JP2008211739A - Service cooperating apparatus, service cooperating system, service cooperating method, and computer program therefor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a service cooperating apparatus which achieves an additional service cooperation in which a service conflict or a signal conflict does not occur, even when a plurality of third-party service applications are cooperated. <P>SOLUTION: A service cooperating apparatus comprises a service analysis processing section in which an additional service to be called is specified on the basis of a received call control signal, information of an initiation restriction read from a service competition information storage means is referenced to check presence/absence of conflict between a plurality of specified additional services, and an error response is returned to a side from which call control signal is transmitted, if there is any conflict as a result of the check. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a service cooperation apparatus, a service cooperation system, a service cooperation method, and a computer program for cooperating a plurality of additional services in a call control network.

  As an additional service providing method in a call control network such as a VoIP (Voice over Internet Protocol, voice over IP) network in a communication carrier, a call control device such as a SIP (Session Initiation Protocol, Session Initiation Protocol) server or the like is used. In general, when a signal arrives, a program module of an additional service provided in the call control device is operated according to the service contract information of the user, and the subsequent signal transfer operation is controlled by the program module. In this method, since the service is realized by calling a program on a call control device operated by the communication carrier, it is difficult for a third party who is not the communication carrier to develop the service. On the other hand, in recent years, as a method for efficiently developing various network services, a method for efficiently developing services by linking multiple services on servers connected via a network by remote tapping has become common. Has achieved results.

  Based on the above, in the call control network of the telecommunications carrier, using the above-described method, the development of a service for operating a remote service operated by a third party in cooperation with session control on the call control network is realized. is important.

  As a method for realizing service development as described above in a call control network, IMS (IP Multimedia Subsystem, IP Multimedia Subsystem) is standardized by 3GPP (3rd Generation Partnership Project), which is a standardization organization. In this IMS, service contract information (User Profile, user profile) for each user and service activation conditions (Service Profile, service profile) are stored in a subscriber database. The SIP server obtains the user profile and the service profile when the SIP signal is received from the user, and satisfies the service activation condition specified by the Initial Filter Criteria (IFC, initial filter criteria) included in the service profile. If the signal is a corresponding signal, the SIP signal is transferred to the remote application server on which the service to be activated is deployed, thereby realizing cooperation with the remotely deployed service application.

  Non-Patent Document 1 describes a UML model representing an abstract structure of a user profile.

"3rd Generation Partnership Project; Technical Specification Group Core Network; IP Multimedia (IM) Subsystem Cx and Dx interfaces; Signaling flows and message contents (Release 5)", 3GPP TS 29.228 V5.11.0 (2005-03), p. 35-38

By the method described in the background art above, it is possible to call and cooperate with a remote service application as a call control supplementary service.
However, when an application developed by a third party is called, it is impossible to know in advance what modification the called application makes to the transferred signal and return a response signal. Therefore, there is a possibility that signal contradiction occurs as a result of rewriting the call control signal by a plurality of additional services, and it may become impossible to continue the service normally. . Therefore, when it is desired to link a plurality of additional services provided by a telecommunications carrier and additional services developed by a third party in the call control additional service, it is necessary to prevent the above contradiction from occurring.

  The present invention has been made for the purpose of solving such a problem, and the above-described problems in the cooperation of a plurality of third party service applications that could not be realized by the conventional call control supplementary service cooperation method. It is an object of the present invention to provide a service cooperation apparatus, a service cooperation system, a service cooperation method, and a computer program therefor that realize the call control additional service cooperation that does not cause service inconsistency and signal inconsistency.

