Supported Audio Coders - AudioCodes Mediant 4000 SBC User Manual

User's Manual
Table 20-1: Coder Groups Table Parameter Descriptions
Parameter
Coder Group Name
[AudioCodersGroups_Index]
[AudioCodersGroups_Name]
[AudioCoders_AudioCodersIndex] Index row of the coder per Coder Group
Coder Name
name
[AudioCoders_Name]
Packetization Time
p-time
[AudioCoders_pTime]
Rate
rate
[AudioCoders_rate]
Payload Type
payload-type
[AudioCoders_PayloadType]
Silence Suppression
silence-suppression
[AudioCoders_Sce]
Coder Specific
coder-specific
[AudioCoders_CoderSpecific]

20.1.1 Supported Audio Coders

The table below lists the coders supported by the device.
Version 7.2
Defines the name and index for the Coder Group.
Note: The Coder Group index/name cannot be configured.
Note: The parameter is applicable only to the ini file.
Defines the coder type. For coder names, see ''Supported Audio
Coders'' on page 411.
Note: Each coder type (e.g., G.729) can be configured only once
in the table.
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 411.
Defines the bit rate (in kbps) for the coder. For rates, see
''Supported Audio Coders'' on page 411.
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 411.
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).
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.
411
20. Coders and Profiles
Description
Mediant 4000 SBC