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. 05, 2008
Filed:
Sep. 02, 2004
Andrew M. Moeck, Huntington Beach, CA (US);
Wendell D. Brown, Las Vegas, NV (US);
Andrew M. Moeck, Huntington Beach, CA (US);
Wendell D. Brown, Las Vegas, NV (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
A service is provided through an apparatus operative under Internet Protocol (IP) as part of the Internet to handle packet switched voice traffic according to Session Initiation Protocol (SIP) to control incoming packet switched control traffic by fielding SIP control traffic and substituting control signals that can traverse a firewall and handle Network Access Traversal (NAT) over an Internet Protocol (IP) network. To this end, a client behind a firewall initiates an outbound multimedia stream via a conventional voice path according to the Realtime Transport Protocol (RTP) to a SIP gateway, which in turn routes voice traffic via the Internet to the client using an XML interface to bypass the SIP-designated ports. The interface bridges the firewall and is supported by a server on the Internet that handles conventional SIP UDP interface traffic.