JPH05327981A - Data communication device - Google Patents

Abstract

PURPOSE:To simplify the formation of a relay route by storing a call incoming station informed from a relay requesting station in the relay information storage part of a relay station by the relay station. CONSTITUTION:A facsimile device as the relay requesting station with the communication control part 17 as an informing part informs the desired call incoming station of the relay station. In this case, the data of the call incoming station (a station number, etc., for example) are inputted through an operation display part 18, converted into a data format suitable for facsimile transmission by a system control part 2 and informed of the relay station. In the meantime, the facsimile device as the relay station informed the call incoming station with the system control part 20 as a storage control part stores the call incoming station informed from the relay requesting station in the relay information storage part 22. As a result, the relay route can be registered at the relay station by the operation of the relay requesting station.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data communication device such as a facsimile device having a relay function, and more particularly to a data communication device which facilitates setting of a relay route.

[0002]

2. Description of the Related Art Conventionally, a data communication device such as a facsimile device or an electronic mail has been widely used. However, this data communication device, for example, a facsimile device, relays a facsimile message transmitted from a certain station (relay requesting station) by a predetermined relay. Some have a so-called relay broadcast function in which a station sequentially relays and delivers to the terminal station (terminating station).

As a conventional facsimile apparatus of this type, for example, Japanese Patent Application Laid-Open Nos. 2-82839 and 2-9.
There are those disclosed in Japanese Patent No. 6457, Japanese Patent Laid-Open No. 125543/1990, and the like. The facsimile device as a relay station is provided with a relay information storage unit. By previously storing the destination relay station or destination station in this relay information storage unit, the relay route can be set and registered. ..

[0004]

However, in such a conventional data communication apparatus, even if an attempt is made to create, for example, a multi-stage relay route at the relay requesting station, which is an information transmitting station, the relay requesting station can relay the relay station. Since it is not possible to set and register the relay route, that is, the destination station of the delivery destination in the device that becomes the relay device, it is necessary to set and register the relay route for each device that becomes the relay station. It was

Therefore, the invention according to claim 1 provides a data communication apparatus capable of facilitating the creation of a relay route by storing the destination station notified from the relay requesting station in its own relay information storage section. It is intended to be provided.
Next, in the conventional data communication device, even if the relay route once created is changed or deleted, the setting of the receiving station stored in the relay station must be changed as described above. Therefore, it was not possible to respond promptly when changing the relay route.

Therefore, the invention according to claim 2 provides a data communication apparatus capable of facilitating the change of the relay route by the relay station changing its stored contents by the receiving station notified from the relay requesting station. The purpose is to
Next, in the conventional data communication device, when a relay route such as a multi-stage relay is created, the creator transmits the relay route to other users by means such as drawing. When the relay requesting station takes the initiative in setting up and registering the relay route in the relay station according to the invention described in 1 or 2, the user of the relay requesting station, that is, the creator, naturally wants to confirm the newly set and registered relay route. Conceivable.

Therefore, according to the invention of claim 3, the relay station notified of the receiving station from the relay requesting station and registered and set the relay route returns the route report to the relay requesting station. It is an object of the present invention to provide a data communication device capable of notifying a user on the relay requesting station side of information that helps understanding of a relay route such as multiple stages. Next, when it becomes possible to set and register the relay route in the relay station under the initiative of the relay requesting station according to the invention described in claim 1 or 2, it is a feeling that the user of the relay station has arbitrarily set the route. Inevitably, it is also impossible to confirm the set route.

Therefore, the invention according to claim 4 is to notify the user of the relay station of which the destination station has been notified by the relay requesting station and the setting and registration of the relay route has been made, to thereby notify the fact. It is an object of the present invention to provide a data communication device that allows a user of a relay station to recognize the setting registration of a relay route under the initiative of.

[0009]

The invention according to claim 1 is
In order to achieve the above object, a relay requesting station which is an information transmitting station, a relay station which relays information transmitted from the relay requesting station, and a transmission from the relay requesting station via at least one of the relay stations. In a relay broadcast network provided with a destination station that finally receives the stored information, and a data communication device including a relay information storage unit that stores the destination station including a relay station in a subsequent stage as the relay station. In the relay requesting station, a notification unit for notifying the relay station of a desired destination station, and a storage control unit for storing the destination station notified by the relay requesting station in the relay information storage unit And are provided.

