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:
Jul. 12, 2016
Filed:
Aug. 19, 2013
Sprint Spectrum L.p., Overland Park, KS (US);
Nicolas A. Nehme Antoun, Olathe, KS (US);
Pierce Gorman, Lee's Summit, MO (US);
Saravana Velusamy, Olathe, KS (US);
Sprint Spectrum L.P., Overland Park, KS (US);
Abstract
Example methods and systems for requesting information from the Internet Domain Name System (DNS) based on a destination and one or more codecs of a source specified within a computer-readable invitation to establish a communication session are described. A source gateway or a user agent device can generate the invitation. A DNS record associated with the destination can specify codecs used by the destination or a gateway the destination uses to carry out communication sessions. A proxy server that received the invitation and the DNS record can select a gateway that uses a codec that matches a codec used and preferred by a gateway. The proxy server can forward the codec to selected gateway, in particular, to an IP address and port associated with the selected gateway, for notifying the destinations of the requested communication session. The invitations can comprise SIP INVITE messages.