JPH1056533A - Facsimile interface device - Google Patents

Abstract

(57) [Problem] To provide a facsimile interface device which is inexpensive and has no limitation on the number of transfer addresses in a local area network. SOLUTION: A transfer destination in a local area network can be designated by using a subaddress signal of a transmission procedure signal, and the facsimile interface device has only a function of transferring received image information. Therefore, it is not necessary to set a dial-in number, and it is possible to reduce processing related to data transfer to the local area network performed by the facsimile interface device.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a facsimile interface device for transmitting a facsimile document to a terminal device connected to a local area network.

[0002]

2. Description of the Related Art In general, in order to receive a facsimile document from a partner terminal connected to a GSTN in a local area network, for example, a group 3 facsimile modem is provided as a server device of the local area network, and a group 3 facsimile modem is provided. A facsimile server device for executing a three facsimile communication application is provided, and the facsimile server device receives facsimile image information.

Also, facsimile image information received by the facsimile server device is recorded and output from a printer device connected to the local area network, or a printer device connected to the facsimile server device, or a predetermined local area network. The address is transferred to the terminal device via the local area network.

The destination of the received facsimile image information on the local area network is not limited to a fixed address. For example, a dial-in number is used as a called number and the address is set to an address corresponding to the dial-in number. You can also.

[0005]

However, in such a conventional apparatus, it is necessary to provide a specific facsimile server apparatus independently, so that there has been a problem that the apparatus cost is increased. Also, in order for any terminal device connected to the local area network to be able to receive facsimile image information, it is necessary to set dial-in numbers by the number of the terminal devices, which increases the line cost. Had also occurred.

The present invention has been made in view of such circumstances, and has as its object to provide a facsimile interface device which is inexpensive and has no limitation on the number of transfer addresses in a local area network.

[0007]

SUMMARY OF THE INVENTION The present invention relates to a local area network interface means for connecting to a local area network and transmitting data through the local area network, and a predetermined group 3 facsimile communication connected to a public network. And facsimile interface means for connecting a group 3 facsimile apparatus and performing predetermined group 3 facsimile communication. When an incoming call is detected from the network interface means, a receiving operation related to the incoming call detection is performed. In addition, when a sub address is notified from a partner terminal in a predetermined group 3 facsimile transmission procedure, an address of the local area network corresponding to the sub address is set, and the local area network is set. While the received image information is transferred to the terminal device connected to the local area network at the set address through the interface unit, the sub-address is not notified from the partner terminal. A call is made to a facsimile machine, and the received image information is transmitted to the group 3 facsimile machine via the facsimile interface means.

[0008] Also, local area network interface means for connecting to a local area network and transmitting data via the local area network, and network interface means for connecting to a public network and performing predetermined group 3 facsimile communication. A facsimile interface means for connecting a group 3 facsimile apparatus and performing a predetermined group 3 facsimile communication. When the sub-address is notified from the partner terminal in the transmission procedure, the address of the local area network corresponding to the sub-address is set, and the local area network is set in parallel with the reception operation. While performing the local area network transfer operation of transferring the received image information to the terminal device connected to the local area network at the set address via the work interface means, when the sub address is not notified from the partner terminal, In parallel with the reception operation, a facsimile transfer operation of calling the group 3 facsimile apparatus by the facsimile interface means and transmitting the received image information to the group 3 facsimile apparatus via the facsimile interface means is performed. Things.

Further, local area network interface means for connecting to a local area network and transmitting data via the local area network, and network interface means for connecting to a public network and performing predetermined group 3 facsimile communication. A facsimile interface means for connecting a group 3 facsimile apparatus and performing a predetermined group 3 facsimile communication. When a sub address is notified from the partner terminal in the transmission procedure, an address of the local area network corresponding to the sub address is set, and the local area network interface is set. While the received image information is transferred to the terminal device connected to the local area network at the set address via the step, if the sub-address is not notified from the partner terminal, a predetermined specific address is set. The received image information is transferred to a terminal device connected to the local area network at the specific address via the local area network interface means.

[0010] Also, local area network interface means for connecting to a local area network and transmitting data via the local area network, and network interface means for connecting to a public network and performing predetermined group 3 facsimile communication. A facsimile interface means for connecting a group 3 facsimile apparatus and performing a predetermined group 3 facsimile communication. When a sub address is notified from the partner terminal in the transmission procedure, an address of the local area network corresponding to the sub address is set, and the local area network interface is set. While the received image information is transferred to the terminal device connected to the local area network at the set address via the step, if the sub-address is not notified from the partner terminal, the received image information is stored and held. It was done.

