Troubleshooting Guidelines
56 9600 Series SIP IP Telephones Release 2.0 Installation and Maintenance Guide
The telephone works, but the
audio quality is poor, specifically:
the user hears echo
when speaking on a
handset.
CAUSE:
Echo from digital-to-analog conversion
on your CM call server trunk.
RESOLUTION:
Verify which trunk is causing the
echo, and swap the trunk’s Trunk Termination
parameter on the call server.
the user hears echo
on a headset, but not
on a handset.
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.
the user is on Speaker
and hears no echo,
but the far-end hears
echo.
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.
the user experiences
sudden silences such
as gaps in speech, or
static, clipped or
garbled speech, etc.
CAUSE:
Jitter, delay, dropped packets, etc.
RESOLUTION:
You can have the user provide
diagnostic data by invoking the Network
Information feature under the
A
(Avaya) button
on the telephone. One or more Quality of
Service (QoS) features should be implemented
in the network as covered in
Chapter 3: Local
Administrative Options
.
CAUSE:
Improper non-Category 5 wiring.
RESOLUTION:
Replace non-Category 5 wiring
with Category 5 wiring.
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:
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 AGCHAND, AGCHEAD, and AGCSPKR
parameters.
The telephone works properly except for the
Speaker.
CAUSE:
The Speaker was disabled in the
settings file.
RESOLUTION:
Check the settings file and
re-enable the Speaker if appropriate.
The telephone works properly, except
incoming DTMF tones are not received.
CAUSE:
The TN2302AP board does not pass
in-band DTMF tones.
RESOLUTION:
None; the board is operating as
designed.
Table 3: Operational Error Conditions for 9600 Series SIP IP Telephones (continued)
Condition
Cause/Resolution
3 of 5
Содержание one-X Deskphone Edition
Страница 46: ...Local Administrative Options 46 9600 Series SIP IP Telephones Release 2 0 Installation and Maintenance Guide ...
Страница 70: ...Glossary of Terms 70 9600 Series SIP IP Telephones Release 2 0 Installation and Maintenance Guide ...
Страница 72: ...Related Documentation 72 9600 Series SIP IP Telephones Release 2 0 Installation and Maintenance Guide ...
