JPH09321845A - Information terminal equipment equipped with telephone function and line connection method therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To report that communication is intended while continuing a terminal operation by tentatively connecting a line and attaining a holding state by a holding instruction during a PDA terminal operation and starting the communication at the appropriate break of the terminal operation. SOLUTION: At the time of telephone call termination, call termination signals are inputted from a radio communication control part 2 to the CPU 3 of an information processing control part 1 and calling sound is rung by a sound generator 6. In the state, when a holding switch 10e is pressed, the CPU 3 sends a line connection command to the radio communication control part 2 through a radio communication control part IF 4 at the time of judging that it is during an information terminal operation based on the state of a mode register inside a RAM 9 and a telephone line with a call terminating party is connected. Further, holding sound transmission command signals are successively sent and holding sound is generated and transmitted through a radio part 14. When a communication switch 10c is pressed at the appropriate break, the CPU 3 stops the transmission of the holding sound and performs changeover to a communicable state through a receiver 17 and a transmitter 18 from an audio control part 16.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a PDA (Personal
The present invention relates to an information terminal device having a telephone function, which is a portable information device having a wireless communication function typified by Digital Assistants), and a line connection method thereof.

[0002]

2. Description of the Related Art In recent years, portable information devices such as electronic notebooks having a communication function have been considered, and data processed by the information devices can be transmitted and received via a telephone line. .

Further, recently, there has been considered a portable information device which is provided with a transmitter and a receiver which are composed of a microphone and a speaker and which also functions as a mobile phone.
In a portable information device equipped with such a telephone function, for example, in a state where information processing as a notebook such as input of schedule data and memo data, registration, search processing, etc. is performed,
When an incoming call is received, the user starts the call by interrupting the information processing or starting the call or leaving the call by the incoming call and ending the information processing being operated.

[0004]

However, when the information processing during the operation is interrupted and the call is started, there is an adverse effect such as forgetting the data during the information processing. There is the problem of not knowing whether to restart.

Further, even when the call is started after the information processing during the operation is terminated by leaving the call due to the incoming call and the telephone call is started on the other side due to the absence or the like, the information processing division is bad. Since it cannot be determined whether the call cannot be answered, there is a problem that the other party gives up reading and the call is not performed.

On the other hand, by connecting a telephone line to a personal computer through a modem and performing multitask processing that also functions as a telephone, it is possible to construct an information device having both an information processing function and a telephone function. I can, but
Also in this case, when a call is received during information processing, the information processing is interrupted and the call is started, or the call by the incoming call is left and the information processing being operated is terminated as described above. There is a problem that you have to start the call after waiting.

The present invention has been made in view of the above-mentioned problems. Even if an incoming call is received during operation of an information terminal, there is no adverse effect such as forgetting the data being processed, An object of the present invention is to provide an information terminal device equipped with a telephone function that enables the other party to be notified of the intention of a call while continuing to operate the information terminal, and a line connection method thereof.

[0008]

That is, an information terminal device equipped with a telephone function according to claim 1 of the present invention comprises a call instructing means for instructing a call, a hold instructing means for instructing to hold a call, and information. Terminal operation determining means for determining whether or not the terminal device is being operated, first line connecting means for connecting a telephone line when a call is instructed by the call instructing means in the incoming call state, and in the incoming call state A second step of connecting the telephone line and setting a hold state when the terminal operation determining means determines that the information terminal device is in operation when the hold instruction means instructs the call to be held.
When the telephone line is connected by the first line connecting means to the second line connecting means, or when the telephone line is connected by the second line connecting means and set in the hold state, the call instructing means It is characterized by comprising a call connection means for setting a call state when a call is instructed.

