Delete ss7-cpc from Header

Hi. I need to delete  the ss7-cpc element in from header.

initial INVITE From: <sip:1151703456;ss7-cpc=10;cpc=ordinary@sipgw5000.com:5060;user=phone>;tag=SDebtm601-6994114410739271810

final INVITE   From: <sip:1151703456;cpc=ordinary@sipgw5000.com:5060;user=phone>;tag=SDebtm601-6994114410739271810

And i was created this sip-manipulation

sip-manipulation

        name                                    DEL_SS7CPC

        description                           

        split-headers                          

        join-headers                           

        header-rule

                name                                    From

                header-name                             From

                action                                  manipulate

                comparison-type                         case-sensitive

                msg-type                                any

                methods                                

                match-value                            

                new-value                              

                element-rule

                        name                                    borross7CPC

                        parameter-name                          ss7-cpc

                        type                                    uri-user-param

                        action                                  delete-element

                        match-val-type                          any

                        comparison-type                         case-sensitive

                        match-value                            

                        new-value                              

But when I run the test-sip-manipulation with a next INVITE, the result not change anything