The Norstar Doorphone enables office personnel to talk directly with visitors prior to their entering a business. When a visitor presses the Call Button,the Norstar system rings the designated phone(s) in an office and allows two-way conversation. The optional Door Opening Controller enables any Norstar phone to control a latch on a door or a gate.
ترست بايلوت
منذ شهر
منذ أسبوعين