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:
Oct. 23, 2012
Filed:
Mar. 16, 2006
John T. Manville, New Providence, NJ (US);
Sabet A. Elias, Freehold, NJ (US);
Philip Palevo, Jr., Holmdel, NJ (US);
Scott Ronald Shaw, Ossining, NY (US);
Andre R. John, Montclair, NJ (US);
John T. Manville, New Providence, NJ (US);
Sabet A. Elias, Freehold, NJ (US);
Philip Palevo, Jr., Holmdel, NJ (US);
Scott Ronald Shaw, Ossining, NY (US);
Andre R. John, Montclair, NJ (US);
Barclays Capital Inc., New York, NY (US);
Abstract
A Voice over Internet Protocol (VoIP) proxy server is described. The VoIP proxy server is placed in a DMZ of a company's secure internal communication network. The VoIP proxy server receives VoIP control messages and VoIP media streams and based on the MAC address and source IP address contained in the control message, pushes a policy change to the internal network's external firewall to open call control protocol ports and Real Time Protocol (RTP) ports only for packets from the source IP address. The VoIP proxy server manages the hiding of the company's internal network address and directs incoming VoIP packets to an IP-PBX connected to the company's internal network.