JP2003158574A - Voice communication device, voice communication system, voice communication control method, storage medium, and program - Google Patents

Abstract

(57) [Summary] [Problem] Whether a voice call is made by VoDSL communication or a voice communication is made by POTS communication, it is possible to perform voice communication with a common handset, thereby reducing the economic burden. A voice communication device, a voice communication system, a voice communication control method, a storage medium,
And programs. SOLUTION: It is possible to simultaneously perform both POTS communication in a voice band and VoDSL communication in a frequency band different from the voice band using the Internet network through the same subscriber line. VoDSL devices that can partially multiplex audio signals are compatible with audio signals for POTS communication.
an analog switch 115 for switching between audio signals multiplexed in a part of the DSL communication, a central processing unit 118 for controlling a common handset 116 to make a call possible using any of the audio signals. Is provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a voice communication device, a voice communication system, a voice communication control method, a storage medium, and a program, and particularly to voice band communication for communicating in a voice band and a frequency band different from the voice band. It is possible to perform both high-speed data communication using the Internet network at the same time using the same subscriber line, and it is possible to multiplex voice signals to a part of the high-speed data communication.
The present invention relates to a voice communication device, a voice communication system, a voice communication control method, a storage medium, and a program suitable when applied to an rDSL device.

[0002]

2. Description of the Related Art First, the background leading to the present invention will be described before describing the prior art. Some technologies for voice communication over the Internet have already been put to practical use. Voice communication technology via the Internet network is based on ITU (Internat
8Kbit standardized by the ional Telecommunication Union)
G.729 compressed with / S and G.7 compressed with 6.3 Kbit / s
23 and the like are used to mutually implement compression / expansion devices for voice communication. The reason why this kind of voice communication is possible is
This is because the network for accessing the Internet network has a narrow band, so that the band is not monopolized.

In recent years, the widening of the bandwidth of the Internet network has been remarkable. Increasing bandwidth of the Internet network is gradually being established in Japan. In particular, access technology using ADSL (Asymmetric Digital Subscriber Line: technology for high-speed data transmission using existing copper wire (metallic line) telephone subscriber line) can utilize the currently installed metallic line. It has received a great deal of attention because it enables transmission of several megabits.

Originally, ADSL communication was intended for data communication, but a technique for multiplexing digitalized voice on a part of data and performing voice communication on the Internet network is about to start up. ADSL communication can secure a bandwidth of several megabits / s, so it is not necessary to compress the audio.
Enables voice communication over the Internet without changing Kbit / s PCM (Pulse Code Modulation). It is expected that the recommendation for transmitting and receiving voice signals by this ADSL communication will be made a recommendation by the ITU within a year or two. When the international standard is recommended, it is expected that this communication system will spread all over the world.

By the way, a conventional key telephone device is characterized in that a plurality of lines (n) are shared by more telephones (m). Such a system has n <
By setting m, the line was exchanged and the line efficiency was improved. In other words, by increasing the traffic of the lines with a large number of telephones, the resource of the small number of lines is effectively utilized. Furthermore, these systems perform physical circuit switching. Also the so-called LAN
The telephone device also has the same concept as the above-mentioned button telephone device, and aims at efficiently exchanging voices by performing voice compression or the like to effectively utilize limited line resources. Furthermore, devices or the like for exchanging voice are generally not configured. For these reasons, the purpose of the button telephone device or the LAN telephone device is significantly different from the purpose of the present invention described later.

FIG. 11 shows a method of realizing voice communication via the Internet using the currently considered ADSL communication. In FIG. 11, reference numeral 901 is the currently considered AD
A device that performs voice communication by SL communication, and 902 is voice band communication
Telephone line for ADSL communication, 903 for voice band communication and ADSL
POTS (Plain Old Telephone Serv) that separates communication bands
ice) splitter, 904 is a DMT (Discret for performing ADSL communication
e Multi Tone modulation) modem, 905 Ethernet (registered trademark) controller, 906 CODEC (COder-DECoder) that performs digital-analog conversion, 907 SLIC (Subscriber Line) that supplies current to the telephone
Interface Controller), 908 is a central processing unit that controls the entire device, 909 is a PC (Personal Computer) that sends and receives data by ADSL communication, and 910 is a telephone that performs voice communication via the Internet network by ADSL communication, 9
Reference numeral 11 is a telephone that performs voice communication in the conventional voice band.

The PC 909 is an Ethernet (registered trademark) controller 905 when transmitting and receiving data by ADSL communication.
DMT modem 904, POTS splitter 903, telephone line 9
Access the Internet via route 02. Also,
The operation of the telephone 910 performing voice communication via the Internet network by ADSL communication will be described. The voice of the telephone 910 is SL
The IC907 performs 2-4 line conversion, and the CODEC 906 converts analog signals into digital signals. The voice signal converted into the digital signal is sent to the PC 909 by the DMT modem 904.
The data signal is multiplexed with the POTS splitter 903 and is transmitted to the Internet network by the route of the POTS splitter 903 and the telephone line 902. On the other hand, when performing voice communication in the conventional voice band, POTS
Since the voice band communication and the ADSL communication band are separated by the splitter 903, the telephone 911 is directly connected to the telephone line and is independent of the DMT modem 904. Therefore, a voice call is made using the telephone 911 different from the telephone 910 that performs voice communication via the Internet network by ADSL communication.

[0008]

However, the conventional example described above has the following problems. 1. When performing voice communication with the conventional configuration as shown in FIG. 11, it is necessary to prepare two telephones, which imposes a heavy financial burden. That is, it is the same as preparing two telephones in the home, and two telephones are often unnecessary except in the case of a two-family home, a house with a store, and the like. 2. Wiring around the telephone is complicated because there are two telephones, which is not preferable in terms of safety and is unsightly in appearance. 3. When using a cordless telephone, radio wave interference is severe, which may cause a reduction in reach and noise. 4. When receiving a call, it is difficult to immediately know which one of the two phones is ringing, so it takes time to answer. 5. When selecting whether to perform voice communication in the conventional voice band or ADSL communication at the time of calling,
We must think based on various information.

The present invention has been made in view of the above points, and even when a voice call is made by VoDSL communication, the P
Even when performing voice communication by OTS communication, it is possible to perform voice communication with a common handset, reduce the economic burden, and eliminate the complexity of wiring. A first object is to provide a communication control method, a storage medium, and a program.

Further, according to the present invention, by configuring a current supply circuit to the telephone, it is possible to commonly use an external telephone for voice communication by VoDSL communication and voice communication by POTS communication. A second object of the present invention is to provide a voice communication device, a voice communication system, a voice communication control method, a storage medium, and a program capable of performing the above.

