JP6196197B2 - Call system, call control method, subscriber information accommodation server, and subscriber information accommodation program - Google Patents

Description

  The present invention relates to a call system including a plurality of service providing servers for providing a call service, and a subscriber information accommodation server connected to the plurality of service provision servers and accommodating subscriber data of the call service, and used for the call system. The present invention relates to a call control method, a subscriber information accommodation server, and a subscriber information accommodation program.

  In a call system compliant with IMS (IP Multimedia Subsystem), a call service is provided in cooperation with UPSF (User Profile Server Function) and ASF (Application Server Functions). Here, the UPSF is mounted on one computer, and the ASF is mounted on a plurality of computers. The UPSF manages subscriber data, and the ASF uses UPSF subscriber data. Specifically, the ASF requests subscriber data from the UPSF, and the UPSF notifies the ASF of the subscriber data. The ASF also executes a call processing service in cooperation with the UPSF.

  That is, the UPSF is mainly responsible for subscriber data request processing from the ASF, subscriber data notification processing to the ASF, and call processing from the ASF. The UPSF provides a processing allowance for each processing type, and performs processing within the range of the processing allowance. A processing request exceeding the processing allowable amount for each processing type is controlled so as not to perform processing exceeding the processing performance of UPSF by returning an error response without processing. Specifically, when processing exceeding the processing allowable amount allocated to call processing occurs, the excess call is processed as a call loss.

  In this way, the UPSF distributes the processing resources of the UPSF to each processing type by providing a processing allowance for each processing type.

  In addition, if the state exceeding the processing allowable amount continues, the state becomes congested, and the entire call system may not be able to operate properly. In order to recover from such a congestion state, there is a method of regulating the computer in accordance with the duration of the congestion state (see, for example, Patent Document 1).

JP 2014-41509 A

  However, there is a problem that resources are not properly allocated depending on the situation of the call system.

  Specifically, when replacing a computer that implements ASF in recovery from a catastrophic disaster, the ASF to be replaced is different from the normal operation state. Since the ASF to be replaced requires subscriber data in the call processing, the call processing cannot be started until the restoration of the subscriber data held by the ASF is completed. Accordingly, the replacement ASF processes only the subscriber data notification and the subscriber data request and does not process the call until the subscriber data is restored.

  On the other hand, the UPSF performs processing based on a predetermined resource allocation. Accordingly, no call processing occurs from this ASF until the replacement target ASF recovers the subscriber data, so there may be a surplus in resources allocated to the call processing. In addition, although it is expected that subscriber data can be recovered quickly, an excess call is processed as a call loss, so that subscriber data notifications and subscriber data requests from the ASF to be replaced cannot be sufficiently processed. Conceivable.

  As described above, there is a problem in that resources are not appropriately allocated depending on the operation status of the call system.

  Accordingly, an object of the present invention is to provide a call system, a call control method, a subscriber information accommodation server, and a subscriber information accommodation program that can appropriately allocate resources according to the operation status of the call system.

  In order to solve the above-described problem, a first feature of the present invention is that a plurality of service providing servers that provide a call service and subscriber information that is connected to the plurality of service providing servers and accommodates subscriber data of the call service. The present invention relates to a call system including an accommodation server. In the call system according to the first aspect of the present invention, the service providing server includes processing means connected to the subscriber information accommodating server to execute a subscriber data request, subscriber data notification, and call processing. The subscriber information accommodating server includes resource allocation means for allocating resources for subscriber data request, subscriber data notification and call processing, and resource allocation for each processing type of subscriber data request, subscriber data notification and call processing. Within the range, a processing means for executing subscriber data request, subscriber data notification and call processing is provided, and when there is a service providing server recovering subscriber data, the resource allocation means Reduce and allocate reduced resources to subscriber data requests and subscriber data notifications.

  Here, the resource allocating means of the subscriber information accommodating server reduces resources allocated to call processing according to the number of service providing servers being restored, and uses the reduced resources for subscriber data request and subscriber data notification. May be assigned.

  The service providing server further includes call processing amount notifying means for notifying the subscriber information accommodating server of the call processing amount, and the resource allocating means of the subscriber information accommodating server receives the call processing from the service providing server that executes the call processing. Obtain the amount, calculate the difference between the allocated call processing resource and the acquired call processing as a surplus resource, subtract the resource corresponding to the surplus resource from the allocated resource, and subscribe the reduced resource May be assigned to subscriber data requests and subscriber data notifications.

