If you get 1 call then you'll likely get many more. So block them and then you're done. In 1 day I got 7 or 8 calls, some of them just minutes apart. Really, really hate these guys!
an annoying & persistent robo caller! my luck ran out after that 1st call yesterday! am now plagued by them calling every cpl hrs! & i Still won't answer. just scum!
Received 4 calls today from 484-200-1584 since 9 am. Does not leave message, calls every 1.5hr. I do not pick up for unknown numbers especially if they don't leave a message.