The 1600A Series ADA Compliant Emergency Phones are designed to provide quick and reliable handsfree communication for any standard analog telephone line or analog phone system station port. All 1600A Series phones meet ADA requirements for elevator/ emergency telephones, and can be programmed from any Touch Tone phone. The phones can dial up to 5 programmable emergency numbers, as well as 2 central station numbers. In addition, the E-1600-20A and E-1600-52A feature a second "INFO" button that will dial up to 3 non-emergency numbers.