Update 2014-01-29: RFC7118 has now been officially published. The full specification can be found on the IETF Tools site.
WebRTC developers rejoice! Yesterday, the IETF assigned an RFC number to the SIP WebSocket specification, a drafted document to standardize transporting SIP signaling using HTML5's realtime WebSocket API. The new document, The WebSocket Protocol as a Transport for the Session Initiation Protocol (SIP), will be published as RFC7118.
This is big news for WebRTC developers. WebRTC is a free, open source project that enables browsers with Real-Time Communications. When building an application with real time communications, however, one of the first things developers realize is that while WebRTC provides a high quality media stack right in your browser, it does not mandate a certain signaling protocol. This leaves application developers to research many complex protocols or to write their own homegrown signaling.