[1] In order to solve the above-described problem, a service cooperation apparatus according to an aspect of the present invention is a service cooperation apparatus that controls cooperation of additional services in a call control network, and information on activation restrictions between types of additional services. Is specified by referring to the information on the activation restriction read from the service contention information storage means, and the service contention information storage means for storing the service and the additional service to be called based on the received call control signal It is checked whether there is a contradiction among the plurality of additional services, and if there is a contradiction as a result of this check, a service analysis processing unit that performs error processing is provided. In the case where there is no such service, the additional service is called.
With this configuration, based on the activation restriction information stored in the service contention information storage means, the service analysis processing unit checks for inconsistencies between additional services identified based on the received call control signal, that is, activates restriction. Check and handle the error if there is a conflict, and actually call the supplementary service only if there is no conflict. Therefore, it is possible to prevent invocation of a combination of a plurality of additional services that are inconsistent, that is, whose activation is restricted.

  Here, the additional service is a device that executes processing of a specific function. For example, a service (device) in which an application server computer reads a computer program of a specific function from a storage unit and executes it is an additional service. Also, calling an additional service means that an external device such as a service cooperation device or another computer program on the application server computer starts or calls the computer program of the specific function by sending a signal. Is to execute.

[2] A service cooperation apparatus according to an aspect of the present invention further includes an additional service data storage unit that holds additional service information for specifying a calling order of a plurality of additional services in the service cooperation apparatus. The service analysis processing unit determines a calling order of additional services to be called based on the additional service information read from the additional service data storage means when there is no contradiction among the plurality of services as a result of the check. The service cooperation apparatus is characterized in that the additional service is called in the calling order determined by the service analysis processing unit.
With this configuration, based on the additional service information stored in the additional service data storage unit, the service analysis processing unit determines the calling order of the plurality of additional services. Therefore, a plurality of additional services can be called in the correct order. That is, inconsistency due to the calling order can be prevented.

[3] A service cooperation apparatus according to an aspect of the present invention includes a rewrite permission information storage unit that stores rewrite permission information indicating a range in which a call control signal can be rewritten for each additional service in the service cooperation apparatus. When the received call control signal is transmitted to a predetermined additional service and a response call control signal is received from the additional service, the call control signal at the time of transmission is compared with the call control signal at the time of reception. A service cooperation apparatus, further comprising: a service contention control processing unit that checks the possibility of signal contradiction based on the comparison result and the rewrite permission information of the additional service read from the rewrite permission information storage unit is there.
With this configuration, the service contention control processing unit checks whether or not the called additional service has rewritten an unspecified part of the signal based on the rewrite permission information stored in the rewrite permission information storage means. it can. Therefore, even if the supplementary service rewrites an unauthorized part of the call control signal, it can be detected and appropriate action can be taken.

[4] A service cooperation apparatus according to an aspect of the present invention is the above-described service cooperation apparatus, wherein the additional service data storage means specifies a communication protocol used for communication with the additional service. It is a service cooperation apparatus that holds information and performs a protocol conversion process so that communication with the additional service can be performed using a communication protocol defined by the calling method information.
With this configuration, the service cooperation apparatus can call the additional service using a protocol different from the protocol used on the call control network side based on the calling method information stored in the additional service data storage unit. That is, it becomes possible to give flexibility to the configuration of the additional service.

[5] A service system according to an aspect of the present invention transmits / receives a call control signal between the service cooperation apparatus and the terminal apparatus via the call control network, and according to the call control signal. When it is necessary to call an additional service, the service cooperation system includes a call control device that transfers the call control signal to the service cooperation device, and an additional service called from the service cooperation device.
With this configuration, the terminal device and the service cooperation device can exchange call control signals via the call control network. In addition, the operation of the service cooperation device guarantees that a consistent service is called, and the service cooperation processing is appropriately executed.

  [6] A service cooperation method according to an aspect of the present invention is a service cooperation method for controlling cooperation of an additional service in a call control network, and the service conflict information storage unit included in the service cooperation device includes a type of the additional service. Information on activation restriction between each other is stored, and the service analysis processing unit included in the service cooperation apparatus specifies an additional service to be called based on the received call control signal, and is read from the service conflict information storage unit By referring to the activation restriction information, it is checked whether there is any contradiction among the plurality of specified additional services. If there is a contradiction as a result of the check, error processing is performed and the service analysis process is performed. If there is no contradiction as a result of checking by It is an.

