Answered and heard a hang up click. So I called them back on a junk line that nobody answers and got a digitally altered voice telling me that I can press any number to be removed from their list. What that list is, they don't say.
Called again today, I see from the call log. Call as much as you want, Local Marketing (or whatever alias you were using today, CID says Cheyenne WY) - your calls no longer ring my phone, so have at it.