Patent · US Expired

Remote test call unit and service

US5502756A · kind A · utility

12Cited by
4References
12Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 28, 1992
Grant dateMar 26, 1996
Priority date
Expiry dateOct 28, 2012

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04M3/323
  • WIPO fieldTelecommunications
  • WIPO sectorElectrical engineering

Abstract

Reliability of telephone service is increased by providing a test call apparatus configured to launch a test call to a preselected telephone number in response to a call from a remote location requesting that the test call be placed. The test call apparatus launches the test call as if the call were being made from the user-supplied originating area code, exchange, or phone number. The test call apparatus then bridges the requesting call and the test call to facilitate analysis of the routing of the test call.

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