Fahrenheit 451 Fire & Security - security
What is an Intercom Door Entry System?
Intercom door entry systems are a state-of-the-art security system installed to provide you and your guests with an increased level of security.
The system operates with your existing telephone. Your guest simply dials the code number next to your name on the entry panel directory and your telephone will ring. When answered you will be in communication with your guest. To unlock the door, dial “9″ from your telephone. To refuse entry, simply hang up.
How does this system work?