simbox-app
simbox-app is an open-source calling & voip project written in JavaScript with 91 stars on GitHub.
The authors describe it as: “SimBox (GSM-SIP Crossplatform Gateway for Android/Unix/Windows).”
Category
Calling & VoIP
Type
Open source
Platform
JavaScript project
Pricing
Free / open source
GitHub stars
91
Last updated
2026-03-04
Top simbox-app alternatives
See the full list of simbox-app alternatives →
Frequently asked
What is simbox-app?
simbox-app is an open-source calling voip project written in JavaScript with 91 stars on GitHub. The authors describe it as: “SimBox (GSM-SIP Crossplatform Gateway for Android/Unix/Windows).”
Is simbox-app free?
simbox-app is open source — free to use; check its license for redistribution terms.
What are the best simbox-app alternatives?
The closest alternatives in the same category include Rocket.Chat, webtorrent, jitsi-meet, srs, neko — each has a live profile with facts and its own alternatives list on this hub.