SIM Application Toolkit

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SIM Toolkit (STK) is a standard of the GSM framework that empowers the endorser character module (SIM card) to start activities that can be utilized for different worth included services. Similar gauges exist for other system and card frameworks, with the USIM Application Toolkit (USAT) for USIMs utilized by more up to date age systems being a model. An increasingly broad name for this class of Java Card-put together applications running with respect to UICC cards is the Card Application Toolkit (CAT).

The SIM Application Toolkit comprises of a lot of directions modified into the SIM which characterize how the SIM ought to interface legitimately with the outside world and starts directions autonomously of the handset and the network.[4] This empowers the SIM to develop an intuitive trade between a system application and the end client and access, or control access to, the network. The SIM likewise offers directions to the handset, for example, showing menus and additionally requesting client input.

STK has been sent by numerous portable administrators around the globe for some applications, frequently where a menu-based methodology is required, for example, Versatile Banking and substance browsing. Structured as a solitary application condition, the STK can be begun during the underlying catalyst of the SIM card and is particularly fit to low-level applications with simple client interfaces.

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