[wpskidd]

I think this a great challenge to propose to the HN crowd. Who wouldn’t pay for a system that truly eliminates the annoyance of spam calls? What about a private network that people could subscribe to that uses a decentralized social credit system? Or one that uses a monitoring gateway to track the number of calls originating from a number (either internal or external to the subscriber group), and treats mass callers with extreme prejudice. A blacklist of known spammers could be applied first as a default (rather than as an add-on app). If you wanted to get really creative, you could give subscribers the tools to add numbers to their own black list far more easily than they now can, and maybe even block whole geographic regions.

[dao-]

> Who wouldn’t pay for a system that truly eliminates the annoyance of spam calls?

Anyone in a region with sensible legislation.