eSIM
Understand eSIM technology, compare GSMA specifications, and explore remote provisioning and connectivity management.

SGP.32 allows you to switch an operator profile remotely. It does not automatically preserve your APIs, alerts, reports, billing, permissions, or support workflows.
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SGP.02 vs SGP.22 vs SGP.32: a practical guide to GSMA eSIM specifications to help you choose the right one and avoid hidden operator lock-in.
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A technical walkthrough of the GSMA SGP.32 IoT eSIM standard — eIM, IPA, SM-DP+, interfaces, profile lifecycle, and where the spec and the market stand today.
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"SGP.32 compliant" doesn't mean you can switch later. All the questions you should ask a connectivity provider before signing an IoT eSIM deal.
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Getting an eSIM activation code is easy. Managing it across a fleet isn't. Here's how 1oT Terminal makes the whole process visible and scalable.
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Every new reseller should bring growth, not more admin work. Discover how Sub-accounts help you scale your partner network without the operational drag.
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We're open-sourcing YggdraSIM today. It's the SIM and eSIM testing toolkit we've been quietly running on inside 1oT for the past several months.
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