Called my work, caller ID said "Cleaning Basics". Dead air when I answered, they hung up soon after. I was hoping there'd be someone on the line to give me their sales pitch, one of my favorite things to do when work is slow is mess with telemarketers. They waste my time, I waste theirs.
Received the same phone call, I suspect like others, they are checking for live phone numbers. I have blocked them from making future calls with Google Voice so the next time they will get a message that the number is no longer in service.