Your home is your fortress! Increase your family's confidence and protect your assets with an access control system. When your guests arrive they will push the call button at the intercom unit outside, your home or cell phone will ring (usually with different tone than your regular call). By answering the call you'll be able to talk to your guest and open the gate/door just by pushing a button on your phone. Most intercom units have a built in camera option, that way you're also able to see the person outside and allow entry confidently. Some systems combine a numeric keypad along side the intercom. By entering the code, the gate/door will open for a brief moment allowing your guest or family to come inside safely.