I think you should walk into any new elevator and look at the inspectors name that is posted on the wall of the elevator and give him a call. Here in SC you must have a dedicated telephone line. The problem with having it "ringdown" to other extensions in the building is what if someone gets stuck in it at night if it is a building that usually only has staff during the day ? We used to put in the push button style and program it to ring 911,but a monitoring company would seem to be the best idea.
