Crocodile RCS has contributed MSRP and SIP over WebSocket support to Kamailio, as well as authoring the draft for MSRP over WebSocket. The talk will contain: * An short introduction to the WebSocket protocol * Brief descriptions of how draft-ietf-sipcore-sip-websocket has updated RFC 3261, and draft-pd-msrp-websocket has updated RFC 4975 and RFC 4976 * Live demonstration of an open-source browser based SIP user-agent built on Javascript libraries for SIP over WebSocket, MSRP over WebSocket, and JSEP, routing calls, instant messages, and file transfers through Kamailio * Time dependant: a look at how the use of open-source libraries and SDKs can be used by web-developers to create real-time communication applications without the need to learn or understand the details of real time session establishment and management.