JP6365973B2 - Communication control device and communication control program - Google Patents

Description

  The present invention relates to a communication control device and a communication control program.

  As a conventional technique for preventing malicious calls, when an identifier included in a call is included in a black list or a gray list, call connection is controlled and voice guidance or a short message service (SMS) is sent to the receiving terminal. ) Is known (for example, see Patent Document 1).

JP2013-5205A

However, the malicious telephone prevention system that warns only the incoming terminal cannot sufficiently suppress malicious telephones such as fraudulent telephones.
Therefore, the present invention has been made in view of the above circumstances, and an object thereof is to provide a communication control device and a communication control program that can further reduce fraudulent calls.

  [1] In order to solve the above-described problem, a communication control apparatus according to an aspect of the present invention obtains a calling party number from a signal transmitted from an exchange that has received an incoming signal from a calling terminal. The fraud suspicion number determination unit for determining whether the acquisition unit, the caller number acquired by the caller number acquisition unit is a fraud suspicion number that is a suspicion of fraud, and the fraud suspicion number determination unit When it is determined that the calling party number is the fraud suspicious number, the incoming communication control unit that transmits a predetermined incoming signal to the receiving terminal, and the fraud suspicious number determining unit determines that the calling party number is the fraud A transmission-side communication control unit that transmits a predetermined transmission-side signal to the transmission-side terminal when the suspicious number is determined.

[2] In the communication control device according to [1], a whitelist storage unit that stores a whitelist that is a list of numbers that the callee terminal accepts call connection, and the callee terminal prohibits call connection. A black list storage unit that stores a black list that is a list of numbers, and a danger number list storage unit that stores a danger number list that is a list of predetermined danger numbers, and the fraud alleged number determination unit includes: Comparison between the number in the white list stored in the white list storage unit, the black list stored in the black list storage unit, or the number in the danger number list stored in the danger number list storage unit and the calling party number On the basis of whether or not the calling party number is the alleged fraudulent number.
[3] In the communication control device according to [2], the risk number is determined based on a predetermined criterion from the black list stored in the black list storage unit and the white list stored in the white list storage unit. And a danger number list generation unit that includes the danger number in the danger number list and stores it in the danger number list storage unit.
[4] In the communication control device according to [2] above, a call history list storage unit that stores a call history list that represents a call history of each receiving terminal for a plurality of receiving terminals, and the call history list storage unit A danger number list generation unit that extracts the danger number from the stored call history list based on a predetermined criterion and includes the danger number in the danger number list and stores the danger number list in the danger number list storage part; In addition.
[5] In the communication control device according to any one of [1] to [4], the incoming communication control unit sends the incoming call signal to the incoming call terminal before the incoming call terminal makes a call connection. Send to.
[6] In the communication control device according to any one of [1] to [4], the incoming communication control unit sends the incoming signal to the incoming terminal while the incoming terminal is in a call connection. Send.
[7] The communication control device according to any one of [1] to [6], wherein the caller side communication control unit sends the caller side signal to the caller terminal before the caller terminal establishes a call connection. Send to.
[8] In the communication control device according to any one of [1] to [6], the caller communication control unit sends the caller signal to the caller terminal while the caller terminal is connected to the caller. Send.

  [9] In order to solve the above problem, a communication control program according to an aspect of the present invention acquires a calling party number from a signal transmitted from an exchange that has received an incoming signal from a calling terminal. Caller number acquisition means, comparing the caller number acquired by the caller number acquisition means with a predetermined number to determine whether the caller number is a fraud alleged number that is a suspected fraud number A fraud suspicion number determination means, and when the fraud suspicion number determination means determines that the calling party number is the fraud suspicion number, a terminating communication control means for transmitting a predetermined terminating signal to the terminating terminal; When the fraud suspicion number determination means determines that the calling party number is the suspicious fraud number, it functions as a transmission side communication control means for transmitting a predetermined calling side signal to the calling side terminal. That.

  According to the present invention, fraudulent calls can be further reduced.

It is a conceptual diagram which shows the example of the whole structure of a communication system to which the communication control apparatus which is 1st Embodiment of this invention is applied, and the flow of a process. It is a block diagram which shows the example of a function structure of the communication control apparatus which is 1st Embodiment. It is a figure which shows the example of a data structure of the subscriber white list memorize | stored in a subscriber white list memory | storage part. It is a figure which shows the example of a data structure of the public number list memorize | stored in a public number list memory | storage part. It is a figure which shows the example of a data structure of the subscriber black list memorize | stored in a subscriber black list memory | storage part. It is a figure which shows the example of a data structure of the caution number list memorize | stored in the caution number list memory | storage part. It is a figure which shows the example of a data structure of the suspicion number list memorize | stored in a suspicion number list memory | storage part. It is a figure which shows the example of a data structure of the call history list memorize | stored in a call history list memory | storage part. It is a figure which shows the example of a data structure of the danger number list memorize | stored in a danger number list memory | storage part. It is an example of the flowchart which showed the procedure of the process of a fraud suspicion number determination part. It is a conceptual diagram which shows the example of the whole structure of a communication system to which the communication control apparatus which is 2nd Embodiment of this invention is applied, and the flow of a process. It is a conceptual diagram which shows the example of the whole structure of a communication system to which the communication control apparatus which is 3rd Embodiment of this invention is applied, and the flow of a process.

Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the drawings.
[First Embodiment]
FIG. 1 is a conceptual diagram showing an example of the overall configuration and processing flow of a communication system to which a communication control apparatus according to a first embodiment of the present invention is applied. FIG. 1 shows an example in which a calling terminal 10 possessed by a Service-to-Self who makes a fraudulent telephone call (malicious call) such as a transfer fraud makes a call to a receiving terminal 40 possessed by a fraudster (subscriber). is there. When the calling side terminal 10 makes a call, for example, signals are sequentially sent to the receiving side terminal 40 via signals from the calling side exchange 20 of the calling side network, the called side exchange 30 of the receiving side network, and the communication control device 50.

  The communication control device 50 is a service providing device that includes a fraud alleged number determination device 51 and a determination information storage device 52. For example, the communication control device 50 is installed in a telephone network. The fraud suspicious number determination device 51 obtains a calling party number (calling party telephone number) from a signal transmitted from the called party exchange 30. Then, the fraud suspicious number determination device 51 searches the determination information storage device 52 using the calling party number to determine whether or not the calling party number is a fraud suspicious number that is a suspicious fraud number. The determination information storage device 52 stores determination information. This determination information is registered by the information provider. A specific example of the determination information will be described later.

  When it is determined that the calling party number is a fraud suspicious number, the fraud allegation number determination device 51 transmits a receiving side signal indicating an alert before calling to the receiving side terminal 40 before the receiving side terminal 40 establishes a call connection. To do. Further, when the fraud suspicious number determination device 51 determines that the calling party number is a fraud suspicious number, before the calling terminal 10 makes a call connection, the calling terminal 10 indicates a calling signal indicating a warning before the call. Send.

  Further, when the fraud suspicious number determination device 51 determines that the calling party number is a suspicious fraud number, for example, the monitoring terminal 60 displays determination result information including information indicating the incoming time, the calling party number, and the called party number. Or transmitted to the facsimile machine 70. When the monitoring terminal 60 or the facsimile apparatus 70 receives the determination result information, the monitor who is the user of the monitoring terminal 60 or the facsimile apparatus 70 recognizes that the telephone on which the suspicion of fraud is suspected is being placed on the receiving terminal 40. Can do. Here, the monitor is, for example, a police, a local government, a silver human resource, an NGO, a residents' association, a guardian, a volunteer, a family, a bank, or a company. As a result, the supervisor can make a call to alert or rush to a subscriber who has received an alleged fraudulent number.

  In addition, the fraud suspicion number determination device 51 is connected to the receiving terminal 40 after the calling terminal 40 that has received the calling party number determined to be a fraud suspicious number is turned off hook and then on-hook. Sends the incoming signal indicating the alert. In addition, alerting is made to the receiving terminal 40 or the subscriber of the receiving terminal 40 by communication means (not shown) by the supervisor who has obtained the determination result information. In addition, when the speaker of the receiving terminal 40 recognizes that it was a fraudulent call or a suspicious fraud call based on the content of the immediately preceding call, the receiving terminal 40 reports a suspicious call including the calling party number corresponding to the immediately preceding call. It transmits to fraud alleged number determination device 51. Then, the fraud suspicious number determination device 51 that has received the suspicious telephone number report registers the calling party number included in the suspicious telephone report as a suspicious number in the determination information storage device 52.

  FIG. 2 is a block diagram illustrating an example of a functional configuration of the communication control device 50. In FIG. 2, the same components as those in FIG. As shown in FIG. 2, for example, the determination information storage device 52 includes a white list storage unit 53, a black list storage unit 54, a gray list storage unit 55, a call history list storage unit 56, and a danger number list storage unit. 57.

The white list storage unit 53 stores a white list that is a list of numbers that the receiving terminal 40 permits call connection. For example, the white list storage unit 53 includes a subscriber white list storage unit 531 and a public number list storage unit 532.
The subscriber white list storage unit 531 stores a subscriber white list which is a list of allowable connection calling number for each subscriber. For example, the subscriber white list record is registered in the subscriber white list storage unit 531 when the subscriber uses a specific telephone service or by an operator's operation.
The public number list storage unit 532 stores a public number list which is a list of connection allowable calling number common to all subscribers. For example, the public number list record is registered in the public number list storage unit 532 when a third party authorized in advance uses a specific telephone service or by an operator's operation.

