Operational efficiency is the name of the game. You waste time, money, and resources when customers forget about or purposely ignore upcoming service appointments or fail to make timely payments. Sending reminders via email or text are a good starting point but are often easily ignored. An effective outbound reminder system should be able to recognize the difference between a human voice and an answering machine and be able to engage appropriately. Finally, the system should be adaptive in terms of time of day and frequency of the calls made.