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:
Sep. 04, 2001
Filed:
Jan. 15, 1999
Gerhard Lechner, Vienna, AT;
Helmut Rau, Germering, DE;
Eckard Schöttle, Krailing, DE;
Dirk Weiler, Germering, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
In accord therewith, at least one identification number (PIID) for identifying a private network (PISN) for access to a first private branch exchange (PBX,) to a subscriber (BS) who was registered and a mobile subscriber telephone number (MSISDN) that was sent into the public mobile radio telephone network (PLMN), is stored in the public mobile radio telephone network (PLMN). A routing number (PRIN) is offered in the mobile radio telephone network on the basis of the incoming mobile subscriber telephone number (MSISDN) and is checked with reference to the stored identification number (PIID) as to whether the call destination lies in the area of a private branch exchange (PBX,) of the same private network (PISN) to which the first private branch exchange (PBX,) belongs. When this is the case, routing information (RIN) that define the call destination are sent—after clear down of the call in the public mobile radio telephone network—to the first private branch exchange (PBX,) that subsequently sets up the connection to the call destination in the private network (PISN) on the basis of the received routing information (RIN).