JP7262362B2 - Determination device, determination method and program - Google Patents

Description

The present invention relates to a determination device, a determination method, and a program for determining fraud.

BACKGROUND ART In recent years, there has been an increase in the number of victims of so-called bank transfer frauds, which are frauds in which a person impersonates an employee of a government office or a bank to defraud money. Patent Literature 1 discloses a technique of cutting out words or phrases that have a high risk of fraud from the contents of a call and determining the risk of fraud based on the cut out words or phrases.

JP 2007-139864 A

By the way, remittance fraud is diversifying and becoming more sophisticated, and new remittance frauds are occurring one after another. Since new terminology may be used in a phone call in bank transfer fraud with a new trick, even if a technique such as Patent Document 1 is used, it may not be possible to deal with bank transfer fraud with a new trick. Therefore, even if a new term is used in bank transfer fraud, it is required to accurately determine whether or not it is fraud based on the content of the call.

Therefore, the present invention has been made in view of these points, and it is an object of the present invention to provide a determination device, a determination method, and a program capable of improving the accuracy of determining whether or not it is fraud.

A determination device according to a first aspect of the present invention includes a detection unit that detects that a user starts a call with the other party using a communication device capable of communicating with the other party at a location different from the user; After the detection unit detects the start of the call, the identification unit identifies the name offered by the other party and the place of work offered by the other party, and the place of work determines whether or not the person with the name is employed. a determination unit that determines whether or not the partner is reliable based on the result of the inquiry made by the inquiry unit; and a presentation that presents the presentation information based on the result determined by the determination unit to the user. and

The determination device may further include a request unit requesting the user to repeat the name and the place of work after the detection unit detects that the call is to be started. The name and the place of work may be identified based on what the user said after the requester requested the repeat.

The identifying unit may further identify the organization to which the other party belongs at the place of employment, and the inquiry unit inquires of the place of employment whether the person with the name belongs to the organization. may

The identification unit may identify the organization when a plurality of contacts are identified based on the name of the place of employment, and the inquiry unit may identify a person with the name among the plurality of contacts. An inquiry may be made to the contact corresponding to the organization as to whether the user belongs to the organization.

The determination unit determines that the person with the name is reliable when a response indicating that the person with the name is employed at the place of employment is obtained as a result of the inquiry made by the inquiry unit, and determines that the person is reliable. If no response is obtained indicating that the person is employed at the place of employment, it may be determined that the person is unreliable.

The specifying unit may further specify the business of the other party, the inquiry unit may inquire whether or not the business is included in the work of the employer, and the determination unit may When a reply indicating that the matter is included in the business of the employer is obtained as a result of the inquiry by the inquiry unit, it is determined that the person is reliable, and the matter is related to the business of the employer. If an answer indicating inclusion is not obtained, it may be determined that the partner is unreliable.

The presenting unit presents the presentation information indicating that the continuation of the call is recommended to the user when the determining unit determines that the other party is reliable, and the determining unit determines whether the other party is reliable. When it is determined that there is no call, the user may be presented with the presentation information indicating that the end of the call is recommended.
The determination device may further include a recording management unit that, when the determination unit determines that the other party is unreliable, stores call information obtained by recording the call with the other party in a storage unit.

The inquiry unit sends the name specified by the specifying unit and the It may be possible to inquire whether or not the place of work is registered, and if the place of work is not registered, the place of work specified by the specifying unit may be inquired.

A determination method according to a second aspect of the present invention is executed by a computer and detects that a user starts a call with a party using a communication device capable of talking to the party at a location different from the user. identifying the name offered by the other party and the place of work of the other party offered by the other party after detecting the start of the call; and whether a person with the name is employed at the place of employment a step of inquiring whether or not; a step of determining the reliability of the other party based on the result of the inquiry; and a step of presenting presentation information based on the determined result to the user.

A program according to a third aspect of the present invention comprises a computer, a detection unit for detecting that a user starts a call with the other party using a communication device capable of communicating with the other party at a location different from the user; a specifying unit for specifying the name offered by the other party and the place of work of the other party offered by the other party after the detection unit detects that the call is to be started, and whether a person with the name is enrolled at the place of employment an inquiry unit that inquires whether or not the person is present, a determination unit that determines the reliability of the other party based on the result of the inquiry made by the inquiry unit, and a presentation that presents the presentation information based on the result determined by the determination unit to the user function as a department.

