Configuring Allowed Video Coder Groups; Routing Sbc; Configuring Classification Rules - AudioCodes Mediant 800B User Manual

29.4

Configuring Allowed Video Coder Groups

The Allowed Video Coders Group table lets you configure up to four Allowed Video Coders
Groups. An Allowed Video Coders Group defines a list of video coders that can be used
when forwarding video streams to a specific SIP entity. Each Allowed Video Coders Group
can be configured with up to 20 coders. The coders can include pre-defined video coders
(according to the installed Software License Key) and user-defined (string) video coders for
non-standard or unknown coders. Allowed Video Coders Groups are assigned to SIP
entities, using IP Profiles (see ''Configuring IP Profiles'' on page 288). The video coders
appear in the SDP media type "video" ('m=video' line). Coders that are not listed in the
Allowed Video Coders Group are removed from the SDP offer that is sent to the SIP entity.
Only coders that are common between the coders in the SDP offer and the coders listed in
the Allowed Video Coders Group are used. Thus, Allowed Video Coders Groups enable
you to enforce the use of only specified coders. For more information, see ''Restricting
Coders'' on page 481.
The order of appearance of the coders listed in the Allowed Video Coders Group
determines the priority (preference) of the coders in the SDP offer. The device arranges the
SDP offer's coder list according to their order in the Allowed Video Coders Group. The
priority is in descending order, whereby the first coder in the list is given the highest priority
and the last coder, the lowest priority. For more information, see ''Prioritizing Coder List in
SDP Offer'' on page 483.
Currently, the Allowed Video Coder Groups table can only be configured using the ini file
parameter, AllowedVideoCodersGroup or CLI command, configure voip/sbc allowed-video-
coders-group group-0. The table below describes this parameter.
Table 29-3: Allowed Video Coders Group Table Parameter Descriptions
Parameter
Allowed Coders Group ID
[AllowedVideoCodersGroupX]
Coder Name
CLI: name
[AllowedVideoCodersGroupX_Name]
29.5

Routing SBC

This section describes the configuration of the routing entities for the SBC application.
These include the following:

Classification rules - see ''Configuring Classification Rules'' on page

Message Condition rules - see ''Configuring Message Condition Rules'' on page

IP-to-IP routing rules - see ''Configuring SBC IP-to-IP Routing Rules'' on page

Alternative routing reasons - see ''Configuring SIP Response Codes for Alternative
Routing Reasons'' on page

29.5.1 Configuring Classification Rules

The Classification table lets you configure up to 100 Classification rules. A Classification
rule classifies incoming SIP dialog-initiating requests (e.g., INVITE messages) to an IP
Group from where the SIP dialog request was received. The identified IP Group is then
used in the manipulation and routing processes. Classification rules also enhance security
User's Manual
Defines an index number for the new table record.
Defines the video coder. This can be a pre-configured
coder or a user-defined coder. The valid value for user-
defined coders is a string of up to 25 characters (case-
insensitive). For example, "WOW.789" (but without quotes).
Note: Each coder type can be configured only once per
Allowed Video Coders Group.
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Description
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