How to Configure CalDAV Calendar Accounts to Your iPhone
CalDAV is an Internet standard that allows access to data in the iCalendar format on a remote server. Multiple users can access the same information so it is often used in business and organization settings.
If your employer uses a CalDAV supported calendar program, and you want to access that calendar from your iPhone, you can add a CalDAV account. You'll need some account information from your IT department or network support person:
Server: This has your company or organization information.
User Name: This is your identification.
Password: A password is required.
Description: This name shows up on the list of accounts on the Mail, Contacts, Calendars settings screen.
Armed with this information, set up an account on your computer. Next, set up the account on your iPhone by following these steps:
Tap Settings→Mail, Contacts, Calendars.
Tap Add Account.
Tap Add CalDAV Account in the Calendars section.
Type in the information requested.
Tap the Next button in the upper right corner.
After your account information is verified, the calendar data is added to your iPhone.
Tap the Save button in the upper right corner and you return to the Mail, Contacts, Calendars settings screen.
Tap Fetch New Data.
If your server supports push notifications — and you want to use it, Tap Push On.
Anytime you make a change to the calendar on your computer that's associated with your iCloud or Microsoft Exchange account, that change is pushed to your iPhone, and vice versa.
If your server doesn’t support push (or you want to conserve battery power — Push is power hungry), select a default fetch interval — every 15 minutes, every 30 minutes, or hourly.
Your iPhone contacts the server for new data at the interval you select.