The most affordable CRM system according to Capterra
Unified Communications Server
Unified Communications System - PBX System
This is a PBX dashboard showing the peer,queue,agent at real time
Asterisk based VoIP pbx appliance
VozBox. Asterisk VoIP PBX.
Cyber-wrt pbx is embedded system in DD-Wrt router
Asterisk module to route traffic (very obsolete)
Extend vTiger CRM to add FreeSWITCH support