Further, the present invention automatically selects VoDSL communication or POTS communication, thereby eliminating the need to check whether VoDSL communication or POTS communication is selected before calling. A third object is to provide a system, a voice communication control method, a storage medium, and a program.

Further, according to the present invention, it is possible to immediately determine which route of the VoDSL communication and the POTS communication is the incoming call by distinguishing the ringing tone of the VoDSL communication from the ringing tone of the POTS communication. A fourth object is to provide a voice communication device, a voice communication system, a voice communication control method, a storage medium, and a program.

[0013]

To achieve the above object, the present invention provides both voice band communication for communicating in the voice band and high-speed data communication for communicating using the Internet network in a frequency band different from the voice band. A voice communication device capable of simultaneously performing voice communication via the same subscriber line and multiplexing a voice signal in a part of the high-speed data communication. And a voice signal switching means for switching between a voice signal multiplexed in a part of the high-speed data communication, and a common handset even when a call is made using any of the voice signals switched by the voice signal switching means. It is characterized by having a call control means for controlling to enable the call.

Further, according to the present invention, both voice band communication for communicating in the voice band and high speed data communication for communicating using the Internet network in a frequency band different from the voice band are simultaneously performed through the same subscriber line. And a voice communication device capable of multiplexing a voice signal in a part of the high-speed data communication, the call line switching a call line on which direct current is superimposed on a telephone connected to the outside. A voice signal for performing the voice band communication and a voice signal multiplexed with a part of the high-speed data communication are used to switch the call line by the switching unit and the call line switching unit. In the case where a telephone call is made by using the telephone, a call control means is provided for controlling the telephone call to be shared.

The present invention also provides a voice communication device on the calling side according to any one of claims 1 to 20, and claim 1.
20. A communication system capable of simultaneously performing both the voice band communication and the high-speed data communication with the called-side voice communication device according to any one of 20 to 20 using the same subscriber line. It is characterized by

Further, according to the present invention, both voice band communication for communicating in the voice band and high speed data communication for communicating using the Internet network in a frequency band different from the voice band are simultaneously performed through the same subscriber line. A voice communication control method which is applicable to a voice communication device capable of multiplexing a voice signal in a part of the high-speed data communication,
Using a voice signal switching step of switching a voice signal in the case of performing the voice band communication and a voice signal multiplexed in a part of the high-speed data communication, and using any of the voice signals switched in the voice signal switching step. The present invention is characterized by having a call control step of performing control so that a call can be made with a shared handset even when a call is made.

Further, according to the present invention, both voice band communication for communicating in the voice band and high speed data communication for communicating using the Internet network in a frequency band different from the voice band are simultaneously performed through the same subscriber line. A voice communication control method which is applicable to a voice communication device capable of multiplexing a voice signal in a part of the high-speed data communication,
A call line switching step of switching a call line on which direct current is superimposed on a telephone connected to the outside, and a voice signal when performing the voice band communication by switching the call line in the call line switching step. And a call control step of performing control to enable a call on the shared telephone even when a call is made by using any one of the voice signals multiplexed in a part of the high-speed data communication. To do.

Further, according to the present invention, both voice band communication for communicating in the voice band and high speed data communication for communicating using the Internet network in a frequency band different from the voice band are simultaneously performed through the same subscriber line. And a computer-readable storage medium that stores a program for executing a voice communication control method applied to a voice communication device capable of multiplexing a voice signal in a part of the high-speed data communication. The voice communication control method is switched between a voice signal switching step of switching between a voice signal for performing the voice band communication and a voice signal multiplexed in a part of the high-speed data communication, and a voice signal switching step. A call control step of performing control so that a call can be made using a common handset when making a call using any of the above audio signals. And wherein the Rukoto.

Further, according to the present invention, both voice band communication for communicating in the voice band and high speed data communication for communicating using the Internet network in a frequency band different from the voice band are simultaneously performed through the same subscriber line. And a computer-readable storage medium that stores a program for executing a voice communication control method applied to a voice communication device capable of multiplexing a voice signal in a part of the high-speed data communication. In the voice communication control method, a call line switching step of switching a call line on which a direct current is superposed on a telephone connected to the outside, and a call line switching step of switching the call line, When making a call using any one of the voice signal for communication and the voice signal multiplexed in a part of the high-speed data communication Oite also characterized by having a call control step of performing control that enables calls shared the phone.

Further, according to the present invention, both voice band communication for communicating in the voice band and high-speed data communication for communicating using the Internet network in a frequency band different from the voice band are simultaneously performed through the same subscriber line. And a program supplied to a voice communication device capable of multiplexing a voice signal in a part of the high-speed data communication, wherein the voice signal and the high-speed data communication in the voice band communication are performed. A voice signal switching step for switching a voice signal that is partially multiplexed, and a control that enables a call by a shared handset even when a call is made using any of the voice signals switched in the voice signal switching step And a call control step for performing.

Further, according to the present invention, both voice band communication for communicating in the voice band and high speed data communication for communicating using the Internet network in a frequency band different from the voice band are simultaneously performed through the same subscriber line. And a program supplied to a voice communication device capable of multiplexing a voice signal in a part of the high-speed data communication, in which direct current is superposed on a telephone connected to the outside. A call line switching step for switching the line, and a voice signal for performing the voice band communication by switching the call line in the call line switching step, and any one of the voice signals multiplexed in a part of the high-speed data communication. And a call control step of performing control so that a call can be made on the shared telephone even when a call is made using the voice signal.

[0022]

DESCRIPTION OF THE PREFERRED EMBODIMENTS First, the outline of the present invention will be described.
INDUSTRIAL APPLICABILITY The present invention makes a telephone that makes a voice call by ADSL communication and a telephone that makes a voice communication in a conventional voice band in common, and enables a voice call by one telephone in either route.
It distinguishes the incoming signal when making a voice call by ADSL communication from the incoming signal when making a voice communication in the conventional voice band, and it is possible to immediately determine which route is the incoming call. is there. Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[First Embodiment] First, POTS communication and Vo
Explain the difference of ice Over DSL communication. Performing voice communication in a voice band using a frequency band of 4 kHz or less in a conventional telephone line is called POTS communication in the present embodiment. Of course, since facsimile signals are also transmitted and received in the conventional voice band, communication is possible. In ADSL communication, data communication is performed using a frequency band of 4 kHz or higher, which is higher than the frequency band. In the present embodiment, voice over DSL (hereinafter referred to as VoDS) is used to perform voice communication by using the Internet network by multiplexing a voice signal on a part of the ADSL data communication.
L) Call it communication.

