Knock knock. Who's there? The new generation of doorbells

From facial-recognition to dog power, smart technology has come knocking on your door. No, don't get up "

The doorbell, like the landline, is increasingly on its way out. Being in a specific place at a certain time is just not how digital nomads roll. In the past few years, US companies such as SkyBell and DoorBird have offered solutions to the problem of having to be home occasionally by developing doorbells that connect to your smartphone, so you can converse with the deliveryman, passing pal or burglar, whether in or out. The UK's newly launched Ding, though, is one of the first to do it with a design finish that doesn't scream "home security paranoiac with own laser trip wires".