That is, in the information terminal device equipped with the telephone function according to claim 1 of the present invention, when the telephone call is instructed in the incoming state, the telephone line is connected regardless of whether the terminal is being operated. When the call is placed on hold and the call is put on hold while the terminal is in operation and the call is put on hold while the terminal is operating, the call is placed on hold and then the call is placed. Since the call state is set, the line can be connected and put in the hold state for the time being by the hold instruction during the terminal operation, and the call can be started at a point where the terminal operation is separated.

An information terminal device equipped with a telephone function according to claim 2 of the present invention comprises a call instruction means for instructing a call, and a terminal operation determination means for determining whether or not the information terminal device is being operated. When the terminal operation determining means determines that the information terminal device is not being operated in response to an incoming call, when the call is instructed by the call instructing means, a first line connecting means for connecting a telephone line is provided. A second line connecting unit for connecting a telephone line and setting a hold state when the terminal operation determining unit determines that the information terminal device is being operated in response to an incoming call; and the first line. When the telephone line is connected by the connecting means, or when the telephone is instructed by the call instructing means while the telephone line is connected by the second line connecting means and is set in the hold state, the call state is set. Setting And characterized by including a call connection means for.

That is, in the information terminal device equipped with the telephone function according to claim 2 of the present invention, when the call is instructed, the telephone line is connected and the call is made when the terminal is not being operated. When the terminal is in operation when a call is received, the telephone line is automatically connected and put in the hold state. Since the setting is made, when an incoming call is received during the operation of the terminal, the line is connected for the time being and the call is put on hold so that the call can be started at a time when the operation of the terminal is convenient.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a configuration of an electronic circuit of an information terminal device equipped with a telephone function according to an embodiment of the present invention.

This information terminal device has a PHS (Personal Ha
ndyphone System) Battery-powered PD with built-in telephone function
A personal computer assistant (A) (Personal Digital Assistants) for managing personal information such as memo function, schedule function, and address function.
function manager).

The present apparatus comprises an information processing control unit 1 for realizing a notebook function and a wireless communication control unit 2 for realizing a telephone function. In the information processing control unit 1, 3 is CP
The U section (main control section) controls the entire apparatus.

A program for controlling the system is a ROM
7 or stored in the RAM 9 and the CPU 3 executes this program to operate each circuit unit. A wireless communication control IF 4 is an interface circuit with the wireless communication control unit 2. Voice and data transmission / reception operations associated with incoming and outgoing operations are performed under the control of the CPU unit 3.

Reference numeral 5 denotes a BEEP sound control section, which is a circuit for generating a sine wave having a designated frequency. Reference numeral 6 denotes a sounding device that sounds a sounding body using this sine wave as an input signal, and the volume can be adjusted by an instruction from the BEEP sound control unit 5.

The ROM 7 stores in advance a system program for controlling the overall operation of this system, and also controls the operation according to various on-board functions such as a memo function, a schedule function, an address function and a telephone function. Subprograms are also stored in advance.

Reference numeral 10 is an input unit, and 11 is an input control unit.
The input unit 10 is an input device for inputting and instructing data, and is, for example, a "mode" switch 10a for selectively switching operation modes for each function, and is operated when making a telephone call. "Call" switch 10b, "call" that is operated when making a call when a call is received
Switch 10c, "off" switch 10d operated when ending a call and disconnecting a telephone line, switch 10d "hold" operated when holding a call or directly holding a call when a terminal is operating A switch 10e and the like are provided, and a pen input section made of a transparent tablet device is provided. The input control unit 11 controls input of data input from the input unit 10.

Reference numeral 8 denotes a message ROM for transmitting to the other party in place of the hold melody sound when the line is connected by the "hold" switch 10e when an incoming call is made while operating the terminal, for example, "Yes XX. A plurality of user-selectable hold message data such as "Please wait for a while while operating the terminal." Is stored in advance.

Reference numeral 12 is a display unit, and 13 is a display control unit.
The display unit 12 is a display device for displaying data, and is composed of, for example, an LCD (Liquid Crystal Display).
The display control unit 13 controls display of data displayed on the display unit 12. Further, here, the pen input area of the input unit 10 and the display unit 12 are integrated, and both display and input (pen input) can be performed on the same screen.