  The black list storage unit 54 stores a black list that is a list of numbers that the receiving terminal 40 does not permit (inhibit) call connection. For example, the black list storage unit 54 includes a subscriber black list storage unit 541. The subscriber black list storage unit 541 stores a subscriber black list which is a list of connection prohibition calling number for each subscriber. For example, the subscriber blacklist record is registered in the subscriber blacklist storage unit 541 when the subscriber uses a specific telephone service or by an operator's operation.

The gray list storage unit 55 stores a gray list that is a list of numbers that require attention in call connection. For example, the gray list storage unit 55 includes a caution number list storage unit 551 and a suspicious number list storage unit 552.
The caution number list storage unit 551 stores a caution number list that is common to all subscribers and is a list of numbers that require attention for call connection. For example, the caution number list record is registered in the caution number list storage unit 551 when a previously authorized monitor uses a specific telephone service or by an operator's operation.
The suspicious number list storage unit 552 stores a suspicious number list that is a list of numbers that require attention for call connection for each subscriber. For example, the record of the suspected number list is registered in the suspected number list storage unit 552 by using a specific telephone service when the subscriber receives a suspicious call or by an operator's operation.

The call history list storage unit 56 stores a call history list that is a list of call histories for each subscriber.
The danger number list storage unit 57 stores a danger number list that is a list of danger numbers common to all subscribers.

  For example, the white list storage unit 53, the black list storage unit 54, the gray list storage unit 55, the call history list storage unit 56, and the danger number list storage unit 57 are realized by a magnetic hard disk device, a semiconductor storage device, or the like.

  Further, as shown in FIG. 2, the fraud suspicious number determination device 51 includes a calling side number acquisition unit 511, a fraud suspicious number determination unit 512, a receiving side communication control unit 513, a calling side communication control unit 514, and a danger. A number list generation unit 515.

  The calling party number acquisition unit 511 acquires the calling party number from the signal transmitted from the called party exchange 30 that has received the incoming signal from the calling terminal 10.

  The fraud suspicion number determination unit 512 compares the transmission side number acquired by the transmission side number acquisition unit 511 with the determination information (predetermined number) stored in the determination information storage device 52, so that the transmission side number is a suspicion of fraud. It is determined whether it is a number. Specifically, for example, the fraud suspicion number determination unit 512 includes the white list stored in the white list storage unit 53, the black list stored in the black list storage unit 54, or the risk stored in the danger number list storage unit 57. Based on the comparison between the numbers in the number list and the calling party number, it is determined whether or not the calling party number is a fraud alleged number. The fraud suspicion number determination process by the fraud suspicion number determination unit 512 will be described later.

The incoming side communication control unit 513 transmits a predetermined incoming side signal to the incoming side terminal 40 when the fraud suspicious number determination unit 512 determines that the outgoing side number is a suspicious fraud number.
The transmission side communication control unit 514 transmits a predetermined transmission side signal to the transmission side terminal 10 when the fraud suspicion number determination unit 512 determines that the transmission side number is a fraud suspicion number. The fraud allegation response processing by the incoming communication control unit 513 and the outgoing communication control unit 514 will be described later.

  The danger number list generation unit 515 extracts a danger number from the black list stored in the black list storage part 54 and the white list stored in the white list storage part 53 based on a predetermined criterion, and the danger number is assigned to the danger number. It is included in the list and stored in the danger number list storage unit 57.

  The dangerous number list generation unit 515 extracts a dangerous number from the call history list stored in the call history list storage unit 56 based on a predetermined criterion, and includes the dangerous number in the dangerous number list and stores the dangerous number list. You may memorize | store in the part 57. FIG. Further, the danger number list generation unit 515 extracts a danger number from the gray list stored in the gray list storage unit 55 based on a predetermined standard, includes the danger number in the danger number list, and the danger number list storage unit 57. May be stored. The danger number list generation process by the danger number list generation unit 515 will be described later.

Next, an example of the data configuration of data stored in various storage units of the determination information storage device 52 will be described.
FIG. 3 is a diagram illustrating an example of a data configuration of the subscriber white list stored in the subscriber white list storage unit 531. As shown in FIG. 3, for example, the subscriber white list includes a subscriber number (telephone number) and a connection allowable calling number that the subscriber allows call connection in association with each other.

