How Multi IMSI simplifies global IoT

Multi-IMSI enables manufacturers to equip every device with the same single SIM card while still deploying devices globally through automatic selection of local networks. This not only reduces communication costs but also simplifies logistics.

Many manufacturers produce equipment that’s deployed worldwide. This means that these devices must also be able to communicate with each other and with their administrators globally. Not only smartphones, but also sensors, cameras, cars, and heavy machinery are connected these days. While this is very convenient, it increasingly leads to recurring operational issues. Such as managing dozens of network contracts, having to select different SIM cards during assembly, shipping, or deployment, and resolving connectivity issues when devices cross national borders, whether temporarily or permanently.

A single SIM with multiple International Mobile Subscriber Identities.

Multi-IMSI technology offers a solution to this by equipping a single SIM with multiple International Mobile Subscriber Identities (IMSI). Each IMSI corresponds to a locally recognized operator. This allows the device to present itself as a local subscriber and eliminates the need to rely on roaming. Physical SIM swaps, which are often impractical and/or financially unfeasible, are therefore no longer necessary. All without the need for separate inventory per country or region and the associated cumbersome provisioning.

The benefits of multi-IMSI.

Benefit one: simplifies production and storage.

From a logistical standpoint, practical benefits are immediately apparent. Using a single universal SIM for all devices simplifies production and storage. The same part number can be installed in every unit, eliminating the need to split inventory by region and the risk of sending the wrong SIM to the wrong market. During transport and after delivery, devices automatically select the best available IMSI based on country and signal conditions. This ensures that telemetry, tracking, and remote management continue without human intervention. Which provides continuity in the supply chain and ensures compliance with service agreements regarding asset tracking and condition monitoring.

Benefit two: reduces roaming costs and unpredictable operator charges.

A second key benefit is cost control. Multi-IMSI enables devices to appear as local subscribers. This reduces roaming costs and unpredictable operator charges compared to models that rely on a single IMSI and roaming. With large volumes, these savings add up to significant reductions in connectivity expenses and simplify billing through predictable costs. For manufacturers who sell or lease devices internationally, this improves predictability, margins, and pricing strategy.

Benefit three: prevents coverage gaps.

Operational resilience will also increase, because Automatic IMSI switching prevents coverage gaps. When a primary operator has a weak signal or goes offline, the device can simply switch to another stored IMSI and remain connected. In many processes, this resilience directly translates to higher availability, lower recovery costs, and better customer experience. After all, untracked assets or regulatory non-compliance due to loss of connectivity can lead to lost revenue.

A few things to consider.

MVNOs also face new considerations. Multi-IMSI SIMs typically require more careful provisioning during production. Profiles are often preloaded onto the SIMs at the factory, which affects lead times in the supply chain and requires coordination with connectivity providers. Security, regulatory compliance, and agreements with local operators must also be carefully managed to ensure the legal and sustainable use of local IMSIs.

Finally, implementations are increasingly opting for eSIM or remote profile management to ensure flexibility after deployment. It’s possible but requires a well-thought-out approach and has various operational and cost implications. This creates separate logistics flows for the physical SIMs and the required profiles. And more logistics flows simply require more time and attention, especially when those flows are international or intercontinental in nature. However, the benefits in terms of costs, and particularly in terms of long-term sustainability, are increasingly outweighing these drawbacks.

Conclusion: multi-IMSI simplifies global IOT.

In short, multi-IMSI offers MVNOs and their customers a practical way to standardize on a single SIM while enabling global connectivity with local rates, simplifying logistics, reducing roaming costs, and increasing uptime.

This makes it a viable option for large-scale, globally distributed connectivity.