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:
Aug. 28, 2012
Filed:
Jul. 07, 2007
Peter Jessen, Bonn, DE;
Tomas Lebl, Bonn, DE;
Maik Kirsch, Sankt Augustin, DE;
T-Mobile International AG, Bonn, DE;
Abstract
The invention relates to a method for blocking roaming steering mechanisms. According to said method, a foreign cellular device (), e.g. a cellular telephone, is registered with nationally visited radio network () when the foreign () and the national cellular network operator have concluded a roaming agreement on mutually debiting cellular services. The invention is characterized in that an anti-roaming steering server () installed in the nationally visited cellular network () identifies manipulated error messages () and selectively manipulates the registration process () of foreign mobile users by adequately influencing signaling processes.