[7] A computer program according to an aspect of the present invention is a computer program for causing a computer to execute a service cooperation method for controlling cooperation of additional services in a call control network, and information on activation restriction between types of additional services. The additional service to be called is specified on the basis of the received call control signal to the computer having the service contention information storage means for storing the information, and the activation restriction information read from the service contention information storage means is referred to Thus, it is checked whether or not there is any contradiction among the plurality of specified additional services, and if there is a contradiction as a result of this check, error processing is performed and the check whether there is a contradiction between the additional services. If there is no contradiction as a result of calling Is a computer program for executing be processed.
With this configuration, when this computer program is executed on the computer, the computer performs error processing when there is a contradiction between the additional services, and as a service cooperation device that calls the additional service only when there is no contradiction. Can work.

  As described above, in the present invention, the service analysis processing unit checks the contradiction between the additional services and calls the additional service only when there is no contradiction, or when the service analysis processing unit calls a plurality of additional services. Call control network service subscribers flexibly combine services provided by a third party in order to determine the correct call order, and the service contention control processing unit checks the call control signal rewrite range by the additional service, It becomes possible to select, and convenience is improved. In addition, it is possible for a communication carrier to suppress problems such as signal contradiction and service contradiction caused by a service provided by a third party by the contention control function.

Hereinafter, embodiments of the present invention will be described.
In this embodiment, as a service linkage method for solving the problem, first, an additional service is provided in which a communication path is provided between a call control device operated by a telecommunications carrier and an application server operated by a third party, and a signal between the two is mediated Establish a linkage function section. Then, an additional service database capable of registering additional service information developed by a third party is prepared, and information necessary for signal transfer such as application server address information and service type information can be set for each service application. . Based on the service type information, restrictions are placed on services that subscribers can make a contract at the same time.

  When a signal arrives at the call control device, the call control signal is transferred to the additional service cooperation function unit. In the additional service cooperation function unit that has received the signal transfer from the call control device, based on the additional service contract information of the subscriber stored in the subscriber information database and the additional service information stored in the additional service database, The calling order of the linked service is determined, and the program module arranged in the additional service function unit is called or the third party service is called by transferring the call control signal according to the calling order.

  In addition, for each service type, restrictions are placed on control operations such as header rewriting for call control signals, and a function for monitoring whether call control signals comply with restrictions after third-party development application operations are provided in the additional service cooperation function unit This enables service collaboration with third-party development services while preventing service conflicts and signal conflicts.

  FIG. 1 is a block diagram showing a configuration of main parts of the service cooperation system according to the present embodiment. This system realizes an additional service cooperation function system with the following configuration. As shown in the figure, the feature of this method is that a service cooperation server having a service cooperation function unit is provided between the call control network and the application server.

  In FIG. 1, reference numeral 30 denotes a service cooperation server. Further, 31 is a service cooperation function unit mounted on the service cooperation server, 40 is a subscriber information database accessible from the service cooperation server 30, and 50 is an additional service database (additional service data storage means) accessible from the service cooperation server. ). The subscriber information database 40 stores contract information for additional services for each subscriber. Reference numeral 20 denotes a call control network (communication network) provided by a communication carrier. Reference numeral 21 denotes a call control device provided on the call control network.

The service cooperation server 30 is realized using a computer system. The function of the service cooperation function unit 30 is stored as a computer program in a storage medium in the computer system, and the CPU (central processing unit) of the computer system reads out and executes the program, thereby providing the service cooperation function. The unit 31 is realized.
The subscriber information database 40 and the additional service database 50 are realized by storage means such as a magnetic disk device or a semiconductor storage device, and a database management system (DBMS) that manages data. There are various data management methods by the database management system. For example, a relational database or an XML database is used.

