Acoustic Echo Cancellation (Aec); Aec Configuration; Noise Suppression; Noise Suppression Configuration - Yealink SIP-T3 Administrator's Manual

Administrator's Guide for SIP-T2 /T3 /T4 /T5 /CP920 IP Phones

Acoustic Echo Cancellation (AEC)

Yealink phones employ advanced AEC for hands-free operation. You can configure the AEC feature to remove the
echo of the local loudspeaker from the local microphone without removing the near-end speech.
AEC is not normally required for calls via the handset. In some cases, where echo is experienced by the remote
party, AEC may be used to reduce/avoid echo when you use the handset.
Note
: Utilizing acoustic echo cancellation will introduce a small increase of delay into an audio path which might cause a
lower voice quality.
Topic

AEC Configuration

AEC Configuration
The following table lists the parameter you can use to configure AEC.
Parameter voice.echo_cancellation
Description It enables or disables the AEC (Acoustic Echo Canceller) feature.
Permitted
0-Disabled
Values 1-Enabled
Default 1
Web UI Settings > Voice > Echo Cancellation > ECHO

Noise Suppression

The impact noise in the room is picked-up, including paper rustling, coffee mugs, coughing, typing, and silverware
striking plates. These noises, when transmitted to remote participants, can be very distracting.
You can enable the Noise Suppression feature to suppress these noises.
Topic

Noise Suppression Configuration

Noise Suppression Configuration
The following table lists the parameter you can use to configure noise suppression.
Parameter voice.tns.enable
Description It enables or disables the Noise Suppression feature.
0-Disabled
Permitted
Values
1-Enabled
Default
1
Supported
T57W, T54W, T53W, T53, T53C, T48U, T46U, T43U, T42U, T33P, T33G, T31P, T31G, T31, T30P, T30,
Devices CP920, CP925, CP935W
Web UI Settings > Voice > Noise Proof > Noise Suppression

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.
201
<y0000000000xx>.cfg
<y0000000000xx>.cfg