It is 100% the point of a smartphone that its RF antennae work. If you're thinking of putting your smartphone in a Faraday cage whenever you're out in public, don't own one. Stick with the landline. It's cheaper anyway.
I guess you could argue that you still want to make outgoing calls and texts, but if people in general used these devices, there would be no point in making outgoing calls or texts because people would never receive them (except at home, where you have landlines and email anyway.)
It is 100% the point of a smartphone that its RF antennae work. If you're thinking of putting your smartphone in a Faraday cage whenever you're out in public, don't own one. Stick with the landline. It's cheaper anyway.
I guess you could argue that you still want to make outgoing calls and texts, but if people in general used these devices, there would be no point in making outgoing calls or texts because people would never receive them (except at home, where you have landlines and email anyway.)