JP2003324504A - Radio communication system and communication method used in radio communication system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a communication system which can record long messages from an opposite party by reproducing various types of long answer messages. <P>SOLUTION: This radio communication system is provided with a portable communication device and a personal computer with a microphone for inputting voice and a speaker for outputting voice. A communication method, used in the radio communication decides whether a call from an opposite party, is received to the portable communication device. A voice speech with the opposite party is made by using the microphone and the speaker of the personal computer, when it is decided that a call from the opposite party is received. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a wireless communication system and a call method in the wireless communication system.

[0002]

2. Description of the Related Art With the spread of portable communication devices such as mobile phones in recent years, a call from the portable communication device to a partner via a personal computer, a response message to the partner, and a recording of a message from the partner are recorded. And so on.

In the conventional system, when a telephone call is received from the other party while the other party is not connected to the personal computer, the telephone circuit section provided in the portable communication device has an analog voice signal source as the other party. If it is a digital signal source, if it is a voice signal source, a response message is read from the recording unit provided in the portable communication device and a voice synthesis response is made.

Also, the message of the other party to this,
Alternatively, the telephone circuit unit stores the telephone number in the recording unit provided in the portable communication device. On the other hand, when the telephone circuit unit determines that the other party is a digital signal source such as E-mail, the digital signal received thereafter is stored in the storage unit provided in the portable communication device (see Patent Document 1).

[0005]

[Patent Document 1] Japanese Patent Laid-Open No. 11-155003 (Summary)

[0006]

In the conventional wireless communication system, the recording unit of the portable communication device is used to reproduce the response message and record the message of the other party. However, it is usually extremely difficult to provide a large-capacity storage device in such a small device in terms of volume and cost, and there is a problem that the capacity of the recording unit cannot be easily increased. .

Further, since the telephone circuit section has a calling function activated from a personal computer (hereinafter referred to as a PC), a telephone call can be made to a call destination through the PC.
Calls can be made using a headset connected to the voice input / output jack, but when making a call, the portable communication device and the PC must be connected by wire through the PCMCIA interface. When trying to make a call, it is inconvenient because it is necessary to connect the two.

The present invention has been made in view of the above circumstances, and it is possible to make a call by making a call to the other party even when the portable communication device and the PC are not connected by wire. It is an object to provide a wireless communication system and a call method in such a system.

[0009]

Therefore, according to the first aspect of the present invention, wireless communication is provided, which comprises a portable communication device and a personal computer having a microphone for inputting voice and a speaker for outputting voice. In the call method used in the system, it is determined whether or not there is an incoming call from the other party to the portable communication device, and if it is determined that there is an incoming call from the other party, a voice call with the other party is made to the personal computer. This is a call method characterized by making a call using a microphone and a speaker.

According to the present invention, since the call with the other party can be made without touching the portable communication device, the call can be made even when the personal computer and the portable communication device are present apart from each other. It will be possible.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

<First Embodiment: Response Message Playback / Message Message Recording> FIG. 1 is a block diagram of a portable communication device having a wireless communication interface with a PC.

The telephone circuit section 11 has an automatic reception function. The communication device-side wireless interface 12 is composed of a communication device-side wireless interface control unit 13 and a wireless unit 14, and, for example, infrared IrDA and IE.
It is a wireless interface such as EE802.11 and Bluetooth.

Radio interface controller 1 on the communication device side
3 is located between the telephone circuit unit 11 and the wireless unit 14, and has a role of controlling each part. The wireless unit 14 is a PC
It is for wirelessly exchanging data with the side, and transmits / receives data to / from the wireless unit 24 in FIG.

The telephone circuit unit 11, the communication device side wireless interface 13, and the wireless unit 14 are composed of a CPU and an R.
It is equipped with an AM and performs various operations by the control program transferred to the RAM being executed by the CPU.

Reference numeral 15 is a transmission / reception antenna connected to the telephone circuit unit 11, and 16 is a voice input / output jack connected to the telephone circuit unit 11.

FIG. 2 is a block diagram of a PC having a wireless communication interface. The PC 21 is a general PC. The PC-side wireless interface 22 includes a PC-side wireless interface control unit 23 and a wireless unit 24.

PC side wireless interface control section 23
Is located between the PC 21 and the wireless unit 24 and has a role of controlling each part. The wireless unit 24 is for wirelessly exchanging data with the portable communication device, and transmits and receives data to and from the wireless unit 14 in FIG.

