VideoWhisper Video Consultation is a premium high definition video communication software designed for online video consultations, interactive live presentations, trainings, webinars, coaching and online collaboration.
Requires Wowza 3 or 2.
http://www.videowhisper.com/?p=Video+Consultation
It was designed for few to many 2 way moderated video communication. Moderators control what participant is displayed on main screen (speaker) and can also add an additional participant (inquirer) to ask questions or assist. Participants can change their public status (i.e. request to speak), upload and download room files, text and video chat.
Available integrations:
Elgg | PHP
Joomla | Drupal
Moodle | WordPress