Overview

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!
Easy to use and powerful user API
Works with Kamailio, Asterisk. Mobicents and repro (reSIProcate) servers (more info)
Written by the authors of RFC 7118 "The WebSocket Protocol as a Transport for SIP" and mediasoup

Website and Documentation

Install

$ npm install jssip

Getting Started

The following simple JavaScript code creates a JsSIP User Agent instance and makes a SIP call:

var socket = new JsSIP.WebSocketInterface('wss://sip.myhost.com');
var configuration = {
  sockets  : [ socket ],
  uri      : 'sip:alice@example.com',
  password : 'superpassword'
};

var ua = new JsSIP.UA(configuration);

ua.start();

// Register callbacks to desired call events
var eventHandlers = {
  'progress': function(e) {
    console.log('call is in progress');
  },
  'failed': function(e) {
    console.log('call failed with cause: '+ e.data.cause);
  },
  'ended': function(e) {
    console.log('call ended with cause: '+ e.data.cause);
  },
  'confirmed': function(e) {
    console.log('call confirmed');
  }
};

var options = {
  eventHandlers,
  mediaConstraints: { 'audio': true, 'video': true }
};

var session = ua.call('sip:bob@example.com', options);

Want to see more? Check the full documentation at https://jssip.net/documentation/.

Online Demo

tryit.jssip.net

Support

For questions or usage problems please use Github discussions.
For bug reports or feature requests open an Github issue.

Authors

José Luis Millán

Main author. Core Designer and Developer.
jmillan@aliax.net (Github @jmillan)

Iñaki Baz Castillo

Core Designer and Developer.
ibc@aliax.net (Github @ibc)

Saúl Ibarra Corretgé

Core Designer.
saghul@gmail.com (Github @saghul)

License

JsSIP is released under the MIT license.

JsSIP

Install / Use

README