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:
Feb. 22, 2011
Filed:
Jan. 09, 2007
Weiqiang Zhou, Shenzhen, CN;
Jing Wang, Shenzhen, CN;
Weiqiang Zhou, Shenzhen, CN;
Jing Wang, Shenzhen, CN;
Huawei Technologies Co., Ltd., Shenzhen, CN;
Abstract
A method and a system for implementing backup based on session border controllers, including: a terminal device registers to a first soft switch via a first session border controller; the terminal device detects whether a failure concerning the first session border controller occurs. If a failure occurs, the terminal device registers to the first soft switch via a second session border controller; the first or the second session border controller detects whether a failure concerning the first soft switch occurs. If a failure occurs, the terminal device registers to the second soft switch. In addition, the invention further provides a corresponding system. With the present invention, media stream can pass through the NAT and firewall on the basis of adding session border controllers in the NGN network, and by implementing dual homing of the session border controller, paralyzing of the soft switches can be prevented, or a disaster tolerance mechanism for emergency communication can be provided, when burst disaster appears to the system.