Testing The Telephone Speaker; Testing The Power Supply To A Telephone - Northern Telecom Compact ICS 4.0 Manual

214 / Troubleshooting
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Testing the telephone speaker

1. Press
display reads
TEST
2. Press
You should hear page tone through the telephone speaker at
the maximum volume. The volume returns to its previous
setting when you end the test.
Pressing any button ends the test.
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Testing the power supply to a telephone

1. Press
display reads
TEST
2. Press
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
The test lasts for five seconds or until you press a button.
Compact ICS 4.0 System Coordinator Guide
Speaker test
˙
or to go ahead with a speaker test.
Power test
˙
.
or to go ahead with a power supply
£
NEXT
, then or
.
£
NEXT
, then or
Power OK
.
until the
until the
P0881596 Issue 02