You on DNC list? Why do they call your number? Because donotcall.gov is a joke. They don't do squat.
I think I reported some outfit in WA state about 3 times and they still are calling. Ergh!
The whistle doesn't do squat. Their phones are volume controlled. It won't hurt their ears. Hang up quickly and report them to donotcall.gov and then get on the website of your phone provider and block their calls.