The EV-1 is a perfect solution to help make your elevator/emergency phone ADA compliant.
The EV-1 is a line powered emergency voice announcer designed to add a natural voice announcement to any telephone. The announcer provides 10 seconds for non-volatile voice record time that can be used to communicate the location for an emergency phone, or a piece of malfunctioning equipment.
The announcement repeats continuously after the call has been answered. Emergency personnel can stop and start the announcement at will by dialing a Touch Tone "*".