form suitable for communication control by the facsimile machine the resulting data is then set the communication management data is searched according to the telephone number of the receiving end analyzed in s402 s403 the communication management data in this embodiment comprises the telephone number of a receiving end the final access time and a redial inhibiting flag which is set when facsimile communications cannot be achieved with the receiving end because of erroneous dialing or other reasons fig5 illustrates an example of the configuration of the communication management data in this embodiment the communication number 501 and the file number 502 are provided for differentiating between the communications and between the types of image data stored in the image memory respectively the telephone number of the receiving end 503 which is data located on the communication protocol tsi csi frame of itu t t 30 is indicated on the communication results report or the like the calling number 504 is an item for storing the number which has been actually dialed in this embodiment the calling number 104 is employed to retrieve the telephone number of the receiving end the calling number 504 is effective only when transmission control calling is performed the transmission start time 505 indicates the time when the communication is started and the final access time 506 represents the time when the communication is ended including when the communication is ended because of errors redialing interval determining control in this embodiment is performed utilizing the final access time 506 the communication results 507 indicates whether transmission has.