Yealink SIP-T21 E2

Administrator’s Guide for SIP-T2 Series/T19(P) E2/T4 Series/T5 Series/CP860/CP920 IP Phones
880
Web User Interface
Configure AEC.
Navigate to:
http://<phoneIPAddress>/serv
let?p=settings-voice&q=load
Details of the Configuration Parameter:
Parameter
Permitted Values
Default
voice.echo_cancellation
0 or 1
1
Description:
Enables or disables the AEC (Acoustic Echo Canceller) feature on the IP phone.
0-Disabled
1-Enabled
Web User Interface:
Settings->Voice->Echo Cancellation->ECHO
Phone User Interface:
None
To configure AEC via web user interface:
1. Click on Settings->Voice.
2. Select the desired value from the pull-down list of ECHO.
3. Click Confirm to accept the change.
Background Noise Suppression (BNS)
Background noise suppression (BNS) is designed primarily for hands-free operation and
reduces background noise to enhance communication in noisy environments.