In the first embodiment of the present invention, in a device capable of operating VoDSL communication, a VoDSL (hereinafter referred to as VoFAX) device with a built-in facsimile using VoDSL communication by ADSL communication using a common handset With reference to FIGS. 1 to 5, description will be given of operations when voice communication (VoDSL communication) is performed via the Internet network and when voice communication (POTS communication) is performed using a conventional voice band. Regarding the constituent elements in each drawing, the same constituent elements are shown if the reference numerals of the constituent elements are the same even if the drawings are different.

FIG. 1 shows a Vo according to the first embodiment of the present invention.
It is a block diagram which shows the structure of a DSL apparatus. In FIG. 1, a facsimile device (VoFAX device) 101 is a device installed in a house that is compatible with both VoDSL communication and POTS communication. A personal computer (hereinafter referred to as a PC) 102 is a device that accesses a server on the Internet network and transmits / receives data. The telephone line 103 connects the VoFAX device 101 and the facility of the station building. POTS splitter 10
A device 4 separates a POTS communication signal from a VoDSL communication signal and an ADSL communication data signal. DMT modem 10
Reference numeral 5 is a device for transmitting and receiving data signals for ADSL communication and voice signals for VoDSL communication. For convenience of drawing, an analog front end, a driver receiver, etc. are omitted.

Ethernet (registered trademark) controller 1
06 indicates the data of the server of the Internet network on the PC 102
It is a device used when transmitting and receiving. Line termination unit 10
Reference numeral 7 closes the direct current of the telephone line 103 when performing POTS communication. The incoming call detection unit 108 detects an incoming call when an incoming call is received in POTS communication. The FAX modem 109 is a device that transmits / receives a modem signal in the voice band during facsimile communication in POTS communication. The printer 110 prints out the facsimile data received by the FAX modem 109. Scanner 111
Is for scanning an original at the time of facsimile transmission. The oscillator circuit 112 creates a ring tone when there is an incoming call in POTS communication and VoDSL communication. The speaker 113 outputs the ringing tone created by the oscillation circuit 112.

The key input unit 114 is for inputting the telephone number of the other party when making a call. The analog switch 115 switches the communication path of the audio signal when performing POTS communication and VoDSL communication. The handset 116 is commonly used for both POTS communication and VoDSL communication. Speech network 11
Reference numeral 7 controls the voice in the POTS communication. The central processing unit 118 is a device that controls the entire VoFAX device 101, and executes the processes shown in the flowcharts of FIGS. 2 and 3 based on a control program. CODEC119 is V
o Digital-to-analog conversion of audio signals is performed during DSL communication. The selection signal transmission unit 120 uses the PSTN switching network 41.
1 (see FIG. 5), the selection signal of the other party is transmitted.

The VoFAX device 402 on the calling side (see FIG. 5) also includes the above-described components like the VoFAX device 101 on the called side. In the present embodiment, for convenience,
Components of VoFAX device 402 on the calling side and VoFAX on the called side
The components of the device 101 will be denoted by the same reference numerals.

FIG. 4 shows the VoFAX device 101 and the VoFAX device 402.
FIG. 3 is a diagram showing a detailed configuration of an analog switch 115 provided in each. In FIG. 4, the analog switch 115 is
It has a plurality of receiving lines, transmitting lines and control lines. Reference numeral 301 denotes a POTS communication reception line connected to the speech network 117. Reference numeral 302 denotes a POTS communication transmission line connected to the speech network 117. Reference numeral 303 is a reception line of VoDSL communication connected to the CODEC 119. Reference numeral 304 denotes a VoDSL communication transmission line connected to the CODEC 119. A reception line 305 is connected to the handset 116. 306 is a transmission line connected to the handset 116. 307 is
It is a control line from the central processing unit 118.

FIG. 5 is a block diagram showing the structures of the calling side and the called side. In FIG. 5, 401 is the VoFA of the calling side.
It is a PC connected to the X device (VoDSL device) 402. 40
2 is a VoFAX device on the calling side. 403 is V of the calling side
This is the entire station building connected to the FAX machine 402. Four
Reference numeral 04 is a telephone line that connects the station building and the VoFAX device 402. A POTS splitter 405 separates a POTS communication signal, a VoDSL communication signal, and an ADSL communication data signal. Reference numeral 406 is a DSLAM for transmitting and receiving data signals for ADSL communication with the Internet network 412. A voice signal 407 is a PSTN (Public S
witched telephone network) is a voice gateway that transmits and receives to and from the exchange 408.

Reference numeral 409 is a general telephone directly connected to the PSTN switching network 411. 410 is also the PSTN switching network 4
11 is a facsimile device directly connected to 11. 412
Is an internet network. A server 413 is connected to the internet 412. Reference numeral 414 is the entire device of the called station. Entire device in the called station 4
Since the configuration of 14 is the same as the configuration of the entire device 403 in the station on the calling side, description thereof will be omitted. 101, 102, 10
3 is the same as the constituent elements in FIG.

Next, the operation of the first embodiment configured as described above will be described in detail with reference to FIGS. 2 and 3 are flowcharts showing the operation in the first embodiment. The processing on the calling side in this flowchart is executed by the central processing unit 118 of the VoFAX device 402 on the calling side based on the control program, and the processing on the called side in this flowchart is performed by the VoFAX on the called side.
The central processing unit 118 of the apparatus 101 executes based on the control program.

The operation starts in step S201 of FIG. In the VoFAX device 402 on the calling side, the telephone number of the other party with which voice communication is performed, that is, the VoFAX device 101 on the called side is input by the key input unit 114 (step S202). For the entered telephone number, the calling side VoFAX device 4
VoDSL for voice communication in the central processing unit 118 of 02.
Determine whether to use communication or POTS communication. This is because it is more efficient to register the telephone numbers of the called parties before and use POTS communication or VoDSL communication for each called telephone number, which communication method is used. By registering whether it is the target, it is judged from the registered data (step S203). In this case, since VoDSL communication uses the Internet network, the communication charge is naturally cheaper. For this reason, when the data to be registered is a partner who can use both POTS communication and VoDSL communication, generally VoDSL communication is set to the default.

As a result of the above judgment, when it is judged that the communication can be made only by the POTS communication (YES in step S203), the VoFAX device 402 on the calling side selects the telephone number input from the key input unit 114 as the selection signal transmission unit 120. In step S204. The transmitted selection signal is transmitted from the telephone line 404 to the POTS splitter 40 of the station device 403.
5. The PSTN switch 408 is reached. The PSTN exchange 408 follows the input telephone number and the VoFAX device 10 of the communication partner.
The incoming call request is made to the PSTN switch 417 connected to the No. 1 station. The PSTN exchange 417 sends a ringing signal, and VoFA
An incoming call is made to the X device 101 (step S205).

