Patent · US Expired

Method for verifying telephone call back information for return calls which are initiated via the internet

US7715543B2 · kind B2 · utility

7Cited by
8References
20Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJan 30, 2002
Grant dateMay 11, 2010
Priority date—
Expiry dateMay 4, 2023

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04M3/56
  • WIPO fieldTelecommunications
  • WIPO sectorElectrical engineering

Abstract

According to the inventive method, call back information is transmitted to a telephone network via an internet terminal using a click-to-dial service. In order to verify the information, the telephone network extracts internet terminal specific information from the access server via the internet. After comparing the call number information which is contained in the call back information and in the internet terminal specific information, the return call is initiated or suppressed. Return calls to subscribers who do not want to be called are thus suppressed.

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