A WebRTC-Enabled Chrome Extension for Seamless Call Center
Cellular manager for mobile phones/modems
Web based system for Computer Assisted Telephone Interviewing (CATI)
Enterprise telephony recording and retrieval system
Cress is a comprehensive toolset for graphical service/workflow design
An administration web interface for Mumble VoIP servers in PHP
A simple noise gate app intended for use with VOIPs like Skype.
Baresip is a modular SIP User-Agent with audio and video support