JP4119816B2 - Call control system, server device, and call control method - Google Patents

Description

  The present invention relates to a call control system, a server measure, and a call control method for controlling a call from a telephone connected to a network such as an IP telephone and a telephone call between these telephones.

Conventionally, when a user makes a call with another user having a home page, clicking a corresponding area of the other user's home page from the screen of a personal computer (hereinafter referred to as “PC”), a web server connected to the IP network is displayed. There is known a telephone communication system in which a caller is specified from a user device (PC) and a callee is specified from click information, call setup is performed between the two, and communication is performed between both telephones or PCs ( For example, see Patent Document 1). According to this telephone communication system, it is possible to make a voice call without using the telephone number of the communication partner.
JP 2002-152406 A

  However, in the conventional telephone communication system, since the caller is specified from the user device, there is a problem that only call control between the user and another communication partner can be performed.

  The present invention has been made in view of such problems, and it is an object of the present invention to provide a call control system, a server device, and a call control method capable of performing a plurality of call controls between telephones connected to a network. And

  The present invention registers a client terminal having a WWW browser function, a WWW server that sends a screen for designating a destination telephone and a source telephone to the client terminal, and telephone number data of the WWW server and the source telephone. In a call control system comprising a gatekeeper device, when a call request including designation of a destination phone and a source phone is received from a client terminal, the WWW server artificially communicates with the source phone via the gatekeeper device. A call channel is set, and before the call channel is established, the call source telephone is established with the call destination telephone.

  According to the call control system, server device, and call control method of the present invention, a plurality of call controls can be performed between telephones connected to a network.

  A call control system according to a first aspect of the present invention includes a client terminal having a WWW browser function, a WWW server that sends a screen for designating a destination telephone and a source telephone to the client terminal, and the WWW server. And a gatekeeper device for registering telephone number data of the caller telephone, and when receiving a call request including designation of the callee telephone and the caller telephone from the client terminal, the WWW A server sets a call channel in a pseudo manner with the caller phone via the gatekeeper device, and calls between the caller phone and the callee phone before the call channel is established. A configuration for establishing a channel is adopted.

  According to this configuration, after the call source telephone is established with the call destination telephone, the call control with the call source telephone and the call destination telephone specified by the user of the client terminal is performed. Since the processing is released, the call control processing between other telephones can be performed thereafter. For this reason, a plurality of call controls can be performed between telephones connected to the network.

  According to a second aspect of the present invention, in the call control system according to the first aspect, the WWW server relates to the gatekeeper device when performing a pseudo call channel setting with the caller telephone. In FIG. 2, a configuration is adopted in which communication with the caller telephone is performed as a virtual telephone placed on the network.

  According to this configuration, since the WWW server communicates with the caller telephone as a virtual telephone in the relationship with the gatekeeper device, the H.264 defined by the ITU-T is not required. Communication can be processed according to the H.323 recommendation.

  According to a third aspect of the present invention, in the call control system according to the first or second aspect, the WWW server artificially sets a call channel with the caller telephone, and then Before the channel is established, the source telephone is notified of information related to the destination telephone, and the source telephone sets a call channel with the destination telephone according to the information. take.

  According to this configuration, before the call channel between the WWW server and the caller telephone is established, information on the callee telephone is notified to the caller telephone, and in response to this notification, the caller telephone is connected to the callee telephone. The call channel between the caller telephone and the call destination telephone can be surely set before the call channel between the WWW server and the caller telephone is established. .

  According to a fourth aspect of the present invention, in the call control system according to any one of the first to third aspects, the WWW server registers the telephone number data of the destination telephone in advance and accesses the client terminal A screen for designating the destination telephone dedicated to the user is created based on the telephone number data and sent to the client terminal.

  According to this configuration, since the destination telephone can be specified from the screen for specifying the destination telephone dedicated to the user of the client terminal, the user of the client terminal only needs to have a terminal having a browser function. It is possible to easily make a call to a desired destination at an arbitrary place.

  According to a fifth aspect of the present invention, in the call control system according to any one of the first to fourth aspects, the WWW server stores transmission history data of a user of the client terminal that has previously accepted a transmission request. Then, a screen for designating the destination telephone and the source telephone dedicated to the user of the client terminal that has accessed is created based on the outgoing call history data and sent to the client terminal.

