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It wouldn't really need to be mandatory, just something that cell providers and reputable businesses provided. Then phone companies could start rejecting anythi
by EamonnMR 8y ago
It wouldn't really need to be mandatory, just something that cell providers and reputable businesses provided. Then phone companies could start rejecting anything that didn't provide it.
- craftyguy 8y ago... so, make it mandatory
- cm2187 8y agoBut how does the telco in the last node know the caller id is accurate? They can only tell that the data is coming in that direction but it could have been routed multiple times before (if phones work like the internet protocol). The only telco who can ensure that must be the one who initiated the call (exactly like IP spoofing).