An incomplete recorded message was left that consisted of the last few numbers of the phone number that was on caller ID followed by "I repeat, that's 3603582739". The recording was in a woman's voice and very clear...no detectable accent. Didn't find out anything by googling the number so I called it back. A male voice answered in some language I could not understand. It sounded like an Oriental language. I hung up. There was a lot of background noise so I am assuming some sort of call center.