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The screen will display 1. SET DATE 2 Press the VOL+ button twice. The screen will display 3 LCD BRIGHT. 3 Press the MUTE button. The screen will display BRIGHT and a series of “1” representing the display contrast. 4 Use VOL+ and VOL- to adjust the display contrast. 5 Press the MUTE button. The screen will display 3 LCD BRIGHT. 6 Wait a few seconds and the screen will go to idle and display the date and time Set the Interface 1 With the phone on hook, press the MUTE button. The screen will disp