  According to this configuration, the destination telephone and the source telephone can be designated from the screen for designating the destination telephone and the source telephone dedicated to the user of the accessed client terminal. In addition, it is possible to easily specify the caller telephone.

  According to a sixth aspect of the present invention, in the call control system according to any one of the first to fifth aspects, a telephone number of the caller telephone set designated by a user of the client terminal is registered in the gatekeeper device. If not, the WWW server transfers the call request from the client terminal to another WWW server on the network where the gatekeeper device that registers the telephone number data of the caller telephone is present. .

  According to this configuration, since the call request from the client terminal is transferred to the other WWW server on the network where the gatekeeper device that registers the telephone number data of the caller telephone exists, the other WWW server By responding to the outgoing call request, even when a large-scale network is configured by connecting a plurality of networks, the same effect as when the call control system is applied to a single network can be obtained.

  A server device according to a seventh aspect of the present invention includes a telephone directory management unit for managing telephone number data in advance, and a screen for designating the destination telephone and the source telephone using the telephone number data in the telephone directory management unit And a screen for designating the destination telephone and the source telephone in response to a request from the client terminal having a browser function, while the client terminal sends the screen of the destination telephone and the source telephone. A pseudo call between the WEB server unit that accepts a call request including a designation, and the server phone via a gatekeeper device that registers telephone number data of the caller phone and the server device in response to the call request The channel is set, and before the call channel is established, the call channel is set between the call source telephone and the call destination telephone. A configuration that includes a call control unit to perform the establishment, the.

  According to this configuration, after setting the call channel between the caller telephone and the callee telephone, call control between the caller telephone and the callee telephone specified by the user of the client terminal is performed. Since the processing is released, the call control processing between other telephones can be performed thereafter. For this reason, a plurality of call controls can be performed between telephones connected to the network.

  According to an eighth aspect of the present invention, in the server device according to the seventh aspect, the call control unit relates to the gatekeeper device when setting a call channel in a pseudo manner with the caller telephone. In FIG. 2, a configuration is adopted in which communication with the caller telephone is performed as a virtual telephone placed on the network.

  According to this configuration, since the server device communicates with the caller phone as a virtual phone in relation to the gatekeeper device, the server device does not require any special processing and is defined by the ITU-T. Communication can be processed according to the H.323 recommendation.

  According to a ninth aspect of the present invention, in the server device according to the seventh or eighth aspect, the call control unit sets the call channel in a pseudo manner with the caller telephone, and then Before the channel is established, a configuration is adopted in which information related to the destination telephone is notified to the source telephone, and a call channel is set between the source telephone and the destination telephone.

  According to this configuration, before the call channel is established between the server device and the caller telephone, information on the callee telephone is notified to the caller telephone, and in response to this notification, the caller telephone is connected to the callee telephone. Since the call channel between the caller and the caller is established, the call channel between the caller and the caller is surely set before the call channel between the server device and the caller is established. Can do.

  According to a tenth aspect of the present invention, in the server device according to any one of the seventh to ninth aspects, the WEB page creation unit designates the destination telephone dedicated to a user of the accessed client terminal. A screen is created based on the telephone number data in the telephone directory management unit, and the WEB server unit is configured to send the screen to the client terminal.

  According to this configuration, since the destination telephone can be specified from the screen for specifying the destination telephone dedicated to the user of the client terminal, the user of the client terminal only needs to have a terminal having a browser function. It is possible to easily make a call to a desired destination at an arbitrary place.

  According to an eleventh aspect of the present invention, in the server device according to any one of the seventh to tenth aspects, the telephone directory management unit stores the call history data of the user of the client terminal that has received a call request before. The WEB page creation unit creates a screen for designating the destination telephone and the source telephone dedicated to the user of the accessed client terminal based on the outgoing call history data, and the WEB server unit A configuration is adopted in which the screen is transmitted to the client terminal.

  According to this configuration, since the destination telephone and the source telephone can be designated from the screen for designating the destination telephone and the source telephone dedicated to the user of the client terminal that has accessed using the outgoing call history data, the client The user of the terminal can easily specify the destination telephone set and the source telephone set previously specified.

  According to a twelfth aspect of the present invention, in the server device according to any one of the seventh to eleventh aspects, a telephone number of the caller telephone designated by a user of the client terminal is registered in the gatekeeper device. If not, the call control unit adopts a configuration in which a call request from the client terminal is transferred to another server device on the network where the gatekeeper device in which the telephone number data of the caller telephone is registered exists. .

