Mobile phones send and receive radio signals with any number of cell site base stations fitted with microwave antennas.

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These sites originally created large cells, and so had their antennae mounted atop high towers; download free cell ringtone phone were designed so that as the system expanded—and cell sizes shrank—the antennae could be lowered on their original masts to reduce range.

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iMelody: Most new phones that don't do Nokia's Smart Messaging are using this format.

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