FIG. 2 is a diagram showing a configuration of registers in the RAM 9 provided in the information processing control unit 1 of the information terminal device having the telephone function. In the RAM 9, display data to be displayed on the display unit 12 via the display control unit 13 is expanded as bit map data and written into the display register 9a, a memo function, a schedule function, an address function, a telephone function, and the like. The mode register 9b in which mode data indicating the current operation mode according to the installed function of the telephone is stored, the flag "1" in the incoming state of the telephone, the incoming state register 9c set in the flag "0" in the unincoming state, and the telephone A line status register 9d that is set to a flag "1" when the line is connected and a flag "0" when the line is disconnected, and a notebook that stores various data input by a notebook function such as a memo function, a schedule function, and an address function. A data register 9e and the like are provided.

On the other hand, in the radio communication control unit 2, 14 is a radio unit, which is composed of a circuit for performing reception control and transmission control. The reception control circuit amplifies a radio frequency signal (analog signal) received by the antenna, converts the frequency, and demodulates the signal into a baseband signal. The transmission control circuit modulates the baseband signal, converts the frequency, and then amplifies and transmits the radio frequency signal.

FIG. 3 is a block diagram showing the configuration of an electronic circuit of the communication control unit 15 provided in the wireless communication control unit 2 of the information terminal device having the telephone function. As shown in FIG. 3, the communication control unit 15 includes a baseband unit 30 that performs various digital signal processes, and a wireless control system CPU 31, ROM 32, RAM 33, EEPR that controls these units.
It consists of OM34. Reference numeral 35 denotes an operation system CPU that controls the interface with the information processing control unit 1, and is connected to the CPU unit 3 via the wireless communication control unit IF4 of the information processing control unit 1.

Reference numeral 16 is an audio controller, which is 17,1.
Control between the handset 8 and the baseband unit 30 is performed.
The handset 17 is a speaker that outputs a voice signal from the audio control unit 16, and here also outputs a signal from the BEEP sound control unit 5 during a call. The transmitter 18 is a microphone for inputting a voice signal.

Next, a call incoming control operation in the information terminal device having the telephone function having the above configuration will be described. FIG. 4 is a flowchart showing a first embodiment of the incoming call control processing in the information terminal device equipped with the telephone function.

That is, when an incoming call signal is input from the wireless communication control unit 2 to the CPU unit 3 via the wireless communication control unit 4 of the information processing control unit 1 when receiving an incoming call, the RAM 9
While the flag "1" is set in the incoming call status register 9c therein, the BEEP sound control section 5 generates an incoming call voice signal, and the sounding device 6 sounds a ringing tone (steps S1 → S2).

At this time, in the information terminal device, for example, by a notebook function such as a memory function or a schedule function, regardless of whether or not the terminal is in the process of inputting some information or performing an information search process, the input is performed. When the "call" switch 10c in the unit 10 is pressed, the CPU 3 sets the flag "1" in the line status register 9d in the RAM 9 and the line connection sent to the wireless communication control unit 2 via the wireless communication control unit IF4. A telephone line with the called party is connected by the command signal, and the audio control unit 16 is switched to a call enabled state via the receiver 17 and the transmitter 18 (steps S3 → S4, S5 → S6).

In this way, when a call is received and the line is connected by pressing the "call" switch 10c to start a call, if the terminal operation by the notebook function is in progress, the terminal operation is You need to interrupt and start a call with the called party.

When the "hold" switch 10e in the input section 10 is pressed during a call with the called party, the CPU 3 sends a hold sound transmission command signal to the wireless communication control section 2 via the wireless communication control section IF4. Due to
A hold sound such as a melody sound is generated from the audio control unit 16 and sent from the communication control unit 16 to the wireless telephone line via the wireless unit 14 (steps S6, S10 → S5 → S).
7).

