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Adjusting the Console
9
Adjusting the Display Brightness
To dim or brighten the display:
1. Press and hold Function.
2. Press the Contrast
∧ key until you reach the desired level of brightness.
3. Press the Contrast
∨ key to decrease the brightness to the desired level.
4. Press F1 when finished.
Turning the Console Bell (Ringer) Off/On
When the bell is off, a flashing Answer key and the C/W indicator on the display are the only
indications that calls are waiting to be answered.
To turn the bell on or off:
1. Press Function.
2. Press [Bell Off] or [Bell On].
Switching to Night/Day Service
Incoming calls that normally ring the console during the day can ring another answering point
at night. Your system may have one or two night service modes called Night 1 and Night 2. The
mode you should select depends on system programming.
Any attendant can switch the system into night or day service. When the system is in night
service, the night status indicator (Night 1 or Night 2) displays on all consoles.
To switch to night or day service:
1. Press Function.
2. Press [Att Function].
3. Press [Chg Service].
4. Press [Night 1], [Night 2], or [Day] as required.
Note: When the Function key is pressed, the display shows the available softkeys.
These softkeys can be ignored as the display will revert to normal when the F1 key is
pressed.
Note: The backlight on the 5540 IP console is always on and does not dim.