AudioCodes Mediant 2000 User Manual

User's Manual 586 Document #: LTRT-68822
Mediant 2000
45.10.2 Coder Parameters
The coder parameters are described in the table below.
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 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 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] = (Default) Payload only (no header, TOC, or m-factor) -
similar to RFC 3558 Header Free format.
 [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 is 1.
EMS: AMR Coder Header
Format
[AMRCoderHeaderFormat]
Determines the payload format of the AMR header.
 [0] = Non-standard multiple frames packing in a single RTP
frame. Each frame has a CMR and TOC header.
 [1] = AMR frame according to RFC 3267 bundling.
 [2] = AMR frame according to RFC 3267 interleaving.
 [3] = AMR is passed using the AMR IF2 format.
Note: Bandwidth Efficient mode is not supported; the mode is
always Octet-aligned.
DSP Templates Table
Web: DSP Template Mix Table
EMS: VoP Media Provisioning
> General Settings
[DSPTemplates]
This table parameter 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:
[DspTemplates]
FORMAT DspTemplates_Index =
DspTemplates_DspTemplateNumber,

AudioCodes Mediant 2000 Specifications

General

Brand	AudioCodes
Model	Mediant 2000
Category	Gateway
Language	English