  According to a second aspect of the present invention, there is provided a call system including a plurality of service providing servers that provide a call service and a subscriber information accommodation server that is connected to the plurality of service provision servers and accommodates subscriber data of the call service. The present invention relates to a call control method used. According to a second aspect of the present invention, there is provided a call control method in which a service providing server connects to a subscriber information accommodating server and executes a subscriber data request, subscriber data notification, and call processing; The accommodating server allocates resources for subscriber data request, subscriber data notification and call processing, and the subscriber information accommodating server is allocated to each processing type of subscriber data request, subscriber data notification and call processing. Performing subscriber data request, subscriber data notification and call processing within the range of resources, the step of allocating resources allocated to the call processing if there is a service providing server recovering the subscriber data Reduce resources and allocate the reduced resources to subscriber data requests and subscriber data notifications.

  Here, in the step of allocating resources, the resources allocated to call processing may be reduced according to the number of service providing servers being restored, and the reduced resources may be allocated to subscriber data requests and subscriber data notifications.

  The service providing server further includes a step of notifying the subscriber information accommodating server of the call processing amount, and the step of allocating the resource acquires the call processing amount from the service providing server that executes the call processing, and performs the call processing. The difference between the allocated resource and the acquired call processing is calculated as a surplus resource, the resource corresponding to the surplus resource is reduced from the resources allocated to the call processing, and the reduced resource is subscribed to the subscriber data request and the subscriber data notification. May be assigned.

  A third feature of the present invention relates to a subscriber information accommodating server that is connected to a plurality of service providing servers that provide a call service and accommodates subscriber data of the call service. That is, the subscriber information accommodation server according to the third aspect of the present invention includes a resource allocation means for allocating resources to subscriber data request, subscriber data notification and call processing, subscriber data request, subscriber data notification and call processing. In the range of resources allocated to each processing type, a processing means for executing a subscriber data request, subscriber data notification and call processing is provided, and the resource allocation means is a service providing server that is restoring subscriber data. In some cases, resources allocated for call processing are reduced, and the reduced resources are allocated to subscriber data requests and subscriber data notifications.

  A fourth feature of the present invention relates to a subscriber information accommodation program for causing a computer to function as the means described in the third feature of the present invention.

  According to the present invention, it is possible to provide a call system, a call control method, a subscriber information accommodation server, and a subscriber information accommodation program that can appropriately allocate resources according to the operation status of the call system.

FIG. 1 is a diagram illustrating a call system according to an embodiment of the present invention. FIG. 2 is a diagram for explaining the hardware configuration and functional blocks of the subscriber information accommodation server according to the embodiment of the present invention. FIG. 3 is a diagram for explaining the hardware configuration and functional blocks of the service providing server according to the embodiment of the present invention. FIG. 4 is a diagram for explaining the concept of the processing amount for each processing type in the service providing server according to the embodiment of the present invention. FIG. 5 is a diagram for explaining the concept of resources allocated to each processing type in the subscriber information accommodation server according to the embodiment of the present invention. FIG. 6 is a diagram for explaining an example of the data structure and data of the resource data of the subscriber information accommodation server according to the embodiment of the present invention. FIG. 7 is a flowchart for explaining resource allocation processing of the subscriber information accommodation server according to the embodiment of the present invention.

  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.

(Calling system)
With reference to FIG. 1, a call system 5 according to an embodiment of the present invention will be described. The call system 5 includes a subscriber information accommodation server 1, a plurality of service providing servers 2, and a plurality of telephones 3.

  The subscriber information accommodation server 1 implements UPSF (User Profile Server Function). The subscriber information accommodation server 1 is connected to a plurality of service providing servers 2 to accommodate subscriber data of the telephone service, and also provides the subscriber information necessary for service provision to the service providing server 2 in the service providing server 2. .

  The service providing server 2 realizes ASF (Application Server Functions). The service providing server 2 accommodates a plurality of telephones 3, provides various services such as a call service to the telephones 3, and requests subscriber information about the telephones 3 to be accommodated from the subscriber information accommodation server 1.

  The subscriber information accommodation server 1 and the service providing server 2 cooperate to execute subscriber data request, subscriber data notification and call processing in order to provide a telephone service to the telephone 3. The subscriber information accommodation server 1 is responsible for the subscriber data request from the service providing server 2, the subscriber data notification to the service providing server 2, and the call processing from the service providing server 2. The service providing server 2 is responsible for subscriber data request to the subscriber information accommodation server 1, notification of subscriber data from the subscriber information accommodation server 1, and call processing to the subscriber information accommodation server 1.

(Subscriber information accommodation server)
With reference to FIG. 2, the subscriber information accommodation server 1 which concerns on embodiment of this invention is demonstrated. The subscriber information accommodation server 1 is a general computer including a storage device 110, a processing device 120, and a communication control device 130. When a general computer executes a subscriber information accommodation program for realizing a predetermined function, the processing device 120 implements each unit shown in FIG.

  The storage device 110 stores a subscriber information accommodation program and also stores subscriber data 111 and resource data 112.

  The subscriber data 111 is information of a subscriber who uses the telephone set 3 and is data in which a subscriber identifier is associated with a service that can be used by the subscriber, a condition for providing the service, and the like.

  The resource data 112 is data in which an allocated resource is associated with each processing type such as a subscriber data request, subscriber data notification, and call processing executed in the subscriber information accommodation server 1. In the embodiment of the present invention, a case is described in which resources are allocated to each processing type of subscriber data request, subscriber data notification, and call processing. However, resources may be allocated to other processing types. .

  The processing device 120 includes processing means 121 and resource allocation means 122.

  The processing means 121 refers to the subscriber data 111 and the resource data 112, and within the range of resources allocated to each processing type of subscriber data request, subscriber data notification and call processing, Perform person data notification and call processing. When a processing amount exceeding a resource allocated to a certain processing type occurs, the processing unit 121 performs control so that the excess processing amount is not processed even if there is a surplus in another processing type.

  The resource allocation unit 122 determines a resource to be allocated to each processing type of subscriber data request, subscriber data notification, and call processing according to the operating status of the service providing server 2, and updates the resource data 112. When all of the service providing servers 2 connected to the subscriber information accommodating server 1 are operating normally, the resource allocation unit 122 sets the resource amount of each processing type applied in the normal operation state in the resource data 112. .

  On the other hand, when there is the service providing server 2 that is restoring subscriber data, the resource allocation unit 122 reduces resources allocated to call processing and allocates the reduced resources to subscriber data requests and subscriber data notifications. The service providing server 2 restoring the subscriber data executes the subscriber data request and the subscriber data notification without executing the call processing until the restoration of the subscriber data is completed. Therefore, when there is the service providing server 2 whose subscriber data is being restored, the resource allocation unit 122 reduces resources for call processing that is not performed by the service providing server 2 being restored, and the service providing server 2 being restored executes it. Increase resources for subscriber data requests and subscriber data notification. Thereby, it is possible to respond to the subscriber data request and the subscriber data notification of the service providing server 2 being restored with sufficient resources.

  Here, the ratio at the time of allocating resources reduced for call processing to each of the subscriber data request and the subscriber data notification is in accordance with the operation policy of the call system 5. For example, it may be distributed according to the processing of subscriber requests and subscriber data, may be distributed at a fixed rate, or may be equally divided.

  The resource allocating means 122 has a method of reducing resources allocated to call processing according to the number of service providing servers 2 being restored and allocating the reduced resources to subscriber data requests and subscriber data notifications. Specifically, when one of the three service providing servers 2 is being restored, the resource allocation unit 122 reduces the resources allocated for call processing to 2/3 and reduces the reduced resources to subscriber data. Assign to request and subscriber data notification.

  In addition, the resource allocation unit 122 further includes a call processing amount acquisition unit 123 that acquires a call processing amount from the service providing server 2 that executes call processing, and the service processing server 2 that the call processing amount acquisition unit 123 acquires. There is a method of allocating resources based on the call processing amount. The call processing amount acquisition unit 123 may acquire the call processing amount by requesting the service providing server 2 to notify the call processing amount at the timing of changing the resource allocation, or may periodically acquire the call processing amount from the service providing server 2. Alternatively, the call processing amount notified may be acquired.

  Here, the resource allocation unit 122 calculates the difference between the resource allocated to the call processing and the call processing acquired by the call processing amount acquisition unit 123 as a surplus resource. The resource allocation unit 122 reduces the resource corresponding to the surplus resource from the resources allocated for the call processing, and allocates the reduced resource to the subscriber data request and the subscriber data notification.

(Service providing server)
With reference to FIG. 3, the service providing server 2 according to the embodiment of the present invention will be described. The service providing server 2 is a general computer including a storage device 210, a processing device 220, and a communication control device 230. When a general computer executes a service providing program for realizing a predetermined function, the processing device 220 implements each unit shown in FIG.

  The storage device 210 stores a subscriber information accommodation program and also stores subscriber data 211.

