JP2020036264A - Communication system, migration method, data processing device, and data processing program - Google Patents

Abstract

To provide a communication system that reduces the influence on system operation when performing a subscriber accommodation change process of a call control server.SOLUTION: The present invention relates to a communication system having a subscriber device, a call control device, and a data processing device. The data processing device according to the present invention includes means for holding subscriber information based on a processing request from a subscriber information management system, means for holding call control device information relating to each call control device, means for selecting a destination of transmitting an input subscriber information processing request and transmitting a subscriber information processing request to the selected call control device when the subscriber information processing request is input from the subscriber information management system, and means for changing the condition of a selection process in the course of performing a subscriber accommodation change process for accommodating and changing a subscriber device connected to a first call control device to a second call control device.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a communication system, a migration method, a data processing device, and a data processing program, and can be applied to, for example, a system that provides an IP telephone service by a communication carrier or the like (hereinafter, referred to as an “IP telephone communication system”).

  2. Description of the Related Art Conventionally, in an IP telephone communication system of a communication carrier, a number of call control servers are installed to perform call control for subscriber terminals. Also, in an IP telephone communication system, usually, a database server (hereinafter, “DB server”) that manages information about subscribers (hereinafter, “subscriber information”) and setting information for each call control server (call control device). Is also installed). Further, in a large-scale network system such as a communication carrier, there are usually provided services other than the IP telephone communication system. Therefore, a system for managing subscriber information comprehensively for a plurality of services (hereinafter, “subscriber information management system”) ), And the subscriber information management system provides necessary subscriber information to a database server of an individual system such as an IP telephone communication system.

  By the way, as described above, in the IP telephone communication system of the communication carrier, a large number of call control servers are installed and call control for a large number of subscriber terminals is performed, so that the call control servers are frequently added or replaced. Will be. Usually, in the IP telephone communication system of the communication carrier, in order to reduce the load on the call control server which increases, the call control server is added, and a part of the call control server added from the existing call control server is partially added. The operation of transferring the processing of the subscriber terminal (hereinafter, referred to as “subscriber accommodation change processing” or “subscriber accommodation modification work”) is performed.

  As a technique related to a subscriber accommodation change process in a conventional IP telephone communication system, there is a technique described in Patent Document 1. The technology described in Patent Document 1 describes a process of transferring call processing data from a first call control server to a second call control server.

JP 2010-193368 A

  However, when a subscriber accommodating change process is performed in a conventional large-scale IP telephone communication system such as a communication carrier, a database server in the IP telephone communication system and a subscriber information management system for comprehensively managing customers are required. In order to prevent data inconsistency between the subscriber information and the like, it is necessary to suppress the update of the subscriber information in the subscriber information management system from the start to the end of the subscriber accommodation change process in the IP telephone communication system. That is, in a large-scale IP telephone communication system such as a conventional communication carrier, when performing the subscriber accommodation change process of the call control server, the influence on other systems (for example, the subscriber information of a new subscriber is Such as interruption of input). For some services, the real-time property from the service contract to the service start and the real-time property of the service contract change are emphasized for some services. Therefore, it is desirable to avoid the long-term suspension of the subscriber information management system as much as possible.

  Therefore, there is a need for a communication system, a migration method, a data processing device, and a data processing program that can reduce the influence on the system operation when performing the subscriber accommodation change processing of the call control server.

  According to a first aspect of the present invention, there is provided one or a plurality of subscriber units, a plurality of call controllers for performing a call control process on each of the subscriber units, each of the call controllers, and each of the subscribers. In a communication system comprising: a data processing device that manages information of a subscriber device, the data processing device (1) holds subscriber information of each of the subscriber devices, and Subscriber information processing means for processing information held based on a processing request for subscriber information input from a subscriber information management system for managing subscriber information relating to a subscriber side device; (3) when a subscriber information processing request is input from the subscriber information management system, the input subscriber information; Information supply means for performing a selection process of selecting the call control device to which the management request is to be transmitted, and transmitting the entered subscriber information processing request to the call control device selected by the selection process; (4) In the course of performing a subscriber accommodation change process for accommodating the subscriber device connected to the first call control device to the second call control device, the information supply means is provided with a condition for the selection process. And condition changing means for changing the condition.

