Comment Re:Does it explain the sucky battery life? (Score 2) 248
Yes, but it's not just listening. It has to send the tower a keep-alive so the network knows where you are, and calls can be routed to the right tower. Otherwise every cell tower on earth would have to individually broadcast every call made, and wait for a phone, somewhere, to respond.
Plus, carriers gotta be able to charge you through the nose for "roaming" just because your phone is powered on in their airspace :p
Plus, carriers gotta be able to charge you through the nose for "roaming" just because your phone is powered on in their airspace