[dmitrygr]

Simpler yet: require every call to come with a physical source address, huge (and enforced) jail times for faking it. Let the internet and the pissed callees crowdsource the rest

[hutattedonmyarm]

This would be an enormous invasion of privacy. Other countries have a lot less issues with spam calls without these measures

[inigyou]

Other countries have this rule, actually. At least most of Europe records your passport and address.