In order to achieve the above-mentioned object, the invention according to claim 2 is, in the data communication apparatus according to claim 1, notified from the relay requesting station of the contents stored in the relay information storage unit in the relay station. It is also characterized in that it has a change control unit for changing it depending on the receiving station. Further, in order to achieve the above object, the invention according to claim 3 is the data communication device according to claim 1 or 2, wherein in the relay station notified of the destination station from the relay requesting station, the relay information storage unit is provided. And a return unit for returning the created report to the relay requesting station.

In order to achieve the above-mentioned object, the invention according to claim 4 is the data communication apparatus according to claim 1 or 2, wherein the relay station notified from the relay requesting station is a relay station, The present invention is characterized by including a report creating unit that creates a report related to the stored contents of the information storage unit, and a notifying unit that notifies the user of the relay station of the created report.

[0012]

In the invention having the above-mentioned structure, in the relay requesting station, the notifying unit notifies the relaying station of a desired destination station, and the receiving station notified from the relaying request station is transmitted to the relay station. Therefore, the storage control unit stores it in the relay information storage unit.
Further, in the invention according to claim 2 having the above configuration, the change control unit in the relay station changes the storage content of the relay information storage unit by the destination station notified from the relay requesting station.

According to the invention of claim 3 having the above-mentioned structure, in the relay station notified of the receiving station from the relay requesting station, the report creating section creates a report regarding the contents stored in the relay information storage section. , The created report is returned to the relay requesting station by the return section. Further, in the invention of claim 4 having the above configuration, in the relay station notified of the receiving station from the relay requesting station, a report concerning the contents stored in the relay information storage section is created by the report creating section, and the report is created. The report is sent to the user of the relay station by the notification unit.

[0014]

EXAMPLES The present invention will be described below based on examples.
FIG. 1 is a block diagram showing a facsimile apparatus as a data communication apparatus according to an embodiment of the invention described in any one of claims 1 to 4. First, the configuration will be described. In the figure, a scanner 11 is a document reading device and reads image information of a predetermined resolution from a document image. Plotter 12
Is a recording device as a printing unit, and records image information on recording paper. The encoding / decoding unit 13 encodes image information to be transmitted and also decodes the received image information. The image memory 14 is for accumulating the received files as an accumulating unit, and the accumulated received files are the plotter 1
In step 2, the image information is printed out. Further, in the case of storage transmission, the image information of the transmission original read by the scanner 11 is temporarily stored in the image memory 14, and the stored transmission file is transmitted to the receiving station. Note that the image memory 14 also stores job file data converted into a specified format.

The network control unit 15 controls a predetermined call-out operation and a call-in operation by capturing a line, transmitting a selection signal which is a destination telephone number, detecting an incoming call, and the like. The modem 16 modulates and demodulates image information and transmits it, and also transmits various procedure signals in the transmission control procedure. Communication control unit 17
Controls the network control unit 15 and the modem 16 so that the CCI
For example, G3 according to TT (International Telegraph and Telephone Advisory Committee) recommendation
Facsimile transmission is realized by a predetermined transmission control procedure based on the standard.

The operation display section 18 is provided with a display device for displaying operation guidance and the like, and various operation keys for causing the facsimile apparatus to execute predetermined transmission / reception processing in accordance with the guidance. The registration / transmission management information storage unit 19 is a RAM area for storing registration information and job files. For example, the calling number and the identification information (for example, RTI / CSI) of the other party who frequently communicates with each other are registered. To do. The system control unit 20 includes a CPU, ROM, RA
A microcomputer configured of M or the like for controlling the above-described units to realize a predetermined operation of the facsimile apparatus.
The system bus 21 is a signal line for data exchanged between the above units.

The relay information storage unit 22 stores a receiving station including a relay station in the latter stage as a relay station. This receiving station registers its destination number (name, department name, etc.) together with its station number. To be done. The setting registration of the called station is performed through the operation display unit 18, and at that time, the group number for designating the called station can be stored in association with the group number.

The report creating section 23 grasps the relay route based on the called stations set and registered in the relay information storage section 22 and creates a report of drawing the relay route or a report listing the called stations. To do. In the embodiment having the above structure, the facsimile apparatus as the relay requesting station notifies the relay station of the desired destination station by using the communication control section 17 as a notification section. In this case, the data of the receiving station (for example, the station number) is input through the operation display unit 18, converted by the system control unit 20 into a data type suitable for facsimile transmission, and notified to the relay station. On the other hand, in the facsimile apparatus as the relay station notified of the called station, the system control unit 20 stores the called station notified from the relay requesting station in the relay information storage unit 22 as a storage control unit. Here, the number of receiving stations notified from the relay requesting station to the relay station may be one or plural,
Further, by adding a group number to the receiving station, it is possible to collectively set and register the relay routes divided into groups.

