The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 09, 2020
Filed:
Aug. 13, 2019
T-mobile Usa, Inc., Bellevue, WA (US);
Homer Nicolas B. Filart, Renton, WA (US);
T-Mobile USA, Inc., Bellevue, WA (US);
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.