As an alternative to a dynamic subscription you can choose to export timetable data statically in ICS (iCal) calendar format.
You have two basic options for this:
1.From the timetable perspective of the teacher. In this case, calendar entries are exported for a week.
2.via <Lessons> | <My Lessons>, by calling up reports.
This view allows you to set the time range to be used for exporting the calendar entries.
Some calendar applications allow data to be imported into a separate calendar. This is the recommended approach since you will not have any synchronisation problems if you import modified timetable data a second time.