ADVANTAGE OF THE INVENTION According to this invention, it is effective in the ability to improve the precision which determines whether it is fraud.

It is a figure for demonstrating the outline|summary of a determination system. It is a figure which shows the structure of a determination apparatus. 9 is a flowchart showing an example of the flow of processing by an inquiry unit; It is a flowchart which shows the flow of a process of a determination apparatus.

[Overview of Judgment System S]
FIG. 1 is a diagram for explaining an overview of the determination system S. FIG. Determination system S is a system used to provide fraud determination services. The fraud judgment service is a service that judges whether or not the content of the call between the user of the service (hereinafter referred to as "user U") and the other party C is fraudulent, and presents the judgment result to the user U. .

In telephone fraud, the other party C may pretend to be an employee of a government office, the police, a bank, or the like in order to gain the trust of the user U. However, it is difficult for the user U to confirm during the call that the other party C is an employee of a government office, police, bank, or the like. You may receive it. Therefore, the fraud determination service inquires of the place of employment offered by the other party C whether or not the person with the name offered by the other party C is enrolled, and determines whether or not the other party C is reliable based on the result of the inquiry. determines whether or not the content of the call is fraudulent.

A determination system S has a communication device 1 and a determination device 2 . A communication device 1 is a device used by a user U, and is a device capable of communicating with a party C who is in a different location from the user U. FIG. The communication device 1 is, for example, a smart phone, an intercom, or the like.

The determination device 2 is a device used when the user U makes a call using the communication device 1, and is distributed to, for example, the user U who has subscribed to the fraud determination service. The determination device 2 is, for example, a computer. The determination device 2 has a microphone I and a speaker O. FIG. The microphone I is attached to a position of the communication device 1 (for example, near the mouthpiece of the communication device 1) that can acquire the voice uttered by the user U during a call. Also, the speaker O is attached to a position of the communication device 1 (for example, near the earpiece of the communication device 1) where the user U can hear information presented by voice by the determination device 2 during a call.

In the example shown in FIG. 1, it is assumed that the other party C called the user U and the user U answered the call. In this case, first, the determination device 2 detects that the user U has started a call with the other party C based on the voice acquired via the microphone I ((1) in FIG. 1). The determination device 2 identifies the name offered by the other party C and the place of work offered by the other party C based on the voice acquired through the microphone I after detecting that the user U started talking with the other party C. ((2) in FIG. 1).

After specifying the name and place of work of the other party C, the determination device 2 inquires of the specified place of work whether or not a person with the specified name is enrolled ((3) in FIG. 1). The determination device 2 determines whether or not the partner C is reliable based on the result of the inquiry ((4) in FIG. 1).

Then, the determination device 2 presents presentation information based on the determination result to the user U via the speaker O ((5) in FIG. 1). For example, when determining that the other party C is reliable, the determining device 2 presents a message to the user U as presentation information to the effect that continuation of the call is recommended. On the other hand, for example, when determining that the other party C is unreliable, the determination device 2 presents the user U with a message recommending termination of the call as presentation information. By doing so, the determination device 2 can improve the accuracy of determining whether or not the content of the call is fraudulent. As a result, the determination device 2 can reduce the number of cases of damage caused by fraud.
The configuration of the determination device 2 will be described below.

[Configuration of determination device 2]
FIG. 2 is a diagram showing the configuration of the determination device 2. As shown in FIG. The determination device 2 has a voice acquisition unit 21 , a voice output unit 22 , a communication unit 23 , a storage unit 24 and a control unit 25 .

The voice acquisition unit 21 is a microphone I that acquires voice. The audio output unit 22 is a speaker O that outputs audio. The communication unit 23 is a communication module for connecting to data communication lines and voice communication lines.

The storage unit 24 is a storage medium such as a ROM (Read Only Memory), a RAM (Random Access Memory), and a hard disk. The storage unit 24 stores programs executed by the control unit 25 .

The control unit 25 is, for example, a CPU (Central Processing Unit). By executing the programs stored in the storage unit 24, the control unit 25 controls a voice recognition unit 251, a detection unit 252, a specification unit 253, a request unit 254, an inquiry unit 255, a determination unit 256, a presentation unit 257, and recording management. It functions as part 258 .

