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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.