How to use jitsi for video calls

Hi,

I've installed OpenFire 3.9.3, its connected an Active Directory domain and i can use the IM function correctly.

I'd like to be able to make video calls/conferences so i've installed Jitsi VideoBridge Plugin 1.3.1

In the OpenFire server i now have the sub tab for Jitsi Videobridge.

I've got the plugin installed in the Skype Client plugin directory (Windows 7 laptop)

What i'm missing are the instructions on how to start a video call.

Is there any further config i need to do before i can start using it for video calls ?

Kind Regards

Jonathan