IoT eSIM & SGP.32
Choosing an operator before a device ships is a bet you live with for the device's whole life. With an eUICC and the GSMA SGP.32 standard you no longer have to make it: ship one design, then download and switch operator profiles over the air, in bulk, on devices with no screen and no user.
From the factory floor to any operator
The device leaves the factory with an eUICC and a bootstrap profile. When it lands in a market, one request tells the remote manager which operator profile to download and enable. The same request can switch it again years later.
Four problems an eSIM removes
One SKU at the factory
Connectivity is loaded at manufacture, so devices power on already online. One build for the world instead of one per region.
Operator changes without a recall
Change the operator profile on devices already in the field, one device or the whole fleet, on request through VoicePro. No SIM swaps, no technicians.
Markets that restrict permanent roaming
Where a country restricts permanent roaming, load a local operator profile remotely and keep the same hardware.
No lock-in at the remote manager
The SIMs work with any compliant remote manager, and profiles from any operator can be loaded. Control of the fleet stays with you.
SGP.32 against the two older GSMA standards
| SGP.02 (M2M) | SGP.22 (consumer) | SGP.32 (IoT) | |
|---|---|---|---|
| How a change starts | Pushed by the operator, relying on SMS | Pulled by a person scanning a code | Orchestrated by your remote manager, over the air |
| Who controls it | The operator | The device owner, by hand | You, through VoicePro |
| Screen or user needed | No | Yes | No |
| Best for | Existing M2M fleets | Phones and tablets | New, headless, low-power fleets across many markets |
eSIM, eUICC and SGP.32 are three different things
One describes the shape, one the capability, one the standard. A single SIM can be all three.
| Embedded SIM (MFF2) | eUICC | SGP.32 | |
|---|---|---|---|
| What it is | A form factor: a chip soldered to the board | The ability to hold several operator profiles and switch between them | The GSMA standard for remote provisioning on IoT devices |
| Profiles change | Only if the chip is an eUICC | Remotely, by whichever standard it supports | Over the air, in bulk, orchestrated by the remote manager |
Three ways to get the right profile on a device
Preloaded at the factory
The profile is written at manufacture. The device connects on first power-up with no activation step and no handling in the field.
Bootstrap, then the right one
Devices ship with a bootstrap profile, connect, and pull the operator profile for the market they land in.
Over the air at any time
Enable, disable, download and delete profiles on deployed devices, for one device or the whole fleet, on request through VoicePro.
Common questions
I just need an embedded chip. Is that this?
Often, yes. "eSIM" frequently just means the solderable MFF2 chip, which we supply with or without multi-profile capability. Tell us what you are building and we will say which you need.
Is SGP.32 ready for production?
Yes. The GSMA has published the specification, and the full chain is available today: SGP.32 eUICC SIMs, the remote manager that switches profiles, and operator profiles.
Does the device need new firmware?
A small profile assistant runs either in the modem firmware or on the eUICC itself. The second avoids firmware changes but needs a compatible modem. Tell us your module and we will check.
Will an eSIM lock me into one provider?
Not here. Our SIMs work with any compliant remote manager, and our remote manager works with profiles from any operator.
More of VoicePro IoT
IoT SIMs
Card, embedded chip or software SIM, commercial or industrial grade, with the full technical specification.
Fleet management
Your SIMs, their status and network logs in the VoicePro portal, with data limits, alerts, an API and webhooks.
Network diagnostics
Attach logs, signalling logs and live packet capture. Find out why a device went quiet without visiting it.
Security & private networking
IMEI lock, device isolation, IPsec and OpenVPN. Keep devices off the public internet.
Coverage explorer
Every network in 203 countries, with 2G, 3G, LTE, LTE-M and NB-IoT status by operator.
Industries
Asset tracking, logistics, telematics, metering, EV charging, payments and more, each in depth.
Design for every market once
Tell us your radio module, volumes and target markets, and we will confirm the eSIM route that fits and supply evaluation SIMs.