Called twice on my cell as well. I didn't answer and they left messages saying "If you allow us to place a small sign in your yard we will install a system absolutely free." What a scam. the message did say to press 9 to be added to do not call list. Couldn't do that since it was a message I was listening to.
This number just called my work line and had the same message about FBI reporting break-ins, and if I was willing to put a small sign in my front yard I could get security for free. I listened to the entire message and then pushed #9 to be added to the do not call list.