JPS6390938A - Message communication system - Google Patents

Abstract

PURPOSE:To omit a retransmitting operation by a transmitting side, by storing temporarily a message in an accumulating device in an exchange equipment, thereafter, transmitting it, when there is a fault in a receiving terminal at the time of executing the communication between terminals. CONSTITUTION:When an immediate delivery is transmitted to a teletex 2-d from a teletex 2-a, the MHS host 3 executes a delivery to the teletex 2-d. In such a case, when the teletex 2-d causes a delivery failure due to some temporary cause (fault, busy, etc.), the delivery is executed to a terminal registered in advance as a substituted terminal. Howover, if the other terminal fails in all deliveries due to a service interruption, etc., the MHS host 3 processes its immediate delivery 5 as an automatic center custody and stores it automatically in a mail box 4. In such a case, this immediate delivery telegraphic message 5 in this mail box 4 is delivered, when the other terminal is reset, but even other terminal than a terminal designated therein can fetch it by designating its immediate delivery telegraphic message 5 and requesting to draw it out. This operation is executed by, for instance, a teletex 2-c.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a message communication system comprising a plurality of telematic terminals.

[Prior Art] Telematic terminals such as facsimile terminals and teletex terminals have been known.

When communicating between these terminals, if the other party's receiving terminal is busy or has some kind of malfunction, messages cannot be sent and the message must be sent again after the other party's terminal recovers. There wasn't.

[Purpose of the Invention] In view of the drawbacks of the prior art as described above, the present invention provides a message that can omit the retransmission operation on the sending side by temporarily storing the message in the storage device in the switching device in the event of some kind of failure. The purpose is to provide a communication system.

〔Example〕

Embodiments of the present invention are shown in FIGS. 1 to 15. FIG. 1 is an example of an e-mail system according to the present invention. 1 is the center machine of the message handling system (hereinafter referred to as M
H5), it is connected to a terminal device 2 connected via a local area network (LAN) or the like via a dedicated line SK or a high-speed DigiMole line DK.

Actual operation diagrams are shown in FIGS. 2 to 8, and the operation will be explained below. 2-a, 2-c, 2-d, 2-
f is Teletex terminal device (hereinafter Teletex L2-b)
.

2-e is a facsimile terminal device (hereinafter referred to as facsimile), and each of these terminal devices has an individual terminal number, and operations such as submission and distribution are based on this terminal number.

FIG. 2 shows conventional MH3 operation. First, Teletex 2-a, 2-c distributes a message to MH 31 in order to distribute the message to Teletex 2-d.

This input message (hereinafter referred to as a telegram) is stored in the mailbox 4 as a telegram addressed to the teletex 2-d from the MHS host computer (hereinafter referred to as MHS host) 3. Next, when the teletex 2-d requests the MHS host 3 to retrieve the message, the MHS host 3 first transfers the message stored in the mailbox 4 to the teletex 2-d.
-draw out against d.

FIG. 3 shows an example of the different terminal output operation of this embodiment. The heretical non-output operation is an operation in which a message in a mailbox is retrieved from a terminal other than the actual destination terminal of the message.

First, the teletex 2-a and facsimile 2-b input messages addressed to Mr. A in the teletex 2-d and facsimile 2-e. When submitting a message, the person submitting the message specifies the number of the terminal device to which the message is to be sent and the recipient of the message. This input message is stored in the mailbox 4 by the MHS host 3 in the same manner as in the operation shown in FIG. Here, teletex 2-d is 7 of this telegram.
A request is sent to the MHS host 3 to extract only -a from the teletex 2-f. Then, MHS host 3
Mailbox 4 sends message 7-a addressed to Teletex 2-d.
Let Teletex 2-f pull it out. At this time, the destination of the telegram 7-a does not change at all, only the teletext to be output has changed. Also, if the message sent to facsimile 2-e is facsimile data 7-b, teletex 2-d sends the message 7-b to facsimile 2-e to S host 3. MHS host 3 sends a withdrawal request to mailbox 4.
The message 7-b is then sent to the facsimile 2-e. Note that the withdrawal request may be output from the teletex 2-f.

Figure 4 shows the operation of sorting between the own terminal and different terminals. own terminal,
Different terminal sorting operation means that if both text (character code data) and image (image data) exist as a message addressed to an individual, the text will be retrieved from the teletex and the image from the facsimile with the - times retrieval request. This made it possible.

