JP7004983B1 - Phone fraud prevention methods, phone fraud prevention systems, fraud prevention devices, and fraud prevention center devices - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technique capable of determining a telephone fraud according to a user's individual circumstances. SOLUTION: This is a fraud prevention method using a fraud prevention device connected to a user's phone and a fraud prevention center device, wherein the fraud prevention device makes a call to the phone at the fraud prevention center. The fraud prevention center device executes the transfer procedure to transfer to the device, and the fraud prevention center device inputs the call connection procedure for establishing the caller and the call related to the transferred incoming call and the confirmation request to the pre-registered confirmation destination. It is characterized by executing a confirmation request acceptance procedure for accepting an operation and a retransfer procedure for transferring a connected call to the fraud prevention device when a confirmation result that enables a call connection as a response to the confirmation request is received. .. [Selection diagram] Fig. 1

Description

The present invention relates to a telephone fraud prevention method, a telephone fraud prevention system, a fraud prevention device, and a fraud prevention center device.

Telephone fraud, such as transfer fraud, is on the rise, and countermeasures are desired.

Patent Document 1 discloses "a nuisance call determination support system applied to a call center in which an operator responds on behalf of a customer by receiving a call transferred from a customer". In paragraph [0017] of the same document, "the nuisance call determination support system 10 is connected to the customer's telephone device 2 via a communication line network 1 such as a public telephone line network or a mobile communication network." Described in paragraph [0021], "The data storage device 40 includes a conversation scenario storage unit 46. In the conversation scenario storage unit 46, when the operator receives a transfer call of a telephone call to a customer, the conversation scenario storage unit 46 is provided. Conversation scenario data for answering the phone is stored. "

JP-A-2015-233241

In the technique disclosed in Patent Document 1, the operator determines a nuisance call based on a preset conversation scenario. However, since a conversation scenario common to all users is used, it is not possible to make a judgment according to the user's circumstances.

The present invention has been made in view of the above points, and an object of the present invention is to provide a technique capable of determining a telephone fraud according to a user's individual circumstances.

The present application includes a plurality of means for solving at least a part of the above problems, and examples thereof are as follows.

In order to solve the above problems, the telephone fraud prevention method according to one aspect of the present invention is a telephone fraud prevention method using a fraud prevention device connected to a user's phone and a fraud prevention center device. The fraud prevention device executes a transfer procedure for transferring a call to the phone to the fraud prevention center device, and the fraud prevention center device is a call that establishes a call with the caller for the transferred call. When the connection procedure, the confirmation request acceptance procedure that accepts the input operation of the confirmation request to the pre-registered confirmation destination, and the confirmation result that enables the call connection as a response to the confirmation request are received, the connected call is the fraud. It is characterized by performing a retransfer procedure to transfer to a preventive device.

The fraud prevention device of the present invention receives the call content acquisition procedure for acquiring the call content with the caller related to the call transferred in the re-forwarding procedure and the input operation of the consultation request, and the caller. The telephone number and the contents of the call may be transmitted to the fraud prevention center device, and a consultation reception procedure for transmitting information indicating a consultation request may be executed.

The fraud prevention center device of the present invention executes a blacklist generation procedure for generating a blacklist according to the call content related to the consultation request, and in the call connection procedure, the call not included in the blacklist. It may be characterized by establishing a call with the origin.

In the blacklist generation procedure of the present invention, the generated blacklist is transmitted to the fraud prevention device, and in the transfer procedure of the fraud prevention device, a call from the caller who is not included in the blacklist is called. It may be characterized by forwarding to a fraud prevention center device.

The fraud prevention center device of the present invention executes a confirmation history generation procedure for generating confirmation history information including confirmation result information indicating the confirmation result of the confirmation destination regarding the caller transferred in the transfer procedure. The fraud prevention device generates incoming call history information to the telephone and associates the confirmation result information with the incoming call history generation procedure, and the incoming call history information generated in the incoming call history generation procedure is sent to a notification destination registered in advance. It may be characterized by executing the incoming call history transmission procedure to be transmitted.

Further, in order to solve the above problems, the telephone fraud prevention system according to another aspect of the present invention is a telephone fraud prevention system having a fraud prevention device connected to a customer's phone and a fraud prevention center device. The fraud prevention device includes a transfer unit that transfers an incoming call to the telephone to the fraud prevention center device, and the fraud prevention center device establishes a call source and a call related to the transferred incoming call. When the call connection control unit, the confirmation request receiving unit that accepts the input operation of the confirmation request to the pre-registered confirmation destination, and the confirmation result that enables the call connection as a response to the confirmation request are received, the connected call is sent. It is characterized by including a re-transfer unit for transferring to the fraud prevention device.

Further, in order to solve the above problem, the fraud prevention device according to another aspect of the present invention is a fraud prevention device connected to a customer's telephone, and transfers a call to the telephone to a fraud prevention center device. Call content for acquiring call content between the transfer unit, the call connection control unit that controls the call connection between the caller and the telephone related to the incoming call re-transferred from the fraud prevention center device, and the caller. It is characterized by including an acquisition unit and a consultation reception unit that receives an input operation of a consultation request via an input device and transmits the telephone number of the caller and the call content to the fraud prevention center device. ..

Further, in order to solve the above problems, the fraud prevention center device according to another aspect of the present invention is registered in advance with the call connection control unit that establishes the caller and the call related to the incoming call transferred from the fraud prevention device. When the confirmation request receiving unit that accepts the input operation of the confirmation request to the confirmed destination and the confirmation result that enables the call connection as a response to the confirmation request are received, the connected call is transferred to the fraud prevention device. It is characterized by having a part and.