  According to this configuration, since the call request from the client terminal is transferred to another server device on the network where the gatekeeper device that registers the telephone number data of the caller telephone is present, the other server device By responding to the outgoing call request, even when a large-scale network is configured by connecting a plurality of networks, the same effect as when the call control system is applied to a single network can be obtained.

  In a call control method according to a thirteenth aspect of the present invention, a screen for designating a destination telephone and a source telephone is transmitted from a WWW server in response to a request from a client terminal having a browser function, and the destination is transmitted by the WWW server. A call request including designation of a telephone and a caller telephone is accepted, a call channel is set in a pseudo manner between the WWW server and the caller telephone, and the caller telephone and the caller are set before the call channel is established. A call channel is established with a destination telephone.

  According to this method, call control between the caller telephone set and the callee telephone set designated by the user of the client terminal is performed after the caller telephone set is established with the callee telephone set. Since the processing is released, the call control processing between other telephones can be performed thereafter. For this reason, a plurality of call controls can be performed between telephones connected to the network.

  According to a fourteenth aspect of the present invention, in the call control method according to the thirteenth aspect, telephone number data is registered in advance in the WWW server, and the destination telephone dedicated to a user of the client terminal that has accessed is A screen to be specified is created based on the telephone number data and sent to the client terminal.

  According to this method, since the destination telephone can be designated from the screen for designating the destination telephone dedicated to the user of the client terminal, the user of the client terminal only needs to have a terminal having a browser function. It is possible to easily make a call to a desired destination at an arbitrary place.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a diagram showing a network configuration to which a call control system according to an embodiment of the present invention is applied.

  As shown in FIG. 1, a network to which the call control system according to the present embodiment is applied includes a client terminal (hereinafter referred to as “client”) 101, a WWW server 102 as a server device, and a gatekeeper device (hereinafter referred to as “client device”). A “gatekeeper” 103, a gateway device (hereinafter “gateway”) 104, and IP telephones 105 and 106 are connected via a LAN (Local Area Network) 107.

  The client 101 is composed of, for example, a PC having a browser function, and can browse a WEB page provided by the WWW server 102 by executing the browser function. The client is not limited to the PC, and may be configured by another terminal device as long as the terminal has a browser function. For example, a mobile phone having a browser function, a PHS terminal, and a PDA (Personal Digital Assistant) can be considered.

  In response to a request from the client 101, the WWW server 102 provides the client 101 with a WEB page that constitutes a phone book screen and a caller number designation screen described later. In addition, call control processing is performed for a telephone connected to the network in accordance with the designation on the telephone directory screen or the like.

  The gatekeeper 103 registers various data such as a telephone number in the IP telephone under its management, and performs call control processing for the IP telephone. In FIG. 1, the gatekeeper 103 manages two IP telephones 105 and 106 and registers information related to these IP telephones.

  The gateway 104 registers various data such as a telephone number in the PHS terminal under its management. In addition, the communication data is converted into a radio signal and transmitted to the PHS terminal under management, and the radio signal received from the PHS terminal is converted into data that can be handled on the LAN 107. In FIG. 1, the gateway 104 manages the PHS terminals 108 and 109. The radio signal converted by the gateway 104 is transmitted to the PHS terminals 108 and 109 via the base station 110.

  FIG. 2 is a block diagram showing the configuration of the WWW server 102 of the call control system according to the present embodiment.

  As shown in FIG. 2, the WWW server 102 includes a call control unit 201, a routing unit 202, a phone book management unit 203, a WEB page creation unit 204, a WEB server unit 205, and a phone book linkage call control unit 206.

  The call control unit 201 is connected to the LAN 107, and performs call control processing of an IP telephone or PHS terminal on a designated network under the instruction of the client 101. The routing unit 202 performs routing by confirming whether an IP telephone or the like having a caller telephone number designated by the client 101 exists in another LAN when it does not exist on the connected LAN 107. In routing, the routing unit 202 uses data registered in the routing information database (DB) 207.

  FIG. 3 is a diagram illustrating an example of data registered in the routing information DB 207.

  As shown in FIG. 3, in the routing information DB 207, a caller telephone number and a URL assigned to a WWW server (hereinafter referred to as “server URL”) are registered in association with each other. In the example of FIG. 3, the caller telephone with the number on the first line is in the same network as the WWW server 102A, and the caller telephone with the number on the second line is in the same network as the WWW server 102B. The source telephone is located in the same network as the WWW server 102C. The routing unit 202 searches for the server URL according to the designated caller telephone number, and performs routing according to the server URL.