In the VoFAX device 101, the incoming call detection unit 108
The incoming call is detected by and the central processing unit 118 is notified (step S206). The central processing unit 118 determines that the call is received by POTS communication, and issues a command to output a ringing tone to be sounded during POTS communication to the oscillation circuit 112. Transmitting circuit 11
2 sounds a ringing tone for POTS communication via the speaker 113 (step S207). In this case, VoDS described later
L The ring tone is distinguished from the ring tone for communication. Along with this, the called party takes the handset 116 off-hook for the purpose of making a call. VoFAX device 10 on the called side that detected off-hook
The central processing unit 118 of No. 1 terminates the telephone line 103 at the line terminating unit 107 so that the VoFAX device 402 on the calling side and P
Open the communication path for OTS communication. Then the calling party's V
The central processing unit 118 of the oFAX device 402 performs control to connect the speech network 117 and the handset 116 by the analog switch 115 via the control line 307.

In the VoFAX device 402 on the calling side, in FIG. 4, 301 of the analog switch 115 is connected to the reception line of the speech network 117, and 302 is connected to the transmission line of the speech network 117. 305 is connected to the receiving end of the handset 116,
6 is connected to the transmitting end of the handset 116. Here, the contact A of the analog switch 115 is closed, and the POTS communication reception is connected to the reception end of the handset 116. Further, by closing the contact F of the analog switch 115, the POTS communication transmission is connected to the transmission end of the handset 116. The contacts B, C, D, G, H and E of the analog switch 115 are left unconnected and open. As a result, the handset 116 and the handset line of the speech network 117 are connected (step S208).

On the other hand, the call-side VoFAX device 101 also performs the same control as the call-side VoFAX device 402 (step S208). As a result, the voice transmission / reception communication channel by POTS communication between the calling side VoFAX device 402 and the called side VoFAX device 101 is opened (step S209). After making a call, hook the handset on the line and
The call ends when 07 opens the telephone line 103 (step S210). After that, the contacts A to H of the analog switch 115 of the calling side VoFAX device 402 and the called side VoFAX device 101 are all opened.

Next, in step S203, the POTS
The case of performing VoDSL communication instead of communication will be described (NO in step S203). When the VoFAX device 402 on the calling side determines that VoDSL communication is possible with the destination of the telephone number input from the key input unit 114, the VoFAX on the calling side
The central processing unit 118 of the AX device 402 is the other party's VoFAX.
The IP (Internet Protocol) address of the device 101 is transmitted from the DMT modem 105 via the Internet network 412 (step S211). Upon receiving this information, the called VoFAX device 101 confirms that this information has been received and the VoDSL.
It returns to the VoFAX device 402 on the calling side that communication is possible (step S212). At the same time, the called party's Vo
The central processing unit 118 of the FAX apparatus 101 determines that the call is received by VoDSL communication (step S213), and issues a command to output a ringing tone different from that during POTS communication to the oscillation circuit 112.

Originating circuit 11 of VoFAX device 101 on the called side
2 makes a ring tone for VoDSL communication sound via the speaker 113 (step S214). Along with this, the called party takes the handset 116 off-hook for the purpose of making a call.
When the off-hook is detected, the central processing unit 118 of the called-side VoFAX device 101 informs the DMT modem 105 that the communication channel in VoDSL communication has been opened.
Send to. At this time, the central processing unit 118 of the calling side VoFAX device 402 uses the analog switch 115 to switch the CODE
The control line 30 controls the connection between the C119 and the handset 116.
Via 7.

In the VoFAX device 402 on the calling side, in FIG. 4, 303 of the analog switch 115 is a CODEC 119.
, And 304 is connected to the transmission line of the CODEC 119. 305 is connected to the receiving end of the handset 116, and 306 is connected to the transmitting end of the handset 116. Here, the contacts of the analog switch 115
Close C and connect the VoDSL communication reception to the reception end of the handset. Further, by closing the contact H of the analog switch 115, the connection is made to the transmission end of the VoDSL communication and the transmission end of the handset. The contacts A, B, D, E, F, and G of the analog switch 115 are left unconnected and open. As a result, the handset 116 and the CODEC 119 are connected (step S21).
5).

On the other hand, the VoFAX device 101 on the called side also performs the same control as the VoFAX device 402 on the calling side (step S215). As a result, the call path for VoDSL communication between the calling side VoFAX device 402 and the called side VoFAX device 101 is established (step S216). After making a call, the handset is hooked on the hook and the VoFAX device 10 on the called side is called.
The central processing unit 118 of No. 1 transmits information to terminate the call from the DMT modem 105 to the calling side VoFAX device 402, and the call side VoFAX device 101 receives the information from the calling side VoFAX device 402. The call ends when the message is received (step S217).

In the above-mentioned example, the control for switching the audio signal as the analog signal is performed by the analog switch 115, but this is only one example, and what is used if the audio signal can be switched. Good. For example, the object can be achieved by switching the audio signal with a time switch after digitizing the audio signal.

When the Internet service provider (hereinafter, ISP) contracted by the called side does not subscribe to the VoDSL service, the ISP contracted by the calling side automatically selects the station closest to the called side. , And communicate to the station via the Internet, and from there, the voice gateway 416
It is also possible to perform POTS communication via. A voice gateway is a converter that converts a voice signal of VoDSL communication into a format of POTS communication and can transmit / receive with a conventional voice communication exchange.

Since the operation shown in the present embodiment is possible even when the called-side device is a general telephone not subscribed to the ISP, the called-side telephone is not selected. As a result, even if the calling side and the called side are at a long distance, it becomes possible to make a call at the local communication charge. Of course, even if the communication between the calling side and the called side is international communication, the call can be made at the local charge.

Although not described in the above flow chart, the general telephone 409 connected to the PSTN switching network 411
It is also possible to perform POTS communication with the VoFAX device 101 using the PSTN switching network 411. Similarly, the facsimile device 410 connected to the PSTN switching network 411 is the VoFAX device 101.
It is also possible to perform facsimile communication by POTS communication with. At the same time as the POTS communication, it is added that the PC 102 can also perform data transmission / reception with the server 413 connected to the Internet network 412 by ADSL communication.

