JP4857036B2 - Callee related information notification server, callee related information notification program, and callee related information notification system - Google Patents

Description

  The present invention relates to a call destination related information notification server, a call destination related information notification program, and a call destination related information notification system for notifying a user of information on a call destination called from a user terminal owned by the user. It is.

  In recent years, phishing incidents using VoIP (Voice over Internet Protocol) have begun to be reported. Phishing using VoIP means, for example, impersonating an existing financial institution, sending an email containing the VoIP number to the user, and directing the user to call the VoIP number. When calling a number, it refers to the act of connecting to a website disguised as an automated voice system such as a financial institution and giving up personal information such as the user's account number and password.

  Such a problem is considered to be caused by the fact that the user is ignorant of fraud on the network and that the call destination that the user calls can be recognized only by the telephone number.

  In particular, those who use this <tel> tag to perform phishing on mobile phones that have a built-in e-mail function and use the <tel> tag to facilitate cooperation with the telephone service. Expected to increase.

  Therefore, various technical measures are considered for such problems. For example, a directory server or the like is used to search (reverse lookup) an employee name or employee number from an extension number. In addition, it has been practiced to search a telephone number by subtracting a company name from a telephone number book.

  Further, in a service using SIP (Session Initiation Protocol), a user presence management function using a location server is implemented. Callback was used to confirm the caller's identity. Furthermore, a caller notification / non-notification service (186/184), an incoming call rejection service, and the like have been realized to prevent mischievous calls.

  Furthermore, as described in Patent Document 1, by applying the confirmation of the caller's identity with a telephone number, advanced telephone services such as making payments, and improving security such as preventing mischief calls A measure has been proposed.

JP 2004-128824 A

  However, conventional techniques such as the above-mentioned Patent Document 1 cannot suppress damage caused by phishing. In other words, phishing means that when a caller makes a call, even if the caller wants to call and the actual callee is different, the caller doesn't notice it, or It is thought that it is an attack that is difficult to notice, and the conventional method of confirming the identity of the sender described above cannot prevent damage caused by phishing.

  The present invention has been made in view of such a problem, and notifies the caller whether or not the other party who wants to make a call matches the other party who actually makes the call. It is possible to prevent damage caused by phishing.

  The call destination related information notification server according to the present invention is a call destination related information notification server for notifying call destination related information related to a call destination called by a user terminal used by a user, Calling number receiving means for receiving a calling number in the call when the call is made by the user terminal, and when the calling number is received by the calling number receiving means, the telephone number and the telephone number From the phone book information storage database storing the phone book information associated with the user information indicating the user, the user information associated with the same telephone number as the received calling number is Call destination related information reading means for reading as call destination related information, and call destination related information transmitting means for transmitting the call destination related information read by the call destination related information reading means to the user terminal. With this And wherein the

  With the configuration described above, it is possible to notify the user of related information of a call destination that is called from a user terminal owned by the user. For this reason, the user can reliably avoid phishing and the like.

  In addition, the call destination related information notification server according to the present invention may include a call request information transmission unit that transmits call request information for calling a call destination based on a call from the user terminal. Good.

  Further, the incoming call request information transmitting means responds to receiving a call permission notice from the user terminal after transmitting the call destination related information to the user terminal by the call destination related information transmitting means. The incoming call request information may be transmitted. By adopting such a configuration, it is possible to present the call destination information to the user and make the user terminal determine whether or not to make a call. Therefore, the user needs sufficient time for the determination. Is possible.

  The phone book information storage database stores an electronic signature of a registrant who has registered the phone book information, and the call destination related information reading means includes the call destination related information together with the call destination related information. The electronic signature of the registrant who registered the related information may be read, and the call destination related information transmission unit may transmit the electronic signature together with the call destination related information. With such a configuration, it is possible to improve the reliability of the call destination related information.

  The telephone directory information may include a registrant and a registration date of the telephone directory information in addition to the telephone number and user information.

  The terminal information preset in the user terminal is stored, and the call destination related information reading unit is stored in the terminal information and the terminal information database transmitted when the user terminal makes a call. The call destination related information may be read when the received terminal information matches.

  The telephone directory information includes an IP address associated with a telephone number, and the calling destination related information reading means is the same as the received calling number when receiving the calling number from the user terminal. The IP address associated with the telephone number is read, and the terminal information obtained by accessing the terminal to which the read IP address is assigned is compared with the contents of the phone book information, The call destination related information transmitting means may transmit the result of the collation together with the call destination related information to the user terminal. By adopting such a configuration, it is possible to confirm again the authenticity of the information of the callee terminal, and to avoid the user terminal from attacks such as farming.

