Client Success Story > Empowering a Middle Eastern Telecom Operator
Empowering a Middle Eastern Telecom Operator with Advanced Anti-Spoofing Rules on a Signaling Firewall
Our organization successfully enhanced the Signaling Firewall to expand mobile anti-spoofing capabilities for a leading telecom operator in Kuwait. Initially, the system was designed to identify the operator's subscribers by querying the Home Location Register (HLR) using ATI to retrieve roaming information. To extend protection to all Kuwaiti users, we implemented a dynamic process for selecting the appropriate HLR Global Title (GT) based on Number Portability (NP) resolution.
This advancement enabled the system to detect spoofing attempts from both in-network and out-of-network users, ensuring comprehensive anti-spoofing protection. As a result, the telecom operator now benefits from a scalable, robust solution that enhances security and safeguards all users, not just its own subscribers.
The Challenges
Spoofing reports from customer.
Signalling Firewall has to accept ATI from other operators.
Logic has to be modified in order to always generate an HLR ATI query.
The Solutions
The Outbound Access will intercept the outgoing ATI query, retrieve the Routing Number (RN) from the MAP MSISDN, and use it to determine the appropriate HLR Global Title (GT).
The ATI SCCP Called Party GTA will be updated to reflect the correct HLR Global Title based on the retrieved RN.
The MAP ATI MSISDN will be modified to remove the portability RN prefix, ensuring proper routing and processing.
The Outcomes
Spoofing incidents were drastically reduced, leading to improved network integrity and security.
The upgraded firewall successfully handled increased traffic loads, ensuring no service interruptions.
Real-time monitoring provided enhanced visibility into traffic, allowing faster detection and mitigation of threats.