The PC side wireless interface 23 and the wireless section 24 are provided with a CPU and a RAM, and
The CPU executes the control program transferred to M to perform various operations.

The PC 21 and the PC-side wireless interface 22 are connected according to the specifications of the PC-side wireless interface 22, such as a USB (Universal Serial Bus) connection, a PCMCIA interface connection, and an internal bus of the PC. Various connection methods are possible.

FIG. 3 is a flowchart for reproducing the response message and recording the partner message.

First, the telephone circuit section 11 recognizes an incoming call from the other party and automatically makes an incoming call (S11, S12). next,
The telephone circuit unit 11 issues a request to the communication device side wireless interface control unit 13 in order to cause the PC to reproduce the response message, and the communication device side wireless interface control unit 1
3 requests the request via the wireless unit 14 to the wireless unit 24 on the PC side.
(S13).

PC side wireless interface control section 23
Transmits the response message request transmitted via the wireless unit 24 to the PC 21, and the PC 21 takes out the response message recorded in the storage device such as the internal HDD (S1).
4), passing to the wireless unit 14 via the PC-side wireless interface control unit 23 and the wireless unit 24, and the communication device-side wireless interface control unit 13 passing the received response message to the telephone circuit unit 11 (S15), and calling Circuit part 11
Reproduces the response message (S16).

Next, the telephone circuit unit 11 emits a dial tone to start recording the message (S17), and the voice message of the other party input to the telephone circuit unit 11 is transmitted to the communication device side interface control unit 13 and the wireless communication. The message is transferred to the wireless unit 24 on the PC side via the unit 14 (S18), and the PC 21 sends the message to the wireless interface control unit 2 on the PC side.
It is taken out through the storage device 3 and recorded in a storage device such as an HDD (S19). After recording the message, the telephone circuit unit 11 disconnects the line (S20).

FIG. 11 is a flow chart for explaining the flow chart of FIG. 3 for reproducing the reply message and recording the other party's message, which is performed between the public network, the telephone circuit section, the communication device side wireless interface, the PC side wireless interface, and the PC. It is a flowchart of the processing that is performed.

First, an incoming call is received from the public network to the telephone circuit section (S51). When the telephone circuit recognizes the incoming call,
It responds to incoming calls to the public network, that is, to the other party. This establishes a public line connection with the other party (S52).

Next, the telephone circuit section makes a wireless connection request to the wireless interface on the communication device side (S53).

Upon receiving the wireless connection request, the wireless interface on the communication device side sends a start notification of a wireless connection procedure to the wireless interface on the PC side to enable transmission / reception by wireless connection with the wireless interface on the PC side. S54).

As a result, a procedure for wireless connection is started between the communication device side wireless interface and the PC side wireless interface, and the PC side wireless interface sends a wireless connection procedure end notification to the communication device side wireless interface. By being sent, the wireless connection is established (S55).

When the wireless connection is established, the wireless interface of the communication device sends a wireless connection establishment notification to the telephone circuit section (S56), and the telephone circuit section receives the wireless connection establishment notification, so that a response message request is issued. , To the PC via the communication device side wireless interface and the PC side wireless interface (S57).

The PC receiving the response message request
By extracting the response message recorded in the recording device such as the HDD of the PC and transferring the response message to the public network, that is, the other party, through the wireless interface on the PC side, the wireless interface on the communication device side, and the telephone circuit section. , The other party plays the response message (S5
8).

When the reproduction of the response message is completed, the PC
Sends a dial tone to the public network, that is, the other party, indicating that the recording of the other party's message is started, as in the response message (S59).

The other party receiving this dial tone sends a message to the telephone circuit section, the communication device side wireless interface,
By transferring to the PC via the wireless interface on the PC side, the PC that received the other party's message can send it to the PC.
The data is recorded in a recording device such as the HDD (S60).

Next, a message end notification indicating that the other party's message has ended is sent to the PC via the same route as the message transfer from the other party, and the PC receiving this message end notification records the other party's message. Is completed (S61).

Next, when the telephone circuit section receives a public line disconnection request from the other party for disconnecting the public line from the public network (S62), the telephone circuit section sends a public line disconnection response to the public network, that is, the other party. The public line is disconnected by transmitting to (S63).