Thus, in the state where the holding tone is being sent to the other party and the telephone line is not disconnected by the other party, that is, in the hold continuation state (steps S7, S).
8 → S9 → S7), and when the "hold" switch 10e is pressed again, the call enabled state is set again (steps S9 → S6).

Thereafter, the "off" switch 10 of the input unit 10
When d is operated to end the call, or the telephone line is disconnected by the other party in the hold continuation state, R
When both the incoming call status register 9c and the line status register 9d in the AM 9 are reset to "0", the incoming call waiting state at the beginning of the incoming call control process is restored (step S10 /
S8 → S1).

On the other hand, in step S2, in the state where the ringing sound is generated in response to the incoming call, the "call" switch 10c in the input unit 10 is not pressed,
When the "hold" switch 10c is directly pressed, it is determined whether or not the information terminal is being operated by the notebook function such as the memo function and the schedule function according to the state of the mode data set in the mode register 9b in the RAM 9. (Steps S2, S3 → S11 → S12).

Here, when the CPU 3 determines that no information terminal operation is performed based on the state of the mode register 9b in the RAM 9, the telephone line is disconnected as long as the called party does not disconnect the telephone line. The ringing process for ringing the incoming call is continuously performed (step S
12 → S13 → S2).

In the ringing state of the incoming call ringing sound, the "call" switch 10c or the "hold" switch 1
Even when none of the switches 0e are pressed, the ringing process for ringing the incoming call is continued unless the called party disconnects the telephone line (step S).
2, S3 → S11 → S13 → S2).

On the other hand, in step S2, in the state where the ringing sound is generated in response to the incoming call, the "call" switch 10c in the input section 10 is not pressed,
When the "hold" switch 10c is directly pressed, the CPU3
When it is determined that the information terminal is being operated by the notebook function such as the memo function and the schedule function based on the state of the mode register 9b in the RAM 9, the CP
The flag "1" is set in the line status register 9d in the RAM 9 by U3, and the telephone line with the called party is connected by the line connection command signal sent to the wireless communication control unit 2 via the wireless communication control unit IF4. , And the same CP
A holding sound such as a melody sound is generated from the audio control unit 16 by a holding sound sending command signal sent from the U3 to the wireless communication control unit 2 via the wireless communication control unit IF4, and the communication control unit 16 sends the holding sound via the wireless unit 14. To the wireless telephone line (steps S2, S3 → S11 → S12 → S1
4).

In this case, the other party is informed that the ringing tone is stopped and the holding tone is sent, and the line is connected and waiting for the time being. The other party does not misunderstand that this is absent and the line is not disconnected, and the information terminal operation processing according to the user operation is continued (steps S15 and S1).
6 → S17 → S15).

When the user finishes the operation of the information terminal at a good break and depresses the "call" switch 10c, the output of the holding sound is stopped, the holding state is released, and the audio control is performed. The state is switched from the unit 16 to the call enabled state via the receiver 17 and the transmitter 18 (steps S17 → S18, S5 → S6).

As a result, it is possible to start a call with the called party without causing a problem such as interrupting the operation of the information terminal and forgetting the data being processed. On the other hand, a "hold" switch 1 according to an incoming call while operating the information terminal
When the other party disconnects the line because it cannot wait while the line connection is held due to the pressing of 0e, both the incoming state register 9c and the line state register 9d in the RAM 9 are reset to "0", and the main incoming call is received. The state of waiting for an incoming call at the beginning of the control process is restored (step S16 → S1).

In the step S14, in the line connection / holding tone sending process by pressing the "holding" switch 10e associated with the incoming call during the operation of the information terminal, the message ROM 8 is not sent but a simple holding melody tone is sent. By sending a hold message that can be selected by the user and is stored in advance, such as "Yes, it is XX. Please wait for a while while operating the terminal." Good.

