Most of us have been using voice chat in messengers for very long. It is indeed an excellent way of talking to your friends and relatives for free. But obviously the better option would be if we could make Free Pc to Phone calls.
There is this site called Gizmocall where you can register for free. After free registration you can make 10 minutes of Free Pc to phone calls anywhere in the world to most landlines and mobiles. And the nice part about it is that You get 10 minutes of Free Calling Everyday, not just once. After you register you just have to download a flash plug-in and you are ready to make free calls. But there is just one restriction, the maximum call duration can be only 3 min/call. The voice clarity is very good. You just need a microphone to make your calls.