As described above, according to the first embodiment, the following effects can be obtained. (1) POT even when making a voice call using VoDSL communication
Even when voice communication is performed by S communication, voice communication can be performed by the common handset. As a result, compared with the case where two telephones are installed as in the conventional case, the economical burden required for installing the telephones can be reduced, and the complexity of wiring around the telephones can be eliminated. (2) Since VoDSL communication or POTS communication is automatically selected, it is not necessary to check whether to select VoDSL communication or POTS communication before making a call. (3) By distinguishing the ring tone of the VoDSL communication from the ring tone of the POTS communication, it is possible to immediately determine which route the VoDSL communication or the POTS communication is from.

[Second Embodiment] In the second embodiment of the present invention, in a Voice Over DSL (VoDSL) device, the same telephone as in the first embodiment is used and the Internet network is used by VoDSL communication. The operation when performing voice communication via the communication and the operation when performing voice communication by POTS communication will be described based on FIGS. 6 to 10. Regarding the constituent elements in each drawing, the same constituent elements are shown if the reference numerals of the constituent elements are the same even if the drawings are different.

FIG. 8 shows Vo according to the second embodiment of the present invention.
It is a block diagram which shows the structure of a DSL apparatus. In FIG. 8, a set top box device (hereinafter VoSTB device) 60
1 is a device installed in a home and capable of supporting both VoDSL communication and POTS communication. The PC 602 is a device that accesses a server on the Internet network and transmits / receives data. The telephone line 603 connects the VoSTB device 601 and the facility on the station side. POTS splitter 604 is a POTS
It is a device that separates communication signals from VoDSL communication signals and ADSL data signals. The DMT modem 605 is a device that transmits and receives ADSL communication signals and VoDSL communication signals, and the analog front end, driver receiver, etc. are omitted for convenience of the drawing.

Ethernet (registered trademark) controller 6
Reference numeral 06 is a device used when transmitting and receiving data from a server on the Internet network to and from a PC. SLIC (Subscriber Lin
The e Interface Controller) 607 is a device for converting the voice signal digital-analog converted by the CODEC 608 into 2-4 lines in VoDSL communication.
Also has a function of detecting a selection signal of the telephone 611. The central processing unit 609 is a device that controls the entire VoSTB device 601, and executes the processes shown in the flowcharts of FIGS. 6 and 7 based on a control program.

The relay 610 is for VoTS communication and Vo.
This is to switch the communication path (call line) for DSL communication. Phone 611 is for POTS communication and VoDSL
In both cases of communication, voice communication can be performed. The selection signal sending unit 612 sends a selection signal of the other party to the PSTN switching network. The incoming call detection unit 613 detects an incoming call for POTS communication. The oscillator circuit 614 sends a ringing signal to the telephone 611 when an incoming call is received during VoDSL communication.

The VoSTB device 802 on the calling side (see FIG. 10) also includes the above-described components as in the VoSTB device 601 on the called side. In the present embodiment, for convenience,
Components of VoSTB device 802 on the calling side and VoSTB on the called side
The components of the device 601 will be denoted by the same reference numerals.

FIG. 9 shows a VoSTB device 601 and a VoSTB device 802.
It is a figure which shows the detailed structure of the relay each equipped with. In FIG. 9, reference numeral 701 is a contact of the relay. 702 is SL
It is a VoDSL communication TIP line connected to the IC 607. 7
03 is a POTS communication connected to the POTS splitter 604.
It is a TIP line. 704 is a V connected to the SLIC 607
This is the RING line for oDSL communication. Reference numeral 705 denotes a POTS communication RING line connected to the POTS splitter 604. 7
Reference numeral 06 is a RING line connected to the telephone 611.
A TIP line 707 is connected to the telephone 611. Reference numeral 708 is a control line from the central processing unit 609. Here, the reason for using the relay is that it is necessary to switch the direct current supplied from the telephone line 603 and the SLIC 607.

FIG. 10 is a block diagram showing the structures of the calling side and the called side. In FIG. 10, reference numeral 801 denotes the calling side.
It is a PC. Reference numeral 802 is a VoSTB device on the calling side. 80
Reference numeral 3 denotes the entire station building device connected to the calling VoSTB device 802. 804 is a station and VoSTB device 802
Is a telephone line that connects Reference numeral 805 is a POTS splitter that separates a POTS communication signal from a VoDSL communication signal and an ADSL communication data signal. Reference numeral 806 is a DSLAM that transmits and receives an ADSL signal to and from the Internet network 812. 807
Uses PSTN switch 808 to convert voice signals multiplexed with ADSL signals.
It is a voice gateway that sends and receives with. 809 is PS
It is a general telephone directly connected to the TN switching network 811. 8
Reference numeral 12 is an internet network. A server 813 is connected to the Internet 812. 814 is
It is the entire device in the called station. Since the configuration of the entire device 814 of the called station is the same as the configuration of the entire device 803 of the called station, description thereof will be omitted. 601, 602,
Reference numerals 603 and 611 are the same as the constituent elements in FIG.

Next, the operation of the second embodiment configured as described above will be described in detail with reference to FIGS. 6 and 7. 6 and 7 are flow charts showing the operation in the second embodiment. The processing on the calling side in this flowchart is executed by the central processing unit 609 of the VoSTB device 802 on the calling side based on the control program, and the processing on the called side in this flowchart is performed by the VoSTB on the called side.
The central processing unit 609 of the device 601 executes it based on the control program.

The operation starts in step S501 of FIG. In the standby state, the contact 701 of the relay 610 of the VoSTB device 802 on the calling side is connected to the A side and the C side by the control line 708 in the central processing unit 609. Calling party
In the telephone 820 connected to the VoSTB device 802, the telephone number of the other party to communicate with, that is, the telephone connected to the called VoSTB device 601 is input (step S502). The telephone number entered from the telephone 820 is
It is detected by the SLIC 607 of the VoSTB device 802 on the calling side and sent to the central processing unit 609.

For the inputted telephone number, the central processing unit 609 of the VoSTB device 802 on the calling side
Determine whether the voice communication is VoDSL communication or POTS communication. This is because the called party's telephone number is registered in advance and PO for each called party's telephone number.
Whether TS communication or VoDSL communication is performed, which communication method is more efficient is registered in advance, and the registration data is used to judge (step S503). When judging the communication method, since VoDSL communication uses the Internet, the communication fee is free, so it is common to set VoDSL communication as the default.

As a result of the above determination, when it is determined that communication cannot be performed only by POTS communication (YES in step S503), the VoSTB device 802 on the calling side uses the telephone number input from the telephone 820 in the selection signal transmission unit 612. Telephone line 8
04 (step S504). The transmitted selection signal is sent from the POTS splitter 805 of the station device 803.
Reach PSTN exchange 808. The PSTN exchange 808 follows the PSTN connected to the other party according to the entered telephone number.
An incoming call is requested to the exchange 817. The PSTN exchange 817 sends a ringing signal and makes an incoming call to the VoSTB device 601 (step S505).