Therefore, according to the first embodiment of the information terminal device equipped with the telephone function having the above-mentioned configuration, when the information terminal such as the memo function or the schedule function is being operated when the incoming call is received. By directly pressing the "hold" switch 10e, the line connection process and the hold sound transmission process are executed, and the line is connected to the other party and kept waiting without interrupting the operation of the information terminal. Since it is notified that the status is in the state, by pressing the "call" switch 10c with the end of the terminal operation without causing a problem such as forgetting the data during the terminal operation,
You will be able to start a call with the called party.

In the incoming call control processing in the first embodiment of the information terminal device equipped with the telephone function, when an incoming call is received during the operation of the information terminal, the operation of the terminal is continued to connect the telephone line. In this case, the "hold" switch 10e is directly operated to execute the line connection / hold sound transmission process. However, when a telephone call is received while the information terminal is being operated, the above " It is also possible to adopt a configuration in which the line connection / hold sound transmission process is automatically executed without the need to operate the "hold" switch 10e.

FIG. 5 is a flow chart showing a second embodiment of the incoming call control process in the information terminal device equipped with the telephone function. That is, when an incoming call signal is input from the wireless communication control unit 2 to the CPU unit 3 via the wireless communication control unit 4 of the information processing control unit 1 upon receiving an incoming call, the RAM
The flag "1" is set in the incoming call status register 9c in 9 and the information terminal is being operated by the notebook function such as the memo function and the schedule function according to the status of the mode data set in the mode register 9b in the RAM 9. Is determined (step S1 → S2).

If the CPU 3 determines based on the state of the mode register 9b in the RAM 9 that no information terminal operation is performed, the BEEP sound control unit 5 outputs an incoming call voice. A signal is generated and a ringing tone is emitted by the sounding device 6 (step S2).
→ S3).

When the "call" switch 10c in the input unit 10 is depressed, the CPU 3 sets the flag "1" in the line status register 9d in the RAM 9 and the wireless communication control unit IF4. Two
The telephone line to the called party is connected by the line connection command signal sent to the telephone, and the audio control unit 16 is switched to the call enabled state via the receiver 17 and the transmitter 18 (steps S4 → S6, S7 → S8). ).

In step S3, if the "call" switch 10c is not pressed while the ringing tone accompanying the incoming call is sounded, the incoming call is received unless the called party disconnects the telephone line. The ringing process of the accompanying ringing tone is continued (steps S4 → S5 → S).
3).

When the "hold" switch 10e in the input unit 10 is pressed during a call with the called party, the CPU 3 sends a hold sound transmission command signal to the wireless communication control unit 2 via the wireless communication control unit IF4. Due to
A hold sound such as a melody sound is generated from the audio control unit 16 and sent from the communication control unit 16 to the wireless telephone line via the wireless unit 14 (steps S8, S12 → S7 → S).
9).

In this way, in the state where the holding tone is being sent to the other party of the call and the telephone line is not disconnected by the other party of the call, that is, in the hold continuation state (steps S9, S).
10 → S11 → S9) and the “hold” switch 10e is pressed again, the call-enabled state is switched again and set (steps S11 → S8).

After that, the "off" switch 10 of the input unit 10
When d is operated to end the call, or the telephone line is disconnected by the other party in the hold continuation state, R
When both the incoming call status register 9c and the line status register 9d in the AM 9 are reset to "0", the incoming call waiting state at the beginning of the incoming call control process is restored (step S12 /
S10 → S1).

On the other hand, in step S2, when the flag "1" is set in the incoming call status register 9c in the RAM 9 in response to the incoming call, the CPU 3 determines based on the status of the mode register 9b in the RAM 9 For example, when it is determined that the information terminal is being operated by the notebook function such as the memo function and the schedule function, the CPU 3 sets the flag "1" in the line status register 9d in the RAM 9 and the wireless communication control unit. The telephone line with the called party is connected by the line connection command signal sent to the wireless communication control unit 2 via the IF4, and the hold tone sent from the CPU 3 to the wireless communication control unit 2 via the wireless communication control unit IF4. The audio control unit 16 is controlled by the transmission command signal.
A hold sound such as a melody sound is generated from the communication control unit 16
Is transmitted to the wireless telephone line via the wireless unit 14 (steps S2 → S13, S14).

