JP5215070B2 - Communication system and communication method - Google Patents

Description

  The present invention relates to a communication system and a communication method, and more particularly to a communication system and a communication method for performing communication by converting a telephone number assigned to a terminal into a different telephone number.

Conventionally, a caller telephone number is converted based on information stored in the called number conversion database based on a destination telephone number of a call made from a communication terminal or the like, or a telephone call made from a communication terminal or the like is converted. There has been proposed a telephone number conversion method for converting a destination telephone number based on information stored in a calling number conversion database based on a caller telephone number (see, for example, Patent Document 1). According to this telephone number conversion method, it is possible to change the telephone number of the caller and the telephone number of the callee according to the usage application of the user of the telephone device. For example, when making a call from a specific telephone number It is possible to make settings such as forwarding to a specific telephone number.
JP 2007-150711 A

  By the way, in the conventional telephone number conversion method as described above, although the source telephone number or the destination telephone number can be converted by the called number conversion database or the calling number conversion database, the destination telephone number leaks to a third party. If this happens, there is a problem that incoming calls from the third party cannot be restricted.

  In particular, when the communication terminal is configured with a wireless communication terminal, if the communication terminal is lost, all telephone numbers registered in the phone book in the device are leaked to a third party, A situation may occur in which all telephone numbers are exposed to conditions allowing incoming calls from third parties.

  The present invention has been made in view of such problems, and an object thereof is to provide a communication system and a communication method that can effectively limit incoming calls from a third party.

The communication system of the present invention includes a terminal to which a telephone number is assigned, a communication management device for registering the telephone number of the terminal, an alternative telephone number different from the telephone number, and an identification number for identifying each terminal in association with each other The communication management device receives a call signal including a telephone number of an unregistered destination terminal and a registered telephone number of the source terminal from the source terminal. A new registration of the telephone number of the destination terminal, and a new registration of a terminal identification number corresponding to the destination terminal, which is a terminal identification number obtained by adding the identification number to the alternative telephone number, The telephone number of the terminal is converted into the terminal identification number corresponding to the caller terminal, and a call signal including the converted number information is transmitted to the callee terminal.

  According to this configuration, when a call signal including the telephone number of the call origination terminal and the terminal identification number of the call destination terminal is received from the call origination terminal, in the communication management device, the terminal identification corresponding to the telephone number of the call origination terminal Because it is converted into a number and the terminal identification number of the destination terminal is converted into the corresponding telephone number, communication can be performed without specifying the other party's terminal telephone number at both the source terminal and the destination terminal. Therefore, it is possible to prevent the leakage of these telephone numbers and effectively limit incoming calls from a third party.

Even if the phone number of the destination terminal is not registered, if the call originates from the source terminal registered in the communication management device, the phone number of the destination terminal and the terminal identification number must be newly registered. From this point onward, it is possible to perform communication using the terminal identification number. Since the telephone number of the calling terminal included in the calling signal is converted into the terminal identification signal of the calling terminal in the communication management device, the calling terminal is notified of the calling terminal's telephone number. Absent.

  In particular, when the communication management device newly registers the telephone number of the destination terminal, the communication management apparatus sets the telephone number of the destination terminal registered in the source terminal to the terminal identification number of the destination terminal. It is preferable to convert. In this case, since the telephone number of the destination terminal registered in the source terminal is converted into the corresponding terminal identification number, it is ensured that the telephone number of the destination terminal leaks from the source terminal. Can be prevented.

The communication system of the present invention, a terminal telephone number is assigned, the telephone number of the terminal is registered in association with the identification number that identifies the alternate telephone number and the terminal different from the telephone number communication A communication system comprising a management device, when receiving a call signal including a telephone number of the unregistered source terminal and a registered destination terminal telephone number from the source terminal, The communication management device newly registers a telephone number of the caller terminal, and newly registers a terminal specific number corresponding to the caller terminal, which is a terminal specific number obtained by adding the identification number to the alternative telephone number, The telephone number of the source terminal is converted into the terminal identification number corresponding to the source terminal, the terminal identification number of the destination terminal is converted into the telephone number of the destination terminal, and the converted number A calling signal containing information and transmits to the destination terminal. In this case, even if the telephone number of the caller terminal is not registered, if the call is made to the callee terminal registered in the communication management device, the caller terminal telephone number and the terminal identification number are newly set. Since registration is performed, communication can be performed using the terminal identification number thereafter. Since the telephone number of the calling terminal included in the calling signal is converted into the terminal identification signal of the calling terminal in the communication management device, the calling terminal is notified of the calling terminal's telephone number. Absent.

  In particular, when the communication management apparatus newly registers the telephone number of the caller terminal, the communication management apparatus sets the telephone number of the callee terminal registered in the caller terminal to the terminal identification number of the callee terminal. It is preferable to convert. In this case, since the telephone number of the destination terminal registered in the source terminal is converted into the corresponding terminal identification number, it is ensured that the telephone number of the destination terminal leaks from the source terminal. Can be prevented.

  Furthermore, in the communication system of the present invention, when a call signal including the telephone number of the unregistered caller terminal and the registered terminal identification number of the callee terminal is received from the caller terminal, It is preferable that the communication management device rejects transmission of the call signal to the destination terminal. In this case, even when the terminal identification number of the destination terminal registered in the communication management device is specified in the call signal, it is possible to reject the transmission from the unregistered source terminal. Thus, it is possible to reliably prevent transmission from a malicious third party who has obtained the terminal identification number of the destination terminal.

  In the communication system of the present invention, it is preferable to assign the same alternative telephone number to a plurality of the terminals. In this case, since the alternative telephone number can be shared by a plurality of terminals, a representative number of an arbitrary group (for example, one department in the company) can be used as the alternative telephone number.

