Guess what? When you call forward to them, it your phone number that shows up on their caller id. Expect more calls from them as well as other scammers.
They called twice in a minute. It's some fake company selling home security systems. They want to know if you have a system now, what kind it is and what time you will be available for them to come in to install the new one. ALL MEMBERS OF THE HOME MUST BE HOME WHEN THEY INSTALL. This is so they can tie everyone up one up at the same time, rape you, kill you, rob you and leave less of a chance for someone walking in on them