Its possible integrate outlook to calendar list of sharepoint, see:

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Its possible integrate outlook to calendar list in SharePoint

1. Go to the calendar, library, or list that you want to connect to Outlook.

2. Click Calendar, Library, or List. (The name of the tab varies depending on which type of list or library you are connecting to Outlook.)

3. Click Connect to Outlook.

NOTE In a tasks list, the name of the command appears as Sync to Outlook, and does additional synchronization of your tasks between SharePoint and Outlook.

4. In the dialog boxes that appear click Allow or Yes as appropriate. If your site is a part of an Office365 subscription, you may be required to use your subscription user name and password.

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