JP2017038289A - Call processing control server, call processing control system, call processing control method, and call processing control program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To mitigate a load on a system in a congestion state.SOLUTION: A call processing control server 1 comprises: a storage device for storing level correspondence data 12 for associating an index of a congestion state on call processing, a congestion level, with an additional service identifier corresponding to an additional service value to be provided for a terminal at the congestion level; and call processing means 25 that, when having received a call processing signal including a target subscriber identifier from a terminal 2, outputs provision default data including a basic service value associated with the target subscriber identifier in subscriber default data 14 and outputs provision option data 18 including an additional service value associated with an identifier of additional service associated with the current congestion level in the level correspondence data 12, of identifiers of additional service associated with the target subscriber identifier in subscriber option data 15.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a call processing control server, a call processing control system, a call processing control method, and a call processing control program for receiving a call processing signal from a terminal via a network and processing the call processing signal with reference to subscriber data. .

  In a general call processing control system, a call processing control server receives a call processing signal from a terminal via a network, and processes the call processing signal with reference to subscriber data. The data provided by the call processing control server includes not only information necessary for a call but also information necessary for an additional service related to the call. When congestion occurs due to increased access to subscriber data or increased traffic, the call processing control system reduces the number of call processing signals to be processed and the services that can be provided to alleviate congestion. Try.

  In addition, in order to realize recovery or recovery from a congestion state to a steady state, a technique for strengthening a regulation level according to a time during which the congestion state is engaged is known (see Patent Document 1).

JP 2014-41509 A

  When a general call processing control system becomes congested, the number of call processing signals to be processed is suppressed, while the data size of the signal provided by the call processing control server does not change in a congested state or a steady state. .

  In some cases, the call processing control system falls into a high congestion state and provides only a minimum service provision such as providing only an emergency call in the event of a disaster or stopping an additional service. Even in such a case, since data similar to the steady state is distributed, information on services that are not actually provided is distributed, which may cause a burden on the system.

  Accordingly, an object of the present invention is to provide a call processing control server, a call processing control system, a call processing control method, and a call processing control program that can reduce the system load in a congested state.

  In order to solve the above problems, a first feature of the present invention relates to a call processing control server that receives a call processing signal from a terminal via a network and processes the call processing signal with reference to subscriber data. The call processing control server according to the first feature is data included in subscriber data, a subscriber identifier for identifying a subscriber, a basic service value used for communication of the subscriber, and the subscriber Subscriber default data that associates the identifier of the additional service with which the subscriber of the identifier contracts with respect to the call, and data included in the subscriber data, the subscriber identifier and the additional service with which the subscriber contracts Subscriber option data in which an identifier is associated with the subscriber identifier and an additional service value corresponding to the identifier of the additional service, a congestion level that is an indicator of a congestion state related to call processing, and provided to the terminal at the congestion level A storage device for storing level correspondence data for associating an additional service identifier corresponding to the additional service value to be received, and a target subscriber identifier from the terminal. Upon receipt of the call processing signal, the provision default data including the basic service value associated with the target subscriber identifier in the subscriber default data is output, and the additional information associated with the target subscriber identifier in the subscriber option data is output. Call processing means for outputting provided option data including an additional service value associated with the identifier of the additional service associated with the current congestion level in the level correspondence data among the service identifiers.

  The call processing means may include, in the provided default data, information for identifying the identifier of the additional service subject to the contract of the subscriber of the target subscriber identifier.

  Alternatively, the call processing means associates the provided default data with the current congestion level in the level-corresponding data among the additional services of the contract target of the subscriber with the target subscriber identifier as the contract target of the subscriber with the target subscriber identifier. Information that identifies the additional service that is not associated with the current congestion level in the level correspondence data among the additional services subject to the contract of the subscriber with the target subscriber identifier. May be.

  Here, the congestion state relating to call processing may be any one or more of congestion of subscriber data and congestion of the network.