  According to a second aspect of the present invention, there is provided one or a plurality of subscriber units, a plurality of call controllers for performing a call control process on each of the subscriber units, each of the call controllers and each of the subscribers. (1) The data processing device includes a subscriber information processing unit, a call control device information processing unit, an information supply unit, and a condition change unit. (2) The subscriber information processing means holds the subscriber information of each of the subscriber-side devices, and manages the subscriber information regarding each of the subscriber-side devices. Processing the held information based on the processing request for the subscriber information input from the information management system, and (3) the call control device information processing means includes a call control device for each of the call control devices. (4) the information supply means, when a subscriber information processing request is input from the subscriber information management system, the call control device to which the input subscriber information request is transmitted; Performing a selection process for selection, transmitting the entered subscriber information processing request to the call control device selected by the selection process, and (5) the condition changing means connects to the first call control device. In the process of performing the subscriber accommodation change process for accommodating the subscriber device to the second call control device, the information supply unit changes the condition of the selection process.

  According to a third aspect of the present invention, there is provided a data processing apparatus for managing information of one or a plurality of subscriber units and information of a plurality of call controllers performing a call control process for each of the subscriber units. It holds subscriber information of each of the subscriber-side devices, and is based on a processing request for subscriber information input from a subscriber information management system that manages subscriber information on each of the subscriber-side devices. Subscriber information processing means for processing the information held therein; (2) call control device information processing means for storing call control device information relating to each of the call control devices; and (3) the subscriber information management system. When a subscriber information processing request is input from the terminal, a selection process for selecting the call control device to which the input subscriber information request is transmitted is performed, and the input subscriber information processing request is selected. Information supply means for transmitting to the call control device selected by the user, and (4) subscriber accommodation change for accommodating and changing the subscriber device connected to the first call control device to the second call control device. In the process, a condition changing unit for changing the condition of the selection process to the information supply unit is provided.

  A data processing program according to a fourth aspect of the present invention is directed to a data processing apparatus that manages information of one or a plurality of subscriber devices and a plurality of call control devices that perform a call control process on each of the subscriber devices. The installed computer is loaded from a subscriber information management system (1) which holds the subscriber information of each of the subscriber units and manages the subscriber information on each of the subscriber units. Subscriber information processing means for processing information held based on the processing request for the subscriber information, and (2) call control device information processing means for storing call control device information relating to each of the call control devices; (3) When a subscriber information processing request is input from the subscriber information management system, a selection process for selecting the call control device to which the input subscriber information processing request is transmitted is performed. An information supply unit for transmitting the entered subscriber information processing request to the call control device selected by the selection process; and (4) the subscriber side device connected to the first call control device, comprising: In the process of performing a subscriber accommodation change process for accommodating a call in the call control device, the information supply unit is made to function as a condition changing unit for changing a condition of the selection process.

  According to the present invention, it is possible to provide a communication system that reduces the influence on the system operation when performing the subscriber accommodation change processing of the call control server.

FIG. 1 is a block diagram showing a connection configuration of an IP telephone communication system according to an embodiment and peripheral components thereof. FIG. 2 is a block diagram illustrating a functional configuration of a DB server according to the embodiment. FIG. 2 is a block diagram illustrating a functional configuration of a call control server according to the embodiment. FIG. 4 is an explanatory diagram showing a configuration example of subscriber information held in a DB server according to the embodiment. FIG. 9 is an explanatory diagram showing a configuration example of accommodation station number management information held in the DB server according to the embodiment. FIG. 3 is an explanatory diagram illustrating a configuration example of server management information held in a DB server according to the embodiment. FIG. 9 is an explanatory diagram showing a configuration example of self-accommodating station number information held in the call control server according to the embodiment. FIG. 4 is an explanatory diagram showing a configuration example of self-contained subscriber information held in a call control server according to an embodiment. FIG. 9 is an explanatory diagram (part 1) illustrating a process in which a subscriber accommodation change process is performed in the communication device according to the embodiment. FIG. 10 is an explanatory diagram (No. 2) illustrating a process in which a subscriber accommodation change process is performed in the communication device according to the embodiment. FIG. 10 is an explanatory diagram (No. 3) illustrating a process in which the subscriber accommodation change process is performed in the communication device according to the embodiment. FIG. 9 is an explanatory diagram (No. 4) illustrating a process in which the subscriber accommodation change process is performed in the communication device according to the embodiment. FIG. 10 is an explanatory diagram (No. 5) illustrating a process in which the subscriber accommodation change process is performed in the communication device according to the embodiment. FIG. 10 is an explanatory diagram (No. 6) illustrating a process in which the subscriber accommodation change process is performed in the communication device according to the embodiment. FIG. 14 is an explanatory diagram (No. 7) illustrating a process in which the subscriber accommodation change process is performed in the communication device according to the embodiment.