According to the present invention, it is possible to determine a telephone fraud according to the individual circumstances of the user.

Issues, configurations, and effects other than those described above will be clarified by the description of the following embodiments.

It is a figure which shows an example of the outline of the telephone fraud prevention system. It is a block diagram which shows an example of the functional structure of a telephone fraud prevention system. It is a figure which shows the hardware configuration example of the fraud prevention device. It is a sequence diagram which shows an example of the incoming call acceptance processing in a telephone fraud prevention system. It is a flowchart which shows an example of the transfer necessity determination processing. It is a flowchart which shows an example of the connection possibility judgment processing. It is a flowchart which shows an example of the transfer necessity determination processing. It is a flowchart which shows an example of the transfer necessity determination processing in the 1st modification. It is a block diagram which shows an example of the functional structure of the telephone fraud prevention system in the 2nd modification. It is a figure which shows an example of the data structure of the incoming call history information in the 2nd modification.

Hereinafter, an outline of the embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a diagram showing an example of an outline of the telephone fraud prevention system 1.

In the example shown in this figure, the caller T is the person making the call. The caller T may be the person who commits the fraud by telephone. User S is the other party to the call. That is, the caller T operates the telephone A and makes a call to the telephone B owned by the user S. The user S may be treated as a customer.

A fraud prevention device 10 is connected to the telephone B owned by the user S, and a call made by the telephone A reaches the fraud prevention device 10 via the public telephone network X. The fraud prevention device 10 transfers the call to the fraud prevention center device 20 via the public telephone network X. The fraud prevention center device 20 is a device operated by the operator U, and the operator U speaks with the caller T on behalf of the user S.

When the operator U determines that the caller T is a fraudster, he / she can operate the fraud prevention center device 20 to disconnect the call. Further, the operator U can confirm with the user V, who is the confirmation destination associated with the user S in advance, whether or not the call by the caller T may be connected to the user S. For example, the operator U suspends the call with the caller T, calls the telephone C owned by the user V, and confirms the call. User V is, for example, a relative of User S.

The public telephone network X may be an internet network that enables data communication, and the fraud prevention device 10 accepts a call from the caller T via the internet network and calls the fraud prevention center device 20. May be transferred. The fraud prevention center device 20 may make a call to the telephone C owned by the user V via the Internet network. Further, the fraud prevention center device 20 uses a data transmission service capable of transmitting data to a telephone number, for example, a short message service (hereinafter referred to as “SMS” (short message service)) to the telephone C. It may be the one that sends confirmation information and receives a response. Further, the fraud prevention center device 20 may send confirmation information to the telephone C and receive a response by using e-mail or a social network service.

When the operator U determines that the call with the caller T may be connected to the user S, the fraud prevention center device 20 is operated to re-transfer the call to the fraud prevention device 10. After that, a call is established between the telephone A and the telephone B, and a call is made between the caller T and the user S. For example, the fraud prevention device 10 may record a call between the caller T and the user S.

When the user S wishes to consult about the contents of the call after the call ends, he / she can operate the consultation button 101 included in the fraud prevention device 10. When the consultation button 101 is operated, the fraud prevention device 10 calls the fraud prevention center device 20, and the user S can consult the operator U about the contents of the call. The fraud prevention device 10 may transmit the recorded content of the call with the caller T to the fraud prevention center device 20 via the Internet network.

FIG. 2 is a block diagram showing an example of the functional configuration of the telephone fraud prevention system 1. The telephone fraud prevention system 1 includes a fraud prevention device 10 and a fraud prevention center device 20. Both the fraud prevention device 10 and the fraud prevention center device 20 are connected to the public telephone network X. As described above, the public telephone network X may be an internet network, and the fraud prevention device 10 and the fraud prevention center device 20 are connected to the public telephone network X and an internet network (not shown). You may.

The fraud prevention device 10 includes a processing unit 110, a storage unit 120, an input unit 130, and a communication unit 140. The processing unit 110 comprehensively controls the entire fraud prevention device 10. The storage unit 120 stores information necessary for processing by the processing unit 110. The input unit 130 accepts an input operation via an input device such as the consultation button 101. The communication unit 140 mediates communication between the fraud prevention device 10 and another device connected to the public telephone network X or the Internet network. Further, the communication unit 140 mediates communication between the fraud prevention device 10 and the telephone B.

The processing unit 110 includes a call connection control unit 111, a transfer necessity determination unit 112, a transfer unit 113, a call content acquisition unit 114, and a consultation reception unit 115. The call connection control unit 111 mediates a call connection between the telephone B and another device connected via the public telephone network X. For example, the call connection control unit 111 controls the call connection between the telephone A, which is the call source for the incoming call re-transferred from the fraud prevention device 10, and the telephone B.

The transfer necessity determination unit 112 determines whether or not to transfer the call from the telephone A to the fraud prevention center device 20. For example, if the telephone number of the calling telephone A is unknown, the transfer necessity determination unit 112 determines that the telephone number is not transferred. Further, the transfer necessity determination unit 112 determines that the telephone number of the telephone A is not transferred when it is registered in the telephone directory information created in advance. The transfer unit 113 transfers the call that is determined to be transferred to the fraud prevention center device 20.

The call content acquisition unit 114 acquires the content of the call with the caller. For example, the call content acquisition unit 114 records the voice of the call. Further, for example, the call content acquisition unit 114 generates character data from the voice of the call and stores it in the storage unit 120 as the call content. In this case, the call content acquisition unit 114 generates character data from voice using a known technique. When the call is established with the other party transferred from the fraud prevention center device 20, the call content acquisition unit 114 acquires the call content with the caller related to the transferred call.

