Our blog — VAS Experts

How We Deployed Our Own Mobile Operator Test Lab for Core Network Testing

The mobile core is an infrastructure where all components are tightly interconnected. Changes to a tariff plan can affect how the network processes subscriber traffic: which applications to account for, what to block. That is why many scenarios in mobile solution development cannot be fully tested in isolation.

Functional testing of Stingray BNG using an Ixia traffic generator

In BNG-related projects, not only performance but also predictable system behavior under different conditions is critical. Before moving on to load testing, it is important to verify that the device correctly implements both basic and advanced functions in accordance with RFC requirements. This article explains how functional testing of a BNG was organized using a test environment built according to the requirements of a nationwide telecom operator.

How an Operator Can Scale Without Rebuilding the Network

Modern telecom operators and service providers face continuous growth in traffic and requirements for its processing and analytics. The Stingray platform by VAS Experts offers a solution that not only provides full traffic control at L2–L7 levels, but also allows easy capacity scaling as needed.

Wi-Fi HotSpot in an Operator Network: From Isolated Solution to BNG Integration

Wi-Fi HotSpot has long ceased to be just a public internet access point. For an operator, it is a distinct service with its own authorization logic, billing integration, and the need to comply with regulatory requirements. This article explains how a Wi-Fi HotSpot works at the network level, why it is often deployed as an isolated system, and what changes when it becomes part of a BNG.

Neutralizing a Botnet in an Operator Network

Infected subscriber devices are not just a personal problem. Inside an operator network, that traffic begins competing for shared resources. NAT pools are the first to run out. Complaints about unstable connections and service failures follow. A single infected segment can drag dozens of "clean" users down with it.

January–March 2026 Digest

The first quarter of 2026 was packed with deployments, international partnership growth, and new technological milestones for the Stingray platform at VAS Experts. Here’s a look at the key highlights from the beginning of the year.

How to Build a Mobile Operator in 2026

Business. "Why build one at all? Where’s the business? There are already plenty of operators, every subscriber has 10 SIM cards, and connectivity is cheap" — this is usually the reaction such an idea gets in 2026. Yet new operators keep emerging, and answering this question is exactly where you should start.

3GPP Compliance in Action: How VAS Experts' PGW Restored 4G Roaming in Australia

A modern MVNO operator specializing in eSIM sales for tourists operates in a highly competitive market. Its main asset is seamless internet connectivity for subscribers anywhere in the world. Instant profile activation, a stable signal, and predictable speed are the keys to the loyalty of thousands of travelers.

MNO and MVNO: How the mobile communications market has evolved

The modern mobile communications market has been shaped over many years, during which the structure of the industry has evolved and new operator models have emerged. In this article, we take a look at how the mobile sector has developed over the past 10–15 years.

UDP Flood: Why Terabit Attacks Have Become the Norm and How to Prepare

UDP Flood attacks are among the most powerful DDoS attacks in terms of both packet frequency and data volume. This type of attack is primarily aimed at overloading the channel with “junk” packets, which damages the operator's equipment and degrades the quality of subscribers' connections.