Version 7.2 429 Mediant 800B Gateway & E-SBC
User's Manual 20. Coders and Profiles
effect.
Table 20-1: Coder Groups Table Parameter Descriptions
Parameter Description
Coder Group Name
[AudioCodersGroups_Index]
[AudioCodersGroups_Name]
Defines the name and index for the Coder Group.
Note: The Coder Group index/name cannot be configured.
[AudioCoders_AudioCodersIndex]
Index row of the coder per Coder Group
Note: The parameter is applicable only to the ini file.
Coder Name
name
[AudioCoders_Name]
Defines the coder type. For coder names, see 'Supported Audio
Coders' on page 429.
Note: Each coder type (e.g., G.729) can be configured only once
in the table.
Packetization Time
p-time
[AudioCoders_pTime]
Defines the packetization time (in msec) for the coder. The
packetization time determines how many coder payloads are
combined into a single RTP packet. For ptime, see 'Supported
Audio Coders' on page 429.
Rate
rate
[AudioCoders_rate]
Defines the bit rate (in kbps) for the coder. For rates, see
'Supported Audio Coders' on page 429.
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' on page 429.
Silence Suppression
silence-suppression
[AudioCoders_Sce]
Enables silence suppression for the coder.
[0] Disable (Default)
[1] Enable
[2] Enable w/o Adaptation
Note:
Option [2] Enable w/o Adaptation is applicable only to G.729.
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. 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.
[0] 0 = Bandwidth Efficient
[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.
20.1.1 Supported Audio Coders
The table below lists the coders supported by the device.
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