iCal is a personal calendar application made by Apple Inc. that runs on the Mac OS X operating system. iCal was the first calendar application that offered support for multiple calendars and the ability to publish/subscribe calendars to WebDAV server.
To add a new CalDAV account (when using IceWarp Server), do the following:
Step 1. In the main menu, select the iCal – Preferences – Accounts items.
Step 2. In the Accounts dialogue, click the “+” (plus) button.
Step 3. In the Account type field, select CalDAV.
Step 4. Username should be the complete Email Address.
Step 5. Fill in your Password.
Step 6. Into the Server address field enter, sysmic.icewarpcloud.in
Step 7. Click the Create Button.
For Android, accounts need to be configured through Active Sync which comes with Premium Plan. Kindly contact your Account Manager if you need to upgrade your plan.