The first thing I would suggest is to use Schedule maintenance every Sunday for your Meeting room controller PC (see image1). This will not only mark your server to maintenance status but will also suppress the alerts (so you won't get any alerts). Set the maintenance period (start time and end time) to a relative time period (say 10 min) so that after the schedule is over you will get an alert.
Hope this helps. Feel free to ask again, we would be glad to to help.
Product Manager, Site24x7