Nortel Modular ICS 6.0, Manual

Page: 246 / 294

246 / Troubleshooting
Modular ICS 6.0 System Coordinator Guide P0992640 03
Testing the telephone speaker
1. Press
²¡âÞ, then £ or
NEXT
until the display
reads
Speaker test
.
2. Press
TEST
or
³ to go ahead with a speaker test.
A page tone sounds through the telephone speaker at the
maximum volume. The volume returns to its previous
setting when you end the test.
3. Pressing any button ends the test.
Testing the power supply to a telephone
1. Press
²¡âÞ, then £ or
NEXT until the display
reads
Power test
.
2. Press
TEST
or
³ to go ahead with a power supply test.
You should see all the indicators on the telephone go on and
hear ringing at maximum volume. When the test has ended, the
display should briefly show
Power OK
.
The test lasts for five seconds or until you press a button.