I sure am getting a lot of calls with nobody on the line. It happens nearly every day. I suspect it's robo-calling from boiler rooms, but no scammer is available to take the call.

I think we should discourage this by making it expensive. By law, change all commercial phone rates so there is no bulk rate. Every call cost them a dime. I think businesses would be a lot more careful so they only called when someone is ready to talk. You could still have unlimited calls on cell phones and private land lines.