  Reference numeral 70 denotes an application server, and reference numeral 71 denotes a service application (additional service) arranged on the application server. The service cooperation server 30 and the application server 70 are connected via an information network 60 and can communicate with each other via the information network 60.

The application server 70 is realized using a computer system. The function of the service application, which is an additional service provided to the subscriber's terminal 10 or the like, is stored as a computer program in a storage medium in the computer system, and the CPU of the computer system reads the program. By executing the command, the service application 71 is realized.
The information network 60 is realized by appropriately combining the Internet (The Internet), a corporate network, and the like.

  Reference numeral 10 denotes a plurality of terminals used by subscribers to the communication business for voice data transmission / reception and video data transmission / reception by VoIP. Reference numeral 11 denotes a plurality of media servers used for automatic voice response, telephone conference, video distribution, and the like. The terminal 10 and the media server 11 are connected to the call control network 20, and the terminal 10 and the media server 11 communicate with each other between the terminals 10 or between the terminal 10 and the media server 11 via the call control network 20. Network services such as VoIP and video distribution are provided. In the present embodiment, SIP (Session Initiation Protocol) is used as a call control signal. When the call control device 21 mediates the call control signal as a SIP proxy, the above terminals 10 or 10 Communication between 10 and the media server 11 is performed.

  In the system configured as described above, when a call control signal additional service (for example, number conversion, transfer, notification of incoming call to another network, etc.) is performed according to the subscriber's additional service contract information, the call control device 21 An application server installed so as to be able to operate the service application arranged in the call control device 21 based on the information after analyzing the contract information of the subscriber at the time of receiving the control signal or to communicate with the call control device 21 Additional service is realized by transferring a call control signal to 70. And the service cooperation function part provided in the service cooperation server 30 plays the role which controls these service cooperation.

FIG. 2 is a block diagram showing a configuration for maintaining the subscriber information database 40 and the additional service database 50 in accordance with addition / deletion of services contracted by the subscriber.
As shown in the figure, in the present embodiment, a function for updating subscriber information and a function for registering additional services are provided. In FIG. 2, 80 is a subscriber information update server, 81 is a subscriber information update function unit provided on the subscriber information update server 80, 100 is an additional service registration server, and 101 is provided on the additional service registration server 100. Additional service registration function unit. The subscriber information update server 80 and the additional service registration server 100 are also realized using a computer system, like the service cooperation server 30 and the like.

The subscriber information update server 80 is connected to the call control network 20 and the information network 60, and can access the subscriber information database 40 and the supplementary service database 50. The additional service registration server 100 is connected to the information network 60 and can access the additional service database 50.
Reference numeral 90 denotes a maintenance network, and the subscriber information database 40 and the additional service database 50 are connected to the maintenance network 90. As a result, a maintenance terminal (not shown) connected to the maintenance network 90 can access these databases for system maintenance or data maintenance.

In the configuration shown in FIG. 2, the subscriber accesses the subscriber information update server 80 from the subscriber terminal through the call control network 20 or the information network 60, and has a subscriber information update function unit having a function such as an update user interface. The subscriber information is updated via 81. The subscriber information update function unit 81 appropriately updates the subscriber information database 40 and the additional service database 50 based on a request from the subscriber.
Further, a third party providing an application service accesses the additional service registration server 100 through the information network 60, and information on the additional service is added to the additional service database 50 by the service registration user interface provided by the additional service registration function unit 101. Register.

In addition, a business operator who operates the system can update the subscriber information database 40 and the additional service database 50 from the maintenance terminal through the maintenance network.
In the additional service database 50, information such as a service type, a service application arrangement address, and a calling method is registered.

Next, the structure of data stored in the subscriber information database 40 and the additional service database 50 will be described.
FIG. 3 is a schematic diagram showing a data structure registered in the subscriber information database 40. As shown in the figure, the subscriber information database 40 holds data representing the correspondence between subscribers and additional services. In the data example of FIG. 3, “subscriber information (1)” corresponding to a subscriber and “additional service information (1)” and “additional services ( 2) ”,... Are associated on the table.

