I had the same result as George. I've been getting a lot more robocalls since I started looking for a job. I'm going to leave my telephone number off my resume from now on when I respond to blind ads.
To heck with that. Just complain to the FTC. This is in violation of the TCPA (Telephone Consumer Protection Act). If enough people complain, maybe they'll be shut down and/or fined. I'm not wasting my minutes to call these idiots.