First, input messages 7-a (text) and 7-b (image) are sent from Teletex 2-a1 and facsimile 2-b to Mr. A of Teletex 2-d and facsimile 2-e, and Ml-1s host 3 The message is then stored in the mailbox 4 as a message addressed to Mr. A of Teletex 2-d. Next, when a request is made to Teletex 2-d or MHS host 3 to withdraw messages 7-a and 7-b addressed to Mr. A, MHS host 3 receives messages 7-a and 7-b from mailbox 4. of,
The text data 7-a is distributed to the teletex 2-d, and the image data 7-b is outputted to the facsimile 2-e.

FIG. 5 is an explanatory diagram of heretical non-output designation and different terminal distribution output operation. Heretical non-output designation and different terminal distribution output operations are those that, when text and images exist as telegrams addressed to a certain terminal, the text and images are distributed and output from different terminals.

First, when teletex 2-a1 facsimile 2-b sends a message to Mr. A of teletex 2-d and facsimile 2-e, MHS host 3
-d is stored in the mailbox 4 as a message addressed to Mr. A. Next, when Teletex 2-d issues a request to biHS host 3 to retrieve the message addressed to Mr. A from Teletex 2-f, MHS host 3 retrieves the message 7-a addressed to Mr. A from mailbox 4. , 7-b, the teletex data 7-a is outputted to the teletex 2-f, and the facsimile data 7-b is outputted to the facsimile 2-e. Here, the withdrawal request may be output from the teletex 2-f.

In addition, in order to perform the operations shown in FIGS. 4 and 5, the facsimile data is sent to the facsimile 2-e in a telegram requested to the MHS host 3 in advance using teletex 2-d and teletex 2-f. It is registered so that it can be output. Further, in this embodiment, there is only one facsimile machine for two teletex machines, but this number is of course not limited to this.

Next, send the outgoing data to the mailbox 4 in Figures 6 to 8.
In addition, we will show and explain the operation when directly specifying a terminal and performing distribution (hereinafter referred to as immediate distribution).

FIG. 6 shows the delivery procedure for immediate distribution and the center sorting and withdrawal procedure. Here, "center type" is a function that temporarily stores messages at the center machine in the event that there is some kind of failure on the receiving side during immediate delivery.

First, when Teletex 2-a sends immediate distribution to Teletex 2-d, MHS host 3 performs distribution to Teletex 2-d. Here teletex 2-d
When the delivery fails due to a temporary cause (failure, busy, etc.), the delivery is performed to a terminal registered in advance as a substitute terminal.

However, if all distributions fail due to a power outage or the like at the destination terminal, the MHS host 3 automatically stores the immediate distribution 5 in the mailbox 4 as an automatic center type. Here, this message 5 for immediate delivery in the mailbox 4 will be delivered when the other party's terminal returns, but even terminals other than those specified here can request withdrawal by specifying the message 5 for immediate delivery. It can be removed by doing this. This operation is performed by Teletex 2-c, for example. Furthermore, if a call completion notification request is attached, it is possible to issue a reception failure notification and discard the data in the event of a delivery failure, just like in conventional devices.

FIG. 7 shows the automatic withdrawal operation of the undeliverable message (center-like message at the time of immediate delivery) 5. In the operation shown in FIG. 6, if the undeliverable message 5 is not retrieved from another terminal, the receiving terminal 21 specified at the time of immediate delivery returns and performs some operation on the MHS host 3, and then After the response, it is automatically retrieved from the mailbox 4 and output to the teletex 2-d.

FIG. 8 shows the automatic withdrawal operation of undeliverable messages 5-a and 5-b of facsimile (image) data. While instant delivery 6 is being delivered from facsimile 2-b to facsimile 2-e, each facsimile 2 is sent from another facsimile to
When immediate delivery 5-a and 5-b are sent to facsimile machines 2-b and 2-e, they become like centers, and when communication between facsimiles 2-b and 2-e ends, MHS host 3 is unable to deliver their respective Messages 5-a and 5-b are sent to each facsimile 2.
-b, 2-e automatically withdraws.

In FIG. 9, an explanation will be given of the operation of extracting a message with a recitation number (hereinafter referred to as confidential mail) when heresy has not been output (see explanation in FIG. 3). First, Teletex 2-d is MHS host 3.
A request is made to send the message 8 to the facsimile machine 2-e. Then, the MHS host 3 extracts the message 8 from the mailbox 4 to the facsimile 2-e. Here, from Teletex 2-f (here, Teletex 2-f is used to simplify the explanation, but there is no restriction on the Teletex used), send confidential mail 9 to facsimile 2-e.
When a request is issued to MHS host 3 to retrieve M
The HS host 3 temporarily interrupts the output at the page break of the message 8 currently being output, and sends the confidential mail 9 to the facsimile 2-
Let it be drawn out against e. Furthermore, after the withdrawal of the confidential mail 9 is completed, the continuation of the message 8 that was being output previously is output again. Here, in order to realize the above-mentioned operation, only the confidential mail 9 is given priority. Furthermore, when there is a request to withdraw the same message from the same terminal, the MHS host 3 withdraws the message that was accepted first. or,
When a request to withdraw the confidential mail 9 is received while the facsimile 2-e is in the above-mentioned instant delivery operation, the confidential mail 9 is immediately withdrawn from the facsimile 2-e after the instant delivery operation is completed.

