The value-added services (VAS) provided by telecom operators have been exploding in recent years. The attractiveness of VAS is one of the key factors for the operator to run a successful business. For the case of VAS access, the interactive voice response (IVR) is a very useful means. This article will elaborate the design architecture, functions, and performance.
IVR (Interactive Voice Response) AGS (Advertising and Greeting Service) MCPS (Mobile Combo Payment Service)