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0 pointseridius6y ago0 comments

It sounds like you're describing IP addresses, except people don't type in IP addresses to go to their bank. They type in domains.

In fact, phone numbers are absolutely the equivalent of domains, and the equivalent of IP addresses in the telephone system is IMSI (I think). You can transfer phone numbers between subscribers, and so the number that you thought was going to your bank could actually some day go somewhere completely different.

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3xblah6y ago· 2 in thread

In the hypothetical, assume you are calling a bank employee on a landline. IMSI is for mobile.

eridiusOP6y ago

Ok, then whatever the equivalent is for landlines. I don't know how telephone numbers are assigned to particular physical lines, but however that's done, it can be changed.

3xblah6y ago

So, a landline phone number that theoretically changes so frequently and without notice to you such that you are encouraged to keep looking it up again everyday. Except you are not expected to perform or monitor that process. Instead it is automated and hidden from you. Imagine this creates risk of fraud by someone pretending to be the bank employee, so then you rely on a third party to "validate" the number you obtain for the bank employee.

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