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:
Apr. 13, 2010
Filed:
Jun. 03, 2005
Gregory A. Freitag, Batavia, IL (US);
Mohamad M. Mehio, Naperville, IL (US);
Gerald W. Pfleging, Batavia, IL (US);
George P. Wilkin, Bolingbrook, IL (US);
Gregory A. Freitag, Batavia, IL (US);
Mohamad M. Mehio, Naperville, IL (US);
Gerald W. Pfleging, Batavia, IL (US);
George P. Wilkin, Bolingbrook, IL (US);
Alcatel-Lucent USA Inc., Murray Hill, NJ (US);
Abstract
A method in one example comprises the steps of establishing a location database for a first network that associates Internet Protocol address information for VOIP telephony devices with physical locations for the VOIP telephony devices; upon detecting registration of a VOIP telephony device through a network port of the first network, determining physical location of the VOIP telephony device by identifying physical location of the network port through which the VOIP telephony device is connected, and updating the location database; and, upon detecting IP telephony activity originating from a remote VOIP telephony device connected to the first network through a VPN gateway, determining physical location of the remote VOIP telephony device connected through the VPN gateway by identifying physical locations of network resources of a second network to which the remote VOIP telephony device is connected, and updating the location database; such that updated location information is provided to a 911 server in the event that an emergency call is originated by any VOIP telephony device or remote VOIP telephony device.