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:
Mar. 29, 2005
Filed:
Jul. 16, 2002
Vincente DE Vega DE LA Red, Madrid, ES;
Roberto David Carnero Ros, Madrid, ES;
Vincente de Vega de la Red, Madrid, ES;
Roberto David Carnero Ros, Madrid, ES;
Telefonaktiebolaget LM Ericsson, Stockholm, SE;
Abstract
This invention provides a method intended to solve Number Portability in origin for calls to ported subscribers at a destination classical network, an inter-working function intended to provide the means to support said method, and a hierarchical DNS structure able to provide a new URI indicating interworking with an external database where routing data for said ported subscribers reside. This new URI specifies the Global Title address of the external database and the access protocol to said external database. The NAPTR resolution for that URI implies the use of an Inter-working Feature (IWF) placed in the DNS-resolver part of an S-CSCF, or in a close association, in the originating network. This IWF comprises a Protocol Translator and Controller adapting between DNS format and the external database access protocol format, at least one of a plurality of Application Protocol Handling Modules, and an SS7 Protocol Stack.