I would point you toward Jitsi: http://en.wikipedia.org/wiki/Jitsi http://en.wikipedia.org/wiki/Jitsi But, it doesn't support the Skype protocol, and it runs o

I would point you toward Jitsi: http://en.wikipedia.org/wiki/Jitsi http://en.wikipedia.org/wiki/Jitsi But, it doesn't support the Skype protocol, and it runs on Java, with which some people have an issue (but also allows for cross-platform compatibility).