AudioCodes Mediant 800 User Manual page 1308

CHAPTER 72 Configuration Parameters Reference
'Min Reference Delay x10 msec'
configure voip/media
voice/acoustic-echo-
suppressor-min-reference-delay
[AcousticEchoSuppMinRefDelayx10ms]
'Max Reference Delay x10 msec'
configure voip/media
voice/acoustic-echo-
suppressor-max-reference-delay
[AcousticEchoSuppMaxRefDelayx10ms]
configure voip > media voice >
echo-canceller-hybrid-loss
[ECHybridLoss]
configure voip > media voice >
echo-canceller-NLP-mode
[ECNLPMode]
configure voip > media voice >
echo-canceller-aggressive-NLP
[EchoCancellerAggressiveNLP]
configure voip > media RTP-
RTCP > number-of-SID-
coefficients
[RTPSIDCoeffNum]
Answer Detector (AD) Parameters
Parameter
- 1268 -
Mediant 800 Gateway & E-SBC | User's Manual
Description
Defines the acoustic echo suppressor minimum
reference delay (in 10-ms units).
The valid range is 0 to 40. The default is 0.
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).
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
Global parameter enabling Non-Linear Processing
(NLP) mode for echo cancellation.
You can also configure the feature per specific
calls, using Tel Profiles (TelProfile_ECNlpMode).
For a detailed description of the parameter and for
configuring the feature in the Tel Profiles table,
see Configuring Tel Profiles.
Note: If the feature is configured for a specific Tel
Profile, the settings of the global parameter is
ignored for calls associated with the Tel Profile.
Enables the Aggressive NLP at the first 0.5
second of the call.
■ [0] = Disable
■ [1] = (Default) Enable. The echo is removed
only in the first half of a second of the
incoming IP signal.
Note: For the parameter to take effect, a device
reset is required.
Defines the number of spectral coefficients added
to an SID packet being sent according to RFC
3389.
The valid values are [0] (default), [4], [6], [8] and
[10].