Coder Parameters - AudioCodes Mediant 600 User Manual

Parameter
EMS: Echo Canceller Hybrid
Loss
[ECHybridLoss]
[ECNLPMode]
[EchoCancellerAggressiveNLP] Enables or disables the Aggressive NLP at the first 0.5 second of
[RTPSIDCoeffNum]

13.11.2 Coder Parameters

The coder parameters are described in the table below.
Parameter
[EnableEVRCVAD]
EMS: VBR Coder DTX Min
[EVRCDTXMin]
SIP User's Manual
1000) can use a max. echo canceller length of 128 msec.

When housed with an MPM module (in Slot #6), no channel
reduction occurs (for Mediant 1000).

It is unnecessary to configure the parameter
EchoCancellerLength, as it automatically acquires its value
from this parameter.
Sets 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] = 6 dB (default)

[1] = N/A

[2] = 0 dB

[3] = 3 dB
Defines the echo cancellation Non-Linear Processing (NLP)
mode.

[0] = NLP adapts according to echo changes (default).

[1] = Disables NLP.

[2] = Silence output NLP.
Note: This parameter can also be configured per Tel Profile,
using the TelProfile parameter (see ''Configuring Tel Profiles'' on
page 135).
the call. When enabled, the echo is removed only in the first half
of a second of the incoming IP signal.

[0] = Disable

[1] = Enable (default)
Note: For this parameter to take effect, a device reset is required.
Determines 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].
Table 13-33: Coder Parameters
Enables or disables the EVRC voice activity detector.

[0] = Disable (default)

[1] = Enable
Note: Supported for EVRC and EVRC-B coders.
Defines the minimum gap between two SID frames when using the
EVRC voice activity detector. Units are in EVRC frame size (20
msec).
The range is 0 to 20000. The default value is 12.
Note: Supported for EVRC and EVRC-B coders.
588
Mediant 600 & Mediant 1000
Description
Description
Document #: LTRT-83308