The voice recognition unit 251 recognizes the voice by converting the voice acquired by the voice acquisition unit 21 into text data. For example, the storage unit 24 stores a machine learning model that has learned features of the voice of the user U, and the voice recognition unit 251 inputs the voice acquired by the voice acquisition unit 21 to the machine learning model, Get the text data output by the machine learning model.

The speech recognition unit 251 acquires the content offered by the other party C by recognizing the voice of the user U repeating the content of the call made by the other party C. FIG. When the voice recognition unit 251 recognizes the voice uttered by the other party C via the telephone, the voice recognition accuracy may vary depending on the quality of the voice call and the active tongue of the other party C. By recognizing the voice of the user U repeating the content offered by the other party C using a machine learning model that has learned the features of , the accuracy of recognizing the content offered by the other party C can be improved.

The detection unit 252 detects that the user U uses the communication device 1 to start a call with the other party C based on the content of the user U's speech. The “content uttered by the user U” is the content uttered by the user U indicated by the text data converted by the speech recognition unit 251 . For example, the detection unit 252 starts a call with the other party C using the communication device 1 when the user U utters a fixed expression (for example, "yes" or "hello") that is uttered at the start of a call. detect that The detection unit 252 may detect that the user U starts talking to the other party C using the communication device 1 when the voice recognition unit 251 recognizes the ringtone emitted when the communication device 1 receives an incoming call. .

After the detecting unit 252 detects that the user U starts talking to the other party C, the specifying unit 253 determines the name offered by the other party C and the place of work offered by the other party C based on the contents of the user U's speech. identify. Specifically, the specifying unit 253 determines the name proposed by the other party C and the Identify the name of the proposed employer and contact information for that employer. A contact is, for example, a phone number.

The identification unit 253 extracts the character string indicating the name and the character string indicating the name of the place of work from the text data converted by the speech recognition unit 251 after the detection unit 252 detects that the user U starts talking with the other party C. By extracting, the name proposed by the other party C and the name of the place of employment proposed by the other party C are identified. The identifying unit 253 can, for example, use a known technique to extract a character string indicating the name and a character string indicating the name of the place of employment from the text data.

The specifying unit 253, for example, via the communication unit 23, based on the name of the specified place of work, extracts the contact information of the place of work from information open to the public on the Internet (for example, the homepage of the place of work or Townpage (registered trademark), etc.). Search for Further, for example, when a telephone directory is stored in the storage unit 24 , the identification unit 253 may search the telephone directory stored in the storage unit 24 for the contact information of the employer.

The specifying unit 253 detects text data converted by the speech recognition unit 251 during the period from when the detecting unit 252 detects that the user U starts talking with the other party C until the user U repeats the name and place of employment of the other party C. Identify the name and place of work of the other party C from among. Therefore, if the period is long, the accuracy with which the specifying unit 253 specifies the name and place of work of the other party C may decrease. Therefore, the specifying unit 253 may specify the name offered by the other party C and the place of employment offered by the other party C, based on the content of the utterance by the user U after the user U is requested to repeat.

Specifically, first, after the detection unit 252 detects that the user U will start a call with the other party C, the request unit 254 sends the user U the name of the other party C and the place of work via the voice output unit 22. Request a repeat. Then, the specifying unit 253 specifies the name and place of work of the other party C based on the content of the speech made by the user U after the requesting unit 254 requests the repetition.

If the specifying unit 253 fails to specify the name and place of work of the other party C after the detecting unit 252 detects that the user U will start a call with the other party C, the requesting unit 254 asks the user U to inform the user U of the other party C. You may be asked to repeat your name and place of work. The requesting unit 254 requests the user U to repeat the name and place of work of the other party C, and then repeats the fixed expression that the user U utters when confirming the name and place of work of the other party C (for example, “tell”, “tell” "I want to know," etc.) or until the specifying unit 253 specifies the name and place of work of the other party C, the name and place of work of the other party C are sent to the user U at predetermined intervals (for example, every minute). may be requested to be repeated.