Along with this, the BEEP sound control section 5 generates an incoming call voice signal, and the sounding device 6 produces a ringing sound (step S15). In other words, when an incoming call is received and the user is operating the information terminal, the telephone line with the called party is automatically connected and switched to the hold state. When the ringing tone is stopped and the hold tone is transmitted, it is informed that the line is connected and kept waiting for the time being.

Therefore, the other party will not misunderstand that this is absent and the line will not be disconnected.
The ringing of the ringing tone and the information terminal operation processing according to the user operation are continued (steps S16, S17 → S18 → S)
14, S15, S16).

When the user finishes the operation of the information terminal at a good break and presses the "call" switch 10c, the sending of the holding sound is stopped and the holding state is released, and the audio control is performed. The state is switched from the unit 16 to the call enabled state via the receiver 17 and the transmitter 18 (steps S18 → S19, S7 → S8).

As a result, it is possible to start a call with the called party without causing a problem such as interruption of the operation of the information terminal and forgetting the data being processed. On the other hand, in the automatic line connection hold state in response to an incoming call during the operation of the information terminal, when the other party disconnects the line without waiting, both the incoming call state register 9c and the line state register 9d in the RAM 9 become "0". It is reset and returned to the incoming call waiting state at the beginning of the incoming call control process (step S17).
→ S1).

In the step S14, in the automatic line connection / holding tone sending process associated with an incoming call while operating the information terminal, not just the holding melody tone is sent, but it is stored in the message ROM 8 in advance, for example. "Yes x
It is ×. Please wait for a while while operating the terminal. By transmitting a user-selectable hold message such as “”, the intention of holding the call may be surely transmitted to the other party.

Therefore, according to the second embodiment of the information terminal device equipped with the telephone function having the above-mentioned configuration, when an information terminal such as a memo function or a schedule function is being operated when a call is received. Automatically executes the line connection process and the hold tone output process, without interrupting the operation of the information terminal,
Since the other party is notified that the line is connected and waiting for the time being, there is no problem such as forgetting the data while operating the terminal,
By pressing the "call" switch 10c when the terminal operation is completed, it becomes possible to start a call with the called party.

In each of the first and second embodiments, the "call" provided in the input unit 10
Each switch such as the switch 10c, the "off" switch 10d, and the "hold" switch 10e is a hardware key, a key that can be fixedly input with a transparent tablet device, or a key that is displayed in response to an incoming call. It may be either.

[0057]

As described above, according to the information terminal device equipped with the telephone function according to claim 1 of the present invention, whether or not the terminal is being operated when the call is instructed in the incoming state. The telephone line is connected regardless of whether the telephone line is set to the call state, or when the call is put on hold during the terminal operation while the terminal is operating, the telephone line is connected and set to the hold state. , When a call is instructed, the call status is set, so during the operation of the terminal, the call is put on hold for the time being by connecting the line so that the call can be started at a convenient terminal operation. become.

According to the information terminal device equipped with the telephone function according to claim 2 of the present invention, the telephone line is connected when the call is instructed when the terminal is not being operated when the call is received. When the terminal is in operation when a call comes in, the telephone line is automatically connected and put in the hold state.After that, if a call is instructed, the call is Since the state is set, when an incoming call is received during the operation of the terminal, the line is connected for the time being and the call is put on hold so that the call can be started at a point where the terminal operation is convenient.

