Focus: eSIM


SGP.32 promises to reshape the IoT landscape


By Toby Gasston, Principal Product Manager, Wireless Logic


portfolio of network profi les and avoid expensive integrations that made the (original) SGP.02 standard so unwieldy.


Switching providers under SGP.32 Technically, switching network profi le on an SGP.32 eSIM involves the eSIM Orchestrator (eSO), the eSIM IoT remote manager (eIM), the Subscription Manager Data Preparation Plus (SMDP+) and the IoT Profi le Assistant (IPA). To switch over, as the platform that automates and manages


T


he IoT is undeniably complex, comprising a landscape of networks, devices and cloud environments. Enterprises can struggle to establish and maintain device connectivity when


they lack in-house IoT skills or the capacity to devote suffi cient operational attention. SGP.32 is the GSMA’s latest eSIM standard for remote SIM


provisioning (RSP). It aff ords enterprises more control over their IoT fl eets and helps them proactively manage costs. At the macro level, it ushers in a new era of IoT connectivity, one in which enterprises and providers work together more closely to design and manage resilient and adaptable IoT solutions. T e standard was designed specifi cally for the IoT, and to


address the limitations of earlier standards for connected devices to receive the benefi ts of eSIM. Standout among those benefi ts is RSP because it enables remote


over-the-air network profi le switching. T is gives organisations more fl exibility and control over their IoT solutions, as they can adopt a single global eSIM for all their products. Wherever those units are going in the world, their connectivity can be handled when they get there. When an eSIM wakes up in its destination, it identifi es


its location and connects to the network prescribed by pre- programmed business rules. T at could be a local network, that will incur only local charges and overcome any permanent roaming restrictions that a SIM connecting to a network abroad would be subject to. Technically, SGP.32 reuses mobile network operator


infrastructure and provisioning workfl ows from the earlier consumer standard, SGP.22. T is means it can access an extensive


08 October 2026 www.electronicsworld.co.uk


eSIM operations across carriers, devices and profi les, the eSO informs the eIM of a new profi le to be downloaded, with the information holding the download code that contains the address of the SMDP+, the profi le and the download method. T e eIM then informs the IPA, which either downloads the new profi le from the SMDP+ via the eIM, or pulls the profi le directly from the SMDP+, which it can only do if the device is capable of HTTPS communication. Yet, despite this simplifi cation, there is more to getting started


with SGP.32 than just installing an eSIM. Most enterprises couldn’t self-manage integration with device manufacturing, secure remote provisioning, carrier agreements across multiple markets or ongoing lifecycle management. Instead, solutions providers must step up to support enterprises with a complete off ering, backed up by a single unifi ed management platform. T ey should provide robust value-add services, including IoT security, and be able to advise on resilience measures and cost minimisation.


Benefits afforded by SGP.32 T e IoT’s future is oſt en spoken about in terms of speed and bandwidth, but enterprises worry about return on investment, complexity, compliance, reliability and continuity, as well. T e remote switching saves the cost of sending technicians to


devices to change SIM cards manually, which can exceed $1000. T at saving isn’t limited to only international deployments either. Enterprises with single-country IoT fl eets have the same level of control over their connectivity and can switch networks just to secure better rates or address performance and resilience. SGP.32 helps by enabling adaptable, global and scalable IoT connectivity with simpler upfront decision making, processes and in-life change. A single global eSIM that is carrier agnostic at the time of manufacturing, makes for signifi cantly simpler and more cost-eff ective processes. T us, SGP.32 will make the IoT truly borderless and fl exible.


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