Web based system for Computer Assisted Telephone Interviewing (CATI)
The most affordable CRM system according to Capterra
Unified Communications Server
Enterprise telephony recording and retrieval system
H.323 Gatekeeper for VoIP and videconferencing
Linux GUI USSD Sender
Webface witch extract CDR (Call Detail Records) from MySQL base.
GNU Telephony Services and Applications
GSM L1-L3 stack with SIP network interfaces
Web interface for OpenSIPS