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. 30, 2020
Filed:
Apr. 03, 2018
Applicant:
British Telecommunications Public Limited Company, London, GB;
Inventor:
Robert Claxton, London, GB;
Assignee:
BRITISH TELECOMMUNICATIONS public limited company, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04M 3/436 (2006.01); H04M 3/22 (2006.01); H04M 3/42 (2006.01);
U.S. Cl.
CPC ...
H04M 3/436 (2013.01); H04M 3/2218 (2013.01); H04M 3/42059 (2013.01); H04M 2203/556 (2013.01);
Abstract
A method of classifying unwanted robot calls on the basis of the duration of a plurality of calls made from a single telephone number. If analysis of the distribution of call duration indicates that the calls are robot calls then the single telephone number is flagged such that subsequent calls from that number are not connected to the called party.