JP2712190B2 - Modem device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention will be described in the following order. A. Industrial application fields B. Summary of the invention C. Prior art D. Problems to be solved by the invention E. Means for solving the problems F. Function G. Embodiment (G-1) Implementation Example Configuration (FIGS. 1 to 3) (G-2) Operation of Embodiment (FIGS. 4 to 17) H. Effects of the Invention A. Field of Industrial Use Connected via communication line
For example, a modem device for exchanging data
For example, via a public communication line with a personal computer.
Used in data communication systems that perform data transmission
You. B. Summary of the Invention The present invention relates to a data terminal device connected to
Modem device for exchanging data with
Data provided by the data terminal device is stored in the storage unit.
Beforehand, the control information added to the data
The data is read from the storage unit at
The communication line to the destination specified in the control information.
It can be transmitted via the Internet. C. Conventional technology In general, personal communication
An electronic bulletin board (BB) that provides various data services using lines
S) and data communication systems such as e-mail
Data Terminal Equipment (DTE)
-Connect a personal computer to a data line termination device (DCE: Da
modem as ta circuit termination equipment)
(Modulation and demodulation) by connecting to the above public communication line through a device,
Transfer the data from the personal computer to the model
To the public communication line via the
・ Sent from a computer via the above public communication line
Incoming data to the personal
It is designed to be received by a computer. Also,
Modem equipment or data circuit-terminating equipment (DCE)
Sonal Computer or Data Terminal Equipment (DTE)
For example, RS-232C etc.
Has been qualified. In addition, data is
The above-mentioned modem device for performing data communication and general voice communication
And a network control device (NCU: Network Cont)
rol Unit) to selectively switch connections
Was. D. Problems to be Solved by the Invention By the way, data transmission is performed using a conventional modem device.
In a data communication system that performs
It must be connected to a dem
Personal computers used as data terminal equipment
Computer usage efficiency and the personal computer
Power consumption is a problem. Individual devices such as telephones, network control devices, and modem devices
Data terminal equipment through the data input / output end.
Modem and voice communication for externally connected data communication
The telephone control unit is connected to the public communication line by the network control unit.
Switching, and the network controller
You can add outgoing and automatic incoming calls,
Equipped with data buffer function to store transmission data in memory
Although additional modem telephones have been provided,
Modem telephones are basically equipped with telephone functions for voice communication.
Can be used by switching between the modem function for data communication
Information service by modem phone alone.
No service can be performed. Therefore, an object of the present invention is to solve the conventional problems as described above.
In consideration of this, data terminal equipment is connected and data is
In a modem device for transmitting and receiving data,
By giving data to the terminal device, the data
Even if the device is disconnected, the data
Information to be sent via the communication line to the destination specified at the time
Information service. E. Means for Solving the Problems The present invention aims to solve the problems as described above,
Connected to the communication terminal
In the model device, given by the above data terminal equipment
A storage unit for storing data to be stored, and
Analyze the specified control information and specify
The above data is read out from the above storage unit at the transmission time
Specified by the control information via the communication line.
Connection by exchanging authentication information with the
A control unit that performs automatic call origination / reception and current time information
And a timer unit for providing F. Function In the modem device according to the present invention, the data
The obtained data is stored in the storage unit, and the control unit
Analyzes the control information added to the data and sends it to the timer
The control information based on the current time information given by
The above data at the transmission time specified by
From the control information via the communication line.
Connection by exchanging authentication information with the specified destination.
To send and receive data automatically. G. Example Hereinafter, an example of the present invention will be described with reference to the drawings.
This will be described in detail. (G-1) Configuration of the Embodiment The embodiment shown in the block diagram of FIG.
This modem telephone is used for public communication.
