JP2756984B2 - Control method of data terminal device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a control method of a data terminal device having an automatic calling / receiving function.

[Prior Art] In general, a data terminal device that mutually transmits data cannot know the state of a partner device for data transmission.

For this reason, when the called party's device rejects the incoming call (busy state) for some reason, the same destination is repeatedly called at a certain time interval until the called party answers the incoming call.

[Problem to be Solved by the Invention] As described above, in the related art, since the calling terminal repeatedly repeats the call until the partner device answers the incoming call, for example, a failure occurs in the partner device, When the busy state continues for a long period of time, there is a problem that a useless recall operation is repeatedly performed.

Further, when the busy state occurring in the partner apparatus ends in a very short time, the calling terminal does not know the end timing, so that the instability of data transmission is impaired.

Further, there is a case where a useless call operation in which another operator performs a call operation to a destination which is in a re-call state when a certain operator calls is performed.

Note that, for example, a digital circuit network or a packet switching network has a function of notifying the cause when the called terminal rejects a call. Terminal status is not properly notified.

The present invention has been made in view of such circumstances,
It is an object of the present invention to provide a control method of a data terminal device that can realize an efficient calling operation.

Means for Solving the Problems The present invention relates to a method for controlling a data terminal device having an automatic sending / receiving function, wherein a call rejection monitoring means for monitoring that an incoming call rejection state has occurred in its own terminal; A waiting time storage means for storing a call rejection release waiting time corresponding to the call rejection state, and a call rejection release waiting time corresponding to the detected call rejection state when the call rejection monitoring means detects the call rejection state. Calculating means for calculating an incoming call rejection release time in addition to the current time, and an incoming call rejection information storage means for storing the incoming call rejection release time and incoming call rejection state identification information calculated by the calculating means; If the incoming call rejection information storage means stores the incoming call rejection state identification information at the time of detecting the incoming call, the receiving apparatus The sending device responds with the rejection, and the sending device responds with the rejection,
Until the incoming call rejection release time included in the response signal, all calls to the same destination for which communication is instructed are stopped.

Also, in the control method of the data terminal device having the outgoing / incoming call function, the incoming call rejection monitoring means for monitoring that the incoming call rejection state has occurred in the own terminal, and the incoming call rejection release waiting time corresponding to each incoming call rejection state When the incoming call rejection monitoring means detects the incoming call rejection state, the incoming call rejection release waiting time corresponding to the detected incoming call rejection state is extracted from the waiting time storage means,
Calculation means for calculating the call rejection release time in addition to the current time; call rejection information storage means for storing the call rejection release time calculated by the calculation means and call rejection state identification information; The apparatus further includes an incoming call rejection destination storage unit that stores an incoming call rejection release time of the destination,
When the incoming call rejection information storage means stores the incoming call rejection state identification information at the time of detecting the incoming call, the incoming call rejection is responded to the transmitting device in a state of notifying the incoming call rejection release time, and the transmitting device
When the call rejection is answered, the call rejection release time and the destination included in the response signal are stored in the call rejection destination storage means, and the fact that the call is a call rejection destination is displayed and output. Until the time, all calls to the same destination for which communication is instructed are stopped.

Also, in the control method of the data terminal device having the outgoing / incoming call function, the incoming call rejection monitoring means for monitoring that the incoming call rejection state has occurred in the own terminal, and the incoming call rejection release waiting time corresponding to each incoming call rejection state When the incoming call rejection monitoring means detects the incoming call rejection state, the incoming call rejection release waiting time corresponding to the detected incoming call rejection state is extracted from the waiting time storage means,
Calculation means for calculating the call rejection release time in addition to the current time; call rejection information storage means for storing the call rejection release time calculated by the calculation means and call rejection state identification information; The apparatus further includes an incoming call rejection destination storage unit that stores an incoming call rejection release time of the destination,
When the incoming call rejection information storage means stores the incoming call rejection state identification information at the time of detecting the incoming call, the incoming call rejection is responded to the transmitting device in a state of notifying the incoming call rejection release time, and the transmitting device
When the call rejection is answered, all calls to the same destination instructed to be communicated are stopped until the call rejection release time included in the response signal, and the call rejection release time included in the response signal And the destination is stored in the incoming call rejection destination storage means, and when a call destination is input by operation, and when the operation-inputted destination information is stored in the incoming call rejection destination storage means, the destination is an incoming call rejection destination. This is displayed on the screen.

