Why OEMs Are Rethinking IoT Connectivity: One Partner, One Platform, Global Scale

DIN 476 Standard is one of those things that underpins modern civilisation, but doesn’t get a lot of love. 

As recently as the 1920s, keeping any kind of printed record was a logistical headache. Paper sizes were basically made up as they went along. Every printer, binder, town, regional factory, and government office all used slightly different dimensions for their documents. 

For anyone dealing with hardcopies, which back then was literally every business bigger than a hotdog stand, this lack of standardization was not just an annoyance but a genuine operational hurdle. It meant that every time an enterprise expanded into a new region, or even changed supplier, then every receipt, invoice, folder, binder, and filing cabinets had to be either refitted or entirely replaced to accommodate the local paper size.  

It was not until 1922, that the deeply underappreciated Dr. Walter Porstmann introduced the DIN 476 standard and saved the world by giving us the universal A4 sheet of paper so that businesses around the world could finally standardize office equipment. 

Whether you’re dealing with what paper fits into what drawer in the ‘20s or what radio frequency talks to what smart device today, the challenges of operational friction while scaling retain the same essential problems.  

History repeats itself, and this is precisely what OEMs face today when tackling IoT connectivity. 

With global IoT connections reaching 21 billion in 2025 and forecasted to surge to 48 billion by 2035, the scale of the challenge accelerates by the day. Instead of paper filing cabinets, today's OEMs juggle local mobile network operators, varying roaming agreements, incompatible management portals, and fractured billing systems. And, probably, paper hardcopy archiving issues too.   

Managing multiple local operators creates an administrative mess that prevents or at least dissuades scaling. The modern digital equivalent of the A4 standard, with a unified approach that cuts through the complexity, was urgently needed. That’s where true unified connectivity comes in.  

Global Products Need Global Connectivity

Today's connected devices are rarely built for a single, isolated market. Whether designing healthcare equipment, remote industrial sensors, or smart EV chargers for a continent-wide network, manufacturers increasingly need products that can deploy across multiple regions and mobile networks without needing to be reformatted every time. The cellular IoT connectivity market reflects this broadening footprint, having reached 4.7 billion connections in 2025, and projected to sail past  nine billion as early as 2030. 

The primary challenge is not the hardware itself, but getting it to deliver a consistent, highly reliable connectivity experience. An agricultural machine proudly built in Germany must wake up, connect to a local network, and transmit data immediately, whether it lands in a rural French vineyard or a gigafarm plantation in Brazil.  

If the connectivity fails, the product is entirely useless and a failure as far as the customer is concerned. 

Consequently, any successful connected device deployment strategy must treat connectivity as a core component of the product itself, not an afterthought or someone else’s downstream problem. Industry analyses demonstrate that a full three-quarters of all IoT projects fail to meet expectations at launch, frequently throttled by simply underestimating the complexity of connectivity, scalability, and integration.  

Put very simply, you can’t build a world-class globally targeted product and then hope it’ll perform to the best of its abilities on a highly localized, geographically restricted network. Or, you can – but don’t be surprised when none of the paper fits in the folders.   

Managing Multiple Operators Doesn't Scale

Historically, in the rush to get products connected, OEMs have relied on a fragmented patchwork of local operators and vague roaming agreements. This will actually work fine when still shipping a few thousand units within a single region. Contracts are signed with local telcos providers, standard plastic SIM cards are inserted, and operations tick along. To be fair, this approach was good enough for much of the early 21^st century, and the plastic SIM card has been the workhorse that built the digital world we enjoy today.  

However, the current standard of international hyperscale expansion rapidly overwhelms this model. Devices leaving their home market quickly hit ‘permanent roaming’ restrictions. Under international carrier policies, a device remaining on a foreign network for sometimes as little as 30 days can be classified as permanently roaming and get summarily blocked. 

Countries such as Brazil, Turkey, and China enforce strict bans on long term roaming, meaning whole devices fleets on traditional SIMs face abruptly going dark with little or no warning. Given that Transforma Insights estimates over 70% of cellular IoT connections will stay active in whichever market they first wake up in, traditional roaming frameworks are fundamentally incompatible with long-term enterprise deployments. 

This localized, piecemeal approach rapidly creates unsupportable operational complexity. Procurement teams are then dealing with multiple vendors. Finance departments are struggling to reconcile invoices in different currencies with completely different billing metrics. Legal teams are bogged down in endless contract negotiations. 

Tech support and Ops teams are forced to jump between half a dozen disjointed operator portals to figure out why a batch of devices has gone offline.  

A Kaleido Intelligence survey in 2024 quoted 95% of industry respondents considered traditional roaming SIMs to be inadequate for global IoT connectivity, citing performance bottlenecks and an inability to navigate evolving data privacy regulations. As deployments grow to millions of units, managing connectivity and compliance often becomes far harder and more expensive than managing the hardware; a scaling issue that is driving the move away from the older multi-operator model. 

The Hidden Cost of Connectivity Fragmentation

Relying on a fragmented web of regional telco partners creates massive and, worse, unpredictable hidden costs that eat into the bottom line and stifle operational agility. 

Multiple providers means multiple contracts, which means multiple terms and renewal dates. It means dealing with varying SLAs, making it incredibly difficult to offer end-users any kind of reliable baseline service expectation.  

Plus, without centralized purchasing power, enterprises are constantly trying to stay ahead of regional price hikes, opaque data overage penalties, and an inability to easily pool data resources to optimize costs across a global fleet. 

Meanwhile, this fragmented approach is still heavily reliant on traditional physical SIM cards, introducing the unwanted prospect of vendor lock-in. This boils down to the fact that changing a provider requires an expensive physical intervention, dispatching an engineer to physically pop open the casing of every deployed device to manually swap out the plastic SIM card.  

