Not technically impossible. at&t and Verizon have data plans with caps. Now data is data obviously. But so is messaging in fact so is making phone calls. It's ALL data. Yet they don't charge you for that data. At least not as data. So somehow at&t already has the ability to tell that phone call data and messaging data shouldn't be counted as data.
Phone calls and messaging don't go over the data network yet. They're all circuit-switched. When VoLTE happens this will change, but by then AT&T won't have to worry about billing for minutes or texts; it will all be unlimited.
Aren't we splitting hairs here?
reply to iansltx
It won't be unlimited with them. They'd still have usage buckets and minute buckets. Why would they be willing to give up something they make a ton of cash on? They wouldn't.
Where did I say it would be unlimited?