The consultation reception unit 115 accepts an input operation of a consultation request via the consultation button 101. When the consultation reception unit 115 receives the input operation of the consultation button 101, the call connection control unit 111 calls the fraud prevention center device 20. The consultation reception unit 115 transmits the telephone number of the calling telephone A, the information indicating the call content acquired by the call content acquisition unit 114, and the information indicating the consultation request to the fraud prevention device 10. You may.

The storage unit 120 stores the telephone directory information 121 and the call information 122. The telephone directory information 121 registers in advance telephone numbers that do not need to be transferred. The call information 122 is information indicating the call content acquired by the call content acquisition unit 114, and may be voice information or character data.

The fraud prevention center device 20 includes a processing unit 210, a storage unit 220, an input unit 230, an output unit 240, and a communication unit 250. The processing unit 210 comprehensively controls the entire fraud prevention center device 20. The storage unit 220 stores information necessary for processing by the processing unit 210. The input unit 230 receives an input operation from the operator U via the input device. The output unit 240 outputs the information stored in the storage unit 220 to an output device such as a display device or a printer. The communication unit 250 mediates communication with other devices connected via the public telephone network X.

The communication unit 250 is connected to a PBX (Private Branch eXchanger) (not shown). The PBX controls the call connection between the anti-fraud device 10 or the telephone A of the caller T and one or more anti-fraud center devices 20. The communication unit 250 may be connected to a mobile gateway instead of the PBX, and the mobile gateway controls data communication between another device connected via the Internet network and one or more fraud prevention center devices 20. It may have been done.

The processing unit 210 includes a call connection control unit 211, a retransfer unit 212, a confirmation request reception unit 213, and a blacklist generation unit 214. The call connection control unit 211 establishes a call between the incoming call received via the PBX and the fraud prevention center device 20. For example, the call connection control unit 211 establishes a call with the telephone A, which is the caller for the incoming call transferred from the fraud prevention device 10. Further, when the call connection control unit 211 receives the input operation indicating the confirmation request, the call connection control unit 211 establishes a call with the telephone C owned by the confirmation destination user V.

Further, when the fraud prevention device 10 accepts the input operation of the consultation request, the call connection control unit 211 establishes a call with the telephone B connected to the fraud prevention device 10. The call connection control unit 211 may establish a call with a caller that is not included in the blacklist information 221 described later.

When the re-forwarding unit 212 receives the input operation of the re-forwarding instruction, the re-forwarding unit 212 transfers the connected call to the fraud prevention device 10. For example, when the retransfer unit 212 receives the confirmation result that enables the call connection as a response to the confirmation request described later, the retransfer unit 212 transfers the connected call to the fraud prevention device 10. When the incoming call is transferred from the fraud prevention device 10 and the operator U determines that confirmation is necessary, the confirmation request receiving unit 213 accepts an operation of inputting a confirmation request to a pre-registered confirmation destination.

The blacklist generation unit 214 generates blacklist information 221 regarding the suspicious caller T based on the input operation from the operator U. When the blacklist generation unit 214 receives an input operation indicating to include in the blacklist based on the content of the call between the caller T and the operator U related to the incoming call transferred from the fraud prevention device 10, the call is made. The telephone number of the telephone A owned by the person T is included in the blacklist information 221.

Further, for example, when the fraud prevention device 10 accepts an input operation indicating a consultation request, the blacklist generation unit 214 performs an input operation indicating that the caller T, who is the call partner related to the consultation request, is included in the blacklist. Upon acceptance, the telephone number of telephone A is included in the blacklist information 221. When the operator U watches the contents of the call and determines that the caller T is suspicious, the operator U performs an input operation so as to include the caller T in the blacklist.

The storage unit 220 stores blacklist information 221, consultation information 222, and confirmation destination information 223. The blacklist information 221 is information including the telephone number of the caller T determined to be suspicious by the operator U. The consultation information 222 is information including the contents of a call transmitted from the fraud prevention device 10 when the consultation request is received from the fraud prevention device 10. The confirmation destination information 223 is information including the contact information of the other party who confirms whether or not the call by the caller T may be connected to the telephone B of the user S. In the confirmation destination information 223, the information that identifies the user S and the contact information of the user V who is the confirmation destination are associated with each other. The contact information of the user V is, for example, the telephone number of the telephone C, but may be an e-mail address capable of contacting the telephone C, account information of a social network service, or the like.

FIG. 3 is a diagram showing a hardware configuration example of the fraud prevention device 10. The fraud prevention device 10 includes an arithmetic unit 11, a memory 12, an external storage device 13, an input IF (Interface) 14, an output IF 15, a communication IF 16, and a storage medium drive device 17, and each component is composed of. It is connected by a bus.

The arithmetic unit 11 is an arithmetic unit such as a CPU (Central Processing Unit), and executes processing according to a program recorded in the memory 12 or the external storage device 13. In the fraud prevention device 10, processing is performed by the arithmetic unit 11 that operates according to the program read out on the memory 12 or the external storage device 13. Each processing unit constituting the processing unit 110 realizes each function by executing a program by the arithmetic unit 11.

The memory 12 is a storage device such as a RAM (Random Access Memory) or a flash memory, and functions as a storage area in which programs and data are temporarily read out. The external storage device 13 is a writable and readable storage medium such as an HDD (Hard Disk Drive), a CD-R (Compact Disc-Recordable), a DVD-RAM (Digital Versatile Disk-Random Access Memory), and a storage media drive. Equipment, etc. The function of the storage unit 120 is realized by the memory 12 or the external storage device 13. The function of the storage unit 120 may be realized by a storage device connected via the communication IF 16.

