Same thing here!

I am suspicious about why someone is calling my number and wanting to know about whether I have security around my home.

Asian sounding caller wanted to know about my security. Told him of the no call list kept insisting I was not on his list. Told him to delete me from his calls very argumentative repeating my security system. Again told him to delete me from his call list or I would report him to the national do not call list. Kept arguing about my security system. Hung up on him before telling him that I would report a complaint about him which I am just about to do.

The best thing to do is to get as much information and then lodge a formal complaint as he just wants to wear you down and argue.

somene is calling and not saying anything

I am suspicious about why someone is calling my number in a rural area and wanting to know about whether I have security around my home.

twice today, when i call they hang up