JP2005333598A - Calling system and method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To automatically originate calls to all telephone numbers published on a Web page without requiring any special description on the Web page. <P>SOLUTION: By using a computer 13 connected to an IP network 1 via a public line network 2 and accessible to information data distributed on the IP network 1, a telephone set 12 capable of calling via the public line network 2 or the IP network 1 and an ADSL MODEM 22 for mutually converting a digital signal to/from an audio signal for connecting the computer 13 and the telephone set 12 to the IP network 1 or the public line network 2, in the computer 13, the information data distributed on the IP network 1 are acquired, a telephone number is detected out of a character string contained in the acquired information data, and start of call origination to the detected telephone number is requested. In the ADSL MODEM 22, call origination to the telephone number is performed in response to the request of the call origination start, and communication established by the call origination is connected to the telephone set 12. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a call system and method for performing a normal call or a VoIP call through a public telephone line such as an ADSL line.

  In recent years, a web page is posted on an IP network such as the Internet, and various information is transmitted through the web page and can be browsed by browser software or the like. In some cases, a contact number such as a phone number may be posted on the web page. Conventionally, when contacting this phone number, the user can see the phone number displayed on the browser software while viewing the phone number. Had to dial.

  On the other hand, a technique for automatically dialing a telephone number posted on a Web page by a simple operation on browser software has been developed (for example, Patent Document 1).

In the technique disclosed in Patent Document 1, a tag for identifying a telephone number and a tag for displaying a button for executing a program for requesting dialing are described in HTML data constituting a Web page. According to such a technique, by clicking a button on a Web page displayed on the browser software, it is possible to make a call from a modem or the like, and it is possible to eliminate the need for dialing on the telephone.
JP 10-336349 A

  However, the technique disclosed in Patent Document 1 described above has a problem that a button for dialing must be described in HTML data constituting a Web page. Therefore, this technique cannot automatically dial all of the phone numbers presented on the web page.

  Therefore, the present invention has been made in view of the above points, and performs automatic call processing for all telephone numbers posted on a Web page without requiring any special description on the Web page. It is an object of the present invention to provide a call system and method that can be used.

  In order to solve the above problems, the present invention provides an information terminal device connectable to an IP network through a public telephone line network, a call means capable of making a call through a public telephone line network or an IP network, an information terminal apparatus, and a call means Is connected to an IP network or a public network using a signal converter for converting a digital signal and an audio signal to each other.

  In the present invention, in the information terminal device, information data including a character string is acquired, a telephone number is detected from the character string included in the acquired information data, and a calling process to the detected telephone number is performed In response to the request for starting the calling process, the signal converter performs a calling process to the telephone number and connects the communication established by the calling process to the calling means.

  In the above invention, the call means may be a telephone provided independently of the information terminal device, and the voice call interface provided on the information terminal device is executed on the information terminal device. It may be telephone software that makes a phone call. In the above invention, the calling means may be both the telephone and telephone software, and the telephone and telephone software may selectively operate by branch control based on user settings.

  The information data may be data stored in a storage means built in the information terminal device, or data distributed and arranged on the IP network and accessed and acquired by the information terminal device. Also good.

  According to the present invention as described above, a telephone number posted on information data such as a web page can be detected by character string analysis, and calling processing can be performed on the detected telephone number. It is not necessary to describe a special tag or program in the HTML data constituting the, and call processing can be performed for all telephone numbers.

  In the above invention, when performing the calling process, it is preferable to monitor the hooking state of the telephone and execute the calling process when an off-hook of the telephone is detected. In this case, unless the user performs an off-hook operation such as lifting the handset of the telephone, the calling process is not executed only by the operation on the information terminal device. When an unauthorized program that automatically executes a call start request is included, it is possible to prevent a call process unintended by the user from being executed.

  In the above invention, the signal converter includes a telephone number identifying means for identifying a telephone number for making a call through the IP network, and a signal converter for performing mutual conversion between a voice signal and a packet signal when making a call through the IP network. It is preferable to provide a part. In this case, automatic dialing can also be performed for a so-called Internet telephone through an IP network based on the VoIP technology.

  As described above, according to the present invention, it is possible to perform automatic call processing for all telephone numbers posted on a Web page without requiring any special description on the Web page. Communication can be realized.

(Network configuration)
Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a schematic configuration diagram of a network according to the present embodiment. As shown in the figure, in this embodiment, a telephone 12 and a computer 13 are connected to an ADSL modem 22 that performs high-speed digital communication using a metallic subscriber line in the user's home.

  The telephone 12 is a communication device that performs a voice call. The telephone 12 establishes communication with the telephone of the other party (for example, the telephone 71) by dialing, and performs a call by sending and receiving an analog voice signal.

  The computer 13 has a CPU and can execute various arithmetic processes, and has a communication interface. The computer 13 is connected to the IP network 1 and is distributed by the Web servers 1a to 1c distributed on the IP network 1. Is an information terminal device that can access As this computer 13, for example, a general-purpose computer such as a personal computer, a dedicated device specialized in function, a mobile computer, or a PDA (Personal Digital Assistance) can be employed.

  The ADSL modem 22 is a signal converter that converts digital signals and audio signals to each other in order to connect the computer 13 and the telephone 12 to the IP network 1 or the public line network 2. In this embodiment, the ADSL modem 22 has a built-in splitter 33 for branching or synthesizing a voice band signal and a modulated signal, and is connected to the public line network 2 (line switching network) via a splitter 34 on the station side. Has been. Furthermore, the ADSL modem 22 is connected to the IP network 1 (packet network) via a DSLAM 42 which is a collective ADSL modem that converts a modulated signal and an IP packet. As the ADSL modem 22, for example, an ADSL modem compliant with the ITU-T G.992.1 Annex A.ex standard can be used.

  On the other hand, the ADSL modem 21 used by other users has the same function as the ADSL modem 22 and includes a conversion processing unit 200 and a voice band signal processing unit 210. The telephone 11 is connected to the IP network 1 via an ADSL modem 21 and a DSLAM 41. In the present embodiment, the telephone 11 is not connected to the public line network 2. However, it is possible to connect to the public line network 2 by using a splitter in the same manner as the telephone 12.

  In this embodiment, the IP network 1 is a communication network that transmits and receives IP packets in which voice band signals are converted. The L3SW 51 is a layer 3 switch that transmits received IP packets to a predetermined port based on an IP address or the like. , 52 constitute a communication path. Note that the IP network 1 may be configured by a router instead of the layer 3 switch.

  Web servers 1a to 1c are server computers that distribute information data such as HTML (HyperText Markup Language) files, image files, music files, etc. in a document system such as the World Wide Web (WWW) or software having the function. Yes, information such as HTML documents and images is stored, and information data is distributed through the IP network 1 in response to a request from client software such as a Web browser. The information data according to the present embodiment is exemplified as data distributed from the Web servers 1a to 1c and accessed via the communication network. However, as in a modification example described later, the information data is stored in a hard disk or the like in the computer 13. It may be local data stored in the apparatus.

  In the present embodiment, the public line network 2 is a communication network using a line switching system composed of telephone switches 91 to 94, and is a telephone service network called a subscription telephone network or a PSTN (Public Switched Telephone Network). .

  The IP network 1 and the public line network 2 are communicably connected via a gateway 81 and a gateway 82 provided on the IP network 1. Specifically, the gateway 81 is connected to the telephone switch 92 and the gateway 82 is connected to the telephone switch 93.

  The gateway 81 and the gateway 82 can convert an IP packet transmitted / received in the IP network 1 and a predetermined PCM signal (for example, ITU-T G.711) transmitted / received in the public line network 2. The gateway 81 and the gateway 82 convert between a call control protocol (for example, MGCP) used in the IP network 1 and a common line signal system (for example, ITU-T No. 7) used in the public network 2. It can be performed. When the gateway 81 and the gateway 82 have the above-described functions, the system according to the present embodiment can provide a communication path that passes through the IP network 1 and the public line network 2.

  The MGC 61 manages telephone terminals existing in a predetermined area of the IP network 1 and sets a communication path in the predetermined area. In this embodiment, the MGC 61 manages the telephone set 11 and the gateway 81 connected to the L3SW 51. The MGC 61 receives a connection request from the telephone 11 and sets a communication path between the telephone 11 and the telephone 12 together with the MGC 62 that manages the telephone 12.

  On the other hand, in this embodiment, the MGC 62 manages the telephone 12 connected to the L3SW 52 and the gateway 82, and based on the notification of the connection request from the MGC 61, the communication path between the telephone 11 and the telephone 12 together with the MGC 61. Set.

  In this embodiment, a telephone 71 that subscribes only to the public line network 2 is connected to the telephone switch 91. For example, when the MGC 61 receives a request for connection with the telephone 71 from the telephone 11, the communication path via the IP network 1 and the public line network 2 is connected to the telephone 11 via the gateway 81 managed by the MGC 61. It is set between the telephone 71.

(Construction of call system)
Next, a call system built in the user's home will be described. FIG. 2 is an explanatory diagram showing a connection state of devices constituting the call system, and FIG. 3 is a block diagram showing an internal configuration thereof.

  As shown in FIG. 2 (a), in the house, as a communication connection, a subscriber telephone line 43 from the ADSL modem 22 is connected to a modular jack 43b, and a telephone 12 is connected via an indoor telephone line 32a. A computer 13 is connected via the LAN 33a.

  The computer 13 implements various functions by executing predetermined programs on the CPU 130. Specifically, as shown in FIG. 3, an application unit 131 for browsing information data distributed by the Web servers 1 a to 1 c on the IP network 1, and a telephone call from a character string displayed on the application unit 131 A telephone number detection unit 132 for detecting a number and a call operation unit 133 for requesting the start of call processing for the telephone number detected by the telephone number detection unit 132 are provided. Further, display means such as a monitor 13 a and operation devices such as a mouse 13 b are connected to the computer 13 through an external interface 135. The computer 13 is communicably connected to the ADSL modem 22 through the communication interface 134.

  The application unit 131 is a module having a function of displaying information data including a character string, and is virtually configured by executing software such as word processing software, spreadsheet software, browser software, and the like on the CPU 130. In particular, in the present embodiment, the application unit 131 has a function of browsing a Web page, downloads an HTML (HyperText Markup Language) file, an image file, a music file, and the like from the IP network 1 through the ADSL modem 22, and lays out the layout. Analyze and display / play. It is also possible for a user to send data to a Web server using a form, or to run application software written in a predetermined programming language.

  In this embodiment, the telephone number detection unit 132 is plug-in software added to the software executed by the application unit 131. The telephone number detection unit 132 detects the pattern of the character string displayed on the application unit 131 and determines the telephone number. Extract. The telephone number detection unit 132 according to the present embodiment includes a positive mode that positively detects a phone number that approximates a character string pattern, and a passive mode that detects only those that completely match the character string pattern. And can be selected.

  As this character string pattern, for example, in the passive mode, the combination of half-width numbers “x” and “-(hyphen)” “xxx-xxx-xxxx”, “xxxx-xx-xxxx”, “0x0-xxxx-xxxx” In the active mode, “xxxxxxxxxx”, “0xxxxxxxxxx”, etc. can be identified as a phone number only by the number of digits or the leading digit 0 in the active mode.

  Then, the telephone number detection unit 132 performs so-called clickable display such as reverse display or underline display on the monitor 13a with respect to the extracted telephone number, and highlights that the telephone number can be automatically dialed.

  The call operation unit 133 is a module that performs an operation such as clicking a telephone number displayed on the monitor 13a with the mouse 13b or the like. That is, the coordinate position of the pointer displayed on the software and the trigger signal by the mouse 13b or the like are detected, the telephone number to which the call request is made is detected, and the call request signal based on the detection result is transmitted to the communication interface. The data is sent to the call processing unit 224 of the ADSL modem 22 through 134.

  On the other hand, the ADSL modem 22 connects a call processing unit 224 that performs a call processing to a telephone number in response to a request for a call processing start by the call operation unit 133 and a communication established by the call processing to the telephone 12. And a hooking detection unit 223 that detects a hooking state in the telephone set 12. The ADSL modem 22 has a so-called VoIP function, and includes a VoIP conversion unit 220 and a telephone number identification unit 221 as a configuration for realizing the VoIP function.

  The call processing unit 224 is a module that sends a call signal to the IP network 1 or the PSTN 2 in accordance with the type of the telephone number dialed by the telephone 12 or clicked by the call operation unit 133. The call processing unit 224 is connected to the hooking detection unit 223, and executes the call processing when receiving a control signal instructing permission of the call processing from the hooking detection unit 223. When call processing is prohibited, the call processing unit 224 has a function of notifying the computer 13 that the call processing has been stopped, and the computer 13 receives this notification. In this case, a message is displayed on the monitor 13a.

  The hooking detection unit 223 allows the call processing unit 224 to perform call processing when the telephone set of the telephone set 12 is raised, that is, when off-hook is detected, and when off-hook is not detected, This module prohibits processing. The hooking detection unit 223 may be provided with a setting function for selecting a mode for permitting call processing even when the hooking in the telephone 12 is ignored and no off-hook is detected.

  The communication connection unit 222 distributes a signal transmitted / received to / from the splitter 33 to the telephone set 12 or the computer 13 and sends a call processing request from the computer 13 to the splitter 33 as a call processing request from the telephone set 12. Send it out. In other words, in the present embodiment, communication processing is switched to the telephone 12 at the same time as the calling process is started in the ADSL modem 22.

  The VoIP conversion unit 220 is a module that performs VoIP conversion based on a control signal from the telephone number identification unit 221. The VoIP conversion unit 220 converts a voice band signal received from the telephone set 12 into an IP packet during a VoIP call. The IP packet is modulated by a predetermined ADSL modem standard, and this modulated signal is sent to the data line of the splitter 33. In addition, the VoIP conversion unit 220 responds to the control signal from the telephone number identification unit 221 and when the communication is a general call and VoIP conversion is not necessary, the received voice band signal is directly applied to the phone line of the splitter 33. Send it out. Furthermore, the ADSL modem 22 converts the modulated signal received from the network side into an IP packet, converts it into a voice band signal, and sends it to the telephone set 12.

  The telephone number identification unit 221 obtains a telephone number dialed by the telephone 12 or clicked by the call operation unit 133, and analyzes the station number of the telephone number to thereby establish communication that is currently being established. It is determined whether the call is a general call or a VoIP call, and the necessity of VoIP conversion and a signal transmission destination (data line or phone line) are instructed to the VoIP conversion unit 220 according to the determination result.

  In this embodiment, the apparatus configuration shown in FIG. 2A will be described as an example. However, the modules 220 to 224 provided in the ADSL modem 22 described above are connected to the ADSL modem 22 and the terminal adapter 230 for VoIP. The communication system connection in the house may be configured as shown in FIG. 2B, for example.

  That is, as shown in FIG. 5B, a telephone connection is made to the terminal adapter 230 via the indoor telephone line 31a, and a data communication connection is made to the terminal adapter 230 via the LAN line 31b. The terminal adapter 230 is connected to the telephone 12 via the indoor telephone line 32a, and is connected to the computer 13 via the LAN 33a for data communication.

(Call method)
By operating the call system having the above configuration, the call method of the present invention can be implemented. FIG. 4 is a flowchart showing the operation of the call system according to the present embodiment.

  First, software is started by the application unit 131, the Web server 1a to 1c is accessed, and the Web page is browsed by receiving information data (S101). When this software is activated, the telephone number detection unit 132 is plugged in and the detection of the telephone number is started (S102). If the character string pattern described above exists in the information data, clickable display is performed (S103).

  When the user wishes to perform call processing by clicking, the user raises the handset of the telephone 12 (or sets to the on-hook dial mode) and clicks the clickable display on the monitor 13a (S104 to S105). In response to this click operation, the call processing unit 224 determines whether or not to allow the call processing (S107). That is, when off-hook is detected by the hooking detection unit 223 (“Y” in step S107), the calling process starts (S109), and when off-hook is not detected (“N” in step S107), The calling process is stopped and the computer 13 notifies the user to that effect (S108).

  When the calling process is started, the telephone number identifying unit 221 identifies the telephone number (S112), and determines whether the telephone number related to the calling is a normal call or a VoIP call (S113). For example, if the telephone number is for the telephone 71 that does not support VoIP calls, it is determined as a normal call, and if the telephone number is for the telephone 11 that supports VoIP calls, it is determined as a VoIP call. In addition, when the calling process is started, the communication connection unit 222 connects the telephone set 12 to the communication line (S110), and thereby the telephone set 12 enters a connection standby state (S111).

  In step S113, when it is determined that the telephone number related to the call is based on a normal call ("N" in step S113), the telephone 71 is connected through PSTN2. Thereby, the incoming call processing is started in the telephone 71 (S114). On the other hand, when it is determined in step S113 that the telephone number related to the call is a VoIP call (“Y” in step S113), the VoIP conversion unit 220 performs VoIP conversion (S115), Connect to the telephone 11. Thereby, the incoming call process is started in the telephone 11 (S116). Then, after the incoming call processing is completed at the call destination, communication is established and a call becomes possible (S117).

(Example of change)
In addition, this invention is not limited to embodiment mentioned above, The following changes can be added. FIG. 5 is a block diagram showing the internal configuration of the call system according to this modification.

  In the above-described embodiment, the information data is an HTML file or the like distributed by the Web servers 1a to 1c. However, as shown in FIG. 5, local data (for example, text data) stored in the built-in hard disk 14 of the computer 13 is used. Application files such as files and table data). In this case, the application unit 131 accesses the built-in hard disk 14 and directly reads information data.

  Further, in the above-described embodiment, the call means is only the telephone 12 which is a device independent of the computer 13, but in this modified example, as shown in FIG. The telephone 13 also includes telephone software (for example, SIP (Session Initiation Protocol) softphone) for making a call via a voice call interface (for example, headphones with a microphone) 13 c provided in the computer 13. The telephone 12 and telephone software 137 are selectively operated by the branch control manager 136 based on user settings.

  FIG. 6 shows the operation of the call system according to this modified example. First, software is started by the application unit 131. Here, an application file which is local information data in the internal hard disk 14 is read (S201). In step S201, the web server can be browsed by accessing the web servers 1a to 1c using browser software as in the above-described embodiment.

  When this software is activated, the telephone number detection unit 132 is plugged in and the detection of the telephone number is started (S202). Thereafter, when the above-described character string pattern exists in the information data, clickable display is performed and clickable display is clicked (S203).

  In response to this click operation, the branch control manager 136 reads the user settings and determines whether the user uses the telephone 12 or the telephone software 137 to make a call (S204). If it is set to make a call using the telephone software 137, the process proceeds to step S209.

  On the other hand, if the user is set to make a call using the telephone set 12 in step S204, the process proceeds to step S206, and enters an off-hook operation waiting state. Then, when the off-hook operation (S205) by the user is detected, the call processing unit 224 determines whether or not to permit the call processing (S207).

  When off-hook is detected by the hooking detection unit 223 (“Y” in step S207), or when a call using the telephone software 137 is started in step S204, the call processing unit 224 starts the call processing If the off-hook is not detected (“N” in step S207), the calling process is stopped and the computer 13 notifies the user to that effect (S208).

  When the calling process is started, the telephone number identifying unit 221 identifies the telephone number (S212), and determines whether the telephone number related to the calling is a normal call or a VoIP call (S213). Further, when the calling process is started in step S209, the communication connection unit 222 connects the telephone set 12 to the communication line (S210), and thereby the telephone set 12 enters a connection standby state (S211).

  If it is determined in step S213 that the telephone number related to the call is based on a normal call ("N" in step S213), the telephone 71 is connected through PSTN2. Thereby, the incoming call process is started in the telephone 71 (S214). On the other hand, when it is determined in step S213 that the telephone number related to the outgoing call is a VoIP call (“Y” in step S213), the VoIP conversion unit 220 performs VoIP conversion (S215), and passes through the IP network 1. Connect to the telephone 11. Thereby, the incoming call process is started in the telephone 11 (S116). Then, after the incoming call processing is completed at the call destination, communication is established and a call becomes possible (S217).

(Effects of call system and method)
According to the call system and the call method according to the embodiment and the modification described above, the phone number posted on the information data such as the web page is detected by the character string analysis by the phone number detection unit 132, and is detected. Since call processing can be performed for telephone numbers, there is no need to describe special tags or programs in the HTML data constituting the Web page, and automatic call processing is performed for all telephone numbers. It can be performed.

  In the present embodiment, when performing the calling process, the hooking detection unit 223 monitors the hooking state of the telephone 12 and executes the calling process when the telephone 12 is detected to be off-hook. Unless an off-hook operation such as raising the 12 handset is performed, the call processing is not executed only by the operation on the computer 13, for example, a call start request unintended by the user is automatically executed in the information data. It is possible to prevent a call process unintended by the user from being executed when such an illegal program is included.

1 is a schematic configuration diagram of a network according to an embodiment. (A) is explanatory drawing which shows the connection state of the apparatus which comprises the telephone call system which concerns on embodiment, (b) is explanatory drawing which shows the example of a change. It is a block diagram which shows the internal structure of the telephone system which concerns on embodiment. It is a flowchart figure which shows operation | movement of the telephone system which concerns on embodiment. It is a block diagram which shows the internal structure of the telephone system which concerns on the example of a change. It is a flowchart figure which shows operation | movement of the telephone system which concerns on the example of a change.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... IP network, 1a-1c ... Web server, 2 ... Public network, 11, 12, 71 ... Telephone, 13 ... Computer, 13a ... Monitor, 13b ... Mouse, 13c ... Headphone with microphone, 14 ... Built-in hard disk, 21 22 ... ADSL modem, 230 ... terminal adapter, 33,34 ... splitter, 41,42 ... DSLAM, 51,52 ... SW, 61,62 ... MGC, 81,82 ... gateway, 91-94 ... telephone exchange, 130 ... CPU 131 131 Application unit 132 Telephone number detection unit 133 Calling operation unit 134 Communication interface 135 External interface 136 Branch control manager unit 137 Telephone software 220 VoIP conversion unit 221 ... telephone number identification unit, 222 ... communication connection unit, 223 ... hooking detection unit, 224 ... calling process Science department

Claims (14)

An information terminal device that can be connected to an IP network through a public telephone network;
Call means capable of making a call through the public telephone line network or the IP network;
In order to connect the information terminal device and the call means to the IP network or the public line network, a call system for making a call using a signal converter that mutually converts a digital signal and a voice signal,
The information terminal device
An application unit having a function of displaying information data including character strings;
A phone number detection unit for detecting a phone number from the character string displayed on the application unit;
A call operation unit for requesting a call processing start to the telephone number detected by the telephone number detection unit,
The signal converter is
In response to the call processing start request, a call processing unit that performs call processing to the telephone number;
A communication system comprising: a communication connection unit that connects the communication established by the call processing to the call means.   The call system according to claim 1, wherein the call means is a telephone provided separately from the information terminal device.   2. The call system according to claim 1, wherein the call means is telephone software that is executed on the information terminal device and makes a call via a voice call interface provided in the information terminal device. The call means is a telephone provided separately from the information terminal device, and telephone software that is executed on the information terminal device and performs a call through a voice call interface provided in the information terminal device. Yes,
The telephone system according to claim 1, wherein the telephone and the telephone software are selectively operated by branch control based on a user setting. The signal converter includes a hooking detection unit that detects a hooking state in the telephone, and executes call processing by the call processing unit when the hook detection unit detects an off-hook of the telephone. The call system according to claim 2 or 4, characterized in that.   The call system according to claim 1, wherein the information data is data distributed on the IP network and accessed by the application unit of the information terminal device. The signal converter is
A telephone number identifying unit for identifying a telephone number for making a call through the IP network;
2. The call according to claim 1, further comprising: a signal conversion unit that performs mutual conversion between a voice signal and a packet signal when a call is made through the IP network based on an identification result of the telephone number identification unit. system. An information terminal device that can be connected to an IP network through a public telephone network;
Call means capable of making a call through the public telephone line network or the IP network;
In order to connect the information terminal device and the call means to the IP network or the public line network, a call method for making a call using a signal converter that mutually converts a digital signal and a voice signal,
In the information terminal device, acquiring information data including a character string, detecting a telephone number from the character string included in the acquired information data, and requesting a call processing start to the detected telephone number (1) and
In the signal converter, in response to a request to start calling processing, performing the calling processing to the telephone number (2),
And (3) connecting the communication established by the call processing to the call means.   9. The calling method according to claim 8, wherein the calling means is a telephone provided separately from the information terminal device.   9. The calling method according to claim 8, wherein the calling means is telephone software which is executed on the information terminal device and makes a call via a voice call interface provided in the information terminal device. The call means is a telephone provided independently of the information terminal device, and telephone software that is executed on the information terminal device and performs a call via a voice call interface provided in the information terminal device. Yes,
9. The calling method according to claim 8, wherein, in the step (3), the telephone and the telephone software are selectively connected by branch control based on a user setting.   9. The call method according to claim 8, wherein in the step (2), a hooking state of the telephone is monitored, and the call processing is executed when an off-hook of the telephone is detected.   The call method according to claim 8, wherein the information data is data distributed on the IP network and accessed by the information terminal device.   In the step (3), the signal converter identifies a telephone number for making a call through the IP network, and when making a call through the IP network based on the identification result, a voice signal, a packet signal, 9. The call method according to claim 8, wherein mutual conversion is performed.

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