  FIG. 4 is a diagram illustrating an example of the data configuration of the public number list stored in the public number list storage unit 532. As shown in FIG. 4, for example, the public number list includes items of a public number, a registration date, a registrant, a registration name, and a registration reason. The public number is a number mainly used by the public, for example, a telephone number of a city hall or a school. The registration date and time is information representing the date and time when the number is registered in the public number list storage unit 532. The registrant is information representing the name or name of the person who registered the number. The registered name is a name corresponding to the number (for example, XX city hall). The reason for registration is information indicating the reason for registering the number in the public number list.

  For example, the public number list is information that is open to the general public or a specific person. By including the registrant and the reason for registration in the public number list, for example, malicious registration can be suppressed or misregistration can be prevented. In addition, a review of records whose registration date is too old is also performed.

  FIG. 5 is a diagram showing an example of the data structure of the subscriber black list stored in the subscriber black list storage unit 541. As shown in FIG. 5, for example, the subscriber blacklist includes a subscriber number, a connection prohibition number that the subscriber prohibits call connection, and a disconnection method in association with each other. The disconnection method includes disconnection or transfer distinction, and the type of talk (voice guidance) when disconnecting.

  FIG. 6 is a diagram illustrating an example of the data configuration of the caution number list stored in the caution number list storage unit 551. As shown in FIG. 6, for example, the caution number list includes items of a number requiring attention for call connection, a registration date, a registrant, and a registration reason. In other words, the number requiring attention for call connection is a candidate number stored in the black list. The registration date and time is information representing the date and time when the number is registered in the caution number list storage unit 551. The registrant is information representing the name or name of the person who registered the number. The reason for registration is information indicating the reason why the number is registered in the watch number list.

  For example, the caution number list is information that is disclosed to the monitor. By including the registrant and the reason for registration in the list of caution numbers, for example, malicious registration can be suppressed or erroneous registration can be prevented. In addition, a review of records whose registration date is too old is also performed.

  FIG. 7 is a diagram illustrating an example of the data structure of the alleged number list stored in the alleged number list storage unit 552. As shown in FIG. 7, for example, the alleged number list includes items in the case where the subscriber has an image of suspicion of fraud, the date and time of registration, the registrant, and the reason for registration. . The number is a number when the subscriber has received a proof that the calling number in the previous call is alleged fraud. In other words, this number is a candidate number stored in the black list. The registration date and time is information representing the date and time when the number is registered in the alleged number list storage unit 552. The registrant is information representing the name or name of the person who registered the number. The reason for registration is information indicating the reason for registering the number in the alleged number list.

  For example, the alleged number list is information disclosed to the monitor. By including the registrant and the reason for registration in the suspicion number list, for example, malicious registration can be suppressed or misregistration can be prevented. In addition, a review of records whose registration date is too old is also performed.

  FIG. 8 is a diagram illustrating an example of a data configuration of a call history list stored in the call history list storage unit 56. As shown in FIG. 8, for example, the call history list includes items of date and time, calling number, called number, and connection result in association with each other. The date and time is the date and time when a call is made. Specifically, for example, the date / time includes a call start date / time and a call end date / time. The calling number is the number on the caller side of the call connection. The called number is the number on the receiving side of the call connection. The connection result includes information indicating the result of the connection, such as whether or not the call connection has been made and whether the call has been transferred.

  FIG. 9 is a diagram illustrating an example of the data configuration of the danger number list stored in the danger number list storage unit 57. As shown in FIG. 9, for example, the danger number list includes items of a danger number and a risk index in association with each other. The risk index is an index value representing the reliability of the risk number. For example, the risk index is a larger value as the reliability is higher.

Next, the operation of the communication control device 50 will be described.
<Scam suspected fraud number determination>
FIG. 10 is an example of a flowchart illustrating a processing procedure of the fraud suspicious number determination unit 512. When the transmission side number acquisition unit 511 acquires the transmission side number, the fraud suspicious number determination unit 512 executes the processing of this flowchart.
In step S <b> 1, the fraud alleged number determination unit 512 searches for the calling party number from the subscriber white list stored in the subscriber white list storage unit 531. When the calling party number is searched from the subscriber white list (step S1: YES), the process proceeds to step S2, and when the calling party number is not searched from the subscriber white list (step S1: NO). Shifts to the process of step S3.

  In step S <b> 2, the incoming side communication control unit 513 controls call connection for the incoming side terminal 40.

  On the other hand, in step S <b> 3, fraud alleged number determination unit 512 searches for a calling party number from the subscriber black list stored in subscriber black list storage unit 541. When the calling party number is searched from the subscriber black list (step S3: YES), the process proceeds to step S4. When the calling party number is not searched from the subscriber black list (step S3: NO) Shifts to the process of step S5.