[0011]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
An embodiment of the present invention will be described in detail.

FIG. 1 shows a local area network system according to an embodiment of the present invention.

In FIG. 1, a local area network LAN is connected to a plurality of data terminal devices PC1 to PCn and a facsimile interface device FI. Therefore, the data terminal devices PC1 to PCn and the facsimile interface device F
Data transmission to and from I is performed via a local area network LAN. The data terminal device PC1
~ PCn includes this local area network LAN
A server device for integrating and controlling the operation of the server is included.

The facsimile interface device FI accommodates a GSTN (general switching network) line and is provided with a group 3 facsimile device FG.

FIG. 2 shows a configuration example of the facsimile interface device FI.

In FIG. 1, a control unit 1 performs various control processes such as a control process of each unit of the facsimile interface device FI and a facsimile transmission control procedure process. Stores a control processing program to be executed, and various data required when executing the processing program, and constitutes a work area of the control unit 1.
The parameter memory 3 is for storing various information unique to the facsimile interface device FI.

The clock circuit 4 is for outputting current date and time information, and the image storage device 5 is for storing a large number of image information in a coded and compressed state. Numeral 6 is for encoding and compressing an image signal and decoding the encoded and compressed image information into the original image signal.

The group 3 facsimile modem 7 is for realizing a group 3 facsimile modem function. The group 3 facsimile modem 7 has a low-speed modem function (V.21 modem) for exchanging transmission procedure signals and mainly exchanges image information. High-speed modem function (V.17 modem, V.17
34 modem, V.34. 29 modem, V.29. 27ter modem etc.).

The network control device 8 is for connecting the facsimile interface device FI to the GSTN and has an automatic transmission / reception function.

The local area network interface circuit 9 is for connecting the facsimile interface device FI to the local area network LAN.
0 is for executing a predetermined data transmission procedure process performed via the local area network LAN.

The group 3 facsimile interface device 11 is for connecting the group 3 facsimile device FG and performing a predetermined line control operation (including a network simulation function). A group 3 facsimile modem 13 generates a call signal for performing a call operation to the facsimile apparatus FG. The group 3 facsimile modem 13 exchanges a transmission procedure signal and a message signal with the group 3 facsimile apparatus FG. It is. The group 3 facsimile modem 13 is for realizing the modem function of the group 3 facsimile, and for transmitting and receiving a transmission procedure signal, a low speed modem function (V.21 modem) and mainly for exchanging image information. High-speed modem function (V.1
7 modem, V.7. 34 modem, V.34. 29 modem, V.29. 27
ter modem etc.).

The control unit 1, the system memory 2,
Parameter memory 3, clock circuit 4, image storage device 5, encoding / decoding unit 6, group 3 facsimile modems 7, 1
3, a network controller 8, a group 3 facsimile interface device 11, and a call signal generator 12 are connected to an internal bus 14. Data exchange between these elements is mainly performed through the internal bus 14. Has been done through.

Data exchange between the network controller 8 and the group 3 facsimile modem 7 and data exchange between the group 3 facsimile interface device 11 and the group 3 facsimile modem 13 are performed directly. I have.

With the above configuration, when a call is made from any of the group 3 facsimile apparatuses connected to the GSTN, the facsimile interface apparatus FI executes a predetermined transmission procedure in response to an incoming call and receives image information. I do.

At this time, if a sub-address signal is received from the partner terminal as a transmission procedure signal, the sub-address signal is transmitted to the data terminal devices PC1 to PCn of the address of the local area network LAN corresponding to the sub-address signal. Transfer image information.

If no subaddress signal is received from the partner terminal, a call is made to the group 3 facsimile apparatus FG, and the received image information is received by the group 3 facsimile apparatus FG.

As described above, according to the present embodiment, the transfer destination in the local area network LAN can be designated by using the sub-address signal of the transmission procedure signal, and the facsimile interface device FI simply receives the data. It is only necessary to provide the function of transferring the image information, so that setting of the dial-in number is unnecessary, and the facsimile interface device FI
Can reduce the processing related to data transfer to the local area network LAN.

Here, the relationship between the sub address and the address of the local area network LAN is stored in the parameter memory 3 in advance.

