In the same way that each physical SIM card has a unique identity, each eUICC has a unique identity called eUICC Identifier (EID). The secure container is called an eUICC (embedded Universal Integrated Circuit Card). Windows has supported eSIM for PCs since 2017.ĮSIM decouples the secure execution environment of the plastic SIM card from the SIM credentials it contains. The adoption of eSIM technology has been growing due to its incorporation in popular smart phones.

About eSIM technologyĮSIM technology has created a worldwide ecosystem of cellular devices and mobile operators based upon a common specification from the GSM Association (GSMA). Windows 11 provides more capabilities for the deployment and management of eSIM content using Mobile Device Management (MDM) such as Microsoft Intune. Therefore, Windows 10 and Windows 11 support eSIM (embedded Subscriber Identity Module) technology as a digital alternative to discrete SIM cards. Management of SIM cards for a fleet of devices can be costly and time-consuming. The identity of a cellular-enabled device, such as a Windows Connected PC, has traditionally been encapsulated in a device called SIM (Subscriber Identity Module), and packaged as a discrete SIM card.

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