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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.

To View the Reason List 

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

To add a reason code to a crankback profile:

  1. The Create New Reason window opens.

  2. Use the following table to configure the options and then click Save.
    Reason Parameters:


    Parameter


    Description

    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
    Value

    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.

    • Enabled
    • Disabled (default)

To Edit a Reason Code

To edit a reason code in the list to change its Use Location Value setting:

  1. Click the radio button next to the specific reason code. 
  2. Click to select a value for Use Location Value.
  3. Click Save.

To Delete a Reason Code

To delete a reason code from a crankback profile:

  1. Click the radio button next to the specific reason code that you want to delete. 
  2. Click the Delete (X) icon at the end of the row.
  3. Confirm the deletion when prompted.
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