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Clustering call servers to provide protection against call server failure

  • US 20070109960A1
  • Filed: 11/15/2005
  • Published: 05/17/2007
  • Est. Priority Date: 11/15/2005
  • Status: Active Grant
First Claim
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1. A method for providing call server failure protection, the method comprising:

  • assigning a set of media gateways to each of at least three call servers, each call server having primary control of the corresponding assigned set of media gateways;

    designating a second call server as having secondary control of a first media gateway from the set of media gateways assigned to a first of the call servers;

    designating a third call server as having secondary control of a second media gateway from the set of media gateways assigned to the first call server; and

    activating secondary control in response to a failure of the first call server.

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