Next, the telephone circuit section transmits a wireless disconnection request to the communication device side wireless interface in order to disconnect the wireless connection (S64). The communication device side wireless interface that has received the wireless disconnection request transmits a wireless disconnection procedure start notification to the PC side wireless interface (S65).

As a result, a procedure for disconnecting the wireless connection is started between the communication device side wireless interface and the PC side wireless interface, and the PC side wireless interface sends a wireless disconnection procedure end notification to the communication device side wireless interface. Is sent, the wireless connection is disconnected (S66).

When the wireless connection is disconnected, the wireless interface on the communication device side transmits a wireless disconnection notification to the telephone circuit section, so that the telephone circuit section that has received the wireless disconnection notification indicates that the wireless connection has been disconnected. Recognize (S67). In this way, the response message is reproduced and the other party's message is recorded.

According to the present embodiment, by using the response message recorded in the PC, it is possible to prepare many response messages without depending on the capacity of the RAM of the mobile communication terminal. Become.

By recording the message of the other party in the PC, many messages can be recorded without depending on the capacity of the RAM of the portable communication device.

<Second Embodiment: Automatic PC Activation> FIG. 4
Is a flowchart for reproducing a response message and recording a partner message when the PC is not activated.

Regarding S11 to S20, S1 in FIG.
Similar to steps 1 to S20, steps S21 to S23 are newly added between the steps S13 and S14.

When the telephone circuit unit 11 requests a response message from the PC side (S13), the PC that receives the response message
The side wireless interface control unit 23 determines whether the PC is activated (S21).

If it is determined that the PC is running, the process proceeds to S14 to retrieve the response message. If it is determined in S21 that the PC has not started up, the PC-side wireless interface control unit 23 performs the process of starting up the PC (S22), and waits for the PC to start up (S23).

The term "until the PC starts" means that the response message recorded in the PC can be taken out. When the PC is activated, the process proceeds to S14 and the process of extracting the response message from the PC is performed.

By doing so, even if the PC is not started, the PC is started from the wireless communication terminal side, and P
The response message can be reproduced by C. Note that P
Assuming that the time required to activate C is long, the process proceeds to step S21 at the time of the incoming call to the call section in S11, and the automatic incoming call is performed after the PC is activated (S12). It is also possible to proceed to the step of extracting the response message (S14).

FIG. 12 is a block diagram of a PC capable of confirming and starting the PC and a PC wireless interface.

Reference numeral 60 is a general PC. Reference numeral 61 denotes a PC-side wireless interface control unit, which is the wireless unit 2 in FIG.
4 and the interaction with the PC 60 are processed.

Reference numeral 62 denotes a data line, which is used when exchanging various data between the PC 60 and the PC side wireless interface control section 61. This is the PC in Figure 2
This is the same as the connection between the PC 21 and the wireless interface controller 23 on the PC side.

The control line 63 is for controlling the PC 60 from the PC side wireless interface control section 61, and
It is possible to confirm whether the C60 is activated or to activate the PC60 by a signal from the PC-side wireless interface controller 61.

FIG. 13 is a flow chart of the PC activation confirmation and PC activation processing performed between the PC 60 and the PC side wireless interface control section 61, which explains in detail the processing from S21 to S23 of FIG.

The processing here is performed in S57 of FIG.
From the telephone circuit to the communication device side wireless interface, PC
A part where a response message request is sent to the PC via the side wireless interface, and is started when the PC side wireless interface control unit of the PC side wireless interface receives the response message request.

Upon receiving the response message request, the PC side wireless interface control section 61 reads the current activation state of the PC 60 via the control line 63 (S70). PC
The side wireless interface control unit 61 determines whether or not the PC 60 is activated based on the read current activation state (S71).

When it is determined in S71 that the PC 60 is not activated, the PC side wireless interface control section 61 transmits a PC activation signal to the PC 60 via the control line 63 (S72).

In response to the PC start signal, the PC 60 starts the start process. Next, the PC side wireless interface control unit 6
1 is a PC via the control line 63 as in S70 and S71.
The current start-up state of 60 is read (S73), and it is determined whether the PC 60 is started up based on the read current start-up state (S74).

If it is determined in S74 that the PC 60 is running, the PC side wireless interface control unit 6
The response message request is transmitted from 1 to the PC 60 (S75), and the response message request transmitted from the telephone circuit unit in S57 of FIG. 11 reaches the PC.

When it is determined in S71 that the PC 60 is activated, the process proceeds to S75, and the response message request is transmitted from the PC side wireless interface control section 61 to the PC 60.