FIG. 3 shows an example of the operation of the facsimile interface device FI when the network control device 8 detects an incoming call from the GSTN.

When an incoming call is detected, an incoming call is answered (step 101), and predetermined transmission procedure signals CED, NSF, DIS
Is transmitted to the partner terminal (process 102). Then
When a predetermined command signal is received from the partner terminal (step 10
3) It is checked whether or not the received command signal includes a sub-address signal (decision 104).

If the received command signal includes a sub-address signal and the result of determination 104 is YES, an address of the local area network LAN corresponding to the content of the received sub-address signal is obtained (step 105). ), A local area network transfer process for transferring the image information to be received thereafter is started for the address (process 106).

If the received command signal does not include a sub-address signal and the result of determination 104 is NO, the image information received thereafter is
A group 3 facsimile transmission process for transmitting to the facsimile apparatus FG is started (process 107).

After starting the image information transfer process, the modem training procedure is executed to determine the modem speed to be used at that time (process 108), and the image information receiving operation is performed.

That is, the image information received from the partner terminal is stored in the buffer memory set in the system memory 2 (step 109). When the reception of the image information for one page is completed, a predetermined message post-procedure is performed. Execute (Process 1
10). Then, it is checked whether or not there is a notification that there is a subsequent received page (determination 111). When the result of the determination 111 is YES, the process returns to step 109 to receive image information of the subsequent page.

If the result of the determination 111 is NO, the line is restored by the network controller 8 (step 11).
2) End this operation.

As described above, the facsimile interface device FI stores the received image information in the buffer memory and stores the image information stored in the buffer memory in the data terminal device PC of the local area network LAN.
Since the processing of transferring the received image information from the reception of the image information to the completion of the transfer of the received image information can be shortened, since the processing of transferring the received image information from the first to the PCn or the group 3 facsimile apparatus FG is performed in parallel.

FIG. 4 shows an example of the group 3 facsimile transmission process started in the process 107.

First, the group 3 facsimile apparatus F is operated by the group 3 facsimile interface apparatus 11.
G is called (process 201), and after executing a predetermined pre-transmission procedure (process 202), the image information stored in the buffer memory is transmitted (process 203).

Each time transmission of image information for one page is completed,
A predetermined message post-procedure is executed (process 204), and it is checked whether or not there is a subsequent transmission page (decision 205). Send. In addition, the transmission operation of all pages is completed, and the result of determination 205 is NO.
Then, the connection with the group 3 facsimile apparatus FG is restored by the group 3 facsimile interface apparatus 11 (step 206).

FIG. 5 shows an example of the local area network transfer process started in the process 106.

In this process, data stored in the buffer memory is sequentially transferred to a designated local area network address (process 210), and this operation is repeatedly performed until the buffer memory becomes empty. (Process 211).

In this case, the data terminal devices PC1 to PC1
FIG. 6 shows an example of a schematic process of PCn.

When data is received via the local area network LAN (the result of decision 301 is YES),
The source address of the data is checked to see if it is for the facsimile interface device FI (decision 302). If the result of determination 302 is NO, another predetermined receiving process (process 303) corresponding to the received content is executed.

When the result of the determination 302 is YES, the received data is stored (step 304), and it is checked whether the data reception for one document has been completed (decision 30).
5). If the result of decision 305 is NO, decision 3
Returning to 01, the subsequent data is received.

If the result of the determination 305 is YES, the fact that the facsimile document has been received is notified to the user using the terminal (process 306), and this process ends.

In the above-described embodiment, the facsimile interface device FI transfers the received image information to the group 3 facsimile device FG when the sub-address signal is not received from the partner terminal.
If the group 3 facsimile apparatus FG is in a state in which image information cannot be received for some reason and the received image information is stored in the buffer memory, the buffer memory overflows and a proper receiving operation cannot be performed. There is.

To eliminate such inconvenience, it is preferable to store the received image information in the image storage device 5 as an image information file.

FIG. 7 shows an example of the operation executed by the facsimile interface device FI when the network control device 8 detects an incoming call from the GSTN.

Facsimile interface device FI
When an incoming call is detected, first, the incoming call is answered (process 40).
1) Send predetermined transmission procedure signals CED, NSF, DIS to the partner terminal (process 402). Next, when a predetermined command signal is received from the partner terminal (process 403),
It is determined whether the received command signal includes a sub-address signal (decision 404).

