LONDON -- Starhome (www.starhome.com), the leading provider of roaming services and converged solutions has launched the Anti-SOR (steering-of-roaming) Detector which provides mobile operators with the capability to detect roaming partners who apply Anti-SOR practices. Starhome’s Anti-SOR Detector solution complements its comprehensive suite of roaming services with built in logic to identify methods being used by roaming partners to counteract the SOR and provide the operator with focused alarms and comprehensive reports about violators.

The GSM Association’s BARG (Billing and Accounting Roaming Group) guided against unilaterally applying Anti-SOR. This can be defined as any technical network based method which can effectively frustrate, counteract or undo the effect of SOR when applied without the consent or participation of either the roaming subscriber or the HPMN operator. Starhome’s Anti-SOR Detector allows the operator to detect potential revenue leakage by identifying anti-SOR activities such as the blocking of “update-location” messages from reaching their SOR platform, locking roamers into a network and simulation of manual selection.

The Anti-SOR Detector interoperates with Starhome’s Intelligent Preferred Network (IPN) solution and continuously monitors traffic statistics and records exceptional changes in traffic volume, rates of manual selection events, signalling following IPN actions (e.g. after rejects). Upon detection there is potential with the Anti-SOR Detector to apply resistance signalling to defeat the anti-SOR as well as triggering the appropriate alarm to the operator to make it aware of this potential breach of its roaming agreement.

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