In the VoSTB device 601, the incoming call detection unit 613
Then, the incoming call is detected and the central processing unit 618 is notified (step S506). The central processing unit 618 determines that the call is received by POTS communication, and the contact 701 of the relay 610 is connected to the control line 708.
To switch to the B or D side. This allows the telephone 6
The eleven ringers ring by the ringing signal from the telephone line 603 (step S507). At this time, the contact 701 of the relay 610 is also on the calling side telephone 820.
It is switched to the B and D sides (step S508).

After that, by off-hooking the handset of the called side telephone 611, the calling side telephone 820 and the called side telephone 611 are directly connected via the PSTN exchange 808 and the PSTN exchange 817, and a call is made by POTS communication. Can be performed (step S509). After making the call, the handset is hooked on the hook to end the call (step S5).
10). After the call ends, the relay 610 of the VoSTB device 802 on the calling side and the VoSTB device 601 on the called side contacts the contact 701.
It switches to the A and C side and enters the standby state. Relay 610
It is the telephone 611 that switches to the A or C side and enters the standby state.
Is to detect off-hook when making a call.
This is to prevent the selection signal from being sent to the telephone line when the TS communication or VoDSL communication is not decided.

Next, in step S503, the POTS
The case of performing VoDSL communication instead of communication will be described (NO in step S503). Destination of the entered phone number and VoDS
When L communication is possible, the central processing unit 609 of the VoSTB device 802 on the calling side sends the IP address of the VoSTB device 601 of the other party from the DMT modem 605 to the Internet network 812.
(Step S511). The VoSTB device 601 receiving this information sends an ACK signal due to the receipt of this information and a signal indicating that VoDSL communication is possible.
It returns to the VoSTB device 802 (step S512). At the same time, the central processing unit 609 of the VoSTB device 601
Judges that it is an incoming call by VoDSL communication (step S51).
3), the ringing signal is sent to the SLIC 60 by the oscillation circuit 614.
7 to the telephone 611. This causes the ringer of the telephone 611 to ring (step S514).

At this time, since the contact points of the relay 610 of the VoSTB device 802 on the calling side and the VoSTB device 601 on the called side are on the A and C sides (step S515), the handset of the telephone 611 is hooked off to bring VoDSL. A voice call is established by communication (step S516). After making a call,
The contents that the handset handset is on-hook, the central processing unit 609 of the called VoSTB device 601 transmits information for ending the call from the DMT modem 605 to the calling VoSTB device 802, and the information received from the VoSTB device 802. The call ends by receiving the signal (step S517).

In the above example, the telephone line was switched by using the ordinary relay, but this is only one example, and the telephone line on which the direct current is superimposed, such as the photo MOS relay, is switched. As long as it is possible, any may be used.

Although not described in this flowchart,
The ordinary telephone 809 connected to the PSTN switching network 811,
VoSTB device 601 and VoSTB device 8 using the TN switching network 811
02, a telephone 611 and a telephone 820, respectively.
It is also possible to carry out POTS communication with.

As described above, according to the second embodiment, the following effects can be obtained. (1) By configuring a current supply circuit to the telephone connected to the outside of the VoSTB device, an external telephone can be used for both voice communication by VoDSL communication and voice communication by POTS communication. Can be common. (2) Since VoDSL communication or POTS communication is automatically selected, it is not necessary to check whether to select VoDSL communication or POTS communication before making a call.

[Other Embodiments] In the first and second embodiments described above, in the VoFAX device and the VoSTB device, POTS communication for communication in the voice band and communication for the Internet band in the frequency band different from the voice band are performed. A method of simultaneously performing both VoDSL communication via the same subscriber line is called ADSL (Asymmetri
However, the present invention is not limited to this, and VDSL (Very high data r
ate Digital Subscriber Line) method, SSDSL (Synchron
ized Symmetrical Digital Subscriber Line) method.

In the second embodiment, a speaker may be provided in the configuration of FIG. 8 so that the ringing tone for POTS communication and the ringing tone for VoDSL communication are distinguished and sounded as in the first embodiment.

The present invention may be applied to a system composed of a plurality of devices or an apparatus composed of a single device. A medium such as a storage medium that stores a program code of software that realizes the functions of the above-described embodiments is supplied to a system or apparatus, and the computer (or CPU or MPU) of the system or apparatus stores the medium in the medium such as the storage medium. It goes without saying that the present invention can also be achieved by reading and executing the executed program code.

In this case, the program code itself read from the medium such as the storage medium realizes the function of the above-described embodiment, and the medium such as the storage medium storing the program code constitutes the present invention. It will be. As a medium such as a storage medium for supplying the program code, for example, a floppy (registered trademark) disk, a hard disk, an optical disk, a magneto-optical disk, a CD-RO.
M, CD-R, magnetic tape, non-volatile memory card,
ROM or download via a network can be used.

Further, by executing the program code read by the computer, not only the functions of the above-described embodiment are realized, but also the OS or the like running on the computer is actually executed based on the instruction of the program code. Needless to say, the present invention includes a case where a part or all of the processing of (1) is performed and the functions of the above-described embodiments are realized by the processing.

Further, after the program code read from a medium such as a storage medium is written in a memory provided in a function expansion board inserted into the computer or a function expansion unit connected to the computer, the instruction of the program code is given. Based on the above, a case where a CPU or the like included in the function expansion board or the function expansion unit performs a part or all of actual processing and the processing realizes the functions of the above-described embodiments is not included in the present invention. Needless to say.

[0071]

As described above, the present invention has the following effects. (1) It is possible to perform voice communication with a common handset when performing voice communication by high-speed data communication (VoDSL communication) and voice communication by voice band communication (POTS communication). As a result, compared with the case where two telephones are installed as in the conventional case, the economical burden required for installing the telephones can be reduced, and the complexity of wiring around the telephones can be eliminated. (2) High-speed data communication (by providing a configuration in which a telephone line connected to the outside of the voice communication device is switched to a telephone line on which direct current is superimposed, that is, a current supply circuit for the telephone is configured. An external telephone can be used in common both when making a voice call in VoDSL communication) and making a voice communication in voice band communication (POTS communication). (3) Since high-speed data communication (VoDSL communication) or voice band communication (POTS communication) is automatically selected, high-speed data communication (VoDSL communication) and voice band communication (POT) before calling.
There is no need to find out which option (S communication) to choose. (4) High-speed data communication (VoDSL communication) and voice band communication (POT) by distinguishing the ring tone of high-speed data communication (VoDSL communication) and the ring tone of voice band communication (POTS communication).
It is possible to immediately determine which route (S communication) is the incoming call.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a VoFAX device according to a first embodiment of the present invention.

