Yealink SIP-T21 E2

Configuring Audio Features
889
Parameter
Permitted Values
Default
Description:
Enables or disables the Noise Suppression feature on the IP phones.
0-Disabled
1-Enabled
Note: It is only applicable to CP920 IP phones.
Web User Interface:
Settings->Voice->Noise Proof-> Noise Suppression
Phone User Interface:
None
To configure Noise Suppression via web user interface:
1. Click on Settings->Voice.
2. Select the desired value from the pull-down list of Noise Suppression.
3. Click Confirm to accept the change.
Smart Noise Block
You can use the Smart Noise Block feature to block out the noises when there is no speech in a
call. It is only applicable to CP920 IP phones.
Procedure
Smart Noise Block can be configured using the following methods.
Central Provisioning
(Configuration File)
<y0000000000xx>.cfg
Configure Smart Noise Block.
Parameter:
voice.ans_nb.enable
Web User Interface
Configure Smart Noise Block.