CHAPTER19 Coders and Profiles
Mediant 1000 Gateway & E-SBC | User's Manual
Parameter Description
'Rate'
rate
[AudioCoders_rate]
Defines the bit rate (in kbps) for the coder. For rates, see
Supported Audio Coders.
'Payload Type'
payload-type
[AudioCoders_PayloadType]
Defines the payload type if the payload type (i.e., format of
the RTP payload) for the coder is dynamic. For payload
types, see Supported Audio Coders.
Note: GSM-FR and MS-GSM coders use Payload Type 3.
When using SDP, it is not possible to differentiate between
the two. Thus, it is recommended to configure only one of
these coders in the table.
'Silence Suppression'
silence-suppression
[AudioCoders_Sce]
Enables silence suppression for the coder.
â– [0] Disable (Default)
â– [1] Enable
â– [2] Enable w/o Adaptation
Note:
â– Option [2] Enable w/o Adaptation is applicable only to
G.729.
â– If you disable silence suppression for G.729, the device
includes 'annexb=no' in the SDP of the relevant SIP
messages. If you enable silence suppression,
'annexb=yes' is included. For the Gateway application,
an exception is when the remote gateway is Cisco
equipment (IsCiscoSCEMode).
'Coder Specific'
coder-specific
[AudioCoders_CoderSpecific]
Defines additional settings specific to the coder.
Currently, the parameter is applicable only to the AMR
coder and is used to configure the payload format type.
â– [0] 0 = Bandwidth Efficient
â– [1] 1 = Octet Aligned (default)
Note: The AMR payload type can be configured globally
using the AmrOctetAlignedEnable parameter. However, the
Coder Group configuration overrides the global parameter.
Note: Currently, the parameter is reserved for future use.
Supported Audio Coders
The table below lists the coders supported by the device.
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