versatica/JsSIP

JsSIP, the JavaScript SIP library observed · 2026-08-28

github.com/versatica/JsSIP · homepage · JavaScript · NOASSERTION (other) observed · 2026-08-28

Health v2 · maintenance only

69/100

Activity 81
Release rhythm 35
Longevity 100

Flags: no_releases no_license

How is this computed?

round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-02. Adoption (stars, forks) is never an input.

gap_med: n/a
age_days: 5168
days_rel: n/a
days_push: 119
n_releases_24m: 0

Full methodology

Adoption not part of the score

2599 stars · 792 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

JsSIP is a pure JavaScript SIP (Session Initiation Protocol) library that implements a full SIP user agent for browsers and Node.js. It supports SIP over WebSocket transport (RFC 7118), WebRTC audio/video calls, and instant messaging, interoperating with servers like Kamailio, Asterisk, and reSIProcate.

Use cases

build a browser-based SIP softphone with WebRTC audio/video calls
add SIP calling and messaging to a web application
connect a web app to an Asterisk or Kamailio SIP server over WebSocket
implement SIP instant messaging (MESSAGE) in JavaScript
create a click-to-call widget on a website
run a SIP client in Node.js

When to choose

you need real SIP signaling (RFC 3261) in the browser without plugins
your SIP infrastructure supports or can proxy SIP over WebSocket
you want a lightweight, well-documented client-side SIP stack with WebRTC media
you need to build custom SIP logic with a flexible event-driven API

When to avoid

your SIP server lacks WebSocket transport support and you cannot add a WebSocket-capable proxy
you need a turnkey softphone UI rather than a library to build one
you need non-JavaScript environments or native mobile SIP without a WebView
you need server-side media processing (consider mediasoup or a media server instead)

Facets

library · maturity stable

websocket http-client sdk web-development apis frontend browser sip webrtc voip sip-over-websocket instant-messaging telephony rfc3261 rfc7118 user-agent audio-video-calls real-time nodejs javascript

10 sources

readme: https://github.com/versatica/JsSIP · fetched 2026-08-28 · 1c1a96953d0c
homepage: https://jssip.net · fetched 2026-08-29 · 48f6c17b5a13
site_page: https://jssip.net/documentation · fetched 2026-08-29 · 13e7a5a8e9a6
site_page: https://jssip.net/documentation/faq · fetched 2026-08-29 · 96e55409a665
site_page: https://jssip.net/documentation/misc/sip_websocket · fetched 2026-08-29 · 89432d397f2e
site_page: https://jssip.net/documentation/misc/webrtc · fetched 2026-08-29 · ba5aab127190
site_page: https://jssip.net/documentation/misc/interoperability · fetched 2026-08-29 · 3b2062cae393
site_page: https://jssip.net/documentation/overview · fetched 2026-08-29 · 96adbcd59080
site_page: https://jssip.net/documentation/api · fetched 2026-08-29 · e2ea19f353d9
site_page: https://jssip.net/documentation/getting_started · fetched 2026-08-29 · 6ffeae5e1b16

Member repositories

Repository	Role	Health v2
versatica/JsSIP	main	69

For agents

markdown · JSON · MCP: product_card(name="versatica/JsSIP")

Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem