writes:

Ok I am flying my plane at 12,000 feet and the phone might talk to
several towers, thats frowned upon.

At least in GSM, this doesn't actually happen. The telephone rapidly
zeroes in one one base station, and stays with it until power
requirements dictate a handoff (I can't remember if the receiver or
the base station initiates the handoff). It doesn't talk continuously
with multiple base stations, even if multiple stations are in range
(and typically multiple stations _are_ in range, even on the ground).

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Transpose mxsmanic and gmail to reach me by e-mail.