When the specifying unit 253 calculates the evaluation value indicating the degree of confidence in the specified name and employer of the person C, the requesting unit 254 asks the user U according to the numerical value indicated by the evaluation value calculated by the specifying unit 253 A repeat of the name and place of work of the other party C may be requested. For example, when the evaluation value indicates a higher numerical value as the degree of self-confidence increases, the request unit 254 requests user U to repeat C's name and place of work when the evaluation value falls below a predetermined threshold. may

In this way, the determination device 2 identifies the name and place of work of the other party C based on the content of the user U's utterance after requesting the repetition, thereby improving the accuracy of specifying the name and place of work of the other party C. can be done. Further, for example, when the other party C claims to be a relative of the user U (for example, a son or daughter), the user U can find out the name of the other party C in response to a request for repeating the name of the other party C and the place of work. Thus, the user U can confirm whether or not the other party C is a relative of the user U by himself/herself.

The request unit 254 may request the user U to repeat the name of the other party C and the place of work when the user U utters a predetermined keyword. For example, the storage unit 24 stores request information that associates a predetermined keyword with a message for requesting the user U to repeat. The request information is, for example, information defined on a rule basis such as AIML (Artificial Intelligence Markup Language). For example, in the request information, the message for requesting the repeat of the name and place of employment of the other party C is associated with a keyword related to money (for example, money, 10,000 yen, transfer, etc.) as a predetermined keyword.

In this case, for example, when the user U utters "100,000 yen", the request unit 254 associates "10,000 yen" included in the text data converted from the voice by the speech recognition unit 251 in the request information. As a message for requesting the user U to repeat, the voice output unit 22 is caused to output a message for requesting the repeat of the name of the other party C and the place of work. By doing so, the determination device 2 can request the user U to repeat the name and place of work of the person C at the timing when it becomes necessary to specify the name and place of work of the person C.

The inquiry unit 255 inquires of the specified place of employment via the communication unit 23 whether or not the person with the specified name is enrolled. Specifically, the inquiry unit 255 makes a phone call to the contact information of the specified place of work via the communication unit 23, and asks the employee of the place of work who answered the call whether the person with the specified name is enrolled. Inquires by voice guidance whether or not there is.

If the other party C proposes an existing organization as a place of employment, and the other party C offers a common name, even if the proposed name is a pseudonym, there is a possibility that the person with the said name is enrolled at the place of work. In addition, the greater the number of employees who work at the place of work proposed by the other party C, the higher the probability that the person with the common name proposed by the other party C is employed at the place of work. Therefore, the inquiry unit 255 may inquire of the specified workplace as to whether or not the person with the specified name belongs to the specified organization.

Specifically, first, the identifying unit 253 further identifies, based on the content of the user U's utterance, the organization to which the other party C has proposed and belongs to at the place of work. The identification unit 253 identifies at least the name of the organization among the name of the organization and the contact information of the organization, for example, as the organization to which the employee belongs. Then, the inquiry unit 255 inquires of the place of employment as to whether or not the person with the specified name belongs to the organization. The inquiry unit 255 may inquire of the contact information of the specified organization if the identification unit 253 has specified the contact information of the organization, or if the identification unit 253 has not specified the contact information of the organization, the contact information of the place of employment. You may inquire to the destination (for example, the telephone number of the representative telephone).

Inquiry unit 255 may inquire of the contact corresponding to the organization to which partner C belongs at the place of work when a plurality of contacts are specified based on the name of the place of work. Specifically, first, when specifying a plurality of contact addresses based on the name of the place of work, the specifying unit 253 specifies the organization to which the other party C applies and belongs to at the place of work. Then, the inquiry unit 255 inquires of the contact corresponding to the organization whether or not the person with the specified name belongs to the specified organization among the plurality of contacts.

More specifically, first, when the specifying unit 253 specifies a plurality of contacts based on the name of the place of work, the requesting unit 254 sends the name of the organization to which the other party C belongs at the place of work through the voice output unit 22. Ask user U to repeat the name. The specifying unit 253 specifies the name of the organization based on the content of the utterance by the user U after the requesting unit 254 requests the repetition, and specifies the contact information of the organization based on the specified name of the organization. Then, the inquiry unit 255 inquires of the contact information of the specified organization.

The inquiry unit 255 may inquire of a management device (not shown) that manages the fraud determination service before inquiring of the place of employment. The management device associates and manages the name of a person who has been determined to be unreliable in the past and the place of employment of the person. Specifically, the inquiry unit 255 inquires of the management apparatus whether the name specified by the specifying unit 253 and the place of work specified by the specifying unit 253 are registered. , the place of work specified by the specifying unit 253 is inquired. By doing so, the determination device 2 can obtain the inquiry result early.

