Yealink SIP-T58V/A

Administrator’s Guide for SIP-T5 Series Smart Media Phones
622
Acoustic Clarity Technology
Acoustic Echo Cancellation (AEC)
Acoustic Echo Cancellation (AEC) is used to reduce acoustic echo from a voice call to provide
natural full-duplex communication patterns. It also increases the capacity achieved through
silence suppression by preventing echo from traveling across a network. IP phones employ
advanced AEC for hands-free operation. AEC is not normally required for calls via the handset. In
certain situation, where echo is experienced by the remote party, AEC may be used to
reduce/avoid echo when the user uses the handset.
Note
Procedure
AEC can be configured using the following methods.
Central Provisioning
(Configuration File)
<y0000000000xx>.
cfg
Configure AEC.
Parameter:
voice.echo_cancellation
Web User Interface
Configure AEC.
Navigate to:
http://<phoneIPAddress>/servlet?m
=mod_data&p=settings-voice&q=l
oad
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:
Utilizing acoustic echo cancellation will introduce a small delay increase into audio path which
might cause a lower voice quality.