the number is unknown to me.

Caller ID says Security Center.  Asked for me by name when I was out.  Don't know anyone with this number so I'm dubious of the first name familiarity.  Who are you?

It's a call center if you *67 first before calling the number back, the number does not accept unreferenced numbers! It's a frikkin scam and should be handled as such, if you want to have some fun, string them along for a good while and let them think they are taking advantage of you, then tell them that you are recording the conversation, the reaction is priceless!

these stinkin people call me every year despite the fact that I have repeatedly told them not to and that I am on the government's 'do not call' website. and despite the fact that I am a total [***] to them.  I get at least 5 to 6 calls a year.  This year, they tried to tell me it was a personal matter when they asked for the owner by name.  and they said they were from the 'camera dept'.

I usually shut these a-holes down quickly, but I was out and they gave one of my employees hell because she wouldn't give them my cell phone number.