Get a majic jack hook up and go to any internet caffe and for 1 dollar an hour, talk and talk and talk, and as proven, it works...............also take any old sprint, verison or at&t phone there and get it turned into a prepaid phone for around 10 dollars US....
If you do anything other than wifi, with your phone with at&t, international service or whatever, it's gonna cost you out the nose.........
So it's a hassle or you can pay the 2 dollars a minute with at&t or sprint........I have learned the hard way already..............