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Reading the Indicators
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Low
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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