Hi Frederic:
We are evaluating some temporary solutions for virtual classroom feature (like the Blackboard space - screen share, app share, doc share real-time, .etc). I'm going to setup a testing server to test the NEW (http://netlab.gmu.edu/NEW/) project today. Before the Moodle community or the COVCELL could come up with a better solution, we would like to provide our instructors with some temporary solutions.
Just wondering, have anyone tested using Jabber server (e.g. Ejabberd) as an external tool outside of Moodle, to provide online chat feature? If so, could you please share your experience? (e.g. for what kind of server hardware/bandwidth, how many simultaneous clients could be served..etc.). From time to time some of our instructors would invite a "guest speaker" from another remote site to participate on Moodle chat, which had caused some problems before...Thanks!