Auto Dialers allows you to make 1000s of voice calls automatically through a software. These autodialers either can play a pre-recorded message or can be used to build an advance solution compromised of flow control system.

Outbound auto dialers works with a software in the background where software picks the call list one by one and dial those numbers to play the pre-recorded message.

Auto Dialers generally used in industries where customer interaction is done on regular basis with almost same kind of information provided to the customer e.g. Sending bill due reminders, informing about new product launch.

Sometimes autodialers are  termed as Voice SMS since it can be used very effectively by individuals also e.g. sending Greetings, Marriage invitations etc.