WO2022157857A1

WO2022157857A1 - Nuisance call prevention device, nuisance call prevention method, and nuisance call prevention program

Info

Publication number: WO2022157857A1
Application number: PCT/JP2021/001860
Authority: WO
Inventors: 康司谷田; 賢二寺田
Original assignee: 日本電信電話株式会社
Priority date: 2021-01-20
Filing date: 2021-01-20
Publication date: 2022-07-28

Abstract

The present invention comprises: a database (14); a communication control unit (11) which establishes a call between a sender terminal and a receiver terminal (5) when the sender terminal (4) makes a call; a billing unit (3) which requests a fine from the sender terminal when the receiver terminal determines that the call with the sender terminal is a nuisance call; and a registration control unit (13) which registers, in the database, as a blacklist, the sender terminal that is determined to have made the nuisance call. The communication control unit establishes a call with the sender terminal when the fine is paid from the sender terminal.

Description

Nuisance Call Prevention Device, Nuisance Call Prevention Method, and Nuisance Call Prevention Program

The present invention relates to a nuisance call prevention device, a nuisance call prevention method, and a nuisance call prevention program.

As a method to prevent nuisance calls, based on information provided by the police and public institutions, user evaluations, etc., telephone numbers that frequently send nuisance calls are registered in the database as a list of nuisance calls. Methods are known for rejecting incoming calls from numbers.

However, the above method is less effective in reducing nuisance calls. In other words, since the content of the call is unknown when the call arrives, it is necessary to determine whether the call is a nuisance call based on the header information. For a gray call that cannot be determined whether it is a nuisance call, the recipient has to judge whether it is a nuisance call after receiving the call, and the recipient is forced to work hard. Although it is possible to reject all gray calls, there is a possibility that regular calls may be rejected by mistake. Techniques disclosed in

Non-Patent Documents

1 and 2 are known to solve this problem.

In Non-Patent Document 1, when the sender starts a call, the administrator collects a deposit from the sender, and if the called party determines that the call from this sender is a nuisance call, , proposed to prevent nuisance calls by forfeiting deposits. In addition, Non-Patent Document 2 proposes a method of collecting the above-mentioned deposit by using the billing server of the telecommunications carrier and including the deposit in the call charge.

However, in Non-Patent Document 1 mentioned above, it is necessary to collect a deposit from the sender. difficult to collect deposits from senders.

Also, in Non-Patent Document 2, it is necessary for all operators who provide telephone services to modify their billing systems, which incurs a lot of costs. In addition, since the fine set independently by the called party is billed to the called party according to the notice from the called party's user, if the called party has malicious intentions difficult to regulate.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and its object is to provide a nuisance call prevention device, a nuisance call prevention method, and a nuisance call prevention program capable of suppressing nuisance calls. That's what it is.

A nuisance call prevention device according to one aspect of the present invention includes a database, a communication control unit that establishes a call between a sender terminal and a called party terminal when the sender terminal makes a call, and a called party terminal. a billing unit for requesting a fine from the sender terminal when a call with the sender terminal is determined to be a nuisance call; and a registration control unit for registration, wherein the communication control unit prohibits the sender terminal determined to have made the nuisance call from talking with the sender terminal until the fine is paid.

A method for preventing nuisance calls according to one aspect of the present invention includes the steps of: charging the sender terminal when a call with a sender terminal is determined to be a nuisance call by the called party terminal; a step of registering the judged sender terminal in a database as a blacklist; a step of prohibiting the sender terminal judged to have made the nuisance call from calling the sender terminal until a fine is paid; Prepare.

One aspect of the present invention is a nuisance call prevention program for causing a computer to function as the nuisance call prevention device.

According to the present invention, it is possible to suppress nuisance calls.

FIG. 1 is a block diagram showing the configuration of the nuisance call blocking device and its peripherals according to the first embodiment. FIG. 2 is a flow chart showing a processing procedure when starting a call in the nuisance call blocking device according to the first and second embodiments. FIG. 3 is a flow chart showing a processing procedure when ending a call in the nuisance call blocking device according to the first embodiment. FIG. 4 is a block diagram showing the configuration of a nuisance call blocking device and its peripherals according to the second embodiment. FIG. 5 is a flow chart showing a processing procedure for ending a call in the device for preventing unwanted calls according to the second embodiment. FIG. 6 is a block diagram showing the hardware configuration of the nuisance call blocking device according to this embodiment.

[Configuration of the first embodiment]
BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing the configuration of the nuisance call blocking device and its peripherals according to the first embodiment.

