JP4679396B2 - COMMUNICATION SYSTEM, SERVER DEVICE, AND TERMINAL LINKING METHOD USED FOR THEM - Google Patents

Description

  The present invention relates to a communication system, a server device, and a terminal link method used therefor, and more particularly to a link method between a wireless telephone terminal or a wired telephone terminal accommodated in a private branch exchange and a PC (personal computer) type Internet telephone terminal.

  If a wireless telephone terminal or a wired telephone terminal accommodated in a private branch exchange and a PC-type Internet telephone terminal can be used at the same time with the same extension number, one user uses a PC-type Internet telephone terminal at his / her seat, and the conference An optimal terminal can be used depending on the location, such as using a wireless telephone terminal when moving to a room or the like. Further, if the connection between the wireless telephone terminal or the wired telephone terminal and the PC type internet telephone terminal is made dense, the wireless telephone terminal or the wired telephone terminal can be used as a handset of the PC type internet telephone terminal.

  As described above, as a method of using a wireless telephone terminal or a wired telephone terminal as a handset of a PC-type Internet telephone terminal, the cooperation terminal information is registered in advance in the private branch exchange, and the presence / absence of the cooperation terminal is determined when the terminal makes / receives a call. Accordingly, a method for coupling with a cooperation terminal has been proposed (see, for example, Patent Document 1).

  When the IM & P (instant message and presence) service is used in such a terminal cooperation method, in the conventional IM & P system, presence information management and IM (instant message) control are performed for each identifier of the terminal. Therefore, when one user uses a plurality of terminals simultaneously, it is necessary for another user to grasp a plurality of identifiers as those of the same user, which is complicated. In this case, a technique for determining unique presence information from a plurality of presence information is necessary so that other users do not get confused.

  In addition, as a technique for determining unique presence information from a plurality of presence information based on predetermined conditions, the presence information is changed based on the elapsed time after presence information change, the type of presence information, and the average update interval. A method of calculating reliability indicating certainty and selecting presence information with the highest reliability, selecting presence information recently received by the presence server, or selecting based on conditions registered in advance by the user Has been proposed (see, for example, Patent Document 2).

  However, in the above technology, presence information cannot be selected according to the service capability of each terminal. Therefore, when there is a difference in the function of each terminal, or the user changes the service capability of each terminal according to the situation. For example, presence information cannot be selected reflecting the dynamic situation of the user. Further, in the above technique, the presence information received by the presence server most recently can be selected. However, since the most recently generated presence information cannot be selected, the latest presence information can be selected. Can not.

  Accordingly, there is a need for an improved presence information determination technique over the above technique. In addition, since presence is mainly used in close cooperation with instant messages, instant message control in cooperation with presence information determination technology is required.

JP 2004-229151 A JP 2004-280229 A

  A method of linking a wireless telephone terminal or a wired telephone terminal accommodated in a private branch exchange with a PC type Internet telephone terminal will be described with reference to FIG. 1 transmits / receives presence information to / from the IM software 11-0 necessary for transmitting / receiving IM (instant message) to / from the IM & P server 3 via an Internet line such as a LAN (Local Area Network). For transmitting / receiving call control information to / from a call connection control device such as presence software 12-0 and private branch exchange 4 [so-called IP-PBX (Internet Protocol-Private Branch eXchange)] Necessary call control software 13-0 is provided.

  In addition to the PC terminal 1-0, the handset terminal 2-0 such as an IM & P service-compatible wireless LAN telephone accommodated in the private branch exchange 4 or a wireless LAN telephone terminal supporting only IM service or a private PHS (Personal Handy) When the same user uses a wireless telephone terminal that does not support IM & P service such as -phone System) or a conventional wired telephone terminal, the user holds the terminal in a double manner. Therefore, since the identifier [so-called extension number or SIP-URI (Session Initiation Protocol-Uniform Resource Identifier)] managed by the private branch exchange 4 is also given twice, the management of the device and the number becomes complicated for the user. .

  If the call control information at the time of outgoing / incoming calls of the handset terminal 2-0 is linked with the PC terminal 1-0, the compatibility of the call operation is maintained, and the private branch exchange 4 manages each identifier as one, so that the mobile The handset terminal 2-0 having a high degree of freedom and an easy-to-use user interface can be used as the handset of the PC terminal 1-0.

  In such a terminal cooperation method, when IM & P service is performed, presence information set by the user from the PC terminal 1-0 and the handset terminal 2-0 is managed by the IM & P server 3 with different identifiers. In order for other users to subscribe to the presence information set from the above, it is necessary to create a buddy list by designating the same user with a plurality of identifiers, which is complicated. In addition, when an IM sender transmits an IM, it is necessary to determine whether the IM should be transmitted to the PC terminal 1-0, the handset terminal 2-0, or both.

  The IM & P server 3 only needs to manage the presence information of a plurality of terminals as one, but from the presence information set by the plurality of terminals, the presence information of users who use these terminals is determined to be consistent. Presence information decision rules are required. Similarly to the above, the IM & P server 3 may perform unified management so that the IM can be transmitted and received from any terminal using the same identifier, but there is no confusion between the IM sender and the receiver. Therefore, IM transmission / reception control is necessary.

  Furthermore, when a wireless LAN telephone terminal that supports only IM service, a telephone terminal that does not support IM & P service, such as a local PHS or a conventional wired telephone terminal, is linked as a handset of the PC terminal 1-0, Because the information cannot be entered into the IM & P server, the watcher cannot know whether the subscribed user is making a phone call using the handset.

  Accordingly, an object of the present invention is to solve the above-described problems, and a communication system, a server device, and a server that can use a presence service and transmit / receive IM without any discomfort from any terminal by a user who uses a plurality of terminals simultaneously It is in providing the terminal cooperation method used for them.

