Browse free open source Internet Phone software and projects below. Use the toggles on the left to filter open source Internet Phone software by OS, license, language, programming language, and project status.
Low-latency, high quality voice chat for gamers
Unified Communications Server
H.323 Gatekeeper for VoIP and videconferencing
Chat with your friends everywhere, whether you are in space or on eart
Cyber-wrt pbx is embedded system in DD-Wrt router