I received a call from this number as well. I said hello, heard a "faucet water drop" noise, then i hung up. The number may be Phishing for active numbers to SPAM. Beware.
I picked up and "Hi this is Dan with the security specialists". Wanted to know if I owned the home. Wanted to transfer me to a salesman if I owned a/the home. I repeatedly asked the name of the company and he refused and finally hung up.
Got calls, but did not answer. Used to get them before. If you get these calls you need to say that you do not own the house. "Dan" is a bot by the way.