Honestly I'm at the point where I'm like lets just kill the POTS. It makes little sense to me that it's become a sort of user ID for many things, that we have better alternatives (WebRTC, FaceTime et al) that we should push. Like where it currently says "Telephone number" i should be able to put in a URL like "webrtc://<a pseudonym for my IMEI>" (which itself could be a dropdown box for "This device" on the phone itself...)
For example, why isn't it the default that when a telemarketer calls me it's not a video call? And why can't I preview their video stream prior to answering?
I get its "impossible" to make everyone change, but i do think we should push forwards...
Careful, you are one capital letter 'U' away from having the FBI, NSA, SWAT team at your door!
IMEI is tied to the physical phone, Facetime is Apple-specific, idk what the webrtc option would be. I'm actually glad phone won as digital ID, not cause it's the best choice but because it could've been a lot worse.