An UMA network controller is dedicated for an UMA mobile network comprising a CS core network with an MSC and a MGW, a PS core network with a SGSN. For this purpose, a flange portion is provided in the mounting ring toward an outer side in a diametrical direction, and an end face portion is covered by attaching an end face seal portion constituted by a rubber-like elastic body brought into close contact with the end face portion of the housing to the flange portion. The thematic information aggregations may be synchronized across user devices and user statuses may be preserved. The saw support section comprises a handle engaging member for receiving and supporting a top handle of the saw and saw plates against which the saw leans.