FIG. 4 is a schematic diagram showing a data structure registered in the supplementary service database 50. As shown in the figure, the additional service database 50 holds data necessary for each additional service. In the data example of FIG. 4, for each of the additional service database 50 “additional service information (1)”, “additional service information (2)”,..., The additional service identifier, the service type, the service application arrangement address, the calling method And a table including data such as priority.
Among the above data, the data of the calling method includes information on a protocol (for example, SOAP) used when calling the additional service and essential flag information indicating whether the additional service is essential. Yes. When the mandatory flag information is “on”, this indicates that the additional service is mandatory and cannot be skipped. When the mandatory flag information is “off”, the additional service is optional and somehow In the case of an error or the like, it indicates that only the additional service may be skipped and the call control signal may be transferred.
Note that the order of calling services can be determined based on the priority data in the table of the additional service database 50.

  In the present embodiment, it is sufficient that the subscriber information database 40 and the supplementary service database 50 are configured as logically separate databases or separate tables, and physically exist on the same device. You may do it.

  FIG. 5 is a schematic diagram illustrating an outline of a data structure of service type data (rewrite permission information) stored in the rewrite permission information storage unit included in the service cooperation function unit 31. As shown in the figure, this service type data includes data of permission / prohibited operation type and condition information for each service type of service type information (1), service type information (2). . With these data, a range in which rewriting by the service application is permitted in the call control signal is predetermined for each service type.

Specifically, in the permitted / prohibited operation type item, data indicating that rewriting of a specific area (specified header) in the header of a message to be transmitted is prohibited in the service type, or rewriting of a specific header is permitted. Data representing what to do is set.
When data indicating that rewriting the specified header is prohibited is set as the permitted / prohibited operation type, the service belonging to the service type receives a signal that rewrites the header item data set as the condition information. Indicates that it cannot be sent. For example, when ““ To ”or“ From ”” is set as the condition information, the service of the service type cannot send a signal in which the “To” header or the “From” header is rewritten.
If data indicating that the specified header is allowed to be rewritten as the permitted / prohibited operation type, the service belonging to that service type is rewritten only for the header items set as condition information. Indicates that the signal can be sent. For example, when “To” is set as the condition information, the service of the service type can rewrite only the “To” header, and cannot send a signal with other headers rewritten. In such a case, when the service rewrites the “From” header, a conflict violation occurs and an error occurs.

  The rewrite permission information storage means uses a storage device such as a semiconductor memory or a magnetic disk drive. The rewrite permission information may be managed using a database management system, or the service type data table may be developed on the semiconductor memory by other means. The service type data may be hard-coded on the program code, and the service type data may be expanded on the RAM at the same time when an executable program created from the program code is loaded.

Next, a more detailed configuration and processing procedure will be described.
FIG. 6 is a block diagram illustrating a detailed configuration of the service cooperation server 30. The service cooperation function unit 31 mounted on the service cooperation server 30 includes a service analysis processing unit 311, service activation state information 312, and a service conflict control processing unit 313. The service analysis processing unit 311 can access the subscriber information database 40. As will be described in detail later, the service analysis processing unit 311 analyzes services based on information included in the call control signal and data held in the database, and determines the order of calling the services based on the relationship between the services. . Further, as will be described later in detail, the service contention control processing unit 313 checks whether there is a possibility of signal inconsistency as a result of rewriting the call control signal by the additional service.

  In addition, the service activation state information 312 includes information (“first”, “second”,... In the figure) representing the state corresponding to each service application 71. Specifically, the service activation status information 312 includes information on the cooperation status such as the execution order of additional services and additional service information.

