JP2009296064A - Call control system and method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve user's convenience in a call control system where voice call is achieved by bridging a session with the call source and a session with the call destination which are established separately. <P>SOLUTION: A call control system includes a section for receiving a connection request from a user of call source to a user of call destination, a plurality of communication terminals, a destination calling section for establishing a voice call session with the destination by calling the telephone terminal of a user at the destination from any one communication terminal, a source calling section for establishing a voice call session with the source by calling the telephone terminal of a user at the source from any one communication terminal after establishing a voice call session with the destination, and a bridging section for achieving voice call between the telephone terminal of a user at the source and the telephone terminal of a user at the destination by bridging the voice call session with the destination and the voice call session with the source. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a call control system and a call control method for providing various voice communication modes to a caller user and a callee user.

  In recent years, so-called Internet telephones via an IP network are becoming widespread. The Internet telephone can use a low-cost communication network and can provide various services applying the freedom of the IP network. In Patent Document 1, a session via the IP network is mutually established from an IP call control server that performs call control of a terminal in the IP network in response to a connection request from the calling user to the called user via the IP network. Services to be disclosed are disclosed.

  More specifically, in the technique disclosed in Patent Document 1, when a connection request is first received from the caller user's operation terminal, a call request to the caller user's telephone terminal described in the connection request is issued. A first session is established between the IP call control server and the first telephone terminal, and a call request is made to the telephone terminal of the callee user. The IP call control server and the second telephone A second session is established with the terminal. Then, by bridging the first session and the second session, a voice call between the first telephone terminal and the second telephone terminal is possible via the first session and the second session. It is said.

According to such a call control method described in Patent Document 1, it is possible to easily and safely perform telephone communication with a target call destination on an information screen acquired via a communication line network.
JP 2006-33448 A

  In putting the call control method as described above in Patent Document 1 into practical use, there is a demand for diversifying services and improving user convenience. For example, when a call is received from a server to a call destination telephone terminal, the call destination may not always be able to respond for reasons such as the user of the call destination noticing or being unable to take their hands off.

  Also, even if you come up with a call, if you can't make a call at that time, such as when you need to make a call in the future, make sure you can make that call The convenience of the caller is improved. In addition, when an incoming call is received at the destination phone terminal, if the destination can know the priority of the call, it can be immediately determined whether or not it will be handled, improving convenience for the user at the destination. Will do.

  The present invention has been made in view of such circumstances, and overturns the fixed concept that when a call is made, the user must immediately operate at that time and the callee must be able to answer the call. The purpose is to be able to schedule time freely, thereby increasing the variety of services and improving user convenience.

In order to solve the above problems, the present invention is a call control system for performing a connection for a call from a caller user to a callee user,
A connection request from the caller user to the callee user, the connection request including the phone number of the phone terminal of the caller user and the phone number of the second user phone terminal, A connection request receiving unit that receives from the information terminal device of the former user;
A call destination calling unit for calling the telephone terminal of the call destination user and establishing a call destination voice call session with the phone terminal of the call destination user;
After the establishment of the callee voice call session, a caller calling unit that makes a call to the caller user's phone terminal and establishes a caller voice call session with the caller user's phone terminal;
A bridge processing unit for realizing a voice call between the caller user's telephone terminal and the callee user's telephone terminal by bridging the callee voice call session and the caller voice call session; It is characterized by providing.

Further, another invention is a call control method for performing a connection for a call from a caller user to a callee user,
(1) A connection request from the caller user to the callee user, the connection request including a telephone number of the telephone terminal of the caller user and a telephone number of the second user's telephone terminal. Receiving from the caller user's information terminal device (2) making a call to the callee user's telephone terminal and establishing a callee voice call session with the callee user's telephone terminal (3) After the establishment of the callee voice call session, a call is made to the caller user's telephone terminal to establish a caller voice call session with the caller user's phone terminal. Establish a voice call between the caller user's phone terminal and the callee user's phone terminal by bridging the session and the caller voice call session And characterized in that.