  The phone book management unit 203 manages phone book data registered in advance by the system user. Phonebook data such as telephone numbers is registered in a phonebook database (DB) 208. The phone book management unit 203 provides phone book data registered for each user of the system to the WEB page creation unit 204 using the phone book data in the phone book DB 208.

  The WEB page creation unit 204 receives provision of phone book data from the phone book management unit 203 and creates a WEB page such as a phone book screen and a caller number designation screen described later. The WEB server unit 205 is connected to the LAN 107 and accepts WEB access from the client 101. Then, in response to a request from the client 101, the WEB page created by the WEB page creation unit 204 and the WEB page of the caller number designation screen are sent to the client 101.

  The phone book linkage call control unit 206 coordinates the call control unit 201, the routing unit 202, the phone book management unit 203, the WEB page creation unit 204, and the WEB server unit 205, and calls the telephone number designated by the client 101. Realize control.

  FIG. 4 is a block diagram showing the configuration of the gatekeeper 103 of the call control system according to the present embodiment.

  As shown in FIG. 4, the gatekeeper 103 includes a CPU 401, a memory 402, a network interface 403, a data management unit 404, a call processing unit 405, and an H.264. A H.323 control unit 406;

  The CPU 401 controls the overall operation of the gatekeeper 103. The memory 402 stores a program executed by the CPU 401. The CPU 401 controls the overall operation of the gatekeeper 103 by executing a program in the memory 402. The network interface 403 takes an interface with the LAN 107. The data management unit 404 manages various data such as a telephone number and an IP address in the IP telephone 105 and the like managed by the gatekeeper 103.

  FIG. 5 is a diagram illustrating an example of various data managed by the data management unit 404.

  As shown in FIG. 5, in the data management unit 404, the IP address, name, and type are registered in association with the telephone number of an IP telephone or the like. For example, an arbitrary number of 24 digits is assigned to the telephone number. In the data management unit 404, in addition to the IP telephone, data of a device that can be a communication target to which an IP address on the network such as a gateway or a WWW server is assigned is registered.

  The call processing unit 405 performs call processing for the IP telephones 105 and 106 managed by the gateway 103 or call processing from the IP telephones 105 and 106. H. The H.323 control unit 406 is an H.323 protocol defined by the ITU-T recommendation with a device to be communicated. Control based on H.323 is performed.

  The operation in the call control system having the above configuration will be described below. FIG. 6 is a sequence diagram in the case where a call is made by designating a source telephone and a destination telephone in the client 101 in the call control system according to the present embodiment. Here, a case will be described in which IP telephone 105 is designated as the source telephone and PHS terminal 108 is designated as the destination telephone.

  In FIG. Assume that “100” is assigned to the gatekeeper 103, “101” is assigned to the IP telephone 105, and “102” is assigned to the PHS terminal 108 as the 164 address (extension number).

  When trying to make a call between IP telephone 105 and PHS terminal 108, the user of client 101 first activates a WWW browser and accesses WWW server 102 (ST601). When logging in to the call control system, identification information such as a password assigned in advance to the user is required. When accessing the WWW server 102, user identification information is notified to the WWW server 102.

  The user identification information is notified to the WEB server unit 205 of the WWW server 102 and is also notified to the telephone directory management unit 203 via the telephone directory linkage call control unit 206. The phone book management unit 203 searches the phone book DB 208 according to the user identification information, and obtains phone book data corresponding to the identification information. The phone book data is provided to the WEB page creation unit 204 via the phone book linkage call control unit 206. The web page creation unit 204 creates a phone book screen for a user who has accessed using this phone book data. The created telephone directory screen is sent to client 101 via WEB server section 205 (ST602).

  FIG. 7 is a diagram illustrating an example of a telephone directory screen transmitted from the WWW server 102 to the client 101.

  As shown in FIG. 7, information on the destination telephone registered in advance for the user by the user or the network administrator is registered in the telephone directory screen. Specifically, the department, type, telephone number, e-mail ID (e-mail address), and detailed information thereof are registered in association with the name of the destination. As the type, for example, registered as a PHS terminal, an IP telephone, or an outside line. Further, in the detailed information, for example, information such as the reading of the name of the destination is registered.

