AudioCodes Mediant 800 MSBG - Coder Parameters

Version 6.2 733 February 2011
SIP User's Manual 12. 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 141).
[EchoCancellerAggressiveNLP]
Enables or disables the Aggressive NLP at the first 0.5 second of
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.
[RTPSIDCoeffNum]
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].
12.11.2 Coder Parameters
The coder parameters are described in the table below.
Table 12-30: Coder Parameters
Parameter Description
[EnableEVRCVAD]
Enables or disables 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]
Defines 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]
Determines 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.