Next, in the embodiment as claimed in claim 2, the facsimile device as a relay station uses the system control unit 20 as a change control unit and the relay information storage unit 22 by the destination station notified from the relay requesting station. Change the contents already stored in. That is, the change control is realized by adding an identifier such as addition or deletion to the receiving station notified from the relay requesting station to the relay station.

Next, in the embodiment described in claim 3, in the relay station notified of the receiving station from the relay requesting station, the report creating section 23 changes the stored content of the relay information storage section 22, that is, new or changed. Regardless, create a report on relay routes. The report created by the report creation unit 23 is image-processed as image information by the system control unit 20 and then returned to the relay requesting station by using the communication control unit 17 as a return unit. The storage contents of the relay information storage unit 22 may be notified from the relay station to the relay requesting station at any time, not limited to the notification of the called station.

Next, in the embodiment described in claim 4, in the relay station notified of the receiving station from the relay requesting station, the report created by the report creating section 23 is displayed in the operation display section 18, for example. LCD panel or plotter 12
Is used as a notification unit to notify the user of the relay station itself. Next, the operation will be described.

FIG. 2 is a diagram showing a configuration example of a relay broadcast network. FIG. 2 (a) shows a relay route in which relay stations are connected at a ratio of 1: 1 and FIG. 1: Indicates a relay route that is connected by many. The operation of the facsimile apparatus shown in FIG. 1 will be described below through the flow of the relay route creating procedure shown in FIG.

In the relay broadcast network shown in FIG. 2A, the relay requesting station A is used as an information transmitting station, and the information transmitted from the relay requesting station A is relayed by the relay stations B and C. The information transmitted from the relay requesting station A via the relay stations B and C is finally received by the receiving stations DF. Here, it is assumed that the user of the relay requesting station A knows in advance the station numbers of the respective facsimile machines BF that form the relay route. In addition, it is assumed that all the relay stations forming the relay route have a relay route creating function, that is, a report creating unit 23.

(1) First, the relay requesting station A receives the destination station number (DF) from the last relay station C in the relay route to be created.
To notify. (2) The relay station C stores the receiving station numbers D to F notified from the relay requesting station A in the relay information storage unit 22 of its own device. At this time, the one-touch dial numbers and abbreviated numbers corresponding to the called station numbers D to F are searched from the registration / transmission management information storage unit 19. Here, if the same called station numbers D to F have already been registered, no new registration processing is performed. However, for unregistered called station numbers D to F, the available one-touch dial numbers or abbreviated numbers are associated. Make a new registration and secure the registered one-touch or shortened number. The incoming call station numbers D to F stored in the relay information storage unit 22 may be the station numbers themselves, or may be the registered one-touch or shortened numbers.

(3) Next, the relay station C reports the relay route returned to the relay requesting station A to the report creating section 2
The registration number information such as one-touch and shortening secured in the registration / transmission management information storage unit 19 in (2) above is also sent to the relay requesting station A when the report is sent back to the relay requesting station A in addition to being created by 3. Notice. Here, the report creation unit 23 of the relay station C creates a report by using the registered one-touch or shortening of the secured receiving station, the number of the group, etc., and relays the report by the communication control unit 17. Send to requesting station A.

(4) Relay request station A that received the report
Stores the registration number information notified from the relay station C in the relay information storage unit 22 and the registration / transmission management information storage unit 19 of its own machine, and stores the registration number and the station number of the relay station C in the next relay. Notify station B. (5) The relay station B registers the notified station number of the relay station C as the broadcast station number in its own relay information storage unit 22 and registration / transmission management information storage unit 19. Then, the registration numbers of the called station numbers D to F registered in the relay station C are also registered in one of the vacant groups in the registration / transmission information management storage unit 19.

(6) Next, the relay station B returns the relay route creation report to the relay requesting station A. Here, the report creating unit 23 of the relay station B creates a report by using the number of the group in which the information of the secured receiving station is secured, and the communication control unit 17 causes the relay requesting station A to send the report. To send to. At this time, the relay station B also notifies the group number data when the called stations (the called stations D to F including the relay station C) are registered as a group in the registration / transmission information management storage unit 19.

