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Reading the Indicators
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Signal Strength Indicator (1)
The Signal Strength Indicator (SSI) tells you the strength of the connection between your phone and the local cellular system. A strong signal increases your chances of placing and receiving calls. You may see low signal strength if you’re in a fringe area of the cellular system. Buildings, tunnels, and bad weather could block or interfere with reception. If the display goes blank to conserve energy in standby mode, the Signal Strength Indicator’s lights flash one at a time up to the signal level you are receiving.
In Use Indicator (2)
The In Use (IU) Indicator flashes when a call is in progress.
No Service Indicator (3)
If you travel beyond the range of a cellular system, the No Service (NS) Indicator will flash to let you know that calls cannot be placed or received from your location.
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