Browse free open source VoIP software and projects for Mac below. Use the toggles on the left to filter open source VoIP software by OS, license, language, programming language, and project status.
Issabel PBX - Unified Communications
A simple noise gate app intended for use with VOIPs like Skype.
Unified Communications Server
Java VoIP Softphone (SIP) (replaced by jfPhone)
VoIP/SIP Autodialer
Modern, AI-Smart, WASTE p2p for ipv4, Tor and i2p + Voice Conference.
High performance, production quality STUN server and client library
Java VoIP/SIP PBX system (replaced by jfPBX)
Positional Audio Communication for Minecraft with Mumble
An administration web interface for Mumble VoIP servers in PHP
H.323 Gatekeeper for VoIP and videconferencing
Cisco IP Phone Inventory - Serial Number, MAC, Model, and more...
Baresip is a modular SIP User-Agent with audio and video support
Respins of various open source PBX projects