I'm not sure you understand what "exempt" means. Yes, non-sales calls are not covered by the Registry. Fraudulent calls are the very sort not in compliance with the DNCR. Any cold sales caller ringing a registered number violates the Telemarketing Sales Rule.
Asked for the "man or the woman of the house" -- I ended the call without responding. Obviously, nobody I knew and, since I'm on the "do not call" list --- this shouldn't have happened. What good is being on the No Call List if it doesn't stop these folks?