-Meets ADA requirements for Emergency Phones: Can automatically light the inchCall Connectedinch 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 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° F to 130° F) - 9 different chassis or board only available - Available in 42inch tall tower phone model E-1600A-BLT-EWP (DOD# 217) - Central Station Monitoring capability (dials 2 numbers) - Optional PB-100 Polling System available (DOD# 232) - Optional BLK-3-EWP strobe light kit available (DOD# 653)