The input IF 14 is an interface for receiving an input operation from an operator, and is connected to an input device such as a touch panel, a keyboard, a mouse, or a microphone. The output IF 15 is an interface for outputting information to a display device such as an LCD (Liquid Crystal Display) display built in the fraud prevention device 10. In the present embodiment, the telephone B owned by the user S is connected to the input IF 14 or the output IF 15.

The communication IF 16 is an interface for connecting the fraud prevention device 10 to the public telephone network X. The function of the communication unit 140 is realized by the communication IF 16. The storage medium driving device 17 is a device that inputs / outputs information from a portable medium 18 such as a CD (Compact Disk) or a DVD (Digital Versatile Disk).

The processing of each component of the fraud prevention device 10 may be executed by one hardware or may be executed by a plurality of hardware. Further, the processing of each component of the fraud prevention device 10 may be realized by one program or may be realized by a plurality of programs.

Further, since the hardware configuration of the fraud prevention center device 20 is the same as that of the fraud prevention device 10, the description thereof will be omitted. A PBX or a mobile gateway is connected to the communication IF of the fraud prevention center device 20.

FIG. 4 is a sequence diagram showing an example of incoming call acceptance processing in the telephone fraud prevention system 1.

First, the call connection control unit 111 of the fraud prevention device 10 accepts incoming calls (step S11).

Next, the transfer necessity determination unit 112 of the fraud prevention device 10 determines the transfer necessity (step S12). The process of this step will be described in detail later.

If it is determined in step S12 that a transfer is required, the transfer unit 113 transfers the incoming call to the fraud prevention center device 20 (step S13). Specifically, the transfer unit 113 does not establish the call received by the call connection control unit 111 in step S11, and transfers the call to the fraud prevention center device 20. The transfer unit 113 may transfer to the fraud prevention device 10 after establishing a call between the telephone A and the telephone B. In that case, a voice indicating that the transfer is in progress may be transmitted to the calling telephone A.

Next, the re-forwarding unit 212 of the fraud prevention center device 20 determines whether or not the connection is possible (step S14). In this step, the re-forwarding unit 212 determines whether or not the incoming call received by the fraud prevention device 10 in step S11 can be re-forwarded to the telephone B of the user S, but the details will be described later.

If it is determined in step S14 that re-forwarding is possible, the re-transfer unit 212 re-transfers the incoming call to the fraud prevention device 10 (step S15). If it is determined in step S14 that re-forwarding is possible, a call is established between the fraud prevention center device 20 and the calling telephone A. The retransfer unit 212 transfers the established call.

Next, the call connection control unit 111 of the fraud prevention device 10 connects the calls (step S16). Specifically, the call connection control unit 111 connects the call transferred from the fraud prevention center device 20 in step S15 to the telephone B. As a result, the telephone B executes an operation of calling the user S (ringing a ringing tone, displaying a screen indicating that the call is in progress, etc.). When the user S operates the telephone B, a call is established, and a call between the user S and the caller T who operates the telephone A of the calling source becomes possible. After that, the processing unit 110 of the fraud prevention device 10 and the processing unit 210 of the fraud prevention center device 20 end the processing of this sequence diagram.

FIG. 5 is a flowchart showing an example of transfer necessity determination processing. The process of this flowchart describes in more detail the process performed in step S12 of FIG.

First, the transfer necessity determination unit 112 of the fraud prevention device 10 determines whether or not the telephone number of the caller has been acquired (step S121). Specifically, the transfer necessity determination unit 112 determines whether or not the information indicating the telephone number of the telephone A of the calling source is included in the incoming call received in step S11 of FIG. When the telephone number A is set to notify the telephone number, the transfer necessity determination unit 112 can acquire the telephone number related to the incoming call.

When the transfer necessity determination unit 112 determines that the telephone number of the caller has been acquired (when "YES" in step S121), the transfer necessity determination unit 112 has the telephone number in the telephone directory information 121. It is determined whether or not (step S122). Specifically, the transfer necessity determination unit 112 refers to the telephone directory information 121 using the telephone directory acquired in step S121, and determines whether or not the telephone directory of the calling source is included in the telephone directory information 121. judge.

When the transfer necessity determination unit 112 determines that the telephone directory information 121 has a telephone number (when "YES" in step S122), the transfer necessity determination unit 112 determines that transfer is unnecessary and connects the call. (Step S123). When the transfer necessity determination unit 112 determines that the transfer is unnecessary, the call connection control unit 111 connects the telephone calls between the telephone A and the telephone B. That is, the telephone B executes the operation of calling the user S. After that, the processing unit 110 ends the processing of this flowchart.

When the transfer necessity determination unit 112 determines that the telephone number of the caller has not been acquired (when "NO" in step S121), the transfer necessity determination unit 112 establishes the call and notifies the number. A prompting voice is output (step S125).

Next, the call connection control unit 111 disconnects the call (step S126). After that, the processing unit 110 ends the processing of this flowchart.

When the transfer necessity determination unit 112 determines that the telephone directory information 121 does not have a telephone number (when "NO" in step S122), the transfer necessity determination unit 112 determines that transfer is necessary (step S124). After that, the process proceeds to step S13 of FIG. 4, and the transfer unit 113 transfers the incoming call to the fraud prevention center device 20.

