Unified Communications Server
test file
Low-latency, high quality voice chat for gamers
H.323 Gatekeeper for VoIP and videconferencing
Samples and wrappers around the Bria desktop API
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
A suite of open-source tools and frameworks for creating SIP apps
GSM L1-L3 stack with SIP network interfaces