Appeal No. 96-3238 Application No. 08/137,590 data transmitting means for transmitting said data stored in said data storing means to said remote management apparatus; transmission time interval storing means for storing a transmission time interval; and terminal device control means for requesting a line connection to said remote management apparatus in said transmission time interval stored in said transmission time interval storing means, and for, when said line connection is not attained, repeatedly requesting said line connection every predetermined first time period in said transmission time interval, said predetermined first time period being shorter than said transmission time interval, said remote management apparatus comprising: data receiving means for receiving data transmitted from said terminal devices; management table storing means for storing a management table including at least identification names of terminal devices which are previously set to transmit data in said transmission time interval and corresponding identifiers for said terminal devices having said identification names for identifying whether data has been sent from said terminal devices or not; - 3 -Page: Previous 1 2 3 4 5 6 7 8 9 NextLast modified: November 3, 2007