Ok. Now I see part of the picture..Thanks for that info.
In the future you might try being a bit less condescending though.
So then what happens if a person that has a data plan with sms on the AT&T network decides to drop the data and sms plan from their iPhone ?
Is the person relegated to WiFi only ? Or can the person still use AT&T's cell towers.
WiFi only. You get the cell tower data only if you pay for it.