In this section:
Use the Reason window to specify which call termination reason codes are included in a specified crankback profile. A crankback profile consists of a list of call release codes that the SBC uses to determine whether to reroute (or "crankback") a call if the call does not connect successfully to the initial destination. If egress signaling returns a release code that is in the reason code list in the crankback profile, the SBC attempts to reroute the call. If a release code is not in the list, the SBC returns the release code to ingress signaling rather than attempting to reroute the call. Refer to Call Routing - Crankback Profile for more information.
On the SBC main screen, go to Configuration > Profile Management > Category: Call Routing Profiles > Crankback Profile > Reason or
All > Profiles > Call Routing > Crankback Profile > Reason
In Crankback Profile, select a profile to view its currently configured reason list. For a new profile, the list is empty.
To add a reason code to a crankback profile:
The Create New Reason window opens.
Use the following table to configure the options and then click Save.
Reason Parameters:
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Reason Code | Enter the number of a call termination reason code that you want to trigger crankback when it is returned by egress signaling. The value must be between 0-255. Refer to Call Termination Reason Codes for the call termination reason codes list. |
Use Location | Select Enabled if you want to associate a location with the reason code. When a location is configured and enabled, the specified location value must be included along with the reason code in the egress disconnect signaling to trigger crankback. Including a location with a reason code is optional. If you choose to enable using a location value, use the Location window to specify one or more location values to associate with the reason code.
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To edit a reason code in the list to change its Use Location Value setting:
To delete a reason code from a crankback profile: