CHAPTER72 Configuration Parameters Reference
Mediant 800 Gateway & E-SBC | User's Manual
Parameter Description
■ [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.
configure voip > media
settings > 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.
'AMR Payload Format'
[AmrOctetAlignedEnable]
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). The Coder
Group configuration overrides the parameter.
configure voip > media
settings > amr-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.
'Fax/Modem Bypass Packing
Factor'
configure voip > media
fax-modem > packing-
factor
[FaxModemBypassM]
Defines the number (20 msec) of coder payloads used to
generate a fax/modem bypass packet.
The valid range is 1, 2, or 3 coder payloads. The default is
1 coder payload.
DTMF Parameters
The dual-tone multi-frequency (DTMF) parameters are described in the table below.
Table 72-35:DTMF Parameters
Parameter Description
'DTMF Transport Type'
configure voip >
media voice > DTMF-
transport-type
[DTMFTransportType]
Defines 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 the remote
side according to RFC 2833.
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