Smart door locks and video doorbells are great conveniences for those who live in single-family homes, but what about the millions of people who live in flats, apartments, and condos? They might also like to answer their front door from their phone — whether they’re home or not — and perhaps buzz their visitor in without getting off the couch or rushing home from the office. Ring, maker of the original video doorbell, thinks it has a solution.
Ring Intercom is a DIY, retrofit…
