith Drage (keith.drage@nokia.com)
Juergen Stoetzer-Bradler (juergen.stoetzer-bradler@nokia.com)
Albrecht Schwarz (albrecht.schwarz@nokia.com)

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