Telephone unit for normal voice communication using line 1
10 and data communication by personal computer 2
A modem unit 20 for performing the communication using the public communication line 1
And the telephone unit 10 for the public communication line 1 and the telephone
Network control unit (NCU) 30 for switching connection of modem unit 20
To which the present invention is applied to a modem telephone 100 in which
In the control unit 40 for controlling the operation of the modem telephone 100,
The read-out in which the control program of the control unit 40 is written
Memory (ROM: Read Only Memory) 51 and transmission data
Random access memory (RAM: Random
Access memory) 52, the storage unit 50, and the control unit 40
A timer unit 60 for providing current time information is provided. In this embodiment, the telephone unit 10 has a dial
Numeric keypad 11 for data input and the numeric keypad 11
Is based on the dial data given by the control unit 40.
A dial signal generating circuit 12 for generating a dial signal;
A telephone handset 13 and the dial signal generation circuit 12 and
And a communication circuit 14 to which the handset 13 is connected.
The dial signal generation circuit 12 and the transmission / reception
The speaker 13 is connected to the network control unit 30 via the communication circuit 14.
Have been. Further, the network control unit 30 transmits the information to the modem telephone 100.
Line connection terminal 100A for external connection of public communication line 1
The line interface 31 internally connected to the
Entry and exit (not shown) of the communication circuit 14 of the machine unit 10 and the modem
Power circuit to the line connection end 100A.
A line switching circuit 32 selectively connected through a source 31;
The circuit interface via the public communication line 1
Detect the ring signal sent to 31
The ring detection circuit 33
The operation of the conversion circuit 32 is controlled by the control unit 40.
In addition, the output signal detected by the ring detection circuit 33 is controlled as described above.
The power is supplied to the control unit 40. Further, the control unit 40 transmits the data to the modem telephone 100.
Data terminal equipment (DTE)
Data input / output terminal 100B for external connection of
Microphone internally connected via 232C interface 70
It consists of a microprocessor (MPU: Microprocessor Unit)
Control program stored in the storage unit 50.
And the current time information provided from the timer unit 60, etc.
Then, control operations in various modes described below are performed.
As shown in the functional diagram of FIG.
Call function, automatic call function, manual call function and DT
The E control transmission / reception function is activated. The telephone function of the modem telephone 100 of this embodiment is
The network controller is selected by the controller 40 so as to select the talker unit 10.
30 by controlling this function.
Call mode is used for ordinary multi-function phones.
On-hook dial, redial speaker reception, etc.
So that you can In addition, the automatic calling / receiving function of the modem telephone 100,
The outgoing and incoming call function and the DTE controlled outgoing and incoming call function are
The control unit 40 controls the network control unit 30 to select 0.
This modem telephone is realized by controlling
The above personal computer externally connected to the data input / output terminal 100B of the
Null computer 2 as data terminal equipment (DTE)
Then, through the operation of the modem unit 20,
For example, as shown in FIG.
(DTE) When performing data communication with the 200,
In the case of the transmission / reception function, the control unit 40 controls the personal computer.
Under the online control by the null computer 2.
According to the control information given by the personal computer 2
Performs outgoing / incoming calls, and uses the manual outgoing / incoming function.
When the user manually operates the control unit 40,
To perform an outgoing / incoming call operation.
In the case of the function, the personal computer 2
And other data terminals connected via the public communication line 1
The above control according to the control information given by the device 200 etc.
The transmission procedure file formed in the RAM 52 of the storage unit 50 by the unit 40
Outgoing / incoming operations in accordance with the rules. (G-2) Operation of Embodiment In the modem telephone 100 of this embodiment, the control unit 4
0 indicates that the automatic call
The control operation shown in FIG.
When the control operation by the automatic transmission function is performed,
Monitors outgoing time data written in RAM 52 of unit 50
(Step 101) and execute the above-mentioned source formed in the RAM 52.
Check the outgoing call procedure file corresponding to the received time (step 10
2) The current time given by the timer unit 60 to perform the operation
The information is compared with the transmission time data (step 103).
While performing the registration in advance in step 102 above.
