I’ve been answering questions at the Information desk at the Ask the Experts area and meeting up with lots of people. Thank goodness most of the questions have been about where someone is as opposed to how do I do this, and there have been several challenging questions that I’ve had to research.
This one – which made me think, and look up the answer, referred to bandwidth use in the RTC client. There’s a good document on MSDN which talks about the media support in the RTC platform.
A couple of other useful papers
Microsoft Real-Time Communications: Protocols and Technologies
Net Meeting (used for app sharing)