Cox port blocking

I spent most of the day trying to figure out why my new Barix Instreamer wouldn't audio stream to a Barix Exstreamer over the Internet using the Barix default HTTP/TCP port 80. Well it turns out that Cox is blocking port 80 and a bunch of other ports. Maybe you all knew this but I sure didn't. See http://www.cox.com/residential/support/internet/article.cox?articleId=cacf82f0-6407-11df-ccef-000000000000