Alcatel Lucent

Alcatel-lucent USA Inc.

Sound View Innovations, LLC

Shiang Yueng Feng

Seshagiri Rao Madhavapeddy

Pardeep Kohli

Ghassan Naim

Jianming Xu

Charles Marvin Berteau

Systems and techniques for providing call server failure protection involve assigning a set of media gateways to each of three or more call servers. Each call server has primary control of the corresponding assigned set of media gateways. A second call server is designated as having secondary control of a first media gateway assigned to a first of the call servers. A third call server is designated as having secondary control of a second media gateway assigned to the first call server. Secondary control is activated in response to a failure of the first call server.

Clustering call servers to provide protection against call server failure

Geographical redundancy and an efficient switchover process to redundant equipment () is achieved by separating active main equipment () and standby redundant equipment in different geographical locations so that failures can be avoided in the event of a natural disaster or other event that affects an entire building or region. In addition, partial switchover can be performed for components or functions that become inoperative to corresponding redundant components in the standby equipment. To provide further redundancy and prevent unneeded switchovers, status or heartbeat messages are transmitted between the active main equipment and standby redundant equipment over two different networks.

Method and system for providing availability and reliability for a telecommunication network entity

Growing community of inventors

Colleyville, TX, United States of America

Shiang Yueng Feng