FIG. 6 is a flowchart showing an example of the connection availability determination process. The process of this flowchart describes in more detail the process performed in step S14 of FIG.

First, the re-forwarding unit 212 of the fraud prevention center device 20 determines whether or not there is a telephone number in the blacklist (step S151). Specifically, the retransfer unit 212 refers to the blacklist information 221 using the telephone number of the calling telephone A acquired in step S121 of FIG. 5, and whether or not the telephone number is on the blacklist. To judge.

When the retransfer unit 212 determines that the telephone number is not in the blacklist information 221 (when "NO" in step S151), the call connection control unit 211 establishes the call (step S152). Specifically, the call connection control unit 211 establishes a call between the fraud prevention center device 20 and the telephone A. That is, it is possible to make a call between the caller T and the operator U.

Next, the confirmation request receiving unit 213 determines whether or not the input of the confirmation request has been accepted (step S153). When the operator U determines that confirmation is necessary as a result of talking with the caller T, he / she performs an input operation of a confirmation request to an input device (not shown). The confirmation request receiving unit 213 determines whether or not the input operation has been accepted.

When the confirmation request receiving unit 213 determines that the input of the confirmation request is not accepted (when "NO" in step S153), the confirmation request receiving unit 213 proceeds with the process to step S157 described later.

When the confirmation request receiving unit 213 determines that the input of the confirmation request has been accepted (when "YES" in step S153), the call connection control unit 211 puts the call on hold (step S154). That is, the call connection control unit 211 puts the call with the telephone A on hold and outputs a voice or the like indicating that the call is on hold to the telephone A.

Next, the confirmation request receiving unit 213 calls to the registered confirmation destination and establishes the call (step S155). Specifically, the confirmation request receiving unit 213 refers to the confirmation destination information 223 using the information indicating the user S having the fraud prevention device 10 that forwarded the incoming call in step S13 of FIG. 4, and the corresponding user V Identify the contact phone number. After that, the call connection control unit 211 calls the telephone number of the user V and establishes a call with the telephone C.

Next, the call connection control unit 211 disconnects the call after confirmation (step S156). Specifically, the operator U talks to the user V and confirms whether the call by the caller T may be connected. After confirmation, the operator U inputs a call disconnection instruction to the input device of the fraud prevention center device 20. When the call connection control unit 211 receives the input operation of the disconnection instruction, the call connection control unit 211 disconnects the call between the fraud prevention center device 20 and the telephone C.

As described above, the confirmation to the telephone C may be performed via the Internet network. In that case, the confirmation request receiving unit 213 transmits information describing the contents to be confirmed to the telephone C in step S155. In step S156, the confirmation request receiving unit 213 receives information indicating a response to the confirmation request.

Next, the retransfer unit 212 determines whether or not the input of the transfer instruction has been accepted (step S157). When the operator U determines that the call by the caller T may be connected to the user S, the operator U inputs a transfer instruction to the fraud prevention center device 20. The retransfer unit 212 determines whether or not the input operation has been accepted. In step S155, when the confirmation request receiving unit 213 receives the input of the confirmation result that enables the call connection, the retransfer unit 212 treats that the input operation of the transfer instruction has been performed.

When the retransfer unit 212 determines that the input of the transfer instruction is not accepted (when "NO" in step S157), the call connection control unit 211 determines whether or not the input of the disconnection instruction has been accepted (step). S158). Specifically, when the operator U performs an operation of inputting a disconnection instruction to disconnect the call with the caller T, the call connection control unit 211 treats it as accepting the input of the disconnection instruction. When the call connection control unit 211 determines that the input of the disconnection instruction is not accepted (when "NO" in step S158), the processing unit 210 shifts the processing to step S153.

When it is determined that the call connection control unit 211 has accepted the input operation of the disconnection instruction (when "YES" in step S158), the call connection control unit 211 disconnects the call (step S159). Specifically, the call connection control unit 211 disconnects the established call from the calling telephone telephone A. The call connection control unit 211 then ends the processing of this flowchart.

After the processing of this flowchart is completed, the blacklist generation unit 214 may generate a blacklist by using the telephone number of the telephone A which is the other party of the disconnection instruction.

In step S151, when the retransfer unit 212 determines that the telephone number is in the blacklist (when "YES" in step S151), the call connection control unit 211 establishes a call and emits a voice indicating that the connection cannot be established. Output (step S160).

Since the process performed in step S161 is the same as the process performed in step S159, the description thereof will be omitted. The call connection control unit 211 then ends the processing of this flowchart.

In step S157, when it is determined that the retransfer unit 212 has received the input of the transfer instruction (when "YES" in step S157), the retransfer unit 212 advances the process to step S15 of FIG. That is, the re-transfer unit 212 re-transfers the call to the fraud prevention device 10 in response to the transfer instruction.

The call connection control unit 211 of the fraud prevention center device 20 receives the input of the transfer instruction in step S157, and after the call is re-transferred in step S15 of FIG. 4, after a predetermined period has elapsed, the fraud prevention device 10 is contacted. You may inquire about the result. In that case, the call connection control unit 211 makes a call to the fraud prevention device 10. After the call is established between the fraud prevention center device 20 and the fraud prevention device 10, the operator U calls the user S and inquires about the result of the call with the caller T. When the operator U determines that the caller T is a suspicious person, the blacklist generation unit 214 can include the telephone number of the caller T in the blacklist information 221 based on the input operation of the operator U. ..

