AudioCodes 405HD, Administrator'S Manual, Page: 121 / 242

Administrator's Manual 5. Configuring VoIP Settings
Version 3.4.3 121 400HD Series IP Phones
5.9.4 Configuring Speaker Volume
The speaker volume can be configured.
Note:
It's strongly advisable not to change the default values.

To configure speaker volume:
• Use the table as reference.
Table 5-59: Speaker Parameters
Parameter Description
Hands-free Gain Parameters
Note:
Values are in decibels (dB)

Decimal places: Use underscore instead of period (e.g.,
plus19_5db
).
voip/audio/gain/NB/handsfree_digital_input_gain Digital input gain (in dB) – Narrow Band.
Default = -6.
The valid range is (-32) to 31 (dB), where -
32 is mute.
voip/audio/gain/NB/handsfree_digital_output_gain Digital output gain (in dB) – Narrow Band.
Default = -10.
The valid range is (-32) to 31 (dB), where -
32 is mute.
voip/audio/gain/WB/handsfree_digital_input_gain Digital input gain (in dB) – Wide Band.
Default = -6.
The valid range is (-32) to 31 (dB), where -
32 is mute.
voip/audio/gain/WB/handsfree_digital_output_gain Digital output gain (in dB) – Narrow Band.
Default = -10.
The valid range is (-32) to 31 (dB), where -
32 is mute.
voip/audio/gain/NB/handsfree_analog_output_gain Analog output gain (in dB) – Narrow Band.
Valid values:
0db (default), minus1_5db ,
minus3db , minus4_5db , minus6db ,
minus7_5db , minus9db , minus10_5db ,
minus12db , minus13_5db , minus15db ,
minus16_5db , minus18db , minus19_5db ,
minus21db
,
minus22_5db
,
minus24db
,
minus25_5db , minus27db , minus28_5db ,
minus30db , minus31_5db , minus33db ,
minus34_5db , minus36db , minus37_5db ,
minus39db , minus39db , minus42db ,
minus48db , minus54db, MUTE