This shud work with Any carrier that gives free minutes like the my faves option for T mobile or Pick 3 or 5 for sprint
Set up a google voice as one of the numbers and use that to make ougoing calls. basically GV calls you and connects the other party, thereby making it a free call anytime for u.
I just gont mine done.
and depending on how you have set up GV to forward calls to your phone, even your incoming calls can be free. you can set it up to forward your GV # for caller id. but you wont know who is calling until u pick up the phone.
interesting times with GV ahead.
do read this abt free voip with GV plus gizmo.
http://lifehacker.com/5323632/make-f...-voice--gizmo5
I have been using this option very well for a few months also.
Rex.