Video conference directions

The virtual QuarkNet group generally schedules our monthly virtual QuarkNet video conference on a Sunday mid-month at 8PM eastern.  They particular Sunday depends on anticipated schedule conflicts of the members.  We use a browser to go to the Indico web page at CERN:
 
 http://indico.cern.ch/event/virtual_qn_rm
 
or

https://indico.cern.ch/conferenceDisplay.py?confId=18079

This web page allows us each to log on as a "guest."  It may do so immediately or prompt the download of an application.  If you already have the needed application, it seems to work better to have than already running before attempting to log on.  Otherwise it may log on directly using a browser web page.