As shown in FIG. 1, the nuisance call prevention device 100 according to the first embodiment includes a communication control device 1, a header evaluation section 2, and a billing section 3. The nuisance call prevention device 100 is connected to the sender terminal 4 and the receiver terminal 5 via telephone lines, networks, and the like. In FIG. 1, only one sender terminal 4 and one receiver terminal 5 are shown to avoid complication.

When a call is made from the sender terminal 4, the header evaluation unit 2 evaluates whether the call from the sender terminal 4 is a nuisance call intended for fraud or mischief. Specifically, in order to evaluate the reliability of the call made by the sender's terminal 4, the header evaluation unit 2 calculates a safety level that quantifies the reliability of the call. For example, if the call made by the sender terminal 4 is clearly evaluated as a nuisance call, the security level is set to "0", and if it is clearly evaluated as not a nuisance call, the security level is set to "100". and The header evaluation unit 2 evaluates the security level of the sender terminal 4 within the range of "0 to 100".

As an example of a method of evaluating the degree of safety of the sender terminal 4, phone numbers that have made many nuisance calls in the past are registered in a list of nuisance calls based on information provided by the police and feedback information from users. method can be adopted. If the telephone number of the sender terminal 4 is registered in this list, the header evaluation unit 2 evaluates that the security level of the call from this sender terminal 4 is "0".

As another example, if reliable telephone numbers of relatives, friends, acquaintances, etc. are registered as a safe telephone list, and the telephone number of the sender terminal 4 is registered in this list, this transmission A method can be adopted in which a call made from the user's terminal 4 is evaluated to have a security degree of "100."

Still another example is how the sender terminal 4 makes phone calls, for example, the sender terminal 4 makes frequent calls in a short period of time, or calls are made by changing the last digit of the phone number one by one. A method of evaluating the security level of the sender terminal 4 as "0" can be adopted when the number matches the traffic pattern of nuisance calls.

The header evaluation unit 2 also sets the security level of the call made by the sender terminal 4 to "80" when, for example, one user reports a nuisance call to the sender terminal 4. However, if a plurality of users report nuisance calls, the security level of calls made by this sender terminal 4 is set to "20". The header evaluator 2 also sets a threshold for security. The header evaluation unit 2 sets the threshold to, for example, "60". The header evaluation unit 2 transmits the security level information set as described above to the communication control device 1 .

The charging unit 3 carries out a process of charging a fine to the sender terminal 4 that has been evaluated as a nuisance call by the communication control device 1 . When the fine is paid from the sender terminal 4, the billing unit 3 also performs a process of collecting the fine. The billing unit 3 collects the fine paid at the sender terminal 4 by combining registration information of the blacklist, which will be described later, and an existing payment system such as micropayment using QR code (registered trademark). Collect.

For example, the billing unit 3 presents the sender terminal 4 with the address and password of the fine payment site by SMS or voice guidance. The user of the sender terminal 4 accesses this site and enters the blacklisted phone number and password to obtain the information (QR code, etc.) necessary to pay the fine and pay the fine. be able to.

The communication control device 1 includes a communication control unit 11, an evaluation request unit 12, a registration control unit 13, and a database 14.

The communication control unit 11 controls whether or not to establish a call between the sender terminal 4 and the receiver terminal 5 when the sender terminal 4 calls.

The communication control unit 11 does not establish a call with the callee terminal 5 for the sender terminal 4 whose safety level is evaluated as "0" by the header evaluation unit 2 .

The communication control unit 11 also registers the telephone number of the sender terminal 4 as a blacklist in the database 14, which will be described later, in a case where the security level of the sender terminal 4 is not "0". If the fine is not paid, the call between the sender terminal 4 and the receiver terminal 5 is not established.

If the telephone number of the sender terminal 4 is not registered in the blacklist, the communication control unit 11 also controls the sender terminal 4 and the incoming call according to the numerical value of the degree of safety output from the header evaluation unit 2 described above. determines whether or not to establish a call with the user's terminal 5. Specifically, the communication control unit 11 determines whether the degree of safety output from the header evaluation unit 2 is less than the threshold or greater than or equal to the threshold. The "safety level" is a numerical value of "0 to 100" as described above, and the threshold value is set to "60", for example.

The communication control unit 11 also establishes a call between the sender terminal 4 and the receiver terminal 5 when the security level of the sender terminal 4 is equal to or higher than "60" set as the threshold. The communication control unit 11 also issues a warning notification to the sender terminal 4 in advance when the security degree of the sender terminal 4 is less than "60". A "warning notice" is, for example, guidance such as "If the content of your call is determined to be a nuisance call, a fine will be imposed."

