Perhaps have the option of charging say 2 cents if somebody calls you. An exception list would allow friends and family for free. Phone spam is a growing proble

Perhaps have the option of charging say 2 cents if somebody calls you. An exception list would allow friends and family for free. Phone spam is a growing problem because it's too cheap to robo-call millions of people. If spammers have to pay more, they'll cut down. Plus, money is easier to track. Same for email: we need e-stamps.