Hi Mortuo,
Welcome to the board!
Voyager is correct, it is program 71. To be more specific, without going into details, you have to change the assignments in 71-1 to be 0 + the DN or PhDN that you want to ring.
----
^ sorry, I didn't refresh the page to see that you posted
----
I would CF the PhDN, from the owner phone, with a delay of 12 seconds to the VM pilot DN