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
Unified Communications Server
A simple noise gate app intended for use with VOIPs like Skype.
Java wrapper for the popular chat & VOIP service
Java VoIP Softphone (SIP) (replaced by jfPhone)
Skype language files for additonal languages (details below)
Modern, AI-Smart, WASTE p2p for ipv4, Tor and i2p + Voice Conference.
H.323 Gatekeeper for VoIP and videconferencing
VoIP/SIP Autodialer
Positional Audio Communication for Minecraft with Mumble
High performance, production quality STUN server and client library
A command line utility for remote controlling Polycom VVX IP phones
Respins of various open source PBX projects
Baresip is a modular SIP User-Agent with audio and video support
perl based SMDR/CDR capture & display on Web based PHP with mysql DB
Java VoIP/SIP PBX system (replaced by jfPBX)
Cisco IP Phone Inventory - Serial Number, MAC, Model, and more...
A P2P Messenger which uses JXTA. It provides secure RSA/AES end-to-end