[Operation] Therefore, for the destination in the incoming call rejection state, even if the transmitting device attempts to make a call, the calling operation is not performed, so that useless calling is prevented. In addition, the receiving side determines the release time of the incoming call rejection state, and notifies the transmitting side of the determined release time of the incoming call rejection state. A call operation can be performed, and an efficient re-call operation can be performed.

Further, when the call rejection is responded, the transmitting device stores the call rejection release time and the destination included in the response signal in the call rejection destination storage means, and displays and outputs that the call is a call rejection destination. By doing so, the operator on the transmitting side can clearly know the destination in the call rejection state, and therefore, it is possible to prevent the operation of useless calling operation.

Further, when the call rejection is responded, the transmitting device stops all calls to the same destination instructed to communicate until the call rejection release time included in the response signal, and includes the call in the response signal. The incoming call rejection release time and its destination are stored in the incoming call rejection destination storage means, and when a call destination is input, the operation-inputted destination information is stored in the incoming call rejection destination storage means. In some cases, the display indicating that the destination is a call rejection destination is displayed, so that the operator on the transmitting side can clearly know that the destination information input by himself / herself is in a call rejection state, and The user can clearly know that the received destination information is in a call rejection state, and the operability is improved.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a diagram illustrating an example of a transmission path according to an embodiment of the present invention.
4 shows a Group 4 facsimile machine using a DN.

In the figure, the system control unit 1
The system memory 2 stores a control processing program executed by the system control unit 1 and various data necessary for the control processing program. The parameter memory 3 stores various information unique to the group 4 facsimile apparatus, for example, shortened dial information.

The scanner 4 is for reading a transmission original at a predetermined resolution, the plotter 5 is for recording and outputting an image at a predetermined resolution, and the operation display unit 6 is for operating the facsimile machine. belongs to.

The incoming call rejection monitoring registration unit 7 monitors the occurrence of the incoming call rejection state in the group 4 facsimile apparatus and, when detecting the occurrence of the incoming call rejection state, notifies the current time and the respective incoming call rejection responses. On the other hand, a call rejection release time is calculated based on a preset call rejection release time, and the call rejection information and the call rejection release time are registered.

Here, an example of the relationship between the incoming call rejection state and the incoming call rejection release time is shown in Table 1 below.

The encoding / decoding unit 8 encodes and compresses the image signal and decodes the compressed image information into the original image signal. This is for storing various data such as image information and re-call management information (to be described later).

The communication control unit 10 is for executing the transmission control procedure processing of the group 4 facsimile apparatus, and the ISDN line control unit 11 is for implementing the line control processing of the basic interface function of ISDN. The interface circuit 12 is for connecting the group 4 facsimile apparatus to ISDN.

Here, the ISDN line control unit 11 realizes an ISDN layer 3 line control function, and the ISDN interface circuit 12 realizes an ISDN layer 1 and 2 line control function.

The system control unit 1, the system memory 2, the parameter memory 3, the scanner 4, the plotter 5, the operation display unit 6, the call rejection monitoring registration unit 7, the encoding / decoding unit 8, the magnetic disk device 9, and the communication control unit 10 Various kinds of necessary information are exchanged via the system bus 13.

The communication control unit 10, the ISDN line control unit 11, and the IS
The DN interface circuit 12 uses a local bus 14 to
Signals on the channel (signal channel) are exchanged, and information on the B channel (information channel) is exchanged using the local bus 15. The local buses 14 and 15 are also connected to the system bus 13 so that the ISD
The N line controller 11 and the ISDN interface circuit 12 exchange various necessary information with the system controller 1 via the local buses 14 and 15 and the system bus 13.

FIG. 2 shows an example of the operation surface of the operation display unit 6.

In the figure, a start key 6a is for starting a transmission operation and a reception operation of the facsimile machine, and a stop key 6b is for stopping the operation of the facsimile machine.

The numeric keypad 6c is used for inputting numerical information such as a telephone number and a speed dial, and the telephone number key 6d.
Is used to set a mode in which all digits of the destination information are operated and input from the numeric keypad 6c.
6e is for setting a mode for inputting destination information using the one-touch key 6f.

