WebSocket Transport for Session Initiation Protocol (SIP)

Document Type Replaced Internet-Draft (individual)
Last updated 2011-11-28 (latest revision 2011-09-13)
Replaced by draft-ibc-sipcore-sip-websocket
Stream (None)
Intended RFC status (None)
Expired & archived
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Stream Stream state (No stream defined)
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RFC Editor Note (None)
IESG IESG state Replaced by draft-ibc-sipcore-sip-websocket
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This Internet-Draft is no longer active.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 a WebSocket subprotocol for a new transport in SIP (Session Initiation Protocol). The WebSocket protocol enables two-way realtime communication between clients (typically web-based applications) and servers. The main goal of this specification is to integrate the SIP protocol within web applications.


Jose Millan (jmillan@aliax.net)
Inaki Castillo (ibc@aliax.net)
Victor Pascual (vpascual@acmepacket.com)

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