Free Voice Calls With Facebook http://snapvoip.blogspot.com/
|"i" top right hand corner|
If you have the latest Facebook’s Messenger app and provided that you are in U.S.A, you can place voice calls over WiFi.
So how do I make a free call with the Facebook messenger? Pretty simple, you need to hit the “i” info icon in any of the messenger pages like a conversation or contact information page. In the panel there is a “Free Call” button that you can use to make a call. But your friend must have shared his / her mobile number with Facebook and should be available for a call.