Yeah I didn't catch that earlier. For 2 way skype is the easiest.
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ooVoo up to 12 friends for free.
http://www.oovoo.com/home.aspx
They've been around a long time and keep trying to change their business model without making a dent in Skype.
I wish I could +1 this right now. Going to check it out today. Good call cseeman.
Cseeman:
I have never had much luck with oovoo. From peoples recommendation I have checked out Zoom.us and im impressed.
Several vendors are sneaking up on wideband audio and video. Some examples are Blink/SIP2SIP through http://sip2sip.info, TeamSpeak, Zoom.us, and Bria. For now, Skype is king, but things may be getting ready to move around a little bit.