A communication system according to the present invention is a communication system including an information terminal corresponding to an instant message and presence service accommodated in a private branch exchange, and a handset terminal used as a handset for the information terminal,
Priority according to the meaning of presence information set from the information terminal and the handset terminal, a time stamp at which each presence information is generated, a type of the information terminal and the handset terminal, and a change state of the terminal And a server device for controlling presence message and presence for determining presence information of the user and controlling transmission / reception of the instant message based on service capability of each of the information terminal and the handset terminal.

  The server device according to the present invention includes an information terminal corresponding to an instant message and presence service accommodated in a private branch exchange, a priority according to the meaning of presence information set from a handset terminal used as a handset for the information terminal, Determining the presence information of the user based on the time stamp at which the presence information is generated and the service capability of each of the information terminal and the handset terminal, which changes according to the type of the information terminal and the handset terminal and the cooperation state of the terminal; Control means for controlling instant message and presence for performing transmission / reception control of the instant message are provided.

A terminal cooperation method according to the present invention is a terminal cooperation method used in a communication system including an information terminal corresponding to an instant message and presence service accommodated in a private branch exchange, and a handset terminal used as a handset for the information terminal,
Priority according to the meaning of presence information set from the information terminal and the handset terminal, a time stamp at which each presence information is generated, a type of the information terminal and the handset terminal, and a terminal cooperation state Based on the service capability of each of the information terminal and the handset terminal that change according to the process, the process of controlling the instant message and presence for determining the presence information of the user and controlling the transmission and reception of the instant message is executed.

  That is, the communication system of the present invention is a wireless LAN (Local Area Network) telephone terminal or a private handy-phone system (PHS) that supports instant messaging and presence (hereinafter referred to as IM & P) service accommodated in a private branch exchange. When using a conventional wireless telephone terminal or wired telephone terminal simultaneously as a handset and IM & P terminal for a PC (Vertical Computer) type Internet telephone terminal that supports IM & P service, use the IM & P service without any discomfort from either terminal. Make it possible.

  More specifically, in the communication system of the present invention, the IM & P server has a priority according to the meaning of presence information set from each terminal, a time stamp at which each presence information is generated, a type of terminal, By determining the presence information of the user based on the service capability of each terminal that changes according to the linkage status and performing IM (instant message) transmission / reception control, the user who uses multiple terminals at the same time or other The user can use the IM & P service without feeling uncomfortable.

  As a result, in the communication system of the present invention, when a wireless telephone terminal having a high degree of freedom of movement and a wired telephone terminal having an easy-to-use user interface are used simultaneously as a handset and an IM & P terminal corresponding to an IM & P service compatible PC type internet telephone terminal, It is possible to determine the presence information of users who use those terminals from the presence information input from other terminals so that there is no contradiction, and to make it available to other users, and to confuse users from any terminal It is possible to send and receive IMs so as not to do so.

  The present invention is configured and operated as described above, so that an effect is obtained that a user who uses a plurality of terminals at the same time can use a presence service and send and receive IMs without any discomfort from any terminal. .

  Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing a configuration of a communication system according to an embodiment of the present invention. In FIG. 1, a communication system according to an embodiment of the present invention includes PC (personal computer) terminals 1-0 and 1-1, handset terminals 2-0 and 2-1, an IM & P (instant messaging and presence) server 3, and , A private branch exchange [so-called IP-PBX (Internet Protocol-Private Branch eXchange)] 4 and a radio base station 5.

  The PC terminals 1-0 and 1-1 have IM software 11-0 and 11-1 necessary for sending and receiving IM (instant messages) to and from the IM & P server 3 via an Internet line such as a LAN (Local Area Network). Presence software 12-0, 12-1 required for sending / receiving presence information and call control software 13-0, 13-1 required for sending / receiving call control information between the private branch exchange 4 and The input / output devices 14-0 and 14-1 are connected.

  The handset terminals 2-0 and 2-1 include IM software 21-0 and 21-1, presence software 22-0 and 22-1, and call control software 23-0 and 23-1. The IM & P server 3 has a function of sending and receiving IM and a function of a presence server. That is, the IM & P server 3 includes an IM control unit 31, a presence control unit 32, a terminal cooperation control unit 33, a terminal cooperation information storage unit 34, and a presence storage unit 35.

  The PC terminal 1-0 and the handset terminal 2-0 are terminals used by the user A, and the PC terminal 1-1 and the handset terminal 2-1 are terminals used by the user B. In the private branch exchange 4, information on the handset terminal 2-0 that cooperates with the PC terminal 1-0 is registered on a one-to-one basis. Similarly, information on the handset terminal 2-1 that cooperates with the PC terminal 1-1 is also registered on a one-to-one basis.

  When the private branch exchange 4 receives a call request from the PC terminal 1-0 to the handset terminal 2-1 by the user A, the private branch exchange apparatus 4 combines the call states between the PC terminal 1-0 and the handset terminal 2-0, and the handset terminal 2- 1 and the PC terminal 1-1 are notified that the handset terminal 2-0 is making a call connection request. The private branch exchange 4 establishes a communication path between the handset terminal 2-0 and the handset terminal 2-1 when the user B who has recognized the incoming call sets the handset terminal 2-1 to the incoming call response state.

  When the private branch exchange 4 receives a call request from the handset terminal 2-0 to the handset terminal 2-1 by the user A, the private branch exchange apparatus 4 combines the call states between the PC terminal 1-0 and the handset terminal 2-0, and the handset terminal The 2-1 and PC terminal 1-1 are notified that the handset terminal 2-0 is making a call connection request. The private branch exchange 4 establishes a communication path between the handset terminal 2-0 and the handset terminal 2-1 at the stage when the user B who has recognized the incoming call sets the handset terminal 2-1 to the incoming call response state, and at the same time, 0 and the connection status are linked.

