[![][npm-shield-jssip]][npm-jssip]
[![][github-actions-shield-jssip]][github-actions-jssip]

<p align="center"><a href="https://jssip.net"><img src="https://jssip.net/images/jssip-banner-new.png"/></a></p>

## Overview

* Runs in the browser and Node.js
* SIP over [WebSocket](https://jssip.net/documentation/misc/sip_websocket/) (use real SIP in your web apps)
* Audio/video calls ([WebRTC](https://jssip.net/documentation/misc/webrtc)) and instant messaging
* Lightweight!
* Easy to use and powerful user API
* Works with Kamailio, Asterisk. Mobicents and repro (reSIProcate) servers ([more info](https://jssip.net/documentation/misc/interoperability))
* Written by the authors of [RFC 7118 "The WebSocket Protocol as a Transport for SIP"](https://tools.ietf.org/html/rfc7118) and [mediasoup](https://mediasoup.org)


## Website and Documentation

[jssip.net](https://jssip.net/)


## Install

```bash
$ npm install jssip
```


## Getting Started

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

```javascript
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](https://tryit.jssip.net)


## Support

* For questions or usage problems please use [Github discussions](https://github.com/versatica/JsSIP/discussions).

* For bug reports or feature requests open an [Github issue](https://github.com/versatica/JsSIP/issues).


## Authors

#### José Luis Millán

* Main author. Core Designer and Developer.
* <jmillan@aliax.net> (Github [@jmillan](https://github.com/jmillan))

#### Iñaki Baz Castillo

* Core Designer and Developer.
* <ibc@aliax.net> (Github [@ibc](https://github.com/ibc))

#### Saúl Ibarra Corretgé

* Core Designer.
* <saghul@gmail.com> (Github [@saghul](https://github.com/saghul))


## License

JsSIP is released under the [MIT license](https://jssip.net/license).

[npm-shield-jssip]: https://img.shields.io/npm/v/jssip.svg
[npm-jssip]: https://npmjs.org/package/jssip
[github-actions-shield-jssip]: https://github.com/versatica/jssip/actions/workflows/jssip.yaml/badge.svg
[github-actions-jssip]: https://github.com/versatica/jssip/actions/workflows/jssip.yaml