Dtmf Parameters - AudioCodes Mediant 4000 SBC User Manual

User's Manual
Parameter
configure voip > media settings
> vbr-coder-hangover
[VBRCoderHangover]
AMR Payload Format
[AmrOctetAlignedEnable]
configure voip > media settings
> amr-header-format
[AMRCoderHeaderFormat]

60.10.3 DTMF Parameters

The dual-tone multi-frequency (DTMF) parameters are described in the table below.
Parameter
DTMF Transport Type
configure voip > media voice >
DTMF-transport-type
[DTMFTransportType]
DTMF Volume (-31 to 0 dB)
configure voip > media voice >
DTMF-volume
[DTMFVolume]
Version 7.2

[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)
Note: The AMR payload type can also be configured per Coder
Group (see Configuring Coder Groups on page 409). The Coder
Group configuration overrides the parameter.
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 60-36: 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.

[2] Transparent DTMF = DTMF digits remain in the voice
stream.

[3] RFC 2833 Relay DTMF = (Default) DTMF digits are removed
from the voice stream and are relayed to remote side according
to RFC 2833.

[7] RFC 2833 Relay Decoder Mute = DTMF digits are sent
according to RFC 2833 and muted when received.
Note: The parameter is automatically updated if the parameters
FirstTxDTMFOption or RxDTMFOption are configured.
Global parameter defining the DTMF gain control value (in
decibels).
883
60. Configuration Parameters Reference
Description
Description
Mediant 4000 SBC