FIG. 7 is a ladder chart showing a processing sequence when two service applications cooperate with each other according to this embodiment.
First, in step S <b> 10, the first call control signal transmitted from the originating terminal 10 accommodates the terminating terminal 10 via one or more call control devices 21 in the call control network 20. Arrives at the call control device 21.
If it is determined in the call control device 21 that the subscriber may have a contract for the additional service, the call control device 21 transfers the call control signal to the service cooperation server 30 in step S11.

  When the call control signal arrives, the service cooperation function unit 31 in the service cooperation server 30 operates the service analysis processing unit 311.

The service analysis processing unit 311 holds in advance a service contention information table (service contention information storage unit) in which activation restriction information among a plurality of service types is described. This table is realized by using a storage device accessible by a computer system, such as a semiconductor memory. Here, the description of the activation restriction among a plurality of service types indicates that there is a service contradiction between those services.
The service analysis processing unit 311 specifies an additional service to be called based on the arrived call control signal. When there are a plurality of additional services to be called, it is checked whether or not there is a contradiction between the plurality of additional services by referring to the service conflict information table. If there is a contradiction as a result of the check, the service cooperation server 30 performs error processing.
Here, the error processing is, for example, that information on the calling method in the additional service database 50 is read, and a service whose mandatory flag information included therein is “on” cannot be skipped. When there is a contradiction including service, the transfer of the call control signal cannot be continued, and an error response is returned to the calling terminal 10 and a failure process such as ignoring rewriting by the response signal is performed. . Alternatively, for a service whose mandatory flag information included in the call method information read from the additional service database 50 is “off”, only the processing of the additional service can be skipped, so that the additional service is skipped. (Do not process the additional service) to resolve the contradiction.
If there is no contradiction as a result of the check, the process proceeds to the next process.

Next, the service analysis processing unit 311 confirms whether or not information corresponding to the additional service exists in the service activation state information 312 based on the arriving call control signal.
As a result, if it exists, the service execution order information included in the service activation state information 312 is used.

On the other hand, when there is no service activation state information corresponding to the additional service, subscriber identification information is obtained from information in the call control signal.
In step S12, the service analysis processing unit 311 acquires the subscriber information and additional service information of the subscriber from the subscriber information database 40 based on the subscriber identification information acquired from within the call control signal. Each additional service information acquired at this time includes an additional service identifier.

  Then, the service analysis processing unit 311 reads the additional service information of the additional service from the additional service database 50 using the additional service identifier acquired above as a key. When there are a plurality of additional services to be called, the order of calling the additional services is determined based on the priority included in the additional service information. For example, calls are made in descending order of priority values of a plurality of additional services to be called.

  Note that the service analysis processing unit 311 may determine the order of calling additional services as follows. That is, when a subscriber makes a service contract, the execution order of additional services is determined based on the priority information recorded in the additional service database, and the subscriber information update server 80 (FIG. 2) Service contract information in the database 40 is updated. At this time, execution service data (additional service information) is written as service contract information (additional service data storage means) in the subscriber information database 40. When there are a plurality of additional services to be called, the service analysis processing unit 311 determines the order of calling the additional services based on the priority included in the additional service information.

  When the calling order of the additional services is determined as described above, the service analysis processing unit 311 stores the service activation state information 312 in the service cooperation server 30 for the purpose of storing the execution order of the additional services and the cooperation state such as the additional service information. Generate.

  In steps S13 and S14, the service cooperation server 30 sequentially transmits a call control signal to the plurality of application servers 71 based on the order defined by the service activation state information 312. The response signal from 71 is received. When transmitting a call control signal to the application server 71, the service contention control process 313 stores the transmission signal.

  When the response signal from the application server 71 is received, the service contention control processing 313 compares the transmission signal stored above with the received response signal to obtain a signal difference between the call control signals. Then, by referring to the service type data stored in the rewrite permission information storage unit, it is checked whether or not the call control signal has been rewritten beyond a predetermined range for each service type.

  If a violation is detected as a result of the check, the service cooperation server 30 performs a failure process such as returning an error response to the originating terminal 10 and ignoring rewriting by the response signal.

