Library for parsing and validating international phone numbers
Unified Communications Server
Java VoIP Softphone (SIP) (replaced by jfPhone)
Online Internet Phone Call Center Software For Telesales Team
H.323 Gatekeeper for VoIP and videconferencing
Samples and wrappers around the Bria desktop API
Chat with your friends everywhere, whether you are in space or on eart
Cyber-wrt pbx is embedded system in DD-Wrt router
OpenSource Call Center and Dialer System
Padrão de comunicação VOIP.
A suite of open-source tools and frameworks for creating SIP apps