FIG. 2 is a flowchart showing an operation according to the first embodiment.

FIG. 3 is a flowchart showing a continuation of FIG.

FIG. 4 is a diagram showing a detailed configuration of the analog switch of FIG.

5 is a block diagram showing a configuration of a calling side and a called side including the VoFAX device of FIG.

FIG. 6 is a flowchart showing an operation according to the second embodiment.

FIG. 7 is a flowchart showing a continuation of FIG.

FIG. 8 is a block diagram showing a configuration of a VoSTB device according to a second embodiment.

9 is a diagram showing a detailed configuration of the relay of FIG.

10 is a block diagram showing a configuration of a calling side and a called side including the VoSTB device of FIG.

FIG. 11 is a block diagram showing a configuration of an apparatus for performing voice communication by ADSL communication according to a conventional example.

[Explanation of symbols]

101, 402 VoFAX device (voice communication device) 115 Analog switch (voice signal switching means) 116 Handset 118 Central processing unit (call control means, ringtone control means) 601, 802 VoSTB device (voice communication device) 609 Central processing device (Call control means, ring tone control means) 610 Relay (call line switching means) 611 Telephone

Claims (45)

[Claims] 1. A voice band communication for communicating in a voice band and a high speed data communication for communicating using an internet network in a frequency band different from the voice band can be simultaneously performed through the same subscriber line. A voice communication device capable of multiplexing a voice signal in a part of the high-speed data communication, wherein a voice signal in the case of performing the voice band communication and a voice signal multiplexed in a part of the high-speed data communication A voice signal switching means for switching between the voice signal switching means and a call control means for performing control to enable a call with a shared handset even when a call is made using any of the voice signals switched by the voice signal switching means. A voice communication device characterized by. 2. The call control means determines whether to perform voice communication in the voice band communication or voice communication in the high speed data communication with respect to an input telephone number, and voice communication in the voice band communication. In the case of performing the above, the voice signal switching means connects the voice transmission and reception of the voice band communication to the transmission end and the reception end of the handset, and when performing the voice communication in the high speed data communication, the voice signal 2. The voice communication device according to claim 1, wherein the switching means controls the transmission and reception of the high-speed data communication to the transmission end and the reception end of the handset. 3. The call control means makes the determination based on registered data indicating which communication method, the voice band communication or the high-speed data communication, is more efficient. The voice communication device according to claim 2. 4. The voice communication device according to claim 1, wherein the voice signal switching means includes an analog switch. 5. The voice communication device according to claim 1, wherein the voice signal switching means includes a time switch. 6. A ring tone control means is provided for distinguishing between a ring tone when the voice band communication is performed and a ring tone when the voice signal is multiplexed in a part of the high speed data communication to make a call. The voice communication device according to claim 1, wherein the voice communication device is a voice communication device. 7. A method of simultaneously performing both the voice band communication and the high-speed data communication using the same subscriber line,
The voice communication device according to claim 1, wherein the voice communication device is an ADSL (Asymmetric Digital Subscriber Line) system. 8. A method of simultaneously performing both the voice band communication and the high-speed data communication using the same subscriber line,
VDSL (Very high data rate Digital Subscriber Line
) System, the voice communication device according to claim 1. 9. A method of simultaneously performing both the voice band communication and the high-speed data communication using the same subscriber line,
SSDSL (Synchronized Symmetrical Digital Subscriber
2. The voice communication device according to claim 1, wherein the voice communication device is a Line) system. 10. The voice communication device according to claim 1, wherein the voice communication device includes a voice communication device having a facsimile built therein. 11. A voice band communication for communicating in a voice band,
It is possible to simultaneously perform both high-speed data communication using the Internet network in a frequency band different from the voice band through the same subscriber line, and multiplexing a voice signal in a part of the high-speed data communication. Is a voice communication device capable of performing a call line switching means for switching a call line on which direct current is superposed on a telephone connected to the outside, and the call line switching means for switching the call line, When making a call using either of the voice signals for voice band communication and the voice signal multiplexed in a part of the high-speed data communication, control is performed to enable the call on the shared telephone. A voice communication device comprising a call control means. 12. The call control unit determines whether to perform voice communication in the voice band communication or voice communication in the high speed data communication with respect to an input telephone number, and perform voice communication in the voice band communication. When the voice communication is performed by the call line switching means, the call line is switched for the voice band communication, and when the voice communication is performed by the high speed data communication, the call line switching means is used for the high speed data communication. 12. The voice communication device according to claim 11, wherein the voice communication device is controlled to switch. 13. The call control means makes the determination based on registered data indicating which communication method, the voice band communication or the high speed data communication, is more efficient. The voice communication device according to claim 12. 14. The voice communication device according to claim 11, wherein the call line switching unit includes a relay. 15. The voice communication device according to claim 11, wherein the call line switching unit includes a photomos relay. 16. A ring tone control means for distinguishing between a ring tone when performing the voice band communication and a ring tone when performing a call by multiplexing a voice signal on a part of the high speed data communication. The voice communication device according to claim 11, wherein the voice communication device is a voice communication device. 17. The method for simultaneously performing both the voice band communication and the high speed data communication using the same subscriber line is an ADSL (Asymmetric Digital Subscriber Line) method. Voice communication device. 18. A system for simultaneously performing both the voice band communication and the high speed data communication using the same subscriber line is a VDSL (Very high data rate Digital Subscriber L).
ine) system, the voice communication device according to claim 11. 19. A method of simultaneously performing both the voice band communication and the high speed data communication using the same subscriber line is SSDSL (Synchronized Symmetrical Digital Subscrib).
12. The voice communication device according to claim 11, wherein the voice communication device is an er line system. 20. The voice communication device includes a set top box device.
9. The voice communication device according to any one of 9. 21. Between the calling-side voice communication device according to any one of claims 1 to 20 and the called-side voice communication device according to any one of claims 1 to 20, A communication system capable of simultaneously performing both the voice band communication and the high speed data communication using the same subscriber line. 22. A voice band communication for communicating in a voice band,
It is possible to simultaneously perform both high-speed data communication using the Internet network in a frequency band different from the voice band through the same subscriber line, and multiplexing a voice signal in a part of the high-speed data communication. A voice communication control method applied to a voice communication device capable of performing a voice signal switching step of switching between a voice signal when performing the voice band communication and a voice signal multiplexed in a part of the high-speed data communication, And a voice communication control step of performing a control to enable a telephone call with a shared handset when a telephone call is made using any of the voice signals switched in the voice signal switching step. Method. 23. In the call control step, it is determined whether to perform voice communication in the voice band communication or voice communication in the high speed data communication with respect to an input telephone number, and voice communication in the voice band communication. In the case of performing the voice signal switching step, the voice signal and the voice signal in the voice band communication are connected to the voice transmitting end and the voice receiving end of the handset, and the voice signal is transmitted in the high speed data communication. 23. The voice communication control method according to claim 22, wherein the switching step controls the transmission and reception of the high-speed data communication to the transmission end and the reception end of the handset. 24. In the call control step, the judgment is made based on registered data indicating which communication method of the voice band communication and the high speed data communication is more efficient. The voice communication control method according to claim 23. 25. The voice communication control method according to claim 22, wherein in the voice signal switching step, the voice signal is switched by an analog switch. 26. The voice communication control method according to claim 22, wherein in the voice signal switching step, the voice signal is switched by a time switch. 27. A ring tone control step of ringing a ring tone when the voice band communication is performed and a ring tone when the voice signal is multiplexed in a part of the high speed data communication to distinguish the ring tone. The voice communication control method according to any one of claims 22 to 24, characterized in that. 28. The ADSL (Asymmetric Digital Subscriber Line) method is used as the method for simultaneously performing both the voice band communication and the high-speed data communication using the same subscriber line. Voice communication control method. 29. A method for simultaneously performing both the voice band communication and the high speed data communication using the same subscriber line is a VDSL (Very high data rate Digital Subscriber L).
23. The voice communication control method according to claim 22, wherein the voice communication control method is an ine) system. 30. A method of simultaneously performing both the voice band communication and the high speed data communication using the same subscriber line is SSDSL (Synchronized Symmetrical Digital Subscrib).
23. The voice communication control method according to claim 22, wherein the voice communication control method is an er line system. 31. The voice communication control method according to claim 22, wherein the voice communication control method is applied to a voice communication device with a built-in facsimile as the voice communication device. 32. A voice band communication for communicating in a voice band,
It is possible to simultaneously perform both high-speed data communication using the Internet network in a frequency band different from the voice band through the same subscriber line, and multiplexing a voice signal in a part of the high-speed data communication. Is a voice communication control method applied to a voice communication device capable of performing a call line switching step of switching a call line on which direct current is superimposed on an externally connected telephone; The telephone is shared even when a call is made by using any of the voice signals of the voice signal for performing the voice band communication and the voice signal multiplexed in a part of the high-speed data communication by switching the call line. A voice communication control method, comprising: a call control step of performing a control for enabling a telephone call. 33. In the call control step, it is determined whether to perform voice communication in the voice band communication or voice communication in the high speed data communication with respect to an inputted telephone number, and voice communication in the voice band communication. In the case of performing, the call line is switched for the voice band communication by the call line switching step,
33. The voice communication control method according to claim 32, wherein when voice communication is performed by the high-speed data communication, control for switching the call line for the high-speed data communication is performed in the call line switching step. 34. In the call control step, the determination is made based on registered data indicating which communication method, the voice band communication or the high speed data communication, is more efficient. The voice communication control method according to claim 33. 35. The voice communication control method according to claim 32, wherein in the call line switching step, the call line is switched by a relay. 36. The voice communication control method according to claim 32, wherein in the call line switching step, the call line is switched by a photomos relay. 37. A ring tone control step is provided for distinguishing between ring tone when the voice band communication is performed and ring tone when the voice signal is multiplexed in a part of the high speed data communication. The voice communication control method according to any one of claims 32 to 34, wherein: 38. The ADSL (Asymmetric Digital Subscriber Line) method is used as the method for simultaneously performing both the voice band communication and the high-speed data communication using the same subscriber line. Voice communication control method. 39. A method of simultaneously performing both the voice band communication and the high speed data communication using the same subscriber line is a VDSL (Very high data rate Digital Subscriber L).
33. The voice communication control method according to claim 32, wherein 40. A method of simultaneously performing both the voice band communication and the high-speed data communication using the same subscriber line is SSDSL (Synchronized Symmetrical Digital Subscrib).
33. The voice communication control method according to claim 32, wherein the voice communication control method is an er line system. 41. The set-top box device as the voice communication device, wherein the set-top box device is applied.
The voice communication control method according to any one of 2 to 40. 42. A voice band communication for communicating in a voice band,
It is possible to simultaneously perform both high-speed data communication using the Internet network in a frequency band different from the voice band through the same subscriber line, and multiplexing a voice signal in a part of the high-speed data communication. Is a computer-readable storage medium that stores a program for executing a voice communication control method applied to a voice communication device capable of performing the voice communication in the case of performing the voice band communication. A voice signal switching step for switching between a voice signal multiplexed in a part of the high-speed data communication, and a common handset even when a call is made using any of the voice signals switched in the voice signal switching step. A storage medium, comprising: a call control step of performing control for enabling a call. 43. A voice band communication for communicating in a voice band,
It is possible to simultaneously perform both high-speed data communication using the Internet network in a frequency band different from the voice band through the same subscriber line, and multiplexing a voice signal in a part of the high-speed data communication. Is a computer-readable storage medium storing a program for executing a voice communication control method applied to a voice communication device capable of performing the voice communication control method. The call line switching step for switching the superimposed call line, and the call line switching step for switching the call line, the voice signal for performing the voice band communication and a part of the high-speed data communication are multiplexed. A call control switch that controls to enable a call on the shared telephone even when a call is made using any of the above audio signals. A storage medium having a step. 44. A voice band communication for communicating in a voice band,
It is possible to simultaneously perform both high-speed data communication using the Internet network in a frequency band different from the voice band through the same subscriber line, and multiplexing a voice signal in a part of the high-speed data communication. Which is a program supplied to a voice communication device capable of performing the voice band communication, and a voice signal switching step of switching between a voice signal in the case of performing the voice band communication and a voice signal multiplexed in a part of the high-speed data communication; A call control step for performing control to enable a call using a shared handset even when a call is made using any of the voice signals switched in the signal switching step. 45. A voice band communication for communicating in a voice band,
It is possible to simultaneously perform both high-speed data communication using the Internet network in a frequency band different from the voice band through the same subscriber line, and multiplexing a voice signal in a part of the high-speed data communication. Is a program supplied to a voice communication device capable of performing a call line switching step for switching a call line on which direct current is superimposed on an externally connected telephone, and the call line is switched by the call line switching step. By switching, even if a call is made using either of the voice signals of the voice band communication and the voice signal of the voice signal multiplexed in a part of the high-speed data communication, the telephone can be shared And a call control step for performing the control.