  A second feature of the present invention is a database server for storing subscriber data, a call processing control server for receiving a call processing signal from a terminal via a network, and processing the call processing signal with reference to the subscriber data, A call processing control system comprising: In the call processing control system according to the second aspect of the present invention, the database server is data included in the subscriber data, the subscriber identifier for identifying the subscriber, and the basic service used for communication of the subscriber Subscriber default data that associates the value with the identifier of the additional service that the subscriber with the subscriber identifier subscribes to the call, and data included in the subscriber data, the subscriber identifier, the subscriber The subscriber option data in which the identifier of the additional service with which the service contracts is associated with the subscriber identifier and the additional service value corresponding to the identifier of the additional service is stored. The call processing control server includes a storage device that stores level correspondence data that associates a congestion level, which is an indicator of a congestion state related to call processing, with an additional service identifier corresponding to an additional service value provided to the terminal at the congestion level; When a call processing signal including the target subscriber identifier is received from the terminal, the provision default data including the basic service value associated with the target subscriber identifier in the subscriber default data is output and the target option data includes the target service identifier. A call that outputs provision option data including an additional service value associated with the identifier of the additional service associated with the current congestion level in the level correspondence data among the identifiers of the additional service associated with the subscriber identifier. A processing means is provided.

  A third feature of the present invention relates to a call processing control method for receiving a call processing signal from a terminal via a network and processing the call processing signal with reference to subscriber data. According to a third aspect of the present invention, there is provided a call processing control method in which a computer is data included in subscriber data, a subscriber identifier for identifying a subscriber, and a basic service used for communication of the subscriber. Subscriber default data that associates the value with the identifier of the additional service that the subscriber with the subscriber identifier subscribes to the call, and data included in the subscriber data, the subscriber identifier, the subscriber Subscriber option data associating the identifier of the supplementary service with which the contract is made, the subscriber identifier and the supplementary service value corresponding to the identifier of the supplementary service, a congestion level that is an indicator of a congestion state regarding call processing, Storing level correspondence data associating an additional service identifier corresponding to an additional service value provided to the terminal at a congestion level; When the terminal receives the call processing signal including the target subscriber identifier from the terminal, the provision default data including the basic service value associated with the target subscriber identifier in the subscriber default data is output and the subscriber option Provided option data including an additional service value associated with the identifier of the additional service associated with the current congestion level in the level correspondence data among the identifiers of the additional service associated with the target subscriber identifier in the data, A step of outputting.

  A fourth feature of the present invention relates to a call processing control program for causing a computer to function as the means described in the first feature of the present invention.

  According to the present invention, it is possible to provide a call processing control server, a call processing control system, a call processing control method, and a call processing control program that can reduce the system load in a congested state.

It is a figure explaining the system configuration | structure of the call processing control system which concerns on embodiment of this invention, the hardware configuration of a call processing control server, and a functional block. It is a flowchart explaining the call processing control method which concerns on embodiment of this invention. It is a figure explaining an example of a data structure and data of level corresponding data concerning an embodiment of the invention. It is a figure explaining an example of a data structure and data of subscriber data concerning an embodiment of the invention. It is a figure explaining an example of the data structure when the data structure of the provision data which concern on embodiment of this invention, and a congestion level is level 1. FIG. It is a figure explaining an example of the data structure when the data structure of the provision data which concern on embodiment of this invention, and a congestion level is level 2. FIG. It is a figure explaining an example of the data structure and data of level corresponding | compatible data which concern on the 1st modification of this invention. It is a figure explaining an example of the data structure of the provision data based on the 1st modification of this invention, and the data in case a congestion level is level 1. FIG. It is a figure explaining an example of the data structure of the provision data based on the 1st modification of this invention, and the data in case a congestion level is level 2. FIG.

  Next, embodiments of the present invention will be described with reference to the drawings. In the following description of the drawings, the same or similar parts are denoted by the same or similar reference numerals.

