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.

Date of Patent:
Aug. 09, 2022

Filed:

Mar. 17, 2020
Applicant:

British Telecommunications Public Limited Company, London, GB;

Inventors:

Simon Thompson, London, GB;

Robert Claxton, London, GB;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04M 3/436 (2006.01); H04L 9/40 (2022.01); H04M 3/22 (2006.01); H04M 3/42 (2006.01);
U.S. Cl.
CPC ...
H04M 3/436 (2013.01); H04L 63/1483 (2013.01); H04M 3/2281 (2013.01); H04M 3/42059 (2013.01); H04M 2203/6027 (2013.01);
Abstract

Computer-implemented methods of placing and processing calls in a communications network are provided. The computer-implemented method of processing calls in a telephone network comprises: identifying a plurality of calls that have been made by a particular telephone number to telephone numbers in the telephone network; determining whether a sequence in which the calls were placed corresponds to a correct order for calling those telephone numbers, the correct order being determined based on a predetermined order for calling telephone numbers in the telephone network; and determining that one or more of the calls were made by spoofing the particular telephone number if the sequence in which the calls were placed does not correspond to a correct order.


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