Browse free open source VoIP software and projects 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
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.
Java wrapper for the popular chat & VOIP service
Browse on Tor/i2p, Anon p2p Chat / FileTx, Conf / Video VoIP
OpenSource Call Center and Dialer System
http://www.vaakpbx.com
Java VoIP Softphone (SIP) (replaced by jfPhone)
Modern, AI-Smart, WASTE p2p for ipv4, Tor and i2p + Voice Conference.
High performance, production quality STUN server and client library
H.323 Gatekeeper for VoIP and videconferencing
This is a PBX dashboard showing the peer,queue,agent at real time
Cisco IP Phone Inventory - Serial Number, MAC, Model, and more...
For more VoIP resources for business, take a look at the business VoIP category.