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Heksagon Blog

Tap into Heksagon's internal knowledge base to propel your business forward. Stay ahead of the evolving telecom fraud landscape, optimize your interconnect operations at scale, and keep pace with present and future industry trends.

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A2P SMS Flash Calls Interconnect & Wholesale Interconnect Billing Least Cost Routing Revenue Assurance SMS Blaster Telecom Fraud

Dark car trunk at night containing a hidden electronics kit with antenna, battery pack, and laptop, representing an SMS blaster rogue base station used in telecom fraud attacks.

Heksagon Blog

SMS Blaster Attacks: Why Rogue Base Stations Are a Growing Telecom Fraud Problem

03. 08. 2026

SMS blaster attacks are an emerging fraud threat most operators cannot yet see. Rather than routing messages through the network, attackers use a rogue base station to push phishing SMS straight to ne…

Heksagon Blog

Flash Calls: What They Are, Why They Cost You Money, and What You Can Do

03. 08. 2026

Flash calls sit in an unusual position in the telecom fraud conversation. They are not fraud in the conventional sense. The GSMA has formally recognized flash calling as a legitimate subscriber authen…

Female hands using a cell phone in a cafe setting. The phone display shows "Suspected Scam" on a red screen and the user's finger is reluctant whether to pick up the call or not. This is a cover image for Heksagon's Telecom Fraud Guide article.

Heksagon Blog

What Is Telecom Fraud? A Complete Guide for MNOs

03. 08. 2026

For anyone new to vendor evaluation, the problem is not a shortage of solutions but the lack of a neutral explanation of what the challenges actually are. This guide covers the major telecom fraud att…

A happy woman smiling and using a cell phone for a phone call.

Heksagon Blog

What Is Interconnect Billing? A Guide for Telecom Operators

03. 08. 2026

Every call that crosses a network boundary, every SMS that passes from one operator to another, and every data session that completes over a roaming partner's infrastructure generates a financial obli…

Heksagon Blog

SMS Blaster Detection in the Field: Lessons from the Yettel Serbia Incident

03. 08. 2026

In late 2025, Serbian law enforcement arrested two Chinese nationals operating an improvised IMSI catcher from a moving vehicle in Belgrade. The device impersonated legitimate base stations, capturing…

A validation that Heksagon won the platinum Juniper award for the most innovative voice fraud detection solution, plain text on a purple Juniper Awards background, with logos.

Heksagon Blog

A Technical Deep Dive into Heksagon’s Juniper Platinum Award-Winning Voice Firewall

03. 08. 2026

In January 2026, Heksagon won the Juniper Research Platinum Award for Most Innovative Voice Fraud Detection Solution at the Telco Innovation Awards. For telecom engineers and fraud management teams, a…

Blue interconnected lines on a dark blue background, signifying least cost routing, serving as a hero image for this blog post.

Heksagon Blog

Least Cost Routing in Telecom: How It Works and Why Real-Time Routing Is Replacing Static Rate Tables

03. 08. 2026

Every outbound call your network carries has a cost. The cost depends on which carrier terminates it, and which carrier terminates it depends on how your routing system is configured. Least Cost Routi…