The one-touch key 6e is for inputting a destination number by one key operation, and a large number of keys are arranged in a matrix. Each key is provided with a light emitting diode 6f for displaying that the destination assigned to each key is in a call rejection state.

The liquid crystal display 6h is for displaying and outputting various display information such as an operation guidance message displayed by the facsimile apparatus to the operator.

Here, the ISDN of this group 4 facsimile machine etc.
A basic data transmission procedure performed by the terminal device will be described.

As shown in FIG. 3 (a), the calling terminal first sends a call setup message SETUP to ISDN to request a call setup with the called terminal, and the ISDN sends a call setup message to the designated called terminal.
Send SETUP to make a call. ISDN sends a call setting acceptance message CALL_PROC for notifying the call setting status to the calling terminal.

Upon detecting an incoming call, the called terminal sends a calling message ALERT to ISDN when the own terminal is ready to receive a call, and the ISDN sends a calling message ALERT to the calling terminal and starts calling the called terminal. Notify.

When the called terminal answers the incoming call, the response message CONN is sent to ISDN.
ISDN sends a response message CONN to the calling terminal to notify that the called terminal has accepted the call.

Also, ISDN sends a response confirmation message CONN_ACK to the called terminal.
To confirm the response of the called terminal, at which point an information channel for data transmission is established between the calling terminal and the called terminal.

As a result, data transmission between the calling terminal and the called terminal is performed according to the transmission control procedure set for each transmission function. For example, in a group 4 facsimile apparatus, image information transmission is performed based on a group 4 facsimile transmission control procedure.

When the data transmission is completed, the originating terminal sends a disconnection message DISC to the ISDN to request release of the information channel, and the ISDN sends a disconnection message DISC to the destination terminal to notify the destination of the restoration of the information channel.

As a result, when the destination terminal responds to the ISDN with a release message REL for notifying the completion of the channel disconnection, the release message REL is transmitted from the ISDN to the calling terminal. When the channel release is completed, the calling terminal issues a release completion message REL_COMP to the ISDN.
To notify that fact, ISDN sends a release completion message REL_COMP to the destination terminal, the release of the information channel is established, and the information channel set between the calling terminal and the destination terminal Is completely released.

Thus, an information channel is set between the calling terminal and the called terminal, data transmission is performed, and when the data transmission ends, the information channel is released.

On the other hand, if the called terminal fails to answer the incoming call for some reason when the incoming call is detected, the called terminal returns a release completion message REL_COMP to the call setup message SETUP as shown in FIG. , Perform call disconnection recovery.

Now, as shown in FIG. 4 (a), each message for call setting is a protocol specification (format, sequence, etc.) for defining a layer 3 call control message.
Protocol identifier to identify the message, the call number to identify which call the message is involved in, the message type to identify the content of each message, and the mandatory attached to each message It consists of information elements and additional information elements added to each message as needed. The required information element is set to 0, 1, or a plurality according to the message type, and the additional information element is set according to the situation.
Zero, one or more are arranged.

The call setup message SETUP has "transmission capability" as an essential information element as shown in FIG. 2B, and includes "calling number", "calling number", and "lower layer compatibility" as additional information elements. "," Higher layer consistency ", and
It has information elements such as "user / user".

Also, the release completion message REL_COMP has information elements of “reason display”, “display”, and “user / user” as additional information elements as shown in FIG.

 The outline of these information elements will be described.

The "transmission capability" information element uses an information transfer capability indicating whether the content of information to be transmitted is voice, unrestricted digital information, restricted digital information, 3.1KHz audio, 7KHz audio, or video. The switching function includes a transfer mode indicating whether the switching function is a circuit switch or a packet switch, an information transfer speed indicating an information transfer speed, information indicating an information transfer mode, and information indicating a user information protocol.

The [calling number] information element is the ISDN address (number) of the calling terminal
And the “destination number” information element indicates the ISDN address of the called terminal.

The “lower layer compatibility” information element is used for a communication possibility check with the partner terminal, and has the same basic content as the “transmission capability” information element. Further, the "lower layer consistency" information element contains more detailed contents.

The "higher layer compatibility" information element is for use in the consistency check with the partner terminal, and includes group 2 / group 3 facsimile, group 4 facsimile, mixed mode, teletex, videotex, telex,
Alternatively, it indicates which of the message handling systems is provided as a terminal function.

