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UICC is a 3G (U)SIM card that is also backwards compatible with the 2G technology. This means that during this period of 2G to 3G exchange, operators can issue UICC cards directly so to avoid unexpected interruption of services. Subscribers may also use UICC cards as an intermediary medium to upgrade from a 2G handset to a 3G hand-held device.
Features:
1. Provide various build-in plug-ins toreduce VAS Development, Certification, andTesting Cycles dramatically
2. Offer different memory storage capacity for users to choose
3. Fully utilizes OTA Remote File Management capabilities, allowing operators to manage service contents and files efficiently and
  effortlessly over the network
4. Enhanced Security by providing multiple encryption algorithms, including hash function, and other customized algorithms
5. Flexible UTK Development Environment and Responsive Technical Support
6. Special hardware and software design renders UICC a complete (U)SIM card product capable of operating in any 3G handset
  model or (U)SIM card
7. Two Formats Available: Legacy Format and Format