Did another user share an Outlook calendar with you that you want to view and edit from your mobile phone or tablet? Perhaps it is not showing up even after setting up your Exchange account on your device? Give Team Calendar Sync a try! Team Calendar Sync is the solution for syncing those shared calendars when Android and iOS do not.
If your company has an Outlook Web App that your mobile device can reach that's a good sign the app will work for you. Two way syncing is supported provided you have editor permissions. Exchange 2007, 2010, 2013, and 365 are supported. Android 2.3+ and iOS 7.1+ are supported. A complete user guide with screenshots is posted on the project site. Additional information is posted on the wiki.
If you get an error message while running the app, use the "Email Report" button to send a log file. You can view and create issue tickets on the GitHub project site. You can also email firstname.lastname@example.org with a description of your issue. If the app doesn't work for you there is always an option for a refund.