Avaya J169 Installing And Administering page 193

Condition
The phone works, but the audio quality is poor,
specifically:
May 2018
AND the phone was
recently moved.
AND the network was
recently changed to
upgrade or replace
servers, re-administer the
Avaya Media Server, add
or change NAT, etc.
the user hears echo
when speaking on a
handset.
the user hears an echo
on a headset, but not on
a handset.
the user is on Speaker
and hears no echo, but
the far-end hears echo.
the user experiences
sudden silences such as
gaps in speech, or static,
clipped or garbled
speech, etc.
the user hears
fluctuations in the volume
level which are worse
when the Speaker is on,
or at the beginning of a
call, or when a call goes
Installing and Administering Avaya J169/J179 IP Phone H.323
Comments on this document? infodev@avaya.com
Operational errors and status messages
Cause/Resolution
CAUSE: Loss of communication with the call server.
RESOLUTION: As above, but verify whether the
phone is being routed to a different DHCP server, or
even a different call server switch. If so, the new
server or switch might need to be administered to
support the phone.
CAUSE: Loss of communication with the call server.
RESOLUTION: As above.
CAUSE: Echo from digital-to-analog conversion on
your Avaya Media Server trunk.
RESOLUTION: Identify the trunk that is causing the
echo, and swap the Trunk Termination parameter for
that trunk on the call server.
CAUSE: Improper headset cord.
RESOLUTION: Ensure that an headset cord approved
by Avaya is being used.
CAUSE: Room acoustics.
RESOLUTION: Ensure that there are six inches or so
of blank space to the right of the phone. If that is
insufficient, use the handset.
CAUSE: Jitter, delay, dropped packets, etc.
RESOLUTION: You can have the user provide
diagnostic data to Avaya support by invoking the
Network Information feature under the A (Avaya
Menu) or Home button on the phone. One or more
Quality of Service (QoS) features should be
implemented in the network.
CAUSE: Improper non-Category 5 wiring.
RESOLUTION: Replace non-Category 5 wiring with
Category 5 wiring.
CAUSE: The user has changed the Automatic Gain
Control (AGC) or environmental acoustics are not
consistent with the current audio settings.
RESOLUTION: Try different On or Off settings for the
AGCHAND, AGCHEAD, and AGCSPKR parameters.
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