5-328
41-001343-01 Rev 02, Release 3.2.2
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:
•
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.
Headset sidetone gain
The increased (+db) or decreased (-db) amount of sidetone signal from the 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.
Handset sidetone gain
The increased (+db) or decreased (-db) amount of sidetone signal from the handset
microphone to the handset speaker.
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