  In step S4, the incoming side communication control unit 513 and the outgoing side communication control unit 514 perform fraud alleged response processing. Details of the fraud alleged response processing will be described later.

  In step S <b> 5, the fraud alleged number determination unit 512 searches for the calling party number from the public number list stored in the public number list storage unit 532. If the calling party number is searched from the public number list (step S5: YES), the process proceeds to step S2. If the calling party number is not searched from the public number list (step S5: NO), the process proceeds to step S2. The process proceeds to S6.

  In step S <b> 6, the fraud alleged number determination unit 512 searches the risk number list stored in the risk number list storage unit 57 for a risk number whose risk index is equal to or greater than a predetermined specified value. If a danger number is retrieved from the danger number list (step S6: YES), the process proceeds to step S4. If no danger number is retrieved from the danger number list (step S6: NO), the process proceeds to step S2. Transition to processing.

<Scam for fraud allegation>
The incoming side communication control unit 513 and the outgoing side communication control unit 514 execute fraud alleged response processing according to the determination result of the fraud alleged number determining unit 512.

For example, the incoming side communication control unit 513 transmits the incoming side signal to the incoming side terminal 40 before the incoming side terminal 40 makes a call connection. In this case, the incoming signal is, for example, a pre-call talk signal. Specifically, for example, the pre-call talk in the incoming signal has the following contents.
“This phone is not from your family.”
“Be careful with this call.”
“This is a call from XX (registered name).”

  The incoming communication control unit 513 may transmit the incoming signal to the incoming terminal 40 while the incoming terminal 40 is connected to the call. In this case, the incoming signal is, for example, a voice interrupt signal during a call, specifically, an interrupt talk or warning sound. Further, the incoming signal may be a signal for transferring to another terminal during a call.

  In addition, the incoming side communication control unit 513 may output a post-call talk signal as the incoming side signal after the incoming side terminal 40 completes the call (after going on-hook). In this case, the post-call talk is, for example, “The previous call may be a fraudulent call”.

  Further, the transmission side communication control unit 514 transmits a transmission side signal to the transmission side terminal 10 before the transmission side terminal 10 makes a call connection. In this case, the outgoing signal is, for example, a pre-call talk signal. Specifically, for example, the pre-call talk for the caller side signal is “This call has been recorded”. For example, the calling side signal may be a signal that continues until the calling side disconnects the pre-call talk. Further, the calling side signal may be a signal for disconnecting the call after repeating the talk for a specified number of times or a specified time. Further, the caller signal may be a signal for call connection after pre-call talk. Further, the caller side signal may be a signal for preventing a call from being connected.

  Note that the caller side communication control unit 514 may transmit the incoming call side signal to the caller side terminal 10 while the caller side terminal 10 is connected to the call. In this case, the caller side signal is, for example, a voice interruption signal during a call, and specifically, an interruption talk or warning sound. Further, the originating side signal may be a signal for disconnecting the call.

<Danger number list generation processing>
The danger number list generation unit 515 extracts a number registered in the subscriber blacklist of the subscriber blacklist storage unit 541 at a predetermined number or more in a predetermined period as a danger number (A method).

  Alternatively, the danger number list generation unit 515 extracts a calling number that appears in the call history list of the call history list storage unit 56 at a frequency equal to or higher than a predetermined number as a danger number (B method).

  Note that the danger number list generation unit 515 may use an overlapping number among the number extracted by the A method and the number extracted by the B method as the danger number.

  Further, the danger number list generation unit 515 is a number registered in the gray list of the gray list storage unit 55 and registered in the white list of the white list storage unit 53 for a predetermined period or after a predetermined date and time. No. is extracted as a danger number (C method). As a result, the danger number list generation unit 515 extracts or eliminates a noise number by removing or reducing noise such as erroneous registration, erroneous declaration, and use by another user after canceling the gray list requiring attention number or suspected number. be able to.

  The danger number list generation unit 515 may extract the danger numbers from the black list, the white list, and the gray list by, for example, a known data mining method without being limited to the A method to the C method.

  The risk number list generation unit 515 stores the risk number list storage unit 57 in association with the risk number, with a risk index that increases as the reliability of the risk number increases. The danger number list generation unit 515 updates the danger number list stored in the danger number list storage unit 57 periodically or whenever a danger number is extracted. In addition, the risk number list is corrected by monitoring a predetermined third party (for example, a third party such as the police or local government), and the risk number or the risk index is appropriately adjusted.

As described above in detail, the communication control device 50 according to the first embodiment obtains the calling party number from the signal transmitted from the called exchange 30 that has received the incoming signal from the calling terminal 10. A number acquisition unit 511 is provided. Moreover, the communication control apparatus 50 is provided with the fraud suspicion number determination part 512 which determines whether the transmission side number which the transmission side number acquisition part 511 acquired is a fraud suspicion number which is a fraud suspicion number. In addition, the communication control device 50 transmits a predetermined incoming signal to the incoming terminal 40 when the fraud suspicious number determination unit 512 determines that the outgoing number is a fraud suspicious number. Is provided. In addition, the communication control unit 50 transmits a predetermined transmission side signal to the transmission side terminal 10 when the fraud suspicion number determination unit 512 determines that the transmission side number is a fraud suspicion number. Is provided.
Therefore, the communication control device 50 transmits not only a predetermined incoming signal to the incoming terminal 40 but also a predetermined outgoing signal to the outgoing terminal 10. With this configuration, it is possible not only to alert the receiving terminal 40 but also to warn the calling terminal 10 and to further enhance the effect of suppressing malicious calls such as fraudulent calls.

  Further, according to the first embodiment, by incorporating the communication control device 50 in the telephone network, a fraudulent call prevention service can be realized without providing a special mechanism in the receiving terminal 40.

[Second Embodiment]
In the first embodiment, the fraud suspicious number determination device 51 is an example of acquiring the calling party number from the signal transmitted from the called party exchange 30. The second embodiment is an example in which when the receiving side exchange receives a call from the calling side terminal, it transmits an e-mail indicating that it has arrived to the fraud suspicious number determination device. In the present embodiment, the communication control device is a device outside the telephone network provided outside the telephone network.

  FIG. 11 is a conceptual diagram showing an example of the overall configuration and processing flow of a communication system to which the communication control apparatus according to the second embodiment of the present invention is applied. About the same structure as 1st Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted. When the caller terminal 10 makes a call, for example, the call is received by the callee terminal 40 via signals sequentially through the caller exchange 20 of the caller network and the callee exchange 30a of the callee network.

  On the other hand, when receiving a call from the originating terminal 10, the terminating exchange 30a generates an e-mail (incoming notification mail) including information on the date and time when the call arrives, the originating number, and the terminating number. The electronic mail is transmitted to the fraud suspicious number determination device 51a. This electronic mail may be in any format, for example, an SMS mail by a short message service.

  The fraud suspicion number determination device 51a of the communication control device 50a differs from the fraud suspicion number determination device 51 of the first embodiment in the operation of the caller side number acquisition unit 511. Therefore, only the calling party number acquisition unit 511 will be described here. The calling party number acquisition unit 511 of the fraud alleged number determination device 51a receives the incoming notification e-mail transmitted by the receiving switch 30a, and acquires the calling party number from this incoming notification mail.

  According to the second embodiment, a fraudulent telephone call prevention service can be realized using the SMS service of the telephone network.

[Third Embodiment]
3rd Embodiment is an example which acquires the information of alerting from this fraud suspicion number determination apparatus, when the incoming | returning incoming call terminal inquires of a fraud suspicion number determination apparatus.

  FIG. 12 is a conceptual diagram showing an example of the overall configuration and processing flow of a communication system to which the communication control apparatus according to the third embodiment of the present invention is applied. About the same structure as 1st Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted. When the caller terminal 10 makes a call, the call is sent to the callee terminal 40a through signals sequentially transmitted from the caller exchange 20 of the caller network, the callee exchange 30 of the callee network, and the communication control device 50.

  Upon receiving (incoming) the incoming signal from the incoming side exchange 30, the incoming side terminal 40a transmits inquiry request information including the incoming side number to the fraud suspicious number determination device 51b of the communication control device 50b. Then, in the fraud suspicious number determination device 51b that has received the inquiry request information, when the fraud suspicion number determination unit 512 determines that the calling party number is a fraud suspicious number, the receiving communication control unit 513 performs a predetermined incoming call. The side signal is transmitted to the receiving terminal 40a.

The incoming terminal 40a may be a wireless telephone terminal such as a mobile phone or a smartphone. In this case, the function on the receiving side terminal side of the third embodiment may be realized by the receiving side terminal 40a executing the application program.
Further, the fraud suspicious number determination device 51b may be in the called side network or on the receiving side terminal 40a side.

  In each embodiment mentioned above, fraud suspicion number determination part 512 determined the fraud suspicion number using the transmission side number which the transmission side number acquisition part 511 acquired. In addition to this, the calling party number acquisition unit 511 also acquires terminal type information indicating the terminal type from the signal transmitted from the called party exchange 30 and uses the combination of the terminal type information and the calling party number to suspicious fraud number. May be determined. Specifically, for example, the fraud suspicion number determination unit 512 may execute a fraud suspicion number determination process using the calling party number when the terminal type information is information indicating an international call.

  Moreover, you may make it implement | achieve a part of function of the communication control apparatus 50, 50a, 50b which is embodiment mentioned above with a computer. In this case, a communication control program for realizing the function is recorded on a computer-readable recording medium, the communication control program recorded on the recording medium is read into the computer system, and the computer system executes the program. The function may be realized. The computer system includes an operating system (OS) and hardware of peripheral devices. The computer-readable recording medium is a portable recording medium such as a flexible disk, a magneto-optical disk, an optical disk, or a memory card, and a storage device such as a magnetic hard disk or a solid state drive provided in the computer system. Furthermore, a computer-readable recording medium dynamically holds a program for a short time, such as a computer network such as the Internet, and a communication line when transmitting a program via a telephone line or a cellular phone network. In addition, a server that holds a program for a certain period of time, such as a volatile memory inside a computer system serving as a server device or a client in that case, may be included. Further, the communication control program may be for realizing a part of the above-described functions, and further for realizing the above-described functions by a combination with a program already recorded in the computer system. May be.

  As described above in detail, according to each embodiment, the subscriber can be protected from malicious calls such as fraudulent calls from Service-to-Self without performing any special operation from the receiving-side terminals 40 and 40a. In addition, according to each embodiment, it is possible to prevent or reduce the malicious telephone calls coming to the receiving side terminals 40 and 40a.

  As mentioned above, although embodiment of this invention was explained in full detail with reference to drawings, the specific structure is not restricted to that embodiment, The design of the range which does not deviate from the summary of this invention, etc. are included.

  DESCRIPTION OF SYMBOLS 10 ... Outgoing side terminal, 20 ... Outgoing side exchange, 30 ... Incoming side exchange, 30a ... Incoming side exchange, 40 ... Incoming side terminal, 40a ... Incoming side terminal, 50 ... Communication control device, 50a ... Communication control device, 50b ... Communication control device 51 ... Fraud alleged number determination device 51a ... Fraud alleged number determination device 51b ... Fraud alleged number determination device 52 ... Determination information storage device 53 ... White list storage unit 54 ... Black list storage unit 55 ... Gray list storage unit, 56 ... Call history list storage unit, 57 ... Danger number list storage unit, 60 ... Monitoring terminal, 70 ... Facsimile device, 511 ... Originator number acquisition unit, 512 ... Fraud alleged number determination unit, 513 ... Incoming communication control unit, 514 ... Outgoing communication control unit, 515 ... Danger number list generation unit, 531 ... Subscriber white list storage unit, 532 ... Public number list憶部, 541 ... subscriber blacklist storage unit, 551 ... watch out number list storage unit, 552 ... alleged number list storage unit

Claims (9)

From the signal transmitted from the exchange that received the incoming signal from the calling terminal, a calling number acquisition unit that acquires the calling number,
A fraud alleged number determination unit that determines whether the calling party number acquired by the calling number acquisition unit is a fraud alleged number that is a fraud alleged number;
When the caller number is determined by the fraud suspicion number determination unit to be the fraud suspicion number, a callee communication control unit that transmits a predetermined callee signal to the callee terminal;
When it is determined by the fraud alleged number determination unit that the calling party number is the fraud alleged number, a calling side communication control unit that transmits a predetermined calling side signal to the calling side terminal;
A whitelist storage unit that stores a whitelist that is a list of numbers that the callee terminal permits call connection;
A blacklist storage unit that stores a blacklist that is a list of numbers for which the receiving terminal prohibits call connection;
A danger number list storage unit for storing a danger number list which is a list of predetermined danger numbers;
The danger number is extracted based on a predetermined standard from the black list stored in the black list storage section and the white list stored in the white list storage section, and the danger number is included in the danger number list. A danger number list generation unit to be stored in the danger number list storage unit,
With
The fraud suspicion number determination unit may include the white list stored in the white list storage unit, the black list stored in the black list storage unit, or the danger number list stored in the danger number list storage unit. Determining whether the calling party number is the alleged fraud number based on a comparison between the number and the calling party number;
Communication control device. From the signal transmitted from the exchange that received the incoming signal from the calling terminal, a calling number acquisition unit that acquires the calling number,
A fraud alleged number determination unit that determines whether the calling party number acquired by the calling number acquisition unit is a fraud alleged number that is a fraud alleged number;
When the caller number is determined by the fraud suspicion number determination unit to be the fraud suspicion number, a callee communication control unit that transmits a predetermined callee signal to the callee terminal;
When it is determined by the fraud alleged number determination unit that the calling party number is the fraud alleged number, a calling side communication control unit that transmits a predetermined calling side signal to the calling side terminal;
A whitelist storage unit that stores a whitelist that is a list of numbers that the callee terminal permits call connection;
A blacklist storage unit that stores a blacklist that is a list of numbers for which the receiving terminal prohibits call connection;
A danger number list storage unit for storing a danger number list which is a list of predetermined danger numbers;
A call history list storage unit that stores a call history list that represents a call history of each called terminal for a plurality of called terminals,
From the call history list stored in the call history list storage unit, a calling party number that appears at a frequency of a predetermined number or more in a predetermined period is extracted as the danger number, the danger number is included in the danger number list, and the danger number is included. A danger number list generation unit to be stored in the number list storage unit;
With
The fraud suspicion number determination unit may include the white list stored in the white list storage unit, the black list stored in the black list storage unit, or the danger number list stored in the danger number list storage unit. Determining whether the calling party number is the alleged fraud number based on a comparison between the number and the calling party number;
Communication control device. The terminating communication control unit transmits the terminating signal to the terminating terminal before the terminating terminal establishes a call connection;
The communication control apparatus according to claim 1 or 2 . The terminating communication control unit transmits the terminating signal to the terminating terminal during the call connection of the terminating terminal,
The communication control apparatus according to claim 1 or 2 . The incoming communication control unit, when the fraud suspicion number determination unit determines that the calling party number is the fraud suspicion number, transmits an incoming signal indicating alerting to the incoming terminal after a call,
The communication control apparatus according to any one of claims 1 to 4. The calling side communication control unit transmits the calling side signal to the calling side terminal before the calling side terminal makes a call connection.
The communication control apparatus according to any one of claims 1 to 4 . The calling side communication control unit transmits the calling side signal to the calling side terminal while the calling side terminal is in a call connection.
The communication control apparatus according to any one of claims 1 to 4 . Computer
A calling party number acquisition means for acquiring a calling party number from a signal transmitted from an exchange that has received an incoming signal from a calling terminal;
A fraud alleged number determination unit that compares the calling party number acquired by the calling party number acquisition unit with a predetermined number and determines whether the calling party number is a fraud alleged number that is a suspected fraud number ,
A receiving side communication control means for transmitting a predetermined receiving side signal to the receiving side terminal when the calling side number is determined to be the fraud suspicious number by the fraud suspicious number judging means;
When the caller number is determined by the fraud suspicion number determination means to be the fraud suspicion number, a caller communication control means for transmitting a predetermined caller signal to the caller terminal ;
A whitelist storage means for storing a whitelist which is a list of numbers that the callee terminal accepts call connection;
Black list storage means for storing a black list which is a list of numbers for which the receiving terminal prohibits call connection;
Danger number list storage means for storing a danger number list which is a list of predetermined danger numbers;
The danger number is extracted based on a predetermined standard from the black list stored in the black list storage means and the white list stored in the white list storage means, and the danger number is included in the danger number list. Danger number list generating means to be stored in the danger number list storage means,
Have
The fraud suspicion number determining means is the white list stored in the white list storage means, the black list stored in the black list storage means, or the danger number list stored in the danger number list storage means. Means for determining whether the calling number is the alleged fraud number based on a comparison of the number with the calling number;
Communication control program to function as Computer
A calling party number acquisition means for acquiring a calling party number from a signal transmitted from an exchange that has received an incoming signal from a calling terminal;
A fraud alleged number determination unit that compares the calling party number acquired by the calling party number acquisition unit with a predetermined number and determines whether the calling party number is a fraud alleged number that is a suspected fraud number ,
A receiving side communication control means for transmitting a predetermined receiving side signal to the receiving side terminal when the calling side number is determined to be the fraud suspicious number by the fraud suspicious number judging means;
When the caller number is determined by the fraud suspicion number determination means to be the fraud suspicion number, a caller communication control means for transmitting a predetermined caller signal to the caller terminal ;
A whitelist storage means for storing a whitelist which is a list of numbers that the callee terminal accepts call connection;
Black list storage means for storing a black list which is a list of numbers for which the receiving terminal prohibits call connection;
Danger number list storage means for storing a danger number list which is a list of predetermined danger numbers;
A call history list storage means for storing a call history list representing a call history of each receiving side terminal for a plurality of receiving side terminals;
From the call history list stored in the call history list storage means, a calling party number that appears at a frequency of a predetermined number or more in a predetermined period is extracted as the danger number, and the danger number is included in the danger number list and the danger number is included. Danger number list generating means to be stored in the number list storage means;
Have
The fraud suspicion number determining means is the white list stored in the white list storage means, the black list stored in the black list storage means, or the danger number list stored in the danger number list storage means. Means for determining whether the calling number is the alleged fraud number based on a comparison of the number with the calling number;
Communication control program to function as

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