VoIP/SIP SoftPhone (formerly known as jphonelite)
The point is an convenience
Unified Communications Server
Java VoIP Softphone (SIP) (replaced by jfPhone)
Low-latency, high quality voice chat for gamers
H.323 Gatekeeper for VoIP and videconferencing
Chat with your friends everywhere, whether you are in space or on eart
Cyber-wrt pbx is embedded system in DD-Wrt router
OpenSource Call Center and Dialer System