NEC DT900 Series - I Cannot See a Particular Softkey on My Phone; LCD Screen;Display; The LCD Is too Light or Dark; I Want to Adjust the Time the LCD Stays Lit

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LCD SCREEN/DISPLAY
DT900/DT900S Series Phone User Guide 11-165
2 Some softkeys may not be available on your model of phone, or may be restricted by
your system administrator. Contact your system administrator to determine which
features are available for your system.
3 Restart the phone:
a. Press the Menu key.
b. Select 5 Reboot.
c. Press the OK softkey or b Enter key on the cursor pad to restart the phone.
Note:
If you cannot restart the phone using the Menus, unplug the phone from power
and the network for ten seconds, then reconnect the telephone to your
network and power to perform a
restart.
4 If you are still having problems with your phone, contact your system administrator.
I cannot see a particular softkey on my phone
1 If the More softkey appears on the LCD, press the softkey to see additional softkeys for
your screen.
2 Some softkeys may not be available on your model of phone, or may be restricted by
your system administrator. Contact your system administrator to determine which
features are available for your system.
3 Restart the phone:
a. Press the Menu key.
b. Select 5 Reboot.
c. Press the OK softkey or b Enter key on the cursor pad to restart the phone.
Note:
If you cannot restart the phone using the Menus, unplug the phone from power
and the network for ten seconds, then reconnect the telephone to your
network and power to perform a
restart.
4 If you are still having problems with your phone, contact your system administrator.
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LCD SCREEN/DISPLAY
The LCD is too light or dark
• Press the Menu key and select 3 User Settings, 6 LCD Settings, 1 LCD Contrast,
then use the softkeys to adjust the LCD contrast.
I want to adjust the time the LCD stays lit
You can adjust the timeout of the LCD backlight on your phone. You can specify a
value between 0 (None) to 255 seconds.
1 Press the Menu key.
2 Select 3 User Settings.
3 Select 6 LCD Settings.
4 Select 2 LCD Backlight Timeout.
5 The default backlight timeout, in seconds, for your system is shown. To change the
timeout, press the Delete softkey and use the telephone keypad to enter new backlight
timeout.