Nortel Networks P0857846 用户手册
Troubleshooting / 147
P0857846 Issue 02
Norstar-PLUS Modular ICS 2.0 System Coordinator Guide
Pressing any button or hanging up ends the test.
Testing the telephone headset
The headset test is not available to telephones that do not have a
headset jack or a headset plugged in.
headset jack or a headset plugged in.
•
Press
ƒ°‚fi
, then
£
or
NEXT
until the display
shows
Headset test
.
•
Press
TEST
or
˙
to go ahead with a headset test.
You should hear dial tone through the headset. The volume will be
reset to a default level during the test.
reset to a default level during the test.
Pressing any button ends the test.
Testing the telephone speaker
•
Press
ƒ°‚fi
, then
£
or
NEXT
until the display
shows
Speaker test
.
•
Press
TEST
or
˙
to go ahead with a speaker test.
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.
maximum volume. The volume returns to its previous setting when
you end the test.
Pressing any button ends the test.
Testing the power supply to a telephone
•
Press
ƒ°‚fi
, then
£
or
NEXT
until the display
shows
Power test
.
•
Press
TEST
or
˙
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
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.