You don't pay when the phone rings. You pay once you decide to answer it and the call is established. That requires positive action, so you certainly have contr

You don't pay when the phone rings. You pay once you decide to answer it and the call is established. That requires positive action, so you certainly have control. I could just as well say that being able to receive calls at any location is a great convenience, so the logic of paying for that is obvious. But I won't, because there are a lot of different ways to see it, and none is obviously right or wrong.