Big Blue Button (Collaborate) plugin should be activated in Fedena to integrate video conference in Fedena. For this user has to install Big Blue Button first (http://code.google.com/p/bigbluebutton/). Once this is done, you have to run the command, bbb- conf --salt (refer - http://code.google.com/p/bigbluebutton/wiki/InstallationUbuntu#URL_and_salt_for_3rd_party_integrations)
This will give a Salt ID. Now go to Fedena application. Go to Collaborate module (Under the More link). You have to login as Admin to do this operation. Refer the image below
On clicking the collaborate link, admin will get the settings page of BBB integration with Fedena. There will be a link Server at the top right corner, click on that
Click on servers and click on new server link. Give the salt id and the link where Big Blue Button is installed. Give a name for the new server integration. Refer the figure below
Saved BBB servers will be listed down in the Collaboration page.