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. 08, 2001
Filed:
Jul. 09, 1998
Raymond F. Albers, Vienna, VA (US);
Charles H. Eppert, III, Fairfax, VA (US);
Barry Pershan, Olney, MD (US);
Daniel C. Michaelis, Ellicott City, MD (US);
Michael G. Pilkerton, Fairfax, VA (US);
Robert D. Farris, Sterling, VA (US);
Christine W. Huff, Vienna, VA (US);
Bell Atlantic Network Services, Inc., Arlington, VA (US);
Abstract
Following the Communications Assistance for Law Enforcement Act (CALEA), the FBI developed a standard set of communication services and interfaces. for lawfully authorized electronic surveillance, for both call data recording and content recording. Existing public switched telephone networks use a variety of switches. Not all of the switches in use are capable of performing the routines required by the CALEA standards. In accord with the invention, Advanced Intelligent Network (AIN) and/or Local Number Portability (LNP) functionality controls routing and billing of incoming and outgoing calls for the surveillance target. The routing is handled in such a manner that calls to and from the target are directed to a regional switching office which performs those functions for switches in the region which lack that capability. Through this arrangement call detail records (CDRs) regarding the target are accumulated and transferred to a law enforcement authority. If the surveillance of a particular target also requires monitoring of the content of the target's calls, the calls are routed through a switch or an Intelligent Peripheral (IP) having the requisite surveillance capability.