Nokia 2180 Signal Strength, No service, Unavailable service, When network service is unavailable

3. Signal Strength

Your phone operates on radio waves, and the quality of ra- dio reception depends entirely on the strength of the radio signal in your area.

Because the radio coverage is maintained by a wireless network, the quality of calls on a wireless phone depends on the strength of the wireless radio signal.

The stronger the radio signal, the better the call quality. A strong signal is indicated by the signal indicators on the left side of your phone’s dis- play, which scroll as the strength of the signal increases and decreases.

Increasing your phone’s signal may be easy. Try moving your phone slightly, or move towards a window if you’re calling from inside a building.

No service

If you’re outside the wireless service area, 12 6(59,&( will display on your phone. No calls can be made or received, including emergency calls.

Unavailable service

When network service is unavailable

from your service provider or its affili- ates, emergency calls may be possible via other networks to their designated emergency number only (e.g. 911 or some other official emergency

number).

Your phone’s display will remain empty, but a ' will appear at the top of your screen. No other calls can be made or received.

Also, see “To Make An Emergency Call” on page 11.

8