CPU 1 of a facsimile device, when detects a transfer command from a calling
side, stores "box No.", "identification No." and "Telephone number of transfer
destination" of the transfer command in RAM 3, judges the effectiveness
of "box No.", that is, adequacy of the specification method. When the specification
method of the box No. of the transfer command is wrong (S2: No), or when
there is no memory box accompanied with the box No. (S10: No), or when no
image data is registered in the relevant memory box (S9: No), or when "identification
No." of the transfer command is wrong (S11: No), the operation manual and
the image data for registered information guide of the bulletin board box are transmitted
to the calling side (S3, S6).