The "user / user" information element is for transmitting information between the calling terminal and the called terminal, and the content thereof is transmitted to the user transparently without being interpreted by ISDN.

The "reason display" information element is for describing the reason for generating a certain message (in this case, the release completion message REL_COMP), and for displaying diagnostic information when there is a procedural error.

The “display” information element is used to provide display information to be displayed at the destination terminal or the calling terminal.

In this embodiment, by setting the incoming rejection release time information stored in the incoming rejection monitoring registration unit 7 to the "user / user" information element of the release completion message RLE_COMP responding when the incoming call is rejected, Notification of the rejection cancellation timing. Also, in order to indicate that the incoming call rejection release time information can be received, the calling terminal sets the “user / user” in the call setup message SETUP.
A predetermined service identification signal is set in the "user" information element.

FIG. 5 shows an example of processing performed by the called terminal when an incoming call is detected. In the following description, a group 4 facsimile apparatus having the configuration shown in FIG. 1 is used for the calling terminal and the called terminal.

That is, when the call setting message SETUP is received and an incoming call is detected, it is checked whether the incoming call rejection information is registered in the incoming call rejection monitoring registration unit 7 and the mobile phone is in the incoming call rejection state (decision 101). When the result is NO,
The call can be answered.
102), and execute the subsequent processing.

If the result of decision 101 is NO, it is checked whether a predetermined service identification signal is set in the "user / user" information element of the call setup message SETUP (decision 10).
3) If the result of determination 103 is YES,
In the "user" information element, a release completion message REL_COMP in which a call rejection release time information registered in the call rejection monitoring registration unit 7 and a predetermined service identification signal are set, and the release completion message REL_COMP is generated (Step 104), and the call is disconnected.

When the result of the determination 103 is NO, the release completion message REL_ without the “user / user” information element
A COMP is formed, the release completion message REL_COMP is responded to the calling terminal (process 105), and the call is disconnected and restored.

FIG. 6 shows a processing example performed by the calling terminal at the time of calling.

When the operator sets the transmission original on the scanner 4 and inputs the destination information and sets the transmission mode from the operation display unit 6 and turns on the start key 6a, the originating terminal reads and encodes the image of the transmission original. With the image information obtained by encoding and compression in the decoding unit 8 and storing the image information in the magnetic disk device 9, the operation-input destination information is set in the “calling number” information element, and a predetermined service identifier is set to “ A call setup message SETUP set in the "user / user" information element is sent to ISDN (process 201).

It waits to receive a response signal to the call setup message SETUP, and determines whether the response signal received at that time is a release completion message REL_COMP (decision 202).

When the result of the determination 202 is NO, the process proceeds to a normal call setup procedure according to the received response signal (step 20).
3) Execute the subsequent processing.

When the result of the determination 202 is YES, a release completion message REL_COMP is sent to recover from the call disconnection, the call setting operation is temporarily terminated (process 204), and the call origination management information is transmitted to perform a re-call to the same destination. Is formed and stored in a predetermined storage area of the magnetic disk device 9 (process 205).

Here, as shown in FIG. 7, the re-call management information includes a file number for identifying image information to be re-called, destination number information indicating a transmission destination, re-call time information indicating a re-call time, and re-call time information. It is composed of file storage area information indicating the storage area occupied by the image information file to be called in the magnetic disk device 9 and transmission mode information indicating the transmission mode of the image information.

Further, in the process 205, the re-calling time information registered in the re-calling management information is, if the release completion message REL_COMP received at that time contains the incoming rejection release time information, the incoming rejection release time information. When the incoming call rejection release time information is not included, the time at which a fixed time (for example, 5 minutes) has elapsed from the time at that time is set as the recall time.

When the process 205 is executed to form the re-call management information, it is checked whether the destination number registered in the re-call management information is registered in the one-touch key 6f (determination 20).
6) When the result of the determination 206 is YES, the operation display unit 6 is instructed to blink the light emitting diode 6g attached to the one-touch key 6f (step 207).

When the result of the judgment 206 is NO, the process 207 is not executed.

