Yes! It's the NFC phone-bonk doorbell app AT LAST

Knock? Use your phone to call? NO, SCAN the TAG damn you

Home owners too lazy to answer the doorbell can relax as the latest innovation from Doorbl puts visitors in touch via a smartphone tapped to the door.…

via The Register - Networks

http://go.theregister.com/feed/www.theregister.co.uk/2013/05/09/nfc_doorbell_bonkers/