JsSIP

JsSIP

JsSIP is an open source JavaScript SIP library for web developers. It enables voice/video calls, instant messaging, and presence integration into web apps with just a few lines of code. It supports SIP over WebSocket and works well with Asterisk, Kamailio, FreeSWITCH and more.
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JsSIP alternatives ➤

JsSIP: Open Source JavaScript SIP Library for Web Developers

JsSIP is an open source JavaScript SIP library for web developers. It enables voice/video calls, instant messaging, and presence integration into web apps with just a few lines of code. It supports SIP over WebSocket and works well with Asterisk, Kamailio, FreeSWITCH and more.

What is JsSIP?

JsSIP is an open source JavaScript library that enables real-time communications over the SIP protocol directly from web browsers. Developed specifically for web developers, JsSIP allows integrating voice, video, chat, and presence into web applications with just JavaScript and web APIs.

Some key features of JsSIP include:

  • Supports SIP over WebSocket, making it easy to connect browsers to SIP servers/PBXs
  • Full SIP protocol support for registering users, making calls, instant messaging etc.
  • Plugin architecture for adding extra features like media recording, encryption etc.
  • Works seamlessly with popular VoIP servers like Asterisk, FreeSWITCH, Kamailio etc.
  • Extensive documentation and demos for getting started quickly
  • Open source under the MIT license

JsSIP is useful for creating web phone apps, browser-based softphones, web conferencing solutions, VoIP clients, and any other web application where real-time SIP-based communications is required. It abstracts away the complexities of SIP, WebSockets, and web media APIs, making it easy for any web developer to integrate these capabilities.

JsSIP Features

Features

  1. SIP over WebSocket support
  2. Audio/video calls
  3. Instant messaging
  4. Presence integration
  5. NAT traversal
  6. 100% JavaScript
  7. No browser plugins required
  8. Modular architecture
  9. Extensive documentation

Pricing

  • Open Source

Pros

Open source

Easy to integrate into web apps

Wide browser support

Active development community

Works with major SIP servers

Scalable

Cons

Limited native mobile support

Steeper learning curve than some alternatives

Can be resource intensive for very large deployments

Official Links

Official Website
https://github.com/versatica/JsSIP

The Best JsSIP Alternatives

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