JsSIP - the Javascript SIP libraryJsSIP: The JavaScript SIP Library Runs in the browser and Node.js SIP over WebSocket (use real SIP in your web apps) Audio/video calls (WebRTC) and instant messaging Lightweight! 100% pure JavaScript built from the ground up Easy to use and powerful user API Works with OverSIP, Kamailio, Asterisk, OfficeSIP and more (more info) Written by the authors of RFC 7118 and OverSIP
