How can I download a contact to my phone using a QR code?

Question

QR codes

Previously, I sewed the product identifier into the barcode.
I would like to understand - is it really possible to sew a phone number with the name of a contact into a Quarcode or Barcode and when you hover the phone with a scanner, save it to the contact list?
What should be the format of a certain storage of information maybe?

Answer 1

Yes, you can.
To do this, you need to encode vcard in qr code: https://en.wikipedia.org/wiki/VCard