If it is determined in S74 that the PC 60 is not activated, the process returns to the process of reading the PC activation state in S73 until it is determined that the PC 60 is activated.

After the PC activation signal is transmitted in S72, the processing portions in S73 and S74 are interrupted to the PC side wireless interface control section 61 via the control line 63 when the PC 60 is activated. The notification may be given, and when the PC-side wireless interface control unit 61 receives the interrupt, it is determined that the PC has started, and the process proceeds to S75.

In this way, the PC is automatically started.

<Third Embodiment: Reproduction and Recording of Response Message Corresponding to Caller Number> FIG. 5 is an example of a database showing the relationship between a telephone number, a response message and a recording message.

Reference numeral 30 is a source telephone number list. Three
Reference numeral 1 is a response message list, which is a file name of each response message recorded in the PC. Three
Reference numeral 2 denotes a recorded message list, which is a file name when recording the message of the other party on the PC.

The sender number list 30, the reply message list 31, and the recording message list 32 are paired, and the file name and message of each reply message are assigned to each sender number in the sender number list 30. The file name when recording is supported.

For example, the sender number [1111-11-1]
The file name of the response message corresponding to [111] is [Re
plyMessage01], the file name of the recording message is [Save
Message01].

This database can be freely added by a user interface on a PC or a user interface on a wireless communication terminal,
Can be changed or deleted.

In S13 of FIG. 4, when the response message is requested to the PC side, the telephone number of the caller is transmitted at the same time, and when the response message is taken out from the PC in S14, the telephone number of the caller is displayed. If there is the same telephone number as the caller's telephone number in the database, the response message corresponding to the telephone number is retrieved.

When the message is recorded on the PC in S19, the telephone number of the sender is checked against the database and the message of the other party is recorded in the recorded message file corresponding to the telephone number.

In this way, according to the telephone number of the sender,
By providing a response message, it becomes possible to respond with an individual response message. Also, by allowing the other party's message to be recorded separately according to the telephone number of the caller, it becomes easier to manage the recorded message of the other party.

<Fourth Embodiment: Recording voice using voice encoding means of PC> In S19 of FIG. 4, when a message of the other party is recorded in the PC, for example, in the case of PHS, a call is made. Since voice is encoded at 32 Kbps by ADPCM (Adaptive Differential Pulse Code Modulation), it requires a large storage capacity for recording in spite of good sound quality.

In this case, the audio signal, which has been audio coded by ADPCM at 32 Kps, is not recorded as it is, but is recorded on the PC.
A voice coding method having a higher compression rate than a voice signal of 32 kbps voice coded by ADPCM using the voice coding hardware or the voice coding software described above, for example, a voice code in a mobile phone. It is possible to record more messages for a long time by performing voice encoding and recording using the CELP method or the like used for encoding.

The processing in this case is basically the same as the flowchart shown in FIG.
It replaces the processing shown in.

Specifically, in S18, after transferring the message to the PC side through the wireless interface,
The message is voice-encoded (S19a). Then, this voice coded message is recorded in the recording device of the personal computer (S19b).

Therefore, according to the present embodiment, for example, it is possible to record a voice by using the CELP method or the like which is used for voice encoding in a mobile phone and recording the voice. It is possible to record the message.

<Fifth Embodiment: Voice is Recorded as Characters Using Voice Recognition Unit of PC> In the above fourth embodiment, the voice to be recorded is a voice code having a higher compression rate. It was made possible to record a message for a long time by compressing and recording by the encoding method.
By using the voice recognition function installed in C, the voice to be recorded is converted into characters and recorded, so it is not a voice recording, but the data capacity is greatly reduced when recording a message. It becomes possible to record.

The processing in this case is basically the same as that of the flowchart shown in FIG.
Instead of the process shown in 0.

Specifically, in S18, after transferring the message to the PC side via the wireless interface,
The voice recognition function is used to convert the voice into character data (S19c). Then, the character data indicating the voice is recorded in the recording device of the personal computer (S19).
d).

Therefore, according to the present embodiment, by converting a voice into a character and recording it, it is possible to record a message by significantly reducing the data capacity although it is not a voice recording. It will be possible.

<Sixth Embodiment: Answering Telephone Call by PC> FIG. 6 shows a PC equipped with a microphone and a speaker.
FIG. 3 is a block diagram of a wireless interface.

