http://ping.fm/dptT6
Google has officially announced the VoIP call feature form your Gmail Chat to any Phone number world wide. This Google Voice calls and video chat were already present from Gmail, but it was possible only two people connected to Gmail. Now this new features enable you can make call to any phone number all over the world, instead of calling a Google account holder. But this Google VoIP service is free only in U.S and Canada.