  When the handset terminal cannot be used, for example, when the user A forgets the PC terminal 1-0 at home, by setting the cancellation of the cooperation state from the PC terminal 1-0 to the private branch exchange apparatus 4, The input / output device 14-0 of the PC terminal 1-0 can be used as a handset. Through the above operation, the private branch exchange 4 recognizes the cooperation on the LAN of the PC terminal 1-0 that cooperates with the handset terminal 2-0 and the PC terminal 1-1 that cooperates with the handset terminal 2-1.

  When the user A and the user B use the IM & P service, the PC terminal 1-0, the handset terminal 2-0, the PC terminal 1-1, and the handset terminal 2-1 have different identifiers [so-called extension numbers and SIP -URI (Session Initiation Protocol-Uniform Resource Identifier)].

  As shown in FIG. 1, when one user uses a plurality of identifiers, when another user makes a call, refers to presence information, or gets confused when sending IM, Expose a unique identifier to other users. In the following description, it is assumed that the identifier of the handset is disclosed to other users, and the identifier is called a main identifier.

  Next, the basic operation of the presence service will be described. The presence service includes a presentity for issuing presence information to a presence server, a watcher for requesting the presence server to subscribe to presence information of the presentity, and a presence server for notifying the watcher of presence information issued by the presentity. Composed.

  In many cases, it is assumed that the presence service compatible terminal includes both the presentity and the watcher, and the presence software in each terminal illustrated in FIG. 1 includes both. When user A adds a terminal to his / her buddy list at PC terminal 1-0 and handset terminal 2-0, and user B at PC terminal 1-1 and handset terminal 2-1, each terminal and IM & P server together with its identifier 3 sends a subscription request. The IM & P server 3 that has received the subscription request notifies the presence information of the corresponding terminal.

  When user A inputs his / her presence information, such as during a meeting or a meeting, at PC terminal 1-0 and handset terminal 2-0, and user B at PC terminal 1-1 and handset terminal 2-1, each terminal has its identifier. Presence information is issued to the IM & P server 3. When there is a change in the presence information of the presentity, the IM & P server 3 notifies the presence information to all watchers subscribed to the presentity.

  Next, the basic operation of the IM service will be described. When user A transmits IM at PC terminal 1-0 and handset terminal 2-0 and user B transmits IM at PC terminal 1-1 and handset terminal 2-1, each terminal sends an IM transmission request to IM & P server 3 together with its identifier. Send. The IM & P server 3 transfers the IM to the destination terminal. The transmission destination terminal is notified of the identifier of the transmission source terminal.

  Next, a method for using the presence service in the terminal cooperation system will be described. In the IM & P server 3, identifiers are registered on a one-to-one basis in advance by a combination of the PC terminal 1-0 and the handset terminal 2-0, and a combination of the PC terminal 1-1 and the handset terminal 2-1. 3 receives the subscription request for the handset terminal 2-0 from the PC terminal 1-1, confirms the terminal cooperation information, compares the presence information of the handset terminal 2-0 with the presence information of the PC terminal 1-0, The presence information determined to be appropriate based on the set rule is selected and notified to the PC terminal 1-1.

  Similarly, when the IM & P server 3 receives a subscription request from the handset terminal 2-1 to the handset terminal 2-0, the IM & P server 3 confirms the terminal link information, and presence information of the handset terminal 2-0 and presence information of the PC terminal 1-0 And the presence information determined to be appropriate based on a preset rule is selected and notified to the handset terminal 2-1.

  When the IM & P server 3 receives the issuance of presence information from the PC terminal 1-0, the IM & P server 3 stores the presence information of the PC terminal 1-0, the presence information of the PC terminal 1-0, and the presence information of the handset terminal 2-0. Are compared based on preset rules, and presence information determined to be appropriate is selected and notified. Similarly, when the IM & P server 3 receives the presence information issued from the handset terminal 2-0, the IM & P server 3 stores the presence information of the handset terminal 2-0, and the presence information of the handset terminal 2-0 and the PC terminal 1-0. And the presence information determined as appropriate are selected and notified.

  Next, a method for selecting appropriate presence information from presence information set from the handset terminal and the PC terminal will be described. In Internet telephone presence systems and IM systems, presence information is mainly used as information for determining appropriate communication means. For example, if the presence information of the person you want to contact is “meeting”, tell me the message in IM, if “offline (going out)”, send an e-mail, look for someone who is not “on the phone” Appropriate communication means such as making a call can be selected.

  When there are a plurality of presence information setting sources, such as a handset terminal and a PC terminal, inconsistency of presence information may occur if the watcher is notified each time presence information is simply set. For example, when the PC terminal is shut down while the handset terminal is activated, if the PC terminal notifies the IM & P server 3 of “offline” at the time of shutdown, the handset terminal is “offline” even though the handset terminal is activated. End up. If the PC terminal is activated when a call is made at the handset terminal and the presence information is “calling”, the PC terminal notifies the IM & P server 3 of “online” at the time of activation. Despite making a call on the terminal, it becomes “online”.

  If both the handset terminal and the PC terminal can use the telephone and the IM function, “offline” should be “offline” when both the handset terminal and the PC terminal are offline, and the handset terminal and the PC terminal. Should be “on the phone” if either is on the phone.

