You can set up meeting reminders in Appointment Type. Once the reminder is set, the participants are notified by email and (SMS) text message. Here is how to set meeting reminders though your FreeBusy account:

Step 1: Go to "Appointment Booking"

Step 2: Click on "Edit Appointment Types" on Booking Page of your choice.

Step 3: Click on "Edit Appointment Type" on Appointment type for which you wish to set reminders.

Step 4: Scroll to Reminders (section 6)

By default, there are no meeting reminders set. FreeBusy offers you certain choices for how long before the meeting you wish to remind yourself and your guest. You can choose to set one or more reminders.

Step 5: Save Changes in Appointment Type

After this when meetings are scheduled using this Appointment type participants, will receive the reminders on their email. They will also have an option to receive SMS reminders when they book the appointment.

Happy scheduling!