VoIP SIP and SKINNY quality analyzer and packet / audio recording tool
H.323 Gatekeeper for VoIP and videconferencing
Callflow Sequence Diagram Generator
A command line utility for remote controlling Polycom VVX IP phones
An administration web interface for Mumble VoIP servers in PHP
Webface witch extract CDR (Call Detail Records) from MySQL base.
GSM L1-L3 stack with SIP network interfaces