From Viscount Communication and Control Systems, the EmerPhone 200 series allow users to connect to preprogrammed assistance locations by pressing a button or lifting an armored handset. The housings are 16-gauge stainless steel and are for elevators or areas where vandalism is a problem. The units come with DTMF digital locator signals. Relays to release doors or gates are optional, as are strobes, sirens or other location identification devices.