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Connectivity
Features
SIM Toolkit
SIM Application Toolkit
(commonly referred to as STK) is a
standard of the
GSM system which enables the SIM to initiate
actions which can be used for various value added services.
The SIM Application Toolkit consists of a set of commands
programmed into the SIM which define how the SIM should
interact directly with the outside world and initiates commands
independently of the handset and the network. This enables the
SIM to build up an interactive exchange between a network
application and the end user and access, or control access to,
the network.