  In addition, a delete button 701 and an add button 702 are provided on the phone book screen. The delete button 701 is provided corresponding to each data, and is selected when it is desired to delete the data. When the delete button 701 is selected, the data is deleted from the user's phone book data in the phone book DB 208. The add button 702 is selected when it is desired to add new phone book data. When the add button 702 is selected, a screen for inputting the sender's name, department, type, telephone number, e-mail ID, etc. is displayed (not shown), and the input data is used in the phone book DB 208. Added to the person's phone book data.

  Further, a display switching button 703 is provided on the phone book screen. A display switching button 703 is used to switch between telephone directory data list display and past call history list display on the telephone directory screen. FIG. 7 shows the case where a list of phone book data is displayed. When the display switching button 703 is selected from the state of FIG. 7, a list of histories that the user has specified as a destination in the past is displayed.

  After this is displayed on the client 101 that has received the phone book screen, the telephone number of the call destination (hereinafter referred to as “call destination number”) is designated by the user. Here, the telephone number of the PHS terminal 108 is designated as the destination number. The designated destination number is notified to WEB server section 205 (ST603).

  Upon receiving the notification of the destination number, the WEB server unit 205 creates a screen (hereinafter referred to as “source number designation screen”) for designating the telephone number of the source (hereinafter referred to as “source number”). The created sender number designation screen is sent to client 101 via WEB server section 205 (ST604).

  FIG. 8 is a diagram illustrating an example of a caller number designation screen transmitted from the WWW server 102 to the client 101.

  As shown in FIG. 8, the sender number designation screen is provided with an input field 801 capable of switching between designation of a sender number from a call history or designation of a sender number by direct input. . The caller number designation screen is provided with a designation button 802 for designating the caller number selected in the input field and a cancel button 803 for canceling the designation of the caller number.

  After this is displayed on the client 101 that has received the caller number designation screen, the caller number is selected by the user. Here, the telephone number of IP telephone 105 is selected as the transmission source number. When the designation button 802 is selected, the source number is notified to the WWW server 102, and transmission from the source number to the destination number previously specified is requested (ST605).

  When receiving the call request, the WEB server unit 205 notifies the routing unit 202 of the caller number via the telephone directory linkage call control unit 206. Upon receiving this notification, the routing unit 202 searches for the server URL of the WWW server in which the transmission source number is registered. Here, the telephone number of the IP telephone 105 designated as the transmission source number is registered in the WWW server 102. Therefore, routing section 202 determines WWW server 102 as the corresponding WWW server (ST606). The case where the source number is in another WWW server will be described later.

  When determining the WWW server in which the transmission source number is registered, the WEB server unit 205 notifies the call control unit 201 of the transmission destination number via the telephone directory linkage control unit 206. As a result, negotiation between the WWW server 102 and the IP telephone 105 designated as the transmission source number is performed. Note that this negotiation is performed by the call control unit 201 of the WWW server 102.

  At this time, the call control unit 201 negotiates as a virtual IP telephone or the like that requests communication with the IP telephone 105. Accordingly, since the call control unit 201 can communicate with the caller telephone as a virtual IP telephone in relation to the gatekeeper 103, the H.264 specified by the ITU-T is not required. Communication can be processed according to the H.323 recommendation.

  Specifically, first, an H.264 connection between the WWW server 102 and the gatekeeper 103 is performed. The ARQ signal and the ACF signal defined in H.323 are exchanged (ST607 and 608). Next, SETUP signal and CALL PROC signal are exchanged between WWW server 102 and IP telephone 105 (ST609, 610). Further, ARQ signals and ACF signals are exchanged between the gatekeeper 103 and the IP telephone 105 (ST611, 612).

  When the processing so far is completed, the ALERT signal and the CONNECT signal are transmitted from the IP telephone 105 to the WWW server 102 (ST613, 614). When the WWW server 102 receives an incoming call to this CONNECT signal and responds to it, a call channel is set between the WWW server 102 and the IP telephone 105. However, the WWW server 102 according to the present embodiment performs pseudo-incoming only and does not actually respond.

  After actually receiving a call and before actually responding, WWW server 102 sends a Facility signal to IP phone 105 (ST615). At this time, the destination number designated by the user is notified from the WWW server 102 to the IP telephone 105. That is, the telephone number of the PHS terminal 108 is notified to the IP telephone 105. When this notification reaches the IP phone 105, negotiation between the IP phone 105 and the PHS terminal 108 is performed.

