A domain based multi-tenant PBX & voice switch for FreeSWITCH
VoIP SIP and SKINNY quality analyzer and packet / audio recording tool
VICIdial Contact Center Suite
Open source Fax server software for inbound / outbound internet Faxing
Web based system for Computer Assisted Telephone Interviewing (CATI)
Cellular manager for mobile phones/modems
The most affordable CRM system according to Capterra
Unified Communications Server
Project about FusionPBX on Live Medium
Enterprise telephony recording and retrieval system
Multi user address book application accessable through the web.
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