As described above, according to the present embodiment, it is possible to confirm whether or not the connection is possible with the confirmation destination registered in advance as necessary, so that it is possible to respond according to the individual circumstances of the user. Further, when the confirmation result of enabling the call connection is received, the established call can be transferred to the fraud prevention device 10, so that the telephone A and the telephone B can be connected without taking the trouble of calling again. And the convenience is improved.

FIG. 7 is a flowchart showing an example of transfer necessity determination processing. When the user S talks to the caller T and wants to talk about the contents of the call after the call is disconnected, he / she can talk to the operator U. Before the start of processing in this flowchart, the content of the call between the user S and the caller T is recorded in the fraud prevention device 10.

First, the consultation reception unit 115 of the fraud prevention device 10 accepts the selection of the consultation button 101 (step S21). Specifically, when the consultation button 101 is operated by the user S, the consultation reception unit 115 detects the selection of the consultation button 101.

Next, the consultation reception unit 115 identifies the telephone number of the other party and the content of the call (step S22). The consultation reception unit 115 refers to the call history stored in the area (not shown) of the storage unit 120, and identifies the telephone number of the telephone A of the caller T who is the caller. Further, the consultation reception unit 115 refers to the call information 122 and identifies the information indicating the call content generated at the latest timing. The consultation reception unit 115 may display a plurality of call histories stored in the storage unit 120 on a display (not shown) and accept the selection of the call history to be consulted.

Next, the consultation reception unit 115 transmits the telephone number and the contents of the call to the fraud prevention center device 20 (step S23). Specifically, the consultation reception unit 115 transmits the telephone number of the caller T specified in step S22, the content of the call, and the telephone number of the telephone B to the fraud prevention center device 20 via the Internet network. ..

After that, the call connection control unit 111 makes a call to the fraud prevention center device 20 (step S24). The processing unit 210 of the fraud prevention center device 20 that has received the call uses the telephone number of the telephone B included in the information indicating the call to determine the telephone number and the content of the call to be consulted. Identify. When the call between the telephone B and the fraud prevention center device 20 is established, the operator U can watch the contents of the call and determine whether or not the other party is a suspicious person. After that, the processing unit 110 ends the processing of this flowchart.

As described above, in the present embodiment, the user S can consult with another person about the contents of the call by a simple operation. As a result, even if it is difficult to determine whether or not the person is a suspicious person, the knowledge of another person can be obtained by a simple operation, which can contribute to the prevention of fraudulent damage and the user S. Can get a sense of security.

The operator U of the fraud prevention center device 20 that has received the consultation may update the blacklist information 221 based on the content of the consultation. In that case, for example, the blacklist generation unit 214 can include the telephone number of the caller involved in the consultation in the blacklist information 221 based on the input operation of the operator U.

<First modification>

Next, a first modification of the present embodiment will be described. In this modification, the blacklist information 221 generated by the blacklist generation unit 214 of the fraud prevention center device 20 is transmitted to the fraud prevention device 10. The fraud prevention device 10 determines whether or not the call partner not included in the received blacklist information 221 needs to be transferred to the fraud prevention center device 20. Hereinafter, the points different from the above-described embodiment will be described.

FIG. 8 is a flowchart showing an example of the transfer necessity determination process in the first modification. Before the start of this process, the fraud prevention device 10 that executes this process stores the blacklist information 221 transmitted from the fraud prevention center device 20 in the storage unit 120.

In step S121, when the transfer necessity determination unit 112 determines that the telephone number of the calling source has been acquired (when "YES" in step S121), the transfer necessity determination unit 112 puts the telephone number on the blacklist. It is determined whether or not there is (step S1211). The transfer necessity determination unit 112 refers to the blacklist information 221 received before the start of this process, and determines whether or not the telephone number acquired in step S121 is included in the blacklist information 221.

When the transfer necessity determination unit 112 determines that the telephone number is in the blacklist (when "YES" in step S1211), the transfer necessity determination unit 112 executes the process of step S122.

When the transfer necessity determination unit 112 determines that there is no telephone number in the blacklist (when "NO" in step S1211), the transfer necessity determination unit 112 establishes a call and sounds a voice indicating that the connection cannot be established. Output (step S1212). Next, since the process performed in step S1213 is the same as the process performed in step S126, the description thereof will be omitted.

According to this modification, the transfer necessity determination unit 112 of the fraud prevention device 10 transfers the incoming call from the caller not included in the blacklist information 221 to the fraud prevention center device 20. That is, since the determination of transferability is executed by each fraud prevention device 10 based on the blacklist information 221 generated by the fraud prevention center device 20, the call of the caller T included in the blacklist information 221 is fraudulent. It is possible to prevent transmission to the prevention center device 20 and reduce the load on the network. Further, by periodically uploading the blacklist information 221 to the fraud prevention device 10, the knowledge obtained by the fraud prevention center device 20 can be shared in each fraud prevention device 10, and the damage caused by telephone fraud can be prevented. To contribute.

<Second modification>

Next, a second modification of the present embodiment will be described. In the second modification, the fraud prevention device 10 generates the incoming call history information 123 including the information regarding the call to the telephone B and the information indicating whether or not the call has been confirmed by the confirmer. , Send to the pre-registered notification destination. Hereinafter, the differences from the above-described embodiment and the first modification will be described.

FIG. 9 is a block diagram showing an example of the functional configuration of the telephone fraud prevention system 1 in the second modification. In this modification, when the public telephone network X is not an Internet network, the fraud prevention device 10 and the fraud prevention center device 20 are communicably connected by an Internet network (not shown).