  According to the present invention, when a caller user who is a caller makes a call request, a callee calling unit establishes a callee voice call session with a callee user who is a callee, A caller voice call session is established, and the bridge processing unit bridges both voice call sessions. Accordingly, it is possible to prevent the caller user who has responded to the incoming call from the call control system from continuing to wait for the response of the callee user while the session is established. This improves the convenience of the call control system for the caller user.

  In the above invention, the connection request includes a call reservation time for starting call processing for the callee user, and at the call reservation time when the callee call is made, the call request is made to the telephone terminal of the callee user. It is preferable to execute the outgoing call and establish a callee voice call session with the callee user's telephone terminal.

  In this case, when the caller user who is the caller makes a call request with a call reservation that specifies the date and time, the callee call and the caller call are individually sent to the caller user and the callee user at the reserved date and time. Make a call. When each voice call session is established, the bridge processing unit bridges both voice call sessions. Therefore, when the caller user needs to call the callee in the future, the call can be made without forgetting. This improves the convenience of the call control system for the caller user.

  In the above invention, the connection request includes designation of a priority level of call processing for the callee user, and makes a call through a plurality of communication terminals each assigned a telephone number, In accordance with the correspondence relationship between the priority and the telephone number, the communication terminal assigned with the telephone number corresponding to the designated priority is called to the telephone terminal of the called user, and the communication terminal It is preferable to establish a call destination voice call session with the call destination user's telephone terminal.

  In this case, since the call originates from the telephone number corresponding to the priority specified by the caller user who is the call originator, the callee user who is the callee calls from which telephone number when the call is received By confirming whether it is, it is possible to know the importance of the call related to the incoming call. Therefore, it is possible to determine whether or not to respond immediately to the incoming call, and the convenience of the call control system is improved for the callee user.

  According to the present invention, in a call control system that realizes a voice call between a communication source and a call destination by bridging a session with a call source established separately from each other and a session with a call destination, the time for making a call The purpose is to improve the convenience of users by providing a variety of services.

  Embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram showing a configuration of a network system including a call service system 10 to which the present invention is applied. As shown in the figure, the call service system 10 includes an application server 100 and a call service server 200, is connected to an IP network 70, and is connected to a general public line / mobile communication network via a gateway 90. 80.

  Here, the IP network 70 is a network that transmits information using an Internet protocol, and can typically be the Internet. The general public line / mobile communication network 80 is a general term for telephone lines for voice calls such as fixed telephones and mobile communication. The gateway 90 performs a process of mutually converting data formats, protocols, etc. in order to enable mutual communication between the IP network 70 and the general public line / mobile communication network 80.

  In the example of this figure, the case where the caller user A makes a call with the callee user B using the service provided by the call service system 10 is shown. The calling user A uses a terminal device 20b having an IP network connection function and a Web browser function and a telephone 20a having a general public line / mobile communication network connection function. In this example, the caller user A uses the terminal device 20b and the telephone 20a. It is assumed that a mobile phone 20 having both functions is used. That is, the mobile phone 20 has a function of accessing a Web page via the IP network 70 in addition to a mobile communication telephone function. The called user B uses a telephone 30 having a general public line / mobile communication network connection function. The telephone 30 may be a fixed telephone or a mobile telephone.

  FIG. 2 is a block diagram illustrating functional configurations of the application server 100 and the call service server 200 included in the call service system 10. As shown in the figure, the application server 100 includes a Web function unit 110 connected to the IP network 70, an application unit 120 that functions as a back end of the Web function unit 110, and a user information storage unit 130.

  The web function unit 110 is a function unit that performs web front processing, and can be configured by a web server, for example. As this Web server, a server computer for transmitting information such as HTML (HyperText Markup Language) files, image files, music files, etc. in a document system such as WWW (World Wide Web) or software having the function is adopted. Information such as HTML documents and images is stored, and the information is transmitted through the IP network 70 in response to a request from client software such as a Web browser.

  In this embodiment, the Web function unit 110 is a connection request from the caller user A to the callee user B, and is information for specifying the telephone number of the mobile phone 20 of the caller user A. And a function as a connection request receiving unit that receives a connection request including information for specifying the telephone number of the telephone 30 of the called user B from the terminal device 20b of the calling user A via the IP network 70 It also has.

