Joomla extensions. Info and link for download for Extension:The conference component allows to conduct online sessions among the selected amount of users that are managed by one of them with the teacher status. The conference's got a voice and webcam support so that participants can communicate without any difficulties. In addition there's a chat pane where users can exchange messages. But what's more important the conference window allows to work with files with a special toolbar for drawing. It also allows video files playback during the conference (swf format only). Users may also access the conference archive where they can playback the recorded conferences. The teachers of conferences can also publish/unpublish and delete the conference records. Users may join conferences in the corresponding section where all the announcements are listed; a teacher may also create, edit or delete the announcements. A registered user may also send a request to join a certain conference. A teacher may either accept or deny the access. The teacher's answers are sent via email.