On-hook when the call procedure file at the call time is confirmed
Control (step 104) is performed. Next, the control unit 40
On-hook control in step 104 is performed correctly
Confirmation (step 105) that the call originates (step
The process proceeds to step 106).
Read the registered phone number data from the destination file
Given to the dial signal generating circuit 12 of the telephone unit 10.
Dial signal corresponding to the telephone number data
The dial signal is generated by the ear signal generation circuit 12 and the dial signal is generated.
A die transmitted from the network control unit 30 to the public communication line 1.
Performs earling control (step 107)
The establishment is confirmed (step 108). Then, the control unit 4
0 is the destination data terminal device in step 108
When the establishment of a data line between 200 and 200 is confirmed, the above R
Read mail data written in advance to AM52
The data is supplied to the modem unit 30 and is transmitted from the network control unit 30 to the public.
Make a call to the data terminal device 200 via the communication line 1
(Step 109). Further, the control unit 40 is configured to
Whether the e-mail transmission in step 109 ended normally
Is determined (step 110).
In the history information file provided in the RAM 52, the above automatic
Writing history information about sending mail by sending function
(Step 111) and then the outgoing call process
Clear the file (step 112) and enter standby mode
You. Further, the control unit 40 determines in step 108 that
If the establishment of the data line cannot be confirmed, or
In step 110, confirmation of normal termination of mail transmission
If not, go to step 113 and check for errors
After that, the transmission procedure of the above RAM 52 according to the transmission situation
After correcting the file (step 114),
To determine whether the retransmission setting has been set for the connection file
(Step 115), and if retransmission is set
After waiting for the retransmission time (step 116),
Return to on-hook control operation to perform redial processing
It has become. The number of redials or retransmissions
Is used for the correction processing of the transmission procedure file in step 114 above.
It is corrected so that it is reduced by one for each redial
You. In addition, the determination result of step 115 is “NO”
If the retransmission setting has not been made,
Moved to 1 and mail transmission cannot be performed normally
The history information indicating that
And then click on the outgoing call procedure file
Rear (step 112) and the apparatus enters a standby state. In the mail sending process in step 109, the control unit 4
0 indicates the above storage as shown in the flowchart of FIG.
Refer to the transmission procedure file formed in the RAM 52 of the unit 50
(Step 121) and refer to the outgoing mail facil
Automatically send outgoing mail (step 122).
(Step 123) to form an automatic outgoing mail (Step
(Step 124) and send an e-mail (Step 125). Here, in the modem telephone 100 of this embodiment,
The mail data handled is, for example, the data format shown in FIG.
Control statements (D _CONT ) And message
The text (D _MESS ), And the above message body
(D _MESS ) Before the control statement (D _CONT )But
Has been added. The above control statement (D _CONT ) Is the control as shown in FIG.
Statement (D _CONT ) Starts with control code [ESC /] □
Mari, KANJI: Kanji type of subsequent data (Kana or Shift JIS
Etc.) TITLE: Message title TYPE: Message type C …… Character type B …… Binary type UID: Sender's user index permitted on the receiving side
LOGIN: Login of the originating user permitted by the called party
Password PATH: Caller code COMMENT: Comment SIZE: Message size (message type is
It is added only for the Inary type. PASSWORD: forwarding password (only forwarding email is added
You. ♯nn TEL-NO: Transfer destination telephone number ♯ nn SPEED: Transfer destination communication speed ♯ nn CHAR: Transfer destination character structure ♯ nn KANJI: Transfer destination kanji type ♯ nn UID: Authorized user on transfer side Indexco
♯ LOGN: Login password permitted on the transfer side ♯ COM COM COM 転 送 COM COM COM COM COM COM COM COM COM COM COM COM COM COM COM COM COM COM COM COM COM COM 制 御 COM COM COM COM COM COM COM COM TIME TIME 制 御 TIME TIME 制 御 制 御 COM 制 御 制 御 COM TIME COM 制 御 COM TIME COM COM TIME TIME COM TIME TIME TIME 制 御 COM COM 制 御
It ends with the code [ESC /] □. Here, each system following the above transfer password [PASSWORD]
In the information, the added [@nn] is the sequential number.
