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. 09, 2026
Filed:
Jan. 02, 2024
Oracle International Corporation, Redwood Shores, CA (US);
ORACLE INTERNATIONAL CORPORATION, Redwood Shores, CA (US);
Abstract
A method for preserving network bandwidth during NAT device unavailability or after a NAT device reboot includes receiving, by a session initiation protocol (SIP) proxy, messages from SIP endpoints, determining, by the SIP proxy, that at least some of the SIP endpoints are located behind a NAT device. The method further includes determining, by the SIP proxy, that the NAT device is potentially unavailable or has potentially rebooted, testing, by the SIP proxy, reachability of at least some of the SIP endpoints located behind the NAT device and determining that the at least some of the SIP endpoints are unreachable, classifying, by the SIP proxy, all of the SIP endpoints located behind the NAT device as unreachable, and rejecting, by the SIP proxy, SIP messages directed towards the SIP endpoints located behind the NAT device.