The determination unit 256 determines whether or not the other party C is reliable based on the result of the inquiry made by the inquiry unit 255 . Specifically, when the inquiry unit 255 inquires of the place of employment and obtains a reply indicating that the person with the specified name is employed at the specified place of work, the determination unit 256 If it is determined that the person with the specified name is employed at the specified place of work, the other party C is determined to be unreliable.

Further, when the name specified by the specifying unit 253 and the place of work specified by the specifying unit 253 are registered as a result of the inquiry made by the inquiry unit 255 to the management apparatus, the determination unit 256 determines that the partner C is not reliable. I judge. If the identification unit 253 cannot identify the contact information of the place of work, the determination unit 256 may determine that the partner C is unreliable, or may not execute the determination process.

By the way, there is a possibility that the other party C may falsely state the name of a person who actually works for the company. Therefore, it is desirable that the determination device 2 determines whether or not the other party C is reliable based on other contents offered by the other party C in addition to the name and place of employment offered by the other party C. Therefore, the determining unit 256 may determine the reliability of the other party C based on whether or not the work of the other party C is included in the business of the place of employment.

Specifically, first, the identification unit 253 further identifies the matter of the other party C based on the content of the user U's utterance. The inquiry unit 255 inquires of the place of employment as to whether or not the identified matter is included in the work of the place of employment. Then, when the inquiry unit 255 obtains an answer indicating that the specified business is included in the work of the employer, the determination unit 256 determines that the other party C is reliable, If no response indicating that the requested business is included in the work of the company, it is determined that the other party C is unreliable. By doing so, for example, even if the other party C falsely declares the name of a person who actually works at the company, if the purpose of the request is fraud, the company's business Since there is a high probability of obtaining an answer indicating that the partner C is not included in the above, the determination device 2 can improve the accuracy of determining whether or not the partner C is reliable.

The presentation unit 257 presents the presentation information based on the determination result of the determination unit 256 to the user U via the audio output unit 22 . Specifically, when the determination unit 256 determines that the other party C is reliable, the presentation unit 257 presents the user U with presentation information indicating that the continuation of the call is recommended. If it is determined that C is unreliable, the user U is presented with presentation information that recommends terminating the call.

If the determination unit 256 does not execute determination processing because the identification unit 253 could not identify the contact information of the employer, the presentation unit 257 presents the user U with presentation information indicating that the end of the call is recommended. good too. The presentation unit 257 may present the presentation information to the user U by displaying the presentation information on a display unit (not shown).

The recording management unit 258 causes the storage unit 24 to store the call information of the call with the other party C when the determination unit 256 determines that the other party C is unreliable. For example, the recording management unit 258 causes the storage unit 24 to store call information in which the voice of the user U acquired by the voice acquisition unit 21 is recorded as a call with the other party C. FIG. For example, the determination device 2 is provided with a button (not shown), and when the user U presses the button, the recording management unit 258 may reproduce the recorded voice via the voice output unit 22 . By presenting the voice recorded in this manner to the police or the like by the user U, the determination device 2 can reduce the spread of damage due to fraud using the name and place of employment provided to the user U by the other party C.

[Handling inquiries to employers]
Next, the flow of processing by the inquiry unit 255 to inquire of the specified place of employment will be described. FIG. 3 is a flowchart showing an example of the flow of processing by the inquiry unit 255. As shown in FIG. This flow chart is started when the inquiry unit 255 makes a call to the telephone number of the company's representative telephone as the contact address of the specified place of work via the communication unit 23 (S1).

When a staff member at work answers the phone, inquiry section 255 provides voice guidance, saying, "We have received a call from <specified name> of <specified organization name> regarding <specified matter>. .Do you ever call for such matters?If yes, please press "1", if not, please press "0", and finally press "#". ”, and asks the employee who answered the phone to answer by dial-push (S2).

If the staff member who answers the call presses the dial "0" (in the case of dialing 0 in S2), the inquiry unit 255 hangs up and terminates the process (S6). In this case, the determination unit 256 determines that the partner C is unreliable.

