GSM SIM card is the abbreviation of Subscriber Identity Module, which is also called smart card and user Identity card. GSM digital mobile phone can only be used with this card. It stored on a computer chip for digital mobile phone customer information, encryption of the key contents, such as for GSM network client identity identification and communication of voice messages to the client for the use of SIM card, completely prevent the weaver and talk on the phone, by hacking and SIM card production is strictly according to the GSM international standards and specifications to complete, and reliable guarantee the customer is normal communication.
Main functions:
GSM basic telecommunication service
WIB and STK applications
Low OTA function
16K,32K64K128K capacity optional
Support China telecom large capacity phone book and other extended applications
Application:Telecommunication field of smart card, SIM card, UIM card, USIM card, PIM card, IC card, etc., mobile phone SIM card to meet all kinds of STK/UTK PTK/WIB/OTAII/JAVA functions such as SIM card products are used in the GSM mobile phone user identification card, have the PHASE II SIM card complete function, built-in authentication algorithm COMP128 multiple version, GSM/DCS1800 network support, support data protection, increase rate, prevent the performance, such as cloning has many characteristics, such as safe, efficient, flexible,Suitable for SIM CARDS, prepaid CARDS, stored value CARDS, data CARDS, mobile phone test CARDS, etc.
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