TELEPHONE EXCHANGE

PURPOSE:To execute a holding response even when peculiar data are forgot by providing a memory to store the peculiar data to correspond to a holding line wire and a memory to generate a voice guidance signal to a holding requir ing and executing the voice guidance of the peculiar data with operating a requiring dial. CONSTITUTION:After the control of a self-holding is executed by a microproces sor 17, the requiring of a holding number is executed. When a telephone set to be used by a person is in an idle condition, the processing of the next requir ing dial is waited. Here, when the operation of the requiring dial is executed and a self-telephone set is held, the processing to select the holding number of the self-telephone set is executed. Since the voice guidance that the holding is an (n)-number is outputted to a receiver, the person to deal with the telephone set can know the holding number. The person to deal with the telephone set and to receive the guidance of this number executes the releasing of the self- holding by dialing the number and the line wire can be re-complemented.