  Such a connection request can be made, for example, on a Web page that the Web function unit 110 displays on the mobile phone 20. In the present embodiment, the telephone number of the mobile phone 20 of the caller user A and the telephone number of the telephone 30 of the callee user B are stored in the user information storage unit 130. The user can make a connection request to the called user B without inputting the telephone number of the telephone 30 of the called user B simply by selecting the called user B. In addition, the connection request can include call reservation time or priority information as necessary.

  The application unit 120 requests the call service server 200 to perform call connection processing between the caller user A and the callee user B in response to a connection request from the caller user A received by the Web function unit 110. Specifically, the telephone number of the mobile phone 20 of the caller user A and the phone number of the telephone 30 of the callee user B are identified from the information included in the connection request from the caller user A, and the call service The server 200 is notified.

  The application unit 120 includes a reserved call processing unit 121 and a priority processing unit 122. The reserved call processing unit 121 will be described in the second embodiment, and the priority processing unit 122 will be described in the third embodiment.

  The user information storage unit 130 is a database configured on a non-volatile storage device, and stores information regarding users who can receive services provided by the call service system 10. In the present embodiment, for example, the identification information of the caller user A, the telephone number of the telephone 20a of the caller user A, the identification information of the mobile phone 20 of the caller user A, the user who can be designated as the communication destination by the caller user A Memorize the list. The list of users that can be specified as the communication destination includes the call destination user B, and further, the telephone number of the telephone 30 of the call destination user B is associated with the list.

  The call service server 200 includes an interface unit 210, a call control unit 220, and a plurality of communication terminals 230. The interface unit 210 performs an interface process with the application server 100, receives the telephone number of the call source telephone and the telephone number of the call destination telephone, and performs a process of notifying the call control unit 220.

  The call control unit 220 includes a caller calling unit 221, a callee calling unit 222, and a bridge processing unit 223, and the telephone number of the caller telephone and the telephone number of the callee telephone notified from the interface unit 210. According to the above, a voice call is realized between the caller telephone and the callee telephone. The call control unit 220 can perform call control by software processing, for example.

  The calling party calling unit 221 calls the calling user's telephone from one of the communication terminals 230, and establishes a called voice call session between the communication terminal 230 and the calling user's telephone. To perform the process.

  Call destination calling unit 222 calls the caller's user's telephone from one of communication terminals 230 and establishes a callee voice call session between communication terminal 230 and the caller's user's telephone. Process. In the first embodiment, a call to the telephone of the caller user is made after the callee voice call session is established.

  The bridge processing unit 223 realizes a voice call between the caller user telephone and the callee user telephone by bridging the callee voice call session and the caller voice call session established separately. Perform the process.

  The communication terminal 230 is composed of a plurality of terminals UA1, UA2, UA3... UAn, and a telephone number is assigned to each terminal. In this example, it is assumed that telephone number 1, telephone number 2, telephone number 3... Telephone number n are assigned to UA1, UA2, UA3. In the present embodiment, the mobile phone 20 of the caller user A and the telephone 30 of the callee user B each establish a call session at one of the communication terminals 230.

  For this reason, the telephone number of the calling party user A is the telephone number assigned to the communication terminal 230 in which the calling party call session is established, and the calling party user B's calling party telephone number is the destination call. This is the telephone number assigned to the communication terminal 230 where the session is established. That is, the caller user A and the callee user B can make a call without being aware or recognizing the other party's telephone number. In other words, the caller user A and the callee user B can make a call without knowing their own telephone numbers.

(First embodiment)
Hereinafter, call control of the call service system 10 in the present embodiment will be described. First, the first embodiment will be described. FIG. 3 is a flowchart for explaining call control of the call service system 10 in the first embodiment. In the following embodiment, the caller user A requests a call with the callee user B to the call service system 10 using the mobile phone 20 having both the function of the terminal device 20b and the function of the telephone 20a. As an example, call control of the call service system 10 will be described.

  This process starts when the Web function unit 110 of the call service system 10 accepts access from the mobile phone 20 of the caller user A (S101). That is, it is assumed that the caller user A already knows the address of the Web page provided by the Web function unit 110.