  The subscriber data 211 is information of a subscriber who uses the telephone 3 accommodated in the service providing server 2, and associates the identifier of the subscriber with the service available to the subscriber, conditions for providing the service, and the like. It is data. The subscriber data 211 is synchronized with the subscriber data 111 held by the subscriber information accommodation server 1.

  The processing device 220 includes a processing unit 221 and a call processing amount notification unit 222.

  The processing means 221 is connected to the subscriber information accommodation server 1 and executes subscriber data request, subscriber data notification and call processing.

  The call processing amount notifying means 222 notifies the subscriber information accommodation server 1 of the call processing amount related to the call processing among the subscriber data request, the subscriber data notification and the call processing in the service providing server 2. The call processing amount notifying unit 222 receives a request for notifying the call processing amount from the service providing server 2 at the timing when the subscriber information accommodation server 1 changes the allocation of resources, and notifies the call processing amount. The call processing amount may be periodically notified to the service providing server 2.

(Resource allocation)
With reference to FIG. 4 thru | or FIG. 6, the resource allocation method in the resource allocation means 122 of the subscriber information accommodation server 1 is demonstrated.

  FIG. 4A and FIG. 5A illustrate resource allocation for each of subscriber data request, subscriber data notification, and call processing in a normal operation state. In the normal operation state, as shown in FIG. 4A, each service providing server 2a, 2b, and 2c executes subscriber data request, subscriber data notification, and call processing. At this time, as shown in FIG. 5A, the subscriber information accommodation server 1 appropriately allocates resources for the subscriber data request, the subscriber data notification, and the call processing. Here, appropriately allocating resources indicates that resources are allocated corresponding to the processing amount and processing load of each of the subscriber data request, subscriber data notification, and call processing.

  It is assumed that the service providing server 2a has a hardware replacement or the like due to a catastrophic disaster or the like. In this case, as shown in FIG. 4 (b), the service providing server 2a stops the call processing and executes the subscriber data request and the subscriber data notification. In this case, the subscriber information accommodation server 1 reduces resources allocated for call processing and increases resources allocated for subscriber data request and subscriber data notification. As a method for changing resource allocation, as shown below, there are a method of allocating according to the number of service providing servers 2 being restored and a method of allocating according to the call processing amount of the service providing servers 2 in operation. Conceivable.

<Distribution method according to the number of service providing servers being restored>
With reference to FIG.5 (b), the method to allocate according to the number of the service provision servers 2 under recovery is demonstrated. Here, it is assumed that the service providing servers 2a, 2b, and 2c process the same amount of calls in the normal operation state, and the service providing server 2a is restored due to a catastrophic disaster or the like. In addition, the broken line in FIG.5 (b) shows the resource allocation in a normal operation state.

  In this case, the resource allocation means 122 reduces the resource allocated to the service providing server 2a, specifically, 1/3 of the resource allocated to call processing, and reduces the reduced resource to the subscriber data request and the subscriber data. Assign to notifications. As a result, as shown in FIG. 5 (b), resources allocated to call processing are reduced compared to the resource allocation in the normal operation state shown in FIG. 5 (a), but more due to subscriber data request and subscriber data notification. Resources can be allocated.

  Specifically, as shown in the “normal operation state” column of the resource data 112 in FIG. 6, the resource allocating unit 122 performs “subscriber data request, subscriber data notification, and call processing” Assume that resources “20”, “20”, and “60” are allocated. Here, when the service providing server 2a has been recovered due to a catastrophic disaster or the like, the resource allocation unit 122 sets the resource “60” allocated to the call processing as shown in the “allocation of resources for recovery server” column. The resource of call processing is set to “40” by subtracting 1/3 of “20”. Further, the resource allocation unit 122 allocates the resources reduced for the call processing to the subscriber data request and the subscriber data notification, and increases each resource to “30”.

  As described above, when there is the service providing server 2 that is restoring subscriber data, resources required for call processing are reduced, and resources required for subscriber data request and subscriber data notification are increased. As a result, even if the processing amount of subscriber data request and subscriber data notification related to recovery increases, resources that can be processed sufficiently can be allocated, so that the recovery processing of the service providing server 2 during recovery can be strengthened. it can.

<Distribution method according to the call processing amount of the service providing server in operation>
With reference to FIG.5 (c), the method to allocate according to the call processing amount of the service provision server 2 in operation is demonstrated. Here, in the normal operation state, the subscriber information accommodation server 1 has sufficient resources for call processing, the service providing servers 2b and 2c operate in the normal operating state, and the service providing server 2a is restored due to a severe disaster or the like. Suppose that In FIG. 5C, the broken line indicates the resource allocation in the normal operation state, and the alternate long and short dash line indicates the resource allocation allocated according to the number of service providing servers being restored, as described in FIG. 5B. Indicates.

