received a call and there was no response on the other end, I wanted for several seconds to speak since I didn't recognize the number and when I said hello they hung up

Just called....no message.....Just another robo call wanting to scam us out of something.

Answered, no one there. They disconnected.

No CallerID.  I played along and all of a sudden the script had it that I had called them.  They asked my about my credit report, I said I did not know what on credit report.  They said I should get my credit report and call them back.  But they never gave me a number to call.  I wonder what the exact scam is.

Same as above...dead air.  Have received several calls like this in the past few days from various parts of the country