  When accepting access from the mobile phone 20 of the caller user A, the application unit 120 identifies the caller user A (S102). The caller user A can be specified, for example, by referring to the user information storage unit 130 using the identification information of the mobile phone 20 received at the time of access. Alternatively, the caller user A may be specified by performing an authentication process on the Web page and receiving input of identification information from the caller user A. By specifying caller user A, the telephone number of mobile phone 20 of caller user A can also be specified.

  When the caller user A is specified, the application unit 120 refers to the user information storage unit 130 to create a list of callees that can be called by the caller user A. It is displayed on the mobile phone 20 of the former user A (S103).

  FIG. 4 shows an example of a destination list display screen 25 that displays a destination list. On the call destination list display screen 25, the call destination list display field 25a displays the user B, user C, user D, and user E, which are call destinations obtained by referring to the user information storage unit 130, in a selectable state. Is done. Note that it is not necessary to display the telephone numbers of the user B, the user C, the user D, and the user E in the call destination list display field 25a.

  When the designation of the user B as the call destination is received from the call source user A (S104), the application unit 120 refers to the user information storage unit 130 and acquires the phone number of the telephone 30 of the call destination user B (S105). ). Then, the call service server 200 is notified of the telephone number of the mobile phone 20 of the caller user A as caller information, and is notified of the telephone number of the telephone 30 of the callee user B as callee information. Make a request.

  In the call service server 200 that has received the call control request, first, the call destination calling unit 222 sets one of the communication terminals 230 (for the telephone number of the telephone 30 of the call destination user B notified as the call destination information). Hereinafter, a call is made from the “call destination terminal” (S106).

  When the telephone 30 of the callee user B responds to this call, a callee voice call session is established between the callee terminal and the telephone 30 of the callee user B (S107).

  Then, the caller calling unit 221 confirms that the callee voice call session has been established, and performs any communication with the telephone number of the mobile phone 20 of the caller user A notified as the caller information. A call is made from the service terminal 230 (hereinafter referred to as “caller terminal”) (S108).

  When the mobile phone 20 of the caller user A responds to this call, a caller voice call session is established between the caller terminal and the mobile phone 20 of the caller user A (S109).

  When the caller voice call session is established, the bridge processing unit 223 bridges the callee voice call session and the caller voice call session (S110). As a result, a voice call can be performed between the mobile phone 20 of the caller user A and the telephone 30 of the callee user B.

  As described above, in the first embodiment, when the caller user A makes a call request, after the callee voice call session with the callee user B is established, the caller voice call session with the caller user A is established. The two voice call sessions are bridged. Accordingly, it is possible to prevent caller user A who has responded to an incoming call from call service server 200 from waiting for a response from callee user B in a session established state. As a result, the convenience of the call service system 10 is improved for the calling user A.

  FIG. 5 is a diagram schematically showing the flow of processing in the first embodiment. As shown in this figure, a call request to the callee user B is sent from the mobile phone 20 of the caller user A to the call service system 10 via the IP network 70. In response to this call request, the call service system 10 first makes a call to the telephone 30 of the callee user B via the general public line / mobile communication network 80. When a call destination voice call session is established between the call service system 10 and the telephone 30 of the callee user B, the caller user A's mobile phone 20 is connected via the general public line / mobile communication network 80. Make a call. When a caller voice call session is established between the call service system 10 and the mobile phone 20 of the caller user A, the call service system 10 bridges the callee voice call session and the caller voice call session. As a result, the caller user A can make a voice call between the caller user A's mobile phone 20 and the callee user B's telephone 30 without waiting for the caller voice call session to be established. .

  As a result of calling from the communication terminal 230 to the telephone number of the telephone 30 of the callee user B in the process (S106), the callee voice session is established due to the non-response of the callee user B or the like. If the call cannot be made, it is desirable to notify the caller user A's mobile phone 20 to that effect. As a result, it is possible to prevent caller user A from waiting for incoming calls.

  Alternatively, some or all of the functions of the application server 100 may be converted into an application and installed in the mobile phone 20. In this case, part or all of the processing performed by the application server 100 is performed on the mobile phone 20, and the call service server 200 receives the processing result from the mobile phone 20 to perform the same call control processing as described above. be able to.

