works both as doorbell and interphone

wireless calling system 2 keys waiter call button

wireless calling system 2 keys waiter call button

wireless calling system 2 keys waiter call button

guest calling button for ordering meal or call waiter

guest calling button for ordering meal or call waiter

guest calling button for ordering meal or call waiter

Take a queue number after the customer order

transfer wireless signal to wired signal large distance repeater transfer wireless signal to wired signal large distance repeater transfer wireless signal to wired signal large distance repeater transfer wireless signal to wired signal large distance repeater