I am making an assumption here that there is only one interface to the customer's page equipment.
This would mean that you should be able to take a butt set, connet to the page equipement interface, hear a "buzz" tone, and then dial a page zone from there.
If this is the case, you must connect to a LS trunk port not the page port. Then set up a ARS route for paging.
Are my assumptions correct?
Ralph