  A call destination related information notification program according to the present invention is a call destination related information notification program for notifying call destination related information related to a call destination called by a user terminal used by a user. A call number receiving step for receiving a call number in the call when the call is made by the user terminal, and a telephone number when receiving the call number in the call number receiving step. The user associated with the same telephone number as the received calling number from the telephone directory information storage database storing the telephone directory information associated with the user information indicating the user of the telephone number Call destination related information reading step for reading out information as the call destination related information, and transmitting the call destination related information read in the call destination related information reading step to the user terminal Executing a call destination-related information transmission step.

  The call destination related information notification system according to the present invention includes a user terminal used by a user, a call destination terminal called by the user terminal, and call destination related information related to the call destination terminal. A call destination related information notification system comprising a call destination related information notification server for notifying a user terminal, wherein the call destination related information notification server includes a call destination related information notification server when a call is made by the user terminal. Calling number receiving means for receiving a calling number, and when the calling number is received by the calling number receiving means, a telephone number is associated with user information indicating a user of the telephone number Read the call destination related information from the phone book information storage database in which the phone book information is stored, and read out the user information associated with the same telephone number as the received call number as the call destination related information. Start When, characterized in that a call destination-related information sending means for sending the call destination-related information read out by 該発Ko destination related information reading means to the user terminal.

  According to the present invention, a call destination related information notification server, a call destination related information notification program, and a call destination that notify a user of call destination related information of a call destination called from a user terminal owned by the user. A related information notification system can be provided.

[First embodiment]
A first embodiment according to the present invention will be described with reference to FIG. FIG. 1 is a block diagram showing a schematic configuration of a system 100 according to the first embodiment of the present invention.

  As shown in FIG. 1, the call destination related information notification system 100 of this example includes a call destination related information notification server 10, a user terminal 20, a call destination terminal 30, a call number and a call accompanying it. Phone book terminal 40 having destination related information. The call destination related information notification server 10, the call destination terminal 30, and the telephone directory terminal 40 are connected to a communication network 50 such as the Internet. The user terminal 20 is connected to the communication network 50 via the repeater 60.

  The call destination related information notification server 10 is configured by an information processing apparatus such as a WWW (World Wide Web) server or a workstation server, and is managed by an administrator of the system 100, for example. Specifically, the call destination related information notification server 10 is managed by, for example, a network management company with which a contract has been made so that the user terminal 20 is monitored by the user.

  The user terminal 20 is configured by an information processing device such as a mobile phone, a personal computer, or a PDA (Personal Digital Assistance). The user terminal 20 is managed by a user who uses the system 100. The user terminal 20 has various functions such as a display function (specifically, a display screen) for displaying various information received via the communication network 50. The user terminal 20 is a call terminal using an IP address such as a SIP phone.

  The call destination terminal 30 is configured by an information processing apparatus such as a WWW server or a workstation server, for example. Specifically, as the call destination terminal 30, for example, a regular bank automatic voice system or a fake bank automatic voice system can be considered.

  The telephone directory terminal 40 includes a telephone directory DB 41 in which a calling number and call destination related information associated therewith are stored. The phone book DB 41 is configured by a database device, for example, and includes various information such as a phone number and call destination related information related to the phone number. As shown in FIG. 2, this call destination related information is stored in three tables: a superior telephone number table 41a, a cautionary telephone number table 41b, and a message table 41c.

  The excellent telephone number table 41a stores a telephone number 41a that is properly registered in the calling number notification server 10 and call destination related information 41ab to 41ac that is information related to the telephone number 41a. The fields of the excellent telephone number table 41a include a telephone number 41aa (for example, 050-pppp-qqqq), a telephone number destination ID 41ab (for example, A bank), and confirmer information 41ac (for example, a telephone number destination registered). For example, Z communication, etc.) and registration date information 41ad (for example, 2004/04/01, etc.) in which a telephone number is registered are set. The telephone number 41aa is set as a primary key.

  The phone number table 41b requiring attention stores a phone number 41ba that is suspected of phishing and the like registered by notification from the user and the like, and call destination related information 41bb that is information related to the phone number 41ba. . A phone number 41ba (for example, 050-qqqq-www) and a registration date 41bb (for example, 2006/01/10) of the phone number 41ba are set in the fields of the phone number table 41b requiring attention. . The telephone number 41ba is set as a primary key.

  The message transmitted from the call destination is stored in the message table 41c. In the field of the message table 41c, a call destination ID 41ab and a message 41cc (for example, “mortgage, interest rate fee xxx”) transmitted from the number are set. The call destination ID 41ab is set as a primary key.

  FIG. 3 is a block diagram illustrating an example of the configuration of the call destination related information notification server 10. As shown in FIG. 3, the call destination related information notification server 10 includes a data input unit 11, a data display unit 12, a data communication unit 13, a call number receiving unit 14, and a call destination related information reading unit. 15, a call destination related information transmission unit 16, an incoming call request information transmission unit 17, and a registered user DB 18 storing user information such as a telephone number of a registered user who accesses the call destination related information notification server 10. Prepare.

  The data input unit 11 is configured by an information input device such as a keyboard or a mouse, for example, and is used when, for example, an administrator of the server 10 inputs various information. The data display unit 12 is configured by a display device such as an LCD (Liquid Crystal Display), and is used to display various types of information. The data communication unit 13 has a function of transmitting and receiving various types of information between the call destination terminal 20 and the user terminal 30 via the communication network 40, for example.

  The calling number receiving unit 14 has a function of receiving a calling number when the user terminal 20 makes a call.

  The call destination related information reading unit 15 has a function of reading the call destination related information from the telephone directory DB 41 based on the call number received from the user terminal 20.

  The call destination related information transmitting unit 16 has a function of transmitting the call destination related information read by the call destination related information reading unit 16 to the user terminal 20 that has made the call. Here, for example, general SIP information includes a start line, a header field, and a body. In this example, the call destination related information transmission unit 16 describes the call destination related information in the header field of the SIP information as in the following examples (1) to (4), and transmits it to the user terminal 20. .

(1) First example of adding a new attribute to the header field of SIP information-ReceiverID: Bank A-ConfirmedBy: JT
― MessageFromReceiver: “Mortgage, interest rate fee xxx.”
(2) Second example of adding a new attribute to the header field of SIP information ― ReceiverInfo: ReceiverID = “A bank”; ConfirmedBy = “JT”; MessageFromReceiver: “Mortgage, interest fee xxx.”
(3) Example of using existing attribute such as Warning attribute in header field of SIP information ― Warning: ReceiverID = “A bank”; ConfirmedBy = “JT”; MessageFromReceiver: “Mortgage, interest fee xxx.”
(4) Example of a high possibility of being a phishing site ― ReceiverInfo: Warning = “The customer you call is suspected of phishing.”

  The incoming call request information transmission unit 17 transmits incoming call request information for calling a call destination based on a call from the user terminal 20. The incoming call request information transmission unit 17 responds to the reception of the call permission notification from the user terminal 20 after the call destination related information transmission unit 16 transmits the call destination related information to the user terminal 20. And has a function of transmitting incoming call request information.

  Next, the operation of the system 100 will be described with reference to FIGS. 4 and 5 as appropriate. FIG. 4 is a flowchart showing an operation example of the system 100 according to an embodiment of the present invention. FIG. 5 is a conceptual diagram showing a processing flow of the system 100.

  Here, an example will be described in which user B calls the A bank automatic voice system. It is assumed that the A bank automatic voice system has registered the calling number, the call destination related information, etc. in advance in the phone book DB 41 in advance.

  First, the user terminal 20 dials (calls) the calling number according to the operation of the user B (step S101). In accordance with the calling number dialing, the user terminal 20 creates an INVITE message in which the calling number is described (step S102). In addition, in this INVITE message (hereinafter referred to as IVM), registration presence / absence information indicating the IP address of the user terminal 20, the calling number, and the confirmation result of whether or not the calling number is registered in the address book of the user terminal 20 Is included. Then, the user terminal 20 transmits the IVM to the call destination related information notification server 10 (step S103, FIG. 5 (1)).

  The calling number receiving unit 14 uses the registration presence / absence information indicating whether the calling number called by the user terminal 20 is stored in the address book of the user terminal 20 in the received IVM. It is determined whether confirmation is necessary (step S104). Here, if the calling number is registered in advance in the address book of the user terminal 20 (N in Step S104), the processing after Step S105 is not executed, and the normal calling processing is executed. On the other hand, if the calling number is not registered in advance in the address book of the user terminal 20 (Y in step S104), the calling destination related information reading unit 15 calls the calling number included in the IVM. It transmits to the book terminal 40 (step S105, FIG. 5 (2)). Further, the call destination related information notification server 20 may execute an operation of ending this process if the call number is not stored in the address book of the user terminal 20 in the determination in step S104. With such an operation, it is possible to avoid a situation in which a call destination terminal 30 that is not stored in the address book of the user terminal 20 is in a call state. In particular, in the case of a user terminal having a FAX transmission / reception function, the above process is a useful process for preventing erroneous FAX transmission from the user terminal.

  Based on the received call number, the phone book terminal 40 reads the call destination related information associated with the received call number from the phone book DB 41 (step S106). Then, the telephone directory terminal 40 transmits the read call destination related information to the call destination related information notification server 10 (step S107, FIG. 5 (3)).

  In the call destination related information notification server 10, the call destination related information reading unit 15 creates a Trying message (hereinafter referred to as “TM”) including the calling number and the call destination related information (step S108). , TM is transmitted to the user terminal 20 (step S109, FIG. 5 (4)). Subsequently, in the call destination related information notification server 10, the call request information transmission unit 17 transmits IVM as call request information to the call destination terminal 30 (step 110, FIG. 5 (5)).

  The call destination terminal 30 receives the IVM and enters, for example, a calling state that emits a ringing tone (step S111). Similarly to the normal telephone processing, if the call destination terminal 30 is off-hooked, the user terminal 20 and the call destination terminal 30 can talk.

  On the other hand, the user terminal 20 receives the TM from the call destination related information notification server 10 and displays the call destination number and the call destination related information on the display (step S112).

  In the display process of step S112, the call destination number and the call destination related information may be displayed as they are on the display of the user terminal 20, but for example, a display as shown in FIG. 6 may be made. . For example, in the case of the calling number stored in the excellent telephone number table 41a of the telephone directory DB 41, as shown in FIG. 6 (a), “The customer is calling the bank A now. Is it correct? ”Is displayed.

  Further, for example, in the case where the calling number is stored in the phone number table 41b requiring attention in the phone book DB 41, as shown in FIG. 6 (b), “the call destination that the customer is calling is suspected of phishing. Is there any error? ”Is displayed.

  Further, for example, when the calling number is not stored in the telephone number table 41a, 41b in the phone book DB 41, as shown in FIG. It ’s not listed here. It ’s not a public institution. ”

  Therefore, the user B can visually check the display on the display of the user terminal 20 as described above and determine whether to continue calling the call destination of the call number or calling with the call destination. it can. When canceling a call or a call, the user B may press an on-hook button or the like of the user terminal 20, for example. Since the user B can make such a determination, when a call is made to an unintended terminal that is suspected to be Phishing, the call can be canceled before the response.

[Second Embodiment]
Next, a system according to a second embodiment of the present invention will be described with reference to FIG. The system according to the second embodiment is different from the first embodiment in step S108 and subsequent steps of the process shown in FIG. In other words, the call destination related information transmitting unit 16 creates the transmission destination related information including the transmission determination information that causes the TM to determine whether the user terminal 20 transmits the IVM to the call destination terminal 30 when receiving the call destination related information. Then, the IVM is transmitted to the user terminal 20 (step S209).

  Next, the user terminal 20 receives the TM, and performs the same processing as in step S112 described above (step S210). Then, the user terminal 20 displays a display for accepting a determination as to whether or not to connect to the call destination terminal 30 on the display (step S211). Here, when the user terminal 20 receives a determination from the user B that “do not connect” (N in step S211), the flow ends. On the other hand, when the user terminal 20 accepts the determination of “connecting” from the user B (Y in step S211), the IVM is again transmitted to the call destination terminal 30 so that the IVM is again transmitted to the call destination related information notification server. 20 (step S212). Subsequently, in the call destination related information notification server 10, the call request information transmitting unit 17 transfers the IVM to the call destination terminal 30 as call request information (step S213). Then, the call destination terminal 30 receives the IVM and enters a calling state (step S214). Thereafter, as in the case of normal telephone processing, if the off-hook button is pressed, the user terminal 20 and the call destination terminal 30 can talk.

  By setting it as such a structure, compared with 1st embodiment, it becomes possible to give sufficient time to make the user B judge whether it connects to the call destination terminal 30 or not.

[Third embodiment]
Next, a system 100 ′ according to the third embodiment will be described with reference to FIG. The system 100 ′ according to the third embodiment is different from the first and second embodiments in that the telephone directory terminal 40 is omitted and the telephone directory DB 41 is provided in the call destination related information notification server 10 ′. Since other configurations are the same as those of the first and second embodiments, the same reference numerals are given and the description thereof is omitted. By setting it as such a structure, system 100 'concerning 3rd embodiment can acquire the effect similar to 1st and 2nd embodiment.

[Fourth embodiment]
Next, a system 100 ″ according to a fourth embodiment of the present invention will be described with reference to FIG. The system 100 ″ according to the fourth embodiment is different from the third embodiment in that the user terminal 20 ′ is a PSTN (Public Switched Telephone Networks) terminal. In the system according to the fourth embodiment, a modem router 70 is provided on the network 50 corresponding to the user terminal 20 ′ that is a PSTN terminal. Other configurations are the same as those of the third embodiment, and the same reference numerals are given to the configurations and the description thereof is omitted.

  The modem router 70 has a function of converting dialing from the user terminal 20 'into the IP protocol. In addition, either the modem router 70 or the user terminal 20 'is provided with a display. As in the first to third embodiments, the user terminal 20 ′ can accept a determination as to whether or not to connect to the call destination terminal 30 by displaying on the display.

  The modem router 70 is not limited to the configuration provided on the network 50, and the call destination related information notification server 10 'may include the modem router 70.

  According to the system 100 ″ according to the fourth embodiment as described above, even if the user terminal is a PSTN terminal, it is possible to obtain the same effects as those of the above-described embodiments.

[Fifth embodiment]
Next, a system 100 ′ ″ according to a fifth embodiment of the present invention will be described with reference to FIG. The system 100 ′ ″ according to the fifth embodiment is different from the fourth embodiment in that the modem router 70 is omitted. Further, since the PSTN line is provided between the user terminal 20 ′ and the call destination related information notification server 10 ″, the configuration of the call destination related information notification server 10 ″ is also different from that of the fourth embodiment. Since other configurations are the same as those of the fourth embodiment, the same reference numerals are given and description thereof is omitted.

  The call number receiving unit of the call destination related information notification server 10 ″ has a function of determining whether or not to execute the processing of the present system from the dial sound emitted from the user terminal 20 ′. The calling number receiving unit determines whether or not a call is made from the user terminal 20 ′ by adding a specific number (a number in which a business number and a service number are listed) to the beginning of the telephone number. Only when a call is made with a specific number at the beginning, the call number is received.

  Further, terminal information specific to each terminal that is transmitted at the time of making a call is set in advance in the user terminal 20 ′, and the call destination related information reading unit receives the terminal information stored in the registered user DB 18 and the received information. The call destination related information is read only when the received terminal information matches. That is, only the user terminal whose terminal information is stored in the registered user DB 18 performs processing after reading of the call destination related information, for example, display processing of the call destination number and call destination related information, etc. The Then, the call destination related information transmission unit of the call destination related information notification server 10 ″ has a function of transmitting voice information prepared in advance included in the call destination related information to the user terminal 20 ′.

  According to the system 100 ′ ″ according to the fifth embodiment as described above, even if the user terminal is a PSTN terminal and the modem router 70 is not provided, the same as in each of the embodiments described above. An effect can be obtained.

  Although the embodiments of the invention have been described above, the present invention is not limited to these embodiments, and various modifications, additions, substitutions, and the like can be made without departing from the spirit of the invention. For example, the present system may be configured to provide a plurality of calling number notification servers 10 (10 ', 10' ') and a telephone directory terminal 40.

  Moreover, in the said embodiment, it can also be set as the structure which makes the call destination related server 10 (10 ', 10' ') confirm the information of the call destination terminal 30 further. For example, the telephone directory DB 41 is configured to include an IP address corresponding to the telephone number, and the calling destination related information reading unit receives the calling number received with the reception of the calling number from the user terminal 20 (20 ′). The IP address associated with the same telephone number is read out, and the terminal information obtained by accessing the terminal to which the read IP address is assigned is compared with the contents of the telephone directory DB 41, The call destination related information transmission unit may be configured to transmit the result of collation together with the call destination related information to the user terminal 20 (20 ′). With such a configuration, the authenticity of the information of the call destination terminal 30 can be confirmed anew, and the user terminal 20 (20 ') can be avoided from attacks such as farming.

1 is a block diagram showing a schematic configuration of a system according to a first embodiment of the present invention. It is a figure which shows the structure of telephone directory DB of the system which concerns on 1st embodiment of this invention. It is a block diagram which shows the structure of the call destination relevant information notification server of the system which concerns on 1st embodiment of this invention. It is a flowchart in the system which concerns on 1st embodiment of this invention. It is a figure which shows the outline | summary of operation | movement of the system which concerns on 1st embodiment of this invention. It is a figure which shows an example displayed on the display of the user terminal of the system which concerns on 1st embodiment of this invention. It is a flowchart in the system which concerns on 2nd embodiment of this invention. It is a block diagram which shows schematic structure of the system which concerns on 3rd embodiment of this invention. It is a block diagram which shows schematic structure of the system which concerns on 4th embodiment of this invention. It is a block diagram which shows schematic structure of the system which concerns on 5th embodiment of this invention.

Explanation of symbols

10, 10 ′, 10 ″ Call destination related information notification server 20, 20 ′ User terminal 30 Call destination terminal 40 Phone book terminal 50 Communication network 60 Repeater 70 Modem router 100, 100 ′, 100 ″, 100 ′ '' System

Claims (7)

A call destination related information notification server for notifying call destination related information related to a call destination called by a user terminal used by a user,
Calling number receiving means for receiving a calling number in the call when called by the user terminal;
When the calling number is received by the calling number receiving means, from a phone book information storage database storing phone book information in which a telephone number and user information indicating a user of the telephone number are associated with each other Call destination related information reading means for reading out user information associated with the same telephone number as the received call number as the call destination related information;
Creating a message including the call destination related information read by the call destination related information reading means, and sending the created message to the user terminal;
In response to receiving a call permission notification from the user terminal after transmitting a message including the call destination related information to the user terminal by the call destination related information transmitting means. A call destination related information notification server comprising: call request information transmission means for transmitting call request information for calling a call destination based on a call . The phone book information storage database stores the electronic signature of the registrant who registered the phone book information,
The call destination related information reading means reads the electronic signature of the registrant who registered the call destination related information together with the call destination related information,
The call destination-related information transmission means, the call destination-related information notification server according to claim 1, wherein transmitting said digital signature with said call destination-related information. 3. The call destination related information notification server according to claim 1, wherein the telephone directory information includes a registrant and a registration date of the telephone directory information in addition to a telephone number and user information. Store terminal information preset in the user terminal,
The call destination related information reading unit reads the call destination related information when the terminal information transmitted when a call is made by the user terminal matches the terminal information stored in the terminal information database. The call destination related information notification server according to any one of claims 1 to 3 . The phone book information includes an IP address associated with a telephone number,
The call destination related information reading means reads an IP address associated with the same telephone number as the received call number when the call number is received from the user terminal, and the read IP address is Collating the information of the terminal obtained by accessing the assigned terminal and the contents of the phone book information,
The call destination-related information transmission means, the call destination-related information notification server according to any one of claims 1 to 4 for transmitting the result of the collation with the called party related information to the user terminal. A call destination related information notification program for notifying call destination related information related to a call destination called by a user terminal used by a user,
On the computer,
A call number receiving step of receiving a call number in the call when the call is made by the user terminal;
A telephone directory information storage database that stores telephone directory information in which a telephone number and user information indicating a user of the telephone number are associated when the calling number is received in the calling number receiving step. A call destination related information reading step of reading out user information associated with the same telephone number as the received call number as the call destination related information;
Creating a message containing the call destination related information read in the call destination related information reading step, and sending the created message to the user terminal;
In response to receiving a call permission notification from the user terminal after transmitting a message including the call destination related information to the user terminal in the call destination related information transmission step , A call destination related information notification program for executing a call request information transmission step of transmitting call request information for calling a call destination based on a call . A user terminal used by the user; a call destination terminal called by the user terminal; a call destination related information notification server for notifying the user terminal of call destination related information related to the call destination terminal; A call destination related information notification system comprising:
The call destination related information notification server includes:
Calling number receiving means for receiving a calling number in the call when called by the user terminal;
When the calling number is received by the calling number receiving means, from a phone book information storage database storing phone book information in which a telephone number and user information indicating a user of the telephone number are associated with each other Call destination related information reading means for reading out user information associated with the same telephone number as the received call number as the call destination related information;
Creating a message including the call destination related information read by the call destination related information reading means, and sending the created message to the user terminal;
In response to receiving a call permission notification from the user terminal after transmitting a message including the call destination related information to the user terminal by the call destination related information transmitting means. A call destination related information notification system comprising: call request information transmission means for transmitting call request information for calling a call destination based on a call .

Images