(A) Main Embodiment Hereinafter, an embodiment of a communication system, a communication method, a data processing device, a data processing program, and a data processing method according to the present invention will be described in detail with reference to the drawings. In this embodiment, an example in which the communication system of the present invention is applied to an IP telephone communication system will be described. In this embodiment, an example in which the data processing device of the present invention is applied to a DB server will be described.

(A-1) Configuration of Embodiment FIG. 1 is a block diagram showing an overall configuration of an IP telephone communication system 1 and a connection between the IP telephone communication system 1 and peripheral devices according to this embodiment.

  The IP telephone communication system 1 provides an IP telephone service (call control required for the IP telephone service) to one or a plurality of Customer Premises Equipment (CPE) 4 (subscriber side apparatus) connected to the IP network X of the communication carrier. System. In addition, the IP telephone communication system 1 transmits information on each subscriber (contractor) (information on each CPE 4; hereinafter, referred to as “subscriber information” or “contractor information”) to a subscription arranged on the IP network X. From the client information management system 2. The number of CPEs 4 connected to the IP telephone communication system 1 is not limited.

  Each CPE 4 has a function of connecting to the IP network X, a function of connecting a subscriber terminal (for example, a telephone device such as an analog telephone or a PBX at the subscriber premises), and a function of connecting to the subscriber terminal and an IP telephone. It is responsible for functions such as control signal processing and voice codec for realizing services. The type of the physical line connecting the CPE 4 and the IP network X does not matter, but the communication of the call control protocol (SIP message transmission / reception) and the RTP (Real-time Transport Protocol) between the CPE 4 and the IP network X (media signal transmission). Transmission / reception) is possible.

  Next, the configuration of the IP telephone communication system 1 will be described.

  The IP telephone communication system 1 has a DB server 10 and a plurality of call control servers 20 (20-1, 20-2, ...) (call control devices).

  In the IP telephone communication system 1 according to this embodiment, a description will be given assuming that call control processing using SIP (Session Initiation Protocol) is performed. That is, each call control server 20 performs a call control process for each CPE 4 by transmitting and receiving a SIP message (SIP signal).

  In this embodiment, each CPE 4 connects to the call control server 20 according to the settings. In other words, each CPE 4 requests connection (transmits a REGISTER message to request registration) and connects (registers) to one of the call control servers 20 according to the settings. Then, each CPE 4 performs communication (for example, transmission and reception of call voice data) according to the call control of the connected (registered) call control server 20. More specifically, in the example of this embodiment, each call control server 20 functions as a C5SS (Class 5 Soft Switch), and communicates with each CPE 4 accommodated by SIP messages and other call control servers 20. Of call control processing (exchange processing). In other words, each call control server 20 has a function of a subscriber exchange.

  The DB server 10 performs a process of collecting (managing) various information necessary for providing an IP telephone service (for example, a call control process for each call control server 20) and providing the collected information to each call control server 20. The DB server 10 includes, for example, call control such as subscriber information (for example, contract information with each subscriber and setting information for each CPE 4) and routing information (for example, information of the call control server 20 to which each CPE 4 is connected). It has a function of storing information necessary for processing (IP telephone service provision). The DB server 10 holds information provided from the subscriber information management system 2 and information based on information reported from each call control server 20.

  Then, the subscriber information management system 2 reflects the subscriber information and the like on the DB server 10 for accepting and managing the service contract application from the subscriber (end user) and reflecting the service contract application to the system that provides the IP telephone service. Let it.

  Next, the configuration of each device constituting the IP telephone communication system 1 will be described.

  FIG. 2 is a block diagram illustrating a functional configuration of the DB server 10.

  The DB server 10 has a control unit 11 and a data storage unit 12.

  The DB server 10 may be configured by installing a program (a data processing program according to the embodiment) on a computer such as a PC or a workstation.

  The control unit 11 has a function of controlling the entire apparatus and performing data processing, and has a DB processing unit 111.

  The DB processing unit 111 performs processing of each information stored in the data storage unit 12 (for example, registration, update, and deletion of information). The DB processing unit 111 may be configured using, for example, middleware of a database and a server application operating on the middleware. The DB processing unit 111 performs processing of each piece of information stored in the data storage unit 12 based on control from the subscriber information management system 2 or a terminal (not illustrated) (for example, a terminal operated by an operator).

