Grandstream Networks GXV3380 Administration Manual page 74

Control
Handset TX Gain (dB)
Handset RX Gain (dB)
Virtual Sound Card TX
gain(dB)
Virtual Sound Card RX
gain(dB)
default setting is "No".
Configures the transmission gain of the handset.

0

-6

+6
Default setting is "-6dB".
Note: Reboot is required to take effect.
Configures the handset volume, thus controls the received audio signal.
Note: When set to +6dB, the increasing handset volume may cause
irreversible damage to the hearing, please proceed with caution.

0

-6

+6
The default setting is "0dB".
Note: Reboot is required to take effect.
Configures the transmission gain of the virtual sound card, it can be
selected from the dropdown list.

-18

-15

-12

-9

-6

-3

0

+3

+6

+12

+15

+18
The default setting is 0dB.
Note: Reboot is required to take effect.
Configures the virtual sound card received audio signal, it can be selected
from the dropdown list.

-18

-15

-12

-9

-6

-3

0

+3
GXV3380 Administration Guide
Version 1.0.1.19
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