A man called and asked to speak to someone who could tell him about our "building materials." We are a lumber company. I told him that our sales man was not in the office, and asked if he would like for me to have him call him back from his mobile. He quickly said he didn't think the salesman was the one he needed to talk to, but instead of asking for someone else he said "I'll just call back later," and hung up quickly. This sounded very suspicious, so I suspect he is a telemarketer fishing for information.
At least three calls and two voice mail hangups in one day - one recording of a woman's voice carrying on a conversation, but not talking to me or my machine. Annoying!