  The data storage unit 12 is a storage unit that stores various data used in the processing of the control unit 11. In this embodiment, the data storage unit 12 stores subscriber information 121, accommodation number management information 122, and server management information 123. Details of each information stored in the data storage unit 12 will be described later.

  The subscriber information 121 is composed of items necessary for the call control process among information on each subscriber (each CPE 4).

  In the example of this embodiment, as shown in FIG. 4, the subscriber information 121 includes information of a telephone number, a subscriber ID (not shown), an accommodation CA,... For each subscriber (each CPE 4). Is registered.

  The "telephone number" is an identifier of each subscriber in the call control processing. In this embodiment, the telephone number functions as a SIP URI (SIP Uniform Resource Identifier) of each subscriber. Alternatively, the subscriber ID may be a SIP URI, and the subscriber ID and the telephone number may be linked with reference to the registered subscriber information 121. In the example of this embodiment, it is assumed that the telephone number is composed of 10 digits. The upper six digits of the telephone number indicate the station number, and the lower four digits of the telephone number indicate the subscriber number (the subscriber number within the upper six digits of the station number). In this embodiment, each station number is basically assigned to one of the call control servers 20. In principle, it is assumed that subscribers having the same station number are set to connect to the same call control server 20. That is, in this embodiment, station numbers to be accommodated are set for each call control server 20, and a subscriber (CPE4) associated with each station number is connected (accommodated).

  “Accommodated CA” indicates the name (for example, host name) of the call control server 20 to which each subscriber connects. Here, the name of the call control server 20-1 is represented as "CA # 1", and the name of the call control server 20-2 is represented as "CA # 2",.

  The accommodation number management information 122 is information for managing the call control server 20 corresponding to each station number. In this embodiment, as shown in FIG. 5, the accommodating station number management information 122 registers the name of the call control server 20 corresponding to each station number.

  The server management information 123 is information for managing each call control server 20. In this embodiment, as shown in FIG. 6, “CAID” indicating a management number and “CA name” indicating a name are registered in the server management information 123 for each call control server 20. In this embodiment, the CAID indicates the order in which the call control servers 20 are installed. For example, when the call control server 20-1, the call control server 20-2,... Are installed in this order, the CAID of the call control server 20-1 is 1, the CAID of the call control server 20-2 is 2,. Become.

  FIG. 3 is a block diagram showing a functional configuration inside each call control server 20.

  The call control server 20 has a control unit 21 and a data storage unit 22.

  The control unit 21 has a function of controlling the entire apparatus and performing data processing, and includes a call control processing unit 211 and a data processing unit 212.

  The call control processing unit 211 performs a call control process for each CPE 4 connected to the own device. The call control processing unit 211 can be realized by using, for example, an application of a SIP server. The call control processing unit 211 performs a call control process using the information and the like held in the data storage unit 22. The call control processing unit 211 makes an inquiry about data to the DB server 10 as needed in the course of the call control processing.

  The data processing unit 212 performs processing of each information stored in the data storage unit 22 (for example, registration, update, and deletion of information). The data processing unit 212 performs processing of each piece of information stored in the data storage unit 22 based on, for example, control from the DB server 10 or a terminal (not illustrated) (for example, a terminal operated by an operator).

  The data storage unit 22 is a storage unit that stores various data used in the processing of the control unit 21. In this embodiment, the data storage unit 22 stores self-accommodated station number information 221 and self-accommodated subscriber information 222. Details of each information stored in the data storage unit 22 will be described later.

  As shown in FIG. 7, the own station number information 221 is information indicating a list of station numbers (station numbers assigned to the own apparatus) accommodated in the own apparatus (own station).

  The self-contained subscriber information 222 includes items necessary for the call control processing of the subscriber (CPE4) connected to the own device (own station) among the subscriber information on each subscriber (each CPE4). In the example of this embodiment, as shown in FIG. 8, information on items of a subscriber ID, a telephone number, and an IP address for each subscriber (each CPE 4) is registered in the self-contained subscriber information 222. .

(A-2) Operation of the Embodiment Next, the operation of the IP telephone communication system 1 of the embodiment having the above configuration will be described.

  First, the basic operation of the subscriber information processing in the IP telephone communication system 1 will be described.

