A fan for a cross flow fan assembly, including a plurality of elongate fan blades supported in an axial cylindrical pattern about a rotational axis by disk shape fan blade mounting members located adjacent ends of the blades. The conference control unit responds to a request message from a requesting subscriber unit to effect coupling of a conference-set of subscriber units in a conference calling configuration. In response to the request, the operation panel information transmitted from the device is acquired by the remote controller 1 and the editing of the operation panel information is performed. The pump jet further includes an exhaust bypass movable between normal and bypassed positions. The rotor has a rotational shaft, supported by the bearings, extending into the frameworks.