Specifications

310HD, 320HD and 420HD IP Phones
23.4 Configuring Speakerphone (Hands Free) Volume
The speakerphone (Hands Free) volume can be configured using the Web or Configuration
File, as described below.
 To configure speakerphone (Hands Free) volume:
 Using the Web:
1. Access the ‘Volume Setting’ page (Configuration tab > Voice Over IP menu >
Volume Settings).
Figure 23-4: Hands Free Web Fields
2. Configure the Volume settings according to the parameters in the table below,
and then click Submit.
3. Access the ‘Services’ page (Configuration tab > Voice Over IP menu > Volume
Settings).
Figure 23-5: Additional Speaker Volume Web Field
4. Configure the speakerphone volume according to the parameters in the table
below, and then click Submit.
Table 23-13: Speakerphone (Hands Free) Parameters
Parameter Description
Hands-free Gain Parameters
Note: Values are in decibels (dB) and represented as follows:
 Negative values: use the word "minus" (e.g. =minus9db).
 Positive values: use the word "plus" (e.g. =plus9db).
 Decimal places: use underscore instead of period (e.g. plus19_5db).
Hands Free Digital Output
[voip/audio/gain/handsfree_digital_output_gain]
Digital output gain (in dB).
The valid range is (-32) to 31 (dB), where -
32 is mute.
Hands Free Digital Input
[voip/audio/gain/handsfree_digital_input_gain]
Digital input gain (in dB).
The valid range is (-32) to 31 (dB), where -
32 is mute.
Administrator's Manual 154 Document #: LTRT-09910