Nortel Networks 1100 User Manual

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Controls and settings
17
Press the Services key to access the following menu items:
Display diagnostics
Set Info
Display diagnostics
Use the Up/Down navigation keys to scroll the Display diagnostics menu 
to access the following screens/diagnostic operations:
initial screen
Full Contrast
LED  Test
Character Test
Initial screen
Instructions are displayed on the display area of the IP Phone and the 
Expansion Module. The DN/feature key display areas is blank.
Full Contrast
The IP Phone and the Expansion Module display areas are set to 
maximum (dark) contrast, including the DN/feature key areas. All LEDs 
are off.
LED Test
The IP Phone and the Expansion Module LEDs are set to on. The display 
area is cleared including the DN/feature key display areas.
Character Test
The IP Phone and the Expansion Module LEDs are set to off. The 
available character set is displayed across all writable areas of the 
display, including the DN/feature key display areas. The telephone on-
hook icon is displayed for all DN/feature keys.