  In this case, the call processing amount acquisition unit 123 of the resource allocation unit 122 acquires the call processing amount related to the call processing of the service providing servers 2b and 2c in operation. The resource allocation unit 122 determines a resource amount to be allocated to call processing based on the call processing amount acquired by the call processing amount acquisition unit 123, and determines based on the call processing resource amount and the call processing amount in the normal operation state. The surplus resource amount is calculated from the difference between the obtained resource amounts. The resource allocation unit 122 allocates the calculated surplus resource amount to the subscriber data request and the subscriber data notification. As a result, as shown in FIG. 5 (c), the resources allocated to call processing are further reduced as compared with the resource allocation in the normal operation state shown in FIG. 5 (a) and the resource allocation shown in FIG. 5 (b). More resources can be allocated for subscriber data requests and subscriber data notifications.

  Specifically, as shown in the “normal operation state” column of the resource data 112 in FIG. 6, the resource allocating unit 122 performs “subscriber data request, subscriber data notification, and call processing” Assume that resources “20”, “20”, and “60” are allocated. Here, when the service providing server 2a is restored due to a catastrophic disaster or the like, the resource allocating unit 122 acquires the call processing amount from the service providing servers 2b and 2c and determines the resource amount to be allocated to the call processing as 25. To do. As a result, the surplus resource amount is calculated as “35” from the difference between the resource amount “60” of the call processing in the normal operation state and the resource amount “25” allocated to the call processing. Therefore, the resource allocation unit 122 allocates “15” to the subscriber data request and “20” to the subscriber data notification out of the surplus resource amount “35”, and increases each resource.

  As described above, when there is the service providing server 2 that is restoring subscriber data, resources required for call processing are reduced, and resources required for subscriber data request and subscriber data notification are increased. Here, the resource to be allocated to the call processing is determined according to the call processing amount of the service providing server in operation, and the surplus resources are allocated to the subscriber data request and the subscriber data notification. The recovery process 2 can be strengthened.

  The allocation of resources allocated to the subscriber data request and the subscriber data notification shown in FIG. 6 is an example, and is not limited to this, and is determined according to the operation policy of the call system 5.

(Resource allocation method)
With reference to FIG. 7, the resource allocation process by the resource allocation means 122 of the subscriber information accommodation server 1 according to the embodiment of the present invention will be described.

  First, in step S11, the resource allocation unit 122 monitors the operating state of each service providing server 2 connected to the subscriber information accommodation server 1, and determines whether or not there is a service providing server 2 being restored in step S12. .

  When there is the service providing server 2 being restored, the resource allocating means 122 in step S13 allocates resources related to the call processing of the service providing server 2 being restored to other resources related to the processing of the subscriber information accommodation server 1 Allocate to processing. As described above, the resource amount to be allocated is allocated by the method of allocating according to the number of service providing servers 2 being restored and the method of allocating according to the call processing amount of the service providing servers 2 that are in operation. The Along with this, the processing means 121 of the subscriber information accommodation server 1 changes the resource assigned to each processing type based on the new resource data 112 for processing. Thereafter, the process returns to step S11, and the resource allocation unit 122 continues to monitor the status of the service providing server 2.

  If there is no service providing server 2 that is being restored, in step S14, the resource allocation unit 122 determines whether the resource amount in the normal operation state is currently set in the resource data 112. When the resource amount in the normal operation state is set, the process returns to step S11, and the resource allocation unit 122 continues to monitor the state of the service providing server 2. On the other hand, when the resource amount in the normal operation state is not set, the resource allocation unit 122 sets the resource amount in the normal operation state in the resource data 112. Along with this, the processing means 121 of the subscriber information accommodation server 1 changes the resource assigned to each processing type based on the new resource data 112 for processing.

  As described above, the subscriber information accommodation server 1 according to the embodiment of the present invention reduces resources allocated to call processing and reduces resources when there is a service providing server 2 that is restoring subscriber data. Are assigned to subscriber data requests and subscriber data notifications. The subscriber information accommodation server 1 lowers the priority of the call processing that cannot be processed by the service providing server 2 being restored, and the subscriber information accommodation server 1 increases the priority of the processing of the subscriber data request and the subscriber data notification. By increasing the number, it is possible to obtain a resource that can sufficiently cope with the subscriber data request and request processing of the subscriber data notification of the service providing server 2 being restored.

