CSCF Enforce Codec Policy Configuration Mode Commands


CSCF Enforce Codec Policy Configuration Mode Commands
 
 
The CSCF Enforce Codec Policy Configuration Mode is used to manage audio and video codec policies within the system. The parameters defined in this chapter are derived from IETF RFC 3551: “RTP Profile for Audio and Video Conferences with Minimal Control”.
 
Important: The commands or keywords/variables that are available are dependent on platform type, product version, and installed license(s).
 
dynamic-codec
Creates a list of dynamic codecs supported by the system.
Product
SCM
Privilege
Administrator
Syntax
dynamic-codec { audio encoding_name | video encoding_name } [ clock_rate ] [ channels ]
default dynamic-codec
no dynamic-codec [ encoding_name ] [ clock_rate ] [ channels ]
audio encoding_name | video encoding_name
audio encoding_name: Specifies the encoding name of the dynamic audio codec added to the allowed codec list. encoding_name must be from 1 to 49 alpha and/or numeric characters.
video encoding_name: Specifies the encoding name of the dynamic video or audio-video codec added to the allowed codec list. encoding_name must be from 1 to 49 alpha and/or numeric characters.
[ clock_rate ] [ channels ]
clock_rate: Specifies the sampling rate of the codec. clock_rate must be an integer from 0 to 1000000.
channels: Specifies the number of channels required by the codec. channels must be an integer from 1 to 1000000.
Valid dynamic audio codecs:
Valid dynamic video codecs:
default
Specifies that the default list of dynamic codecs is added to the allowed codecs list. Default dynamic codecs: H263 and AMR.
no dynamic-codec [ encoding_name ] [ clock_rate ] [ channels ]
Specifies that all dynamic codecs are removed from the allowed codecs list. If an encoding_name is specified, then only the codec specified by the encoding_name is removed. Furthermore, if a supporting clock_rate and/or channels are specified, then only the encoding_name with the specified clock_rate and/or channels is removed.
Usage
Use this commands to create a list of supported dynamic audio and video codecs in the system. When a request is received by the CSCF, the SDP fields in the message are checked to determine the codec being used. The codec in the SDP fields must match a codec in the allowed codec list or the CSCF rejects the request.
Example
The following command adds the GSM-EFR codec to the allowed dynamic codec list:
dynamic-codec GSM-EFR
 
end
Exits the current mode and returns to the Exec Mode.
Product
All
Privilege
Administrator
Syntax
end
Usage
Change the mode back to the Exec mode.
 
exit
Exits the current mode and returns to the previous mode.
Product
All
Privilege
Administrator
Syntax
exit
Usage
Return to the previous mode.
 
static-codec
Creates a list of static codecs supported by the system.
Product
SCM
Privilege
Administrator
Syntax
static-codec { audio payload_type | video payload_type }
default static-codec
no static-codec [ payload_type ]
audio payload_type | video payload_type
audio payload_type: Specifies the audio codec added to the allowed codecs list. payload_type must be an integer from 0 to 95. Default value is 5.
Valid static audio codecs:
video payload_type: Specifies the video or audio-video codec added to the allowed codecs list. payload_type must be an integer from 0 to 95. Default value is 5.
Valid static video codecs:
default
Specifies that the default list of static codecs is added to the allowed codecs list.
The default static codec is 5: DVI4.
no static-codec [ payload_type ]
Specifies that all static codecs are removed from the allowed codecs list. If a payload_type is specified, then only the codec specified by the payload_type is removed.
Usage
Use this commands to create a list of supported static audio and video codecs in the system. When a request is received by the CSCF, the SDP fields in the message are checked to determine the codec being used. The codec in the SDP fields must match a codec in the allowed codec list or the CSCF rejects the request.
Example
The following command adds the G729 audio codec to the allowed codecs list:
static-codec 18
 
 

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