VoIP SIP and SKINNY quality analyzer and packet / audio recording tool
Browse on Tor / i2p - Anon p2p Chat / FileTx, Conf / Video VoIP
High performance, production quality STUN server and client library
SIP softphone
H.323 Gatekeeper for VoIP and videconferencing
SIP Video Multiconference Media Server with WebRTC support.
Positional Audio Communication for Minecraft with Mumble
GSM L1-L3 stack with SIP network interfaces