Display Contrast - Aastra DBC 225 Directions For Use Manual

DBC 225 MX-ONE
FOR
11.8
120
To enter via the top menu PhoneSet:
• Select the top menu function PhoneSet .
• Frame the menu Set Hearing Level and press the soft-key Select
.
To enter by use of a key combination:
• Press C * 5 simultaneously for at least 1 second.
• Press the Line 1 key (key lamp is turned on).
A tone signal is heard, and the display shows:
or
Note: The soft-keys are only available when firmware revision R3F or
later is active for the telephone. See Firmware indication to check
the firmware revision. For earlier versions the Line 1 key is used
to switch between standard and increased level (key lamp on =
increased level).
11.10 Firmware indication on page 122
• Press the soft-key Change to change to the requested level.
• Press the soft-key Exit , or press # to finish setting.
Note: A level change also effects a headset connected to the headset
outlet.

Display contrast

To enter the contrast menu via the top menu PhoneSet :
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