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:
Jun. 04, 2019
Filed:
Feb. 23, 2016
At&t Intellectual Property I, L.p., Atlanta, GA (US);
Bernard S. Ku, Austin, TX (US);
Lakshminarashimhan Naidu, Pearland, TX (US);
James W. Forsyth, Royal Oak, MI (US);
AT&T INTELLECTUAL PROPERTY I, L.P., Atlanta, GA (US);
Abstract
A method includes receiving, at a network component of a first carrier network from a source device, a telephone number of a destination device configured to communicate via a second carrier network. The method further includes in response to a query message sent to a telephone number mapping device of an internetwork packet exchange network, receiving a name server record at the network component, the name server record indicating a domain name associated with a second telephone number mapping device of the second carrier network. The method also includes in response to the network component sending the domain name to a domain name server of the internetwork packet exchange network, receiving an Internet protocol address of the second telephone number mapping device. The method includes sending, from the network component to the second telephone number device, a second query message based on the Internet protocol address.