public override void LoadPlugins()
{
no_plugins_in_config = plugins.Count == 0;
LoadActualPlugins("Contact",typeof (IContactPlugin), plugins);
if (active_plugin != null){
Call.calls.CollectionChanged += calls_CollectionChanged;
Conference.users.CollectionChanged += confusers_CollectionChanged;
Call.CallRightClickMenuShowing += calls_RightClickMenuShowing;
Broker.get_instance().XFERMenuOpenedHandler += broker_xferMenuOpened;
}
}