I missed the call, so I called back. It was another of the WN Positions bogus robocall calls. They said I filled out something online that indicated I was looking for a job. I do not remember ever doing so, but listened. They said press 1 to speak to a representative or press 2 and enter your number to be removed. I pressed 2 and feel like an idiot now because I did enter my number, which I am guessing validates the number. I called back and pressed 1. They ask you a series of questions and it is a very slick computer system that uses voice recognition. It is not a human being. It was going to ask me some personal questions to validate. I hung up. This is a scam and I'm guessing may eventually be prosecuted for wire fraud.
I just received a call from this number and picked up. I said "hello" twice and after a second or two of silence, there was an automated voice that said "goodbye" and hung up on me. Very weird.
I just had the same experience as Jessica - automated voice that said "goodbye". Next time I'm not answering any unknown numbers unless they leave a legit message.