ScheduleOnce is a time slot booking system that enables people to book time on your calendar via the web without having access to any information from your calendar, not even to your free/busy view.
How is this achieved? ScheduleOnce displays a calendar that shows availabale days in which you can meet. When people click on a day, they can see time slots in which you are availabale. The time slots are not your free/busy view. There are multiple settings that you can use to control these settings. For example, you may not want to show more than three time slots per day even if you have availability to show ten. You can also control time slots with additional settings such as when they start on the hour for example.
Appointment scheduling which is based on time slots is the most robust method for business appointment scheduling. to learn more about our time slot booking system, simply follow the link.