The report sent from the relay station B to the relay requesting station A shows the whole image of the relay route shown in FIG. 2A. When the relay requesting station A receives the report, the report is relayed. The creation of the relay route centering on the request station A is completed. The relay route creating operation will be described below with reference to the communication flow of FIG. FIG. 3 is a diagram showing a communication flow at the time of creating a relay route. FIG. 3A is a notification flow of a called station from the relay requesting station A to the relay station C, and FIG. A report return flow to A, a figure (c) shows a called station notification flow from the relay requesting station A to the relay station B, and a figure (d) shows a report returning flow from the relay station BC to the relay requesting station A.

First, the station numbers of the receiving stations D to F are input from the operation display section 18 of the relay requesting station A. Then, similarly, when the station number of the relay station C closest to the called stations DF is input from the operation display unit 18, a call is made to the relay station C. As shown in FIG. 3A, when the relay station C receives the calling tone CNG generated by the call, the relay station C sends the non-standard function identification signal NSF (Non-Stan) to the relay requesting station A.
dard Facilities) is returned.

Upon receiving the non-standard function identification signal NSF, the relay requesting station A sends the relay station C a non-standard function setting signal NSS.
(Non-Standard Facilities Set-up) is transmitted. At this time, the relay requesting station A incorporates the called station number data (D to F) input from the operation display unit 18 into the NSS frame and notifies the relay station C of the data. The relay station C stores the called station number analyzed from the NSS frame in the relay information storage unit 22. At this time, if a group number is designated for the called station number analyzed from the NSS frame, this group number is also stored in the relay information storage unit 22 in association with the called station number.

The called station number is registered and managed by the registration / transmission management information storage unit 19 for each group number. As a result, at the time of making a call, that is, at the time of relay broadcasting, only the designation of the group number is performed, and the call is sequentially made to all the destination stations managed by the group. However, if there is no group designation, the called number is registered as a one-touch or abbreviated number and this registration number is secured. As a result, at the time of relay broadcasting, one-touch or abbreviated numbers are used to sequentially make calls to all called stations.

When the called station number is stored in the relay information storage unit 22 as described above, the relay station C sends a message confirmation signal MCF (Message Confirmation) to the relay requesting station A, and the relay requesting station A issues a disconnection command. Signal DCN (Discon
(nect), the line is disconnected, and the called station notification flow from the relay requesting station A to the relay station C ends. Next, as shown in FIG. 3B, the relay station C makes a call to the relay requesting station A to return the relay route creation report. Here, the report creating unit 23 of the relay station C uses the called station number and the registration / transmission management information storage unit 19 of the relay information storage unit 22.
A report is created using the registration number of the called station secured in step 1, that is, a one-touch or shortened number, and is sent to the relay requesting station A.

For this reason, the relay station C receives the non-standard function identification signal NSF replied from the relay requesting station A to the calling tone CNG, and the non-standard function setting signal NSS.
And training check TCF (Training Check)
Is sent. At this time, in the NSS code transmitted by the relay station C, registration number data such as one-touch or shortened registration of the receiving station is incorporated.

When the reception request confirmation signal CFR is sent from the relay requesting station A which receives the non-standard function setting signal NSS, the relay station C uses the report of the relay route created by the report creating section 23 as the image information PIX. Send to relay request station A. When the transmission of the report information PIX ends, the relay station C transmits a procedure end signal EOP (End of Procedures).

When the procedure end signal EOP is transmitted, the relay station C waits for the message confirmation signal MCF from the relay requesting station A, transmits the disconnection command signal DCN, and returns the report from the relay station C to the relay requesting station A. To finish. On the other hand, the relay requesting station A receiving the report sends the registration number in which the called station number analyzed from the NSS code of the relay station C is registered,
It is stored in the registration / transmission management information storage unit 19 and the relay information storage unit 22 of its own machine, and after the reception of the report / the line is disconnected, the operation display unit 18 displays that it is waiting for an input instruction to accept another relay station number. To do. In the present embodiment, FIG.
As shown in FIG. 3, since the relay station B other than the relay station C exists, the user inputs the station number of the relay station B from the operation display unit 18.

That is, as shown in FIG. 3C, the relay requesting station A which receives the input of the relay station number B from the operation display section 18
Sends a calling tone CNG to call relay station B. At the same time, the relay information storage unit 22 is searched for a group corresponding to the station number of the relay station B.
If the corresponding group exists, the number of the group is given, and if it does not exist, it means that the group is new.
When the non-standard function identification signal NSF from the relay station B is received in the SS frame, the non-standard function identification signal NS is received.
Send F. Of course, this non-standard function identification signal NS
In F, the station number and registration number of the relay station C (one-touch, shortened registration number of the receiving stations D to F registered in the relay station C)
Is also incorporated at the same time.

The communication control unit 17 of the relay station B receives the received NS
The S code is analyzed, and when the group is designated, the designated group is assigned, and when the new designation is assigned, the vacant group is assigned with the relay station C station number and the receiving station DF registration numbers obtained from the NSS. Registered as the relay station number and the destination of the incoming call transfer, respectively. When the processing is completed, the relay station B returns the reception preparation confirmation signal CFR to the relay requesting station A. Reception preparation confirmation signal CF
Upon receiving R, the relay requesting station A sends a disconnection command signal DCN to disconnect the line and terminates the called station notification flow from the relay requesting station A to the relay station B.

Next, as shown in FIG. 3D, the relay station B makes a call to the relay request station A to return the relay route preparation report. Here, the report creating unit 23 of the relay station B has the incoming call number and the registration / registration number in the relay information storage unit 22.
Create a report using the group number in which the information of the called station secured in the transmission management information storage unit 19 is registered,
It is sent to the relay request station A.

For this reason, the relay station B receives the non-standard function identification signal NSF replied from the relay requesting station A to the calling tone CNG, and the non-standard function setting signal NSS.
And training check TCF (Training Check)
Is sent. At this time, the NSS code transmitted by the relay station B includes the number data of the group in which the destination station is registered.

When the reception request confirmation signal CFR is sent from the relay requesting station A which has received the non-standard function setting signal NSS, the relay station B uses the report of the relay route created by the report creating section 23 as the image information PIX. Send to relay request station A. When the transmission of the report information PIX is completed, the relay station B transmits the procedure end signal EOP. When the procedure end signal EOP is transmitted, the relay station B waits for the message confirmation signal MCF from the relay requesting station A, and then the disconnection command signal DCN.
And the report return flow from the relay station C to the relay requesting station A is completed.

The group number incorporated in the non-standard function setting signal NSS of the relay station B is stored in a predetermined storage section of the relay requesting station A, and the report received as the image information PIX is printed out by the plotter 12. The relay route shown in FIG. 2A can be visually confirmed. Also,
When the relay requesting station A makes a call to the relay station B by designating a group at the time of relaying, the multistage relay shown in FIG. 2A becomes possible.

Note that only when the relay route between the relay station B and the relay station C is created, that is, when the relay route creation process for the relay station B is performed, the relay request station A determines the corresponding group for the relay station B as the relay information storage unit 22. Search more. Incoming station DF
When the relay route between the relay station C and the relay station C is created, that is, when the relay route is created for the relay station C, the above-described search process is not necessary. In other words, when the relay station number is not included in the NSS code, it is not necessary to search the relay information storage unit 22.

The route creation processing in the case where the relay routes correspond to the relay stations B and C in a ratio of 1: 1 has been described above with reference to FIG. 2A. As shown in FIG. To relay station B
In the case of creating a relay route of 1: many between the relay station and D, the relay route can be created in the same procedure as above by grouping into two ranges. That is, the processing is performed by dividing the parts that are not connected at 1: 1 between the relay stations.

As described above, in the embodiment described in claim 1, since the setting at the time of creating the relay route can be performed by the operation from the relay requesting station A, the users of the relay stations B and C do not bother. .. Further, in the embodiment according to claim 2, the process of adding the called station and the relay station can be performed according to the above-mentioned procedure, and further, by assigning the bit for relay route deletion in the non-standard function setting signal NSS. ,
The relay station number or the receiving station number instructed by the relay requesting station A can be deleted through the relay information storage unit 22 and the registration / transmission management information storage unit 19, so that the relay route can be promptly changed. The order of designation is the same as the procedure for creating a relay route.

