Coder Parameters; Dtmf Parameters - AudioCodes Mediant 800B User Manual

User's Manual

54.9.2 Coder Parameters

The coder parameters are described in the table below.
Parameter
Silk Tx Inband FEC
CLI: silk-tx-inband-fec
[SilkTxInbandFEC]
Silk Max Average Bit Rate
CLI: silk-max-average-bitrate
[SilkMaxAverageBitRate]
EMS: VBR Coder Header
Format
CLI: VBR-coder-header-format
[VBRCoderHeaderFormat]
EMS: VBR Coder Hangover
CLI: VBR-coder-hangover
[VBRCoderHangover]
Web: AMR Payload Format
[AmrOctetAlignedEnable]
EMS: AMR Coder Header
Format
[AMRCoderHeaderFormat]

54.9.3 DTMF Parameters

The dual-tone multi-frequency (DTMF) parameters are described in the table below.
Parameter
Web/EMS: DTMF Transport
Type
CLI: DTMF-transport-type
Version 6.8
Table 54-36: Coder Parameters
Enables forward error correction (FEC) for the SILK coder.

[0] Disable (default)

[1] Enable
Defines the maximum average bit rate for the SILK coder.
The valid value range is 5000 to 30000. The default is 16000.
Note: The SILK coder is Skype's default audio codec used for
Skype-to-Skype calls.
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.
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.
Defines the AMR payload format type.

[0] Bandwidth Efficient

[1] Octet Aligned (default)
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.
Table 54-37: DTMF Parameters
Determines the DTMF transport type.

[0] Mute DTMF = DTMF digits are removed from the voice
stream and are not relayed to remote side.
795
54. Configuration Parameters Reference
Description
Description
Mediant 800B Gateway and E-SBC