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:
Mar. 16, 2021
Filed:
Feb. 12, 2019
Saudi Arabian Oil Company, Dhahran, SA;
Saudi Arabian Oil Company, Dhahran, SA;
Abstract
Systems and methods include a method for securing an Internet protocol (IP) Multimedia Subsystem (IMS)-based voice over IP (VoIP) network with multiple virtual private networks (VPNs). A call sent by a first user endpoint (UE) to a second UE is received by a SBC. The SBC provides security for an IMS-based VoIP network and controls traffic between a first VPN connecting IMS core servers, a second VPN connecting IP phones, and a third VPN connecting non-IP-phone devices. The call originates from either of the second VPN connecting the IP phones or from the third VPN connecting the non-IP-phone devices. A signaling for the call is encrypted and routed by the SBC to the second UE. A media flow for the call is encrypted and routed by the SBC through the third VPN before routing the call to the second UE.