The PC side wireless interface 42, the PC side wireless interface control section 43, and the wireless section 44 are the same as the PC side wireless interface 22, the PC side wireless interface control section 23, and the wireless section 24, respectively, in FIG.

Here, a microphone 45 and a speaker 46 are newly added to the PC 41. The microphone 45 is for inputting voice to the PC. The speaker 46 outputs the sound reproduced by the PC. In recent years, many PCs are equipped with a sound function as standard, and it is possible to connect a microphone and a speaker to input and output voice.

FIG. 7 is a flow chart when making a call on the PC. First, when the telephone circuit 11 recognizes an incoming call from the other party (S30), the fact is notified to the PC side via the wireless interface (S31).

The PC is displayed on the PC screen 50 as shown in FIG.
By displaying the dialog box 51, the user is asked to confirm the call (S32). Next, it is determined whether the call confirmation button of the dialog box 51 has been pressed (S33). If a certain period of time has passed without pressing the call confirmation button (S34), a response by an answering machine message and a record of the other party's message are recorded. Steps to perform (S3
8 to S45).

If it is determined in S33 that the call confirmation button has been pressed, the call section 11 establishes a connection with the other party (S35), and thereafter the call is started using the speaker and microphone of the PC. Yes (S36).

Specifically, the voice of the other party is transmitted through the telephone circuit section 11 and the communication apparatus side wireless interface 12 to P
Go to the C side wireless interface 42,
The sound is reproduced by using a sound processing unit such as an internal sound card, and the sound is output to the speaker 46.

The voice of the user is the microphone 45.
Through the audio processing unit such as a sound card in the PC, and converted into an audio signal through the wireless interface 42.
Through the wireless interface 12 on the portable device side, and is sent to the other party via the telephone circuit section 11 and the antenna 15.

When ending the call, the PC 41 sends a P
A call disconnection request is issued to the telephone circuit unit 11 via the C-side wireless interface 42 and the communication device-side wireless interface 12 (S37), and the telephone circuit unit 11 receiving the request disconnects the line.

In this way, the call received from the other party to the portable communication device can be received by the operation of only the PC without touching the portable communication device.

For example, when the portable communication device is located away from the PC within the range of wireless communication with the PC, it seems that the PC and the portable communication device are placed in different rooms. In such a situation, even when the user is operating the PC, it becomes possible to answer the call received by the portable communication device.

The telephone circuit unit 11 can be operated by operating the PC.
It is also possible to have the caller make a call and make a call spontaneously.

FIG. 14 is a flow chart showing the step S30 of the case of answering a call using the speaker and the microphone of the PC shown in FIG.
It is a flowchart explaining in more detail from S to S37.

First, an incoming call is received from the public network to the telephone circuit section (S81). When the telephone circuit recognizes the incoming call,
The telephone circuit unit makes a wireless connection request to the communication device side wireless interface (S82).

Upon receiving the wireless connection request, the communication device side wireless interface sends a start notification of the wireless connection procedure to the PC side wireless interface in order to enable transmission / reception by the wireless connection with the PC side wireless interface ( S83).

As a result, the procedure for wireless connection is started between the communication device side wireless interface and the PC side wireless interface, and the PC side wireless interface sends a wireless connection procedure end notification to the communication device side wireless interface. Thus, the wireless connection is established (S84).

When the wireless connection is established, the communication device side wireless interface transmits a call confirmation request to the PC (S85). The PC that received the communication confirmation request is the PC
The call confirmation dialog of FIG. 8 is displayed on the screen, and the user is asked to confirm the call.

If the call confirmation button in the dialog box 51 is pressed, a call start request is sent to the telephone circuit section through the PC side wireless interface and the communication device side wireless interface (S86).

The telephone circuit section which has received the call start request,
It responds to incoming calls to the public network, that is, to the other party. This establishes a public line connection with the other party (S87).

Next, the telephone circuit section, via the communication device side wireless interface and the PC side wireless interface,
A call enable notification is transmitted to the PC (S88). PC
When the call enable notification is received, the call is enabled between the PC and the other party via the public network, and the call dialog 71 of FIG. 15 showing the call is displayed on the PC screen 70.

Further, the other party's voice is transmitted to the PC from the other party via the telephone circuit section, the communication device side wireless interface, and the PC side wireless interface, and the other party's voice is heard in the speaker of the PC.

