Abstract: A user makes a call to a center station (30) using a radio terminal (1) requesting communication. An authentication station (20) authenticates the call by checking a calling number that is attached to the call against the calling number that corresponds to this radio terminal and is managed at the authentication station. The authentication station then connects the call between the radio terminal and the center station so that they communicate with each other via a radio network (10). The user uses the radio terminal to fill in predetermined information on an input form sent from the center station. The input form on which the entries have been filled in is sent from the radio terminal to the center station, and contract procedures, contract annulment, or model change procedures with a communication provider are performed. If required, the radio terminal registers the calling number sent from the center station.

Abstract: A calendar display apparatus comprising a calendar display panel device indicating the 1st to 31st days constituting at least one month which are arranged in a plurality of rows and columns in conformity to the serial order of the seven days of the week, wherein the calendar display panel device is supplied according to a referential clock pulse signal with at least "day" data and "month" data. A column data producing device is provided for specifying that column of the calendar on which there falls a particular day of the week in the month indicated by the "month" data. A column-specifying device receives column data delivered from the column data producing device for designating that column of the calendar in which there falls a particular day of the week. A "month"-shifting instruction generating device shifts month data forward or backward, and a data-shifting device varies the "month" data and also changes the column data supplied to the column-specifying device from the column data producing device.

Abstract: An electronic display device has numerals 1 to 31 for days of one month arranged in plural columns and rows, and numerals for displaying time such as "hours", "minutes" and "seconds" and including a plurality of segments. At least a part of the numerals for data display are disposed in the spaces defined by the segments for the numerals for time display. The device is useful for devices with restricted display space.