One for each transfer destination in the transfer path
It is valid only when there is a pad [PASSWORD]. Then, the control unit 40 executes the automatic
In the process of forming a mail, the personal computer
From the computer 2 or via the above public communication line 1.
The data shown in the flowchart of FIG.
Judge the type of outgoing mail to be formed (step
131). Normal outgoing mail formation process (step 1
32), the control statement (D _CONT ) Control code [E
SC /], Kanji type of subsequent data [KANJI], message
The title [TITLE], message type [TYP
E], originating user index code [UID], originating
Original user login password [LOGIN], caller ID
Mode (PATH), comment (COMMENT), message
Size [SIZE], control statement (D _CONT ) Control command indicating the end of
Control information by placing control information in the order of
(D _CONT ) To form (step 133 to step 142)
Notation control statement (D _CONT ) To the message body (D _MESS )
Add (step 143) to form outgoing mail
I do. In addition, outgoing mail with transfer specification (hereinafter referred to as transfer mail)
Is called. In the formation process (step 144),
Statement (D _CONT ) Control code [ESC /] indicating the start of
Kanji type of data [KANJI] designation, message type
Toll [TITLE], message type [TYPE], sender
User index code [UID], originating user
Login password [LOGIN], caller code [PAT
H], comment text [COMMENT], message size [SI
ZE] followed by the transfer password [PASSWORD].
Step 145-Step 154)
After setting the parameters (step 155),
(D _CONT ) Control code [ESC /] indicating the end of
Your sentence (D _CONT ) (Step 156), and the control statement
(D _CONT ) To the message body (D _MESS )
157) to form a forwarded mail. Sa
Further, the setting processing of the transfer destination parameter in the above step 155
Now, as shown in the flowchart of FIG.
The unit 40 includes a transfer destination telephone number [TEL-NO] and a transfer destination communication.
Speed (SPEED), destination character configuration (CHAR), transfer
Kanji type [KANJI] of destination
The index code [UID], the
Login password [LOGIN], destination comment [COMME
NT) and the forwarding time of the forwarded mail [TIME].
Place your information (step 161 to step 168)
To determine whether there is another forwarded mail (step 16
9) If there is another forwarded mail, go to step 1
Return to step 61 and set the forwarding
Data settings and if there is no other forwarded mail
In this case, the transfer destination parameter setting process ends. Thus, the modem telephone 100 of this embodiment is
A personal computer externally connected to the data input / output terminal 100B
On the computer 2, the above transmission time data and transmission procedure file
And control information such as the data of the destination
To give the added mail data to the control unit 40 in advance.
The control unit 40 is included in the given mail data.
By interpreting the control information that is sent,
Form a destination file and write it to the RAM 52 of the storage unit 50
It has become. The modem telephone 100 is thus
・ Computer 2, that is, data terminal equipment (DTE)
The given control information is stored in the RAM 52 of the storage unit 50.
By placing, for example, as shown in FIG.
From the data input / output terminal 100B to the above personal computer
Even if modem phone 100 alone with 2 removed,
The control program previously written in the ROM 51 of the storage unit 50
The control unit 40 becomes a data terminal equipment (DTE) according to the
And responds to the control information written in RAM 52 above.
Outgoing mail data via the public communication line 1
Can be sent dynamically. Further, in the modem telephone 100 of this embodiment,
The control unit 40 includes an automatic call reception function of the above automatic call transmission / reception functions.
Is shown in the flowchart of FIG.
As described above, when performing the control operation by the automatic incoming call function,
Ring signal sent via public communication line 1
Based on the ring detection circuit 33 for detecting the ringing signal
Thus, the ring detection circuit 33 moves up a predetermined number of times.
Check that the ring signal has been detected (step 201).
