Patent · US Expired

Efficient communication through networks

US6188756A · kind A · utility

102Cited by
34References
16Claims
0Family size

Inventor

Key dates

Filing dateOct 8, 1996
Grant dateFeb 13, 2001
Priority date—
Expiry dateOct 8, 2016

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04Q2213/13389
  • WIPO fieldTelecommunications
  • WIPO sectorElectrical engineering

Abstract

A method and device that interrogates the availability of a called party before placing a communication from the calling party to the called party. A callback may be initiated so that both communications are completed simultaneously. The routing of communication may take place through any one of a number of different networks and at another time of the day, even if the caller does not otherwise have access to those networks.

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