Got a voicemail from this number, along the lines of: random noise for a couple seconds, like in a telemarketer call, then a woman says "Hi it's Marlene, I see you took Friday off. Could you let me know if that was a vacation day or a *mumble* or...? Call me back" then she hung up. Very business like, but there's is no one named Marlene at my company and there is no protocol like that where I work.