  In the above call signal transmission / reception, depending on the calling method specified by the additional service information in the additional service database 50, the signal may be converted into a format suitable for the service application 71 and transmitted / received. For example, when the service application 71 is a service implemented by SOAP (Simple Object Access Protocol), information to that effect is recorded in the calling method (calling method information) of the additional service information. The service cooperation server 30 converts the SIP signal into a SOAP format based on this information, and then transmits the SIP signal to the service application 71 on the application server 70. At this time, the response from the service application 71 is also received by SOAP, and conversion is performed to return this to the SIP signal.

When the calling of all the additional services is completed by the above-described series of operations, the service cooperation server 30 calls the call control device 21 that has transferred the call control signal to the call control device 21 that has been modified by the service application 71 in step S15. Transfer a new signal.
Thereafter, in step S16, the call control device 21 performs signal transfer again based on the modified signal, and as a result, performs transfer to the terminal 10 on the receiving side.

When the call control device 21 receives a response signal from the terminal 10 on the receiving side in step S17, the call control device 21 transfers the call control signal to the service cooperation server 30 as in step S11.
In the service cooperation server 30, since the service activation state information 312 that has already been generated exists, the existing service activation state information 312 is not accessed without accessing the subscriber information database 40 or the like or newly generating the service activation state information 312. Based on the above, in steps S19 and S20, the service application 71 is called in the reverse order.
Thereafter, in step S21, the service cooperation server 30 transfers the modified signal to the call control device 21, and in step S22, the call control device 21 transfers this signal to the original terminal 10 on the transmission side.

The relationship between the handling of a plurality of SIP signals and additional service information for realizing a series of services is as follows.
The additional service information of the subscriber in the subscriber information database 40 is added in advance according to the service contract of the user. At this time, a service contract that may cause inconsistency due to the contention control function is rejected by the subscriber information update server. When the first SIP signal is received by this user (initial INVITE), the additional service information related to the user is read from the subscriber information database 40, and based on this, service activation state information is generated on the memory. At this time, the calling order is determined by the “priority” item or the “service type” item of the additional service information. Regarding the subsequent SIP signal (180 Ringing → 200 OK → ACK → (During a call) → BYE → 200 OK), the signal is transferred based on the service activation state information generated in the memory above.

  In addition, when the devices such as each call control device, service cooperation server, application server, and additional service registration server in the above-described embodiment are realized by a computer, a computer-readable recording of a program for realizing this control function You may implement | achieve by recording on a medium and making a computer system read the program recorded on this recording medium, and executing it. Here, the “computer system” includes an OS and hardware such as peripheral devices. The “computer-readable recording medium” refers to a storage device such as a flexible medium, a magneto-optical disk, a portable medium such as a ROM and a CD-ROM, and a hard disk incorporated in a computer system. Further, the “computer-readable recording medium” dynamically holds a program for a short time, like a communication line when transmitting a program via a network such as the Internet or a communication line such as a telephone line. It is also possible to include those that hold a program for a certain time, such as a volatile memory inside a computer system serving as a server or client in that case. The program may be a program for realizing a part of the functions described above, and may be a program capable of realizing the functions described above in combination with a program already recorded in a computer system.

The present invention can also be implemented in the following modifications.
For example, a configuration in which the service cooperation function unit 31 is incorporated into the call control device 21 as software, or a service application 71 is deployed on a server on which the service association function unit 31 is arranged, and directly from the service association function unit 31 without using a network. A configuration that allows a program call to be performed may be used.

  Further, each of the above devices may be realized as dedicated hardware instead of a computer system that executes processing by a program.

  The embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration is not limited to this embodiment, and includes designs and the like that do not depart from the gist of the present invention.

