Signal Strength Indication
A cellular phone sends and receives radio signals. As with all radio equipment, the quality of radio reception depends on the strength of the radio signal in the area where you are operating your phone.
The strength of the cellular signal is shown by the vertical bar on the
When NO SERVICE is displayed, the phone is either outside of the cellular service area or re- stricted from entering service, and calls cannot be made or received.
If the signal is poor and you are using the phone in a build- ing, you may get better reception near a window.
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