Abstract: In one embodiment, the present invention is a method and apparatus for testing backup sites in a Voice over Internet Protocol network. In one embodiment, a method for testing a backup site in a communications network includes simulating, in the network, a failed customer call and outputting an indicator to indicate whether the failed customer call was successfully re-routed from a primary site to the backup site. The testing of the backup site occurs in a manner that minimizes impact to the routing of customer calls destined for the primary site.