It is a block diagram which shows the structure of the service cooperation system by embodiment of this invention. It is a block diagram which shows the structure for maintaining and operating the subscriber information database and supplementary service database by embodiment of this invention. 1 is a schematic diagram illustrating a data storage structure of a subscriber information database according to an embodiment of the present invention. FIG. 3 is a schematic diagram illustrating a data storage structure of an additional service database according to an embodiment of the present invention. It is the schematic which showed the data storage structure of the service classification data by embodiment of this invention. It is the block diagram which showed the detailed structure of the service cooperation server by embodiment of this invention. It is the ladder chart which showed the service cooperation process sequence by embodiment of this invention.

Explanation of symbols

20 Call processing network (communication network)
21 Call control device 30 Service cooperation server (service cooperation device)
31 Service Cooperation Function Unit 40 Subscriber Information Database 50 Additional Service Database (Additional Service Data Storage Means)
60 Information network 70 Application server 71 Service application (additional service)
311 Service analysis processing 312 Service activation state information 313 Service conflict control processing

Claims (7)

A service cooperation apparatus for controlling cooperation of additional services in a call control network,
Service conflict information storage means for storing information on activation restrictions between types of additional services;
The additional service to be called is specified based on the received call control signal, and the specified plurality of additional services are inconsistent by referring to the activation restriction information read from the service contention information storage unit. A service analysis processing unit that performs error processing when there is a contradiction as a result of the check,
An additional service is called when there is no contradiction as a result of checking by the service analysis processing unit. The service cooperation apparatus according to claim 1,
Additional service data storage means for holding additional service information for specifying the calling order of a plurality of additional services,
If there is no contradiction among the plurality of services as a result of the check, the service analysis processing unit determines a calling order of additional services to be called based on the additional service information read from the additional service data storage unit And
A service cooperation apparatus that calls the additional services in a calling order determined by the service analysis processing unit. In the service cooperation apparatus as described in any one of Claim 1 or 2,
Rewrite permission information storage means for storing rewrite permission information indicating a range in which rewriting of the call control signal is permitted for each additional service;
When the received call control signal is transmitted to a predetermined additional service and a response call control signal is received from the additional service, the call control signal at the time of transmission is compared with the call control signal at the time of reception. A service cooperation apparatus, further comprising: a service contention control processing unit that checks a possibility of signal contradiction based on a result and the rewrite permission information of the additional service read from the rewrite permission information storage unit. In the service cooperation apparatus as described in any one of Claim 1 to 3,
The additional service data storage means holds call method information for specifying a communication protocol used for communication with the additional service,
A service cooperation apparatus, wherein protocol conversion processing is performed so that communication with the additional service can be performed using a communication protocol defined by the calling method information. The service cooperation apparatus according to any one of claims 1 to 4,
A call control signal is transmitted / received to / from the terminal device via the call control network, and when it is necessary to call an additional service according to the call control signal, the call control signal is transferred to the service cooperation device. A call control device;
An additional service called from the service cooperation device;
Service linkage system consisting of A service cooperation method for controlling cooperation of additional services in a call control network,
In the service conflict information storage means provided in the service cooperation device, information on activation restriction between types of additional services is stored,
The service analysis processing unit included in the service cooperation apparatus specifies an additional service to be called based on the received call control signal, and specifies the activation restriction read from the service contention information storage unit, If there is a contradiction among the plurality of additional services that have been made, and if there is a contradiction as a result of this check, error processing is performed,
An additional service is called when there is no contradiction as a result of the check by the service analysis processing unit. A computer program for causing a computer to execute a service cooperation method for controlling cooperation of additional services in a call control network,
In a computer equipped with service contention information storage means for storing information on activation restrictions between types of additional services,
The additional service to be called is specified based on the received call control signal, and the specified plurality of additional services are inconsistent by referring to the activation restriction information read from the service contention information storage unit. If there is a contradiction as a result of this check, error processing is performed.
A computer program for executing a process of calling an additional service when there is no inconsistency as a result of the check as to whether there is a contradiction between the additional services.

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