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Wireless telephones are
hand-held phones with built-in antennas, often called cell, mobile, or PCS phones. These phones are popular with callers because they can be carried
easily from place to place.Wireless telephones are two-way radios. When you talk into a wireless telephone, it picks up your voice and converts the
sound to radiofrequency energy (or radio waves). The radio waves travel through the air until they reach a receiver at a nearby base station. The base
station then sends your call through the telephone network until it reaches the person you are calling.
