that's what i thought. if he actually needed help he would have been able to call. but the real failure here is that phone technology is still so bad that it i

that's what i thought. if he actually needed help he would have been able to call. but the real failure here is that phone technology is still so bad that it is not possible to reliably identify callers. caller-id exists, but feels like a hack, is not working relibaly, and is spoofable. is there no way to have a trustable registry of numbers (not all of them but say any service that legitimately needs to be able to cold-call people) that can be built into every phone? a whitelist of known numbers?