Why Entitlement Servers are Central to Scaling Consumer eSIM

The current mobile landscape presents consumers with greater choice than ever: eSIMs have upended the customer-operator relationship, shifting from multi-year contracts to a flexible, customer-driven model based on personalization and short-term commitments.

Traditional operators and the emerging MVNO sector now compete for customer attention at every possible opportunity. Not all consumer eSIM services are created equal, however. In such a crowded field, the quality, coverage, pricing, and privacy of each eSIM service can vary dramatically, depending on the telecommunications infrastructure each service is built upon.

While prominent advertising and branding may help attract customers in the short term, sustained success requires the technical capabilities to deliver a superior customer experience. The flexibility of eSIMs allows users to instantly switch providers when needed: operators must embrace new technologies to build an ecosystem that can both attract and retain customers.

One key, but often overlooked, element is the entitlement server.

What is an Entitlement Server?

An entitlement server is a network component that accelerates and simplifies the user experience of eSIM activation, device authentication and eSIM entitlement management for new mobile devices. In essence, they coordinate various operator services and device configurations, ensuring that the right network features are enabled for the right users.

From a customer perspective, an entitlement server allows users to unbox a new phone (or smartwatch, or tablet...) and immediately activate it, with the relevant network features enabled and ready to use.

Without a mobile network entitlement server, authorizing these features can be a time-consuming manual process. Crucially, the entitlement server automatically ensures compatibility between device and carrier, allowing end users to access the promised extent of their mobile OS and carrier services, without needing to navigate compatibility issues manually.

Used in conjunction with network features like SM-DP+, an entitlement server delivers instant, secure activation of eSIM and network services at scale. It also allows operators to manage restricted or “premium” features of their network. The server determines which services the user is authorized to access and ensures they are activated on their device. These can include specialist services like VoWi-Fi (Voice over Wi-Fi calling), FaceTime, 5G, and satellite connectivity. This capability makes it simple to introduce new eSIM monetization options, provided through a frictionless UX.

The rise of MVNOs

Mobile Virtual Network Operators (MVNOs) run the gamut from rebranded eSIM resellers with no internal telecommunications expertise or infrastructure ownership to “heavy” MVNOs that physically govern aspects of their network infrastructure and can therefore determine the pricing, coverage, and quality of their services.

This has been compounded by the rise of “embedded telco”, where brands with no prior telecommunications experience can integrate mobile plans and other eSIM services into their regular platforms. This is achieved by outsourcing the mobile operations to an established eSIM supplier and mobile operator like 1GLOBAL. Where telecommunications were once reserved for a select few specialist operators, it’s now common for non-telco brands like digital banks, airlines, and supermarkets to become connectivity suppliers.

In this environment, mobile operators are no longer competing with each other for customer attention: they’re measured against any brand with a digital presence.

The relationship between OEMs, operators, and entitlement servers

Over the last decade, the telecoms market has experienced a shift in influence from traditional mobile operators to OEMs. Increasingly, the features and customer expectations for a mobile experience are being determined by a device’s operating system, and not the network provider. We’ve previously covered how eSIMs have shifted the customer interactions with their connectivity provider away from physical stores and mail-order to a purely digital plane, experienced almost entirely through the settings app of their device’s OS. Hardware is no longer built to accommodate MNO services; now, operators adapt their services to conform to an existing UX.

This new era of OS-led telecoms has altered customer expectations of their mobile experience, especially when using a new device for the first time. Instant, out-of-the-box connectivity has replaced arduous manual setups.

For mobile operators, this requires real-time entitlement validation, instant device recognition, and zero-touch activation, where a connectivity plan is distributed to the device without manual input from the user. Doing so securely and at scale requires both a viable RSP service and an entitlement server.

Operating at scale with an entitlement server

Entitlement servers and eSIMs are closely intertwined, as the servers help make many of the potential benefits of eSIM available to consumers. Entitlement servers facilitate the transition from SIM-card devices to eSIMs, as well as supporting the quick transfer of eSIMs between devices.

This allows operators to deliver the greatest possible customer experience – it’s the operator’s responsibility to ensure that their customers can access these features. Here, the entitlement server again provides the answer. Not only does this boost customer retention, but it also allows operators to diversify their services and introduce new revenue streams that truly benefit their users.

The eSIM OSS transformation

Entitlement servers are often cloud-based, making them better suited to serving the rising volumes of wireless mobile devices and cloud applications. This capability is essential considering eSIM and 5G: non-cloud OSS/BSS systems are ill-equipped to handle the ongoing expansion of the telecommunications industry and serve the growing demand for wireless connectivity across emerging markets like autonomous driving and wearable tech.

The role of the entitlement server is twofold – it delivers a frictionless, “out-of-the-box" experience for new devices, and allows operators to dynamically personalize their services and offer additional features to users, based on individual data and usage patterns.

The second role is a burgeoning revenue stream for mobile operators. By automatically authorizing a device for access to higher-spec network features, mobile operators incentivize and build stronger customer relationships. The same process reduces friction at the operator end. An automated, cloud-based authorization strategy replaces manual provisioning. By instantly delivering configuration, an ES ensures customer expectations are met, while reducing strain on customer care departments and IT administrators.

Serving the multi-device ecosystem with an entitlement server

This scaling support isn't limited to individual users – entitlement servers make it simpler to accommodate multiple devices per customer. In an era where secondary cellular devices like smartwatches, tablets, and eSIM-enabled laptops are on the rise, this function is central to their appeal.

The first eSIM-enabled consumer device wasn’t a phone: it was the 2013 Apple Watch Series 3. Now, the smartwatch market is worth over $30 billion, a figure that's expected to double in the next decade. Apple has expanded its line to four separate cellular models, with most other major OEMs offering their own take on wearable tech.

Meta's Smart Glasses were a surprise hit this year, selling over seven million units. Meanwhile, connected fitness trackers like WHOOP and the Oura Ring have unearthed a demand for discrete, screen-free smart accessories.

While operators can’t predict the hardware of the future, remaining flexible and ready to serve new use cases is a prerequisite for success. An entitlement server makes this possible by providing customers with instant access to all features of their new device when they first turn it on.

Where prior authorization strategies were based around the assumption of a single SIM per user, entitlement servers and Remote SIM Provisioning (RSP) allow operators to identify, authorize, and distribute multiple SIM profiles and network features to the different devices for the same user. The entitlement server differentiates between a single subscriber and their connected devices, enabling an ongoing dialogue between the user, OEM, and carrier.

Without an entitlement server, this model can quickly lead to frustrated customers, due to Rich Communications Services (RCS) like VoLTE or Wi-Fi calling failing to work on all devices, or lengthy setup times for new devices. Over time, these issues can swiftly persuade customers to look elsewhere for their mobile connectivity.

The 1GLOBAL eSIM entitlement server solution

As global eSIM adoption rates continue to spiral, operators must invest now in scalable and digital-native infrastructure. Moving systems to the cloud and replacing manual workflows are vital to this.

The 1GLOBAL Entitlement Server is a cloud-native function (CNF) designed to serve this future. As a CNF, the 1GLOBAL Entitlement Server requires no physical infrastructure or investment on the client side, facilitating rapid go-to-market and minimizing manual effort on both the customer and operator side.

The 1GLOBAL Entitlement Server is used by leading mobile operators to ready their OSS/BSS for rising demand in the coming years. The service uses a suite of APIs to remotely configure a carrier’s services on any devices that use the network, identifying authorized devices and ensuring the correct software features are distributed to the correct devices, every time.

Learn more about 1GLOBAL Entitlement Server solutions, or contact our team directly to discuss using the service with your business.