User's Manual

Services key operation 451
Display diagnostics
Use the Up/Down navigation keys to scroll the Display diagnostics menu to
access the following screens/diagnostic operations
•
“Initial screen” (page 451)
•
“Full Contrast” (page 451)
•
“LED Test” (page 451)
•
“Character Test” (page 451)
Initial screen
Instructions are displayed on the display area of the IP Phone and the
Expansion Module. The DN/feature key display areas are 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.
Table 72 "Display diagnostic operation on the IP Phone and the Expansion
Module for IP Phone 1100 Series" (page 451) shows the display diagnostic
operation on the IP Phones and the Expansion Module.
Table 72
Display diagnostic operation on the IP Phone and the Expansion Module for IP Phone 1100
Series
Diagnostic step
IP Phone DN/feature key
display area
Expansion Module display
area
initial screen blank blank
Full Contrast set to highest contrast set to highest contrast
LED Test blank blank
Character Test Characters display across the
display areas, the telephone
on-hook icon is displayed.
Characters display across the
display areas, the telephone
on-hook icon is displayed.
Nortel Communication Server 1000
IP Phones Fundamentals
NN43001-368 02.07
5 February 2009
Copyright © 2003-2009 Nortel Networks
.