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GSM SIM Smart Card
It is well-known that the primary function defined for SIM card is holding the identity of the subscriber and authenticating the mobile station with respect to the network. Besides, the SIM also be used in quite a number of applications, such as allowing program execution to be protected against manipulation, making it possible to store data including phone numbers, short message and personal configuration settings for mobile telephone, and acting as the carrier for secure supplementary services used within mobile telecommunications.
As the average selling prices of earlier generations of SIM cards decline due to the effects of intense competition, we had been continuously looking to develop and market new generations of microprocessor cards with greater capabilities and attractive price to mobile communication operators all over the world.