  Specifically, first, between the IP telephone 105 and the gatekeeper 103, an H.264 communication is performed. The ARQ signal and the ACF signal defined in H.323 are exchanged (ST616, 617). Next, SETUP signal and CALL PROC signal are exchanged between IP telephone 105 and PHS terminal 108 (ST618, 619). Furthermore, ARQ signals and ACF signals are exchanged between the gatekeeper 103 and the PHS terminal 108 (ST620, 621).

  When the processing so far is completed, the ALERT signal and the CONNECT signal are transmitted from the PHS terminal 108 to the IP telephone 105 (ST622, 623). When the IP telephone 105 receives and responds to this CONNECT signal, a call channel is set between the IP telephone 105 and the PHS terminal 108, and a call can be made between the IP telephone 105 and the PHS terminal 108. (ST624).

  In this way, the telephone number of the PHS terminal 108 is notified to the IP telephone 105 before the communication channel between the WWW server 102 and the IP telephone 105 is established, and the IP telephone 105 communicates with the PHS terminal 108 in response to this notification. Therefore, the call channel between the IP telephone 105 and the PHS terminal 108 can be surely set before the call channel between the WWW server 102 and the IP telephone 105 is established. .

  Here, a case where a single call between IP telephone 105 and PHS terminal 108 is controlled has been described. However, according to the call control system according to the present embodiment, a plurality of telephones between other telephones can be controlled. Can also be controlled. In other words, after sending the facility signal to the originating IP telephone 105 in ST615, the WWW server 102 is released from the call control processing between the IP telephone 105 and the PHS terminal 108, and thereafter, between other telephones. Call control processing can be performed.

  As described above, according to the call control system according to the present embodiment, the call control between the caller telephone and the callee telephone is performed according to the designation from the client 101, and the caller telephone and the caller specified separately are further transmitted. Call control with a destination telephone can be performed. For this reason, a plurality of call controls can be performed between telephones connected to the network.

  Further, in the call control system according to the present embodiment, the WEB server unit 205 of the WWW server 102 sends a user phone book screen in response to a request from the client 101, and the user can The destination number can be specified. For this reason, as long as the user has a terminal having a browser function, the user can easily make a call to a desired destination at an arbitrary place.

  Furthermore, in the call control system according to the present embodiment, a telephone directory screen and a caller number designation screen are transmitted, and a callee telephone set and a caller telephone set designated in the past can be designated on these screens. . For this reason, the user can easily specify the destination telephone set and the source telephone set previously specified.

  In the above description, a case is described in which a telephone call is made between the IP telephone 105 connected to the LAN 107 and the PHS terminal 108. However, a caller telephone in the LAN 107 can call a telephone outside the LAN 107. Similarly, when making a call, the effect of the call control system according to the present embodiment can be obtained.

  Next, a case where the call control system according to the present embodiment is applied to a plurality of networks will be described.

  FIG. 9 is a diagram showing a network configuration when the call control system according to the present embodiment is applied to a plurality of networks. FIG. 9 shows a case where networks A to C to which the call control system shown in FIG. 1 is applied are connected via an intranet.

  In FIG. 9, it is assumed that network A is the main network and networks B and C are sub-networks. The difference between the main network and the sub-network is whether or not the WWW server 102 has the routing unit 202 and the routing information DB 207. That is, the WWW server 102A of the network A has the routing unit 202 and the like, whereas the networks B and C do not have the routing unit 202 and the like. Since the configuration other than the WWW server 102 is the same as that of FIG. 1, the description thereof is omitted.

  The operation in the call control system having the above configuration will be described below. FIG. 10 is a sequence diagram in the case where a call is performed by designating a source telephone and a destination telephone in the client 101B in the call control system according to the present embodiment. Here, a case will be described in which IP telephone 105B is designated as the source telephone and PHS terminal 108C is designated as the destination telephone.

  When any of the client terminals designates the source telephone and the destination telephone, the client terminal is set to access the WWW server 102A that is the WWW server of the main network.

  In FIG. 10, the processing from the access to the WWW server 102A by the client 101B to the designation of the transmission source number and the transmission destination number and the transmission request is the same as that described in FIG. 6 (ST601 to ST605). Here, the telephone number of IP telephone 105B is designated as the transmission source number, and the telephone number of PHS terminal 108C is designated as the transmission destination number.

