Issabel PBX - Unified Communications
Unified Communications Server
Unified Communications System - PBX System
Java VoIP Softphone (SIP) (replaced by jfPhone)
VoIP/SIP Autodialer
Accent interfaces and controls systems through goals and policies
Java VoIP/SIP PBX system (replaced by jfPBX)
Baresip is a modular SIP User-Agent with audio and video support
This project has been relocated to http://github.com/sippy/rtpproxy h
Web interface for OpenSIPS