Backlight

The display and keypad are illuminated by a backlight. When you press any key, the backlight illuminates.
It turns off if no key is pressed within a given period of time, depending on the
Backlight option set in the Phone Settings menu.

To specify the length of time for which the backlight is active, set the Backlight menu option (5-5); see page 72 for further details.

 

Service Light
 
The service light is on the top of the phone. It flashes when services are available on the phone.

To activate or deactivate use of the service light, set the Service Light menu option (5-6); see page 72 for further details.