OTA SIM
The device uses a Bootstrap IMSI by default. It then dynamically switches to an optimal IMSI at the destination, considering cost and network performance. The new IMSI profile is delivered over a binary SMS or data connection.
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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