Further, the voice on the PC side input from the microphone of the PC is transmitted to the other party as voice to the other party via the PC side wireless interface, the communication apparatus side wireless interface, and the telephone circuit section so that the other party can hear it. Become.

When the user presses the disconnect button of the talking dialog 71, the PC sends a call end request to the telephone circuit through the PC-side wireless interface and the communication-device-side wireless interface (S89).

The telephone circuit section that receives the call end request is
A public line disconnection request is sent to the public network, that is, the other party (S90), and the public circuit disconnection response from the public network is received by the telephone circuit unit, whereby the public line is disconnected (S9).
1).

In the call confirmation dialog 51 displayed in S85, if the call confirmation button has not been pressed by the user for a certain period of time, the public line is connected in S2 of FIG. 11, and then in S57. By performing the processing after the response message request, the response message is reproduced and the partner message is recorded.

In this way, a telephone response is made using the microphone and speaker of the PC.

[0104]

As described above in detail, according to the present invention, even when the portable communication device and the PC are not connected by wire, it is possible to make a call to the other party to make a call. A communication system can be provided.

[Brief description of drawings]

FIG. 1 is a block diagram of a portable communication device including a wireless communication interface with a PC.

FIG. 2 is a block diagram of a PC including a wireless communication interface.

FIG. 3 is a flowchart for reproducing a reply message and recording a partner message.

FIG. 4 is a flowchart for reproducing a response message and recording a partner message when the PC is not activated.

FIG. 5 is a database showing the relationship between telephone numbers, response messages, and recorded messages.

FIG. 6 is a block diagram of a PC including a microphone and a speaker and a wireless interface.

FIG. 7 is a flowchart for making a call on a PC.

FIG. 8 is an example of a response confirmation dialog display.

FIG. 9 is a flowchart for explaining an operation when encoding and recording voice.

FIG. 10 is a flowchart for explaining the operation when converting voice into characters and recording the characters.

FIG. 11 is a flowchart illustrating in detail the flowchart of FIG. 3 for reproducing the response message and recording the partner message.

[FIG. 12] PC capable of confirming and activating PC
And a block diagram of a PC wireless interface.

FIG. 13 is a flowchart illustrating in detail the processing from S21 to S23 in FIG.

FIG. 14 is a flowchart illustrating in detail the processing from S30 to S37 in FIG. 7.

FIG. 15 is a diagram showing a dialog during a call.

[Explanation of symbols]

11 ... Telephone circuit section, 12 ... wireless interface on the communication device side, 13 ... Wireless interface control unit on the communication device side, 14 ... Radio section, 15 ... Transmitting / receiving antenna, 16 ... I / O jack, 21 ... Personal computer, 22 ... PC-side wireless interface, 23 ... PC side wireless interface controller, 24 ... radio unit, 30 ... list of source telephone numbers, 31 ... Response message list, 32 ... Record message list, 41 ... Personal computer, 42 ... PC-side wireless interface, 43 ... PC side wireless interface control unit, 44 ... radio unit, 45 ... Microphone, 46 ... speaker, 50 ... screen, 51 ... Dialog box.

Claims (4)

[Claims] 1. A call method used in a wireless communication system comprising a portable communication device and a personal computer having a microphone for inputting voice and a speaker for outputting voice, wherein the other party makes a call to the portable communication device. Is determined, and when it is determined that there is an incoming call from the other party, a voice call with the other party is performed using the microphone and speaker of the personal computer. 2. A wireless communication system comprising a portable communication device and a personal computer having a microphone for inputting voice and a speaker for outputting voice, wherein whether or not there is an incoming call from the other party to the portable communication device. Wireless communication, characterized in that it comprises a means for determining that there is an incoming call from the other party, and means for making a voice call with the other party using the microphone and speaker of the personal computer. system. 3. A call method used in a wireless communication system comprising a portable communication device and a personal computer having a microphone for inputting voice and a speaker for outputting voice, wherein the other party makes a call to the portable communication device. When it is determined that there is an incoming call from the other party, a communication path is established between the portable communication device and the personal computer, and a voice call with the other party is performed. A call method characterized by using a microphone and a speaker of a personal computer. 4. A call method used in a communication system comprising a first mobile device and a second mobile device that communicates with the first mobile device, wherein the first mobile device is different from the first mobile device. When an incoming call is received from a device, a communication path is established between the first mobile device and the second mobile device, and a call with the other device is performed in the second mobile device. Characteristic call method.