  Thus, appropriate presence information must be selected according to the meaning of presence information. However, since it is difficult for the IM & P server 3 to analyze the meaning of the presence information, the presence information is prioritized according to the meaning and the presence information set from each terminal is different. Selects presence information with high priority. In the Internet telephone system, the priority “on the phone” is the highest and the priority “offline” is the lowest. The priority of other presence information is assumed to be intermediate.

  Also, if the PC terminal does not have a voice input / output device, or if you do not want to receive the telephone and IM when the handset terminal is turned off or out of service area, you can receive the telephone and IM only with the handset terminal. You can also set the linkage so that there is no. In such a cooperative state, the function of performing a call using the handset connected to the PC terminal and the IM reception function are disabled, and thus the PC terminal is activated when the handset terminal is turned off or out of service area. The presence information should be “offline”.

  Thus, it is necessary to select appropriate presence information according to the service capability of the cooperation terminal. Each terminal issues its own service capability information in presence information and the IM & P server 3 selects presence information based on the information. If one of the linked terminals does not have service capability, the presence information of the terminal that can use the IM & P function and the telephone function is selected.

  In addition, a non-reliable transport such as UDP (User Datagram Protocol) is used for communication between the terminal and the IM & P server 3, and the handset terminal is a wireless LAN and the PC terminal is a wired LAN. If the communication environment is different, the order in which the IM & P server 3 receives presence information issued from each terminal may be reversed.

  For example, immediately after setting “resting” on a handset terminal using a wireless LAN, if the “conference” is set on a PC terminal using a wired LAN, the IM & P server 3 causes a transmission delay of the wireless LAN, etc. The presence issuance request “meeting” is received prior to “resting”, and the presence information of “resting” is treated as the latest even though it is “meeting”.

  Usually, the IM & P server 3 can detect an abnormality in the order of message reception by the sequence number added to the presence information issuance message by the terminal. In this method, the order management of messages issued from a plurality of terminals is performed. I can't. The terminal issues the presence information including the time stamp when the presence information is changed, and the IM & P server 3 uses the time stamp for the presence issue order management between the terminals.

  In this embodiment, in order to select unique presence information from presence information set from a plurality of terminals, the priority of the presence information, the time stamp at which the presence information was generated, and the service capability information of the cooperation terminal are used.

  In this case, the IM & P server 3 first checks the priority of the presence information set from each terminal, and if the priorities are equal, selects the presence information with the latest time stamp. The IM & P server 3 confirms the service capability of each terminal when the priorities are different. The IM & P server 3 selects presence information with high priority when the service capabilities are equal. When the service capabilities are different, the IM & P server 3 selects presence information of a terminal in which the IM and telephone functions are available.

  Note that when terminal cooperation is performed in the presence service, for example, if the presence information change on the handset side is not reflected on the cooperating PC terminal side, it will be confused when the user changes the terminal. Therefore, in order to synchronize presence information between terminals, each terminal is set with a main identifier to be disclosed to other users as linked terminal information, and when linked terminal information is set for each terminal, a subscription to the identifier is made. A request is made when the terminal is started. Presence information held in its own terminal and displayed on the screen is synchronized with the presence information of the main identifier notified from the IM & P server 3.

  In FIG. 1, the identifier of the PC terminal 1-0 is set in the handset terminal 2-0 as linked terminal information. As a result of the user A changing the presence information at the PC terminal 1-0, the handset terminal 2-0 uses the presence information of the PC terminal 1-0 notified from the IM & P server 3 as the presence information of the own terminal. Similarly, the identifier of the handset terminal 2-0 is set as the cooperation terminal information in the PC terminal 1-0. As a result of the user A changing the presence information at the handset terminal 2-0, the PC terminal 1-0 uses the presence information of the handset terminal 2-0 notified from the IM & P server 3 as the presence information of the own terminal. By this method, presence information set in each terminal is shared among the linked terminals, so that the user is not confused when the terminal is switched.

  In addition, when an external application such as the scheduler directly changes the presence information of the terminal in the IM & P server 3 as well as the change by the cooperation terminal, the change is reflected on the change target terminal, so that the user can It is possible to confirm the automatic input of presence information by. Furthermore, it is possible to change the service capability of the own terminal, such as disabling the IM or telephone function, or to shut down the own terminal according to the presence information set by the cooperation terminal.

  According to the above method, in this embodiment, presence information can be subscribed to and issued from any of the terminals that are in cooperation with the terminal without any sense of incongruity.

  Next, a method for using the IM service in the terminal cooperation system will be described. Hereinafter, an operation when user A transmits IM to user B will be described.

  When user A transmits IM using the handset terminal 2-0, the handset terminal 2-0 designates the identifier of the handset terminal 2-1 as destination information together with the identifier, and sends an IM transmission request to the IM & P server 3 I do. The IM & P server 3 transfers the IM to the handset terminal 2-1, using the identifier of the handset terminal 2-0 as transmission source information.

  When the user A transmits an IM using the PC terminal 1-0, the PC terminal 1-0 specifies the identifier of the handset terminal 2-1 as destination information together with the identifier, and sends an IM transmission request to the IM & P server 3 I do. In the IM & P server 3, identifiers are registered in a one-to-one relationship with a combination of the PC terminal 1-0 and the handset terminal 2-0 and a combination of the PC terminal 1-1 and the handset terminal 2-1, respectively. The IM & P server 3 transfers the IM to the handset terminal 2-1, using the identifier of the handset terminal 2-0 as transmission source information. The IM can be transmitted from either the PC terminal 1-0 or the handset terminal 2-0, and the same transmission source information is notified to the IM transmission destination regardless of which is transmitted.

