Design and Implementation of USSD Gateway
Jie Wang · Mini-micro Systems · 2004
Unstructured Supplementary Service Data (USSD) is a new GSM service which provides high speed interactive communication between the applications and subscribers across the GSM network. USSD service allows subscriber to access ISP with a WAP like mechanisim but on a non WAP handset. USSD related definitions,dataflows and characters are introduced in this paper. The paper also describes the implementation of important modules of USSD gateway especially the implementation of the communication structure ,interactivity and realtime.