And then proceed to the receiving operation (step 202)
Handover with other data terminal equipment connected via line 1
Check the data shake (Step 203) and check the data online
In (step 204), the public communication line 1
Data sent from other data terminal devices via
Demodulated by the modem unit 20 and stored in the RAM 52 of the storage unit 50.
A mail receiving process (step 205) to be written to the server is performed. What
Note that the control unit 40 controls the hand in step 203.
If you cannot confirm the shake, immediately disconnect the line
It goes into a standby state. Further, the control unit 40 controls the mail reception process.
The operation is performed as shown in the flowchart of FIG.
The data sent via the public communication line 1
Check the block number added to each block
(Step 221) and check of inverted block number
The block added to the received data by (Step 222)
Check that the lock number is correct before checking
Error (step 223), and checksum is correct
Data is stored in the data buffer area of the RAM 52 of the storage unit 50
It is stored (step 224). Then, the control unit 40
Analysis of data stored in RAM 52 (step 225)
Completes the acknowledgment code [ACK]
Send to line 1 (step 226) and monitor the received data
(Step 227), and the transmission end code [EOT] is
Judgment as to whether or not it has been sent via communication line 1 (step
228) and received the transmission end code [EOT].
Occasionally, the line is cut off to stop receiving mail,
When the transmission end code [EOT] has not been sent
Indicates that the header start code [SOH] of the received data block is
Judgment as to whether or not the message has been sent via the public communication line 1
(Step 229) is performed. In step 229 above,
When the reception of the header start code [SOH] cannot be confirmed
Return to step 227 and continue monitoring the received data
And confirms the reception of the above header start code [SOH].
Return to step 221 above,
Perform the check operation of the lock number. Here, the block number check in step 221 is performed.
If the check operation result is “NO”, that is, the original block
If the received data block is not
If the block number is
Is it the same as the block number of the analyzed data block?
A determination is made (step 230), and the determination result is “Y
ES ", that is, when the data block has already been received
Is the operation of sending the acknowledgment code [ACK] in step 226 above.
And the determination result in step 230 is “N
If "O", incorrect data was sent to the sender
A negative response code [NAK]
After transmitting to line 1 (step 231),
Move to 27 data monitoring operation to monitor the next received data
You. It should be noted that the inverted block number in step 222 above
If the result of the check operation is "NO" or
If the checksum error judgment result in 3 is "YES"
In this case as well, the process proceeds to step 231 where the negative response code [NA
K] to the public communication line 1 (step 231).
Then, the process proceeds to the data monitoring operation in step 227, and
Monitor incoming data. Further, the control unit 40 is configured as shown in the flowchart of FIG.
The data analysis processing is performed by such a control operation. That is, the control unit 40 stores the RAM 52 of the storage unit 50
Monitor the received data stored in the data buffer area (scan
Step 241) Then, enter the control code [ESC
/] (Step 242), and
-Mat check (step 243), title [TITLE]
Confirmation (step 244), check the data type [TYPE]
(Step 245), user index code [UID]
Check (step 246), login password [LOG
IN] (Step 247) and then the sender
Confirmation (Step 248) and comment text [COMMENT]
(Step 249) is performed. Next, the control unit 40
The data type of the received data is binary type (B)
Or character type (C) (step
250), and for binary type (B),
Check the data size (Step 251)
Check transfer password [PASSWORD] in received data
(Step 252) and the data type of the received data
Immediately when the type is character type (C)
Go to step 252 and enter the transfer password [PASSWORD].
Perform a check. Then, the control unit 40 executes the step
In step 252, the transfer password [PASSWOR
D) is not included, the received data is
To the incoming mail processing (step 253)
Check the control code [ESC /] in the received data.
(Step 254), the mail data in the received data
After confirming the data (step 255),
Write the above mail data in the mailbox area of RAM 52
(Step 255), and
History information about the above mail reception operation in the history information file
(Step 257) and receive the above mail
End the operation. Here, the control unit 40 performs step 242, step
243, step 245, step 246, step 247 and step
As a result of each check in step 251, the received data is
If the error does not meet the standards, check the error information.
