Avaya 4620SW User Manual page 87

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 or gaps
●
in speech,
clipped or garbled
●
speech, and so on
No dial tone
Suggested Solution (continued)
See Telephone does not activate after
connecting it the first time.
Check all lines into the telephone to
●
ensure that it is properly connected.
Check the power source to ensure that
●
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 stand 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 telephone is receiving power,
your telephone might need to be
replaced.
If these suggested solutions do not resolve the
problem, reset or power cycle the telephone with
the help of your System Administrator.
Various potential network problems might cause
this problem.
Access the Network Audio Quality screen
described in Viewing the Network Audio Quality
in Chapter 6: 4620SW/4621SW SIP IP
Telephone Options. Then 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.
Ensure that both the handset and line cords into
the telephone are securely connected. Note that
there might be a slight operational delay if you
unplug and reconnect the telephone.
Reset or power cycle the telephone with the
assistance of your System Administrator. For
information, see the section titled
Power Cycling the SIP IP
Contact your System Administrator if these
steps do not produce the desired result.
Basic Troubleshooting Chart
Resetting and
Telephone.
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Issue 2.2 August 2005 87