  When receiving the call request, the WEB server unit 205A of the WWW server 102A notifies the routing unit 202 of the caller number via the telephone directory linkage call control unit 206A. Upon receiving this notification, the routing unit 202 searches the routing information DB of FIG. 3 for the server URL of the WWW server in which the transmission source number is registered. The telephone number of IP telephone 105B designated as the transmission source number is associated with the server URL of WWW server 102B. For this reason, the routing unit 202 determines the WWW server 102B as the corresponding WWW server (ST1001), and thereafter transfers the access from the client 101B to the server URL of the WWW server 102B.

  Accordingly, the call control unit 201A of the WWW server 102A transfers the call request from the client 101B to the WWW server 102B (ST1002).

  When the transmission request reaches the WWW server 102B, negotiation is performed between the WWW server 102B and the IP telephone 105B that is the transmission source telephone. Furthermore, negotiation is performed between IP telephone 105B as a caller telephone and PHS terminal 108C as a callee telephone. As a result, a call channel between IP telephone 105B and PHS terminal 108C is set and a call is made (ST607 to ST624). In addition, since the process of ST607-ST624 is the same as that of what was demonstrated in FIG. 6, the description is abbreviate | omitted in FIG.

  Even when a large-scale network is configured by connecting a plurality of networks as described above, the call control system according to the present embodiment can be applied. For this reason, even in a large-scale network, the same effect as when the call control system is applied to a single network can be obtained. That is, it is possible to perform a plurality of call controls between telephones connected to a large-scale network or a plurality of call controls from a telephone connected to the network to a telephone outside the network.

  In the present embodiment, an IP telephone or a PHS terminal connected to the LAN 107 is described as an example, but the present invention is not limited to this. In other words, the present invention can also be applied to call control processing of a cellular phone or an Internet facsimile machine connected to the LAN 107 via an adapter that performs signal processing so that it can be managed on the LAN 107.

  Further, as will be apparent to those skilled in the art, the present invention can be implemented using a general commercially available digital computer and microprocessor programmed according to the technique described in the above embodiment. Further, as will be apparent to those skilled in the art, the present invention includes a computer program created by a person skilled in the art based on the technique described in the above embodiment.

  Also included within the scope of the invention are computer program products that are storage media containing instructions that can be used to program a computer that implements the invention. This storage medium is a disk such as a floppy (R) disk, an optical disk, a CDROM and a magnetic disk, a ROM, a RAM, an EPROM, an EEPROM, a magnetic optical card, a memory card, a DVD, etc., but is not particularly limited thereto. Absent.

  The mobile phone according to the present invention is useful in that a plurality of call controls can be performed between phones connected to a network.

The figure which shows the structure of the network with which the call control system which concerns on one embodiment of this invention is applied. The block diagram which shows the structure of the WWW server of the call control system which concerns on the said embodiment. The figure which shows an example of the data registered into routing information DB in the WWW server of the call control system which concerns on the said embodiment. The block diagram which shows the structure of the gatekeeper of the call control system which concerns on the said embodiment The figure which shows an example of the various data managed by the data management part in the gatekeeper of the call control system which concerns on the said embodiment. In the call control system according to the above-described embodiment, a sequence diagram in a case where a call is made by designating a source telephone and a destination telephone by a client The figure which shows an example of the telephone directory screen sent to a client from a WWW server in the call control system which concerns on the said embodiment. The figure which shows an example of the sender number designation | designated screen sent to a client from a WWW server in the call control system which concerns on the said embodiment. The figure which shows the structure of a network at the time of applying the call control system which concerns on the said embodiment to several networks. In the call control system according to the above-described embodiment, a sequence diagram in a case where a call is made by designating a source telephone and a destination telephone by a client

Explanation of symbols

101 Client terminal (client)
102 WWW server 103 Gatekeeper device (gatekeeper)
104 Gateway device (gateway)
105, 106 IP phone 107 LAN (Local Area Network)
108, 109 PHS terminal 110 Base station 201 Call control unit 202 Routing unit 203 Phonebook management unit 204 WEB page creation unit 205 WEB server unit 206 Phonebook linkage call control unit 207 Routing information database (DB)
208 Phonebook database (DB)
401 CPU
402 Memory 403 Network interface 404 Data management unit 405 Call processing unit 406 323 control unit

