For operators, remote card writing system solves the problem of storing a large number of CARDS and card data.On the basis of remote card writing, the field card writing system solves the problem that the card writing components of each card supplier are independent and have too many versions.Operators stipulate that since the field card writing system is put into use, uniform card writing components will be enabled, and the original private components maintained by card vendors will not be added or upgraded.

Two different fast systems

Two two-speed self-service card changing schemes realize the service process of "no changing number, no registration, and quick card changing", and quickly change SIM card into USIM card, which reduces the threshold for customers to handle and use td-lte business and facilitates customers to change LTE card.When handling business, it is required to alternately use the 2/3g mobile phone (insert the users original SIM card) and LTE mobile phone (insert temporary USIM card) to complete the card replacement operation of USIM card.Two different fast systems provide a unified interface for the analysis of personalized data and the analysis of write card results, and provide a secure encryption and decryption interface for the preset data transmission of cross-province write CARDS.