A communication device is configured to switch from a normal mode of operation to an inconspicuous mode of operation in which a reduced set of information is presented on a home screen of a display of the device in comparison to a set of information presented on the home screen in the normal mode of operation. The copolymers are comprised of about 50. Particularly, the more spare area rates are given to the inner circumferential portion and outer circumferential portion, and the less spare area rates are given to the center portion which is relatively stable portion, thereby minimizing the defect occurring rate to decrease the number of defective discs. The at least one attribute of the incoming contact is transmitted to a second device. The systems are modular so that various constructs and configurations can be created and customized to a patient. The present invention is a process for producing an edible oil, wherein when the edible oil is expressed from an oil-containing raw material, a diacylglycerol-containing oil or fat is added to the oil-containing raw material so that the diacylglycerol content in the oil or fat obtained after the oil expression is 4% by weight or more.