Speaking of alternatives to G.722, a startup called Voxygen is delivering a free, private push-to-talk-service called Babbelon.  The concept isn’t new, but it uses Skype’s SILK “super wideband” audio codec and is hosted over on Rackspace.

Babbelon is a browser-based VoIP chat tool and provides a “massively” multi-user VoIP service; according to the press release, Babbleon can [...]