  When user B receives an IM from user A, at this time, user B is using handset terminal 2-1 as a handset in the vicinity of PC terminal 1-1, or holding only handset terminal 2-1 for a conference. Whether you are moving to a room, etc., you are in front of the PC terminal 1-1 without knowing that you have left the handset terminal 2-1 in the conference room, etc., or you forget the handset terminal 2-1 at home It is difficult for the IM sender and the IM & P server 3 to determine the IM reception environment of the user B, such as whether only 1-1 is used. Therefore, in order for user B to be able to receive IM at either terminal, it is necessary to transmit the IM to both PC terminal 1-1 and handset terminal 2-1.

  However, when the power of the handset terminal 2-1 is turned off or out of service area, there is a case where the cooperation setting is performed so that the IM can be received only by the handset terminal 2-1 in order to receive no IM. In such a cooperative state, the IM reception function of the PC terminal 1-1 is disabled, and the IM & P server 3 does not need to transmit IM to the PC terminal 1-1. As described above, it is necessary to transfer IM in accordance with the service capability of the cooperation terminal. Except for terminals that do not support presence services, each terminal issues information including its own service capability information in presence information. The IM & P server 3 performs IM transfer destination control based on the information.

  When user A transmits IM to user B, IM is first exchanged using PC terminal 1-0 equipped with a keyboard or the like that is easy to input characters. There is a case of approaching the conference room with the handset terminal 2-0. At this time, by the above-described method, it is possible to perform IM with the same partner using the handset terminal 2-0 next time while moving toward the conference room.

  However, the IM received from the user B can be received by both the PC terminal 1-0 and the handset terminal 2-0 by the above-described method. Since the received message does not exist as a history on the IM chat screen of the handset terminal 2-0, the user cannot confirm his / her speech and the conversation flow is lost.

  When user A transmits an IM using the PC terminal 1-0, the same content is transmitted to the handset terminal 2-0 at the same time, and the contents of the messages in the PC terminal 1-0 and the handset terminal 2-0 are transmitted. Matching makes it possible to switch terminals during a chat without feeling uncomfortable.

  2 to 7 are sequence charts showing the operation of the communication system according to one embodiment of the present invention. The operation of the communication system according to one embodiment of the present invention will be described with reference to FIGS. FIG. 2 shows a processing example of the PC terminal 1-0 or the handset terminal 2-0 and the IM & P server 3 when the PC terminal 1-0 or the handset terminal 2-0 makes a subscription request for presence information. Hereinafter, processing performed by the PC terminal 1-0 or the handset terminal 2-0 and the IM & P server 3 when making a presence information subscription request will be described with reference to FIG.

  When the user uses one of the PC terminal 1-0 and the handset terminal 2-0 (referred to as terminal X) and registers the other terminal Y in the buddy list, the terminal X transmits a subscription request to the IM & P server 3. (Step S1 in FIG. 2).

  When the presence control unit 32 in the IM & P server 3 receives the subscription request (step S11 in FIG. 2), the terminal X is registered in the watcher list of the terminal Y (step S12 in FIG. 2). A request for presence information acquisition is made based on the identifier (step S13 in FIG. 2). The presence control unit 32 acquires the presence information of the terminal Y returned from the terminal cooperation control unit 33 (step S14 in FIG. 2), and notifies the terminal X that has transmitted the subscription request (step S15 in FIG. 2). Information notification is received (step S2 in FIG. 2).

  Here, FIG. 3 shows an example of presence processing of the terminal cooperation control unit 33 in the IM & P server 3 described above. Hereinafter, the presence process of the terminal cooperation control unit 33 in the IM & P server 3 will be described with reference to FIG.

  When receiving the presence information acquisition request (step S21 in FIG. 3), the terminal cooperation control unit 33 searches the terminal cooperation information storage unit 34 for terminal cooperation information based on the requested identifier (step S22 in FIG. 3). The terminal cooperation control unit 33 determines the presence / absence of the cooperation terminal based on the search result (step S23 in FIG. 3), and when there is no cooperation terminal, selects presence information of the only terminal that exists (step S31 in FIG. 3). ). Further, when there is a cooperation terminal, the terminal cooperation control unit 33 acquires the presence information of each terminal (step S24 in FIG. 3).

  The terminal cooperation control unit 33 checks whether there is a plurality of presence information (step S25 in FIG. 3), and if there is not a plurality of presence information, selects presence information of the only terminal that exists (step S31 in FIG. 3). In addition, when there is a plurality of presence information, the terminal cooperation control unit 33 confirms the priority of each presence information (step S26 in FIG. 3), and when the priorities are equal, the presence information including the latest time stamp is selected. (FIG. 3, step S28).

  If the priority is different, the terminal cooperation control unit 33 checks the service capability (step S27 in FIG. 3), and if the cooperation terminal does not have both service capabilities, selects the presence information of one terminal having the service capability. (FIG. 3, step S29). Moreover, the terminal cooperation control part 33 selects presence information with a high priority, when both the cooperation terminals are provided with service capability (step S30 of FIG. 3). The terminal cooperation control unit 33 returns the unique presence information selected by the above processing (step S32 in FIG. 3).

  FIG. 4 shows a processing example of the PC terminal 1-0 or the handset terminal 2-0 and the IM & P server 3 when the PC terminal 1-0 or the handset terminal 2-0 issues presence information. Hereinafter, processing performed by the PC terminal 1-0 or the handset terminal 2-0 and the IM & P server 3 when issuing presence information will be described with reference to FIG.

  When the user uses one of PC terminal 1-0 and handset terminal 2-0 (referred to as terminal X) and sets presence information, terminal X issues presence information to IM & P server 3 (step S41 in FIG. 4). ). When the presence control unit 32 of the IM & P server 3 receives the issue (step S51 in FIG. 4), the issued presence information is stored in the presence storage unit 35 (step S52 in FIG. 4), and the watcher list of the terminal X is acquired (FIG. 4). 4 step S53).

