Open source Fax server software for inbound / outbound internet Faxing
Enterprise telephony recording and retrieval system
H.323 Gatekeeper for VoIP and videconferencing
Cress is a comprehensive toolset for graphical service/workflow design
Java VoIP/SIP PBX system (replaced by jfPBX)
JAvascript Voicexml InterpretER
Universal Framework to audit Voip protocols's security
Send Asterisk CDR to serial device
Optimized and cross platform SMPTE 2022 FEC library in C, Python, Java
A suite of open-source tools and frameworks for creating SIP apps