Abstract: The invention comprises a method and apparatus for determining an expected impact of a disaster on a network. In particular, one embodiment of the method includes modeling the network as a plurality of geographical regions associated with respective pluralities of network elements and network element interconnectivities, generating a disaster model associated with the disaster by adjusting a disaster framework using a disaster parameter, generating a disaster analysis model using the network model and the disaster model, wherein the disaster analysis model includes a disaster probability parameter and a disaster impact parameter, and determining the expected impact of the disaster on at least a portion of the network using the disaster analysis model.

Abstract: The invention includes a method and apparatus for establishing a call from a caller to a callee. A method includes monitoring call establishment signaling associated with a request by a caller to establish a call from a first terminal of the caller to a first terminal of the callee, determining a location of each of at least one condition in the network, and routing the call establishment signaling to at least one of a second terminal of the caller and a second terminal of the callee based on the location of each of the at least one condition in the network. A method includes monitoring call establishment signaling associated with a request to establish a call from the caller to the callee, and routing the call establishment request signaling from one of a plurality of terminals of the caller toward one of a plurality of terminals of the callee.