“In a crowded and competitive VoIP marketplace, yakForFree is distinguished by its free video capabilities and ease-of-use. By downloading the free Virtual VideoPhone, which takes less than a minute, users can make free calls over the Internet using a high-speed connection.”
This has been in the making for most of the year with CounterPath (formerly XTen) providing the eyeBeam softphone that handles SIP and video. The feature set offered in the various Yak products suggests an Asterisk backend. There is at least one report of configuring Asterisk to use the Yak service. I’m going to try this out, so if anyone wants to test, drop me a note.