(Second embodiment)
Next, a second embodiment of the call control of the call service system 10 will be described. FIG. 6 is a flowchart for explaining call control of the call service system 10 in the second embodiment. In the second embodiment, the caller user A can make a reservation for the time to make a call.

  Also in the second embodiment, an example in which the caller user A requests the call service system 10 to make a call with the callee user B using the mobile phone 20 having both the function of the terminal device 20b and the function of the telephone 20a. Next, call control of the call service system 10 will be described. However, the description of the processes common to the first embodiment will be simplified.

  This process starts when the Web function unit 110 of the call service system 10 accepts access from the mobile phone 20 of the caller user A (S201). Upon receiving access from the mobile phone 20 of the caller user A, the application unit 120 identifies the caller user A (S202). When the caller user A is specified, the application unit 120 refers to the user information storage unit 130 to create a list of callees that can be called by the caller user A. It is displayed on the mobile phone 20 of the former user A (S203).

  FIG. 7 shows an example of a destination list display screen 26 that displays a destination list. On the call destination list display screen 26, the call destination list display field 26a displays the user B, user C, user D, and user E, which are call destinations obtained by referring to the user information storage unit 130, in a selectable state. Is done.

  The call destination list display screen 26 is further provided with a call reservation designation area 26b, which is either “call execution” for executing a call immediately or “call reservation” for executing a call at a reserved time. Can be selected. The caller user A selects “call reservation” when he / she wants to make a call reservation, and inputs the date / time at which he / she wants to make a call in the date / time input field provided in the call reservation designation area 26b.

  When the application unit 120 accepts designation of the user B as the call destination from the caller user A (S204), the application unit 120 refers to the user information storage unit 130 and acquires the telephone number of the telephone 30 of the callee user B (S205). ).

  Then, it is determined whether there is a call reservation designation (S206). When the call reservation is not specified (S206: No), that is, when “call execution” is selected, the mobile phone 20 of the caller user A is immediately sent to the call service server 200 as caller information. The telephone number of the telephone 30 of the callee user B is notified as callee information, and a call control request is made.

  On the other hand, when a call reservation is specified (S206: Yes), that is, when "call reservation" is selected and the date and time are input, the reserved call processing unit 121 stores the specified reservation date and time, Wait until the reservation date and time is reached (S207). That is, the reserved call processing unit 121 incorporates a clock, a timer, and the like, and has a function of managing the date and time. When the reservation date / time is reached (S207: Yes), the call service server 200 is notified of the telephone number of the mobile phone 20 of the caller user A as caller information, and the telephone 30 of the callee user B as callee information. The telephone number is notified and a call control request is made.

  When there is no designation of call reservation (S205: No), or there is designation of call reservation (S205: Yes), and when the designated reservation date and time is reached (S206: Yes), the mobile phone of the calling user A The caller voice session is established with the telephone 20 (S210 to S211), and the callee voice session is established with the telephone 30 of the callee user B (S208 to S209).

  Unlike the first embodiment, either of these voice session establishment processes may be performed first, and may be performed in parallel. That is, a call can be made to the mobile phone 20 of the caller user A without confirming the establishment of the callee voice session with the telephone 30 of the callee user B.

  When the caller voice call session and the callee voice session are established, the bridge processing unit 223 bridges the callee voice call session and the caller voice call session (S212). As a result, a voice call can be performed between the mobile phone 20 of the caller user A and the telephone 30 of the callee user B.

  As described above, in the second embodiment, when the caller user A makes a call request based on a call reservation specifying the date and time, the caller user A's mobile phone 20 and the callee user B's telephone 30 are individually assigned at the reserved date and time. A call is made. When each voice call session is established, both voice call sessions are bridged. Therefore, when the caller user A needs to make a call to the callee in the future, the call can be made without forgetting. As a result, the convenience of the call service system 10 is improved for the calling user A.

  FIG. 8 is a diagram schematically showing the flow of processing in the second embodiment. As shown in this figure, a reserved call request specifying the date and time to the callee user B is sent from the mobile phone 20 of the caller user A to the call service system 10 via the IP network 70. In response to the reservation call request, the call service system 10 makes a call to the mobile phone 20 of the caller user A and the telephone 30 of the callee user B via the general public line / mobile communication network 80 at the reserved date and time. Make a call. Then, a callee voice call session is established between the call service system 10 and the telephone 30 of the callee user B, and a caller voice call session is established between the call service system 10 and the mobile phone 20 of the caller user A. When established, the call service system 10 bridges the callee voice call session and the caller voice call session. As a result, a voice call can be made between the mobile phone 20 of the caller user A and the telephone 30 of the callee user B at the date and time reserved by the caller user A.

