

Phone numbers need to be memorable. A disposable unique contact does not. You can print a QR code, easily save it to a device, transmit it via nearly anything with a connectible screen. Of course you would want to launch it with alongside phone numbers, not in place of it, but this is what should be the next ‘innovation’ in cellular communication.
That said, it does pose the problem of contacting someone with a phone that isn’t your own, perhaps from jail. I’m sure they would never suggest putting an emergency contact chip in your hand for your own health and safety. No government would ever suggest something so silly. /s
The solution is simple then. Allow businesses to maintain a phone number for people who watch ads on TV. Not like businesses getting spam calls is that big an issue. Though I’m certain they’d be very enthusiastic to have the unique contact QR feature available for tracking in web ads.