this post was submitted on 24 Sep 2024
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@blaine there might not be an authority for a phone number but i think it can be handled more like a combo of "local dns resolver" + "registry of phone number". sure in many cases with identifiers that have an authority component you can just use their webfinger if they have one, but i think it would also be cool to be able to use your own webfinger and "proxy out" as needed, in the same way that dns does it
@[email protected] @[email protected] wait aren't 0 and 1 authorities ? if it starts with 2-9, it's a number in the same area code as you're dialing out from, starts with 1 diff area code, starts with 0 diff country code...
@by_caballero @trwnh this would work except for the specific way that number portability is implemented. 😅 At least historically, and very likely still today, the "database" used to map phone numbers as assigned by exchange blocks (i.e., to a given carrier) to phone numbers that have been ported to a different carrier by the customer (under number portability laws) was a set of spreadsheets synchronized by FTP at intervals. Access to said "databases" is entirely contractual.
@by_caballero @trwnh so _in theory_ PSTN operators could provide a lookup system, but it'd be jank af at best, and more likely it would be a horrendous unfixable security disaster.
@blaine @by_caballero i was thinking more that you could declare a tel: as one of your "aliases" at your authoritative wf and then it percolates through the rest of the system
@[email protected] @by_[email protected] since tel: is extremely fraught, especially nowadays with insane phone spam etc, a Signal/WhatsApp/etc address might be a good alternative example?
I particularly like the "established encrypted messenger" example because the wf->[rel=messenger]-> lookup could get Fedi encrypted DMs "for free."
(obviously lots I'm glossing over that make it more complicated, but in theory it'd be less complicated than many alternatives)
@[email protected] @by_[email protected] (one thing to note is that it's not possible to declare an alias, e.g. a phone number in a wf or other profile, and then use that alias in reverse as a way to look up the original profile. I mean, one could do it, but with questions of identity at play it would be an incredibly very extremely bad idea to do that from every conceivable security perspective.)