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
Unified Communications Server
A simple noise gate app intended for use with VOIPs like Skype.
H.323 Gatekeeper for VoIP and videconferencing
An administration web interface for Mumble VoIP servers in PHP
High performance, production quality STUN server and client library
Open source Fax server software for inbound / outbound internet Faxing
Callflow Sequence Diagram Generator
Cisco IP Phone Inventory - Serial Number, MAC, Model, and more...
A plugin for Teamspeak3. This plugin allows you to autofollow a user.
Baresip is a modular SIP User-Agent with audio and video support
Java VoIP/SIP PBX system (replaced by jfPBX)