Setup Steps:
Navigate to the Settings menu on your iPhone.
Select Mail, Contacts, Calendars
Select Add Account
Select Other
Here you can choose either Calendar or Contacts Select Add CalDAV Account to sync your calendar Select Add CardDAV Account to sync your contacts
Enter 'dav.yourdomainname.com.au' into the server field Also enter your email login information Select Next when done
If you are setting up a calendar account, you can choose to enable Calendar and/or Reminders (Tasks)
Success! Your events/contacts are now being synced with your iPhone