After the call between the sender terminal 4 and the called party terminal 5 is completed, the evaluation request unit 12 informs the called party terminal 5 that the call with the sender terminal 4 is a nuisance call. request an evaluation of whether or not there was. The evaluation requesting unit 12 also acquires the evaluation result transmitted from the called party terminal 5 .

The registration control unit 13 registers the phone number of the sender terminal 4 determined to be a nuisance call and information about this sender terminal 4 in the database 14 as a blacklist. The registration control unit 13 also deletes the sender terminal 4 from the database 14 when notified by the billing unit 3 that the sender terminal 4 registered in the database 14 as a blacklist has paid the fine. . Information on the blacklist is not disclosed to general users for privacy protection.

The database 14 stores and stores, as a blacklist, the telephone number of the sender terminal 4 determined to be a nuisance call by the registration control unit 13 and information related to this sender terminal 4.

[Operation of the first embodiment]
Next, the operation of the nuisance call blocking device 100 according to this embodiment will be described with reference to FIGS. 2 and 3. FIG. FIG. 2 is a flow chart showing a processing procedure at the start of a call, and FIG. 3 is a flow chart showing a processing procedure at the end of a call.

First, the processing procedure at the start of a call will be described with reference to the flowchart shown in FIG.

In step S11, when a call is made from the sender terminal 4, in step S12, the header evaluation unit 2 analyzes the telephone number of the sender terminal 4, adopts the above-described method, and performs the call from the sender terminal 4. is a nuisance call intended for fraud or mischief.

In step S13, when the communication control unit 11 determines that the call from the sender terminal 4 is clearly a nuisance call, that is, when the safety level is evaluated as "0" (S13 ; YES), the call is terminated in step S20. That is, when the call made by the sender terminal 4 is clearly a nuisance call, the call is terminated without establishing a call with the receiver terminal 5. - 特許庁

On the other hand, if it is determined that the call made by the sender terminal 4 is not clearly a nuisance call (S13; NO), in step S14, the communication control unit 11 controls the sender terminal 4 that made the call. is registered in the database 14 as a blacklist. If it is registered (S14; YES), the process proceeds to step S15; otherwise (S14; NO), the process proceeds to step S17.

In step S15, the communication control unit 11 notifies the sender terminal 4 of guidance to the effect that a fine must be paid in order to establish a call with the receiver terminal 5. The user of the sender terminal 4 can pay the fine to the billing unit 3 by a payment system such as micropayment using a QR code. After that, in step S20, the communication control unit 11 ends the call.

On the other hand, if it is determined in step S14 that the telephone number of the sender terminal 4 is not registered in the database 14 as a blacklist, in step S16 the communication control section 11 determines that the security level of the sender terminal 4 is It is determined whether or not it is equal to or greater than a preset threshold. As an example, as described above, the security level of the sender terminal 4 is evaluated using numerical values from "0" to "100", and the threshold is set to "60".

If the degree of safety is less than the threshold (S16; NO), proceed to step S17; otherwise (S16; YES), proceed to step S18.

In step S17, the billing unit 3 tells the sender terminal 4, "If the content of your call is determined to be a nuisance call, you will be registered in the blacklist, and a specified amount of money will be charged to cancel the call." A fine will be imposed.” After notifying the guidance, if the sender terminal 4 accepts the content of this notification and continues the call, the process proceeds to step S18.

In step S18, the communication control unit 11 establishes a call between the sender terminal 4 and the receiver terminal 5.

In step S19, the communication control unit 11 starts a call between the sender terminal 4 and the receiver terminal 5.

Thus, a call is made between the user of the sender's terminal 4 and the user of the receiver's terminal 5.

Next, the processing procedure at the end of the call will be described with reference to the flowchart shown in FIG.

First, in step S30 of FIG. 3, the communication control unit 11 determines whether or not the call between the sender terminal 4 and the receiver terminal 5 has ended.

If the call has ended (S30; YES), in step S31, the notification control unit 11 determines whether or not the sender terminal 4 has been notified of the fine payment guidance. Specifically, it is determined whether or not the process of S18 shown in FIG. 2 has been executed during the call. If guidance has not been notified (S31; NO), this process is terminated.

If the guidance has been notified (S31; YES), the evaluation request unit 12 requests the callee terminal 5 to evaluate the call with the sender terminal 4 in step S32. Specifically, the evaluation requesting unit 12 requests evaluation as to whether or not the call with the sender terminal 4 was a nuisance call intended for fraud or mischief. In response to this request, the user of the callee terminal 5 inputs an evaluation as to whether or not the call was a nuisance call.

