SIM & eSIM Products for IoT and Enterprise Connectivity
ISIMConnect provides seven core SIM and eSIM product lines covering every stage of device connectivity — from single-operator plastic SIMs to GSMA SGP.32-compliant eSIM and remote provisioning infrastructure. Each product is built for enterprises, IoT device manufacturers, and system integrators who need secure, standards-compliant connectivity at scale, whether deploying ten devices or ten million.
OTA Supported Single MNO SIM Card
A single-operator SIM (Airtel, Vodafone, or BSNL) with over-the-air configuration support, built for deployments that need one carrier relationship without multi-network complexity. Suited for regional fleets operating within a single network’s coverage footprint.
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Multi-IMSI SIM
Stores multiple pre-loaded operator profiles on one SIM, with automatic switching based on signal strength or region — available in both plastic SIM and eSIM form factors. Best for devices that need multi-country coverage without remote provisioning infrastructure.
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SGP.32 SIM
GSMA SGP.32-compliant SIM technology purpose-built for IoT remote provisioning, available as plastic SIM or eSIM. This is the current GSMA standard for IoT/M2M devices that need asynchronous, server-managed profile updates without local user interaction.
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eIM
The orchestration server that manages SGP.32 profile downloads, activations, and switches across a device fleet via API — the management layer that sits between your enterprise systems and the eUICC on each device.
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Remote SIM Provisioning (RSP)
The core infrastructure for downloading, activating, and switching operator profiles over the air, without physical SIM replacement — built on GSMA SGP.22 (consumer) and SGP.32 (IoT) standards.
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SIM Chip
A surface-mount (MFF2-style) SIM chip for embedded device manufacturing, designed for compact hardware where a removable SIM slot isn’t practical — common in trackers, industrial sensors, and wearables.
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Bootstrap Connectivity
A provisional network profile that gives a device initial connectivity the moment it powers on, before its permanent operator profile is provisioned — required infrastructure for any SGP.32 deployment, since devices need a first connection to reach the eIM.
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Frequently Asked Questions
Q: What’s the difference between Multi-IMSI SIM and SGP.32 SIM?
A: Multi-IMSI stores several operator profiles on the SIM at manufacture time, with the device switching between them automatically — fast to deploy but fixed once shipped. SGP.32 SIM uses GSMA’s remote provisioning standard, allowing operator profiles to be downloaded, switched, or updated over the air after the device is in the field, offering long-term flexibility at the cost of more setup complexity.
Q: Do I need eIM if I’m using SGP.32 SIM?
A: Yes. eIM (eSIM IoT Remote Manager) is the orchestration server required to manage SGP.32 profile downloads and switches across your device fleet — SGP.32 SIM and eIM work together as a pair, not as separate optional purchases.
Q: What is bootstrap connectivity and why do I need it?
A: Bootstrap connectivity is a provisional network profile that lets a device connect immediately on power-on, before its full operator profile is provisioned. It’s required for SGP.32 deployments because the device needs an initial connection to reach the eIM server and receive its permanent profile.
Q: Can I get SIM products as both plastic SIM and eSIM?
A: Yes. ISIMConnect’s Multi-IMSI SIM and SGP.32 SIM product lines are both available as plastic SIM cards or eSIM, depending on your device’s form factor requirements.
Q: Which ISIMConnect SIM products work with Indian network operators?
A: The OTA Supported Single MNO SIM Card supports Airtel, Vodafone, and BSNL directly, and ISIMConnect’s broader connectivity and SMS gateway products also integrate with Jio.