I'd like to add room calendar to show up in Sharepoint site. I tried calendar overlay functionality, but it only shows my personal calendar. So this is not the answer: https://support.office.com/en-us/article/Overlay-a-SharePoint-calendar-with-a-calendar-from-Exchange-or-SharePoint-4caebe59-3994-4a94-9322-b31abb8a5e9a#__toc341798090
I do not want to create a calendar in Sharepoint and then connect it to Outlook, I need to use existing room calendar in exchange.
Environment is: Sharepoint 2013, Exchange 2010.