Well, it’s not quite that simple- especially for an end user. I don’t have the ability to trace it- and even if I did most of the scam calls I get these days are from overseas voip providers. So I have to invest a lot of time to get to a U.S. based business that benefits from the calls. Even then, the tcpa may not allow you to collect (some state laws do)
It is difficult enough that there is a full on coalition dedicated to this (the trace back working group that’s mentioned by the fcc in this order)
You don't have to trace it yourself. The simple solution is: a online portal, you report a spam call to your number with time and origin as you see it, your telco is required to act on that, FCC or someone else gets to audit and assign fines. From there it would be each telco's responsibility to do the same from their end.
Trivial for the user, and likely apps would be created to automate it. As I mentioned, international VoIP providers are not an issue if you make it a local telco problem: whether they forward the cost of the fines, drop the peer, or pay the fine themselves. Any serious telco abroad will solve the outbound spam to the US rather than get dropped.
It is difficult enough that there is a full on coalition dedicated to this (the trace back working group that’s mentioned by the fcc in this order)