  The presence control unit 32 requests the terminal cooperation control unit 33 to acquire presence information based on the identifier of the terminal X (step S54 in FIG. 4). The presence control unit 32 acquires the presence information of the terminal X returned from the terminal cooperation control unit 33 (step S55 in FIG. 4), and notifies all the terminals existing in the watcher list (step S56 in FIG. 4). Since terminal X makes a subscription request to its own terminal in advance, it receives a notification of presence information (step S42 in FIG. 4), and reflects the received presence information as a presence information of its own terminal on the screen display (step in FIG. 4). S43).

  Here, the presence process of the terminal cooperation control unit 33 in the IM & P server 3 is performed in the same manner as the process shown in FIG. 3 described above.

  FIG. 5 shows an example of IM processing in the IM & P server 3. Hereinafter, IM processing in the IM & P server 3 will be described with reference to FIG.

  When the user uses the PC terminal 1-0 (referred to as terminal X ′) or the handset terminal 2-0 (referred to as terminal X) and transmits IM to another terminal Y, the PC terminal X ′ or the handset terminal X becomes IM & P. An IM transmission request is transmitted to the server 3 (step S61 in FIG. 5).

  When the IM control unit 31 in the IM & P server 3 receives the IM transmission request (step S81 in FIG. 5), the terminal cooperation control unit 33 is requested to acquire information on the IM transmission destination based on the identifier of the terminal Y, and IM transmission is performed. The previous identifier is acquired (step S82 in FIG. 5). The IM control unit 31 determines whether or not one or more valid IM destinations have been returned (step S83 in FIG. 5), and if no valid IM destination is returned, notifies the terminal X ′ of a transmission failure. (FIG. 5, step S87).

  When a valid IM transmission destination is returned, the IM control unit 31 requests the terminal cooperation control unit 33 to acquire information on the IM transmission source based on the identifier of the terminal X ′, and acquires the main identifier of the transmission source (Step S84 in FIG. 5). The IM control unit 31 replaces the IM transmission source identifier with the main identifier (step S85 in FIG. 5), and transfers the IM to the acquired IM transmission destination (step S86 in FIG. 5). Terminal Y receives IM (steps S101 and S111 in FIG. 5).

  The IM control unit 31 notifies the terminal X ′ of the transmission failure when all the transmitted IMs have failed to be transmitted, and if the transmission of any IM succeeds, the IM control unit 31 notifies the terminal X ′ of the transmission success. Notification is made (step S87 in FIG. 5). The terminal X ′ receives the IM transmission result (step S62 in FIG. 5).

  If any IM transmission is successful (step S88 in FIG. 5), the IM control unit 31 subsequently requests the terminal cooperation control unit 33 to acquire information on the IM transmission destination based on the identifier of the terminal X ′, The identifier of the IM transmission destination is acquired (step S89 in FIG. 5). The IM control unit 31 determines whether there is an identifier other than the transmission source among the acquired IM transmission destinations (step S90 in FIG. 5). If it exists, the IM control unit 31 transfers the IM with the same content to the corresponding terminal (step S91 in FIG. 5), and the terminal X receives the IM (step S71 in FIG. 5).

  FIG. 6 shows a processing example of an IM transmission destination acquisition request of the terminal cooperation control unit 33 in the IM & P server 3. Hereinafter, processing of an IM transmission destination acquisition request of the terminal cooperation control unit 33 in the IM & P server 3 will be described with reference to FIG.

  When receiving the IM transmission destination acquisition request (step S121 in FIG. 6), the terminal cooperation control unit 33 searches the terminal cooperation information storage unit 34 for terminal cooperation information based on the requested identifier (step S122 in FIG. 6). The terminal cooperation control unit 33 confirms the presence information of the cooperation terminal based on the search result (step S123 in FIG. 6).

  The terminal cooperation control unit 33 determines whether or not the presence information of all terminals is offline (step S124 in FIG. 6), and if it is offline, does not select the terminal identifier (step S128 in FIG. 6). If there is any terminal whose presence information is not offline, the terminal cooperation control unit 33 checks the service capability of those terminals (step S125 in FIG. 6).

  Further, the terminal cooperation control unit 33 determines whether or not the IM function is explicitly disabled for all terminals (step S126 in FIG. 6), and the IM function is disabled for all terminals. The terminal identifier is not selected (step S128 in FIG. 6). If there are one or more terminals whose IM function is not clearly indicated as invalid, the terminal cooperation control unit 33 selects identifiers of those terminals (step S127 in FIG. 6). The terminal cooperation control unit 33 returns the identifier of the terminal selected by the above processing (step S129 in FIG. 6).

  FIG. 7 shows a processing example of an IM transmission source acquisition request of the terminal cooperation control unit 33 in the IM & P server 3. Hereinafter, processing of an IM transmission source acquisition request of the terminal cooperation control unit 33 in the IM & P server 3 will be described with reference to FIG.

  Upon receiving the IM transmission destination acquisition request (step S131 in FIG. 7), the terminal cooperation control unit 33 searches the terminal cooperation information storage unit 34 for terminal cooperation information based on the requested identifier (step S132 in FIG. 7). The terminal cooperation control unit 33 determines the presence / absence of the cooperation terminal based on the search result (step S133 in FIG. 7), and if it does not exist, selects the identifier of the only terminal (step S135 in FIG. 7). Of these, the main identifier is selected (step S134 in FIG. 7). The terminal cooperation control unit 33 returns the identifier of the terminal selected by the above processing (step S136 in FIG. 7).

