MSRP over WebRTC data channels

Document Type Expired Internet-Draft (individual)
Authors Jerome Marcon  , Richard Ejzak 
Last updated 2014-01-09 (latest revision 2013-07-08)
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


The Real-Time Communication in WEB-browsers (RTCWeb) working group is charged to provide protocols to support direct interactive rich communication using audio, video, and data between two peers' web- browsers. For the support of data communication, the RTCWeb working group has in particular defined the concept of bi-directional data channels over SCTP, where each data channel might be used to transport other protocols, called sub-protocols. This document specifies how the Message Session Relay Protocol (MSRP) can be instantiated as a WebRTC data channel sub-protocol, using the SDP offer/exchange to negotiate out-of-band the sub-protocol specific parameters. Two network configurations are documented: a WebRTC end- to-end configuration (connecting two MSRP over data channel endpoints), and a gateway configuration (connecting an MSRP over data channel endpoint with an MSRP over TCP endpoint).


Jerome Marcon (
Richard Ejzak (

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