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The WebSocket Protocol as a Transport for the Session Initiation Protocol (SIP)

Document type: Replaced Internet-Draft (individual)
Document stream: No stream defined
Last updated: 2012-10-10 (latest revision 2012-04-16)
Intended RFC status: Unknown
Other versions: (expired, archived): plain text, pdf, html

Stream State:No stream defined
Document shepherd: No shepherd assigned

IESG State: Replaced by draft-ietf-sipcore-sip-websocket
Responsible AD: (None)
Send notices to: No addresses provided

This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found here:


The WebSocket protocol enables two-way realtime communication between clients and servers. This document specifies a new WebSocket sub- protocol as a reliable transport mechanism between SIP (Session Initiation Protocol) entities and enables usage of the SIP protocol in new scenarios.


Inaki Castillo <>
Jose Millan <>
Victor Pascual <>

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