Auto-Calling System (ACS)

Auto-Calling System (ACS) – a type of voice call service, automatically dialing the end user and playing the provided record of the message.

ACS service is widely used :

  1. To cover the areas, where SMS reception can not be guaranteed
  2. When the end user is in roaming
  3. For users with disabilities, preventing them to read the messages

In general, ACS is a good way to improve delivery rates if used in combination with SMS.

Below you may see the flow for ACS service at SureM

voice_flow

Benefits of ACS

  • A subscriber can still receive the verification code when a text message cannot be delivered.
  • A subscriber is given a choice to make to receive a voice call instead of a text message.
  • Speech can be recorded in different languages to suit the recipients that makes it much easier and more convenient for the recipients.