Operational, Basic, and Advanced Parameters
41-001343-02 REV05 – 07.2014 A-149
Audio Transmit and Receive Gain Adjustment Settings
1.
Parameter –
headset tx gain
Configuration Files
aastra.cfg, <model>.cfg, <mac>.cfg
Description This is the increased (+db) or decreased (-db) amount of signal transmitted from the head-
set microphone to the far-end party. The amount of Tx gain in the IP phone firmware has
been reduced to avoid side-tone and echo on the local and far-end equipment. This
parameter allows you to adjust the Tx gain settings to best suit your comfort level and
deployment environment.
Format Integer
Default Value 0
Range -10 db to +10 db
Example headset tx gain: -5
Parameter –
headset sidetone gain
Configuration Files
aastra.cfg, <model>.cfg, <mac>.cfg
Description This is the is the increased (+db) or decreased (-db) amount of sidetone signal from the
headset microphone to the headset speaker. The amount of sidetone gain in the IP phone
firmware has been reduced to avoid side-tone and echo on the local and far-end equip-
ment. This parameter allows you to adjust the sidetone gain settings to best suit your com-
fort level and deployment environment.
Format Integer
Default Value 0
Range -10 db to +10 db
Example headset sidetone gain: -1
Parameter –
handset tx gain
Configuration Files
aastra.cfg, <model>.cfg, <mac>.cfg
Description This is the increased (+db) or decreased (-db) amount of signal transmitted from the hand-
set microphone to the far-end party. The amount of Tx gain in the IP phone firmware has
been reduced to avoid side-tone and echo on the local and far-end equipment. This
parameter allows you to adjust the Tx gain settings to best suit your comfort level and
deployment environment.
Format Integer
Default Value 0
Range -10 db to +10 db
Example handset tx gain: -5
Parameter –
handset sidetone gain
Configuration Files
aastra.cfg, <model>.cfg, <mac>.cfg
Description This is the increased (+db) or decreased (-db) amount of sidetone signal from the handset
microphone to the handset speaker. The amount of sidetone gain in the IP phone
firmware has been reduced to avoid side-tone and echo on the local and far-end equip-
ment. This parameter allows you to adjust the sidetone gain settings to best suit your com-
fort level and deployment environment.
Format Integer
Default Value 0
Range -10 db to +10 db
Example handset sidetone gain: -1
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