Another scam
don't fall for it, legit home security businesses don't call you,
you can find a legit one if you want one either in your local yellow pages or through your insurance company.
the rule of thumb for dealing with unknown callers is:
- never answer the call, let them leave a message if they want
- never call back, it lets them know your number is valid and they sell it to other scammers
- just block them if no message or message is suspicious, my Panasonic phone can block 250 numbers and more than 160 already used. I keep track of blocked numbers in Excel spreadsheet with dates of last and previous to last calls and number of calls, so that I can update the list if it overflows