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:
Jun. 06, 1995
Filed:
May. 21, 1993
George Hasenauer, Greenbelt, MD (US);
William A Kay, Glendora, NJ (US);
Von K McConnell, Springfield, VA (US);
Bell Atlantic Network Services, Inc., Arlington, VA (US);
Abstract
A switching office translates a dialed extension number consisting of fewer digits than the minimum number normally required to identify a destination station into a Centrex number of at least the minimum number of digits. At least for those extension numbers identifying lines connected to a different switching office, the Centrex number triggers a query and response procedure to access data stored in a database in a central control. The accessed data is used to translate the Centrex number into an actual destination number uniquely identifying a particular communication line. The central control returns the destination number to the switching office for use in providing a requested communication service. Call processing methods and communication systems using these translations can extend a number of Centrex features, such as extension number dialing and extension number based call transfer, to a business subscriber's various premises served by different end offices.