(Call processing control system)
A call processing control system 5 according to an embodiment of the present invention will be described with reference to FIG. The call processing control system 5 includes a call processing control server 1 and a plurality of terminals 2. The call processing control server 1 and the terminal 2 are connected via the network 3 so as to be able to talk to each other by SIP (Session Initiation Protocol) or the like.

  The terminal 2 is a so-called telephone, and requests a call to the call processing control server 1 or receives a call from the call processing control server 1 to realize a call by a subscriber.

  The call processing control server 1 refers to the subscriber data 13, transfers a call from the terminal 2, refers to and updates the subscriber data, and controls a call between the terminals 2.

  The subscriber data 13 includes data related to basic services used for calls and data related to additional services contracted individually for calls. The call processing control server 1 according to the embodiment of the present invention provides data related to the basic service regardless of whether it is in a congestion state or a steady state. On the other hand, the call processing control server 1 adjusts the number of data items according to the current congestion state for the data related to the additional service. The higher the congestion state, the lower the number of data items provided for the supplementary service.

  With reference to FIG. 2, an outline of the call processing control method according to the embodiment of the present invention will be described.

  First, in step S 1, the call processing control server 1 waits for a signal to be transmitted from the network 3. When a signal is transmitted from the network 3, the signal is received and the process proceeds to step S2. In step S2, the call processing control server 1 determines whether or not it is currently in a congestion state.

  In the congestion state, in step S3, the call processing control server 1 generates provision data 16 by extracting items to be provided according to the current congestion level from the subscriber data regarding the received signal. In step S4, the call processing control server 1 transmits the provision data 16 generated in step S3 to the terminal 2 via the network 3.

  When it is not a congestion state but a steady state, in step S5, the call processing control server 1 acquires subscriber data regarding the received signal. In step S6, the call processing control server 1 transmits the subscriber data acquired in step S5 to the terminal 2 via the network 3.

  The call service according to the embodiment of the present invention is divided into a basic service related to a call and an additional service for a call. The additional services are, for example, a call waiting function, a calling telephone number display function, and the like. In the embodiment of the present invention, the information on the basic service is transmitted regardless of whether it is in a congestion state or a steady state. On the other hand, some information on additional services may not be transmitted to the terminal 2 depending on the congestion level. The higher the congestion level, the less data is transmitted.

  As described above, the call processing control server 1 according to the embodiment of the present invention selects the data to be transmitted to the network in accordance with the congestion state, and suppresses the data amount to be transmitted, thereby reducing the system load in the congestion state. To alleviate.

(Call processing control server)
The call processing control server 1 is a general computer including a storage device 10, a processing control device 20, and a communication control device 30. The storage device 10 stores data that the call processing control server 1 refers to or outputs. The processing control device 20 refers to or processes data stored in the storage device 10 and stores the result in the storage device 10. The communication control device 30 is an interface with the network 3 and relays data communication between the terminal 2 and the processing control device 20. The call processing control server 1 realizes each function shown in FIG. 1 by a general computer realizing a call processing control program for realizing predetermined processing.

  The storage device 10 stores a call processing control program and also stores congestion level data 11, level correspondence data 12, subscriber data 13, and provision data 16.

  The congestion level data 11 is data indicating the current congestion state, and includes a congestion level that is an index of the congestion state related to call processing. This congestion level is specified by the congestion level specifying means 21 described later, and indicates one or more congestion states of the congestion of the network 3 and the congestion of the subscriber data 13. That is, the congestion level indicates one of the congestion states in a stepwise manner among the congestion of the subscriber data 13, the congestion of the network 3, and the congestion obtained by combining the congestion of the subscriber data 13 and the network 3.

  The level correspondence data 12 associates the congestion level with the additional service identifier corresponding to the additional service value provided to the terminal 2 at this congestion level.

  The level correspondence data 12 will be described with reference to FIG. The level correspondence data 12 expresses the congestion level in stages as level 1, level 2,..., And indicates that the congestion state increases as the level increases. Further, the level correspondence data 12 associates whether or not to provide an additional service value for each additional service for each congestion level.

  In the example shown in FIG. 3, when the congestion level is level 1, the supplementary service values for the A service and the C service are provided, while the supplementary service value for the B service is not provided. For the A service, when the congestion level is level 1, the additional service value is provided, whereas when the congestion level is level 2, the additional service value is not provided.

  The subscriber data 13 is referred to for call processing by the call processing control server 1. Subscriber data 13 includes subscriber default data 14 and subscriber option data 15.

  The subscriber default data 14 includes a subscriber identifier for identifying a subscriber, a basic service value used for communication of the subscriber, an identifier of an additional service with which the subscriber of the subscriber identifier subscribes for a call, and Associate. The subscriber option data 15 associates a subscriber identifier, an identifier of an additional service contracted by the subscriber, and an additional service value corresponding to the subscriber identifier and the identifier of the additional service.

  As shown in FIG. 4A, the subscriber default data 14 associates a subscriber identifier with a basic service value for this subscriber, and specifies a subscription additional service for which the subscriber subscribes. It has a service field. The basic service value is referred to in order for the subscriber to enjoy the basic service of the call. The subscription supplementary service field indicates whether or not the subscriber has a contract for the type of supplementary service provided in the call processing control system 5 according to the embodiment of the present invention.

  As shown in FIG. 4B, the subscriber option data 15 associates a subscriber identifier, an identifier of an additional service with which the subscriber has a contract, and an additional service value. The supplementary service value is referred to so that the subscriber can enjoy the supplementary service.

  The provision data 16 is data processed from the subscriber data associated with a predetermined subscriber identifier in the congested state. The provision data 16 includes provision default data 17 generated from the subscriber default data 14 and provision option data 18 generated from the subscriber option data 15.

  The processing control device 20 includes a congestion level specifying unit 21 and a call processing unit 25.

  The congestion level specifying unit 21 specifies the congestion level in the call processing control system 5 and stores the congestion level data 11 including the specified congestion level in the storage device 10. The congestion level specifying unit 21 includes a data congestion monitoring unit 22 that monitors congestion in the subscriber data 13 and a traffic congestion monitoring unit 23 that monitors traffic congestion in the network 3. The congestion level specifying unit 21 specifies the congestion level based on at least one of the congestion of the subscriber data detected by the data congestion monitoring unit 22 and the congestion of the network 3 detected by the traffic congestion monitoring unit 23. The congestion level specifying unit 21 sequentially specifies the congestion level and updates the congestion level data 11.

  The data congestion monitoring unit 22 monitors the congestion related to the subscriber data 13 based on the frequency of referring to or updating the subscriber data 13 based on the signal received from the terminal 2. For example, the data congestion monitoring unit 22 identifies the congestion state based on the number of REGISTER signals, INVITE signals, and SAR (Server-Assignment-Request) signals per unit time. At this time, the data congestion monitoring unit 22 determines whether the index value calculated by the number of REGISTER signals × a + the number of INVITE signals × b + the number of SAR signals × c exceeds a predetermined stepwise threshold. The state may be specified by leveling. Here, a is the weight of the REGISTER signal, b is the weight of the INVITE signal, c is the weight of the SAR signal, and each value of abc is based on the signal processing load on the subscriber data 13 It is determined in advance.

  The traffic congestion monitoring unit 23 monitors the congestion of the network 3 based on the load on the network 3. The traffic congestion monitoring unit 23 monitors congestion related to the network 3 based on, for example, network traffic information obtained from the processing data amount, throughput, and the like in the network 3. The traffic congestion monitoring means 23 may level and specify the congestion state based on whether or not the network traffic information exceeds a predetermined stepwise threshold.

