Viking Elevator Phone Kit/Same Meets ADA requirements for Emergency Phones: Meets ADA requirements for Emergency Phones: Can automatically light the Call Connected LED for the hearing impaired Transmits a unique location I.D. code or voice announcement Grade 2 Braille label for the visually impaired Non volatile digital voice announcer with 16 seconds of voice memory Advanced call progress detection Handsfree operation Phone line powered volatile memory (no batteries required) Marine grade 316 stainless steel prevents corrosion on stainless models Dials up to 5 emergency numbers Cycles through backup emergency and non emergency numbers on busy or no answer Optional Enhanced Weather Protection (EWP) EWP products are designed to meet IP66 Ingress Protection Rating see DOD#859 Hangs up on CPC silence busy signal dial tone time out or touch tone command Programmable to auto answer on incoming calls