In step S33, the evaluation requesting unit 12 acquires information as to whether or not the call from the sender terminal 4 was a nuisance call based on the evaluation result sent from the receiver terminal 5.

In step S34, if the evaluation requesting unit 12 determines that the call is not a nuisance call (S34; NO), this process is terminated.

If the evaluation request unit 12 determines that the call is a nuisance call (S34; YES), the registration control unit 13 registers the sender terminal 4 as a blacklist in the database 14 in step S35.

In this way, it is possible to register in the database 14 as a blacklist the sender terminal determined to be a nuisance call. Further, after the call ends, the registration control unit 13 notifies the sender terminal 4 that the sender is registered in the blacklist. In addition, the billing unit 3 notifies the sender terminal 4 that payment of a fine is required in order to cancel registration of the blacklist. For example, a guidance such as "Your phone number is registered in the blacklist and you cannot make calls unless you pay the fine. The payment method for the fine is XX." The timing of the notification may be immediately after the end of the call, after a certain period of time has passed since the end of the call, at the next call, or the like. By doing so, it is possible to make the user of the sender terminal 4 who has made the nuisance call aware that the call cannot be made unless the fine is paid.

In step S37, the billing unit 3 determines whether or not a fine has been paid from the sender terminal 4.

If the fine is paid by the user of the sender terminal 4 (S37; YES), the registration control unit 13 deletes this sender terminal 4 from the blacklist in step S38. If the user of the sender terminal 4 does not pay the fine (S37; NO), this process is terminated.

[Effect of the first embodiment]
Thus, the nuisance call prevention device 100 according to the first embodiment includes a database, a communication control unit that establishes a call between the sender terminal and the called party terminal when the sender terminal makes a call, When the called party's terminal determines that the call with the sender's terminal is a nuisance call, the billing section demands a fine from the sender's terminal, and the sender's terminal that is determined as a nuisance call is blacklisted. and a registration control unit that registers in the database as a nuisance call. be.

In this embodiment, the sender's terminal 4 registered in the database 14 as a blacklist is prohibited from talking to the receiver's terminal 5 unless a fine is paid. Therefore, it is possible to prevent a malicious user of the sender terminal 4 from making a nuisance call.

In this embodiment, the sender terminal 4 registered in the blacklist cannot make a call to the receiver terminal 5 unless a fine is paid. As a result, it can be expected to reduce the number of nuisance calls.

In addition, in this embodiment, the charging unit 3 uses a system such as micropayment to collect fines from the sender terminal of the nuisance call. It will be easier to pay fines.

In addition, users who do not pay the fine will not be able to make calls to all users of this service. It becomes possible. As a result, it is possible to suppress nuisance calls.

In addition, unlike the conventional deposit method, this embodiment has the advantage that it is not necessary to introduce it to all users regardless of whether or not they have made nuisance calls. In addition, there is an advantage that it is not necessary to enter into a contractual relationship with all users via a telephone service provider in order to collect fines from users who have made nuisance calls.

[Configuration of Second Embodiment]
Next, a second embodiment will be described. FIG. 4 is a block diagram showing the configuration of a nuisance call blocking device according to the second embodiment. As shown in FIG. 4, the nuisance call blocking device 100a according to the second embodiment differs from the first embodiment described above in that the communication control device 1 includes a call content evaluation unit 15. FIG. Other configurations are the same as those of the nuisance call prevention device 100 shown in FIG.

When a call is established between the sender terminal 4 and the called party terminal 5 and the call is exchanged between the sender and the called party, the call content evaluation unit 15 uses technology such as voice recognition technology to It is determined whether or not the content of the call is a nuisance call.

As an example, the call content evaluation unit 15 analyzes voiceprint analysis of voice data of a call exchanged between the user of the sender terminal 4 and the user of the receiver terminal 5, and determines whether the user who has made a nuisance call in the past is It is determined whether or not. When the call content evaluation unit 15 determines that the user has made a nuisance call in the past, the call is determined to be a nuisance call.

As another example, the call content evaluation unit 15 converts the sender's call into text data using sound pattern analysis for evaluating fraudulent calls from sound patterns specific to Robocall, or speech recognition technology, and converts this text data into text data. Analyze content to evaluate spam calls.

[Operation of Second Embodiment]
Next, the operation of the nuisance call blocking device 100a according to the second embodiment will be described. The processing procedure at the start of a call is the same as in FIG. 2 described above, so a description thereof will be omitted.

