As a part of my project i have to develope a USSD(Unstructured Supplementary Services Data)
based application but i am totally blank about how to start..!Let me specify my questions
1.In which language USSD App can be built?
2.What will be exact palce of USSD App in GSM Architecture?
3.How to start ?
4.Any books,web sites,forums for reference?

hi,
to develop ussd based application you need to be a content provider and registered with a ussd gateway (of any mobile network operator). pressing *XXX# will send an request to ussd gateway and then gateway request content provider (specified within that selection by id) to send some service to subscriber mobile.
I guess it your project will face complexity in arranging ussd content provider facility than to build an ussd based service/application. Anyway best of luck.

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