Thus, in the calling terminal, the call setup message SETU
Release response message REL from ISDN as a response signal to P
When _COMP is returned, the call setting operation is terminated at that time to release and restore the call, and re-call management information for re-calling the same destination is formed.

At the same time, when the called terminal whose call has been rejected is registered in the one-touch key 6f, the one-touch key
By blinking and lighting the light emitting diode 6g attached to 6f, the operator is notified that the destination cannot respond to the incoming call.

When the operator inputs a destination number from the numeric keypad 6c of the operation display unit 6, the destination number becomes
At that time, it is checked whether or not any of the recall management information stored in the magnetic disk device 9 is registered.

If the destination number is registered, a guidance message as shown in FIG.
Is displayed on the liquid crystal display 6h, and the calling operation is invalidated.

Here, in the field R1 of the guidance message, the destination number input at that time is displayed, and in the field R2,
The contents of the re-call management information in which the same destination number as the operation input is registered and the re-call time information registered in the same re-call management information are displayed.

FIG. 9 shows an example of processing executed at predetermined time intervals, for example, at one-minute intervals when the calling terminal is in a standby state.

The calling terminal first checks whether or not one or more recall management information is registered in the magnetic disk device 9 (determination 30).
1) When the result of the judgment 301 is YES, it is checked whether there is re-call management information in which re-call time information for which a time before that point is set is registered.
302).

When the result of the determination 302 is YES, the destination number registered as the destination number information of the re-call management information is
It is checked whether or not any one of the one-touch keys 6f is registered (decision 303).

When the result of the determination 303 is YES, the operation display unit 6 is instructed to stop the blinking and lighting of the light emitting diode 6g attached to the one-touch key 6f (process 304).
When the result of the determination 303 is NO, the process 304 is not executed.

Then, the call setting message in which the destination number registered in the re-call management information selected at that time is set in the "calling number" information element and a predetermined service identifier is set in the "user / user" information element SETUP is sent to ISDN (process 305).

It waits to receive a response signal to the call setup message SETUP, and determines whether the response signal received at that time is a release completion message REL_COMP (decision 306).

When the result of the determination 306 is NO, the process proceeds to a normal call setup procedure according to the received response signal (step 30).
7) Execute the subsequent processing.

When the result of the determination 306 is YES, a release completion message REL_COMP is sent to recover the call disconnection, the call setting operation is completed once (process 308), and the re-call management information is formed in the same manner as the process 205 described above. Then, the recall management information is stored in a predetermined storage area of the magnetic disk device 9 (process 30).
9).

Then, it is checked whether the destination number registered in the re-call management information formed at that time is registered in the one-touch key 6f (decision 310), and when the result of the decision 310 is YES, the one-touch key 6f is checked. An instruction is given to the operation display unit 6 to blink the attached light emitting diode 6g (step 311). When the result of the determination 310 is NO, the process 311 is not executed.

In this way, the calling terminal checks at regular time intervals whether or not there is a re-call waiting destination whose re-call time has passed, and if there is such a destination, the re-calling is performed for that destination. Perform the operation.

When the destination is registered in the one-touch key 6f, the light-emitting diode 6g attached to the one-touch key 6f stops blinking and lighting, and notifies the operator that the destination may be able to answer the incoming call. .

With the above configuration, the incoming call rejection monitoring registration unit 7 of the group 4 facsimile apparatus constantly monitors the state of its own terminal device, and when it is determined that any of the incoming call rejection states has occurred, the incoming call rejection The call rejection information indicating the state, the time at which the determination was made, and the release time stored in association with the call rejection state are calculated to calculate the call rejection state release time, and the call rejection state release time is represented. Register incoming rejection state release time information.

When the group 4 facsimile apparatus receives the call setup message SETUP from ISDN, it executes the above-described processing, and releases any incoming call rejection information in the incoming call rejection monitoring registration unit 7 to reject the incoming call. Responds to ISDN with a completion message REL_COMP, and clears the call.

At this time, when a predetermined service identifier is set in the “user / user” information element of the call setup message SETUP, the call rejection management registration unit 7 stores the “user / user” information element of the release completion message REL_COMP. The registered call rejection release time information and a predetermined service identifier are set.

