Avaya 1400 Series Installation And Maintenance Manual page 22

Troubleshooting Guidelines
Table 1: Operational Error Conditions for 1400 Series Digital Deskphones (continued)
Condition
The telephone works, but the
audio quality is poor, specifically:
The telephone works properly except for the
Speaker.
Hands-Free Answer (HFA) is administered
but the telephone did not automatically
answer a call.
22 Avaya 1400 Series Digital Deskphones Installation and Maintenance Guide
the user hears echo
when speaking on a
handset.
the user hears 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 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
from no one talking
abruptly to a loud
voice.
Cause/Resolution
CAUSE: Echo from digital-to-analog conversion
on your Avaya media server trunk.
RESOLUTION: Verify which trunk is causing the
echo, and swap the trunk's Trunk Termination
parameter on the call server.
CAUSE: Improper headset adapter.
RESOLUTION: Replace adapter with Avaya's
M12LU or 3412-HIC adapters. We recommend
the M12LU, since it supports Automatic Gain
Control.
CAUSE: Room acoustics.
RESOLUTION: Ensure that there are six inches
or so of blank space to the right of the
telephone. If that is insufficient, use the handset.
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/off settings for
the AGC and audio parameters.
CAUSE: The Speaker was turned off at the call
server.
RESOLUTION: Administer the call server to
allow that station's Speaker to operate. If that
does not work, do a self-test on the telephone,
as explained in the user guide.
CAUSE: HFA only works if the telephone is idle.
A second call is ignored if it comes in while a call
is in progress, including ringing before the first
call is answered.
RESOLUTION: None.
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