  Thus, in this embodiment, the priority of the presence information set by each terminal, the priority at which the presence information is generated, the service of each terminal that changes according to the function and linkage status of the terminal. Since the presence information of the user is determined based on the ability, a user who uses a plurality of terminals simultaneously can use the presence service without any discomfort from any terminal.

  In the present embodiment, the IM & P server 3 notifies the other party of the unique identifier regardless of which terminal is used to transmit the IM, and the presence information of the cooperation terminal of the transmission destination user. Based on the service capability that changes in accordance with the cooperation status, a terminal that can receive IM is selected and transmitted, so that a user who uses multiple terminals simultaneously transmits and receives IM without any discomfort from any terminal be able to.

  Further, in this embodiment, the IM transmitted by the other party is received by a plurality of cooperative terminals used by the user, and the IM transmitted by the user is received by the user's cooperative terminal. You can switch terminals while chatting without feeling uncomfortable.

  FIG. 8 is a block diagram showing a configuration example of a communication system according to another embodiment of the present invention. FIG. 8 shows a configuration when a conventional wireless telephone terminal such as an IM service-compatible wireless LAN telephone terminal or a local PHS, a wired telephone terminal, or the like is used as a handset of an IM & P service-compatible personal computer type internet telephone terminal. . Here, the handset terminals 2a-0 and 2a-1 are different from the above-described embodiment of the present invention in that they do not include presence software necessary for sending and receiving presence information.

  A terminal cooperation method for presence service in another embodiment of the present invention will be described. Since the handset terminal 2a-0 does not have the presence function, presence information of the handset terminal 2a-0 does not exist on the IM & P server 3, and is NULL. Therefore, the presence information set by the PC terminal 1-0 is always notified to the watcher as the presence information of the handset terminal 2a-0.

  Since the handset terminal 2a-0 does not have a presence function, when the handset terminal 2a-0 is making a call, the handset terminal 2a-0 directly issues “in-call” presence information to the IM & P server 3. I can't do it. When a call is made at the handset terminal 2a-0, since the private branch exchange 4 links the connection state between the PC terminal 1-0 and the handset terminal 2a-0, the handset terminal 2a-0 Presence information that a call is being made is issued to the IM & P server 3 by the PC terminal 1-0 as a proxy.

  At this time, if the presence information is set to “secret” on the PC terminal 1-0, even if a call is made on the handset terminal 2a-0, the presence information “on the phone” is not issued, etc. Presence information can be issued based on the rules held by the terminal 1-0.

  The operation of the IM according to this embodiment is the same as that of the above-described embodiment of the present invention. When the handset terminal 2a-0 is a conventional wireless telephone terminal or wired telephone terminal such as a local PHS, the IM service is performed by the PC terminal 1-0 because it does not have an IM function.

  FIG. 9 is a sequence chart showing the operation of the communication system according to another embodiment of the present invention. The operation of the communication system according to another embodiment of the present invention will be described with reference to FIGS. FIG. 9 shows a processing example of the handset terminal 2a-0, the PC terminal 1-0, the call connection device, and the IM & P server 3 when the handset terminal 2a-0 makes a call.

  When the user performs a call operation using the handset terminal 2a-0, the handset terminal 2-0 transmits a call request to the call connection device (step S161 in FIG. 9). When the call connection device receives the call origination request (step S151 in FIG. 9), it searches the database based on the received caller information and obtains terminal cooperation information (step S152 in FIG. 9). The call connection device transmits outgoing call information to the cooperation terminal (PC terminal 1-0) of the handset terminal 2a-0 (step S153 in FIG. 9) and simultaneously transmits an incoming call request to the destination terminal (FIG. 9). Step S154).

  The destination terminal receives the incoming request (step S141 in FIG. 9), and the PC terminal 1-0, which is the cooperation terminal of the source terminal, receives the outgoing information (step S171 in FIG. 9). The PC terminal 1-0 that has received the transmission information determines presence information based on a preset presence information setting rule (step S172 in FIG. 9), and issues the determined presence information to the IM & P server 3 (FIG. 9). Step S173). The IM & P server 3 receives the issuance of presence information (step S181 in FIG. 9).

  When the user performs a response operation at the destination, the destination terminal notifies the call connection device of the response (step S142 in FIG. 9). When the call connection device receives the response notification (step S155 in FIG. 9), the call connection device notifies the handset terminal 2a-0 of the response (step S156 in FIG. 9). The handset terminal 2a-0 receives the response (step S162 in FIG. 9) and enters a call state. At the same time, the call connection device transmits response information to the PC terminal 1-0 that is the cooperation terminal of the handset terminal 2a-0 (step S157 in FIG. 9), and the PC terminal 1-0 receives the transmission information (FIG. 9). Step S174).

  The PC terminal 1-0 that has received the transmission information determines presence information based on a preset presence information setting rule (step S175 in FIG. 9), and issues the determined presence information to the IM & P server 3 (FIG. 9). Step S176). The IM & P server 3 receives the issuance of presence information (step S182 in FIG. 9).

  As described above, in this embodiment, the cooperation terminal (PC terminal 1-0) having the presence function based on the call information of the handset terminal 2-0 notified from the call connection device transmits the presence information to the IM & P server 3. Therefore, the call information of the handset terminal 2-0 that does not have the presence function can be reflected in the presence information.