On the other hand, the calling terminal sends out a call setup message SETUP with a predetermined service identifier set in the "user / user" information element, and responds to the release end message R
When EL_COMP is returned from ISDN, a release completion message REL_COMP is sent out, and at that time the call is disconnected and restored, and the system shifts to a state of waiting for a re-call to the same destination.

In addition, the recall management information for managing the recall call waiting includes a release completion message REL_CO
When the incoming call rejection release time information is set in the "user / user" information element of the MP, the incoming call rejection release time information is registered as re-call time information.

Then, if there is re-call management information whose re-call time has passed, the re-call set in that is performed.

Accordingly, the calling terminal re-calls the called terminal when the incoming call rejection state occurring in the called terminal is released, so that a very efficient re-call operation can be performed.

Further, when the destination number of the destination in the recall standby state is registered in the one-touch key 6f, the light emitting diode 6g attached to the one-touch key 6f
Blinks and lights to notify the operator that image information cannot be transmitted to the destination.

When the operator operates the numeric keypad 6c to input a destination number, it is checked whether the destination number is registered in the destination number information of any of the re-call management information stored in the magnetic disk device 9. When registered, a guidance message as shown in FIG. 8 is displayed to inform the operator that image information cannot be transmitted to the destination.

Therefore, when another operator attempts to execute image information transmission to a destination that is rejected at an earlier stage, the image information transmission to the desired destination is performed before the image information transmission starts. Can be determined, so that the occurrence of useless call operation can be suppressed to some extent.

By the way, in the above-described embodiment, the present invention is applied to a group 4 facsimile apparatus using ISDN as a transmission line, but the same applies to a group 4 facsimile apparatus using other digital line networks. Thus, the present invention can be applied.

Further, in the above-described embodiment, the group 4 facsimile apparatus is used as the data terminal apparatus, but the present invention can be similarly applied to a case where another data terminal apparatus is used.

In the above-described embodiment, the receiving terminal in the incoming call rejection state notifies the calling terminal of the incoming call rejection release time information. It may be information indicating a time until the state is released. In that case, it is necessary for the calling terminal to appropriately manage the time until the incoming call rejection state is released.

[Effects of the Invention] As described above, according to the present invention, in a control method of a data terminal device having an automatic outgoing / incoming call function, incoming call rejection monitoring for monitoring that an incoming call rejection state has occurred in its own terminal Means, a waiting time storage means for storing a call rejection release waiting time corresponding to each call rejection state, and a call rejection corresponding to the detected call rejection state when the call rejection monitoring means detects the call rejection state. Calculating means for extracting the release waiting time from the waiting time storage means and calculating the incoming rejection release time in addition to the current time; and incoming rejection information storing the incoming rejection release time and incoming rejection state identification information calculated by the calculating means. The receiving device notifies the reception rejection release time when the reception rejection state identification information is stored in the reception rejection information storage unit when the reception is detected. In response to the incoming call rejection, the transmitting device responds to the sending device with the incoming call rejection, and the transmitting device sends all calls to the same destination to which communication is instructed until the incoming call rejection release time included in the response signal. Is stopped, and for the destination in the incoming call rejection state, even if the transmitting device attempts to make a call, the calling operation is not performed, so that there is an effect that useless calling is prevented. In addition, the receiving side determines the release time of the incoming call rejection state, and notifies the transmitting side of the determined release time of the incoming call rejection state. A call operation can be performed, and an effect that an efficient re-call operation can be performed is also obtained.

Further, when the call rejection is responded, the transmitting device stores the call rejection release time and the destination included in the response signal in the call rejection destination storage means, and displays and outputs that the call is a call rejection destination. Thus, the operator on the transmitting side can clearly know the destination in the call rejection state, and therefore, it is possible to prevent an unnecessary call operation from being operated.

