Design And Implementation Of Pre-Paid Roaming Services Based Platform C2G

In the field of international roaming services, it has achieved prepaid international roaming services of homogeneous network and pay international roaming services between heterogeneous networks, but CDMA network and GSM networks are quite different,it’s too difficult to achieve pre-paid international roaming services between them.This paper implements prepaid international roaming service. The service enables prepaid CDMA network users access GSM network and use prepaid international roaming services.The service can both handle session messages of GSM and CDMA networks and achieve the Interconnection of the two networks.In this paper,it analyzes the technical difficulties of heterogeneous network prepaid international roaming services still exist in the implementation process. By C2G prepaid international roaming services needs analysis, we get a clear service need to implement the functional requirements and non-functional requirements. The core of this paper is the design and implementation of prepaid international roaming services.Then we used unit testing, integration testing and system testing to verify that wheather the service achieve functional and non-functional requirements. Finally, we prospect C2G prepaid international roaming services for future expansion and heterogeneous network prepaid roaming services in the field of3G and4G future developments.