Next, control flowcharts of the MHS host 3 that realizes the above operations are shown in FIGS. 10 to 14.

FIG. 10 shows the procedure for storing data in the mailbox 4.

First, when data is input, control information such as destination, data type, input source, etc. (control document, hereinafter referred to as CD)
) is analyzed by step SIO to determine whether the CD is normal or abnormal.
ll, and if normal, a normal response control document (hereinafter referred to as RCD) is delivered to the input terminal (512), and a message is input to the mailbox (S13).
). On the other hand, if the CD is abnormal, the abnormality RCD is delivered to the input terminal and abnormal termination processing is performed (S14.5
15).

FIG. 11 shows processing operations during immediate distribution. S10~S1
2. S14. The operation at S15 is similar to that shown in FIG.

In step S21, the CD is distributed to the destination terminal when the CD is normal. At this time, if the destination terminal is unable to receive the message, the message is distributed to a pre-designated proxy terminal.

If the distribution is possible, the distribution is performed to the destination terminal or the proxy terminal, and if there is a request for notification of the end of the distribution, a notification of the end of the distribution is returned to the originating side and the process ends (823-5
25).

On the other hand, if both the destination terminal and the proxy terminal are unable to receive the data, it is determined in S26 whether there is a request for notification of the end of distribution. If there is a notification request, a notification of non-delivery is sent to the sender in S27, and the immediate delivery message is deleted. If there is no notification request, the message is placed in the mailbox in S28. That is, center sorting processing is performed.

FIG. 12 is a flowchart of a process for retrieving a message from a designated destination terminal in a mailbox.

When there is a withdrawal request, the withdrawal request CD is analyzed (SIO), Sll, S12. S13. The process in S14 is the same as that in FIG.

If it is determined that the CD is normal, the message in the mailbox is output to the destination terminal specified by the sender (S31).

If an abnormality such as a paper jam occurs in the printer during output, only the normally retrieved message is erased, the others are left, and abnormal termination processing is performed (S33). When the abnormality is recovered, the remaining messages are output based on a request or automatically.

On the other hand, if no abnormality has occurred, after the withdrawal is completed, it is checked whether there is a center-like message addressed to the terminal that requested the withdrawal (S35).

If there is no center type message, the operation ends.

If there is a center type message, the deposited message is outputted to the terminal from which the withdrawal request was made in S36.

If the delivery of the center type message fails here, the type of the message is analyzed using the CD of the received message, and the type of message (
If the type (text, image) and terminal type (teletex, facsimile) are different, a notification of inability is issued to the originating terminal and the message is deleted (S41). On the other hand, if there is an abnormality on the terminal side, the center-like message will be distributed again.

FIG. 13 is a control flowchart of a message output operation (heretical non-output operation) to a terminal different from the destination terminal of the message in the mailbox. The CD is analyzed in the same manner as in FIG. 12, and if it is normal, the heretic floor and output message are specified in S51 based on the heretic floor designation code and output message code included in the withdrawal request. If there is an error in the specification, a message indicating the error is output to the withdrawal request terminal in S53.

If the designation is normal, the normal message in the mailbox is withdrawn (355-558) or the center-type message is withdrawn (835-541). The withdrawal operation of the center type message is the same as that shown in FIG.

35 normal messages other than center type in the mailbox
5. Delete only messages that were output and successfully delivered from the mailbox. When the normal delivery is completed, the process proceeds to check whether there is a center-like message (S35).

Next, the operation when retrieving a confidential message from the heresy floor will be explained using FIG. 14.

The operations of S10 to S12 are as described above. In S61, the confidential message and the terminal to be output are specified based on the analysis result of the output request CD.

If the designated terminal is not busy (if it is free), the process proceeds to steps 354 and subsequent steps in FIG. 13, which check whether the message is a secessor-type message or something else.

If the designated terminal is busy, it is checked whether the designated terminal is currently delivering instant delivery (S63).

If immediate delivery is in progress, a confidential email is output after all immediate delivery messages have been output (S64).

