Real-Time Call Authentication with Oculeus 2FN: Preventing CLI Spoofing Attempts

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Real-Time Call Authentication Solution Combats CLI Spoofing

The proliferation of cybercrime-as-a-service has transformed the landscape of telecommunications fraud, with sophisticated gangs subverting networks and selling their services to scammers worldwide. These malicious actors employ tactics such as caller ID spoofing, SIM banks, and prepackaged impersonation kits to deceive victims. In response, Oculeus has launched its Two Factor Network (2FN) solution, a carrier-grade security framework that authenticates traffic in real-time to prevent CLI spoofing.

How the 2FN Solution Works

The 2FN solution enables telcos to verify caller identity, determine roaming status, and prevent fraudulent calls from reaching their networks. This peer-to-peer check occurs during call setup or in parallel with messaging, allowing the terminating network to instantly confirm the trustworthiness of the presented identity. If a bad actor attempts to impersonate a telco in the peer network, the 2FN solution’s roaming status check will detect the spoofed mobile number.

Industry Reports Highlight the Severity of CLI Spoofing

According to the 2025 Global Leaders’ Forum (GLF) Fraud Report, 59% of global carriers consider protecting against CLI spoofing a top security priority. The 2025 Europol Position Paper on Caller ID Spoofing further highlights the severity of the issue, estimating that up to 90% of incoming international traffic in unprotected network segments consists of spoofed calls and other fraudulent traffic.

The Benefits of Oculeus 2FN

Oculeus 2FN addresses this issue by restoring trust in caller IDs and increasing call completion rates. By ensuring legitimate traffic flows across networks while reducing the overhead associated with CLI spoofing attacks, telcos can protect their retail and wholesale revenues. The solution also supports branded calling data, such as Rich Call Data, to enhance the user experience and improve completion rates.

“The launch of Oculeus 2FN represents a significant shift from reactive filtering to proactive, real-time telecoms fraud prevention,” said a company spokesperson. By adopting this solution, telcos can effectively combat CLI spoofing and other forms of telecommunications fraud.