  Note that some or all of the functions of the application server 100 may be converted into applications and installed in the mobile phone 20. In this case, part or all of the processing performed by the application server 100 is performed on the mobile phone 20, and the call service server 200 receives the processing result from the mobile phone 20 to perform the same call control processing as described above. be able to.

(Third embodiment)
Next, a third embodiment of call control of the call service system 10 will be described. FIG. 9 is a flowchart for explaining call control of the call service system 10 in the third embodiment. In the third embodiment, the caller user A can set the call priority and notify the callee user B.

  Here, the priority can be set to “important”, “normal”, or “reply unnecessary”. As shown in FIG. 2, a telephone number is assigned to each terminal of the communication terminal 230. In the present embodiment, the assigned telephone number is associated with the priority in advance. For example, the telephone number 1 of the telephone terminal UA1 is associated with “important”, the telephone number 2 of the telephone terminal UA2 is associated with “normal”, and the telephone number 3 of the telephone terminal UA3 is associated with “no reply”. Let's correspond. This correspondence relationship is stored in the priority processing unit 122 and is also notified to the call destination user B. In the case where the telephone 30 of the called user B has a so-called address book function capable of registering the telephone number and the name in association with each other, there is also a corresponding relationship with the address book of the telephone 30 of the called user B. It is desirable to memorize it.

  Also in the third embodiment, a case where the caller user A requests the call service system 10 to make a call with the callee user B using the mobile phone 20 having both the function of the terminal device 20b and the function of the telephone 20a. Next, call control of the call service system 10 will be described. However, the description of processes common to the first and second embodiments will be simplified.

  This process starts when the Web function unit 110 of the call service system 10 receives access from the mobile phone 20 of the caller user A (S301). Upon receiving access from the mobile phone 20 of the caller user A, the application unit 120 identifies the caller user A (S302). When the caller user A is specified, the application unit 120 refers to the user information storage unit 130 to create a list of callees that can be called by the caller user A. It is displayed on the mobile phone 20 of the former user A (S303).

  FIG. 10 shows an example of a destination list display screen 27 that displays a destination list. On the call destination list display screen 27, the call destination list display field 27a displays the user B, user C, user D, and user E, which are call destinations obtained by referring to the user information storage unit 130, in a selectable state. Is done.

  The callee list display screen 27 is further provided with a priority designation area 27b so that “important”, “normal”, and “reply unnecessary” with low priority can be selected. ing. In this example, “normal” is selected as the initial state. The caller user A selects “important” when he / she wants to indicate to the callee user B that the call has a high priority, and he / she wants to indicate to the callee user B that the call has a low priority. Select “Reply not required”.

  When the application unit 120 receives the designation of the user B as the call destination from the caller user A (S304), the application unit 120 refers to the user information storage unit 130 and acquires the telephone number of the telephone 30 of the callee user B (S305). ).

  Then, the priority processing unit 122 sets a telephone number corresponding to the priority selected by the caller user A (S306). In this example, when “important” is selected, the telephone number 1 of the telephone terminal UA1 is set, and when “normal” is selected, the telephone number 2 of the telephone terminal UA2 is set. If “reply unnecessary” is selected, the telephone number 3 of the call terminal UA3 is set.

  When the telephone number corresponding to the priority is set, the application unit 120 notifies the call service server 200 of the telephone number of the mobile phone 20 of the caller user A as caller information, and the callee user as callee information. The telephone number of the B telephone 30 is notified, the telephone number set as the calling telephone number information is notified, and a call control request is made.

  In response to the call control request, the call service server 200 establishes a caller voice session with the mobile phone 20 of the caller user A (S309 to S310) and establishes a callee voice session with the telephone 30 of the callee user B ( S307 to S308). Unlike the first embodiment, either of these voice session establishment processes may be performed first, and may be performed in parallel. That is, a call can be made to the mobile phone 20 of the caller user A without confirming the establishment of the callee voice session with the telephone 30 of the callee user B.

