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 wrapper for the popular chat & VOIP service
Modern, AI-Smart, WASTE p2p for ipv4, Tor and i2p + Voice Conference.
Respins of various open source PBX projects
H.323 Gatekeeper for VoIP and videconferencing
Baresip is a modular SIP User-Agent with audio and video support
A P2P Messenger which uses JXTA. It provides secure RSA/AES end-to-end
High performance, production quality STUN server and client library
Positional Audio Communication for Minecraft with Mumble
An administration web interface for Mumble VoIP servers in PHP
vTiger Freeswitch PBX Integration
CMS API Server with web site