  Thus, the call system 5 according to the embodiment of the present invention can appropriately allocate resources according to the operation status of the call system.

(Other embodiments)
As described above, the embodiments of the present invention 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 subscriber information accommodation server described in the embodiment of the present invention may be configured on one piece of hardware as shown in FIG. 2, or on a plurality of pieces of hardware according to the functions and the number of processes. It may be configured.

  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 Subscriber information accommodation server 2 Service provision server 3 Telephone 5 Call system 110, 210 Storage device 111, 211 Subscriber data 112 Resource data 120 Processing device 121, 221 Processing means 122 Resource allocation means 123 Call processing amount acquisition means 130, 230 Communication control device 222 Call processing amount notification means

Claims (8)

A call system comprising: a plurality of service providing servers that provide a call service; and a subscriber information accommodating server that is connected to the plurality of service providing servers and accommodates subscriber data of the call service,
The service providing server includes:
Processing means for connecting to the subscriber information accommodation server and executing a subscriber data request, subscriber data notification and call processing;
The subscriber information accommodating server is:
Resource allocation means for allocating resources for subscriber data request, subscriber data notification and call processing;
Processing means for executing subscriber data request, subscriber data notification and call processing within the range of resources allocated to each processing type of subscriber data request, subscriber data notification and call processing;
The resource allocation means includes:
When there is a service providing server that is restoring subscriber data, a call system characterized by reducing resources allocated to call processing and allocating the reduced resources to subscriber data requests and subscriber data notifications. The resource allocation means of the subscriber information accommodating server is:
The call system according to claim 1, wherein resources allocated for call processing are reduced according to the number of service providing servers being restored, and the reduced resources are allocated to subscriber data requests and subscriber data notifications. . The service providing server includes:
Call processing amount notification means for notifying the subscriber information accommodation server of the call processing amount;
The resource allocation means of the subscriber information accommodating server is:
The call processing amount is acquired from the service providing server that executes the call processing.
The difference between the resource allocated to the call processing and the acquired call processing is calculated as a surplus resource, the resource corresponding to the surplus resource is reduced from the resources allocated to the call processing, and the reduced resource is added to the subscriber. The call system according to claim 1, wherein the call system is assigned to a data request and a subscriber data notification. A call control method used in a call system, comprising: a plurality of service providing servers that provide a call service; and a subscriber information accommodation server that is connected to the plurality of service provision servers and accommodates subscriber data of the call service. And
The service providing server connecting to the subscriber information accommodation server and executing a subscriber data request, subscriber data notification and call processing;
The subscriber information accommodating server allocating resources for subscriber data request, subscriber data notification and call processing;
The subscriber information accommodation server executes the subscriber data request, the subscriber data notification, and the call processing within the range of resources allocated to the processing types of the subscriber data request, the subscriber data notification, and the call processing. With
The step of allocating the resource comprises:
When there is a service providing server that is restoring subscriber data, a call control method characterized by reducing resources allocated to call processing and allocating the reduced resources to subscriber data requests and subscriber data notifications. The step of allocating the resource comprises:
5. The call control according to claim 4, wherein resources allocated for call processing are reduced according to the number of service providing servers being restored, and the reduced resources are allocated to subscriber data requests and subscriber data notifications. Method. The service providing server further comprising a step of notifying the subscriber information accommodation server of a call processing amount;
The step of allocating the resource comprises:
The call processing amount is acquired from the service providing server that executes the call processing.
The difference between the resource allocated to the call processing and the acquired call processing is calculated as a surplus resource, the resource corresponding to the surplus resource is reduced from the resources allocated to the call processing, and the reduced resource is added to the subscriber. 5. The call control method according to claim 4, wherein the call control method is assigned to data request and subscriber data notification. A subscriber information accommodating server for connecting to a plurality of service providing servers for providing a call service and accommodating subscriber data of the call service,
Resource allocation means for allocating resources for subscriber data request, subscriber data notification and call processing;
Processing means for executing subscriber data request, subscriber data notification and call processing within the range of resources allocated to each processing type of subscriber data request, subscriber data notification and call processing;
The resource allocation means includes:
A subscriber information accommodation server characterized in that when there is a service providing server that is restoring subscriber data, the resources allocated to call processing are reduced and the reduced resources are allocated to subscriber data requests and subscriber data notifications.   A subscriber information accommodation program for causing a computer to function as the means according to claim 7.

Images