The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 17, 1999

Filed:

Aug. 23, 1995
Applicant:
Inventors:

Mark D Foster, Sterling, VA (US);

G David Butler, II, Fort Worth, TX (US);

Sherman L Ackley, Vancouver, WA (US);

Bradley B Baxter, Edmonds, WA (US);

Kenneth A Moisey, Olympia, WA (US);

Kenith L Mann, Portland, OR (US);

Assignees:

Stratus Computer Corporation, Marlboro, MA (US);

U.S. Intelco, Lacey, WA (US);

Electric Lightwave, Van Couver, WA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04M / ;
U.S. Cl.
CPC ...
379220 ; 379207 ; 379230 ;
Abstract

A method of routing a call including a called number in a communications network such as a Public Switched Telephone Network (PSTN), the method including determining if the called number is a network routing number indicating a specific switching node and line associated therewith in the communications network and routing the call within the communications network based on the called number when the called number is a network routing number. Additionally, the method includes identifying a network routing number based on the called number when the called number is not equal to the network routing number and routing the call within the communications network based on the identified network routing number.


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