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:
Apr. 20, 1999
Filed:
Oct. 17, 1996
Jean Marie Bunge, Clare, IL (US);
Susan Maureen Harrigan, Downers Grove, IL (US);
Wayne Ronald Kalbow, Glen Ellyn, IL (US);
John William Russell, Naperville, IL (US);
Barbara Joan Schlaman, Naperville, IL (US);
Susan Marie Trebs, Crete, IL (US);
Lucent Technologies Inc., Murray Hill, NJ (US);
Abstract
A method for implementing all blocking controls in a telecommunications system supporting ported directory numbers comprises initializing each switch with a call blocking control. In the preferred embodiment, ported directory numbers are identified, and a number portability data base is accessed to aid in determining whether the call blocking control applies to the ported directory number. If the ported directory number is not subject to the implemented call blocking control, the ported directory number is exempted.