Patent ID: 10681556

Abstract:
The present disclosure describes techniques for detecting and mitigating a spoof communication within a network, such as a Session Internet Protocol (SIP) network. Determination and mitigation of spoof communication may be performed by a spoof mitigation module associated with a Home Public Land Mobile Network (HPLMN). A server, such as a SIP server, may receive a call request (i.e. SIP INVITE message) from an originating device to initiate a Voice over Internet Protocol (VoIP) communication with a recipient device. In response to the originating device being associated with a HPLMN subscriber account, the server may determine an origin network of the SIP INVITE message and compare the origin network with a most recent instance of registration data associated with the originating device and recorded within the HPLMN. A match indicates that the call request is likely reliable. A mismatch may indicate that the call request is likely a spoof communication.