(Step 258), and confirms the data buffer area of the RAM 52.
After clearing the area (step 259),
And the mail receiving operation cannot be performed normally
The history information indicating that
And the mail receiving operation is terminated. Further, the control unit 40 determines in step 252 that
And the transfer password [PASSWORD] is included in the received data
If it is confirmed that the received data is
Forwarding data reception processing (step 25
Move to 3) and control as shown in the flowchart of Fig. 14.
Perform the operation. That is, the control unit 40 proceeds to the forwarded mail receiving process.
Then, first, the operation of confirming the transfer control information (step 261)
To check the format of the received data.
Step 262), as transfer control information in the received data
Check the included forwarding phone number data [TEL-NO].
Check (step 263), check the communication speed data [SPEED].
Check (step 264), check the data configuration (step
265), check the kanji type code [KANJI] (step
266), check the user index code [UID]
(Step 267), enter the login password [LOGIN]
Checking of various transfer control information such as check (step 268)
Check the comment (COMMENT)
269), and furthermore, the transmission time data [TIME]
Check (step 270). Then, next,
Check the control code [ESC /] in the
Confirmation of forwarded mail data in communication data (step 271)
After performing the above, the transfer mail area of the RAM 52 of the storage unit 50
Write the above forwarded mail data to (Step 272)
Do. Then, the transfer system added to the received data
Perform outgoing call procedure processing (step 273) based on your information.
The RAN52 history information file
Write history information on file reception operation (step 27
Perform 4) to end the above forwarded mail receiving operation. Then, the control unit 40 executes the processing in the flowchart of FIG.
As shown in FIG.
The message body of the received data (D _MESS )
Control statement (D _CONT Interpret control information in
Then, the transmission procedure file creation process (step 281)
After performing the mail creation process (step 282),
The registration of the communication time is performed (step 283). The control unit 40 transmits the transmission procedure file of step 281.
In the file creation process, as shown in the flowchart of FIG.
, Outgoing classification, message title [TITLE], outgoing
User index code [UID], caller code
[PATH], comment text [COMMENT], message type
Specify [TYPE] (Step 284-Step 289)
Furthermore, the number of untransmitted members is specified (step 290),
The number of communication mail files is specified (step 291). Next
In addition, the control unit 40 determines that the number of outgoing mail files is plural.
(Step 292) to determine whether the outgoing mail
If the number of files is not multiple, one outgoing facsimile name
Specify (step 293) and specify the number of outgoing mail files
If there is more than one, specify the outgoing file name
Confirmation (step 294), then check the number of outgoing members
(Step 295) The number of outgoing members is more than one
(Step 296) to determine whether the caller
If the number is not plural, set the parameters of the destination
(Step 297) once, and the number of outgoing members
If there is more than one, set the parameter of the destination
(Step 298)
The configuration process ends. In addition, the control unit 40 transmits
In the file creation process, as shown in the flowchart of FIG.
The user index code [UID] of the sender,
User code [PATH], message type [TYPE], message
Page titles [TITLE] are sequentially registered (steps 301 to 301).
Step 304) and then register the message body (Step
305) and register the file name (step 30)
6) Then, the above outgoing mail creation processing ends. And, in the modem telephone 100 of this embodiment,
In this way, the control unit 40 communicates via the public communication line 1
Transfer mail data of the received data
Wachi message body (D _MESS ) To the RAM 52 of the storage unit 50
Remember and store the message body (D _MESS )
Control statement D added to _CONT ) Interprets the control information in
To form the transmission procedure file and transmission destination file
By writing to the RAM 52, the automatic
Using the communication function, the current
Based on the time information, the source specified by the control information
The above message body (D _MESS ) Forward e-mail
Data from the RAM 52 as data
To the specified destination via the above public communication line 1
Control. The modem telephone 100 is connected to the personal computer as described above.
