Jitsi - Open Source Video Calls and Chat
Secure video calls, conferencing, chat, desktop sharing, file transfer, support for your favorite OS, and IM network. All this, and more, in Jitsi - the most complete and advanced open source communicator.
Jitsi (previously SIP Communicator) is an audio/video and chat communicator that supports protocols such as
SIP, XMPP/Jabber, AIM/ICQ, Windows Live, Yahoo! and many other useful features.
Работает на маках линуксах и форточках
http://jitsi.org
Качайте бразы ибо скайпу уже нельзя доверять