Doorbell intercom systems allow you to talk to visits using your own telephone. An intercom or door buzzer entry system is installed outside where a normal doorbell would be.
When a visitors rings the bell, your phone rings (usually with a distinctive ring) – and then you can talk to the person at your front door. With optional add-on accessories and locks, you can even open the door with one simple keystroke. Home Controls offers several popular styles and models of wireless video intercom systems, allowing you to communicate with one, two or more doors.