The communication method of the present invention includes a terminal to which a telephone number is assigned, a communication management apparatus that registers and associates the telephone number of the terminal, an alternative telephone number different from the telephone number, and an identification number for identifying each terminal; The communication management apparatus receives a call signal including a telephone number of an unregistered destination terminal and a registered telephone number of the source terminal from the source terminal. And newly registering a telephone number of the destination terminal, and newly registering a terminal identification number corresponding to the destination terminal, which is a terminal identification number obtained by adding the identification number to the alternative telephone number; ingredients and Luz step to convert the terminal identification number corresponding to the telephone number of the originating terminal to the originating terminal, transmitting a call signal including the number information after converting into the destination terminal, the Characterized in that it.

  According to this communication method, when a call signal including a telephone number of a caller terminal and a terminal identification number of a callee terminal is received from the caller terminal, a terminal corresponding to the caller terminal's telephone number is received in the communication management device. Because it is converted to a specific number and the terminal specific number of the destination terminal is converted to the corresponding phone number, both the source terminal and the destination terminal can communicate without specifying the other party's terminal phone number. Therefore, it is possible to prevent a situation in which these telephone numbers are leaked, and to effectively limit incoming calls from a third party.

Even if the phone number of the destination terminal is not registered, if the call originates from the source terminal registered in the communication management device, the phone number of the destination terminal and the terminal identification number must be newly registered. From this point onward, it is possible to perform communication using the terminal identification number. Since the telephone number of the calling terminal included in the calling signal is converted into the terminal identification signal of the calling terminal in the communication management device, the calling terminal is notified of the calling terminal's telephone number. Absent.

  In particular, when the communication management device newly registers the telephone number of the destination terminal, the communication management apparatus sets the telephone number of the destination terminal registered in the source terminal to the terminal identification number of the destination terminal. It is preferable to convert. In this case, since the telephone number of the destination terminal registered in the source terminal is converted into the corresponding terminal identification number, it is ensured that the telephone number of the destination terminal leaks from the source terminal. Can be prevented.

The communication how the present invention includes a terminal telephone number is assigned, the telephone number of the terminal is registered in association with the identification number that identifies the alternate telephone number and the terminal different from the telephone number communication A communication method using a management device, wherein a call signal including a telephone number of an unregistered caller terminal and a registered phone number of a callee terminal is transmitted from the caller terminal to the communication management device. And registering the telephone number of the caller terminal as a new terminal and registering the terminal specific number corresponding to the caller terminal with the identification number added to the alternative telephone number Converting the telephone number of the source terminal into the terminal identification number corresponding to the source terminal, and converting the terminal identification number of the destination terminal into the telephone number of the destination terminal. A method, characterized by comprising a step of transmitting a call signal including the number information after converting into the destination terminal. In this case, even if the telephone number of the caller terminal is not registered, if the call is made to the callee terminal registered in the communication management device, the caller terminal telephone number and the terminal identification number are newly set. Since registration is performed, communication can be performed using the terminal identification number thereafter. Since the telephone number of the calling terminal included in the calling signal is converted into the terminal identification signal of the calling terminal in the communication management device, the calling terminal is notified of the calling terminal's telephone number. Absent.

  In particular, when the communication management apparatus newly registers the telephone number of the caller terminal, the communication management apparatus sets the telephone number of the callee terminal registered in the caller terminal to the terminal identification number of the callee terminal. It is preferable to convert. In this case, since the telephone number of the destination terminal registered in the source terminal is converted into the corresponding terminal identification number, it is ensured that the telephone number of the destination terminal leaks from the source terminal. Can be prevented.

  Furthermore, in the communication method of the present invention, when a call signal including a telephone number of the unregistered source terminal and a registered terminal identification number of the destination terminal is received from the source terminal, The communication management device preferably rejects transmission of the call signal to the destination terminal. In this case, even when the terminal identification number of the destination terminal registered in the communication management device is specified in the call signal, it is possible to reject the transmission from the unregistered source terminal. Thus, it is possible to reliably prevent transmission from a malicious third party who has obtained the terminal identification number of the destination terminal.

  According to the present invention, when a call signal including the telephone number of the caller terminal and the terminal identification number of the callee terminal is received from the caller terminal, in the communication management device, the terminal identification corresponding to the telephone number of the caller terminal is supported. Because it is converted into a number and the terminal identification number of the destination terminal is converted into the corresponding telephone number, communication can be performed without specifying the other party's terminal telephone number at both the source terminal and the destination terminal. Therefore, it is possible to prevent the leakage of these telephone numbers and effectively limit incoming calls from a third party.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following, a communication system embodying the present invention will be described. However, the present invention is not limited to this, and can also be established as a communication method.

  FIG. 1 is a diagram showing a schematic configuration of a communication system 100 according to an embodiment of the present invention. As shown in FIG. 1, in a communication system 100, a mobile phone 1 as a mobile terminal is connected to a mobile communication center 3 that manages communication of the mobile phone 1 via a mobile communication network 2. The mobile communication center 3 has an exchange function between the mobile communication network 2 and the fixed communication network 4. The fixed telephone 5 connected to the fixed communication network 4 can communicate with the mobile phone 1 via the fixed communication network 4 and the mobile communication network 2 by the exchange function of the mobile communication center 3. In the communication system 100 shown in FIG. 1, for convenience of explanation, two mobile phones 1 (1A, 1B) are connected to the mobile communication network 2, and one fixed phone 5 is connected to the fixed communication network 4. Although the case is shown, it is not limited to this.

  The mobile phones 1A and 1B have functions such as a telephone call function and a mail communication function that a normal mobile phone has. In addition, the mobile phones 1A and 1B have an SMS (Short Message Service) communication function so that a number conversion application, which will be described later, can be activated when a predetermined SMS arriving from the mobile communication center 3 is received. It is configured.

  The mobile communication network 2 constitutes a network between the mobile phone 1 and the mobile communication center 3. The mobile communication network 2 includes a mobile packet communication network in addition to a normal mobile communication network. On the other hand, the fixed communication network 4 constitutes a network between the fixed telephone 5 and the mobile communication center 3. The fixed communication network 4 includes a network such as the Internet in addition to a normal fixed communication network.