The processing unit 110 of the fraud prevention device 10 in this modification includes a call connection control unit 111, a transfer necessity determination unit 112, a transfer unit 113, a call content acquisition unit 114, a consultation reception unit 115, and an incoming call. It includes a history generation unit 116 and an incoming call history transmission unit 117. The incoming call history generation unit 116 generates the incoming call history information 123 regarding the call source to the telephone B. The confirmation history generation unit 215, which will be described later, of the fraud prevention center device 20 generates confirmation history information including confirmation result information when a confirmation result is obtained regarding a call to the telephone B transferred to the fraud prevention center device 20. Then, it is transmitted to the fraud prevention device 10. The incoming call history generation unit 116 associates the confirmation result information with the incoming call history information 123.

The incoming call history transmission unit 117 transmits the incoming call history information 123 to the notification destination registered in advance. For example, the incoming call history transmission unit 117 transmits the incoming call history information 123 to the telephone C owned by the user V who is the confirmer.

The storage unit 120 of the fraud prevention device 10 stores the telephone directory information 121, the call information 122, and the incoming call history information 123. The details of the incoming call history information 123 will be described later.

The processing unit 210 of the fraud prevention center device 20 includes a call connection control unit 211, a retransfer unit 212, a confirmation request reception unit 213, a blacklist generation unit 214, and a confirmation history generation unit 215. The confirmation history generation unit 215 registers the telephone number of the calling telephone A and the calling destination related to the telephone number for each telephone number of the telephone B which is the calling destination or for each user S. The confirmation history information is generated by associating the confirmation presence / absence information indicating whether or not the confirmation is made with the information indicating the confirmation result when the confirmation is made. The confirmation history generation unit 215 appropriately transmits the generated confirmation history information to the fraud prevention device 10 connected to the telephone B.

FIG. 10 is a diagram showing an example of the data structure of the incoming call history information 123 in the second modification. In the incoming call history information 123, a record is generated in response to a call to the telephone B. The incoming call history information 123 includes the calling source telephone number 123a, the calling source name 123b, the presence / absence of a call to the confirmation destination 123c, the presence / absence of confirmation 123d, the confirmation result 123e, and the presence / absence of consultation 123f.

The calling source telephone number 123a is the telephone number of the calling source telephone A with respect to the telephone B. The caller name 123b is the name of the caller T. When the telephone directory of the calling source is included in the telephone directory information 121, the incoming call history generation unit 116 includes the name associated with the telephone number in the telephone directory information 121 in the incoming call history information 123 as the calling source name. ..

Further, when the call by the calling source telephone number 123a is transferred to the fraud prevention center device 20, the fraud prevention center device 20 has the information of the caller T related to the calling source telephone number 123a. When the name of the caller T can be specified, the confirmation history generation unit 215 of the fraud prevention center device 20 generates confirmation history information including the name of the caller T and transmits it to the fraud prevention device 10. The incoming call history generation unit 116 includes the name of the caller T included in the received confirmation history information in the incoming call history information 123.

The presence / absence of a call to the confirmation destination 123c, the presence / absence of confirmation 123d, and the confirmation result 123e are information included in the confirmation history information transmitted from the fraud prevention center device 20. The presence / absence of a call to the confirmation destination 123c is information indicating whether or not the confirmation request receiving unit 213 has made a confirmation request for the call of the record, that is, whether or not the telephone C has been called.

The confirmation presence / absence 123d is information indicating whether or not the confirmation destination has been confirmed when the confirmation presence / absence 123d is the information indicating that the call has been made to the confirmation destination. For example, when a call is made to the confirmation destination and the call connection with the telephone C is not established due to the absence of the confirmation destination or the like, the confirmation presence / absence 123d indicates that there is no confirmation. Is stored.

The confirmation result 123e is information indicating a confirmation result when the confirmation presence / absence 123d is information indicating that “confirmation is present”. In the confirmation result 123e, for example, information indicating "retransfer required" or "retransfer not required" is stored.

The consultation presence / absence 123f is information indicating whether or not the fraud prevention center device 20 has been consulted regarding the call related to the record. The incoming call history generation unit 116 stores information indicating "consultation" when the consultation button 101 is selected for the call.

For example, in this modification, before executing step S124 shown in FIG. 5, the call connection control unit 111 refers to the incoming call history information 123 and determines whether or not the telephone number acquired in step S121 has been confirmed in the past. You may judge. In that case, the call connection control unit 111 determines whether or not the confirmer has confirmed the telephone number by referring to the confirmation result 123e related to the telephone number related to the incoming call among the incoming call history information 123. can do. For example, when the confirmation result 123e is "retransfer unnecessary", the call connection control unit 111 does not transfer the incoming call to the fraud prevention center device 20, and outputs a voice indicating that the call cannot be established and connected. After that, the call may be disconnected. That is, the incoming call history information 123 may be used for determining whether or not the transfer to the fraud prevention center device 20 is possible, or may be used for determining whether or not a call between the telephone A and the telephone B may be established.

As a result, the caller T, who has been determined by the confirmer in the past to be unnecessary for re-transfer, is not only not connected to the telephone B, but is also suppressed from being transferred to the fraud prevention center device 20. That is, it is possible to effectively utilize the confirmation by the confirmer and reduce the communication load caused by the transfer.

Further, in the present modification, by notifying the notification destination registered in advance of the incoming call history information 123, the user of the notification destination can refer to the incoming call history including the presence or absence of consultation by the user S. For example, by registering the user S to notify the incoming call history information 123 to a person who is concerned about the damage caused by fraud, the actual state of the incoming call to the user S can be recognized.