  When receiving a call processing signal including the target subscriber identifier from the terminal 2, the call processing means 25 refers to the data related to the target subscriber identifier in the subscriber data 13 and processes the received call processing signal.

  If the call processing means 25 refers to the congestion level data 11 and determines that it is not in a congestion state, the call processing means 25 outputs data including the basic service value associated with the target subscriber identifier in the subscriber default data 14 and also subscribes. The data including the additional service value associated with the identifier of the additional service associated with the target subscriber identifier in the subscriber option data 15 is output. Specifically, when the subscriber identifier ID_1 shown in FIG. 4 is the target subscriber identifier, the call processing means 25 determines that the basic service value V_1 associated with the subscriber identifier ID_1 and the subscriber with the subscriber identifier ID_1 are The additional service values VA_1, VB_1, VC_1,... For the additional services A service, B service, C service,.

  When the call processing unit 25 refers to the congestion level data 11 and determines that it is in the congestion state, the call processing unit 25 provides the provided default data 17 including the basic service value associated with the target subscriber identifier in the subscriber default data 14. The additional service associated with the identifier of the supplementary service associated with the current congestion level in the level correspondence data among the identifiers of the supplementary services associated with the target subscriber identifier in the subscriber option data 15 Provided option data 18 including a value is output. Specifically, when the congestion level is level 1, as shown in FIG. 3, the additional service values for the A service and the C service are provided, and the additional service value for the B service is not provided. Therefore, when the subscriber identifier ID_1 shown in FIG. 4 is the target subscriber identifier, the call processing means 25 provides the default provided including the basic service value V_1 associated with the subscriber identifier ID_1 as shown in FIG. 5 (a). Data 17 is generated and stored. Further, as shown in FIG. 5B, the call processing means 25 generates provision option data 18 including the additional service value VA_1 for the A service provided at level 1 and the additional service value VC_1 for the C service. To do.

  When the congestion level is level 2, as shown in FIG. 3, the additional service value for the C service is provided, and the additional service value for the A service and the B service is not provided. Therefore, when the subscriber identifier ID_1 shown in FIG. 4 is the target subscriber identifier, the call processing means 25 provides the default provided including the basic service value V_1 associated with the subscriber identifier ID_1 as shown in FIG. Data 17 is generated and stored. Further, as shown in FIG. 6B, the call processing unit 25 generates and stores provision option data 18 including the additional service value VC_1 of the C service provided at level 2.

  When the call processing means 25 generates the provision default data 17 and the provision option data 18 shown in FIG. 5 or 6, the call processing means 25 outputs them to the terminal 2. In the example of the provision default data 17 shown in FIG. 5 and FIG. 6, the call processing means 25 includes the provision default data 17 in the target subscriber, such as “contract” for the additional service subject to the contract of the target subscriber. Include information for identifying additional services to be subscribed to by the subscriber of the identifier.

  As described above, the call processing control server 1 according to the embodiment of the present invention sets the congestion state in stages, stops providing the additional service according to the congestion state, and provides the information about the additional service. Cancel. As a result, the amount of data to be distributed and the processing amount of each device are reduced, so that the resources obtained thereby can be allocated to the basic service for calls. In addition, by increasing the resources that can be allocated to the basic service, it is possible to reduce the load on the network and data and contribute to the elimination of the congestion state.

(First modification)
In the embodiment of the present invention, the call processing control server 1 has provided the information for specifying the additional service for which the subscriber is contracting, while limiting the additional service value to be provided according to the congestion level. It is not limited to this. For example, depending on the congestion level, there may be a method of providing information on the assumption that the subscriber is not contracted even if the subscriber is an additional service under contract.

  The call processing means 25a according to the first modification includes level-corresponding data among the additional services subject to the contract of the subscriber with the target subscriber identifier as the contract target of the subscriber with the target subscriber identifier in the provided default data 17a. Among the additional services subject to the contract of the subscriber of the target subscriber identifier, including information for identifying the additional service associated with the current congestion level in 12a, the level correspondence data 12a is associated with the current congestion level. Do not include information that identifies no additional services.

