PHP version of Google's phone number handling library
VICIdial Contact Center Suite
Web based system for Computer Assisted Telephone Interviewing (CATI)
The most affordable CRM system according to Capterra
Unified Communications Server
Webface witch extract CDR (Call Detail Records) from MySQL base.
Cyber-wrt pbx is embedded system in DD-Wrt router
BD BLACK HAT HACKERS SMS & Email Spoofer
OpenSource Call Center and Dialer System
Graph active VoIP calls on Google Maps.
CRM system based on vtiger, adapted to Polish companies.