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:
May. 18, 2004
Filed:
Dec. 16, 1999
Anton N. Stadelmann, Bolligen, CH;
Werner Hirzel, Niederscherli, CH;
Walter Heutschi, Jegenstorf, CH;
Swisscom AG, Bern, CH;
Abstract
Telecommunication method which enables a subscriber of a home mobile radio network (HPLMN) to connect to a visited mobile radio network (VPLMN, VPLMN′) without a roaming agreement with the home mobile radio network (HPLMN) in that the subscriber is assigned a first mobile subscriber identification (IMSI ) from the number range of his home mobile radio network (HPLMN) and a second IMSI number (IMSI ) from the number range of a partner network (PPLMN), the partner network having additional roaming agreements, and a common call number (MSISDN) being allocated to the two said IMSI numbers (IMSI , IMSI ). The two IMSI numbers (IMSI , IMSI ) may preferably be stored on a common or on different identification modules.