alt Hacker NewsNumber spoofing is not a solved problem because some carriers, which appear legitimate in all other respects, make a business out of routing your traffic over TDM trunks that don't support caller ID verification, and will claim it's extremely expensive to upgrade these to VOIP.
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rjmunro • yesterday at 11:59 AM
I'd be 100% happy to block those carriers from calling me. Their users should just get a message that calling my number is not supported and they should try calling me from another device.
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Fuck 'em? That's not a insurmountable problem in the slightest. Google or Apple could probably solve this problem themselves by simply not ringing the phone for any call that doesn't meet ID verification.