By now there is no need for me to refer to the numerous articles involving iPhones and the Duke wireless network. I will, though, reference the first article at Network World and the statement to the Duke community now available at the Duke OIT website.
I am aware of the incongruity between some quotations in the original article and the ultimate problem resolution. I regret these inaccuracies. It was not my intent to convey a definitive message at that stage of the troubleshooting.
I extend my thanks to all parties for support (technical and otherwise) resolving this situation quickly and correctly.