Choose which calendar you want to view by clicking on the drop-down menu top right of the calendar (beside Agenda)
You can add each of the calendars to your phone or email client by adding the relevant calendar file to it. Any updates in the calendar will automatically then be visible on your phone.
How to add the calendar to an iPhone
The server address is verified and a Subscription screen appears. The calendar appears on the calendar list in the Calendar app. You can also look at this video – https://www.youtube.com/watch?v=vtpxEy3TPqY How to add the calendar to an Android This is easier when done on a Computer
For more instructions including pictures click here