Therefore, even if an incoming call is received during the operation of the information terminal, there is no harmful effect such as forgetting the data being processed, and while the operation of the information terminal is continued, the other party can receive the call. It becomes possible to inform that there is an intention.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of an electronic circuit of an information terminal device equipped with a telephone function according to an embodiment of the present invention.

FIG. 2 is a diagram showing a configuration of a register in a RAM included in an information processing control unit of an information terminal device equipped with the telephone function.

FIG. 3 is a block diagram showing a configuration of an electronic circuit of a communication control unit included in a wireless communication control unit of the information terminal device having the telephone function.

FIG. 4 is a flowchart showing a first embodiment of an incoming call control process in the information terminal device equipped with the telephone function.

FIG. 5 is a flowchart showing a second embodiment of an incoming call control process in the information terminal device equipped with the telephone function.

[Explanation of symbols]

 1 ... Information processing control section, 2 ... Wireless communication control section, 3 ... CPU section, 4 ... Wireless communication control section IF, 5 ... BEEP sound control section, 6 ... Sound generator, 7 ... ROM, 8 ... Message ROM, 9 ... RAM, 9a ... Display register, 9b ... Mode register, 9c ... Incoming status register, 9d ... Line status register, 9e ... Notebook data register, 10 ... Input part, 10a ... "Mode" switch, 10b ... "Calling" switch, 10c ... "Call" switch, 10d ... "Off" switch, 10e ... "Hold" switch, 11 ... Input control part, 12 ... Display part, 13 ... Display control part, 14 ... Radio part, 15 ... Communication control part, 16 ... audio control unit, 17 ... receiver, 18 ... transmitter.

Claims (4)

[Claims] 1. A call instructing means for instructing a call, a hold instructing means for instructing to hold a call, a terminal operation determining means for determining whether or not an information terminal device is being operated, and a call instruction in the incoming state. First line connecting means for connecting a telephone line when a call is instructed by the means, and the information terminal by the terminal operation determining means when the call holding is instructed by the hold instructing means in the incoming state. When it is determined that the device is being operated, a second line connecting means for connecting the telephone line and setting the telephone line in a hold state, and a case where the telephone line is connected by the first line connecting means, or A call connection means for setting a call state when a call is instructed by the call instruction means while the telephone line is connected by the second line connection means and is set in the hold state. Equipped with the information terminal device a telephone function to butterflies. 2. A call instructing means for instructing a call, a terminal operation determining means for determining whether or not the information terminal device is being operated, and a terminal operation determining means for receiving an incoming call unless the information terminal device is being operated. If it is determined, when the call is instructed by the call instructing means, the first line connecting means for connecting the telephone line and the terminal operation determining means in response to the incoming call are operating the information terminal device. If it is determined that the telephone line is connected by the second line connection means for connecting the telephone line and setting the telephone line to the hold state, or if the telephone line is connected by the first line connection means, or the second line connection A telephone function including a call connection means for setting a call state when a call is instructed by the call instruction means in a state where a telephone line is connected by the means and is set in a hold state. The information terminal apparatus. 3. A step of connecting a telephone line when a call is instructed in the incoming call state, and a telephone call when the information terminal device is being operated when the call hold is instructed in the incoming call state. A step of connecting the line and setting it in a hold state, and a case where a telephone line is connected in response to the call instruction in the incoming state, or a telephone line is connected in the hold state in response to an instruction to hold the call in the incoming state The method of connecting a line to an information terminal device having a telephone function, comprising the step of setting a call state when a call is instructed in the state of being set to. 4. A step of connecting a telephone line when a call is instructed, when the information terminal device is not being operated when the incoming call is received, and a case where the information terminal device is being operated when the incoming call is received. Is a step of connecting the telephone line and setting it in a hold state, and when the telephone line is connected while the information terminal device is not operating due to the incoming call, or the telephone line is connected while the information terminal device is operating due to the incoming call. And a call is instructed in the state of being set to the hold state, the step of setting to the call state is included, and a line connection method of an information terminal device equipped with a telephone function.