FIG. 5 is a flow chart showing a processing procedure when a call ends in the second embodiment. Since the processes shown in steps S50 to S54 and step S55 shown in FIG. 5 are the same as the processes shown in steps S30 to S34 and step S35 shown in FIG. 3, detailed description thereof will be omitted. The second embodiment differs from the above-described first embodiment in that the process of step S54a is added.

In step S54 shown in FIG. 5, the evaluation request unit 12 determines whether or not the call was a nuisance call, and if it is determined to be a nuisance call (S54; YES), the content of the call is evaluated in step S54a. The unit 15 evaluates the possibility that the content of the call is a nuisance call using voice recognition processing based on the content of the call.

If the call content evaluation unit 15 determines that the call content is highly likely to be a nuisance call (S54a; YES), the process proceeds to step S55; otherwise (S54a; NO), this process exit. The processing after step S55 is the same as the processing after step S35 shown in FIG.

[Effect of Second Embodiment]
As described above, in the nuisance call prevention device 100a according to the second embodiment, even if the called party terminal 5 determines that the call is a nuisance call, the call content evaluation unit 15 determines that the call is unlikely to be a nuisance call. If determined, this call is not determined as a nuisance call.

Therefore, even if the user of the called party terminal 5 misunderstands or maliciously determines that the call is a nuisance call, the call is not determined as a nuisance call, so the sender terminal 4 is unwillingly registered as a blacklist. can be avoided.

As shown in FIG. 6, the nuisance

call prevention devices

100 and 100a of the present embodiment described above include, for example, a CPU (Central Processing Unit, processor) 901, a memory 902, and a storage 903 (HDD: HardDisk Drive, SSD: Solid State Drive), communication device 904, input device 905, and output device 906 can be used. Memory 902 and storage 903 are storage devices. In this computer system, CPU 901 executes a predetermined program loaded on memory 902 to realize each function of nuisance

call blocking devices

100 and 100a.

It should be noted that the nuisance

call blocking devices

100 and 100a may be implemented by one computer or may be implemented by a plurality of computers. Also, the nuisance

call prevention devices

100 and 100a may be virtual machines implemented on a computer.

The program for the nuisance

call prevention device

100, 100a must be stored in a computer-readable recording medium such as HDD, SSD, USB (Universal Serial Bus) memory, CD (Compact Disc), DVD (Digital Versatile Disc). can also be distributed over a network.

It should be noted that the present invention is not limited to the above embodiments, and many modifications are possible within the scope of the gist.

1 communication control unit 2 header evaluation unit 3 billing unit 4 sender terminal 5 receiver terminal 11 communication control unit 12 evaluation request unit 13 registration control unit 14 database 15 call

content evaluation unit

100, 100a nuisance call prevention device

Claims

a database;
a communication control unit that establishes a call between the sender terminal and the called party terminal when the sender terminal makes a call;
a billing unit for requesting a fine from the sender terminal when the receiver terminal determines that the call with the sender terminal is a nuisance call;
a registration control unit for registering the sender terminal determined as the nuisance call in the database as a blacklist;
with
The nuisance call prevention device, wherein the communication control unit prohibits a call to the sender terminal determined to have made the nuisance call until the fine is paid.
a header evaluation unit that evaluates the reliability of the sender terminal,
The communication control unit notifies the sender terminal that a fine will be charged if a safety level obtained by quantifying the reliability of the sender terminal is lower than a preset threshold; 2. A nuisance call prevention device according to claim 1, wherein a call between the sender terminal and the receiver terminal is established when the sender terminal approves the notification.
　The nuisance call prevention device according to claim 2, wherein the registration control unit deletes a sender terminal registered in the database from the database when the fine is paid from the sender terminal.
The device for preventing nuisance calls according to any one of claims 1 to 3, wherein the billing unit uses micropayment to collect fines from the sender's terminal.
a call content evaluation unit that analyzes the call content between the sender terminal and the called party terminal using voice recognition technology and evaluates whether or not it is a nuisance call,
The registration control unit
Even if the called party terminal determines that the call with the sender terminal is a nuisance call, if the call content evaluation unit evaluates that the call is not a nuisance call, the called party terminal is blacked out. The nuisance call prevention device according to any one of claims 1 to 4, which is not registered in the list.
a step of charging the sender terminal when the called party terminal determines that the call with the sender terminal is a nuisance call;
a step of registering the sender terminal determined as the nuisance call in a database as a blacklist;
prohibiting the sender terminal determined to have made the nuisance call from calling the sender terminal until a fine is paid;
A method for preventing nuisance calls, comprising:
A nuisance call prevention program for implementing the nuisance call prevention device according to any one of claims 1 to 5 on a computer.