Avaya

4620 User Manual page 59

Chapter 8: Telephone Management and
Troubleshooting
Problem/Symptom
Characters do not appear on
the Display screen
Audio quality is poor,
specifically, you hear an echo
while using a handset, static,
sudden silences (gaps in
speech), clipped or garbled
speech, etc.
No dial tone
Suggested Solution
See "Phone does not activate after
connecting it the first time" above.
Check all lines into the phone to be sure it
is properly connected.
Check the power source to be sure your
telephone is receiving power.
Perform the following Test procedure: with
the telephone idle (on-hook), press and
release the Mute button, then press the
following numbers on the dialpad: 8 3 7 8 #
(which stands for TEST). The display
should indicate the self-test has started,
then report if the test was successful or
failed. If nothing appears on the display,
and the phone is receiving power, your
phone may need to be replaced.
If the above suggested solutions do not
resolve the problem, reset or power cycle
the phone with your System
Administrator's assistance.
Various potential network problems may
be causing the problem.
Access the Network Audio Quality screen
(described in Viewing the Network Audio
Quality in Chapter 6, to be able to provide
your System Administrator with specific
information related to this problem.
Contact your LAN Administrator with as
complete a description of the problem as
possible.
Make sure both the handset and line cords
into the phone are securely connected.
Note that there may be a slight operational
delay if you unplug and reconnect the
phone.
Reset or power cycle the phone with your
System Administrator's assistance. (See
the section titled Resetting and Power
Cycling the IP Telephone
Contact your System Administrator if the
above steps do not produce the desired
result.
Basic Troubleshooting Chart
for details.)
Issue 1 July 2002
8-5