What is a multi-IMSI SIM?
Before diving into how multi-IMSI technology works and what makes it ideal for IoT we will start with a brief definition. The International Mobile Subscriber Identity, abbreviated as IMSI, is the internationally standardized unique number stored on SIM cards that enables devices to connect to a network. Traditional SIM cards have a single IMSI allowing for connection to a single network. SIM cards using multi-IMSI technology hold multiple IMSIs allowing the SIM to connect countless operators.
Key benefits of multi-IMSI SIMs
Multi-IMSI SIMs offer greater flexibility and versatility than standard SIM cards. There are several reasons why an IoT project may benefit from using multi-IMSI technology, some of which are:
Global coverage with one SIM
Due to the multiple SIM profiles and connection options available, multi-IMSI SIMs offer extended global connectivity. They can automatically connect to the strongest carrier signal without any user intervention. This feature is beneficial in cases where the device may need to operate between different countries or regions.
Increased up-time & better connectivity
By switching between carriers when necessary, the device can maintain a stronger signal and minimize the risk of losing connectivity. Increased up-time is especially important for IoT applications such as remote monitoring or control, where dispatching a worker to troubleshoot these locations can be costly and time-consuming.
Compliance, no more roaming restrictions
Unlike traditional SIMs that rely on roaming, multi-IMSI SIMs can leverage direct relationships with local network operators. Using local IMSIs helps overcome roaming restrictions and ensures compliance with local privacy and tax regulations.
Secure updates over the air
New IMSIs can be added over the-the-air when required. This zero-touch approach to connectivity allows you to change operators without the need to swap the SIM.
What is the difference between multi-IMSI and eUICC technologies?
Both eUICC and multi-IMSI technologies are supported across all SIM form factors, including nano, micro, mini and eSIM. eUICC and multi-IMSI connectivity are often confused while both technologies can hold multiple operator profiles, implementation is different. eUICC stands for Embedded Universal Integrated Circuit Card. Adding new profiles to eUICC SIMs is complex, time-consuming, and costly. The fees associated with downloading profiles and establishing multiple network operator relationships can affect your project’s profitability. Another challenge with eUICC SIMs is that changing between profiles is not done automatically.
In contrast, Multi-IMSI SIM technology allows for autonomous switching and is managed through a single connectivity provider making the solution more efficient and easier to use. Over the air data usage is more lightweight, and there are no costs for downloading new profiles, making multi-IMSI technology a more cost effective solution
Why Choose Velocity IoT?
Our VIoT-Flex multi-IMSI SIM cards are eUICC compliant giving you the best of both worlds while remaining cost-effective and efficient. One SIM card with only one vendor relationship for reliable and compliant global IoT Connectivity. Designed for IoT scale, VIoT-Flex provides coverage in 190 countries with over 600 carriers available. Future-proof your IoT deployments, and get started with Velocity IoT today.
