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Codec
Preference
Frame Size
Silence Compression Status
RTP Payload Type
Encoding Rate (kbps)
FXS information configuration parameters
The following section describes the parameters for the configuration of the FXS information
located at
Configuration
Displays the default codec used by all the channels in the system. One of
the following value is displayed:
•
G.711u
•
G.711a
•
G.723
•
G.726
•
G.729
Select the preference for the corresponding codec entry. Options are 1, 2,
3, 4, and 5.
The following are the default values for the various indices:
•
G.711u - 1
•
G.711a - 2
•
G.723 - 3
•
G.726 - 4
•
G.729 - 5
The Frame Size for the corresponding Codec Entry.
For code G.723, the range is 30 to 120, in increments of 30. Possible
values are 30, 60, 90, 120.
For all other codecs, the range is 10 to 100, in increments of 10. Possible
values are 10, 20, 30, ... , 90, 100.
The default frame size value for G.723 is 30.
For all other codecs, the default value is 20.
Select this check box to enable silence compression for the corresponding
codec entry.
When enabled, no unnecessary noise consumes the bandwidth of the line
when the user is not speaking.
This is currently applicable for G.711a, G.7.26, and G729.
Type the RTP payload type when the codec does not have built-in silence
compression support.
The value ranges from 96 to 127.
This is currently applicable only for G726.
Type the encoding rate for the corresponding codec entry (in kilobytes/
second).
This is currently applicable only for G723. For other codecs, the value is
fixed.
,
SIP, FXO/FXS, FXS tab
SIP advanced configuration
.
193
Configuration Guide
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