VICIdial Contact Center Suite
Web based system for Computer Assisted Telephone Interviewing (CATI)
Enterprise telephony recording and retrieval system
H.323 Gatekeeper for VoIP and videconferencing
Cress is a comprehensive toolset for graphical service/workflow design
A command line utility for remote controlling Polycom VVX IP phones
Simple web interface for mapping CDR from VoIP provider to Asterisk
Java VoIP/SIP PBX system (replaced by jfPBX)
Microscopic AGI framework.
Fast CGI-based AsteriskPBX cluster administration tool.
JAvascript Voicexml InterpretER
A simple noise gate app intended for use with VOIPs like Skype.
Cyber-wrt pbx is embedded system in DD-Wrt router