Smart doorbell devices, like the Ring Video Doorbell, allow you to look out at your front door to see, and even speak to, visitors.h
ttps://setupringdoorbell.com/download-ring-doorbell-app/ The great thing about this kind of tech is you can see who's at the door even when you're not at home. That's because they're kitted-out with high-definition cameras that initiative a VOIP call when they're press. What that means is you can interact with visitors wherever you are using the Ring app.