VoIP/SIP SoftPhone (formerly known as jphonelite)
Jitsi is an audio/video and chat communicator that supports protocols
Unified Communications System - PBX System
Java VoIP Softphone (SIP) (replaced by jfPhone)
A Better PBX For Your Business
camerubuntu-phone-14.04 est un système ubuntu avec téléphonie IP
SIP softphone
camerubuntu-phone-12.04 est un système ubuntu avec téléphonie IP.