Emergency Telephone Color Yellow Material Aluminum Mounting Location Surface Product Type Emergency Call Boxes Features (2) Programmable Auxiliary Outputs for Peripheral Equipment Control 3-Number Rollover Auto Answer Call Pushbutton for Standard Keypad Dialing Call Received when Lit LED Monitored by TMA (Telephone Management Application) Software Rugged Cast-Aluminum Enclosure with Powder-Coated Epoxy Standard or Smart Operation Telephone Line Powered Voice Annunciation Option