After I gave my normal answer, "Thank you for calling __________, how may I help you?" A gentleman kept saying "hello... hello, can you help me. hello, yes please transfer my call to your IT Manager" (which he asked for by name). It was odd and when questioned about his call, he said he was with RedHat and needed to send our IT Manager some documents. This call seemed really odd...
I also had a call -- the man was speaking very loudly and his English was difficult to understand. He kept asking if he could send me an email and if I would assure him that I'd open it. He seemed to want me to say "YES" so he could record this reply. The next day I had charges from a gas station in Michigan. Weird. Had to cancel my credit card.