I am familier with Aiphone, but I dont think this is an Aifone application. Here is the deal. Customer is looking for a system where they have a panel at the front door, person presses button and it rings in office. Here is the kicker... they want it to ring on their office phone and allow anyone with a desk phone to open it. I really just need a dialer in the outside panel I am guessing that rings the office number. .. then they press * and it unlatches the door. I know they make this.. but no idea who makes it.