Telecom fraud detection for network protection

Fraud and illegal robocalling continue to erode trust in voice networks, costing providers time, revenue, and reputation. TelcoBridges helps service providers stop these threats at the network edge by embedding fraud detection, call validation, and traffic-monitoring tools directly into our ProSBC and Tmedia platforms. Suspicious calls can be identified, rerouted, or blocked in real time before they ever reach subscribers.

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Reliable defense against telecom fraud

The TelcoBridges Fraud Prevention Solution brings together several components that work in tandem to stop fraudulent traffic. These include integrations such as the Do-Not-Originate (DNO) Module powered by Somos for verified caller data, advanced policy-based routing to automatically reject or reroute suspicious calls, built-in STIR/SHAKEN call authentication to validate caller identities, and real-time monitoring tools that provide visibility into call behavior and network anomalies. Each element strengthens a broader, adaptive framework designed to help service providers meet FCC robocall mitigation standards, safeguard their customers, and preserve trust in voice communication.

How the DNO Module works with TelcoBridges

TelcoBridges has introduced a DNO Module to help you meet new FCC DNO blocking requirements.

Our DNO Module, available “out-of-the-box” as a ready-to-use add-on in your ProSBC or Tmedia license, is the fastest and easiest way to ensure compliance with the FCC mandate.

The DNO module automatically checks every outbound call passing through ProSBC or Tmedia systems in real time. Calls originating from numbers that are a match to the DNO database can be blocked before the next leg, helping service providers stay compliant with the FCC.

TelcoBridges’ DNO Module relies on Somos’ RealNumber database, the most comprehensive database on the market, to maximize protection and ensure complete network integrity.

The DNO module comes preloaded and preconfigured, eliminating the need for complicated setup. All verification activity is recorded directly in a network’s Call Detail Records (CDRs), providing full visibility into which calls were checked and rejected.

Why choose TelcoBridges for telecom fraud prevention

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Fraud protection that starts at the network edge

TelcoBridges gives service providers the ability to stop fraudulent calls before they enter the network. By embedding fraud detection and call validation directly into ProSBC and Tmedia, providers can block suspicious traffic in real time, using tools like call pattern analysis, policy-based routing, and trusted data sources (such as DNO lists).

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A future-proof defense that evolves with threats

Robocaller fraud is constantly changing, and so are TelcoBridges’ defenses. With a “no-end-of-life” policy and regular platform enhancements, service providers stay protected without costly migrations or product replacements. As new fraud schemes emerge, TelcoBridges keeps pace through active industry collaboration, continuous software updates, and integrations that extend the life and security of every deployment.

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Expert support when needed

TelcoBridges offers options for support from our Technical team based at our headquarters in Canada. From deploying the DNO module to monitoring call traffic and responding to potential threats, our experienced technical team can help keep networks secure and protected.

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20+ years of telecom expertise

TelcoBridges combines deep industry knowledge with proven telecom fraud detection solutions. Backed by our “no end-of-life” policy, the Fraud Prevention solution receives ongoing updates and enhancements, ensuring networks stay compliant, secure, and protected against evolving telecom fraud threats.

Stop call fraud before it affects your network

Ensure every call is verified, secure, and compliant with TelcoBridges’ telecom fraud management solution. To learn more, fill out the form below or call us at +1 450 903-8194.

Frequently Asked Questions

Telecom fraud is any intentional misuse of communication networks, systems, or services to gain an unlawful financial or operational advantage. In practice, it often involves bad actors exploiting vulnerabilities in phone networks to make unauthorized calls, spoof caller IDs, bypass billing systems, or trick consumers into revealing sensitive information.

Telecom fraud can take several forms. Caller ID spoofing occurs when attackers disguise their numbers to impersonate trusted organizations. Wangiri fraud involves one-ring calls that trick recipients into calling back expensive international numbers. PBX hacking happens when private phone systems are compromised to route unauthorized calls. Subscription fraud involves obtaining services using stolen or false identities. International revenue share fraud exploits premium-rate international numbers to generate illicit revenue. These threats pose significant risks to telecom companies and can have a negative impact on revenue, network integrity, and customer trust.

The FCC’s rules require telecom networks to block calls using a reasonable DNO list, covering invalid, unallocated, unused, and subscriber-requested numbers. Using a DNO list eliminates the need for caller notifications, unlike analytics-based blocking, which requires returning a SIP “603+” code. Compliance reduces enforcement risk, prevents traffic blocking, and helps telecom companies strengthen consumer trust by cutting call fraud attempts at the network level.