Please bear in mind that simply clicking/tapping the iCal links will provide only a current snapshot of the calendar and do not subscribe you to the calendar nor provide dynamic updates as the schedule changes. Please follow this procedure to subscribe to the calendars with your iDevice and receive dynamic updates:
iOS 9 and below:
- Long press the iCal link and COPY the link.
- Navigate to: Settings > Mail,Contacts, Calendars
- Tap "Add Account"
- Choose "Other"
- Choose "Add Subscribed Calendar" under the Calendars division
- Paste the link in the "Server" field
- Change only the "Description" field if you feel it necessary, otherwise click "Save"
iOS 10:
- Long press the iCal link and COPY the link.
- Navigate to: Settings > Calendars
- Tap "Accounts"
- Tap "Add Account"
- Choose "Other"
- Choose "Add Subscribed Calendar" under the Calendars division
- Paste the link in the "Server" field
- Change only the "Description" field if you feel it necessary, otherwise click "Save"