Email Assistance: Issue - Unable to Add a Conference Room to my Calendar's list Online
You may want to add a conference rooms calendar in Google Mail you receive a message say that you will need to invite the room to Google Calendar.
Unable to add a conference room's calendar to Google Apps through a web browser.
During the co-existence of the Exchange and Google Mail servers conference room calendars will remain on the Exchange server. This is done so that people who have not been migrated to Google Mail will still have access to those calendars.
Once everyone has been migrated and the Google Mail you will be able to see the conference room calendars in Google Mail. Please check the following article for a work around in Google Mail.
If you have setup Google Apps Sync for Microsoft Office (GASMO) on your computer you can add the conference room's calendar to your calendar list. Please check the following article for instructions on how to add the calendar.