OTA SIM
Bootstrap IMSI作為默認IMSI，到目的地根據資費及網絡質量切換優質IMSI，以二進製短信或數據通道下發IMSI。
Single IMSI SIM
Traditional USIM, including single IMSI, applied in local network or roaming advantage regions.
eSIM/Virtual SIM
Trend in IoT Era, integrated with chip & telcom
module, to realize flexbile IMSI switching, low
cost and data security.
Multi-IMSI SIM
USIM with multiple IMSIs, to realize low costs in several regions, applicable in frequent crossborder scenarios.
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