Ok I upgraded to a iPhone 3G so I was looking for thinks to do with my original iPhone. I jail-broke/unlocked it and went to AT&T and picked up a pay as you go SIM. Everything is working but I keep getting billed for "GPRS" fees anywhere from .01 cents to a dollar, 5 or 6 times an hour even if I am not using it. I am guessing this has to do with voice mail? Is this correct, or is it something else making the GPRS connection. How can I stop the phone from doing this?