I was sitting at my desk a few minutes ago when I heard a duck call echoing down the corridor. Then, that inimitable John Chambers laughter. With my trusty Flip Mino HD video camera in hand I strolled into Chambers office to capture the duck call for you, our loyal readers. His lesson was brief, but it is very clear that he is a man of many talents.Please respond with your video duck calls on this blog…or as a video response on our Cisco YouTube PR channel. We’ll post them.And, the best duck call gets a new Flip Mino HD from John Chambers.