On the other hand, when the staff member who answered the phone presses the dial "1" (in the case of dialing 1 in S2), the inquiry unit 255 provides voice guidance saying, "If you say <specified name>, <specified organization If you belong to >, please press "1", if you do not belong, press "0", if you do not know, press "9", and finally press "#" . ”, and asks the employee who answered the phone to answer by dial push (S3).

If the employee who answers the call presses the dial "0" (in the case of dialing 0 in S3), the inquiry unit 255 hangs up the phone and terminates the process (S6). In this case, the determination unit 256 determines that the partner C is unreliable. If the employee who answered the call presses "1" (in the case of dialing 1 in S3), the inquiry unit 255 hangs up and ends the process (S6). In this case, the determination unit 256 determines that the partner C is reliable.

When the staff member who answers the call presses the dial "9" (in the case of dialing "9" in S3), the inquiry unit 255 issues a voice guidance saying, "Do you know the telephone number of <name of the identified organization>? Do you know? If yes, press "1", if not, press "0" and finally "#". ”, and asks the employee who answered the phone to answer by dial-push (S4).

If the staff member who answers the call presses the dial "0" (in the case of dialing 0 in S4), the inquiry unit 255 hangs up the phone and terminates the process (S6). In this case, the determination unit 256 may determine that the other party C is unreliable, or may not perform determination processing.

On the other hand, when the staff member who answered the call presses the dial "1" (in the case of dial 1 in S4), the inquiry unit 255 outputs the voice guidance "Enter the telephone number of <name of the identified organization>, Please press "#" at the end. , and asks the employee who answered the phone to enter the telephone number by dial-push, and obtains the entered telephone number (S5). After that, the inquiry unit 255 hangs up the phone (S6), makes a call to the obtained telephone number, and executes the inquiry process to the place of employment again.

[Processing flow of determination device 2]
Next, the processing flow of the determination device 2 will be described. FIG. 4 is a flowchart showing the flow of processing by the determination device 2. As shown in FIG. This flowchart starts when the detection unit 252 detects that the user U starts a call with the other party C using the communication device 1 based on the content of the user U's speech (S11).

After the detecting unit 252 detects that the user U starts talking to the other party C, the specifying unit 253 determines the name offered by the other party C and the place of work offered by the other party C based on the contents of the user U's speech. is specified (S12). The inquiry unit 255 inquires of the specified place of employment via the communication unit 23 whether or not the person with the specified name is enrolled (S13).

The determination unit 256 determines whether or not the partner C is reliable based on the result of the inquiry made by the inquiry unit 255 (S14). Specifically, when the inquiry unit 255 inquires of the place of employment and obtains a reply indicating that the person with the specified name is employed at the specified place of work, the determination unit 256 If it is determined that the person with the specified name is employed at the specified place of work, the other party C is determined to be unreliable.

Then, the presentation unit 257 presents the presentation information based on the result determined by the determination unit 256 to the user U via the audio output unit 22 (S15). Specifically, when the determination unit 256 determines that the other party C is reliable, the presentation unit 257 presents the user U with presentation information indicating that the continuation of the call is recommended. If it is determined that C is unreliable, the user U is presented with presentation information that recommends terminating the call.

[Modification]
In the above description, an example in which the determination device 2 acquires voice via the voice acquisition unit 21 has been described, but the present invention is not limited to this. For example, the determination device 2 may acquire the voice of a call through the mouthpiece of the communication device 1 by connecting to the communication device 1 by wire or wirelessly. In this case, the voice recognition unit 251 may recognize the user U's voice and the other party's C voice. Further, the determination device 2 may present the presentation information to the user U through the earpiece of the communication device 1 .

[Effects of this embodiment]
As described above, after the user U starts a call with the other party C using the communication device 1, the determination device 2 identifies the name offered by the other party C and the place of work offered by the other party C, and to inquire at the specified place of employment as to whether or not the person is enrolled. Then, the determination device 2 determines whether or not the partner C is reliable based on the result of the inquiry, and presents the presentation information to the user U based on the determined result. By doing so, the determination device 2 can improve the accuracy of determining whether or not the content of the call is fraudulent. As a result, the determination device 2 can reduce the number of cases of damage caused by fraud.

