AudioCodes Mediant 3000, User Manual

Page: 729 / 872

Version 6.6 729 Mediant 3000
User's Manual 53. Configuration Parameters Reference
Parameter Description
'annexb=yes'.

If EnableSilenceCompression is 2 and IsCiscoSCEMode is 1:
'annexb=no'.
Note: This parameter can also be configured in an IP Profile.
Web: Echo Canceler
EMS: Echo Canceller Enable
[EnableEchoCanceller]
Enables echo cancellation (i.e., echo from voice calls is removed).

[0] Disable

[1] Enable (default)
Note: This parameter can also be configured in an IP Profile
and/or a Tel Profile.
Web: Network Echo Suppressor
Enable
[AcousticEchoSuppressorSup
port]
Enables the network Acoustic Echo Suppressor feature on SBC
calls. This feature removes echoes and sends only the near-end’s
desired speech signal to the network (i.e., to the far-end party).

[0] Disable (default)

[1] Enable
Note: For this parameter to take effect, a device reset is required.
Web: Echo Canceller Type
[EchoCancellerType]
Defines the echo canceller type.

[0] Line echo canceller = (Default) Echo canceller for Tel side.

[1] Acoustic Echo suppressor - netw = Echo canceller for IP
side.
Web: Attenuation Intensity
[AcousticEchoSuppAttenuatio
nIntensity]
Defines the acoustic echo suppressor signals identified as echo
attenuation intensity.
The valid range is 0 to 3. The default is 0.
Web: Max ERL Threshold - DB
[AcousticEchoSuppMaxERLTh
reshold]
Defines the acoustic echo suppressor maximum ratio between
signal level and returned echo from the phone (in decibels).
The valid range is 0 to 60. The default is 10.
Web: Min Reference Delay x10
msec
[AcousticEchoSuppMinRefDel
ayx10ms]
Defines the acoustic echo suppressor minimum reference delay
(in 10-ms units).
The valid range is 0 to 40. The default is 0.
Web: Max Reference Delay x10
msec
[AcousticEchoSuppMaxRefDel
ayx10ms]
Defines the acoustic echo suppressor maximum reference delay
(in 10-ms units).
The valid range is 0 to 40. The default is 40 (i.e., 40 x 10 = 400
ms).
EMS: Echo Canceller Hybrid
Loss
[ECHybridLoss]
Defines the four-wire to two-wire worst-case Hybrid loss, the ratio
between the signal level sent to the hybrid and the echo level
returning from the hybrid.

[0] = (Default) 6 dB

[1] = N/A

[2] = 0 dB

[3] = 3 dB
EMS: ECN lp Mode
[ECNLPMode]
Defines the echo cancellation Non-Linear Processing (NLP)
mode.

[0] = (Default) NLP adapts according to echo changes

[1] = Disables NLP

[2] = Silence output NLP