Vladislav Zaimov has spent his career at the intersection of network resilience and enterprise connectivity, witnessing firsthand how the “invisible” infrastructure of telecommunications can either accelerate or paralyze an industry. As mobile technology leaps forward with eSIM and satellite integration, the systems responsible for authorizing these connections are facing a reckoning. In this discussion, we examine the transition from legacy on-premises entitlement servers to high-performance, cloud-native solutions that are reshaping the activation landscape. Zaimov explains how the move away from rigid, decade-old hardware is not just a technical upgrade, but a vital shift for security, scalability, and long-term profitability. Our conversation delves into the operational bottlenecks of traditional data centers and the new benchmarks for carrier-grade performance in the cloud era.
Many operators still rely on decade-old entitlement servers housed in local data centers, yet you suggest this is becoming a significant bottleneck—could you explain the real-world impact of this architectural lag?
It is like trying to run a modern, high-frequency trading platform on a computer from 2010; the friction is felt the moment a customer unboxes a new device and tries to get it online. In the legacy world, adding support for a single new smartwatch or specialized B2B hardware isn’t just a software toggle, but a grueling 12 to 18-month project involving scoped contracts and manual vendor certification. When a Tier-1 operator tries to launch 100 different devices in a single year, they hit a literal speed limit where the physical hardware in their data center simply cannot keep up with the marketing calendar. This results in a frustrating “Day One” experience where a customer buys the latest tech only to find their carrier cannot fully activate its features because the server hasn’t been updated yet. We are seeing a shift where these local data centers, once considered stable assets, are now liabilities that hold back the entire commercial lifecycle of the mobile industry.
Given your background in risk management, how do these legacy on-premises systems complicate the security posture of an operator, especially as eSIM becomes the primary activation method?
On-premises systems create a massive, self-managed attack surface because these servers must be exposed to the public internet by design, yet the crushing burden of patching and vulnerability management falls entirely on the operator’s internal staff. It is a high-pressure environment where missing a single security update for a system that authorizes network access can lead to catastrophic breaches or prolonged outages. Unlike cloud-native setups, these physical machines do not scale or patch automatically, leaving teams to manually manage complex compliance cycles during the most stressful peak activation periods. As we move toward a world where every activation relies on these entitlement flows, having a slow, manual patching process is a recipe for disaster. The industry is beginning to realize that “hosting it yourself” does not mean more control; it often just means more risk and higher maintenance costs for infrastructure that is too critical to fail.
We are seeing a trend where cloud-native platforms are outranking on-premises incumbents; what specific performance advantages are driving this transition according to recent industry benchmarks?
The recent performance data for cloud-based systems is truly staggering, with benchmarks showing a capacity to handle 12,000 transactions per second across three geographically distributed regions. By utilizing an active-active deployment in Microsoft Azure, operators can achieve 99.999% availability with sub-second latency, ensuring that the activation experience feels instantaneous for the user. This architecture is designed so that if one entire region experiences a degradation, the service continues seamlessly without a disruptive failover, providing a level of resilience that a single local data center simply cannot match. For a Tier-1 carrier, this means the system scales elastically during a massive iPhone launch rather than being permanently over-provisioned and sitting idle for the rest of the year. This shift allows more than 40 service providers globally to retire their bulky physical infrastructure in favor of a managed service that grows and breathes with their traffic.
Beyond just activating a phone, how does modernizing this “invisible” server change the way telecommunications companies actually make money and roll out new services?
The entitlement server is evolving from a simple “on-off” switch into a sophisticated revenue layer that can gate high-value features like network slicing and premium 5G tiers. It enables a carrier to switch on satellite connectivity or SIM-based authentication—which could finally replace those annoying SMS one-time passwords—without needing any new physical hardware in the network. Because the cloud-native platform stays perfectly aligned with GSMA standards and the latest device specs from Samsung, Google, and Apple, new services can be rolled out in weeks rather than quarters. This speed allows operators to monetize features exactly when the market demand is highest, turning a technical necessity into a strategic business advantage. The real story here isn’t just about saving money on servers; it’s about the ability to innovate at the speed of software rather than being held back by a box in a basement.
What is your forecast for the role of Entitlement Servers as we move toward 2030?
I believe the entitlement server will become the central brain of the “on-demand” network, where every aspect of a user’s connection is tailored in real-time. By 2030, we will see the total disappearance of the 18-month upgrade cycle, replaced by continuous integration where new device capabilities are supported the same day they are announced. Operators who fail to migrate to the cloud will find themselves unable to compete in a world of satellite-to-phone connectivity and massive IoT deployments that require instant, secure authorization. We are moving toward a frictionless ecosystem where the network adapts to the device, not the other way around, finally ending the era of the “wait-and-see” activation. The leaders in the 2025 and 2026 rankings have already shown that the future belongs to those who treat connectivity as a dynamic service rather than a static piece of hardware.
