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:
Jul. 22, 2008
Filed:
Jun. 06, 2002
Kewen HU, Shenzhen, CN;
Ligang Wang, Shenzhen, CN;
Qing Zeng, Shenzhen, CN;
Yi Ji, Shenzhen, CN;
Haoliang Qin, Shenzhen, CN;
Jian Ying, Shenzhen, CN;
Wenjun Zhao, Shenzhen, CN;
Huailin Yuan, Shenzhen, CN;
Kewen Hu, Shenzhen, CN;
Ligang Wang, Shenzhen, CN;
Qing Zeng, Shenzhen, CN;
Yi Ji, Shenzhen, CN;
Haoliang Qin, Shenzhen, CN;
Jian Ying, Shenzhen, CN;
Wenjun Zhao, Shenzhen, CN;
Huailin Yuan, Shenzhen, CN;
Huawei Technologies Co., Ltd., Shenzhen, CN;
Abstract
The present invention provides an IP telephone gatekeeper system and an implementation method thereof, characterized in that two or more individual gatekeepers are connected each other, so as to forming a gatekeeper system that can be regarded as a single gatekeeper system by the controlled gateways, in which the gatekeepers can substitute and backup mutually. A plurality of computer systems are used to realized the cooperation of a plurality of gatekeepers, for breaking through the limit of capacity of individual gatekeeper group and improving the reliability of the whole system, so that backing-up and substituting mutually can be achieved.