My number is on the do not call list and I received a call from this number advertising a special on air conditioner cleaning and maintenance services. I was in the middle of an important work call and was so annoyed at the interruption that I actually took the time to call them back to inform them that I would be reporting them to the do not call list but the phone just rang and rang with no answer.

Jerks keep calling,  some ac company but I never answer.