Got a call from this number today, calling about my "Windows computer". I told the guy I run Linux and have no Windows computers in my home. Went from talking heard in the background, to dead air, to a disconnected call.
I'm fairly certain it was the "hidden virus" scammers at it again.

They informed me that they have detected a virus on my windows computer.  When I thanked them and told them I would notify my IT Department they hung up.

Called about my windows computer. Told them we had no windows computer. He said we had one registered. We hung up.

I just got a call from this number, I heard a ding sound...like a bell...then "Goodbye" and the call was disconnected. Its 9:30 at night! When I called back it said the call could not be completed as dialed. What the heck?

Man with an India accent said something about my "Windows computer." I asked, "What if I don't have a Windows computer?"  **Click** He hung up.