I remember back in the early 2000s getting pestered by a particularly annoying junk fax spammer calling my home line every morning at 4-5AM. Fortunately, thanks to being an early adopter of VOIP, and someone with more free time than I have now, I could have a little fun. Turned out the origin numbers for the junk fax calls were not spoofed, and always came from a block of phone numbers that matched a pattern. So I did a few simple web searches and identified the company behind it (some marketing company in Florida). It didn&#x27;t take too long to get the personal phone number of that company&#x27;s CEO. Then just programmed the VOIP box to forward all calls from that pattern of numbers back to the company&#x27;s CEO. It took about a week for the calls to stop.