  However, in the establishment of a callee voice session with the telephone 30 of the callee user B (S307 to S308), the call (S307) to the callee 30 of the callee user B is the telephone number set in the process (S306). The communication is performed from the assigned communication terminal 230.

  As a result, the called user B can know the importance level of the call related to the incoming call by confirming from which telephone number the call originates at the time of the incoming call. Therefore, it can be determined whether or not the incoming call is immediately handled, and the convenience of the user of the call destination is improved. At this time, if the correspondence relationship between the priority and the telephone number is registered in the address book of the telephone 30 of the called user B, the priority is not a telephone number but “important”, “normal”, “reply unnecessary” ", The convenience is further improved.

  When the caller voice call session and the callee voice session are established, the bridge processing unit 223 bridges the callee voice call session and the caller voice call session (S311). As a result, a voice call can be performed between the mobile phone 20 of the caller user A and the telephone 30 of the callee user B.

  FIG. 11 is a diagram schematically showing the flow of processing in the third embodiment. As shown in the figure, a call request with priority given to the callee user B is sent from the mobile phone 20 of the caller user A to the call service system 10 via the IP network 70. In response to this priority call request, the call service system 10 places a call to the mobile phone 20 of the caller user A via the general public line / mobile communication network 80 and assigns a telephone number corresponding to the priority. The communication terminal 230 makes a call to the telephone 30 of the user B who is called. Then, a callee voice call session is established between the call service system 10 and the telephone 30 of the callee user B, and a caller voice call session is established between the call service system 10 and the mobile phone 20 of the caller user A. When established, the call service system 10 bridges the callee voice call session and the caller voice call session. As a result, a voice call can be made between the mobile phone 20 of the caller user A and the telephone 30 of the callee user B at the date and time reserved by the caller user A.

  Note that some or all of the functions of the application server 100 may be converted into applications and installed in the mobile phone 20. In this case, part or all of the processing performed by the application server 100 is performed on the mobile phone 20, and the call service server 200 receives the processing result from the mobile phone 20 to perform the same call control processing as described above. be able to.

(Modification)
In the above example, the caller user A and the callee user B make a call using a telephone connected to the general public line / mobile communication network 80. You may make it perform a call using what is called an IP telephone which performs a voice call by a protocol. FIG. 12 is a block diagram showing a network when caller user A and callee user B use IP telephones.

  In the example of this figure, the IP telephone 22 used by the caller user A is connected to the IP network 70, and the IP telephone 32 used by the callee user B is connected to the IP network 70. In this case, the call from the call service server 200 is sent via the IP network 70 to the IP telephone 22 used by the caller user A and the IP telephone 32 used by the callee user B. The control process can be performed in the same manner as in the above example.

  Moreover, you may enable it to designate both the telephone call reservation demonstrated in Example 2, and the priority demonstrated in Example 3. FIG. FIG. 13 shows an example of a call destination list display screen 28 in which both call reservation and priority can be specified. On the call destination list display screen 28, the call destination list display field 28a displays the user B, user C, user D, and user E, which are call destinations obtained by referring to the user information storage unit 130, in a selectable state. In the call reservation designation area 28b, it is possible to select "call execution" for executing the call immediately and "call reservation" for executing the call at the reserved time. Furthermore, the priority designation area 28c Thus, “important” with high priority, “normal”, and “reply unnecessary” with low priority can be selected.

  The control in this case can be performed by combining the flowchart shown in FIG. 6 and the flowchart shown in FIG. That is, the call start date and time for the caller user A's mobile phone 20 and the callee B's telephone 30 are controlled according to whether or not a call reservation is made, and the callee user B's phone number is selected according to the selected priority. A call may be made to the telephone 30. The first embodiment is combined with the second embodiment, the third embodiment, or the modification example, and after the callee voice call session with the callee user B is established, the caller voice call session with the callee user A is established. Thus, both voice call sessions may be bridged.

