Method and system for fail-safe call survival
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United States of America Patent
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Apr 29, 2014
Grant Date -
Dec 22, 2011
app pub date -
Jun 17, 2011
filing date -
Jun 18, 2010
priority date (Note) -
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Abstract
The present invention provides a system and method for fail-safe call survival by detecting failure of an active call serving component and switching the service over to a standby component. The system and method will prevent an existing call, whether established or to be established, from being dropped due to a single point of failure within a Voice over Internet Protocol system. The continuation of the call is based on the failed component as opposed to relying on communication endpoints to re-initiate or re-route the failed call. Call recovery is initiated independent from the call path of a call. The detection of a condition or need for call recovery and the determination to initiate call recovery procedures are made without involving endpoints or intermediate points of the call. The availability and sanity of all components are continuously monitored and are tailored specifically for the duties of each component.
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