Samsung Ubigate iBG2016 Configuration Manual page 567

The presence of echo occurs whenever the replicated signal delay exceeds 10
msecs, and becomes apparent to the speaker as reflected voice when the delay
exceeds as little as 16 msec. It is manifested to the far end as an altered replica
of the speaker original. If the echo interval exceeds approximately 25
milliseconds, it is distracting. In order to combat the echo phenomenon, an
echo cancellor is employed.
San Francisco
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© SAMSUNG Electronics Co., Ltd.
Clear speech Send
E
C
Figure 6.6 Echo problem
Command
configure terminal
voice-port slot/sub-
slot/port:ds0-group-no
echo-cancel enable
echo-cancel coverage
{ 8 | 16 | ... | 128 }
non-linear
exit
show voice port
slot/sub-slot/port:ds0-
group-no
Ubigate iBG2016 Configuration Guide/Ed.00
PSTN
E
C
Receiver
Purpose
Enter the global configuration mode.
Enter the module configuration mode.
Enables the echo cancellation on this voice port.
Echo cancellation works on the echo
cancellation coverage which is configured by
user or as default.
Choose the echo tail length(echo cancel
coverage) to which echo cancellor is committed.
Enables nonlinear processing(residual echo
suppression) in the echo canceler.
Exit the voice-port configuration mode.
checks out if the values set up in the voice
port are set up normally.
Caller
Philadelphia
Clear speech
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