HEATKEYS

SourceForge.net. Fast, secure and free downloads from the largest Open Source applications and software directory

RadiSys Corporation is a global leader in telecommunications.

A VOIP gatekeeper for H.323. Build your own VOIP or video conferecing system with free H.323 software.

Best in class telephony software for developers. Includes SS7, ISDN, and Diameter Protocol Stacks and APIs, SDKs, Librarys and Frameworks.

VTCTalk.com is a forum dedicated to videoconferencing equipment, video conferencing systems and videoconference software for e.g. distance learning, multipoint videoconferencing, video teleconferencing and telemedicine.

The H.323 Global Network (HGN) serves as the hub in a global, fully-federated IP-based multimedia communication network that allows users to place calls to each other for free using voice and video.

Welcome to voip.about.com, your guide site to everything Voice Over IP, also called VoIP, IP Telephony or Internet Telephony. Learn how to make free or cheap local and international calls using your PC or phone. Stay updated on VoIP hows and whats, V...

H.323 Plus (or, H323plus) is the home of the most advanced open source H.323 system in the world, with a following of world-class software developers working to deliver truly superior multimedia communication systems.

WildPackets is the leading provider of network, VoIP, and application performance monitoring, analysis, and troubleshooting solutions.