Communication terminal apparatus having a relaying function

A document processing terminal apparatus including a display and inputting means wherein said apparatus is capable of transmitting document information through a transmission line to a remote place, comprising:

• means in said apparatus for storing a destination file of each of a plurality of communication terminal apparatuses, said destination file including address information and charge information regarding charge between any two of said plurality of communication terminal apparatuses;
• transmission condition setting means for setting a transmission mode of said apparatus, said transmission mode including a relay mode;
• designating means for designating a destination communication terminal apparatus to which said document information is to be transmitted;
• relay control file forming means for forming a relay control file which determines if one or more of said plurality of communication terminal apparatus should act as relay stations and an order of transmitting said document information through said one or more relay stations in order to minimize the charge for transmitting said document information to said destination communication terminal apparatus based on the designation of said destination communication terminal apparatus by said designating means and said destination file;
• and
• transmitting means for transmitting document information;
• whereby, when said relay mode is set by said transmission condition setting means, said transmitting means transmits said document information to a destination communication control apparatus designated by said designating means in accordance with said relay control file.