You don't need to go all orwellian though. Just charge a security fee that makes spamming or scamming unprofitable for every call and add a simple way for the r

You don't need to go all orwellian though. Just charge a security fee that makes spamming or scamming unprofitable for every call and add a simple way for the recipient to mark calls as wanted or unwanted. Wanted calls get a refund.