AI is still dog shit for 99.9% of applications, we're not playing chess here. It would add an insane amount of complexity and points of failure for an edge case. If it even fucks up once it would need to be retired.

I know HN loves to think raw tech will save the world but come on... this is a societal problem, not a tech problem

Even if caller id had been used in this situation, he could have easily spoofed the number to appear to be coming from the neighbors house since they would have already had all the information necessary to do so. The Caller ID system you're thinking of simply does not exist. The current system is much to easy too spoof. Anyone with $15 and a VoIP number can do it.

Notably, the caller was identified, it seems. The problem wasn't identifying the caller, rather taking his accusation at face value.