A method for determining an optimal access network by an apparatus is described. The LCD module comprises a back plate, a light guiding plate provided on the back plate, an upper frame provided on the light guiding plate in contact with an edge of the light guiding plate, a liquid crystal display panel provided on the upper frame, and a silica gel pad disposed between the upper frame and the liquid crystal display panel. Each hole has a lateral wall flaring outwardly in a downstream direction from a circular mouth at the lower wall to an elongate mouth at the upper wall. The application server computer uses a high level protocol to pass the XML document to a back office server which has access to a business’ enterprise resource planning database. In addition, the method includes synchronizing the call forwarding destinations for the mobile station and the telephonic device in response to a change to at least one of the registration state, the first call forwarding destination, and the second call forwarding destination.