At this time, if there is an abnormality in the delivery, an abnormal message is output to the terminal that made the confidential output request, and only the normally delivered message is deleted (S66).

On the other hand, if it is determined in S63 that immediate distribution is not in progress, when the distribution of the page currently being distributed is completed, the distribution will be interrupted at - 567), and a confidential email will be distributed (S6
8).

If there is an abnormality during delivery of the confidential mail, a message indicating that the abnormality has occurred is output to the terminal that output the confidential output request, and only the normally delivered message is deleted (S70).

Thereafter, the distribution operation interrupted in S71 is resumed.

FIG. 15 shows a control flowchart for the distribution of text data and image data explained in FIG. 4. FIG. 15 shows a process in which text data is output to the same terminal as the designated terminal of the message, and image data is output to a facsimile machine registered in the host 3 in pair with the same terminal.

In step SIO, the withdrawal request CD and the CD of the message specified by the request CD are analyzed.

In S81, it is checked whether the request designation terminal specified in the withdrawal request CD and the message designation terminal specified in the message CD match. If they match, the message is treated as text information and the text information is retrieved from S90 onwards.

If they do not match, the type of the message is analyzed at 382, and if it is image data, the image data is output to the facsimile registered in the host 3 in pair with the message designated terminal (S84).

On the other hand, in the case of text information, abnormality processing is performed.

After repeating the above process for all messages in this way,
Proceed to process the center-type message explained earlier.

Next, referring to FIG. 16, the operation of distributing and outputting text and images to a teletex terminal and a facsimile terminal different from the designated terminal of the message will be explained.

Analyze the request CD and message CD with SIO.

It is determined by 5IOI whether the message is text or image, and if it is text, the text information is outputted to the terminal specified by the requested CD in 5103. On the other hand, if it is an image, the image data is outputted in step 5102 to the facsimile machine registered as a pair with the terminal specified by the requested CD. This process is repeated for all messages.

With the above configuration, both text and images can be retrieved with a single retrieval request, and there is no need to specify text and images individually.

Figure 17 shows the Teletex CR when making a withdrawal request.
3 shows a display screen displayed on a T display screen.

As input information, the mailbox number, recipient name, and output type tube are specified as search conditions 17.

Also, input the selection number in document selection 18 as a selection condition,
Enter the terminal number as output terminal unspecified 19.

By specifying the output terminal in this way, it becomes possible to extract from both the own terminal and a different terminal.

As explained above, according to this embodiment, by temporarily storing undeliverable messages in the mailbox (keeping them at the center), the sending task can be reliably completed with only one sending, and the sending process can be completed at the other party's terminal. The waiting time for vacancies and the waiting time for failure recovery are now eliminated.

Furthermore, by providing a function that automatically retrieves messages held at the center when the designated terminal is recovered (or becomes free), the possibility of immediate delivery failure can be significantly reduced, and the time required for the message to be received by the recipient can be significantly reduced. Other benefits include time savings and a reduction in the load on mailbox memory resources.

In this embodiment, there is one message destination, but by changing the contents of the CD and CD analysis, it is possible to output one message to multiple destinations, and the message received at the center can also be sent to one message information. , it will be possible to withdraw from multiple devices.

Further, in this embodiment, the receiving side specifies and registers the proxy terminal, but if the sending terminal can also specify the secondary terminal, the number of proxy terminals will increase and the possibility of delivery in an emergency will increase. Also, in this case, automatic delivery is performed only when the designated terminal recovers, but by making automatic delivery possible when the designated terminal recovers, it may be possible to receive undeliverable messages in a shorter time.

[Effects of the Invention] As explained above, according to the present invention, it is possible to omit the retransmission operation on the transmitting side by temporarily storing the transmitted heavy text in the storage device in the switching device.

[Brief explanation of the drawing]

Fig. 1 is a block diagram of the system of this embodiment, Fig. 2 is a block diagram showing the conventional operation, Figs. 3 to 9 are block diagrams showing the operation of this embodiment, and Figs. 10 to 16. 17 is a control flowchart of the MHS host 3, and FIG. 17 is a diagram showing a display diagram when a withdrawal request is made. 1 is the center machine of the MHS system, 2-a. 2-c, 2-d, 2-f are teletex terminals,
Reference numeral 2-6.2-e indicates a facsimile terminal, 3 indicates a central computer, and 4 indicates a mailbox for storage.

Claims (1)

[Claims] In a message communication system having a plurality of telematics terminals and a switching device, if a receiving terminal has a failure when communicating between the terminals, the message is temporarily stored in a storage device in the switching device, and then transmitted from the switching device. A message communication system characterized by: