AudioCodes Mediant 600 - Coder Parameters

Version 6.4 631 March 2012
SIP User's Manual A. Configuration Parameters Reference
Parameter Description
Note: This parameter can also be configured per Tel Profile,
using the TelProfile parameter (see 'Configuring Tel Profiles' on
page 217).
[EchoCancellerAggressiveNLP]
Enables the Aggressive NLP at the first 0.5 second of the call.
 [0] = Disable
 [1] = Enable (default). The echo is removed only in the first
half of a second of the incoming IP signal.
Note: For this parameter to take effect, a device reset is required.
[RTPSIDCoeffNum]
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].
A.11.2 Coder Parameters
The coder parameters are described in the table below.
Table A-34: Coder Parameters
Parameter Description
[EnableEVRCVAD]
Enables the EVRC voice activity detector.
 [0] = Disable (default)
 [1] = Enable
Note: Supported for EVRC and EVRC-B coders.
EMS: VBR Coder DTX Min
[EVRCDTXMin]
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.
EMS: VBR Coder DTX
Max
[EVRCDTXMax]
Defines the maximum 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 32.
Note: This parameter is applicable only to EVRC and EVRC-B coders.
EMS: VBR Coder Header
Format
[VBRCoderHeaderFormat
]
Determines the format of the RTP header for VBR coders.
 [0] = Payload only (no header, TOC, or m-factor) - similar to RFC
3558 Header Free format (default).
 [1] = Supports RFC 2658 - 1 byte for interleaving header (always 0),
TOC, no m-factor.
 [2] = Payload including TOC only, allow m-factor.
 [3] = RFC 3558 Interleave/Bundled format.
EMS: VBR Coder
Hangover
[VBRCoderHangover]
Defines the required number of silence frames at the beginning of each
silence period when using the VBR coder silence suppression.
The range is 0 to 255. The default value is 1.
Web: DSP Template Mix Table
EMS: VoP Media Provisioning > General Settings
[DSPTemplates]
This parameter table allows the device to use a combination of two DSP
templates and determines the percentage of DSP resources allocated
per DSP template.
The format of this parameter is as follows: