JP2020120357A - Communication system and communication method thereof - Google Patents

Abstract

To allow for exact language specification without any hassle for user, when performing speech recognition, in communication by telephone terminal.SOLUTION: A communication server has a machine translation processing section holding a user information table mapping a telephone number, a connection destination telephone number and the corresponding language of the user relevant to the telephone number, and performing voice translation from a first language to a second language, and a speech control section for analyzing an incoming telephone number, and performing connection control with the telephone terminal of the connection destination telephone number as the connection destination telephone terminal. The speech control section acquires the corresponding language of the user of the incoming telephone number, with reference to the user information table, acquires the corresponding language of the user of the connection destination telephone terminal, with that language as the first language, and calls the machine translation processing section with that language as the second language, and then the machine translation processing section performs machine translation with the inputted voice as the voice of the first language, and outputs as the voice of the second language.SELECTED DRAWING: Figure 12

Description

The present invention relates to a communication system and a communication method therefor, and more particularly to a communication system and a communication method suitable for designating a translation language when performing voice translation of a telephone terminal.

The automatic voice translation recognizes the voice of the input person, converts it into text, automatically translates the text of the input language into the text of the target language, and further converts the translated text into the voice of the target language. And output.

The so-called language identification, which directly determines the language from the speech without specifying the language of the speech, has a computational load, and there are many technical problems in performing practical translation in real time. In general, it is necessary to specify the language and the translated language.

As a conventional technique for designating a language using a telephone terminal, there is, for example, Patent Document 1. Patent Document 1 discloses a communication system that specifies a language by a DTMF (Dual-Tone Multi-Frequency) signal generated from a telephone terminal.

JP, 2008-82269, A

The above-mentioned Patent Document 1 of the related art has an advantage that the language at the time of translation can be designated by the DTMF signal generated by the key operation generally used in the conventional telephone terminal. According to the language designation method, it is necessary to remember the DTMF signal corresponding to the language or to check the reference information such as the correspondence table of the DTMF signal and the language one by one, and when the operator inputs the DTMF signal. It is possible to make a mistake in the designation.

Further, if a language identification technique is used without specifying a language at the time of translation, there is a possibility that the other party's language cannot be recognized and the wrong language is identified to allow the translation to proceed.

An object of the present invention is to provide a communication system capable of accurately specifying a language at the time of translation, and a communication thereof, without any trouble for a user when performing voice recognition.

The communication system according to the present invention is preferably a communication system in which a telephone terminal and a communication server are connected by a telephone line, the telephone terminal has means for transmitting and receiving a call to the communication server, and the communication server is a call server. A machine translation processing unit that holds user information in which the information identifying the source or the response destination telephone terminal and the corresponding language of the user are held, and that performs voice translation from the first language to the second language; And a call control unit that analyzes the call and performs call control, a reception control unit that receives the voice of the voice signal transmitted by the telephone line, and an output control unit that transmits the voice of the voice signal by the telephone line, The call control unit analyzes the incoming call information, specifies the telephone terminal of the caller, refers to the user information, acquires the corresponding corresponding language, and sets the corresponding language as the first language or the second language. The machine translation processing unit is designated to call the machine translation processing unit, and the machine translation processing unit machine-translates the input voice as the voice of the first language and outputs the voice as the voice of the second language.

A more detailed communication system according to the present invention is preferably a communication system in which a telephone terminal and a communication server are connected by a telephone line, and the telephone terminal has means for transmitting and receiving a call to and from the communication server. Is a machine translation processing unit that holds a user information table that associates a telephone number, a connection destination telephone number, and a corresponding language of a user related to the telephone number, and that performs voice translation from the first language to the second language, A call control unit that analyzes the incoming telephone number and controls the connection using the telephone terminal of the connection destination telephone number as the connection destination telephone terminal, a reception control unit that receives the voice of the audio signal transmitted by the telephone line, and a telephone It has an output control unit for transmitting the voice of the voice signal through the line, the call control unit refers to the user information table, analyzes the incoming telephone number, acquires the corresponding language of the user of the incoming telephone number, With that language as the first language, the language corresponding to the user of the telephone number of the connection destination telephone terminal is acquired, and the language corresponding to the user of the telephone number of the connection destination telephone terminal is set as the second language. The calling/machine translation processing unit is configured to machine-translate the input voice as voice in the first language and output it as voice in the second language.

According to the present invention, it is possible to provide a communication system and its communication capable of accurately designating a language at the time of translation without any trouble for a user when performing voice recognition.

It is a whole block diagram of a communication system. It is a functional block diagram of a telephone terminal. It is a functional block diagram of an information processing terminal. It is a functional block diagram of a communication server. It is a figure which shows an example of a user information table. It is a figure which shows an example of a call control table. It is a figure which shows an example of a translation information table. It is a figure which shows the outline of a machine translation process in a communication server. It is a sequence diagram which shows a series of processes of a communication system (the 1). It is a sequence diagram which shows a series of processes of a communication system (the 2). It is a flowchart which shows the detail of a process when registering user information in a user information table. It is a flow chart which shows details of processing when a communication server reads user information. It is a flowchart which shows the detail of a process from an incoming call of a communication server to translation setting.

Hereinafter, each embodiment according to the present invention will be described with reference to FIGS. 1 to 12.

First, the configuration of a communication system according to an embodiment will be described with reference to FIGS. 1 to 4.

As shown in FIG. 1, the communication system of the present embodiment includes a telephone terminal 10 (denoted as telephone terminal A10a and telephone terminal B10b in the figure), an information processing terminal 200 (in the figure, information processing terminal A200a, and information processing terminal). B200b), the communication server 100 is connected by the network 5.

The telephone terminal 10 and the communication server 100 make a call connection using a telephone line protocol, and the information processing terminal 200 and the communication server 100 perform data communication by an IP network.

The communication server 100 decodes a voice signal transmitted via the network 5 (telephone line), converts the voice signal into voice, translates the voice into a voice in a designated language, encodes the voice, and transmits the voice to the network. 5 is a device for transmitting to the telephone terminal 10 via 5 (telephone line). In addition, the communication server 100 has a function of creating data for displaying information regarding a call, translated text of a call, and a screen regarding authentication on the information processing terminal 200, and transmitting the data to the information processing terminal 200.

The information processing terminal 200 has a function of receiving the screen data created by the communication server 100 and displaying the content related to the call, the translated text of the call, and the screen related to the authentication. Further, the user inputs user information (details will be described later) from the information processing terminal 200.

As shown in FIG. 2, the telephone terminal 10 includes a receiver 11, a transmitter 12, a key device 13, a voice signal converter 14, a connection controller 15, and a DTMF signal generator 16. The handset 11 and the transmitter 12 are a speaker for receiving a voice and a microphone for transmitting a voice, respectively. The voice signal conversion unit 14 is a unit that converts an electric signal from a telephone line into a voice and converts a voice from the transmitter 12 into an electric signal. The connection control unit 15 is a part that controls incoming and outgoing calls and connects and disconnects the line with the telephone terminal 10. The DTMF signal generation unit 16 is a device that generates a DTMF signal of a predetermined frequency according to the input of the key device 13.

The information processing terminal 200 is realized by an information processing apparatus having a general network function and a screen input/output function, and as a functional configuration, as shown in FIG. 3, a display control unit 201, an input/output control unit 202, It has each functional unit of the connection control unit 203 and the storage unit 204. The display control unit 201 is a unit that controls display of display data transmitted from the communication server 100 on a display device. The input/output control unit 202 is a unit that controls input and output from the user to the input/output device. The connection control unit 203 is a unit that controls network connection with the communication server 100 via the network 5. The storage unit 204 is a unit for storing programs executed by the information processing terminal 200, screen display data 210, and input data 220 from the user. Each function of the information processing terminal 200 can be implemented by a processing device (CPU (Central Processing Unit), GPU (Graphics Processing Unit), or the like) executing a program stored in the storage unit 204.

The input/output data of the screen is, for example, an HTML (HyperText Markup Language) file transmitted from the communication server 100, and the information processing terminal 200 can be realized as a display control unit 201 by a general Web browser. it can.

The information processing terminal 200 may be not only a general PC (Personal Computer) but also a tablet, a smartphone, or the like.

The communication server 100 is a server device that provides a function of automatically voice-translating the content of a call exchanged by the telephone terminal 10, transmitting the voice in the translated language, and displaying the translation information on the information processing terminal 200. Yes, as shown in FIG. 4, it includes a Web management unit 110, a call management unit 130, a database access unit 120, and a database 150.

The Web management unit 110 is a unit that manages Web page data and controls the exchange of Web pages with the information processing terminal 200. The Web management unit 110 is connected to the information processing terminal 200 via the Internet and performs data communication by the TCP/IP protocol.

The Web management unit 110 includes subcomponents of an input data analysis unit 111, a screen output unit 112, and a Web control unit 113. The input data analysis unit 111 is a unit that analyzes data input by the information processing terminal 200 and transmitted via the network 5. The screen output unit 112 is a unit that outputs display data to be transmitted to the information processing terminal 200. The Web control unit 113 is a unit that controls input/output and movement of a Web page displayed on the information processing terminal 200.

The database access unit 120 is a unit that serves as an interface for the Web management unit 110 and the call management unit 120 to access the database 150.

The call management unit 130 is a unit that manages a call with the telephone terminal 10 and controls a call connection. The call management unit 130 communicates with the telephone terminal 10 according to a call connection protocol. The call management unit 130 includes a reception control unit 131, a transmission control unit 132, a call state analysis unit 133, a DTMF signal analysis unit 134, a voice analysis unit 135, a voice synthesis unit 136, a call control unit 137, a machine translation processing unit 138, and a call. It is composed of subcomponents of the control unit 139. The reception control unit 110 is a unit that receives a control signal, a voice signal, or a DTMF signal from the telephone terminal 10 via a telephone line and decodes the signal. The transmission control unit 132 is a part that performs control for returning the translated voice as a voice signal to the telephone terminal 10. The call controller 139 is a part that controls a call according to a call control signal.

The call state analysis unit 133 is a unit that analyzes a call state (whether or not a connection is being made) with the telephone terminal 10. The DTMF signal analysis unit 134 is a unit that analyzes the frequency included in the DTMF signal and performs coding for recognizing which button is pressed by the telephone terminal 10. The voice analysis unit 135 is a unit that detects a break in a voice signal from the telephone terminal 10, recognizes a machine translation unit, outputs the unit, and records the unit. The voice synthesizer 136 is a part that creates a voice for outputting a voice of the translated language. The call control unit 137 is a part that performs control for distributing processing according to a control signal, a voice signal, or a DTMF signal from the telephone terminal 10. The machine translation processing unit 138 performs voice recognition and coding of the voice data input by the voice analysis unit 135, performs machine translation of the voice data from the original language to a designated language, and outputs the voice of the translated text. This is the part that creates the file.

In the present embodiment, the machine translation processing unit 138 that performs the machine translation process is included in the call management unit 130 of the communication server 100, but the machine translation processing unit is a hardware different from other functional units. It may be included in the device, or may be in an external environment connected by a network such as a cloud.

The database 150 stores a user information table 300, a call control table 310, and a translation information table 320. The details of each table will be described later.

Next, the data structure used in the communication system will be described with reference to FIGS.

First, an example of the user information table will be described with reference to FIG.
The user information table 300 is a table that stores information about users who use the communication system. As shown in FIG. 5, a user name 300a, a telephone number 300b, a password 300c, a connection destination telephone number 300d, and a corresponding language 300e. It consists of each field. The user name 300a stores the unique name of the user who receives the translation service of the communication system. The telephone number 300b stores the telephone number of the user who is entered in the user name. The password 300c stores the password used when the user who is listed in the user name logs in to the system. The connection destination telephone number 300d stores the telephone number of the telephone terminal to which the communication is connected when the user described in the user name makes a call with the telephone number described in the telephone number 300b. The corresponding language 300e stores a name or an identifier that identifies the language described in the user name and assumed to be used by the user.

The call control table 310 is a table that stores information for controlling a call from a telephone terminal, and includes fields of a call ID 310a, a calling telephone number 310b, and a receiving telephone number 310c, as shown in FIG.

The call ID 310a stores an identifier that uniquely identifies the call. The outgoing telephone number 310b stores the telephone number of the calling telephone terminal. The telephone number of the called telephone terminal is stored in the incoming telephone number 310c.

The translation information table 320 is a table that stores information related to machine translation by the communication server, and as shown in FIG. 7, a translation ID 320a, a call ID 320b, a translation source language 320c, a translation destination language 320d, and a translation input text file. 320e, a translation output text file 320f, and a translated voice file 320g.

The translation ID 320a stores an identifier serving as a key for identifying the translation process. The call ID 320b stores the call ID of a call related to this translation process. The translation source language 320c stores a name or an identifier for identifying the language that is the translation source. The name or identifier for identifying the language to be translated is stored in the translated language 320d. The translation input text file 320e stores the name of a text file in a language that is a translation source of machine translation. The translation output text file 320f stores the name of the text file in the language to which the machine translation is translated. The translation voice file 320g stores the name of the voice file when the text described in the translation output text file 320f is voice output.

Next, processing of the communication system will be described with reference to FIGS.

First, the outline of the machine translation process in the communication server will be described with reference to FIG.
Here, a case where the user name “Jonh” shown in FIG. 5 calls the user name “Staff A” will be described.

When the user name “Jonh” calls the user name “Staff A”, since “Jonh” is an English speaker, an English voice is input to the machine translation processing unit 138. The machine translation processing unit 138 first performs voice recognition processing to convert voice into English text. Next, the language translation process converts the English text into the Japanese text. Finally, the Japanese text is converted into a Japanese voice sound file and output as voice. When the user name “Staff A” speaks to the user name “Jonh”, the reverse flow occurs, the Japanese voice is input to the machine translation processing unit 138, and the English voice is output.

Next, a series of processes of the communication system will be described with reference to FIGS. 9A and 9B.

Also here, when the user name "Jonh" calls the user name "Staff A" and the user name "Staff A" responds and uses the translation processing service in the communication server to speak to each other. Assume

First, the user name "Jonh" originates from the telephone terminal A10a (S01, A01 in FIG. 9A). Then, the call is received by the call control unit 139 of the communication server 100 (S02).

Next, the call control unit 139 notifies the call control unit 137 of the incoming call (A02).

Next, the telephone number received by the call control unit 137 is acquired and analyzed (S03). In this case, the telephone number from the user name "Jonh" is "1000". Then, the call control unit 137 acquires the user information stored in the user information table 300 of the database 150 via the database access unit 120 (A03, A04, A05, A06).

Next, the call control unit 137 retrieves the incoming telephone number from the user information obtained from the database access unit, and obtains the connection destination telephone number and the corresponding language (S04). In this case, the connection destination telephone number is "5000" and the corresponding language is "English".

Next, the call control unit 137 notifies the call control unit 139 to call the connection destination telephone number acquired from the user information (A07), and the call control unit 139 calls the connection destination telephone number (S05, A08).

Then, the call arrives at the telephone terminal B10b (S06, A08), and the user name "Staff A" responds (S07, A09). The call control unit 139 notifies the call control unit 137 of the response from the telephone terminal B10b (A10).

Next, the call control unit 137 acquires the telephone number of the responding telephone terminal B10b (S08). The telephone number in this case is "5000". Then, the call control unit 137 acquires the user information stored in the user information table 300 of the database 150 via the database access unit 120 (A11, A12, A13, A14).

Next, the call control unit 137 retrieves the incoming telephone number from the user information obtained from the database access unit and obtains the corresponding language (S09). In this case, the corresponding language is "Japanese".

Next, the user name “Jonh” speaks from the telephone terminal A10a (S10 in FIG. 9B). Then, the reception control unit 139 receives the voice (A20), and the voice analysis unit 135 records each sentence (A21, S11). Then, the voice analysis unit 135 transmits the information of the recording file and notifies the call control unit 137 that the recording is completed (A22).

Next, the call control unit 137 transmits the corresponding language acquired from the user information, the recording input text file, and the translated voice file name to the machine translation processing unit 138 (A23).

Next, as shown in FIG. 8, the machine translation processing unit 138 performs voice recognition processing, language translation processing, and voice synthesis file creation processing (S12). Then, the machine translation processing unit 138 notifies the call control unit 137 of the completion of translation (A24).

Next, the call control unit 137 acquires the translated voice file name of the translation result and notifies the voice synthesis unit 136 (A25).
Then, the voice synthesis unit 136 performs voice synthesis based on the translated voice file of the translated voice file name, and the transmission control unit 132 transmits voice to the telephone terminal B10b of the user name "Staff A" (A26, A27).

The same is true even when the user speaks from the telephone terminal B10b with the user name "Staff A", except that the language is different and the flow of information is reversed (S13 to S15, A30 to A37).

Next, a process of registering user information in the user information table will be described with reference to FIG.

A user who wants to register user information in the user information table 300 inputs the user information from the information processing terminal 200 connected to the network 5 via the Web (S100).

The communication server 100 causes the input data analysis unit 111 of the Web management unit 110 to analyze the input data (S101).

Next, the input data analysis unit 111 transmits user information to the Web control unit 113 (S102).

Next, the user information is registered in the user information table 300 of the database 150 via the database access unit 120 (S103).

Next, the Web control unit 113 registers in the work table (not shown) that the user information in the user information table 300 has been changed (S104). The modification of the user information may be performed in a format in which the modified specific user information is held, or in a format having only a flag indicating that the user information has been modified.

Next, the processing when the communication server reads the user information will be described with reference to FIG.
First, the call control unit 137 acquires the user information of the user information table 300 via the database access unit 120 (S200).

Next, the call control unit 137 expands the user information on the main memory (S201).

Next, the call control unit 137 inquires of the Web control unit 113 that the user information has been changed, and when the user information has been changed (S202: Yes), the call control unit 137 causes the database access unit 120 to operate. The user information of the user information table 300 is acquired through (S203), and when there is no change in the user information (S202: No), the input waiting of S202 is waited.

Next, the call control unit 137 expands the user information in the main memory (S204).

Next, the processing from the incoming call of the communication server to the translation setting will be described with reference to FIG.
First, the call control unit 139 of the call management unit 130 of the communication server 100 receives an incoming call from the telephone terminal 10 (S300).

Next, the call control unit 139 notifies the call control unit 137 of the incoming call (S301), and the call control unit 137 analyzes the incoming call information and acquires the calling number (S302).

Next, the call control unit 137 searches the user information held in the main memory for the calling number obtained from the incoming call information, and if the user information in the main memory has the calling number obtained from the incoming call information, (S304: Yes), go to S304, and if not (S304: No), go to S312.

If there is a calling number obtained from the incoming call information, the call control unit 137 acquires the corresponding language and the connection destination telephone number from the user information (S304).

If there is no calling number obtained from the incoming call information, the default compatible language and the default connection destination telephone number are acquired from the config information (not shown) that defines the default system operation (S312). Go to S305.

Next, the call control unit 137 instructs the call control unit 139 to make a call to the acquired connection destination telephone number (including the default connection destination telephone number) (S305).

Next, the call control unit 139 receives the response of the transfer destination (S306).

Next, the call control unit 139 notifies the call control unit 137 of the response (S307).

Next, the call control unit 137 analyzes the response information and acquires the called number (=destination telephone number) (S308).

Next, the call control unit 137 searches the user information held in the main memory for the incoming call number obtained from the incoming call information, and if the user information in the main memory has the incoming call number obtained from the response information, (S309: Yes), go to S310, and if not (S309: No), go to S313.

If there is a called number obtained from the response information, the call control unit 137 acquires the corresponding language from the user information (310).

If there is no called number obtained from the response information, the default compatible language is acquired from the configuration information (S313).
Next, the call control unit 137 sets the translation source language and the translation destination language in the translation information table 320 based on the acquired corresponding language (including the default corresponding language) (S314).

According to the present embodiment, by designating the corresponding language of the user who makes the call in the user information in advance, the user does not need to perform a complicated operation such as the input of the DTMF signal, and the language to be translated by the machine translation processing unit can be set. You can specify. Moreover, since there is no need to perform language identification, there is no processing load, and erroneous recognition of language does not occur.

5... Network 10... Telephone Terminal 100... Communication Server 200... Information Processing Terminal

Claims (8)

