Nortel Networks 2004 - Manual (Page 36)

Configure options on the IP Phone 2004
36
Display diagnostics
The Display diagnostics option tests the telephone’s display screen and
indicator lights.To access display diagnostics, press the
Services key
and select Display Diagnostics from the Telephone Option menu.
To select Display diagnostics:
1. Press the Up/Down navigation keys to
scroll through the list to view display
capabilities.
2. Press the Cancel soft key to return to
the Telephone Option menu.