Methods, systems, and devices are described that provide for directing a voice or video call using least cost dialing. The still may have an impermeable nonporous membrane that may be extruded, molded, vacuum formed or sprayed-on. A scalar track squeeze magnitude indicator is derived from the estimated difference distribution so that the indicator to be transmitted depends on the frequency component. Also, a fine control of pressure is possible, the pressure can be appropriately distributed according to part of the pressed object, and mass production of accurate molding products is possible by controlling the pressing point of time.