CONTROL SYSTEM FOR TELEPHONE SET

PURPOSE:To simplify an operation for reading an information card and to exactly inform the use state of a telephone set by constituting a card reader of an insertion type, and informing the use state of the telephone set by a display means. CONSTITUTION:A card reader 10 is constituted of an insertion type for reading the recording information by inserting an information card 11a from an insertion port, and while the information card 11a is being inserted, a utilization control of a telephone set 20 is executed by a processing means (CPU 29), and also, a use state of the telephone set 20 is informed by a display means (display lamp 12). That is, when the information card is inserted into the card reader 10, the recording information is read. While the information card 11a is being inserted into the card reader 10, the utilization control of the telephone set 20 is executed by the processing means (CPU 29), and the use state of the telephone set 20 is known by, for instance, lighting of the display means (display lamp 12). In such a way, the operation for reading the information card 11a is simplified, and the use state of the telephone set 20 can be informed exactly.