Are you aware that there is a Federal Do not call list that you can add all your telephone numbers to? ( including cell phones) If you are on that list and someone that you've never done business with calls you, soliciting something, if you can get their Company name, and telephone number, you can report them and supposedly they can be fined $5000.00.
Telemarketing companys are supposed to reference the list before calling anyone.
Just Google Federal Do Not Call List and you can register all your telphone numbers.
I have reported a few who have called me in recent years. I don't know if they were fined or not. But the calls have all but stopped compared to what I used to get.
I have all my numbers on the DNCL. The problem is finding out who they are when they won't answer a direct question and they spoof their CID. Major PITA!!!
Something that is beginning to happen however is ads via cell phone texting. I'm not sure if the Do Not Call law controls that or not but I'm noticing that I'm starting to get them now.