"Press One" Telephone Scam. It happened to me again today, but I didn't fall for it.
If you haven't heard about it... this is how it goes. Your phone rings and you get a recorded message that sounds legit. It can be about anything. At the end of the call, they ask you to "press one" to reach the office or a department or whatever.
As soon as you do, you allow a hostile takeover of your phone system and your next phone bill will be in the thou$ands. For more information, just google the topic.