  The mobile communication center 3 functions as a communication management device that forms the core of the communication service provided by the communication system 100. The mobile communication center 3 manages a telephone number assigned to the mobile phone 1 or the fixed telephone 5 and a terminal identification number (group number and identification number) used as a calling number or called number instead of the telephone number at the time of communication. And manages communication between terminals receiving this communication service. The terminal identification number will be described later.

  The fixed telephone 5 has all the functions of a normal fixed telephone. In the communication system 100 according to the present embodiment, the case where the fixed telephone 5 connected to the fixed communication network 4 does not have the SMS communication function will be described. However, similarly to the mobile phone 1 described above, the fixed telephone 5 may be configured to have an SMS communication function so that a number conversion application described later can be activated when a predetermined SMS is received. When the number conversion application can be activated as described above, it is possible to cope with the terminal specific number reflection process from the mobile communication center 3 as described later.

  In the communication system 100 according to the present embodiment, the mobile communication center 3 manages the telephone number and terminal identification number (group number and identification number) of the terminal that receives this communication service, and the terminal identification number between the terminals. Is used for communication. Specifically, the mobile communication center 3 needs the telephone number of the other party by appropriately converting the terminal identification number and the telephone number designated as the calling number and called number from the source terminal and the destination terminal. By using the terminal identification number without doing so, communication between the caller terminal and the callee terminal is enabled. Hereinafter, configurations of mobile phone 1 and mobile communication center 3 in communication system 100 according to the present embodiment will be described.

  First, the configuration of the mobile phone 1 according to the present embodiment will be described. FIG. 2 is a block diagram showing a configuration of the mobile phone 1 according to the present embodiment. Note that the configuration of the mobile phone 1 shown in FIG. 2 is simplified to explain the functions related to the present invention.

  As shown in FIG. 2, the mobile phone 1 includes a control unit 11 that controls the entire apparatus, a communication control unit 12 that performs communication with the mobile communication center 3 via the mobile communication network 2, and the mobile phone 1. A display unit 13 for displaying various information according to an operation state, an operation unit 14 for receiving various operations from a user, an application control unit 15 for starting various applications installed in the apparatus or downloaded. Consists mainly of.

  The communication control unit 12 performs communication with the mobile communication center 3 via the mobile communication network 2 using a mobile communication interface. For example, when receiving an incoming call, the display unit 13 displays a call screen including the number information of the caller terminal. The application control unit 15 activates a number conversion application (hereinafter referred to as “number conversion application”) installed in the apparatus. As will be described in detail later, this number conversion application converts a telephone number recorded in a telephone directory and a transmission history memory (not shown) in which a transmission history is recorded in the mobile phone 1 into a terminal identification number. For example, the operation unit 14 receives an instruction for an operation button displayed on the above-described call screen.

  Next, the configuration of the mobile communication center 3 according to the present embodiment will be described. FIG. 3 is a block diagram showing a configuration of the mobile communication center 3 according to the present embodiment. The configuration of the mobile communication center 3 shown in FIG. 3 is simplified to explain the functions related to the present invention, and the exchange function between the mobile communication network 2 and the fixed communication network 4 as described above. The configuration related to the above is omitted.

  As shown in FIG. 3, the mobile communication center 3 is connected between the control unit 31 that controls the entire apparatus, the mobile phone 1 through the mobile communication network 2, and the fixed phone 5 through the fixed communication network 4. And a telephone book database (hereinafter referred to as “phone book DB”) 33 registered in association with the telephone number and terminal identification number (group number and identification number) of the terminal receiving this communication service. A number management unit 34 that manages the telephone number and the terminal identification number in the telephone directory DB 33, and an authentication processing unit 35 that authenticates a terminal that receives this communication service using the telephone number and the terminal identification number in the telephone directory DB 33; A guest number payout processing unit 36 for paying out a guest terminal identification number (hereinafter referred to as “guest number”) to a terminal whose number information is not registered in the telephone directory DB 33. It is mainly composed.

  The communication control unit 32 receives a call signal from the mobile phone 1 or the fixed phone 5 serving as a transmission source terminal, and transmits the call signal obtained by converting the number information included therein to the mobile phone 1 serving as a call destination terminal. Or to the fixed telephone 5. The telephone directory DB 33 is configured as a database that receives an inquiry about the telephone number or terminal identification number of the communication partner from the number management unit 34 or the like and responds with the terminal identification number or telephone number corresponding thereto. Further, the telephone directory DB 33 is configured to respond that the terminal identification number corresponding to the inquiry does not exist and that it is not registered.

  The number management unit 34 performs number conversion processing based on the telephone number and terminal identification number registered in the telephone directory DB 33. When the number management unit 34 receives a call signal including number information of a terminal that is not registered in the telephone directory DB 33, the number management unit 34 requests the guest number issue processing unit 36 to issue a guest number as necessary. Further, the number management unit 34 performs a terminal identification number reflection process for reflecting the terminal identification number to a terminal that has made a call using a telephone number.

  Upon receiving the call signal from the caller terminal, the authentication processing unit 35 performs an authentication process depending on whether or not the calling number and called number included therein are registered in the telephone book DB 33. Details of this authentication process will be described later. The guest number payout processing unit 36 pays out the guest number in response to the guest number payout request from the number management unit 34. In this case, the guest number payout processing unit 36 registers the guest number in the telephone directory DB 33 and notifies the number management unit 34. When the guest number is notified to the number management unit 34, the guest number payout processing unit 36 also notifies that the guest number of the terminal has been newly registered in the telephone directory DB 33 (terminal new registration notification).

  FIG. 4 is a diagram showing an example of phone book data registered in the phone book DB 33 of the mobile communication center 3 according to the present embodiment. As shown in FIG. 4, the telephone directory DB 33 includes a telephone number assigned to a terminal that receives this communication service, a group number as an alternative telephone number different from this telephone number, and an identification number for identifying each terminal. Are registered in association with each other. Further, in the telephone directory DB 33, an attribute indicating whether the terminal is a member who is legally receiving the provision of the communication service or a guest member temporarily receiving the provision is registered in each terminal. . In FIG. 4, a group number is shown as an example of the alternative telephone number, but the telephone number designated as the alternative telephone number is not limited to this.

