Browse free open source VoIP software and projects for BSD below. Use the toggles on the left to filter open source VoIP software by OS, license, language, programming language, and project status.
VoIP SIP and SKINNY quality analyzer and packet / audio recording tool
A simple noise gate app intended for use with VOIPs like Skype.
Unified Communications Server
A command line utility for remote controlling Polycom VVX IP phones
Cisco IP Phone Inventory - Serial Number, MAC, Model, and more...
H.323 Gatekeeper for VoIP and videconferencing
VoIP/SIP Autodialer
Java VoIP/SIP PBX system (replaced by jfPBX)
Baresip is a modular SIP User-Agent with audio and video support
High performance, production quality STUN server and client library
An administration web interface for Mumble VoIP servers in PHP
A plugin for Teamspeak3. This plugin allows you to autofollow a user.
Open source Fax server software for inbound / outbound internet Faxing