| 摘要 |
A method of identifying fraud in a telecommunications system. The method includes receiving data related to a current call placed from an originating automatic number indicator (ANI), where the received data includes at least the originating ANI, a billing number and an identification code (step 200). A threshold number and a time interval corresponding to the identification cod e for the ANI are retrieved from a memory (step 202). In addition, billing numbers for prior calls from the originating ANI, if any, and corresponding indicia of the times of calls are retrieved (step 204). A determination is made of whether the number of billing numbers used for current and prior cal ls from the originating ANI over a prior period of time equal to or less than t he time interval exceeds the threshold number (206). If the threshold number is exceeded, a fraud alert is generated (208). If the threshold number is not exceeded, create and store calling record for current call using current cal l data (step 210).
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