Plan B: a proposal for signaling multiple media sources in WebRTC.

Document Type Expired Internet-Draft (individual)
Author Justin Uberti 
Last updated 2013-11-04 (latest revision 2013-05-02)
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document explains how multiple media sources can be signaled in WebRTC using SDP, in a fashion that avoids many common problems and provides a simple control surface to the receiver.


Justin Uberti (

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