[itsame]

Something that always annoys me about these articles is the ambiguity behind what constitutes "usage". Idling in pocket (but actively connected to phone network)? Data, text, or voice calls? Voice calls using phone directly to ear, wired headset, or wireless (Bluetooth) headset?

Judging by most articles I've seen, the studies appear to be very typically limited to voice calls using the phone directly to ear, which isn't a common use case in for me.

[madhuprasanna]

True. If a cell phone (with data disabled) is in network standby mode then the paging involves only reception and never a transmission.