> so, my conclusion? ... problems ... can be ... traced to the ... > cell phone.... Those studying the use of cell phones for education have come to similar yet entirely sincere conclusions: http://sll.stanford.edu/projects/mobilelearning Live UDP audio has the same kinds of problems as digital cellular for many if not most network paths. Probably way over 99% of everything I've ever heard referred to as "Voice Over IP" or "internet telephony" suffers from the identified issues, and has no place in interactive education. Clearly, traditional telephone users don't want to have to pay to upgrade their existing, satisfactory systems, either; especially when it means no added value and the loss of communication redundancy. In spite of my best efforts, many well-respected and powerful internet companies and their executives have failed to take the simple step of adding value asynchronous TCP for interactive voice. So much could have already been accomplished. Where did I go wrong? Perhaps it is time to engage in all-out satire in the face the insufficiently clued and their minions. What else is left? Sincerely, James
