Hello! We have a project, called VMukti, which is open-source and free. You can take a look here to see what's all about: http://www.vmukti.com/ What do we need: well, being an open-source software, we need community support so we can develop it further. So please vote us on SourceForge: http://www.vmukti.com/latest-news/vmukti-calls-on-community-to-win-prestigious-award.html A little presentation of the project: VMukti is a Free, innovative, multi-point total communications, collaboration and conferencing engine with built-in support for access to platform features through Personal Customizable Web Interface, Widgets for 3rd party websites, Desktops, and PSTN/ Mobile/ IP Phones. The core Platform Features Include: Audio/ Telephony, Multipoint Video, Chat, File Search, Whiteboard, File-sharing, Presentation, Remote Monitoring & Controlling, Co-authoring, CRM, and more In other words VMukti for you could be: A Simple Distributed VOIP Unified Communication PBX Network Software A Rich Media Collaboration enabled Social Networking Software A P2P Based Video Conferencing/ Web Meeting Platform A Mashable Communication Platform that allows extending by development of 3rd party Widgets VMukti is built using next generation .NET 3.0/ 3.5 technologies including WPF, WCF, IPv6 and P2P. And Best of all it is Open Source. Thank you for support!