  Specifically, the level correspondence data 12a according to the first modification stipulates that even an additional service subject to a contract is processed as an additional service without a contract according to the congestion level. As shown in FIG. 7, in the level correspondence data 12a, when the congestion level is level 1, the A service and the C service are treated as having a contract if there is a contract, while the B service is treated as having no contract even if there is a contract. Is called. For the A service, when the congestion level is level 1, if there is a contract, it is treated as having a contract. On the other hand, when the congestion level is level 2, it is treated as having no contract.

  Thereby, the provision default data 17a which concerns on a 1st modification differs from the provision default data 17 which concerns on embodiment of this invention. That is, the provided default data 17 when the congestion level shown in FIG. 5A is level 1 is contracted for the A service, the B service, and the C service. On the other hand, in the provided default data 17a shown in FIG. 8A, the A service and the C service are contracted, while the B service is not contracted. Similarly, provided default data 17 when the congestion level shown in FIG. 6A is level 2 is contracted for A service, B service, and C service. On the other hand, in the provision default data 17a shown in FIG. 9A, the C service has a contract, while the A service and the B service have no contract.

  On the other hand, the provision option data 18a according to the first modification is the same data as the provision option data 18 according to the embodiment of the present invention.

  Thus, the subscriber data provided to the terminal 2 only needs to be distributed in a smaller amount as the congestion level becomes higher, and may be adjusted in any way according to the congestion level.

(Second modification)
Although the case where the subscriber data 13 is stored in the call processing control server 1 has been described with reference to FIG. 1, the present invention is not limited to this. For example, the subscriber data 13 may be stored in a database server (not shown) connected to the call processing control server 1, and the call processing control server 1 may access the subscriber data via the database server.

  In addition, although the case where the call processing control server 1 includes the congestion level specifying means for specifying the congestion level has been described with reference to FIG. 1, the present invention is not limited to this. For example, a congestion monitoring server (not shown) connected to the call processing control server 1 may monitor the congestion state of data and the network, and the call processing control server 1 may acquire the congestion level from the congestion monitoring server.

(Other embodiments)
As described above, the embodiments of the present invention and the first and second modifications have been described. However, it should not be understood that the descriptions and drawings constituting a part of this disclosure limit the present invention. . From this disclosure, various alternative embodiments, examples, and operational techniques will be apparent to those skilled in the art.

  For example, the call processing control server described in the embodiment of the present invention may be configured on one piece of hardware as shown in FIG. 1, or on a plurality of pieces of hardware depending on the functions and the number of processes. It may be configured. Moreover, you may implement | achieve on the existing communication system.

  It goes without saying that the present invention includes various embodiments not described herein. Therefore, the technical scope of the present invention is defined only by the invention specifying matters according to the scope of claims reasonable from the above description.

DESCRIPTION OF SYMBOLS 1 Call processing control server 2 Terminal 3 Network 5 Call processing control system 10 Memory | storage device 11 Congestion level data 12 Level corresponding | compatible data 13 Subscriber data 14 Subscriber default data 15 Subscriber option data 16 Provision data 17 Provision default data 18 Provision option data DESCRIPTION OF SYMBOLS 20 Processing control apparatus 21 Congestion level specific means 22 Data congestion monitoring means 23 Traffic congestion monitoring means 25 Call processing means 30 Communication control apparatus

Claims (7)