Next, in the embodiment of claim 3,
Add or newly registered group, one-touch,
Since the abbreviated number and the registered contents are created as a relay report by the report creating unit 23 and the created relay route can be confirmed as a report at the relay requesting station A, it is possible to easily understand the multi-stage relay route. It should be noted that, at the time of one-touch, shortening registration, or group registration, it is possible to add to the report even if a new addition or registration cannot be made because all are already registered.

Next, in the embodiment according to claim 4,
As a result of receiving the relay route creation processing from the relay requesting station A, if the one-touch, shortening, or group registration processing is performed, the communication control unit 17 at the relay station displays that fact on the LCD of the operation display unit 18. Or report creation department 2
Since the report created by No. 3 can be printed out by the plotter 12 of the own machine, the user of the relay station can recognize the process of creating the relay route led by the relay requesting station A.

In the above embodiments, the facsimile machine is exemplified, but the present invention can be applied to other data communication apparatuses such as electronic mail and video conference systems.

[0048]

As described above, according to the data communication apparatus of the present invention, the relay requesting station notifies the relay station of the desired destination station from the notifying section, and the relay requesting station Since the receiving station notified by the relay station is stored in the relay information storage section in the relay station, the setting at the time of creating the relay route can be performed by the operation of the relay requesting station, and the relay station user's hand It does not bother you.

Further, according to the data communication apparatus of the present invention, the change control unit in the relay station changes the stored contents of the relay information storage unit by the destination station notified from the relay requesting station. It is possible to quickly respond to changes in the relay route. Further, according to the data communication apparatus of the third aspect of the present invention, in the relay station notified of the destination station from the relay requesting station, the report creation unit creates a report regarding the storage contents of the relay information storage unit, Since the created report is returned to the relay requesting station by the return section, the created relay route can be confirmed as a report by the relay requesting station, and the relay route in multiple stages can be easily understood.

Further, according to the data communication apparatus of the present invention, in the relay station notified of the destination station from the relay requesting station, the report creating section issues a report regarding the contents stored in the relay information storage section. Since the report is created and the created report is reported to the user of the relay station itself by the notification unit, the user of the relay station can recognize the process of creating the relay route led by the relay requesting station.

[Brief description of drawings]

FIG. 1 is a block configuration diagram showing a facsimile apparatus as a data communication apparatus according to an embodiment of the invention described in any one of claims 1 to 4.

FIG. 2 is a diagram showing a configuration example of a relay broadcast network. FIG. 2A shows a relay route in which relay stations are connected at a ratio of 1: 1, and FIG. The relay route connected by many is shown.

FIG. 3 is a diagram showing a communication flow when creating a relay route. FIG. 3A is a flow of notifying a called station from the relay requesting station A to the relay station C, and FIG. 3B is a relay request from the relay station C. Flow of returning report to station A, (c) of the figure is flow of notification of called station from relay requesting station A to relay station B, (d) is of relay station B
7 shows a report return flow from C to relay requesting station A.

[Explanation of symbols]

 12 Plotter (Notification Unit) 17 Communication Control Unit (Notification Unit, Returning Unit) 18 Operation Display Unit (Notification Unit) 19 Registration / Transmission Management Information Storage Unit 20 System Control Unit (Storage Control Unit, Change Control Unit) 22 Relay Information Storage Department 23 Report preparation department

Claims (4)

[Claims] 1. A relay requesting station which is an information transmitting station, a relay station which relays information transmitted from the relay requesting station, and information transmitted from the relay requesting station through at least one of the relay stations. In a relay broadcast network provided with a destination station for finally receiving, a data communication device having a relay information storage unit for storing the destination station including a relay station in a subsequent stage as the relay station, A notification unit for notifying the relay station of a desired destination station in the relay requesting station; and a storage control unit for storing the destination station notified by the relay requesting station in the relay information storage unit in the relay station. A data communication device characterized by being provided. 2. The data communication device according to claim 1, further comprising a change control unit in the relay station for changing the storage content of the relay information storage unit according to the receiving station notified from the relay requesting station. Data communication device. 3. The data communication device according to claim 1, further comprising: a report creation unit that creates a report regarding the contents stored in the relay information storage unit in the relay station notified of the destination station by the relay requesting station. A data communication device comprising: a return unit that returns the created report to the relay requesting station. 4. The data communication apparatus according to claim 1, wherein the relay requesting station notifies the receiving station of the receiving station, and a report creating section for creating a report about the contents stored in the relay information storage section. A data communication device, comprising: a notification unit that notifies the user of the relay station of the created report.