Patent ID: 8218176

Claim:
A communication device capable of transmitting subject data to be transmitted, comprising: a facsimile number list storage configured to store a facsimile number list containing abbreviated numbers and respectively corresponding facsimile numbers; a destination designating unit configured to designate a desired destination by designating a desired abbreviated number stored in the facsimile number list storage; a first operating unit configured to apply a predetermined calculation to a facsimile number corresponding to the desired abbreviated number to obtain a first operated value; a designated transmission storage configured to store the desired abbreviated number and the first operated value; a transmission instruction unit configured to instruct the communication device to start transmitting the subject data; a second operating unit configured to apply the predetermined calculation to a facsimile number corresponding to the desired abbreviated number stored in the designated transmission storage to obtain a second operated value after the transmission instruction unit instructs to start transmitting the subject data; a judging unit configured to judge whether the first operated value coincides with the second operated value; and a controlling unit configured to automatically control the communication device to abort transmission of the subject data when the judging unit judges that the first operated value does not coincide with the second operated value.