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. 30, 2010
Filed:
Dec. 21, 2001
Rauno Ratilainen, Espoo, FI;
Pál Köpösdi, Budapest, HU;
Rauno Ratilainen, Espoo, FI;
Pál Köpösdi, Budapest, HU;
Nokia Corporation, Espoo, FI;
Abstract
Number portability is a service where a subscriber can keep his old telephone number within a portability cluster and thus retain easy contactibility. Because of number portability, a called address, i.e. B-number, no longer refers to the subscription network/number range owner and the old rule 'the number range of the called party reveals the tariff level' is no longer valid. To overcome this defect all intelligent network-like service invocation requests are routed (-) via a network node performing a number portability function to the network node controlling the service. The node performing the number portability function performs (-) a mapping of the B-number and relays (-) the service invocation requests indicating the subscription network/number range owner.