The cells work by trading off phone signals to the next tower in the direction of travel. This is handshaking controlled by the tower. The output level is also controlled to a minimal level, to avoid tieing up several towers with the same phone call. The handoff sometimes involves frequency hopping to a different channel, on the new tower.
All this, while you are talking on the phone....
:)>
I understand.
But I still want a unix based phone, LOL!
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