ADJUSTING THE DISPLAY CONTRAST
1.Repeatedly press MODE until the system displays
CALLER ID MODE.
2.Press either REVIEW button. The system displays the total number of stored calls.
3.Press and hold READ for about 6 seconds. The system shows CONTRAST : XX.
4.Press REVIEW 
to increase the contrast (up to 15) or
REVIEW 
to decrease it (down to 00).
5.Press READ to store the setting.
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