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  • IsRedirectionLoopConfigured


    VBScript   → Lua


    This function returns True if the current script user has an unconditional redirection to a user configured, where the current call already has been (in his call routing).

    Please see the Introduction chapter for some usage instructions.


    ' IsRedirectionLoopConfigured 
    ' Checks if the undonditional redirection target of the script user is
    ' already in the PreviousScripts list, i.e. the call was previously already in that user's call routing.
    ' Parameter:
    ' Return:
    '   boolean 
    Function IsRedirectionLoopConfigured
        PBXScript.OutputTrace "-------------> IsRedirectionLoopConfigured"
        Dim bReturn
        bReturn = False
        If PBXUser.UnconditionalRedirect Then
            Dim sRedirectToUser
            sRedirectToUser = GetUserNameFromExtension(PBXUser.UnconditionalRedirectNumber)
            Dim Script
            For Each Script In PBXScript.PreviousScripts
                PBXScript.OutputTrace "Found user " & User.Name
                If sRedirectToUser = Script.UserName Then 
                    PBXScript.OutputTrace "Found redirection target in the PreviousScripts list. So this is most likely a loop!"
                    bReturn = True
                End If
        End If
        IsRedirectionLoopConfigured = bReturn
        PBXScript.OutputTrace "bReturn = " & bReturn
        PBXScript.OutputTrace "<------------- IsRedirectionLoopConfigured"
    End Function


    This function makes use of the function GetUserNameFromExtension to get the username of the destination the current script user has an unconditional redirection configured to. Afterwards it uses the Server Script API function PBXScript.PreviousScripts to search the username in the list of previous call routing scripts. 


    Once this function returns true the idea is to disabled the unconditional redirection to prevent a loop.


    If IsRedirectionLoopConfigured Then
        PBXUser.UnconditionalRedirect = False
    End If



    There is another function IsLoopConfigured available, following another approach to identify an existing call loop.


    Please take a look into the How to avoid loops topic for more details.

    This function was initially posted into this forum topic.



    Tom Wellige


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