When the received command signal includes a sub-address signal and the result of determination 404 is YES, an address of the local area network LAN corresponding to the content of the received sub-address signal is obtained (step 405). ), A local area network transfer process for transferring the image information to be received thereafter is started for the address (process 406).

After starting the image information transfer process in this way, the modem training procedure is executed to determine the modem speed to be used at that time (process 407), and the image information receiving operation is performed.

That is, the image information received from the partner terminal is stored in the image storage device 5 as an image information file (step 408), and when the reception of the image information for one page is completed,
A predetermined post-message procedure is executed (process 409). Then, it is checked whether or not it is notified that there is a subsequent received page (decision 410), and the result of the decision 410 is YE
When S is reached, the process returns to step 408 to receive the image information of the subsequent page.

If the result of determination 410 is NO, the network is restored by the network controller 8 (processing 41).
1), this operation ends.

If the subcommand is not included in the received command signal and the result of determination 404 is NO, the group 3 facsimile interface apparatus 11 calls the group 3 facsimile apparatus FG (step 412). ), Group 3 facsimile machine F
It is checked whether G responds to the incoming call (decision 413). If the result of determination 413 is YES, a group 3 facsimile transmission process for transmitting image information to be received thereafter to the group 3 facsimile apparatus FG is started (process 414), and the process proceeds to process 407.

When the result of the determination 413 is NO, a predetermined local area network address of the specific terminal is set as the transfer destination address,
In this state, the processing shifts to processing 406 to start the local area network transfer processing.

FIG. 8 shows an example of the group 3 facsimile transmission process started in the process 414.

First, after executing a predetermined pre-transmission procedure (process 501), the image information for one page stored in the image storage device 5 is transmitted (process 502). Every time the image information transmission for one page is completed, a predetermined post-message procedure is executed (process 503), and it is checked whether or not there is a subsequent transmission page (decision 504), and the result of the decision 504 is YES. If so, the process returns to step 502 to transmit the image information of the subsequent page. When the transmission operation of all pages is completed and the result of determination 504 is NO, the connection with the group 3 facsimile apparatus FG is restored by the group 3 facsimile interface apparatus 11 (process 505).

FIG. 9 shows an example of the local area network transfer process started in the process 406.

In this process, the data of the image information file of the image storage device 5 is sequentially transferred to the designated address of the local area network (process 510), and this operation ends. (Step 511).

FIG. 10 shows an example of processing when an incoming call is detected by the facsimile interface device FI according to another embodiment of the present invention.

Facsimile interface device FI
When an incoming call is detected, first, the incoming call is answered (process 60).
1) Sends predetermined transmission procedure signals CED, NSF, DIS to the partner terminal (process 602). Next, when a predetermined command signal is received from the partner terminal (process 603),
It is checked whether or not the received command signal includes a sub-address signal (decision 604).

When the received command signal includes a sub-address signal and the result of determination 604 is YES, an address of the local area network LAN corresponding to the content of the received sub-address signal is obtained (step 605). ), A local area network transfer process for transferring the image information to be received thereafter is started for the address (process 606).

After starting the image information transfer process in this way, the modem training procedure is executed to determine the modem speed to be used at that time (process 607), and the image information receiving operation is performed.

That is, the image information received from the partner terminal is stored in the buffer memory set in the system memory 2 (step 608). When the reception of the image information for one page is completed, a predetermined post-message procedure is executed. (Process 60
9). Then, it is checked whether or not it is notified that there is a subsequent received page (determination 610). When the result of determination 610 is YES, the process returns to step 608 to receive image information of the subsequent page. Also, the result of decision 610 is N
When it becomes O, the line is restored by the network control device 8 (process 611), and this operation ends.

When the received command signal does not include the sub-address signal and the result of determination 604 is NO, the group 3 facsimile interface apparatus 11 calls the group 3 facsimile apparatus FG (step 612). ), Group 3 facsimile machine F
It is checked whether G responds to the incoming call (decision 613). If the result of determination 613 is YES, a group 3 facsimile transmission process for transmitting image information to be received thereafter to the group 3 facsimile apparatus FG is started (process 614), and the process proceeds to process 607.

When the result of the judgment 613 is NO, a modem training procedure is executed to determine a modem speed to be used at that time (process 615), and an image information receiving operation is performed.

