Matrix reference homeserver
Issabel PBX - Unified Communications
VoIP SIP and SKINNY quality analyzer and packet / audio recording tool
Open source Fax server software for inbound / outbound internet Faxing
SMS, Fax, Voice Broadcasting and auto dialer Software
A WebRTC-Enabled Chrome Extension for Seamless Call Center
ICTCore: Unified Communications Framework for web developers
Unified Communications Server
Unified Communications System - PBX System
Asterisk based VoIP pbx appliance
Ein Mumble-Server-Webinterface, das in PHP geschrieben wurd
Accent interfaces and controls systems through goals and policies
http://www.vaakpbx.com
SIP Video Multiconference Media Server with WebRTC support.
A command line utility for remote controlling Polycom VVX IP phones
Simple web interface for mapping CDR from VoIP provider to Asterisk
An administration web interface for Mumble VoIP servers in PHP