The first messaging platform operating without user identifiers
Wire for iOS (iPhone and iPad)
A JavaScript client library for integrating multi-party communications
VoIP SIP and SKINNY quality analyzer and packet / audio recording tool
Search, Download, Play, Share on Bittorrent and the cloud
VoIP/SIP SoftPhone (formerly known as jphonelite)
A LinuxSampler Qt GUI Interface
UFONet - Denial of Service Toolkit
Cerberus Content Management System
Booking/reservation of meeting rooms/equipment with e-mail invitations
Unified Communications System - PBX System
Lightning fast peer-to-peer cross-platform messenger
Jitsi is an audio/video and chat communicator that supports protocols
Control your Frontier-Silicon Radio Devices from Windows Desktop
Low-latency, high quality voice chat for gamers
Distributed audio player
AEBL is a mobile media distribution system
Accent interfaces and controls systems through goals and policies
Enterprise telephony recording and retrieval system
A free peer-to-peer (P2P) BitTorrent file sharing client
Callflow Sequence Diagram Generator
A multifeatured virtual webcam software to broadcast over the Internet
Invitation only live encrypted webchat