Download ConnectComply for your iOS or Android smartphone.
With Call2Test, you can easily set up check-in windows to match your already existing system.
†NOTE: Times are in 24hr time (e.g. 13:00 = 1:00pm)
The window of time can be as long or as short as you find necessary and can be spread-out to as many or as few windows as you need. Clients cannot check in before their window begins, and you will be notified if they check in after their window is over.