Although the embodiments and modifications according to the present invention have been described above, the present invention is not limited to one of the above-described embodiments, and includes various modifications. For example, an example of the above-described embodiment has been described in detail for the sake of clarity of the present invention, and the present invention is not limited to those having all the configurations described here. Further, it is possible to replace a part of the configuration of one example of a certain embodiment with the configuration of another example. It is also possible to add the configuration of another example to the configuration of one example of one embodiment. Further, it is also possible to add / delete / replace a part of the configuration of one example of each embodiment with another configuration. Further, each of the above configurations, functions, processing units, processing means and the like may be realized by hardware by designing a part or all of them by, for example, an integrated circuit. In addition, the control lines and information lines in the figure indicate what is considered necessary for explanation, and do not necessarily indicate all. You can think of almost all configurations as interconnected.

Further, the functional configurations of the fraud prevention device 10 and the fraud prevention center device 20 are classified according to the main processing contents in order to facilitate understanding. The invention of the present application is not limited by the method and name of classification of the components. As described above, the configurations of the fraud prevention device 10 and the fraud prevention center device 20 can be further classified into more components according to the processing content. It can also be categorized so that one component performs more processing.

1: Telephone fraud prevention system, 10: Anti-fraud device, 11: Computational device, 12: Memory, 13: External storage device, 14: Input IF, 15: Output IF, 16: Communication IF, 17: Storage medium drive device, 18: Media, 20: Fraud prevention center device, 110/210: Processing unit, 101: Consultation button, 111/211: Call connection control unit, 112: Transfer necessity determination unit, 113: Transfer unit, 114: Call content acquisition Unit, 115: Consultation reception unit, 116: Incoming call history generation unit, 117: Incoming call history transmission unit, 120/220: Storage unit, 121: Phonebook information, 122: Call information, 123: Incoming call history information, 130/230: Input unit, 140/250: Communication unit, 212: Retransfer unit, 213: Confirmation request reception unit, 214: Blacklist generation unit, 215: Confirmation history generation unit, 221: Blacklist information, 222: Consultation information, 223: Confirmation destination information, 240: Output unit, A / B / C: Telephone, S / V: User, T: Caller, U: Operator, X: Public telephone network

Claims (6)

It is a telephone fraud prevention method using a fraud prevention device connected to a user's phone and a fraud prevention center device.
The fraud prevention device is
Perform a forwarding procedure to forward the incoming call to the phone to the fraud prevention center device.
The fraud prevention center device is
The call connection procedure for establishing the caller and call related to the transferred incoming call, and
Confirmation request acceptance procedure for accepting confirmation request input operations to pre-registered confirmation destinations,
Upon receiving the confirmation result that enables the call connection as a response to the confirmation request, the retransfer procedure for transferring the connected call to the fraud prevention device is executed.
The fraud prevention device is
A call content acquisition procedure for acquiring the call content with the caller related to the call transferred in the re-forwarding procedure, and a call content acquisition procedure.
When the input operation of the consultation request is received, the telephone number of the caller and the call content are transmitted to the fraud prevention center device, and the consultation reception procedure for transmitting the information indicating the consultation request is executed. A featured phone fraud prevention method. The telephone fraud prevention method according to claim 1 .
The fraud prevention center device executes a blacklist generation procedure for generating a blacklist according to the call content related to the consultation request.
A method for preventing telephone fraud, which comprises establishing a call with the caller who is not included in the blacklist in the call connection procedure. The telephone fraud prevention method according to claim 2 .
In the blacklist generation procedure, the generated blacklist is transmitted to the fraud prevention device.
A method for preventing telephone fraud, which comprises forwarding a call from the caller who is not included in the blacklist to the fraud prevention center device in the transfer procedure of the fraud prevention device. The telephone fraud prevention method according to any one of claims 1 to 3 .
The fraud prevention center device executes a confirmation history generation procedure for generating confirmation history information including confirmation result information indicating the confirmation result of the confirmation destination regarding the caller transferred in the transfer procedure.
The fraud prevention device includes an incoming call history generation procedure for generating incoming call history information for the telephone and associating the confirmation result information with the incoming call history information.
A method for preventing telephone fraud, which comprises executing an incoming call history transmission procedure for transmitting the incoming call history information generated in the incoming call history generation procedure to a notification destination registered in advance. A telephone fraud prevention system having a fraud prevention device connected to a customer's phone and a fraud prevention center device.
The fraud prevention device is
A transfer unit for transferring an incoming call to the telephone to the fraud prevention center device is provided.
The fraud prevention center device is
A call connection control unit that establishes a call with a caller related to the transferred incoming call, and
A confirmation request reception unit that accepts input operations for confirmation requests to pre-registered confirmation destinations,
As a response to the confirmation request, it is provided with a re-forwarding unit that transfers the connected call to the fraud prevention device when the confirmation result that enables the call connection is received .
The fraud prevention device is
A call content acquisition unit that acquires the content of a call with the caller related to the call transferred by the retransfer unit, and a call content acquisition unit.
When the input operation of the consultation request is received, the telephone number of the caller and the call content are transmitted to the fraud prevention center device, and the consultation reception unit is provided with information indicating the consultation request. Phone fraud prevention system. A fraud prevention device connected to the customer's phone,
A forwarding unit that forwards incoming calls to the phone to the fraud prevention center device,
A call connection control unit that controls the call connection between the caller and the telephone related to the incoming call re-transferred from the fraud prevention center device.
A call content acquisition unit that acquires the content of a call with the caller,
A fraud prevention device including a consultation reception unit that receives an input operation of a consultation request via an input device and transmits the telephone number of the caller and the call content to the fraud prevention center device. ..

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