  Note that, for example, a group number in the telephone directory DB is designated as a telephone number of an arbitrary group such as a representative number of a company or a representative number of a department in the company. For example, in this communication service, after “*” is input after the group number “090-1234-5678”, the identification number “1000” is input, thereby making a call to the terminal A shown in FIG. It becomes possible. In this communication service, a number obtained by adding an identification number to a group number is used as a terminal identification number.

  Next, communication processing performed between various terminals in the communication system 100 having the above configuration will be described. FIG. 5 is a diagram for describing types of terminals that perform communication processing in the communication system 100 according to the present embodiment. 6 to 11 are sequence diagrams or flowcharts for explaining communication processing performed between various terminals in the communication system 100. FIG. 5A to 5D show the source terminal and the destination terminal in the communication processing shown in FIGS. 6, 8, 10, and 11, respectively. In the sequence shown below, it is assumed that the phone book data shown in FIG. 4 is registered in the phone book DB 33 of the mobile communication center 3.

  First, a case where both the transmission source terminal and the transmission destination terminal are terminals registered as members in the communication service (hereinafter referred to as “member registration” as appropriate) will be described with reference to FIGS. To do. Here, it is assumed that the source terminal is terminal A (for example, mobile phone 1A) and the destination terminal is terminal B (for example, mobile phone 1B). For example, it is assumed that terminal A and terminal B are terminals used in the same company. As shown in FIG. 4, the group number of terminal A and terminal B is “090-1234-5678”. Further, the identification number and the telephone number of the terminal A are “1000” and “090-1000-1000”, respectively. On the other hand, the identification number and the telephone number of the terminal B are “1001” and “090-1000-1001”, respectively. It is assumed that numbers in which the identification number is added to the group number are registered in the phone books of the terminals A and B as the other party's telephone numbers.

  When the terminal A that is registered as a member communicates with the terminal B that is also registered as a member, as shown in FIG. 5A and FIG. Terminal A telephone number) is specified, while a call signal in which a number (terminal B specific number) in which the terminal B group number is added to the terminal B group number and the terminal B identification number (terminal B specific number) is moved It is output to the communication center 3 (step (hereinafter referred to as “ST”) 601).

  In the mobile communication center 3, this call signal is passed to the authentication processing unit 35, and the authentication processing unit 35 performs authentication processing using the registration information in the telephone directory DB 33 (ST602 to ST604). Specifically, the authentication processing unit 35 inquires of the phone book DB 33 whether or not the group number, the terminal B identification number, and the terminal A phone number included in the call signal are registered (ST602), and the terminal A from the phone book DB 33 Then, the terminal B is notified of the presence / absence of member registration (ST603), and the authentication result is determined according to the presence / absence of the member registration (ST604). Here, it is assumed that terminal A and terminal B are notified of membership registration, and an authentication result with authentication OK is obtained.

  Here, the authentication processing in the authentication processing unit 35 will be described with reference to FIG. FIG. 7 is a flowchart for explaining the authentication process executed by the authentication processing unit 35 of the mobile communication center 3 according to the present embodiment. As shown in FIG. 7, in the authentication process, it is first determined whether the called number included in the call signal has a group number (ST701). If the called number has a group number, it is determined whether an identification number exists (ST702). Furthermore, if an identification number exists in the called number, it is determined whether the called number is registered as a guest member (hereinafter referred to as “guest registration” as appropriate) (ST703).

  If the called number is not registered as a guest, it is determined whether the calling number is registered as a member (ST704). On the other hand, when the called number is registered as a guest, after counting up the count value in the guest counter managed by the authentication processing unit 35 (ST705), the process proceeds to ST704, and the member registration of the calling number is determined. Is done. This guest counter is for restricting communication when both the source terminal and the destination terminal are registered as a guest, and the authentication result is authenticated when the count value is “2”. It is configured to limit communication by using NG.

  If the calling number is registered as a member, it is determined whether the calling number is registered as a guest (ST706). If the calling number is registered as a guest, after counting up the count value in the guest counter (ST707), it is determined whether the count value is “2” (ST708). Here, when the count value is “0” or “1”, the authentication result is authenticated OK (ST709), whereas when it is “2”, the authentication result is authenticated. NG (ST710).

  If it is determined in ST702 that there is no identification number in the called number, or if it is determined in ST704 that the calling number is not registered as a member, the authentication result is set as authentication NG (ST710). On the other hand, if it is determined in ST706 that the calling number is registered as a guest, the authentication result is authentication OK (ST709).

  On the other hand, if it is determined in ST701 that there is no group number in the called number, member registration in the same group as the called number is determined (ST711). If the called number is registered as a member in the same group, it is determined whether the called number is registered as a guest (ST712). If the called number is not registered as a guest, the authentication result is authentication OK (ST709).

  If the called number is not registered as a member in the same group in ST711, or if the called number is registered as a guest in ST712, the member registration of the calling number is determined (ST713). Here, if the calling number is registered as a member, the authentication result is OK (ST709), whereas if the member is not registered, the authentication result is NG (ST710).

  In such an authentication process, in the example shown in FIG. 6, the called number of the call signal from terminal A includes the group number of terminal B and the terminal B identification number, and the called number is registered as a guest member. Therefore, the process proceeds to ST704 through ST701, ST702, and ST703. In addition, since the calling number is the terminal A telephone number and registered as a member and not registered as a guest member, the authentication result is authenticated as OK in ST709 through ST704 and ST706.

  As shown in ST604 of FIG. 6, when the authentication result with the authentication OK is obtained, the above-described calling signal is passed from the authentication processing unit 35 to the number management unit 34 (ST605). Upon receiving this call signal, the number management unit 34 notifies the phone book DB 33 of the group number, the terminal B identification number, and the terminal A phone number included therein (ST606), while the phone book DB 33 notifies the terminal B of the terminal B. A notification of the telephone number (terminal B telephone number), the group number of terminal A, and the identification number of terminal A (terminal A identification number) is received (ST607), and number information included in the calling signal is converted accordingly (ST607). ST608). In this case, the number management unit 34 converts the calling number into a number obtained by adding the terminal A identification number to the group number of the terminal A, while converting the called number into the terminal B telephone number.

  After the number information in the call signal is converted, the converted call signal is output from the number management unit 34 to the terminal B via the communication control unit 32 (ST609). When this call signal is received, terminal B displays on the display unit 13 a call screen including the call number specified in this call signal, that is, the number obtained by adding the terminal A identification number to the group number of terminal A. (ST610). As described above, the display unit 13 displays a number obtained by adding the terminal A identification number to the group number of the terminal A that is the transmission source terminal, and the telephone number is not displayed. That is, in the communication system 100, by knowing the group number and identification number of the counterpart terminal, it is possible to perform communication even when the telephone number of the counterpart terminal is not known.

  Next, referring to FIG. 5B and FIG. 8, a case where the source terminal is a terminal that is registered as a member and the destination terminal is a terminal that is not registered as a member and communication is performed for the first time between the two is described. explain. Here, it is assumed that the source terminal is terminal A (for example, mobile phone 1A) and the destination terminal is terminal C (for example, fixed telephone 5). For example, it is assumed that the terminal A is a terminal used in a certain company, and the terminal C is a supplier's terminal. It is assumed that the telephone number of terminal C is not registered in the telephone directory DB 33 and is “03-0000-0000”. Further, it is assumed that the phone number of terminal C is registered in the phone book of terminal A.

  When terminal A communicates with terminal C for the first time, as shown in FIGS. 5 (b) and 8, terminal A's telephone number is designated as the calling party number while terminal C's telephone number is designated as the called party number. A call signal designating the telephone number (terminal C telephone number) is output to mobile communication center 3 (ST801).

  In the mobile communication center 3, this call signal is passed to the authentication processing unit 35, and the authentication processing unit 35 performs authentication processing using the registration information in the telephone directory DB 33 (ST802 to ST804). Specifically, the authentication processing unit 35 inquires of the phone book DB 33 whether or not the terminal A phone number and the terminal C phone number are included in the call signal (ST802), and the terminal A and the terminal C from the phone book DB 33 are checked. (ST803), the authentication result is determined according to the presence / absence of the member registration (ST804). Here, it is assumed that the terminal A is registered as a member, the terminal C is notified that the member is not registered, and an authentication result with authentication OK is obtained.

  That is, in the authentication process shown in FIG. 7, in the example shown in FIG. 8, the incoming call number from terminal A includes the telephone number of terminal C that is not registered as a member. Move on to ST713. In addition, since the calling number is the terminal A telephone number and registered as a member, the authentication result is authentication OK in ST709.

  When the authentication result with the authentication OK is obtained, the call signal described above is passed from the authentication processing unit 35 to the number management unit 34 (ST805). Upon receiving this call signal, the number management unit 34 notifies the phone book DB 33 of the terminal C phone number and the terminal A phone number included therein (ST806), while the group number of the terminal A from the phone book DB 33, A notification of terminal A identification number and a notification that the number of terminal C is unregistered (terminal C number unregistered notification) are received (ST807). Upon receiving this terminal C number unregistered notification, the number management unit 34 requests the guest number issue processing unit 36 to issue a terminal identification number (terminal C identification number) of the terminal C (ST808: terminal C identification). Number issue request). Upon receiving this terminal C specific number payout request, the guest number payout processing unit 36 pays out the group number as the guest number (terminal C specific number) and the terminal C identification number (terminal C identification number), and the telephone directory. Registration (new registration) is performed in the DB 33 (ST809). At this time, the guest number payout processing unit 36 pays out the group number of the terminal A, which is the transmission source terminal, as the group number of the terminal C. Further, the guest number payout processing unit 36 sends the terminal C specific number to the number management unit 34 together with a notification that the terminal C specific number is newly registered in the telephone directory DB 33 (terminal C new registration notification). Output (ST810).

  When the terminal C specific number and the terminal C new registration notification are received, the number management unit 34 performs a process of reflecting the terminal C specific number on the terminal A that is the source terminal (terminal specific number reflection process) (ST811). . This terminal identification number reflection process is executed with the terminal A which is the transmission source terminal, converts the terminal C telephone number registered in the terminal A into the terminal C identification number, and converts the terminal C telephone number into the terminal C telephone number. This process is intended to be erased.

  Here, the terminal specific number reflection process executed by the number management unit 34 will be described with reference to FIG. When the terminal identification number reflection process is started, first, the terminal A telephone number, the terminal C telephone number, the group number, and the terminal are sent from the number management unit 34 to the SMS processing unit realized by the control unit 31 and the communication control unit 32. The C identification number is output (ST901). Upon receiving these number information, the SMS processing unit creates an SMS with the terminal A telephone number as the transmission destination and the number conversion application activation command, the terminal C telephone number, the group number, and the terminal C identification number as the text (ST902). ) And output to terminal A (ST903).

  When this SMS is received by the SMS processing unit realized by the control unit 11 and the communication control unit 12 of the terminal A, the SMS processing unit, the number conversion application activation command, the terminal C phone number, the group number, and the terminal included in this SMS The C identification number is passed to the application control unit 15 (ST904). Upon receiving these, the application control unit 15 activates a number conversion application (ST905). The number conversion application performs a process of converting the terminal C telephone number recorded in the outgoing call history memory or the telephone directory in terminal A into a terminal C specific number (group number and terminal C identification number) (ST906). When this conversion process is completed, the application control unit 15 ends the number conversion application (ST907). In this way, the terminal C telephone number recorded in the terminal A, which is the transmission source terminal, is deleted, and the terminal C specific number is registered instead. It is possible to reliably prevent a situation where the number is leaked.

  After executing such terminal identification number reflection processing, number management section 34 converts number information included in the call signal as shown in FIG. 8 (ST812). In this case, the number management unit 34 converts the calling number into a number obtained by adding the terminal A identification number to the group number of the terminal A, while maintaining the called number as the terminal C telephone number.

  After the number information in the call signal is converted, the converted call signal is output from the number management unit 34 to the terminal C via the communication control unit 32 (ST813). When this call signal is received, the terminal C includes a call screen including the call number specified in the call signal, that is, the number obtained by adding the terminal A identification number to the group number of the terminal A (terminal A specific number). Is displayed on the display unit (ST814). As described above, the display unit displays the terminal A specific number which is the caller terminal, and does not display the telephone number, similarly to the communication between the terminals registered as members described above. That is, in the communication system 100, even when a call is made from the terminal A registered as a member to the terminal C that is not registered as a member, the communication is performed without notifying the terminal C of the telephone number of the terminal A that is the transmission source terminal. It is possible. Further, after the terminal C is registered as a member (guest registration) in the telephone directory DB 33 in this way, communication processing can be performed according to the sequence shown in FIG.

  Next, referring to FIG. 5 (c) and FIG. 10, a case where the source terminal is a terminal that is not registered as a member and the destination terminal is a terminal that is registered as a member, and communication is performed for the first time between the two. explain. Here, it is assumed that the source terminal is a terminal C (for example, a mobile phone (not shown)) and the destination terminal is a terminal A (for example, a mobile phone 1A). For example, it is assumed that the terminal A is a terminal used in a certain company, and the terminal C is a supplier's terminal. Note that the telephone number of the terminal C is not registered in the telephone directory DB 33 as described above, and is “090-9999-9999”. Further, it is assumed that the telephone number of terminal A is registered in the telephone directory of terminal C. Further, terminal C is assumed to have an SMS communication function and an application control function capable of executing a number conversion application, similarly to mobile phone 1A.

  When terminal C communicates with terminal A for the first time, as shown in FIGS. 5 (c) and 10, terminal C's telephone number is designated as the calling number from terminal C, while terminal A's telephone number is the called number. A call signal with a specified number is output to the mobile communication center 3 (ST1001).

  In the mobile communication center 3, this call signal is passed to the authentication processing unit 35, and the authentication processing unit 35 performs authentication processing using the registration information in the telephone directory DB 33 (ST1002 to ST1004). Specifically, the authentication processing unit 35 inquires of the telephone directory DB 33 whether or not the terminal A telephone number and the terminal C telephone number are included in the call signal (ST1002), and the terminal A and terminal C from the telephone directory DB 33 (ST1003), and the authentication result is determined according to the presence / absence of member registration (ST1004). Here, it is assumed that the terminal A is registered as a member, the terminal C is notified that the member is not registered, and an authentication result with authentication OK is obtained.

  That is, in the authentication process shown in FIG. 7, in the example shown in FIG. 10, the incoming call number from terminal C includes the telephone number of terminal A registered as a member, so ST701, ST711 and ST712. After that, in ST709, the authentication result is authenticated OK.

  When the authentication result with the authentication OK is obtained, the call signal described above is passed from the authentication processing unit 35 to the number management unit 34 (ST1005). Upon receiving this calling signal, the number management unit 34 notifies the phone book DB 33 of the terminal A phone number and the terminal C phone number included therein (ST1006), while the group number of the terminal A from the phone book DB 33, Terminal A identification number notification and terminal C number unregistered notification are received (ST1007). Receiving this terminal C number unregistered notification, number management section 34 requests guest number payout processing section 36 to issue a terminal C specific number (ST1008). When this terminal C specific number payout request is received, the guest number payout processing unit 36 pays out the terminal C specific number and registers it in the telephone directory DB 33 (ST1009). At this time, as for the terminal C identification number, the guest number payout processing unit 36 pays out the group number of the terminal A, which is the transmission source terminal, as the group number of the terminal C. Further, the guest number payout processing unit 36 outputs the terminal C specific number together with the terminal C new registration notification to the number management unit 34 (ST1010).

  When receiving the terminal C identification number and the terminal C new registration notification, the number management unit 34 performs a process of reflecting the terminal A specific number on the terminal C that is the transmission source terminal (terminal specific number reflection process) (ST1011). . This terminal identification number reflection process is executed with terminal C, which is the source terminal, and converts the terminal A telephone number registered in terminal C into the terminal A identification number, and converts the terminal A telephone number into the terminal A telephone number. This process is intended to be erased. The terminal identification number reflection process in this case is also executed in the same manner as the terminal identification number reflection process described with reference to FIG. In this way, the terminal A telephone number is converted into the terminal A specific number and the terminal A telephone number is deleted, so that it is possible to reliably prevent the terminal A telephone number from leaking from the terminal C which is the source terminal. It becomes possible.

  And after performing a terminal specific number reflection process, the number management part 34 converts the number information contained in a calling signal (ST1012). In this case, the number management unit 34 converts the calling number into a number obtained by adding the terminal C identification number to the group number of the terminal C (terminal C specific number), while maintaining the called number as the terminal A telephone number. . For example, the number obtained by adding the terminal C identification number to the group number of the terminal C is 090-1234-5678 * 9999 as shown in FIG.

  After the number information in the call signal is converted, the converted call signal is output from the number management unit 34 to the terminal A via the communication control unit 32 (ST1013). Upon receiving this calling signal, terminal A displays a calling screen including the calling number specified in this calling signal, that is, the number obtained by adding the terminal C identification number to the group number of terminal C (terminal C specific number). Is displayed on the display unit 13 (ST1014). As described above, the display unit 13 displays the terminal C specific number that is the caller terminal, and does not display the telephone number, similarly to the communication between the terminals registered as members described above. That is, in the communication system 100, even when a call is made from a terminal C that is not registered as a member to a terminal A that is registered as a member, communication can be performed without notifying the terminal A of the telephone number of the terminal C that is a caller terminal It is possible to do. Further, after the terminal C is registered as a member (guest registration) in the telephone directory DB 33 in this way, communication processing can be performed according to the sequence shown in FIG.

  Next, a case where a malicious third party communicates with a terminal registered as a member using a group number and an identification number will be described with reference to FIGS. Here, it is assumed that the source terminal is the terminal D and the destination terminal is the terminal A (for example, the mobile phone 1A). The telephone number of the terminal D is not registered in the telephone directory DB 33 and is “03-1111-1111”. Further, it is assumed that a number in which the terminal A identification number is added to the group number of terminal A is registered in the phone book of terminal D.

  When the terminal D communicates with the terminal A, as shown in FIGS. 5D and 11, the terminal D designates the telephone number of the terminal D (terminal D telephone number) as the calling number, A call signal in which a number (terminal A specific number) obtained by adding the terminal A identification number to the group number of terminal A is designated as the called number is output to mobile communication center 3 (ST1101).

  In the mobile communication center 3, this call signal is passed to the authentication processing unit 35, and the authentication processing unit 35 performs authentication processing using the registration information in the telephone directory DB 33 (ST1102 to ST1104). Specifically, the authentication processing unit 35 inquires of the phone book DB 33 whether or not the group number, the terminal A identification number, and the terminal D phone number included in the call signal are registered (ST1102), and the terminal A from the phone book DB 33 The terminal D is notified of the presence / absence of member registration (ST1103), and the authentication result is determined according to the presence / absence of the member registration (ST1104). Here, it is assumed that the terminal A is registered as a member, the terminal D is notified that the member is not registered, and an authentication result with the authentication NG is obtained.

  That is, in the authentication process shown in FIG. 7, in the example shown in FIG. 11, the called number of the call signal from the terminal D includes the group number of the terminal A and the terminal A identification number. Therefore, the process proceeds to ST704 through ST701, ST702, and ST703. Further, since the calling number is the terminal D telephone number and the member registration is not performed, the authentication result is set to authentication NG in ST710 through ST704.

  When an authentication result with the authentication NG is obtained, the above-described call signal is passed from the authentication processing unit 35 to the control unit 31 (ST1105). Upon receiving this call signal, the control unit 31 determines that the destination number is not applicable (ST1106), and notifies an error message via the communication control unit 32 (ST1107). In this case, for example, an error message such as “The number you have dialed is not currently used” is output to the terminal D. Thus, the call signal from the terminal D is not transmitted to the terminal A. That is, when a malicious third party communicates with a terminal A registered as a member using a group number and an identification number, it is possible to restrict communication without connecting to the terminal A. ing.

  As described above, in the communication system 100 according to the present embodiment, the telephone number of the source terminal and the terminal identification number of the destination terminal (for example, terminal B) are obtained from the source terminal (for example, terminal A). Upon receiving the call signal including, the mobile communication center 3 converts the telephone number of the source terminal (for example, terminal A) to the corresponding terminal specific number (for example, terminal A specific number), and the destination terminal (for example, for example) Since the terminal identification number of terminal B) (for example, terminal B identification number) is converted into the corresponding telephone number (see FIG. 6), the telephone number of the partner terminal is specified by both the source terminal and the destination terminal. Therefore, it is possible to prevent the leakage of these telephone numbers and effectively limit incoming calls from a third party.

  Further, in the communication system 100 according to the present embodiment, a telephone number of an unregistered destination terminal (for example, terminal C) and a registered source terminal (for example, terminal A) are transmitted from the source terminal (for example, terminal A). For example, when a call signal including the telephone number of the terminal A) is received, the mobile communication center 3 newly sets the telephone number and terminal specific number (for example, terminal C specific number) of the destination terminal (for example, terminal C). sign up. As a result, even if the telephone number of the destination terminal (for example, terminal C) is not registered, if the call originates from the source terminal (for example, terminal A) registered in the mobile communication center 3, the transmission is performed. Since the telephone number and terminal identification number (for example, terminal C identification number) of the destination terminal (for example, terminal C) are newly registered (see FIG. 8), thereafter, the terminal identification number (for example, terminal C identification number) It becomes possible to communicate using. Note that the telephone number of the caller terminal (for example, terminal A) included in the call signal is converted into the caller terminal's terminal specific signal (for example, terminal A specific number) in the mobile communication center 3, so The telephone number of the caller terminal (for example, terminal A) is not notified to the destination terminal (for example, terminal C).

  Furthermore, in communication system 100 according to the present embodiment, the telephone number of an unregistered source terminal (for example, terminal C) and the registered destination terminal (for example, terminal C) are transmitted from the source terminal (for example, terminal C). For example, when a call signal including the telephone number of the terminal A) is received, the mobile communication center 3 newly sets the telephone number and the terminal specific number (for example, the terminal C specific number) of the caller terminal (for example, the terminal C). sign up. As a result, even if the telephone number of the source terminal (for example, terminal C) is not registered, if the call is transmitted to the destination terminal (for example, terminal A) registered in the mobile communication center 3, Since the telephone number and terminal identification number (for example, terminal C identification number) of the original terminal (for example, terminal C) are newly registered (see FIG. 10), thereafter, the terminal identification number (for example, terminal C identification number) It becomes possible to communicate using. Note that the telephone number of the caller terminal (for example, terminal C) included in the call signal is converted into a terminal identification signal (for example, terminal C specific number) of the caller terminal (for example, terminal C) in the mobile communication center 3. Therefore, the telephone number of the source terminal (for example, terminal C) is not notified to the destination terminal (for example, terminal A).

  Furthermore, in the communication system 100 according to the present embodiment, the telephone number of an unregistered source terminal (for example, terminal D) and the registered destination terminal (for example, terminal D) are transmitted from the source terminal (for example, terminal D). For example, when receiving a call signal including the terminal identification number (for example, the terminal A identification number) of the terminal A), the mobile communication center 3 transmits the call signal to the destination terminal (for example, the terminal A). Is rejected (see FIG. 11). Thereby, even if it is a case where the terminal specific number (for example, terminal A specific number) of the transmission destination terminal (for example, terminal A) registered in the mobile communication center 3 is designated in the call signal, it is not registered. Since it is possible to reject a call from a source terminal (for example, terminal D), a malicious third party who has obtained a terminal specific number (for example, terminal A specific number) of a destination terminal (for example, terminal A) Can be reliably prevented.

  The present invention is not limited to the embodiment described above, and can be implemented with various modifications. For example, the processing unit and the processing procedure can be changed as appropriate without departing from the scope of the present invention. Other modifications can be made without departing from the scope of the present invention.

It is a figure which shows schematic structure of the communication system which concerns on one embodiment of this invention. It is a block diagram which shows the structure of the mobile telephone which concerns on the said embodiment. It is a block diagram which shows the structure of the mobile communication center which concerns on the said embodiment. It is a figure which shows an example of the telephone directory data registered into telephone directory DB of the mobile communication center which concerns on the said embodiment. It is a figure for demonstrating the classification of the terminal which performs a communication process in the communication system which concerns on the said embodiment. It is a sequence diagram for demonstrating the communication process performed between terminals in the communication system which concerns on the said embodiment. It is a flowchart for demonstrating the authentication process performed in the mobile communication center of the communication system which concerns on the said embodiment. It is a sequence diagram for demonstrating the communication process performed between terminals in the communication system which concerns on the said embodiment. It is a sequence diagram for demonstrating the terminal specific number determination process performed between the mobile communication center and terminal of the communication system which concerns on the said embodiment. It is a sequence diagram for demonstrating the communication process performed between terminals in the communication system which concerns on the said embodiment. It is a sequence diagram for demonstrating the communication process performed between terminals in the communication system which concerns on the said embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Mobile phone 2 Mobile communication network 3 Mobile communication center 4 Fixed communication network 5 Fixed telephone 11 Control part 12 Communication control part 13 Display part 14 Operation part 15 Application control part 31 Control part 32 Communication control part 33 Telephone directory database (DB)
34 Number management unit 35 Authentication processing unit 36 Guest number payout processing unit 100 Communication system

Claims (11)

A communication system comprising a terminal to which a telephone number is assigned, a communication management apparatus that registers and associates a telephone number of the terminal, an alternative telephone number different from the telephone number, and an identification number for identifying each terminal. And
When receiving a call signal including the telephone number of the unregistered destination terminal and the registered telephone number of the source terminal from the source terminal, the communication management device transmits the telephone number of the destination terminal. Is newly registered, a terminal identification number obtained by adding the identification number to the alternative telephone number and corresponding to the destination terminal is newly registered, and the telephone number of the source terminal is assigned to the source terminal. A communication system characterized in that a call signal including the converted number information is transmitted to the destination terminal after being converted into the terminal identification number corresponding to. When the telephone number of the destination terminal is newly registered, the communication management device converts the telephone number of the destination terminal registered in the source terminal into the terminal identification number of the destination terminal. The communication system according to claim 1 . A communication system comprising a terminal to which a telephone number is assigned, a communication management apparatus that registers and associates a telephone number of the terminal, an alternative telephone number different from the telephone number, and an identification number for identifying each terminal. And
When receiving a call signal including a telephone number of the unregistered source terminal and a registered destination terminal telephone number from the source terminal, the communication management device transmits the telephone number of the source terminal. Is newly registered, a terminal identification number obtained by adding the identification number to the alternative telephone number and corresponding to the source terminal, and the telephone number of the source terminal is set as the source terminal. Is converted to the terminal identification number corresponding to the telephone number, the terminal identification number of the destination terminal is converted to the telephone number of the destination terminal, and a call signal including the converted number information is transmitted to the destination terminal. A communication system. When the communication management device newly registers the telephone number of the caller terminal, the communication management device converts the telephone number of the callee terminal registered in the caller terminal into the terminal identification number of the callee terminal. The communication system according to claim 3 . When receiving a call signal including the telephone number of the unregistered caller terminal and the terminal identification number of the registered callee terminal from the caller terminal, the communication management device The communication system according to any one of claims 1 to 4 , wherein transmission of a signal to the destination terminal is rejected. Communication system according to one of claims 1 to 5, characterized in that assigning the same of the alternate telephone number to the plurality of terminals. This is a communication method using a terminal to which a telephone number is assigned, a communication management apparatus that registers and associates the telephone number of the terminal, an alternative telephone number different from the telephone number, and an identification number for identifying each terminal. And
Receiving a call signal including a telephone number of an unregistered destination terminal and a registered telephone number of the source terminal from the source terminal by the communication management device; and calling the destination terminal Registering a new number, and newly registering a terminal specific number corresponding to the destination terminal, which is a terminal specific number obtained by adding the identification number to the alternative telephone number, and the telephone number of the source terminal the terminal and away step to convert to a particular number, a communication method characterized by comprising the steps of: transmitting a call signal to the destination terminal including number information after conversion corresponding to the originating terminal. When the telephone number of the destination terminal is newly registered, the communication management device converts the telephone number of the destination terminal registered in the source terminal into the terminal identification number of the destination terminal. The communication method according to claim 7 . This is a communication method using a terminal to which a telephone number is assigned, a communication management apparatus that registers and associates the telephone number of the terminal, an alternative telephone number different from the telephone number, and an identification number for identifying each terminal. And
Receiving a call signal including the telephone number of the unregistered source terminal and the registered telephone number of the destination terminal from the source terminal at the communication management device; and the telephone of the source terminal A new registration of a number, a step of newly registering the terminal identification number corresponding to the source terminal, which is a terminal identification number obtained by adding the identification number to the alternative telephone number, and the telephone number of the source terminal A step of converting the terminal identification number corresponding to the source terminal and the terminal identification number of the destination terminal into a telephone number of the destination terminal; and a calling signal including the converted number information communication method characterized by comprising the steps of: transmitting to the destination terminal. When the communication management device newly registers the telephone number of the caller terminal, the communication management device converts the telephone number of the callee terminal registered in the caller terminal into the terminal identification number of the callee terminal. The communication method according to claim 9 . When receiving a call signal including the telephone number of the unregistered caller terminal and the terminal identification number of the registered callee terminal from the caller terminal, the communication management device The communication method according to any one of claims 7 to 10 , wherein transmission of a signal to the destination terminal is rejected.

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