The QR-code is used here to create a mecard (which is roughly a less detailed version of vcard). Mecard is an electronic business card that can be scanned into a phone or other device equipped with a camera and an app or program that can read QR codes. When the code is scanned, it can be used to directly update the address book on the phone or the like.p>

"QR code is trademarked by Denso Wave, inc."