This is a home security scam. They had a "screener" guy (a low-level hack) basically check that you're a live body and that you own your home. Then you got transferred to the real scammer who claims he's going to sell you a security system for the low price of $48/month. I wasted nearly 15 minutes of the scammer's time before I had to move on. There's nothing you can do to hurt them more than to waste their time.
This is Home Security Solutions - Selling the 3-in-1 Wireless Home security system.
If you don't answer the call, they will call every hour or so for weeks on in. So far, just today, I have received 5 calls from them.