Patent ID: 11876927
Assignee: RESILIENT PLC
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A fraud detection system comprising:
a call switching unit for receiving an incoming call;
a call information extraction unit for processing the incoming call to extract call signaling information associated with the incoming call; and
a fraud scoring unit for determining a fraud score associated with the incoming call using the extracted call signaling information, the fraud score indicating a likelihood that the incoming call is from a fraudulent caller;
wherein the call information extraction unit is configured to determine whether or not the calling party is hiding a presentation calling line identification, (P-CLI), and/or whether or not the signalling information of the incoming call comprises a network calling party identification, (N-CLI), and in dependence thereon, to determine one or more call trust factors for the incoming call;
wherein the fraud scoring unit is configured to determine the fraud score for the incoming call using the determined one or more call trust factors for the incoming call; and
wherein the call switching unit is configured to forward the incoming call via a telecommunications network to one of a plurality of different destinations based on the fraud score determined by the fraud scoring unit or to forward the incoming call and the determined fraud score for the incoming call to a destination associated with the incoming call.