How can I turn off cellular-plan reminders?
I'm just beginning to use my new iPad Air 2. I plan to use the cellular capability only under specific circumstances; the rest of the time I'll stick to wi-fi. It's the way I used my old iPad, and there was no problem with going without a plan for periods of time. On this iPad, I get constant, harassing reminders to sign up for a cellular plan. I would do that if I could choose a plan that did not cost anything until I used it, but I don't see that option available.
How can I turn off this extremely annoying behavior?
iPad Air, iOS 8.1, 128 GB, Silver