I have been on the "Do not call" list for many years. I abhor these telemarketer calls and wish there was something we could do about them. The "List" does not work.
Please re-read the Do Not Call law. It doesn't cover charities, fundraisers, survey takers, debt collectors, or a business you have had a business relationship with within the past 12 months. A law can't be enforced if the caller is exempt under the law.