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:
Jan. 12, 2021
Filed:
Dec. 31, 2015
Telefonaktiebolaget Lm Ericsson (Publ), Stockholm, SE;
Rogier August Caspar Joseph Noldus, Goirle, NL;
Henk Huitema, Dongen, NL;
Telefonaktiebolaget LM Ericsson (publ), Stockholm, SE;
Abstract
A method system and device are described as a solution for a called party that receives a call from a calling party that intends to be another calling party by means of A-number spoofing. The method comprises a verification request by the called party network during a call setup, made to the network of the assumed calling party. The address of the network of the assumed calling party is derived from the Calling Party Number CgPN identifier or Calling Line Identification CLI as provided by a call setup. When the CgPN is correctly provided, a verification request with the network where the calling party resides will yield status information that the calling party indeed has a call setup with the called party. When the A-number is spoofed, the verification will not yield status information that the calling party has a call setup with the called party.