Navigation DesignDeploymentManageTroubleshoot Design Select a topic from the list below. Central TopographyIntersite Dialling OverviewMulti-site (Inter-site) DeploymentPre-Staging the BE4000Prerequisites and design considerationsPSTN ConnectivityRemote UsersSingle-Site DeploymentSIP Trunk ConnectivityTransfer an inbound caller to an external PSTN number via AAWireless LAN Network Requirements