Claims (14)

A client terminal having a WWW browser function, a WWW server for sending a screen for designating a destination telephone and a source telephone to the client terminal, and a gatekeeper device for registering telephone number data of the WWW server and the source telephone When, a call control system comprising a said when the client terminal receives a call request including a designation of the destination telephone set, and the source telephone, the originating the WWW server and the WWW server via the gate keeper device It is characterized in that a call channel is set in a pseudo manner with an original telephone, and the call origination telephone is established with the call destination telephone before the call channel is established. Call control system. The WWW server is, when setting the pseudo-communication channel between said source telephone, the relative gate keeper device operates as a virtual phone that is arranged on a network, the communication with the originating telephone The call control system according to claim 1, wherein the call control system performs the call control.   The WWW server, after performing a pseudo call channel setting with the caller phone, before notifying the caller channel before notifying the caller phone of information about the callee phone, The call control system according to claim 1 or 2, wherein the call source telephone sets a call channel with the call destination telephone according to the information.   The WWW server pre-registers the telephone number data of the destination telephone, creates a screen for designating the destination telephone dedicated to the user of the client terminal that has accessed, based on the telephone number data, The call control system according to any one of claims 1 to 3, wherein the call control system sends the message to a terminal.   The WWW server stores the call history data of the user of the client terminal that has previously accepted the call request, and displays a screen for designating the destination telephone and the caller telephone dedicated to the user of the client terminal that has accessed. The call control system according to any one of claims 1 to 4, wherein the call control system is created based on the outgoing call history data and sent to the client terminal.   When the telephone number of the caller telephone designated by the user of the client terminal is not registered in the gatekeeper apparatus, the WWW server has a gatekeeper apparatus that registers the telephone number data of the caller telephone 6. The call control system according to claim 1, wherein a call request from the client terminal is transferred to another WWW server on the network to be operated. A phone book management unit for managing telephone number data in advance, a WEB page creation unit for creating a screen for designating the destination telephone and the source telephone using the telephone number data in the telephone book management unit, and a browser function A web server unit that sends a screen for designating the destination telephone and the source telephone in response to a request from the client terminal, and accepts a transmission request including designation of the destination telephone and the source telephone from the client terminal; to set the pseudo-communication channel between the server device and said source telephone of the telephone number the server apparatus via a gatekeeper device for registering data and said source telephone according to the calling request, the call channel A call system that establishes a call channel with the callee telephone before the call is established Server apparatus characterized by comprising a part, the. The call control unit, when setting the pseudo-communication channel between said source telephone, the relative gate keeper device and call connection as a virtual phone that is arranged on a network, with the source telephone 8. The server device according to claim 7, wherein communication is performed.   The call control unit, after performing a pseudo call channel setting with the caller telephone, notifies the caller telephone of information related to the callee telephone before the call channel is established. 9. The server device according to claim 7, wherein a call channel is set between the caller telephone and the callee telephone.   The WEB page creation unit creates a screen for designating the destination telephone dedicated to the user of the accessed client terminal based on the telephone number data in the telephone directory management unit, and the WEB server unit The server device according to claim 7, wherein the server device is transmitted to the client terminal.   The telephone directory management unit stores transmission history data of a user of the client terminal that has previously received a transmission request, and the WEB page creation unit stores the destination telephone dedicated to the user of the client terminal that has accessed 11. A screen for designating a caller telephone and a caller telephone set are created based on the call history data, and the WEB server unit sends the screen to the client terminal. The server apparatus of description.   When the telephone number of the caller telephone set designated by the user of the client terminal is not registered in the gatekeeper device, the call control unit is configured such that the gatekeeper device that registers the telephone number data of the caller telephone set is 12. The server apparatus according to claim 7, wherein a call request from the client terminal is transferred to another server apparatus on an existing network.   Sending a screen for designating a destination telephone and a source telephone from a WWW server in response to a request from a client terminal having a browser function, and accepting a transmission request including designation of the destination telephone and the source telephone at the WWW server; A pseudo call channel is set between the WWW server and the caller telephone, and a call channel is established between the caller telephone and the callee telephone before the call channel is established. A call control method characterized by the above.   The telephone number data is registered in advance in the WWW server, and a screen for designating the destination telephone dedicated to the user of the accessed client terminal is created based on the telephone number data and transmitted to the client terminal The call control method according to claim 13.

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