Aastra Telecom 9480i Series User Manual
Operational Features
41-001160-03, Rev 00, Releaes 2.4
5-357
Configuring Operational Features
Audio Transmit and Receive Gain Adjustments
The audio gain properties for the IP phone handset, headset, and speakerphone is
adjusted to reduce side-tone and echo on the local and far-end equipment. You can
adjust these settings from -10 db to +10 db to best suit your comfort level and
deployment environment by using the following parameters in the configuration
files:
adjusted to reduce side-tone and echo on the local and far-end equipment. You can
adjust these settings from -10 db to +10 db to best suit your comfort level and
deployment environment by using the following parameters in the configuration
files:
•
headset tx gain
•
headset sidetone gain
•
handset tx gain
•
handset sidetone gain
•
handsfree tx gain
•
audio mode
The default setting for these parameters is 0 (zero).
The following table describes each parameter.
Note:
Aastra Telecom recommends you leave the default of 0 (zero) as
the settings for these parameters.
Parameter
Description
Headset tx gain
The increased (+db) or decreased (-db) amount of signal transmitted from
the headset microphone to t he far-end party.
the headset microphone to t he far-end party.
Headset sidetone gain
The increased (+db) or decreased (-db) amount of sidetone signal from the
headset microphone to the headset speaker.
headset microphone to the headset speaker.
Handset tx gain
The increased (+db) or decreased (-db) amount of signal transmitted from
the handset microphone to the far-end party.
the handset microphone to the far-end party.
Handset sidetone gain
The increased (+db) or decreased (-db) amount of sidetone signal from the
handset microphone to the handset speaker.
handset microphone to the handset speaker.
(continued)
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