That is, the image information received from the partner terminal is stored in the image storage device 5 as an image information file (process 616), and when the reception of the image information for one page is completed,
A predetermined post-message procedure is executed (process 617). Then, it is checked whether or not it is notified that there is a subsequent received page (judgment 618), and the result of the judgment 618 is YE
When S is reached, the process returns to step 616 to receive the image information of the subsequent page.

When the result of the judgment 618 is NO, the process shifts to a process 611, where the network controller 8 restores the line and terminates this operation.

FIG. 11 shows an example of the group 3 facsimile transmission process started in the process 614.

First, after executing a predetermined pre-transmission procedure (process 701), the image information stored in the buffer memory is transmitted (process 702). Every time the image information transmission for one page is completed, a predetermined post-message procedure is executed (process 703), and it is checked whether there is a subsequent transmission page (determination 704), and the result of the determination 704 is YES. If so, the process returns to step 702 to transmit the image information of the subsequent page. Also, the transmission operation of all pages is completed,
If the result of determination 704 is NO, the connection with the group 3 facsimile apparatus FG is restored by the group 3 facsimile interface apparatus 11 (processing 705).

In this case, when the sub address signal is not received from the partner terminal and the group 3 facsimile apparatus FG does not answer the incoming call, the received image information is stored in the image storage apparatus 5. The stored image information is stored in the data terminal device PC1 of the local area network LAN.
~ PCn, can be appropriately processed.

That is, the data terminal devices PC1 to PCn
Requests the facsimile interface device FI to confirm storage at an appropriate timing. Accordingly, if there is an image information file stored in the image storage device 5 at that time, the facsimile interface device FI notifies the data terminal devices PC1 to PCn of the other party that the received image information is stored. To notify. If the image information file is not stored in the image storage device 5, the fact that the received image information is not stored is indicated to the other data terminal device PC.
1 to PCn.

When the data terminal devices PC1 to PCn are notified that the received image information is stored from the facsimile interface device FI, the data terminal devices PC1 to PCn send the stored image information to the group 3 facsimile device to the facsimile interface device FI. Request to forward to FG or
Alternatively, a request can be made for the terminal to receive it.

Facsimile interface device FI
When the data terminal devices PC1 to PCn request to transfer the stored image information to the group 3 facsimile device FG, the received image information stored in the image storage device 5 is transferred to the group 3 facsimile device FG. The operation of transmitting to is performed.

When a request is received from the data terminal devices PC1 to PCn to receive the stored image information at the own terminal, the requesting data terminal devices PC1 to PCn are issued.
, An operation of transmitting the received image information stored in the image storage device 5 is performed.

FIG. 12 shows a processing example executed by the facsimile interface device FI in this case.

Facsimile interface device FI
Monitors the receipt of a storage confirmation message, a transfer request message to the group 3 facsimile apparatus FG, or a reception request message via the local area network LAN (decisions 801, 802, 8).
03 NO loop).

When the storage confirmation message is received and the result of determination 801 is YES, it is checked whether received image information is stored in image storage device 5 (determination 804), and the result of determination 804 is YES. When it comes
An accumulation notification message indicating that the received image information is accumulated is transmitted to the data terminal devices PC1 to PCn at that time (process 805).

When the result of determination 804 is NO, a storage absence notification message indicating that the received image information is not stored is transmitted to the data terminal device PC1 at that time.
To PCn (process 806).

If the result of determination 802 is YES when a transfer request message to group 3 facsimile apparatus FG is received, call is made to group 3 facsimile apparatus FG by group 3 facsimile apparatus FG (processing 807), it is checked whether the group 3 facsimile machine FG answers the incoming call (decision 808). If the result of determination 808 is YES, the received image information stored in the image storage
A group 3 facsimile transmission process for transmitting to the facsimile apparatus FG is started (process 809). When the result of the judgment 808 is NO, the processing 809 is not executed.

When the reception request message is received and the result of determination 803 is YES, the addresses of the data terminal devices PC1 to PCn at that time are obtained (process 810), and the address A local area network transfer process for transferring the received image information stored in the storage device 5 is started (process 811).

As described above, in the present embodiment, the data terminal devices PC1 to PC1 of the local area network LAN are used.
Cn can appropriately process the image information stored in the facsimile interface device FI.
Very convenient.

