Patent · US Expired

Method of operating a virtual private network

US6141409A · kind A · utility

56Cited by
19References
19Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 13, 1997
Grant dateOct 31, 2000
Priority date
Expiry dateNov 13, 2017

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S379/901
  • WIPO fieldTelecommunications
  • WIPO sectorElectrical engineering

Abstract

A method of operating a virtual private network includes the steps of: (a) dialing a custom number; (b) receiving the custom number at a switch (20) of a first carrier; (c) routing the call to a switch (18) of a second carrier based on having received the custom number; and (d) when the call to the switch (18) of the second carrier includes a plain old telephone number translation of the customer number, routing the call over the second carrier to a service switching point (26) of a third carrier.

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