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.
Patent No.:
Date of Patent:
Nov. 19, 1996
Filed:
Sep. 08, 1995
Applicant:
Inventors:
Paul M Bray, Garland, TX (US);
Douglas R Cardy, Plano, TX (US);
Charles P Shelton, McKinney, TX (US);
Assignee:
DSC Communications Corporation, Plano, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04M / ;
U.S. Cl.
CPC ...
379220 ; 379207 ; 379229 ; 379241 ; 379246 ;
Abstract
Apparatus and method for establishing a virtual private line with automatic ring down is provided. The virtual private line uses the SS7 switching network of present telephone systems coupled between the customer premises equipment of two virtual private line customers.