1 is a block diagram showing a network including a call service system. FIG. It is a block diagram which shows the function structure of a call service system. It is a flowchart explaining the telephone call control of the call service system in 1st Example. It is a figure which shows an example of the call destination list display screen in 1st Example. It is the figure which showed typically the flow of the process of 1st Example. It is a flowchart explaining the call control of the call service system in 2nd Example. It is a figure which shows an example of the call destination list display screen in 2nd Example. It is the figure which showed typically the flow of the process of 2nd Example. It is a flowchart explaining the call control of the call service system in 3rd Example. It is a figure which shows an example of the call destination list display screen in 3rd Example. It is the figure which showed typically the flow of the process of 3rd Example. It is a block diagram which shows the modification of the network containing a call service system. It is a figure which shows the modification of a call destination list display screen.

Explanation of symbols

A ... Calling user B ... Calling user 10 ... Call service system 20 ... Mobile phone 20a ... Telephone 20b ... Terminal device 22 ... IP telephone 30 ... Telephone 32 ... IP telephone 70 ... IP network 80 ... General public line / mobile communication Network 90 ... Gateway 100 ... Application server 110 ... Web function unit 120 ... Application unit 121 ... Reserved call processing unit 122 ... Priority processing unit 130 ... User information storage unit 200 ... Call service server 210 ... Interface unit 220 ... Call control unit 221 ... Caller calling unit 222 ... Callee calling unit 223 ... Bridge processing unit 230 ... Communication terminal

Claims (6)

A call control system for connecting a call from a caller user to a callee user,
A connection request from the caller user to the callee user, the connection request including the caller user's phone terminal phone number and the callee user phone terminal phone number. A connection request receiving unit that receives from the user's information terminal device;
A call destination calling unit for calling the telephone terminal of the call destination user and establishing a call destination voice call session with the phone terminal of the call destination user;
After the establishment of the callee voice call session, a caller calling unit that makes a call to the caller user's phone terminal and establishes a caller voice call session with the caller user's phone terminal;
A bridge processing unit for establishing a voice call between the caller user's telephone terminal and the callee user's telephone terminal by bridging the callee voice call session and the caller voice call session; A call control system comprising: The connection request includes a call reservation time for starting call processing for the callee user,
The call destination calling unit executes the call to the telephone terminal of the call destination user at the call reservation time, and establishes a call destination voice call session with the telephone terminal of the call destination user. The call control system according to claim 1, wherein a reservation call processing unit is connected. The connection request includes designation of the priority of call processing for the called user,
In the call destination calling part,
In order to make the call, a plurality of communication terminals each assigned a telephone number;
In accordance with the correspondence between the predetermined priority and the telephone number, a call is made from the communication terminal assigned a telephone number corresponding to the designated priority to the telephone terminal of the called user, 2. The call control system according to claim 1, wherein a priority processing unit for establishing a call destination voice call session is connected between the communication terminal and the call destination user's telephone terminal. A call control method for connecting for a call from a calling user to a called user,
A connection request from the caller user to the callee user, the connection request including the caller user's phone terminal phone number and the callee user phone terminal phone number. A connection request receiving step received from the user's information terminal device;
A call destination calling step for calling a call terminal of the call destination user to establish a call destination voice call session with the call terminal of the call destination user;
A caller calling step for making a call to the caller user's phone terminal after establishing the callee voice call session and establishing a caller voice call session with the caller user's phone terminal;
A bridge processing step of establishing a voice call between the caller user's phone terminal and the callee user's phone terminal by bridging the callee voice call session and the caller voice call session; A call control method comprising: The connection request includes a call reservation time for starting call processing for the callee user,
In the call destination calling step, a reserved call for executing the call to the callee user's telephone terminal at the call reservation time and establishing a callee voice call session with the callee user's phone terminal. The call control method according to claim 4, further comprising a process. The connection request includes designation of the priority of call processing for the called user,
The call is made through a plurality of communication terminals each assigned a telephone number,
In the call destination calling step,
In accordance with the correspondence between the predetermined priority and the telephone number, a call is made from the communication terminal assigned a telephone number corresponding to the designated priority to the telephone terminal of the called user, 5. The call control method according to claim 4, further comprising priority processing for establishing a call destination voice call session between the communication terminal and the call destination user's telephone terminal.