For OEMs with even a relatively modest fleet in the tens of thousands, the cost of a physical SIM swap campaign is prohibitively high, hamstringing the ability to negotiate or pivot when price/performance ratios dip. True IoT connectivity can’t be held hostage by fragmented, localized constraints and old agreements that are simply too expensive and entrenched to exit. 

Why eSIM and Remote Provisioning Change Everything 

To help formulate a strategy for digital telco scaling, and without getting bogged down in technical digital architecture details, it’s helpful to consider how businesses have solved similar problems in other sectors.   

Again, look at a slightly simpler time (technologically speaking) and consider the manufacturing floors of the 1930s. At the time, automotive assembly lines that should have been booming were frequently grinding to a halt because of something as simple as the shape of the bolts.  

Screws and bolts, as everyone knew, came with a single lite slot on the top to twist them in. Unfortunately, the powerful new electrical drivers of the 30s simply had too much torque, and would constantly slip from the slot, strip the head and require the whole bolt to be bored out or the car component removed entirely.  

Then in 1936 came the self-centring Phillips head bolt, with a radically inventive two little slots in a cross, with slightly tapered slides. This tiny fix allowed workers with power tools to drive bolts quickly and uniformly, suddenly scaling production to unprecedented heights. 

For OEMs today, traditional, localized plastic SIM cards are the legacy slotted screws of the IoT world: they create operational friction and require expensive physical intervention, making them fundamentally incompatible with modern scale. 

For the sake of this analogy, IoT eSIM tech enters the picture as the modern equivalent of the Phillips head: specifically designed to work under an order of magnitude more load, modular right from the point of manufacture, and built to require massively less intervention and correction before final deployment.   

Advanced eSIM architecture allows manufacturers to orchestrate and manage network administration remotely throughout the device's lifecycle. Consequently, global eSIM connections are now projected by Juniper Research to reach 1.5 billion by the end of this year, an enthusiastic 30% spike from the previous year. 

The operational catalyst is Remote SIM Provisioning (RSP). Powered by the GSMA's IoT-optimized SGP.32 spec, RSP securely downloads, activates, and updates network profiles entirely autonomously and over the air. 

In terms of the manufacturing process, the ultimate objective is the single device Stock Keeping Unit (SKU). Assembly lines no longer need to diverge to insert region-specific SIM cards. One unified product is built with embedded connectivity, and that identical product ships globally, and the correct local network profile downloads automatically when the device powers on.  

Utilizing eSIM fundamentally shifts connectivity from a rigid hardware problem to a highly agile software solution. 

Centralized Connectivity Means Operational Control

Transitioning away from a messy pile of regional providers and embracing a unified eSIM architecture solves the physical SIM swapping problem while simultaneously unlocking a whole new level of operational control. 

Modern sophisticated connectivity platform grants OEMs absolute visibility and intuitive command over an entire deployed fleet. Instead of a patchwork across five different telco portals, Ops teams utilize an efficient ‘single pane of glass’ interface.  

This centralization streamlines everything, and from initial activation to deep-level diagnostics and real-time usage monitoring, every action is executed from and reported to one place. Support teams can instantly view network signalling, reboot connections, or push new localized profiles over the air to port devices over to better-performing networks. 

This robust IoT device management is essential when dealing with enterprise scale and global teams. It permits the setup of automated alerts for unusual data consumption, preventing massive bill shocks, and allows effortless integration of connectivity data into existing ERP or CRM systems via unified APIs. Ultimately, this centralized control significantly reduces ongoing technical support overheads while improving product reliability. 

How 1GLOBAL Helps OEMs Scale Globally

One thing both the savvy telco professional and the OEM executive both know is that building the hardware is only half the battle. What comes next is every bit as important, as navigating the inhumanly complex web of the global digital network can quickly drain resources and distract organizations from their core business. 

That exact operational pain point is among 1GLOBAL’s specialties. Serving as a dedicated partner that simplifies the technologically and legally complex world of international networks, 1GLOBAL provides true, effortless multi-network IoT connectivity that scales instantly alongside enterprise ambitions. 

Through factory-ready eSIMs and advanced RSP architecture, the physical and logistical friction of deployments is eliminated. Multi-network access ensures devices always find the best performing signal, bypassing single-operator dead zones and resolving the regulatory hurdles of permanent roaming restrictions. 

With 1GLOBAL, centralized management is achieved through an agile yet intuitive platform, providing Ops teams with absolute control and oversight. Transparent, predictable pricing models eliminate the fear of hidden roaming fees, and true carrier independence ensures OEMs are never locked into a single network's fortunes. 

1GLOBAL empowers OEMs to deploy products confidently to any market across the globe. The headache of managing a dozen different telco vendors is replaced with one partner, one powerful platform, and one single commercial relationship. 

Next Steps

Scaling a connected hardware estate shouldn’t be an uphill battle against your own infrastructure. When OEMs rely on outdated models of localized, physical SIM cards and patchwork regional operator contracts, they artificially limit their own growth and operate only as fast as their weakest elements will allow. 

Just as Dr. Porstmann's introduction of A4 saved us all from an unending nightmare of wobbly paper stacks and rusting heaps of obsolete filing cabinets, so unified eSIM architecture rescues OEMs from the administrative mess of multiple telco contracts. And just as the Phillips head supported more powerful tools while massively reducing labour and resource wastage on the assembly line, so Remote SIM Provisioning slashes the cost of burden of physical SIM swaps in the field while making manufacturing more efficient. 

The technology to standardize, automate, and remotely manage an entire global fleet is here today. By leaving operational friction behind and embracing a single connectivity partner and a unified platform, OEMs and fleet owners can focus their energy on innovation.  

To learn more about how 1GLOBAL IoT connectivity can be the ideal solution for your business, contact our experts today.