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. 23, 2011
Filed:
May. 18, 2007
Sandra Tartarelli, Karlsruhe, DE;
Roman Schlegel, Köniz, CH;
Saverio Niccolini, Heidelberg, DE;
Marcus Brunner, Leimen, DE;
Sandra Tartarelli, Karlsruhe, DE;
Roman Schlegel, Köniz, CH;
Saverio Niccolini, Heidelberg, DE;
Marcus Brunner, Leimen, DE;
NEC Europe Ltd., Heidelberg, DE;
Abstract
A method for identifying undesired telephone calls (Spit/Spam over IP), preferably in a VoIP network, in which the telephone calls coming in for a telephone subscriber, the callee, from at least one calling telephone subscriber, the caller, are subjected to a test or more precisely to a statistical analysis. The method is developed in such a manner that in the framework of the test for incoming calls, the time of the receipt of each call is determined and in each case the probability that the call is undesired is determined, where for the calculation of the probability the time of the receipt of the call, or a parameter dependent thereon, is related to the temporal distribution of previous undesired calls.