Patent · US Active

Communications network

US10701205B2 · kind B2 · utility

0Cited by

3References

13Claims

0Family size

Assignee

BRITISH TELECOMMUNICATIONS public limited company · GB

Inventor

Robert Claxton · London, GB

Key dates

Filing date	Apr 3, 2018
Grant date	Jun 30, 2020
Priority date	—
Expiry date	Apr 3, 2038

Classification

Technology area (CPC H)Electricity
CPC primaryH04M2203/556
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.