[0083]

As described above, according to the present invention,
Using the subaddress signal of the transmission procedure signal, it is possible to specify the transfer destination in the local area network, and the facsimile interface device need only have a function of transferring the received image information. It is not necessary to set the in-number, and it is possible to reduce the processing related to data transfer to the local area network performed by the facsimile interface device.

Further, since the terminal device of the local area network can appropriately process the image information stored in the facsimile interface device, it is very convenient.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a local area network system according to one embodiment of the present invention.

FIG. 2 is a block diagram showing a configuration example of a facsimile interface device FI.

FIG. 3 is a flowchart showing an example of the operation of the facsimile interface device when the network control device detects an incoming call from the GSTN.

FIG. 4 is a flowchart illustrating an example of a group 3 facsimile transmission process.

FIG. 5 is a flowchart illustrating an example of a local area network transfer process.

FIG. 6 is a flowchart illustrating an example of a schematic process of the data terminal device.

FIG. 7 is a flowchart showing another example of the operation of the facsimile interface device when the network control device detects an incoming call from the GSTN.

FIG. 8 is a flowchart showing another example of the group 3 facsimile transmission process.

FIG. 9 is a flowchart showing another example of the local area network transfer processing.

FIG. 10 is a flowchart illustrating an example of processing when an incoming call is detected by the facsimile interface device according to another embodiment of the present invention.

FIG. 11 is a flowchart showing still another example of the group 3 facsimile transmission process.

FIG. 12 is a flowchart illustrating a processing example executed by the facsimile interface device.

[Explanation of symbols]

 FI Facsimile Interface Device FG Group 3 Facsimile Device LAN Local Area Network PC1-PCn Data Terminal Device

Claims (4)

[Claims] 1. A local area network interface means for connecting to a local area network and transmitting data via the local area network, and a network interface means for connecting to a public network and performing a predetermined group 3 facsimile communication. Facsimile interface means for connecting a group 3 facsimile apparatus to perform a predetermined group 3 facsimile communication. When a subaddress is notified from the partner terminal in the transmission procedure, an address of the local area network corresponding to the subaddress is set, and the local area network interface means is set. While the received image information is transferred to the terminal device connected to the local area network at the set address via the terminal, if the sub address is not notified from the partner terminal, the facsimile interface means sends the image information to the group 3 facsimile device. A facsimile interface device for calling and transmitting received image information to the group 3 facsimile device via the facsimile interface means. 2. A local area network interface means for connecting to a local area network and transmitting data via the local area network, and a network interface means for connecting to a public network and performing a predetermined group 3 facsimile communication. Facsimile interface means for connecting a group 3 facsimile apparatus to perform a predetermined group 3 facsimile communication. When the sub address is notified from the partner terminal in the transmission procedure, the address of the local area network corresponding to the sub address is set, and the local area network is set in parallel with the reception operation. While performing the local area network transfer operation of transferring the received image information to the terminal device connected to the local area network at the set address via the network interface means, if the sub address is not notified from the partner terminal, In parallel with the receiving operation, a facsimile transfer operation of calling the group 3 facsimile apparatus by the facsimile interface means and transmitting the received image information to the group 3 facsimile apparatus via the facsimile interface means. Facsimile interface device. 3. A local area network interface means for connecting to a local area network and transmitting data via the local area network, and a network interface means for connecting to a public network and performing a predetermined group 3 facsimile communication. Facsimile interface means for connecting a group 3 facsimile apparatus to perform a predetermined group 3 facsimile communication. When a subaddress is notified from the partner terminal in the transmission procedure, an address of the local area network corresponding to the subaddress is set, and the local area network interface means is set. While transferring the received image information to the terminal device connected to the local area network at the set address via the above, if the sub-address is not notified from the partner terminal, set a predetermined specific address, A facsimile interface device for transferring received image information to a terminal device connected to the local area network at a specific address via the local area network interface means. 4. A local area network interface means for connecting to a local area network and transmitting data via the local area network, and a network interface means for connecting to a public network and performing a predetermined group 3 facsimile communication. Facsimile interface means for connecting a group 3 facsimile apparatus to perform a predetermined group 3 facsimile communication. When a subaddress is notified from the partner terminal in the transmission procedure, an address of the local area network corresponding to the subaddress is set, and the local area network interface means is set. The received image information is transferred to a terminal device connected to the local area network at the set address via the terminal, and if the sub-address is not notified from the partner terminal, the received image information is stored and held. Facsimile interface device.