Sent to voicemail, but they left no voicemail. I tried calling the number back but it didn't ring and just hung up.

Called left no voicemail

British accented woman on recording invited me to press 1 to redeem my free cruise on Carnival or several other companies. Said I'd signed up for it, but I definitely had not.  Caller ID says Chicago IL.  I hung up and added number to my Ooma block list, which is shared with the community.

dead air