A call processing control server that receives a call processing signal from a terminal via a network and processes the call processing signal with reference to subscriber data,
Data included in the subscriber data, a subscriber identifier for identifying a subscriber, a basic service value used for communication of the subscriber, and a subscriber of the subscriber identifier for the call Subscriber default data associated with the identifier of the supplementary service to be contracted, and
Data included in the subscriber data, wherein the subscriber identifier is associated with an identifier of an additional service with which the subscriber contracts, and an additional service value corresponding to the subscriber identifier and the identifier of the additional service. Subscriber option data,
A storage device that stores level correspondence data that correlates a congestion level that is an indicator of a congestion state related to call processing and an additional service identifier corresponding to the additional service value provided to the terminal at the congestion level;
Upon receiving a call processing signal including the target subscriber identifier from the terminal, the provision default data including the basic service value associated with the target subscriber identifier in the subscriber default data is output, and the subscriber A provision option including an additional service value associated with the identifier of the additional service associated with the current congestion level in the level correspondence data among the identifiers of the additional service associated with the target subscriber identifier in the option data A call processing control server comprising call processing means for outputting data. The call processing control server according to claim 1, wherein the call processing means includes, in the provided default data, information specifying an identifier of an additional service that is a contract target of a subscriber of the target subscriber identifier. The call processing means includes, in the provided default data, as a contract target of the subscriber of the target subscriber identifier, a current congestion in the level correspondence data among the additional services of the contract target of the subscriber of the target subscriber identifier. Among the additional services subject to the contract of the subscriber of the target subscriber identifier, including the information specifying the additional service associated with the level, the additional service that is not associated with the current congestion level in the level correspondence data The call processing control server according to claim 1, wherein information to be specified is not included. The call processing control according to any one of claims 1 to 3, wherein the congestion state related to the call processing is at least one of congestion of the subscriber data and congestion of the network. server. A call processing control system comprising: a database server that stores subscriber data; and a call processing control server that receives a call processing signal from a terminal via a network and processes the call processing signal with reference to the subscriber data. There,
The database server is
Data included in the subscriber data, a subscriber identifier for identifying a subscriber, a basic service value used for communication of the subscriber, and a subscriber of the subscriber identifier for the call Subscriber default data associated with the identifier of the supplementary service to be contracted, and
Data included in the subscriber data, wherein the subscriber identifier is associated with an identifier of an additional service with which the subscriber contracts, and an additional service value corresponding to the subscriber identifier and the identifier of the additional service. Store subscriber option data,
The call processing control server
A storage device that stores level correspondence data that correlates a congestion level that is an indicator of a congestion state related to call processing and an additional service identifier corresponding to the additional service value provided to the terminal at the congestion level;
Upon receiving a call processing signal including the target subscriber identifier from the terminal, the provision default data including the basic service value associated with the target subscriber identifier in the subscriber default data is output, and the subscriber A provision option including an additional service value associated with the identifier of the additional service associated with the current congestion level in the level correspondence data among the identifiers of the additional service associated with the target subscriber identifier in the option data Call processing control system comprising: call processing means for outputting data. A call processing control method for receiving a call processing signal from a terminal via a network and processing the call processing signal with reference to subscriber data,
A computer includes data included in the subscriber data, the subscriber identifier for identifying the subscriber, a basic service value used for communication of the subscriber, and the subscriber of the subscriber identifier Subscriber default data associated with the identifier of the additional service with which
Data included in the subscriber data, wherein the subscriber identifier is associated with an identifier of an additional service with which the subscriber contracts, and an additional service value corresponding to the subscriber identifier and the identifier of the additional service. Subscriber option data,
Storing level correspondence data associating a congestion level, which is an indicator of a congestion state relating to call processing, with an additional service identifier corresponding to the additional service value provided to the terminal at the congestion level;
When the computer receives a call processing signal including a target subscriber identifier from the terminal, the computer outputs provided default data including a basic service value associated with the target subscriber identifier in the subscriber default data. The additional service value associated with the identifier of the additional service associated with the current congestion level in the level correspondence data among the identifiers of the additional services associated with the target subscriber identifier in the subscriber option data. A method for controlling call processing, comprising: providing provided option data including: A call processing control program for causing a computer to function as the means according to any one of claims 1 to 4.

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