Combating Spoofed Robocalls with Caller ID Authentication | Federal Communications Commission
Read what the FCC is asking the phone companies to do. So far, promises, promises from the phone companies. I agree, the scammers likely will always be a step ahead. Incidentally, I don't have a land-line, I have VoIP, and that in itself is a problem. Since so many data bases get hacked, it's easy to get names and numbers of telephone subscribers, including mobile numbers. I get daily robocalls on my mobile phones as well.