Meets ADA requirements for Emergency Phones:- Can automatically light the In.Call ConnectedIn. 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- Non-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- Remotely programmable- Extended temperature range -15 Degrees F to 130 Degrees F- 9 different chassis or board only available- Available in 42In. tall tower phone model E-1600A-BLT-EWP DOD# 217- Central Station Monitoring capability dials 2 numbers- Optoinal PB-100 Polling System available DOD# 232- Optional BLK-3-EWP strobe light kit available DOD# 653