Deano’s answer to: “Can iPhones function without a data plan for the sole purpose of placing and receiving phone calls, as well as using some features that don’t require internet (i.e., calculator, clock, listening to music)?”

AT&T specifically prohibits iPhone service plans without data.

That said, if you are able to unlock your phone "illegally", then you could just swap SIM cards with a non-iphone, and associate your iphone to a new plan, even prepaid if you like, with no data requirement.

Can iPhones function without a data plan for the sole purpose of placing and receiving phone calls, as well as using some features that don't require internet (i.e., calculator, clock, listening to music)?