Further, when the call rejection is responded, the transmitting device stops all calls to the same destination instructed to communicate until the call rejection release time included in the response signal, and includes the call in the response signal. The incoming call rejection release time and its destination are stored in the incoming call rejection destination storage means, and when a call destination is input, the operation-inputted destination information is stored in the incoming call rejection destination storage means. In some cases, the display indicating that the destination is a call rejection destination is displayed, so that the operator on the transmitting side can clearly know that the destination information input by himself / herself is in a call rejection state, and the operability is improved. Is also good.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a group 4 facsimile apparatus according to an embodiment of the present invention, FIG. 2 is a partial schematic diagram showing an example of an operation display unit, and FIG. 3 (a) is a basic data transmission in ISDN. FIG. 2B is a time chart showing an example of FIG.
FIG. 4A is a time chart showing an example of a procedure in ISDN when a called terminal rejects a call, FIG. 4A is a schematic view showing a basic format of a message for call setup in ISDN, and FIG. FIG. 5C is a schematic diagram illustrating an example of an information element, FIG. 5C is a schematic diagram illustrating an example of an information element of a release completion message, FIG.
FIG. 6 is a flowchart showing an example of processing of the calling terminal, FIG. 7 is a schematic diagram showing an example of recall management information, FIG. 8 is a schematic diagram showing an example of a guidance message, and FIG. It is a flow chart which shows a processing example. 1 ... system control unit, 2 ... system memory, 3 ...
Parameter memory, 6: Operation display unit, 6f: One-touch key, 6h: Liquid crystal display, 7: Call rejection monitoring registration unit, 9: Magnetic disk device, 10: Communication control unit, 11 ...
... ISDN line control unit, 12 ... ISDN interface circuit.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) H04L 12/02 H04M 1/00 H04N 1/32

Claims (3)

(57) [Claims] 1. A method of controlling a data terminal device having an automatic call origination / reception function, comprising: a reception rejection monitoring means for monitoring that a reception rejection state has occurred in its own terminal; A waiting time storage unit storing a rejection release waiting time, and when the incoming call rejection monitoring unit detects an incoming call rejection state,
Calculating means for retrieving the call rejection release waiting time corresponding to the detected call rejection state from the waiting time storage means, and calculating the call rejection release time in addition to the current time; A receiving rejection information storage unit for storing the rejection state identification information, wherein the receiving device notifies the reception rejection release time when the reception rejection state identification information is stored in the reception rejection information storage unit when an incoming call is detected. Responds to the sending device with the incoming call rejection, and when the incoming call rejection is answered, the transmitting device stops all outgoing calls to the same destination indicated by the communication until the incoming call rejection release time included in the response signal A method for controlling a data terminal device. 2. A method for controlling a data terminal device having an outgoing / incoming call function, comprising: an incoming call rejection monitoring means for monitoring that an incoming call rejection state has occurred in its own terminal; A waiting time storage unit storing a release waiting time, and when the incoming call rejection monitoring unit detects an incoming call rejection state,
Calculating means for retrieving the call rejection release waiting time corresponding to the detected call rejection state from the waiting time storage means, and calculating the call rejection release time in addition to the current time; A call rejection information storage means for storing call rejection state identification information; and a call rejection destination storage means for storing a call rejection destination and a call rejection release time of the destination. If the call rejection state identification information is stored in the information storage means, the call rejection is responded to the transmitting device in a state of notifying the call rejection release time, and when the call rejection is responded, the transmitting device responds to the response signal. The incoming call rejection release time and the address thereof are stored in the incoming call rejection destination storage means, and the fact that the incoming call is a call rejection destination is displayed and output. Until the removal time,
A method for controlling a data terminal device, wherein all outgoing calls to the same destination instructed to communicate are stopped. 3. A method for controlling a data terminal device having an outgoing / incoming call function, comprising: an incoming call rejection monitoring means for monitoring that an incoming call rejection state has occurred in its own terminal; A waiting time storage unit storing a release waiting time, and when the incoming call rejection monitoring unit detects an incoming call rejection state,
Calculating means for retrieving the call rejection release waiting time corresponding to the detected call rejection state from the waiting time storage means, and calculating the call rejection release time in addition to the current time; A call rejection information storage unit for storing call rejection state identification information; and a call rejection destination storage unit for storing a call rejection destination and a call rejection release time of the destination. If the call rejection state identification information is stored in the information storage means, the call rejection is responded to the transmitting device while notifying the call rejection release time, and the transmission device responds to the response signal when the call rejection is responded. It stops all calls to the same destination for which communication is instructed until the included call rejection release time, and also includes the call rejection release time and the call rejection time included in the response signal. Is stored in the incoming call rejection destination storage means, and when a call destination is operated and input, and when the operation-inputted destination information is stored in the incoming call rejection destination storage means, the destination is an incoming call rejection destination. A method for controlling a data terminal device, comprising: