JP2008102864A - Communication terminal, communication method, and communication program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To inhibit one communication terminal from referring to presence information of the other communication terminal. <P>SOLUTION: This communication terminal is provided with: a registration request transmitting part for transmitting first registration request information to the other communication terminal; a permission receiving part for receiving first permission information from the other communication terminal; a registration request receiving part for receiving second registration request information from the other communication terminal; a permission transmitting part for automatically transmitting the second permission information to the other communication terminal on receipt of the first permission information and the second registration request information; a registration conformation receiving part for receiving registration confirmation information after transmitting the second permission information; a status acquiring part for acquiring second status information after the first permission information is received by the permission receiving part; and notification part for notifying a status shown by the second status information after receiving the registration confirmation information. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a communication terminal, a communication method, and a communication program. In particular, the present invention relates to a communication terminal, a communication method, and a communication program that acquire and display status information indicating the status of a user of another communication terminal.

In Patent Document 1, when a request for providing presence information is received from a communication terminal, it is confirmed whether or not the user of the communication terminal is registered in the group list recorded by the presence server. Describes a communication system for registering the user in the contact list. Patent Document 2 discloses a list of communication terminals that have requested provision of presence information when the provision of presence information is approved for a communication terminal that has requested provision of presence information in instant messaging. It describes that it is registered in the terminal.
JP 2002-366495 A JP 2004-302763 A

  However, the inventions described in Patent Document 1 and Patent Document 2 do not disclose a specific method for realizing mutual authentication between users of communication terminals and registration in a contact list. Further, when an error occurs in the registration process during the mutual authentication and contact list registration process, there may be a discrepancy in the recognition of the state of the communication terminal between the communication terminal and the server.

  Then, an object of this invention is to provide the communication terminal, the communication method, and communication program which can solve the said subject. This object is achieved by a combination of features described in the independent claims. The dependent claims define further advantageous specific examples of the present invention.

  In order to solve the above problem, in the first embodiment of the present invention, a communication terminal that acquires and displays status information indicating the status of a user of another communication terminal, the status of the user of the communication terminal being displayed. When the user of the other communication terminal is requested to receive the first status information shown and the user of the communication terminal approves, the first status information is provided to the other communication terminal, and the user of the other communication terminal Communication with a communication control device that provides the second status information to the communication terminal when the user of the communication terminal is requested to receive the second status information indicating the status of the request and is approved by the user of the other communication terminal. A registration request transmitting unit for transmitting the first registration request information for requesting reception of the second status information to another communication terminal via the communication control device, and a first registration request information. On the other hand, the communication terminal is approved by the user of the other communication terminal to receive the second status information, and the communication control device is set to provide the second status information to the communication terminal. A permission receiving unit for receiving one permission information from another communication terminal, a registration request receiving unit for receiving second registration request information for requesting reception of the first status information, and first permission information. The second permission information indicating that the other communication terminal is authorized to receive the first status information triggered by the reception of the second registration request information is sent to the other communication terminal via the communication control device. And a registration confirmation receiving unit for receiving registration confirmation information indicating that the first status information is set to be provided to another communication terminal after transmitting the second permission information. The status acquisition unit that acquires the second status information from the communication control device after the permission receiving unit receives the first permission information, and the second status information acquired by the status acquisition unit after receiving the registration confirmation information indicate A notification unit for notifying the status.

  Moreover, in the 2nd form of this invention, it is the communication method which acquires the status information which shows the status of the user of another communication terminal, and displays it on a communication terminal, Comprising: 1st which shows the status of the user of the said communication terminal When the user of the other communication terminal is requested to receive the status information and the user of the communication terminal approves, the first status information is provided to the other communication terminal by the communication unit, and the user of the other communication terminal Communication with a communication control device that provides the second status information to the communication terminal when the user of the communication terminal is requested to receive the second status information indicating the status of the request and is approved by the user of the other communication terminal. The communication unit to communicate with the communication unit, and the first registration request information for requesting reception of the second status information is transmitted from the communication unit to another communication terminal via the communication control device. In response to the registration request transmission control stage and the first registration request information, the user of another communication terminal approves that the communication terminal receives the second status information, and the communication control apparatus receives the second status information from the communication terminal. A permission reception stage for receiving first permission information indicating that it is set to provide information from another communication terminal, and second registration request information for requesting reception of the first status information from another communication terminal. Registration request reception stage to be received, and second permission information indicating that other communication terminals have been approved to receive the first status information triggered by the reception of the first permission information and the second registration request information. Is transmitted from the communication unit to the other communication terminal via the communication control device, and the first status information is provided to the other communication terminal after transmitting the second permission information. A registration confirmation reception stage for receiving registration confirmation information indicating that it has been set, a status acquisition stage for obtaining second status information from the communication control apparatus after receiving the first permission information in the permission reception stage, and a registration confirmation A notification step of notifying the status indicated by the second status information acquired in the status acquisition step after receiving the information.

  Moreover, in the 3rd form of this invention, it is the communication program for communication terminals which acquires and displays the status information which shows the status of the user of another communication terminal, Comprising: A communication terminal is a user of the said communication terminal. When the user of the other communication terminal is requested to receive the first status information indicating the status and the user of the communication terminal approves, the first status information is provided to the other communication terminal, and the other communication terminal Control device for providing second status information to the communication terminal when the user of the communication terminal is requested to receive the second status information indicating the status of the other user and the user of the other communication terminal approves The communication unit that communicates with the first registration request information that requests reception of the second status information is transmitted from the communication unit to another communication terminal via the communication control device. In response to the request transmission control unit and the first registration request information, the user of another communication terminal approves that the communication terminal receives the second status information, and the communication control device sends the second status information to the communication terminal. Registration to receive first permission information indicating that it has been set to provide from another communication terminal, registration to receive second registration request information to request reception of first status information from another communication terminal Triggered by receiving the request receiving unit, the first permission information, and the second registration request information, the second permission information indicating that another communication terminal is authorized to receive the first status information is sent to the communication unit. The permission transmission control unit that automatically transmits to the other communication terminal via the communication control device, the second permission information is set, and then the first status information is set to be provided to the other communication terminal A registration confirmation receiving unit that receives the registration confirmation information, a status acquisition unit that acquires the second status information from the communication control device after the permission receiving unit receives the first permission information, and a status acquisition after receiving the registration confirmation information Function as a notification unit that notifies the status indicated by the second status information acquired by the unit.

  The above summary of the invention does not enumerate all the necessary features of the present invention, and sub-combinations of these feature groups can also be the invention.

  According to the present invention, only one of the one communication terminal 10 and the other communication terminal 10 is not allowed to refer to the presence information of the other communication terminal 10, and the one communication terminal 10 is not allowed to access the other communication terminal. When the ten presence information can be referred to, the other communication terminals 10 can be controlled to refer to the presence information of one communication terminal 10.

  Hereinafter, the present invention will be described through embodiments of the invention. However, the following embodiments do not limit the claimed invention, and all combinations of features described in the embodiments are included. It is not necessarily essential for the solution of the invention.

  1, 2 and 3 show an outline of the operation of the communication terminal 10 according to an embodiment of the present invention. The communication terminal 10 acquires and displays status information indicating the status of the user of the other communication terminal 10. Here, presence information indicating the current state of the user of the communication terminal 10 and the current setting status of the communication terminal 10 is an example of status information. The communication terminal 10 acquires status information of other communication terminals 10 from the presence server 20 via the network 40. Further, the communication terminal 10 causes the presence server 20 to record its own status information via the network 40.

  The communication terminal 10 according to the present embodiment does not allow only one of the one communication terminal 10 and the other communication terminal 10 to refer to the presence information of the other communication terminal 10, and the one communication terminal 10 When the presence information of another communication terminal 10 can be referred to, the purpose is to control the other communication terminal 10 to refer to the presence information of one communication terminal 10.

  The communication terminal 10 includes a contact list for registering terminal identification information for identifying other communication terminals 10 that are permitted to provide their own presence information. The presence server 20 is a resource for registering terminal identification information for identifying other communication terminals 10 that can refer to presence information of one communication terminal 10 in association with terminal identification information for identifying one communication terminal 10. Provide a list. The other communication terminal 10 identified by the communication terminal identification information registered in the contact list of the one communication terminal 10 and identified by the terminal identification information registered in the resource list is The presence information of one communication terminal 10 can be received.

  First, the communication terminal 10 (A) receives the provision of presence information of the communication terminal 10 (B), via the network 40 and the presence server 20, to the contact list of the communication terminal 10 (B). A registration request for requesting registration of the terminal identification information is transmitted (S100). The presence server 20 receives the registration request (S102), and transmits the registration request to the communication terminal 10 (B) (S104, S106). When receiving the registration request, the communication terminal 10 (B) notifies the user of the communication terminal 10 (B) that the registration request has been received.

  Referring to FIG. 2, the communication terminal 10 (B) notifies the user of the communication terminal 10 (B) that the registration request has been received from the communication terminal 10 (A) on the standby screen (S200). For example, the communication terminal 10 (B) displays the number of registration requests received in the “Presence Notification” field. When the user of the communication terminal 10 (B) selects “presence notification”, the communication terminal 10 (B) causes the user to select whether or not to accept the registration request (S210). For example, the communication terminal 10 (B) displays “Registration request from Mr. A. Do you want to register?” On the display unit 162 and prompts the user to select whether or not to register.

  When the user selects to accept the registration request from the communication terminal 10 (A), the communication terminal 10 (B) transmits approval information indicating acceptance of registration to the presence server 20 (S108). In addition, the communication terminal 10 (B) automatically transmits to the presence server 20 a registration request that requests registration of the terminal identification information of the communication terminal 10 (B) in the contact list of the communication terminal 10 (A). . When the presence server 20 receives the approval information from the communication terminal 10 (B), the presence server 20 registers the terminal identification information of the communication terminal 10 (A) in the resource list of the communication terminal 10 (B). Then, the presence server 20 includes information indicating that the terminal identification information of the communication terminal 10 (A) is registered in the resource list of the communication terminal 10 (B), and the communication terminal 10 in the contact list of the communication terminal 10 (A). A registration request for requesting registration of the terminal identification information of (B) is transmitted to the communication terminal 10 (A).

  As a result, the communication terminal 10 (A) can refer to the presence information of the communication terminal 10 (B). However, the terminal identification information of the communication terminal 10 (B) is not yet registered in the contact list of the communication terminal 10 (A). That is, the communication terminal 10 (B) is not in a state where the presence information of the communication terminal 10 (A) can be referred to. Therefore, even when the communication terminal 10 (A) acquires the presence information of the communication terminal 10 (B) from the presence server 20, the communication terminal 10 (A) displays the acquired presence information of the communication terminal 10 (B) on the display unit 162. First, the presence information is displayed with a mask. Specifically, the user of the communication terminal 10 (A) displays the information in such a manner that the presence information of the communication terminal 10 (B) cannot be recognized. For example, the communication terminal 10 (A) displays the presence information of the communication terminal 10 (B) in a gray-out state. Further, the communication terminal 10 (A) may not display the presence information of the communication terminal 10 (B) on the display unit 162.

  Subsequently, the communication terminal 10 (A) receives information indicating that the terminal identification information of the communication terminal 10 (A) is registered in the contact list of the communication terminal 10 (B), and the contact list of the communication terminal 10 (A). When the registration request for requesting registration of the terminal identification information of the communication terminal 10 (B) is received, the terminal identification information of the communication terminal 10 (B) is automatically added to the contact list of the communication terminal 10 (A). Information that approves registration in the presence server 20 is transmitted. The presence server 20 receives information that approves registration of the terminal identification information of the communication terminal 10 (B) in the contact list of the communication terminal 10 (A), and adds the communication terminal to the resource list of the communication terminal 10 (A). The terminal identification information of 10 (B) is automatically registered.

  The presence server 20 transmits information indicating that the terminal identification information of the communication terminal 10 (B) is registered in the contact list of the communication terminal 10 (A) to the communication terminal 10 (B). When the communication terminal 10 (B) receives information indicating that the terminal identification information of the communication terminal 10 (B) is registered in the contact list of the communication terminal 10 (A), the communication terminal 10 (B) sends an ACK message to the communication terminal 10 ( To A). As a result, the communication terminal 10 (B) can refer to the presence information of the communication terminal 10 (A). For example, the communication terminal 10 (B) notifies the user that “registration is permitted. Presence information is shared with Mr. A” (S220). Then, the communication terminal 10 (B) displays the presence information of the communication terminal 10 (A) on the display unit 162 when the user selects OK.

  On the other hand, the communication terminal 10 (A) that has received the ACK message from the communication terminal 10 (B) removes the mask from the presence information that has been displayed with the mask, and displays the presence information. Thereby, the communication terminal 10 (A) can refer to the presence information of the communication terminal 10 (B), and the communication terminal 10 (B) cannot refer to the presence information of the communication terminal 10 (A). The communication terminal 10 (A) does not display the presence information of the communication terminal 10 (B), and after the communication terminal 10 (B) can refer to the presence information of the communication terminal 10 (A), communication is performed. The presence information of the communication terminal 10 (B) can be referred to at the terminal 10 (A).

  Reference is also made to FIG. FIG. 3 shows a case where presence information of the communication terminal 10 (E) (not shown) is deleted in the communication terminal 10 (A), for example. When the user selects to delete the presence information of the communication terminal 10 (E) in the communication terminal 10 (A) (S300, S310), the communication terminal 10 (A) is selected from the contact list. Is transmitted to the presence server 20 for requesting deletion of the terminal identification information of the communication terminal 10 (A) from the contact list of the communication terminal 10 (E).

  When the presence server 20 receives the information, the presence server 20 deletes the terminal identification information of the communication terminal 10 (E) from the resource list of the communication terminal 10 (A), and also deletes the communication terminal 10 (E) from the resource list. The terminal identification information of 10 (A) is deleted. As a result, the communication terminal 10 (A) can no longer refer to the presence information of the communication terminal 10 (E) (S320, S330), and the communication terminal 10 (E) also automatically communicates with the communication terminal 10 (A). ) Cannot be referred to. Therefore, according to the communication terminal 10 according to the present embodiment, when it becomes impossible to refer to the presence information of another communication terminal 10 in one communication terminal 10, the other communication terminal 10 automatically Since the presence information of the communication terminal 10 can not be referred to, it is possible to prevent the presence information from being inconsistent among the plurality of communication terminals 10.

  FIG. 4 shows an example of a functional configuration of the communication terminal 10 according to the present embodiment. The communication terminal 10 is a communication terminal that acquires and displays status information indicating the status of a user of another communication terminal 10, and is specifically a mobile phone terminal. For example, the communication terminal 10 is a mobile phone terminal that receives presence information of another communication terminal 10 via the presence server 20, and may be a mobile phone terminal that communicates using a half-duplex PTT communication method. . The communication terminal 10 may be a notebook personal computer having a communication function, a PDA, a portable information terminal such as a game machine, and a desktop PC.

  Then, the communication terminal 10 receives the first status information indicating the status of the user of the communication terminal 10 from the other communication terminal 10 when the user of the communication terminal 10 approves the first status information. Information is provided to other communication terminals 10. In addition, when the communication terminal 10 is requested by the user of the communication terminal 10 to receive the second status information indicating the status of the user of the other communication terminal 10 and the user of the other communication terminal 10 approves, 2 Communicate with a communication control device that provides status information to the communication terminal 10. The presence server 20 is an example of a communication control device.

  The communication terminal 10 includes a data transmission / reception unit 100, a transmission unit 110, a reception unit 120, a notification control unit 130, a request input unit 140, a cancellation request selection unit 150, and a notification unit 160. The transmission unit 110 includes a registration request transmission unit 111, a permission transmission unit 113, a cancellation request transmission unit 115, a cancellation transmission unit 117, and a status transmission unit 119. The receiving unit 120 includes a permission receiving unit 121, a registration request receiving unit 123, a registration confirmation receiving unit 124, a status acquisition unit 125, a cancellation receiving unit 127, and a cancellation request receiving unit 129. Further, the notification unit 160 includes a display unit 162 and an audio output unit 164.

  The request input unit 140 causes the user to input first registration request information that requests reception of second status information of another communication terminal 10. The request input unit 140 supplies the first registration request information to the registration request transmission unit 111 when the user inputs the first registration request information. The registration request transmission unit 111 transmits first registration request information for requesting reception of the second status information to another communication terminal 10 via the communication control device. The registration request transmission unit 111 transmits the first registration request information from the data transmission / reception unit 100. The status transmission unit 119 transmits the status information of the communication terminal 10 to the communication control device via the data transmission / reception unit 100 to be recorded.

  In response to the first registration request information transmitted from the registration request transmitting unit 111, the permission receiving unit 121 is approved by the user of the other communication terminal 10 that the communication terminal 10 receives the second status information, and the communication control device Receives the first permission information indicating that is set to provide the second status information to the communication terminal 10 from the other communication terminal 10 via the data transmission / reception unit 100. Specifically, when a user of another communication terminal 10 approves that the communication terminal 10 acquires the second status information, the communication control device identifies the communication terminal 10 in the resource list of the other communication terminal 10. Register terminal identification information. Then, after registering terminal identification information for identifying the communication terminal 10 in the resource list of the other communication terminal 10, the communication control apparatus transmits the first permission information to the permission receiving unit 121. The permission receiving unit 121 supplies the first permission information received from the communication control device to the permission transmitting unit 113.

  The registration request receiving unit 123 receives the second registration request information requesting reception of the first status information automatically transmitted from the other communication terminal 10 via the data transmitting / receiving unit 100. The registration request reception unit 123 supplies the second registration request information to the permission transmission unit 113. The permission transmitter 113 receives second permission information indicating that another communication terminal 10 has been approved to receive the first status information, triggered by the reception of the first permission information and the second registration request information. The data transmitting / receiving unit 100 automatically transmits the data to another communication terminal 10 via the communication control device. The registration confirmation receiving unit 124 receives registration confirmation information indicating that the first status information is set to be provided to another communication terminal 10 after the permission transmitting unit 113 transmits the second permission information. The registration confirmation receiving unit 124 supplies registration confirmation information to the status acquisition unit 125. The status acquisition unit 125 acquires the second status information from the communication control device after the permission receiving unit 121 receives the first permission information. The status acquisition unit 125 supplies the acquired second status information to the notification control unit 130.

  The notification control unit 130 notifies the user of the communication terminal 10 of the second status information acquired by the status acquisition unit 125 from the notification unit 160. The notification unit 160 notifies the status indicated by the second status information acquired by the status acquisition unit 125 after the registration confirmation reception unit 124 receives the registration confirmation information. Specifically, in the notification control unit 130, the status acquisition unit 125 receives the second permission information after the permission reception unit 121 receives the first permission information and before the registration confirmation reception unit 124 receives the registration confirmation information. When the status information is acquired, the notification unit 160 is prohibited from reporting the status indicated by the second status information acquired by the status acquisition unit 125. For example, the notification control unit 130 prohibits the notification of the status indicated by the second status information by causing the display unit 162 to gray out the status indicated by the second status information. Further, the notification control unit 130 may prohibit the notification of the status indicated by the second status information by causing the display unit 162 to display a predetermined image superimposed on the status indicated by the second status information. Good.

  The cancellation request selection unit 150 causes the user of the communication terminal 10 to select whether or not to cancel the setting for providing the first status information to the other communication terminal 10 set in the communication control device. The cancellation request transmission unit 115 indicates the first cancellation request information indicating that the cancellation of the setting that provides the first status information to the other communication terminal 10 is requested when cancellation of the setting is selected by the user. Is transmitted from the data transmitting / receiving unit 100 to another communication terminal 10 via the communication control device. And the cancellation | release receiving part 127 is the 1st cancellation | release which shows that the communication terminal 10 canceled provision of 1st status information with respect to 1st cancellation request information by the user of the other communication terminal 10 approved. Information is received from another communication terminal 10 via the data transmitter / receiver 100. Subsequently, the cancellation request receiving unit 129 receives from the other communication terminal 10 second resolution request information indicating that the communication terminal 10 is requested to cancel the setting for providing the second status information. The cancellation request receiving unit 129 supplies the second cancellation request information to the registration confirmation receiving unit 124.

  In such a case, the registration confirmation receiving unit 124 has canceled the setting in which the communication control apparatus provides the second status information to the communication terminal 10 in accordance with the second cancellation request information received from the registration confirmation receiving unit 124. And the cancellation confirmation information which shows having canceled the setting which provides 1st status information to the other communication terminal 10 is further received. Then, the registration confirmation receiving unit 124 supplies the cancellation confirmation information to the notification control unit 130. The notification control unit 130 controls the notification unit 160 to notify the other communication terminal 10 that the setting for providing the first status information has been canceled when the cancellation confirmation information is received. Further, the notification control unit 130 acquires the status after receiving the information indicating that the first cancellation request information has been transmitted from the cancellation request transmitting unit 115 and before receiving the cancellation confirmation information from the registration confirmation receiving unit 124. When the unit 125 acquires the second status information, the notification unit 160 is prohibited from reporting the status indicated by the second status information acquired by the status acquisition unit 125.

  Further, the notification unit 160 may notify the other communication terminal 10 that the setting for providing the first status information has been canceled when the first cancellation request information is transmitted. Specifically, when the first resolution request information is transmitted from the resolution request transmission unit 115, the communication control apparatus that has received the first resolution request information transmits the terminal of another communication terminal 10 from the resource list of the communication terminal 10. In addition to deleting the identification information, the terminal identification information of the communication terminal 10 is deleted from the resource list of the other communication terminal 10. On the other hand, the notification control unit 130 receives information indicating that the first cancellation request information has been transmitted from the cancellation request transmitting unit 115, and the notification unit 160 is configured to provide the first status information to the other communication terminals 10. Notify that has been resolved. That is, the notification control unit 130 deletes the terminal identification information of the other communication terminal 10 from the resource list of the communication terminal 10 in the communication control apparatus, and also identifies the terminal identification of the communication terminal 10 from the resource list of the other communication terminal 10. Even when the confirmation information indicating that the information has been deleted is not received, the notification unit 160 is notified that the setting for providing the first status information to the other communication terminals 10 has been canceled.

  In such a case, when the status acquisition unit 125 acquires the second status information after the cancellation request transmission unit 115 transmits the first cancellation request information, the notification control unit 130 acquires the second status acquired by the status acquisition unit 125. It is prohibited for the notification unit 160 to notify the status indicated by the information. For example, the notification control unit 130 masks the status indicated by the second status information and causes the display unit 162 to display the mask. Thereby, in the communication control apparatus, before the terminal identification information of the communication terminal 10 is deleted from the resource list of the other communication terminal 10, that is, the communication terminal 10 can refer to the status information of the other communication terminal 10. However, it is possible to prevent the communication terminal 10 from referring to the status information of the other communication terminal 10.

  Further, the cancellation request receiving unit 129 receives second cancellation request information indicating that the communication terminal 10 is requested to cancel the setting for providing the second status information from another communication terminal 10 via the communication control device. . Then, the cancellation request selection unit 150 determines whether to cancel the setting for providing the second status information to the communication terminal 10 with respect to the second cancellation request information received by the cancellation request reception unit 129. Let the user choose. Subsequently, when the cancellation request selection unit 150 selects cancellation of the setting, the cancellation transmission unit 117 cancels the setting of providing the second status information to the communication terminal 10. 2nd cancellation information which shows having been approved by the user is transmitted via a communication control apparatus.

  Subsequently, when the cancellation request transmission unit 115 is selected to cancel the setting, the cancellation request transmission unit 115 communicates the first cancellation request information for requesting cancellation of the setting for providing the first status information to the other communication terminal 10. It is automatically transmitted to another communication terminal 10 via the control device. Then, in response to the first cancellation request information, the registration confirmation receiving unit 124 sets the communication control apparatus to cancel the provision of the first status information to the communication terminal 10, and sends it to the other communication terminal 10. The cancellation confirmation information indicating that the second status information is set to be canceled is received. Then, when receiving the cancellation confirmation information, the notification unit 160 notifies the other communication terminals 10 that the setting has been made to cancel the provision of the first status information.

  In addition, the display part 162 which the notification part 160 has notifies the status of the other communication terminal 10 to a user by displaying the status which 2nd status information shows. In addition, the display unit 162 may display that other communication terminals 10 are set to cancel provision of the first status information. Furthermore, the audio output unit 164 may output the audio in association with the setting to cancel the provision of the first status information to the other communication terminals 10 in advance.

  According to the communication terminal 10 according to the present embodiment, when the communication terminal 10 requests the status information of the other communication terminal 10, the communication terminal 10 can communicate even if the other communication terminal 10 accepts the request. Until both the terminal 10 and the other communication terminal 10 can refer to each other's status information, the display of the status to be automatically displayed on the communication terminal 10 can be prohibited. Thereby, although one communication terminal 10 can refer to the status information of the other communication terminal 10, it is possible to prevent the other communication terminal 10 from referring to the status information of the one communication terminal 10.

  FIG. 5 shows an overview of the flow of processing in the communication terminal 10 according to the present embodiment. First, the registration request transmission unit 111 of the communication terminal 10 (A) designates the communication terminal 10 (B) and sends a registration request (for example, first registration request information) for requesting registration to the contact list to the communication terminal. 10 (B) (S500). When the communication terminal 10 (B) approves the request indicated by the registration request (S505), the permission receiving unit 121 of the communication terminal 10 (A) sends the communication terminal 10 (A) to the contact list of the communication terminal 10 (B). (S510) is notified of information (for example, first permission information) indicating that the registration has been completed.

  In this state, the communication terminal 10 (A) can refer to the presence information of the communication terminal 10 (B), but the communication terminal 10 (B) is not registered in the contact list of the communication terminal 10 (A). Therefore, even when the presence information of the communication terminal 10 (B) is acquired from the communication control device, the presence information of the communication terminal 10 (B) is displayed as a mask.

  Subsequently, the communication terminal 10 (B) sends a registration request (for example, second registration request information) for requesting registration of the communication terminal 10 (B) to the contact list of the communication terminal 10 (A), and the communication terminal 10 (A ) Is automatically transmitted (S515). When receiving the registration request, the communication terminal 10 (A) automatically approves the registration request. And the communication terminal 10 (A) transmits the approval information (for example, 2nd permission information) which shows having approved to the communication terminal 10 (B) (S520). When the communication terminal 10 (B) receives the approval information, the communication terminal 10 (B) notifies the user that registration of the communication terminal 10 (B) is completed in the contact list of the communication terminal 10 (A) (S525).

  Then, the communication terminal 10 (B) transmits an ACK message (for example, registration confirmation information) indicating that the approval information has been received to the communication terminal 10 (A) (S530). The registration confirmation receiving unit 124 of the communication terminal 10 (A) receives the ACK message. After the registration confirmation receiving unit 124 receives the ACK message, the notification control unit 130 of the communication terminal 10 (A) displays the presence information of the communication terminal 10 (B) on the display unit 162 so that the user can recognize it (S540). ).

  Thereby, the communication terminal 10 (A) can display the presence information displayed as a mask so that the user can recognize it, and the operation of the presence information in the communication terminal 10 (A) also in the communication terminal 10 (B). The presence information of the communication terminal 10 (A) can be displayed in a recognizable manner in synchronization with the user.

  FIG. 6 shows an outline of the flow of processing in the communication terminal 10 according to the present embodiment. First, the cancellation request transmission unit 115 of the communication terminal 10 (A) transmits a deletion request (for example, first cancellation request information) to delete the communication terminal 10 (B) from the resource list of the presence server 20 (S600). ). When the communication terminal 10 (B) approves the deletion request (S605), the communication terminal 10 (B) communicates approval information (for example, first cancellation information) indicating that the deletion request has been approved. A deletion request (for example, second cancellation request information) requesting to delete the communication terminal 10 (A) from the resource list of the presence server 20 is automatically transmitted to the terminal 10 (A). A) is transmitted (S610). The presence server 20 deletes the communication terminal 10 (A) from the resource list of the communication terminal 10 (B) and deletes the communication terminal 10 (B) from the resource list of the communication terminal 10 (A). Then, the communication terminal 10 (A) automatically deletes the communication terminal 10 (B) from the contact list, and the communication terminal 10 (A) completes the deletion of the communication terminal 10 (B) from the contact list. (S615).

  FIG. 7 shows an example of the processing flow in the communication terminal 10 according to the present embodiment. The registration request transmission unit 111 included in the communication terminal 10 (A), when the user designates the communication terminal 10 (B) via the request input unit 140 and performs a registration operation on the contact list, the communication terminal 10 (A The registration request message for requesting registration of the communication terminal 10 (B) in the resource list provided in the presence server 20 (A) is transmitted to the presence server 20 (A) that manages the presence information (S700). After receiving the XCAP PUT-200 OK (AUID = resource-lists Add B), the presence server 20 (A) provisionally registers the communication terminal 10 (B) in the resource list. Then, a registration request message from the communication terminal 10 (A) is transmitted to the presence server 20 (B) that manages the presence information of the communication terminal 10 (B) (S702).

  The presence server 20 (B) notifies the communication terminal 10 (B) that there is a registration request from the communication terminal 10 (A) (S704), and transmits NOTIFY-200OK to the presence server 20 (A) ( S706). Then, the presence server 20 (A) transmits NOTIFY-200OK to the communication terminal 10 (A) (S708). When the communication terminal 10 (B) receives the registration request transmitted from the presence server 20 (B) by the registration request transmission unit 111 included in the communication terminal 10 (A), the registration from the communication terminal 10 (A) is displayed on the display unit 162. Displays that there is a request. When the user of the communication terminal 10 (B) accepts the registration request (S712), a permission message indicating approval is transmitted from the communication terminal 10 (B) to the presence server 20 (B) (S710).

  The presence server 20 (B) transmits a permission message indicating that the user of the communication terminal 10 (B) has approved the request from the communication terminal 10 (A) to the presence server 20 (A) (S714). . The presence server 20 (A) transmits the permission message to the communication terminal 10 (A) (S716). Also, the presence server 20 (B) transmits NOTIFY-200OK to the communication terminal 10 (B) (S718).

  When the communication terminal 10 (A) receives the permission message from the presence server 20 (A), the communication terminal 10 (B) can refer to the presence information of the communication terminal 10 (B). At this stage, the communication terminal 10 (B) The presence information of the communication terminal 10 (A) cannot be referred to. Therefore, the notification control unit 130 included in the communication terminal 10 (A) prohibits the display unit 162 from displaying the presence information of the communication terminal 10 (B) so that the user can recognize the information.

  On the other hand, after transmitting a permission message to the presence server 20 (B), the communication terminal 10 (B) automatically sends a message requesting the presence information of the communication terminal 10 (A) to the presence server 20 (B). Transmit (S720). Thereby, the communication terminal 10 (A) is registered in the contact list of the communication terminal 10 (B). Then, the presence server 20 (B) transmits a SUBSCRIBE-202 Accepted message to the presence server 20 (A) (S722). Subsequently, the presence server 20 (A) transmits NOTIFY-200OK to the communication terminal 10 (A) (S724).

  Then, the presence server 20 (A) transmits NOTIFY-200OK to the presence server 20 (B) (S726). The presence server 20 (B) transmits NOTIFY-200OK to the communication terminal 10 (B) (S732). The presence server 20 (A) notifies the communication terminal 10 (A) of a message requesting the provision of presence information of the communication terminal 10 (A) from the communication terminal 10 (B). Subsequently, the communication terminal 10 (A) stores that the registration of the communication terminal 10 (B) in the contact list is completed, and the presence information of the communication terminal 10 (A) is transmitted to the communication terminal 10 (B). Is sent to the communication terminal 10 (B) automatically (S730).

  When NOTIFY-200OK is transmitted from the presence server 20 (A) to the communication terminal 10 (B) via the presence server 20 (B) (S734, S736), the communication terminal 10 (B) also receives the communication terminal 10 (B). It becomes possible to refer to the presence information of A). When NOTIFY-200OK is transmitted from the presence server 20 (A) to the communication terminal 10 (A) (S738), the notification control unit 130 included in the communication terminal 10 (A) determines the presence of the communication terminal 10 (B). The information is displayed on the display unit 162 so that the user can recognize the information.

  FIG. 8 shows an example of the processing flow in the communication terminal 10 according to the present embodiment. First, the cancellation request selection unit 150 of the communication terminal 10 (A) selects the communication terminal 10 (B) registered in the contact list and executes a deletion operation in accordance with a user instruction. Specifically, the cancellation request transmission unit 115 included in the communication terminal 10 (A) uses the communication terminal 10 (B) selected by the cancellation request selection unit 150 to manage the presence information of the communication terminal 10 (A). A deletion request for requesting deletion from the resource list of 20 (A) is transmitted (S800). The presence server 20 (A) transmits a deletion request from the communication terminal 10 (A) to the presence server 20 (B) that manages the presence information of the communication terminal 10 (B) (S802). Then, the presence server 20 (B) transmits a delete request from the communication terminal 10 (A) as NOTIFY-200OK to the communication terminal 10 (B) (S804).

  Subsequently, the communication terminal 10 (B) notifies the user that the deletion request from the presence server 20 (B) has been received. Then, when the user of the communication terminal 10 (B) approves the deletion request, the communication terminal 10 (B) makes a communication terminal 10 (A) registered in the contact list with respect to the presence server 20 (B). ) Is transmitted to request deletion (S806). When the presence server 20 (B) receives the deletion request from the communication terminal 10 (B), the presence server 20 (B) deletes the communication terminal 10 (A) from the resource list of the presence server 20 (B).

  Then, NOTIFY-200OK is transmitted from the presence server 20 (B) to the presence server 20 (A) (S808). Subsequently, NOTIFY-200OK is transmitted from the presence server 20 (A) to the communication terminal 10 (A) (S810), so that the user of the communication terminal 10 (A) contacts the user of the communication terminal 10 (B). It is recognized that the communication terminal 10 (A) has been deleted from the list.

  FIG. 9 shows an overview of the flow of processing in the communication terminal 10 according to the present embodiment. First, the registration request transmission unit 111 of the communication terminal 10 (A) designates the communication terminal 10 (B) and sends a registration request (for example, first registration request information) for requesting registration to the contact list to the communication terminal. 10 (B) (S900). Next, a case where the communication terminal 10 (B) approves the request indicated by the registration request will be described. In such a case, the communication terminal 10 (B) receives information (for example, first permission information) indicating that the registration of the communication terminal 10 (A) in the contact list is completed in accordance with the approval of the user. A registration request (for example, second registration request information) requesting to register the communication terminal 10 (B) in the contact list of the communication terminal 10 (A) is transmitted to the permission receiving unit 121 of 10 (A). It automatically transmits to the communication terminal 10 (A) (S905, S910).

  In this state, the communication terminal 10 (A) can refer to the presence information of the communication terminal 10 (B), but the communication terminal 10 (B) is registered in the contact list of the communication terminal 10 (A). Absent. Therefore, even when the status acquisition unit 125 of the communication terminal 10 (A) acquires the presence information of the communication terminal 10 (B) from the communication control device, the notification control unit 130 does not have the presence of the communication terminal 10 (B). The information is displayed as a mask on the display unit 162.

  When the registration request receiving unit 123 receives a registration request from the communication terminal 10 (B), the permission transmitting unit 113 of the communication terminal 10 (A) automatically approves the registration request. That is, the permission transmitting unit 113 of the communication terminal 10 (A) transmits approval information (for example, second permission information) indicating approval to the communication terminal 10 (B) (S915). When receiving the approval information, the communication terminal 10 (B) notifies the user that registration of the communication terminal 10 (B) is completed in the contact list of the communication terminal 10 (A) (S920).

  Then, the communication terminal 10 (B) transmits an ACK message (for example, registration confirmation information) indicating that the approval information has been received to the communication terminal 10 (A) (S925). The registration confirmation receiving unit 124 of the communication terminal 10 (A) receives the ACK message. After the registration confirmation receiving unit 124 receives the ACK message, the notification control unit 130 of the communication terminal 10 (A) displays the presence information of the communication terminal 10 (B) on the display unit 162 so that the user can recognize it (S935). ). On the other hand, after transmitting the ACK message, the communication terminal 10 (B) displays the presence information of the communication terminal 10 (A) on the display unit 162 so that the user can recognize it (S930).

  FIG. 10 shows an outline of the processing flow in the communication terminal 10 according to the present embodiment. First, the cancellation request transmission unit 115 of the communication terminal 10 (A) transmits a deletion request (for example, first cancellation request information) to delete the communication terminal 10 (B) from the resource list (S1000). When the presence server 20 receives the deletion request, the presence server 20 deletes the communication terminal 10 (B) from the resource list of the communication terminal 10 (A), and also deletes the communication terminal 10 (A) from the resource list of the communication terminal 10 (B). ) Is deleted. Then, the communication terminal 10 (B) is notified that the presence information has been deleted (S1005). Thereby, when one communication terminal 10 deletes the presence information, reference to the presence information of the one communication terminal 10 can be prohibited in other communication terminals.

  FIG. 11 shows an example of the flow of processing in the communication terminal 10 according to the present embodiment. The registration request transmission unit 111 included in the communication terminal 10 (A) is used when the user designates the communication terminal 10 (B) via the request input unit 140 and performs a registration operation on the contact list (S1100). A registration request message for requesting registration of the communication terminal 10 (B) in the resource list of the presence server 20 (A) is transmitted to the presence server 20 (A) that manages the presence information of 10 (A) (S1105). ). After receiving the XCAP PUT-200 OK (AUID = resource-lists Add B), the presence server 20 (A) provisionally registers the communication terminal 10 (B) in the resource list. The presence server 20 (A) transmits a registration request message from the communication terminal 10 (A) to the presence server 20 (B) that manages the presence information of the communication terminal 10 (B) (S1110).

  The presence server 20 (B) transmits a registration request as NOTIFY-200 OK (state = pending) from the communication terminal 10 (A) to the communication terminal 10 (B) (S 1115). Also, NOTIFY-200OK is transmitted to the presence server 20 (A) (S1125). Then, the presence server 20 (A) transmits NOTIFY-200OK to the communication terminal 10 (A) (S1130). The communication terminal 10 (B) notifies the user that the registration request has been received from the presence server 20 (B). When the user of the communication terminal 10 (B) approves the registration request (S1120), the communication terminal 10 (B) transmits an XCAP PUT-200OK message to the presence server 20 (B) (S1135). As a result, the communication terminal 10 (A) is registered in the contact list of the communication terminal 10 (B), and the communication terminal 10 (A) is registered in the resource list of the presence server 20 (B).

  Subsequently, NOTIFY-200OK is transmitted from the presence server 20 (B) to the presence server 20 (A) (S1140). When the presence server 20 (A) receives NOTIFY-200OK from the presence server 20 (B), the presence server 20 (A) officially registers the communication terminal 10 (B) temporarily registered in the resource list. The presence server 20 (B) further transmits SUBSCRIBE-200OK to the presence server 20 (A) (S1155). Then, NOTIFY-200OK is transmitted from the presence server 20 (A) to the communication terminal 10 (A) (S1145). The notification control unit 130 of the communication terminal 10 (A) causes the notification unit 160 to notify that registration has been completed (S1150).

  On the other hand, the presence server 20 (A) transmits NOTIFY-200OK to the communication terminal 10 (A) (S1170) and transmits it to the presence server 20 (B) (S1160). The presence server 20 (B) transmits NOTIFY-200OK to the communication terminal 10 (B) (S1165). And registration of communication terminal 10 (A) is completed inside communication terminal 10 (B) (S1175).

  FIG. 12 shows an example of the flow of processing in the communication terminal 10 according to the present embodiment. First, the cancellation request selection unit 150 of the communication terminal 10 (A) selects the communication terminal 10 (B) registered in the contact list (PCL) and executes a deletion operation (S1200). The cancellation request transmission unit 115 of the communication terminal 10 (A) is selected from the resource list provided in the presence server 20 (A) that manages the presence information of the communication terminal 10 (A) according to the result selected by the cancellation request selection unit 150. A deletion request for requesting deletion of the communication terminal 10 (B) is transmitted (S1205). The presence server 20 (A) transmits a deletion request from the communication terminal 10 (A) to the presence server 20 (B) that manages the presence information of the communication terminal 10 (B) (S1210). Then, the presence server 20 (B) transmits a deletion request from the communication terminal 10 (A) as NOTIFY-200OK to the communication terminal 10 (B) (S1215).

  When receiving a deletion request from the presence server 20 (B), the communication terminal 10 (B) executes a deletion process (S1220). Specifically, the notification control unit 130 of the communication terminal 10 (B) causes the notification unit 160 to notify the user that a deletion request from the communication terminal 10 (A) has been received. Then, the communication terminal 10 (B) transmits XCAP PUT-200 OK (AUID = resource-lists Delete A) to the presence server 20 (B) (S1225), and communicates from the resource list of the presence server 20 (B). The terminal 10 (A) is deleted and registration cancellation is completed (S1230).

  On the other hand, after transmitting a deletion request for requesting deletion of the communication terminal 10 (B) from the resource list (S1205), the communication terminal 10 (A) notifies the user that the deletion has been completed (S1235). Then, the communication terminal 10 (A) transmits an XCAP PUT-200 OK (AUID = pres-rules B's “sub-handling” == “block”)) message to the presence server 20 (A), and the presence server 20 (A). The communication terminal 10 (B) is deleted from the resource list of 20 (A).

  FIG. 13 shows an example of the flow of processing in the communication terminal 10 according to the present embodiment. In the communication terminal 10 (A), when the acquisition of presence information of the communication terminal 10 (B) is temporarily suspended, the communication terminal 10 (A) transmits a De-REGISTER message to the presence server 20 (A) ( S1300). Then, the presence server 20 (A) transmits a NOTIFY-200OK message to the presence server 20 (B) (S1305). Subsequently, when the presence server 20 (B) transmits NOTIFY-200OK to the communication terminal 10 (B) (S1310), the communication terminal 10 (B) stops providing the presence information. Can be recognized. For example, the communication terminal 10 (B) causes the display unit 162 to display “stopped” in association with the communication terminal 10 (A).

  Thereby, when the communication terminal 10 (A) temporarily interrupts the exchange of presence information with the communication terminal 10 (B), the network availability of the communication terminal 10 (A) is stopped in the communication terminal 10 (B). Can be displayed.

  FIG. 14 shows an example of the flow of processing in the communication terminal 10 according to the present embodiment. In the case where the communication connection between the communication terminal 10 (A) and the communication terminal 10 (B) continues, the communication terminal 10 (A) transmits information indicating that the service availability is stopped to the communication terminal 10 (B). (S1400, S1405, and S1410). The communication terminal 10 (A) still has a mode in which the presence information of the communication terminal 10 (B) can be referred to, but the communication terminal 10 (A) has requested to stop service availability. In 10 (A), the presence information of the communication terminal 10 (B) is masked and displayed.

  FIG. 15 shows an example of a hardware configuration of the communication terminal 10 according to the present embodiment. The communication terminal 10 according to the present embodiment includes a CPU peripheral unit including a CPU 1505, a RAM 1520, a graphic controller 1575, and a display device 1580 connected to each other by a host controller 1582, and an input / output controller 1584 to the host controller 1582. Input / output unit having communication interface 1530, hard disk drive 1540, and CD-ROM drive 1560 connected, and legacy input / output having ROM 1510, flexible disk drive 1550, and input / output chip 1570 connected to input / output controller 1584 A part.

  The host controller 1582 connects the RAM 1520 to the CPU 1505 and the graphic controller 1575 that access the RAM 1520 at a high transfer rate. The CPU 1505 operates based on programs stored in the ROM 1510 and the RAM 1520 to control each unit. The graphic controller 1575 acquires image data generated by the CPU 1505 or the like on a frame buffer provided in the RAM 1520 and displays the image data on the display device 1580. Alternatively, the graphic controller 1575 may include a frame buffer that stores image data generated by the CPU 1505 or the like.

  The input / output controller 1584 connects the host controller 1582 to the communication interface 1530, the hard disk drive 1540, and the CD-ROM drive 1560, which are relatively high-speed input / output devices. The communication interface 1530 communicates with other devices via a network. The hard disk drive 1540 stores programs and data used by the CPU 1505 in the communication terminal 10. The CD-ROM drive 1560 reads a program or data from the CD-ROM 1595 and provides it to the hard disk drive 1540 via the RAM 1520.

  The input / output controller 1584 is connected to the ROM 1510, the flexible disk drive 1550, and the relatively low-speed input / output device of the input / output chip 1570. The ROM 1510 stores a boot program executed when the communication terminal 10 is started, a program depending on the hardware of the communication terminal 10, and the like. The flexible disk drive 1550 reads a program or data from the flexible disk 1590 and provides it to the hard disk drive 1540 via the RAM 1520. The input / output chip 1570 connects various input / output devices via a flexible disk drive 1550 such as a parallel port, a serial port, a keyboard port, and a mouse port.

  A communication program provided to the hard disk drive 1540 via the RAM 1520 is stored in a recording medium such as the flexible disk 1590, the CD-ROM 1595, or an IC card and provided by the user. The communication program is read from the recording medium, installed in the hard disk drive 1540 in the communication terminal 10 via the RAM 1520, and executed by the CPU 1505. The communication program installed and executed in the communication terminal 10 works on the CPU 1505 or the like to make the communication terminal 10 the data transmission / reception unit 100, the transmission unit 110, the reception unit 120, and the notification control unit 130 described with reference to FIGS. , Function as a request input unit 140, a cancellation request selection unit 150, and a notification unit 160.

  As mentioned above, although this invention was demonstrated using embodiment, the technical scope of this invention is not limited to the range as described in the said embodiment. It will be apparent to those skilled in the art that various modifications or improvements can be added to the above-described embodiment. It is apparent from the scope of the claims that the embodiments added with such changes or improvements can be included in the technical scope of the present invention.

3 is a schematic diagram of an operation of the communication terminal 10. FIG. 3 is a schematic diagram of an operation of the communication terminal 10. FIG. 3 is a schematic diagram of an operation of the communication terminal 10. FIG. 2 is a block diagram showing a functional configuration of a communication terminal 10. FIG. 2 is a schematic diagram showing a flow of processing in a communication terminal 10. FIG. 2 is a schematic diagram showing a flow of processing in a communication terminal 10. FIG. FIG. 3 is a sequence diagram showing a processing flow in the communication terminal 10. FIG. 3 is a sequence diagram showing a processing flow in the communication terminal 10. 2 is a schematic diagram showing a flow of processing in a communication terminal 10. FIG. 2 is a schematic diagram showing a flow of processing in a communication terminal 10. FIG. FIG. 3 is a sequence diagram showing a processing flow in the communication terminal 10. FIG. 3 is a sequence diagram showing a processing flow in the communication terminal 10. FIG. 3 is a sequence diagram showing a processing flow in the communication terminal 10. FIG. 3 is a sequence diagram showing a processing flow in the communication terminal 10. 2 is a block diagram illustrating a hardware configuration of a communication terminal 10. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Communication terminal 20 Presence server 100 Data transmission / reception part 110 Transmission unit 111 Registration request transmission part 113 Authorization transmission part 115 Resolution request transmission part 117 Resolution transmission part 119 Status transmission part 120 Reception unit 121 Authorization reception part 123 Registration request reception part 124 Registration confirmation Reception unit 125 Status acquisition unit 127 Resolution reception unit 129 Resolution request reception unit 130 Notification control unit 140 Request input unit 150 Resolution request selection unit 160 Notification unit 162 Display unit 164 Audio output unit 1505 CPU
1510 ROM
1520 RAM
1530 Communication interface 1540 Hard disk drive 1550 Flexible disk drive 1560 CD-ROM drive 1570 Input / output chip 1575 Graphic controller 1580 Display device 1582 Host controller 1584 Input / output controller 1590 Flexible disk 1595 CD-ROM

Claims (9)

A communication terminal that acquires and displays status information indicating the status of a user of another communication terminal,
When receiving the first status information indicating the status of the user of the communication terminal is requested by the user of the other communication terminal and the user of the communication terminal approves, the first status information is transmitted to the other communication terminal. When the second communication terminal is requested by the user of the communication terminal and approved by the user of the other communication terminal to receive the second status information indicating the status of the user of the other communication terminal. Communicate with the communication control device that provides the status information to the communication terminal,
A registration request transmission unit that transmits first registration request information for requesting reception of the second status information to the other communication terminal via the communication control device;
In response to the first registration request information, the user of the other communication terminal approves that the communication terminal receives the second status information, and the communication control device sends the second status information to the communication terminal. A permission receiving unit that receives first permission information indicating that it is set to be provided from the other communication terminal;
A registration request receiving unit for receiving second registration request information for requesting reception of the first status information from the other communication terminal;
Triggered by receiving the first permission information and the second registration request information, the second permission information indicating that the other communication terminal is authorized to receive the first status information is used as the communication. A permission transmitter that automatically transmits to the other communication terminal via the control device;
A registration confirmation receiving unit for receiving registration confirmation information indicating that the first status information is set to be provided to the other communication terminal after transmitting the second permission information;
A status acquisition unit that acquires the second status information from the communication control device after the permission reception unit receives the first permission information;
A communication terminal comprising: a notification unit that notifies the status indicated by the second status information acquired by the status acquisition unit after receiving the registration confirmation information. When the status acquisition unit acquires the second status information after receiving the first permission information and before receiving the registration confirmation information, the second status information acquired by the status acquisition unit is The communication terminal according to claim 1, further comprising a notification control unit that prohibits the notification unit from notifying the status to be indicated. A cancellation request selection unit that allows a user of the communication terminal to select whether or not to cancel the setting for providing the first status information to the other communication terminal that is set in the communication control device;
When cancellation of the setting is selected, first cancellation request information indicating requesting cancellation of the setting for providing the first status information to the other communication terminal is transmitted via the communication control device. A cancellation request transmission unit for transmitting to the other communication terminal;
In response to the first cancellation request information, the first cancellation information indicating that the communication terminal cancels the provision of the first status information is approved by the user of the other communication terminal, A resolving receiver that receives from the communication terminal;
A resolution request receiving unit that receives from the other communication terminal second resolution request information indicating that the communication terminal is requested to cancel the setting for providing the second status information;
In response to the second cancellation request information, the registration confirmation reception unit has canceled the setting that the communication control device provides the second status information to the communication terminal, and the other communication terminal 1 Receive confirmation information indicating that the setting to provide status information has been resolved,
2. The communication terminal according to claim 1, wherein when the cancellation confirmation information is received, the notification unit notifies the other communication terminal that the setting for providing the first status information has been canceled. When the status acquisition unit acquires the second status information after transmitting the first cancellation request information and before receiving the cancellation confirmation information, the second status information acquired by the status acquisition unit The communication terminal according to claim 3, further comprising a notification control unit that prohibits the notification unit from notifying the status indicated by. A cancellation request selection unit that allows a user of the communication terminal to select whether or not to cancel the setting for providing the first status information to the other communication terminal that is set in the communication control device;
When cancellation of the setting is selected, first cancellation request information indicating requesting cancellation of the setting for providing the first status information to the other communication terminal is transmitted via the communication control device. A cancellation request transmitter for transmitting to the other communication terminal.
The communication terminal according to claim 1, wherein when the first cancellation request information is transmitted, the notification unit notifies the other communication terminal that the setting for providing the first status information has been canceled. . When the status acquisition unit acquires the second status information after transmitting the first cancellation request information, the notification unit notifies the status indicated by the second status information acquired by the status acquisition unit. The communication terminal according to claim 5, further comprising a notification control unit to be prohibited. A cancellation request receiving unit that receives from the other communication terminal via the communication control device, second cancellation request information indicating that the communication terminal is requested to cancel the setting for providing the second status information;
A cancellation request selection unit that allows the user of the communication terminal to select whether to cancel the setting for providing the second status information to the communication terminal with respect to the second cancellation request information;
When cancellation of the setting is selected, second cancellation information indicating that the cancellation of the setting for providing the second status information to the communication terminal is approved by the user of the communication terminal. , A cancellation transmission unit for transmitting via the communication control device,
When cancellation of the setting is selected, first cancellation request information for requesting cancellation of the setting for providing the first status information to the other communication terminal is transmitted to the other communication terminal via the communication control device. A cancellation request transmitter that automatically transmits to the communication terminal;
In response to the first cancellation request information, the registration confirmation receiving unit sets the communication control device to cancel the provision of the first status information to the communication terminal, and sets the communication confirmation device to the other communication terminal. Resolving confirmation information indicating that the second status information is set to be resolved is received,
2. The communication terminal according to claim 1, wherein, when receiving the cancellation confirmation information, the notification unit notifies the other communication terminal that it is set to cancel provision of the first status information. 3. A communication method for acquiring status information indicating a status of a user of another communication terminal and displaying the status information on the communication terminal,
When the first status information indicating the status of the user of the communication terminal is requested by the user of the other communication terminal and the user of the communication terminal approves, the first status information is sent to the communication unit. When it is requested from the user of the communication terminal and approved by the user of the other communication terminal to receive the second status information indicating the status of the user of the other communication terminal to be provided to the other communication terminal, A communication stage for providing the second status information to the communication terminal and a communication stage for communicating with the communication unit;
A registration request transmission control step for transmitting first registration request information for requesting reception of the second status information from the communication unit to the other communication terminal via the communication control device;
In response to the first registration request information, the user of the other communication terminal approves that the communication terminal receives the second status information, and the communication control device sends the second status information to the communication terminal. A permission receiving step of receiving, from the other communication terminal, first permission information indicating that it is set to be provided;
A registration request receiving step for receiving second registration request information for requesting reception of the first status information from the other communication terminal;
Triggered by receiving the first permission information and the second registration request information, the second permission information indicating that the other communication terminal is authorized to receive the first status information is used as the communication. Permission transmission control stage to automatically transmit to the other communication terminal from the unit via the communication control device,
A registration confirmation receiving step of receiving registration confirmation information indicating that the first status information is set to be provided to the other communication terminal after transmitting the second permission information;
A status acquisition step of acquiring the second status information from the communication control device after receiving the first permission information in the permission reception step;
A communication method comprising: a notification step of notifying the status indicated by the second status information acquired in the status acquisition step after receiving the registration confirmation information. A communication program for a communication terminal that acquires and displays status information indicating the status of a user of another communication terminal, wherein the communication terminal is
When receiving the first status information indicating the status of the user of the communication terminal is requested by the user of the other communication terminal and the user of the communication terminal approves, the first status information is transmitted to the other communication terminal. When the second communication terminal is requested by the user of the communication terminal and approved by the user of the other communication terminal to receive the second status information indicating the status of the user of the other communication terminal. A communication unit that communicates with a communication control device that provides status information to the communication terminal;
A registration request transmission control unit for transmitting the first registration request information for requesting reception of the second status information from the communication unit to the other communication terminal via the communication control unit;
In response to the first registration request information, the user of the other communication terminal approves that the communication terminal receives the second status information, and the communication control device sends the second status information to the communication terminal. A permission receiving unit for receiving, from the other communication terminal, first permission information indicating that it is set to be provided;
A registration request receiving unit for receiving second registration request information for requesting reception of the first status information from the other communication terminal;
Triggered by receiving the first permission information and the second registration request information, the second permission information indicating that the other communication terminal is authorized to receive the first status information is used as the communication. Permission transmission control unit to automatically transmit from the communication unit to the other communication terminal via the communication control device,
A registration confirmation receiving unit for receiving registration confirmation information indicating that the first status information is set to be provided to the other communication terminal after transmitting the second permission information;
A status acquisition unit that acquires the second status information from the communication control device after the permission reception unit receives the first permission information;
A communication program that functions as a notification unit that notifies the status indicated by the second status information acquired by the status acquisition unit after receiving the registration confirmation information.

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