It is a block diagram which shows the structure of the communication system by one Example of this invention. It is a sequence chart which shows operation | movement of the communication system by one Example of this invention. It is a sequence chart which shows operation | movement of the communication system by one Example of this invention. It is a sequence chart which shows operation | movement of the communication system by one Example of this invention. It is a sequence chart which shows operation | movement of the communication system by one Example of this invention. It is a sequence chart which shows operation | movement of the communication system by one Example of this invention. It is a sequence chart which shows operation | movement of the communication system by one Example of this invention. It is a block diagram which shows the structural example of the communication system by the other Example of this invention. It is a sequence chart which shows the operation | movement of the communication system by the other Example of this invention.

Explanation of symbols

1-0, 1-1 PC terminal 2-0, 2-1,
2a-0, 2a-1 Handset terminal
3 IM & P server
4 Private branch exchange
5 wireless base stations 11-0, 11-1,
21-0, 21-1 IM software 12-0, 12-1,
22-0, 22-1 Presence software 13-0, 13-1,
23-0, 23-1 Call control software 14-0, 14-1 I / O device
31 IM controller
32 Presence Control Unit
33 Terminal cooperation control unit
34 Terminal cooperation information storage unit
35 Presence storage

Claims (18)

A communication system including an information terminal corresponding to an instant message and presence service accommodated in a private branch exchange, and a handset terminal used as a handset for the information terminal,
The priority according to the meaning of presence information set from the information terminal and the handset terminal, the time stamp at which each presence information is generated, the type of the information terminal and the handset terminal, and the change state of the terminal And a server device for controlling presence message and presence for determining presence information of the user and controlling transmission / reception of the instant message based on service capability of each of the information terminal and the handset terminal. .   The server device includes a priority according to the meaning of presence information set by each terminal, a time stamp when the presence information is generated, a function of each terminal, and a service capability of each terminal that changes according to a cooperation state. 2. The communication system according to claim 1, wherein presence information of the user is determined based on the information.   The server device notifies the other party of the unique identifier regardless of which terminal is used to transmit the instant message, and based on the presence information of the cooperation terminal of the transmission destination user and the service capability 3. The communication system according to claim 1, wherein a terminal capable of receiving the instant message is selected and the instant message is transmitted.   The instant message transmitted by the other party is received by a plurality of cooperation terminals used by the user, and the instant message transmitted by the user is received by the user's own cooperation terminal. Any one of the communication systems.   The communication system according to any one of claims 1 to 4, wherein a cooperative terminal having a presence function issues presence information to the server device as a proxy based on call information of the handset terminal.   6. The device according to claim 1, wherein the handset terminal is at least one of a wireless LAN (Local Area Network) telephone terminal, a local PHS (Personal Handy-phone System), and a wired telephone terminal. The communication system described.   Information terminal corresponding to instant message and presence service accommodated in private branch exchange, priority according to meaning of presence information set from handset terminal used as handset for said information terminal and time when each presence information was generated Determination of the presence information of the user based on the service capability of each of the information terminal and the handset terminal that changes according to the stamp, the type of the information terminal and the handset terminal, and the cooperation state of the terminal, and transmission / reception control of the instant message A server device characterized by having control means for controlling instant messages and presence to perform.   The control means includes a priority according to the meaning of presence information set by each terminal, a time stamp at which the presence information is generated, a function of each terminal, and a service capability of each terminal that changes according to a cooperation state. 8. The server device according to claim 7, wherein the presence information of the user is determined based on the server.   The control means notifies the other party of the unique identifier even if the instant message is transmitted using any terminal that is linked, and based on the presence information of the linked user's linked terminal and the service capability The server device according to claim 7 or 8, wherein a terminal capable of receiving the instant message is selected and the instant message is transmitted.   The said control means transmits the said instant message which the other party transmits to the some cooperation terminal which a user utilizes, The said instant message which the said user transmits is transmitted to the said user's own cooperation terminal, It is characterized by the above-mentioned. The server device according to claim 7.   11. The control unit according to claim 7, wherein the control unit receives and holds presence information issued by a proxy terminal having a presence function on the basis of call information of the handset terminal. Server device.   12. The method according to claim 7, wherein the handset terminal is at least one of a wireless LAN (Local Area Network) telephone terminal, a local PHS (Personal Handy-phone System), and a wired telephone terminal. The server apparatus of description. A terminal cooperation method used in a communication system including an information terminal corresponding to an instant message and presence service accommodated in a private branch exchange, and a handset terminal used as a handset for the information terminal,
Priority according to the meaning of presence information set from the information terminal and the handset terminal, a time stamp at which each presence information is generated, a type of the information terminal and the handset terminal, and a terminal cooperation state A process for controlling the instant message and presence for determining the presence information of the user and controlling the transmission / reception of the instant message based on the service capability of each of the information terminal and the handset terminal that change according to The terminal linkage method.   The server device has a priority according to the meaning of presence information set by each terminal, a time stamp at which the presence information is generated, a function of each terminal, and a service capability of each terminal that changes according to a cooperation state. 14. The terminal cooperation method according to claim 13, wherein the presence information of the user is determined based on the information.   The server device notifies the other party of the unique identifier even if the instant message is transmitted using any terminal that cooperates, and based on the presence information of the cooperation terminal of the transmission destination user and the service capability The terminal cooperation method according to claim 13 or 14, wherein a terminal capable of receiving the instant message is selected and the instant message is transmitted.   16. The instant message transmitted by the other party is received by a plurality of cooperation terminals used by the user, and the instant message transmitted by the user is received by the user's own cooperation terminal. One of the terminal linkage methods.   The terminal cooperation method according to any one of claims 13 to 16, wherein a cooperation terminal having a presence function issues presence information as a proxy to the server device based on call information of the handset terminal. .   The handset terminal is at least one of a wireless LAN (Local Area Network) telephone terminal, a local PHS (Personal Handy-phone System), and a wired telephone terminal. The terminal cooperation method described.

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