Caller id: OHIO CALL. A recorded low black male voice said hello a few times. I hung up and then called back. A recorded message came on and said, "Hello? Hello? Ok, there is no message, I'll just try another time."
Why not? If you think the caller's going to care about what you're doing or the time, or day, you're mistaken. If you're relying on people answering your calls to support yourself, you might be doing it also.