Connecting SharePoint calendar/contacts with Outlook.
1. Log into your SharePoint site.
2. Click on Calendar or Contacts icon on the left site.
3. Click on Actions menu item and select Connect To Outlook.
4. You may be prompted with a SharePoint services window for an Add-on to Outlook, select yes.
Now in Outlook you will see your shared contacts/calendar items under the associated tab. You can now update your SharePoint site within Outlook.