Audio Transmit And Receive Gain Adjustments - Aastra SIP 53I Administrator's Manual

IP Phone Administrator Guide
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:
• 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
5-218
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.
(continued)
41-001160-00, Release 2.1, Rev 04