A communication system in which a telephone terminal and a communication server are connected by a telephone line,
The telephone terminal has means for transmitting and receiving a call to the communication server,
The communication server is
Holds user information in which the information that identifies the call source or the call destination telephone terminal is associated with the user's language,
A machine translation processing unit that performs voice translation from the first language to the second language,
A call control unit that analyzes incoming call information and performs call control,
A reception control unit for receiving the voice of the voice signal transmitted through the telephone line,
An output control unit for transmitting a voice of a voice signal through the telephone line,
The call control unit analyzes incoming call information, identifies a telephone terminal of a caller, refers to the user information, acquires a corresponding corresponding language, and sets the corresponding language to the first language or the first language. Specify the second language, call the machine translation processing unit,
The communication system, wherein the machine translation processing unit machine-translates the input voice as a voice in a first language and outputs the voice as a voice in a second language. A communication system in which a telephone terminal and a communication server are connected by a telephone line,
The telephone terminal has means for transmitting and receiving a call to the communication server,
The communication server is
A user information table in which a telephone number, a connection destination telephone number, and a corresponding language of the user related to the telephone number are held is held,
A machine translation processing unit that performs voice translation from the first language to the second language,
A call control unit that analyzes the received telephone number and performs connection control using the telephone terminal of the connection destination telephone number as the connection destination telephone terminal,
A reception control unit for receiving the voice of the voice signal transmitted through the telephone line,
An output control unit for transmitting a voice of a voice signal through the telephone line,
The call control unit refers to the user information table, analyzes the received telephone number, acquires a corresponding language of the user of the received telephone number, sets the language as a first language, and connects the connection destination telephone. The user's language corresponding to the telephone number of the terminal is acquired, and the language is used as the second language to call the machine translation processing unit,
The communication system, wherein the machine translation processing unit machine-translates the input voice as a voice in a first language and outputs the voice as a voice in a second language. Further, the communication server is
A means for registering that the user information stored in the user information table has been changed,
The call control unit determines whether the user information stored in the user information table is changed, and when the user information stored in the user information table is changed, the user stored in the user information table is changed. 3. The communication system according to claim 2, wherein the information is read, the user information stored in the user information table is expanded on a main memory, and the user information expanded on the main memory is referred to. A communication system in which a telephone terminal and a server are connected by a telephone line,
The telephone terminal has means for transmitting and receiving a call to the server,
Holds user information in which the information that identifies the call source or the call destination telephone terminal is associated with the user's language,
A machine translation processing unit that performs voice translation from the first language to the second language,
A call control unit that analyzes incoming call information and performs call control,
A reception control unit for receiving the voice of the voice signal transmitted through the telephone line,
An output control unit for transmitting a voice of a voice signal through the telephone line,
The call control unit analyzes incoming call information, identifies a telephone terminal of a caller, refers to the user information, acquires a corresponding corresponding language, and sets the corresponding language to the first language or the first language. Specify the second language, call the machine translation processing unit,
The communication system, wherein the machine translation processing unit machine-translates the input voice as a voice in a first language and outputs the voice as a voice in a second language. A communication method of a communication system in which a telephone terminal and a communication server are connected by a telephone line,
The telephone terminal transmits and receives a call to and from the communication server;
A step in which the communication server holds user information in which a call source or a call destination telephone terminal is associated with a corresponding language of the user;
A machine translation processing step for performing voice translation from the first language to the second language,
A call control step that analyzes incoming call information and performs call control,
A reception control step of receiving a voice of a voice signal transmitted through the telephone line,
An output control step of transmitting a voice of a voice signal through the telephone line,
In the call control step, the incoming call information is analyzed, the telephone terminal of the caller is specified, the user information is referred to, a corresponding corresponding language is acquired, and the corresponding language is set to the first language or the first Specify the second language, call the machine translation processing step,
In the machine translation processing step, the input speech is machine-translated as speech in a first language and output as speech in a second language. A communication method of a communication system in which a telephone terminal and a communication server are connected by a telephone line,
The telephone terminal transmitting and receiving a call to and from the communication server;
The communication server holds a user information table in which a telephone number, a connection destination telephone number, and a corresponding language of a user associated with the telephone number are held.
A machine translation step for voice translation from the first language to the second language,
A call control step of analyzing the received telephone number and performing connection control using the telephone terminal of the connection destination telephone number as the connection destination telephone terminal;
A reception control step of receiving a voice of a voice signal transmitted through the telephone line,
An output control step of transmitting a voice of a voice signal through the telephone line,
In the call control step, the user information table is referred to, the received telephone number is analyzed to acquire the corresponding language of the user of the received telephone number, the language is set as the first language, and the connection destination telephone Acquiring the language corresponding to the user of the telephone number of the terminal, calling the process of the machine translation step, with that language as the second language,
In the machine translation step, the input speech is machine-translated as speech in a first language and output as speech in a second language. Further, the communication server is
A step of registering that the user information stored in the user information table has been changed,
In the call control step, it is determined whether the user information stored in the user information table is changed, and when the user information stored in the user information table is changed, the user stored in the user information table is changed. 7. The communication method according to claim 6, wherein the information is read, the user information stored in the user information table is expanded on a main memory, and the user information expanded on the main memory is referred to. A communication method in which a telephone terminal and a server are connected by a telephone line,
The telephone terminal sending and receiving a call to and from the server;
A step of holding user information in which information for identifying a telephone terminal of a call source or a call destination of a call and a corresponding language of the user are associated with each other;
A machine translation processing step for performing voice translation from the first language to the second language,
A call control step that analyzes incoming call information and performs call control,
A reception control step of receiving a voice of a voice signal transmitted through the telephone line,
An output control step of transmitting a voice of a voice signal through the telephone line,
In the call control step, the user information table is referred to, the received telephone number is analyzed to acquire the corresponding language of the user of the received telephone number, the language is set as the first language, and the connection destination telephone Acquiring the language corresponding to the user of the telephone number of the terminal, calling the process of the machine translation step, with that language as the second language,
In the machine translation step, the input speech is machine-translated as speech in a first language and output as speech in a second language.

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