Computer 2 or data terminal equipment (DTE)
Is stored in the RAM 52 of the storage unit 50.
By setting, the data input / output terminal 100B
In FIG. 10 with the personal computer 2 removed
Even in the state of the modem telephone 100 shown alone, the storage unit 50
According to the control program previously written in the ROM 51
Control unit 40 operates as a data terminal equipment (DTE)
The automatic call receiving function for receiving the mail
Just like the calling function, the modem phone 100 works alone and the RAM
52 according to the control information written in 52
Various types of electronic bulletin boards (BBS) and e-mail via line 1
Data communication control can be performed automatically. H. Effects of the Invention In the modem device according to the present invention, the data
The obtained data is stored in the storage unit, and the control unit
Analyzes the control information added to the data and sends it to the timer
The control information based on the current time information given by
The above data at the transmission time specified by
From the control information via the communication line.
Connection by exchanging authentication information with the specified destination.
Data terminal device automatically to send / receive data.
Specify the data at the specified time, even if it is separated
Information service that sends a call to a designated destination via a communication line
Can be performed by the modem device alone. That is, the modem device according to the present invention is a data terminal
The original modem device provided between the device and the communication line
Data terminal equipment
Data with automatic call origination / reception

Function as data terminal equipment. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram of a modem telephone showing a configuration of one embodiment of the present invention, FIG. 2 is a functional diagram showing functions of the modem telephone of the above embodiment, and FIG. FIG. 4 is a schematic diagram showing a use state of the modem telephone, FIG. 4 is a flowchart showing a control operation of a control unit using an automatic transmission function of the modem telephone, and FIG. FIG. 6 is a flowchart showing a control operation of a mail transmission process in a control operation using a transmission function, FIG. 6 is a schematic diagram showing a data format of transmission data handled by the modem telephone, and FIG. FIG. 8 is a schematic view showing a specific example of a format. FIG. 8 is a flowchart showing a control operation of an automatic outgoing mail forming process in the mail sending process by the control unit. FIG. 9 is a flowchart showing a control operation of setting processing of a transfer destination parameter in the mail sending processing by the control unit, and FIG. 10 shows a use state of the modem telephone with the data terminal device removed. It is a schematic diagram,
FIG. 11 is a flowchart showing a control operation of the control unit using the automatic incoming call function of the modem telephone, and FIG.
FIG. 13 is a flowchart showing a control operation of a mail receiving process in the control operation using the automatic incoming call function by the control unit. FIG. 13 is a flowchart showing a control operation of a data analysis process in the mail receiving process by the control unit. FIG. 14 is a flowchart showing a control operation of the forwarded mail receiving process in the mail receiving process by the control unit, and FIG. 15 shows a control operation of a transmission procedure process in the forwarded mail receiving process by the control unit. FIG. 16 is a flowchart showing a control operation of a transmission procedure file creation process in the transmission procedure process by the control unit, and FIG. 17 is a control of an outgoing mail creation process in the transmission procedure process by the control unit. It is a flowchart which shows an operation. 1 Public communication line 2 Personal computer 10 Telephone unit 20 Modem unit 30 Network control unit 40 Control unit 50 Storage unit 60 Timer unit 100 Modem telephone 100A … Line connection end 100B …… Data input / output end

   ────────────────────────────────────────────────── ─── Continuation of front page    (56) References JP-A-61-167261 (JP, A)                 JP-A-62-51361 (JP, A)                 62-71956 (JP, U)

Claims (1)

(57) [Claims] In a model device connected to the data terminal device and connected to the communication line, a storage unit for storing data provided by the data terminal device, and analyzing control information added to the data, At the transmission time specified by the control information, the data is read out from the storage unit, and connected by communicating authentication information with the destination specified by the control information via the communication line to automatically send and receive data. And a timer unit for giving current time information to the control unit.