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  • Sukhjeet Singh

Is Embedded SIM (eSIM) a Solution For IoT Devices?


A subscriber identity module or subscriber identification module, popularly known as SIM card was invented in 1991 in Munich by a SIM card maker Giesecke & Devrient. It is an integrated circuit chip that is intended to securely store the international mobile subscriber identity (IMSI) number and key related to it. Both of these IMSI numbers and keys are used to identify and authenticate subscribers on mobile telephony devices such as mo