Although the present invention has been described above using the embodiments, the technical scope of the present invention is not limited to the scope described in the above embodiments, and various modifications and changes are possible within the scope of the gist thereof. be. For example, all or part of the device can be functionally or physically distributed and integrated in arbitrary units. In addition, new embodiments resulting from arbitrary combinations of multiple embodiments are also included in the embodiments of the present invention. The effect of the new embodiment caused by the combination has the effect of the original embodiment.

1 communication device 2 determination device 21 voice acquisition unit 22 voice output unit 23 communication unit 24 storage unit 25 control unit 251 voice recognition unit 252 detection unit 253 identification unit 254 request unit 255 inquiry unit 256 determination unit 257 presentation unit 258 recording management unit C Other party I Microphone O Speaker S Judgment system U User

Claims (11)

a detection unit that detects that a user starts a call with the other party using a communication device capable of communicating with the other party at a location different from the user;
After the detection unit detects that the call is started, the name offered by the other party and the name of the place of work offered by the other party are specified, and based on the specified name of the place of work, contacting the place of work a specifying part that specifies a destination ;
an inquiry unit that inquires of the contact as to whether or not the person with the name is enrolled;
a determination unit that determines whether or not the partner is reliable based on the result of the inquiry made by the inquiry unit;
a presentation unit that presents to the user presentation information based on the result determined by the determination unit;
A determination device having a request unit for requesting the user to repeat the name and the place of work after the detection unit detects that the call is to be started;
The specifying unit specifies the name and the place of work based on the content of the user's speech after the requesting unit requests the repetition.
The determination device according to claim 1. The identification unit further identifies the organization to which the other party belongs at the place of employment,
The inquiry unit inquires of the place of employment as to whether the person with the name belongs to the organization.
The determination device according to claim 1 or 2. The identifying unit identifies the organization when a plurality of contacts are identified based on the name of the place of employment,
The inquiry unit inquires of the contact corresponding to the organization whether or not the person with the name, among the plurality of contacts, belongs to the organization.
The determination device according to claim 3. The determination unit determines that the person with the name is reliable when a response indicating that the person with the name is employed at the place of employment is obtained as a result of the inquiry made by the inquiry unit, and determines that the person is reliable. If a response indicating that the person is enrolled at the place of employment is not obtained, it is determined that the person is unreliable.
The determination device according to any one of claims 1 to 4. The specifying unit further specifies the business of the other party,
The inquiry unit inquires whether the matter is included in the business of the place of employment;
The determining unit determines that the other party is reliable when a response indicating that the matter is included in the work of the employer is obtained as a result of the inquiry by the inquiry unit, and the matter is If an answer indicating that it is included in the work of the place of employment is not obtained, it is determined that the other party is unreliable.
The determination device according to any one of claims 1 to 5. The presenting unit presents the presentation information indicating that the continuation of the call is recommended to the user when the determining unit determines that the other party is reliable, and the determining unit determines whether the other party is reliable. If it is determined that there is no call, presenting the user with the presentation information indicating that the end of the call is recommended;
The determination device according to any one of claims 1 to 6. Further comprising a recording management unit that stores call information obtained by recording the call with the other party in a storage unit when the determination unit determines that the other party is unreliable,
The determination device according to any one of claims 1 to 7. The inquiry unit sends the name specified by the specifying unit and the Inquiring whether or not the place of employment is registered, and if not registered, inquiring of the place of employment identified by the identification unit;
The determination device according to any one of claims 1 to 8. the computer runs
Detecting that a user initiates a call with a party using a communication device capable of communicating with the party at a location different from the user;
identifying the name offered by the other party and the name of the place of work of the other party offered by the other party after detecting that the call has started;
identifying the business contact based on the identified business name;
a step of inquiring whether a person with said name is enrolled in said contact ;
determining the credibility of the other party based on the results of the inquiry;
a step of presenting presentation information based on the determined result to the user;
A determination method having the computer,
A detection unit that detects that the user starts a call with the other party using a communication device that can talk to the other party at a location different from the user,
After the detection unit detects that the call is to be started, the name offered by the other party and the name of the place of work of the other party offered by the other party are specified, and based on the specified name of the place of work, the a specific part that identifies a business contact ;
an inquiry unit that inquires whether or not a person with the name is enrolled in the contact information ;
a determination unit that determines the reliability of the other party based on the result of the inquiry made by the inquiry unit; and a presentation unit that presents the user with presentation information based on the result determined by the determination unit;
A program to function as

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