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.
Parameter
Headset tx gain
Headset sidetone gain
Handset tx gain
Handset sidetone gain
41-001160-01, Rev 00, Release 2.3
Note: Aastra Telecom recommends you leave the default of 0 (zero) as
the settings for these parameters.
Description
The increased (+db) or decreased (-db) amount of signal transmitted from
the headset microphone to t he far-end party.
The increased (+db) or decreased (-db) amount of sidetone signal from the
headset microphone to the headset speaker.
The increased (+db) or decreased (-db) amount of signal transmitted from
the handset microphone to the far-end party.
The increased (+db) or decreased (-db) amount of sidetone signal from the
handset microphone to the handset speaker.
Configuring Operational Features
Operational Features
(continued)
5-339