  When a processing request (order) of subscriber information is input from the subscriber information management system 2, the DB server 10 (DB processing unit 111) stores the processing based on the processing request in the subscriber information 121 held by its own device. To reflect. Further, when a processing request for subscriber information is input from the subscriber information management system 2, the DB server 10 (DB processing unit 111) converts the telephone number (subscriber telephone number) of the subscriber information to a station number (subscriber telephone number). The station number of the connected call control server 20 is determined. The DB server 10 (DB processing unit 111) checks the call control server 20 corresponding to the station number determined with reference to the accommodation number management information 122, and requests the call control server 20 to process the subscriber information (subscription). (A processing request for the subscriber information input from the client information management system 2).

  When a processing request for subscriber information is input from the DB server 10 (DB processing section 111), the call control server 20 (call control processing section 211) stores the processing request in its own subscriber information. 222.

  The processing request of the subscriber information input to the DB server 10 (DB processing unit 111) from the subscriber information management system 2 includes, for example, registration (newly registering subscriber information), update (registered subscriber information). Update) and deletion (deletion of registered subscriber information). Each of the DB server 10 (DB processing unit 111) and the call control server 20 (call control processing unit 211) processes subscriber information according to a processing request from the subscriber information management system 2 (for example, registration, update, and deletion). )I do.

  Next, an outline of the subscriber accommodation change process in the IP telephone communication system 1 will be described.

  In the IP telephone communication system 1, the same station number is not normally set in a plurality of call control servers 20. On the other hand, in each call control server 20, the upper limit of the number of subscribers that can be accommodated is determined by the specifications of the device (computer). It is necessary to secure the control server 20 and change the accommodation (connection change) of the subscriber to the secured call control server 20. Therefore, the IP telephone communication system 1 needs to cope with the subscriber accommodation change process.

  In the course of the subscriber accommodation change process, the process of changing the connection destination of the CPE 4 (the destination for transmitting the REGISTER message) from the source call control server 20 to the destination call control server 20 (hereinafter, “subscriber-side device setting”) During the period, information on the station number of the subscriber accommodation change target of the migration source call control server 20 and the migration destination call control server 20 (the accommodation number management information 122 of the DB server 10). , And own station number information 221) of each call control server 20. This is because, even in the process of the subscriber accommodation change process, it is necessary to continue the service (for example, outgoing / incoming telephone communication) for the CPE 4 of the station number to be changed.

  That is, in the process of the subscriber accommodation change process, one station number (station number subject to the subscriber change process) needs to be set in both the transfer source call control server 20 and the transfer destination call control server 20. . This is because, during the process of changing the setting of the subscriber side device, a state occurs in which the CPE 4 of one station number is separately connected to the call control server 20 of the transfer source and the call control server 20 of the transfer destination. During the subscriber device setting change processing, the IP telephone service (for example, outgoing / incoming telephone call) is provided to both the CPE 4 connected to the call control server 20 of the transfer source and the CPE 4 connected to the call control server 20 of the transfer destination. The system to be provided is not limited, and various systems can be applied. For example, regarding the incoming call to the accommodation change target subscriber, the incoming call to the accommodation change target subscriber can be made by updating the routing setting so that the incoming call to the accommodation change target station number arrives at the call control server 20 of the transfer destination. Become. In addition, with respect to the transmission from the accommodation change target subscriber, until the change of the connection destination of the CPE 4 is completed, in both the transfer source call control server 20 and the transfer destination call control server 20, the change of the accommodation change target subscriber is performed. It becomes possible by holding the subscriber information.

  At this time, if the DB server 10 (DB processing unit 111) receives a processing request for the subscriber information from the subscriber information management system 2, which call control server 20 should transfer the processing request to the destination. It becomes a problem. In this case, since it is the process of the subscriber accommodation change process, it is desirable that the DB server 10 (DB processing unit 111) transfer the processing request of the subscriber information to the call control server 20 of the transfer destination. This is because if a processing request for subscriber information is transferred to the call control server 20 of the transfer source, inconvenience may occur in the IP telephone service after the subscriber accommodation change processing. Here, in the DB server 10 (DB processing unit 111), the method of identifying the transfer destination call control server 20 is not limited. In this embodiment, the DB server 10 (DB processing unit 111) identifies the transfer destination call control server 20 based on the contents of the server management information 123. For example, assuming that the transfer destination call control server 20 is newly added, the installation order of the transfer destination call control server 20 is later than that of the transfer source call control server 20. Therefore, in this case, the DB server 10 (DB processing unit 111) recognizes the later installation order (the larger CAID number) as the transfer destination call control server 20, and joins the transfer destination call control server 20. The processing request of the user information can be transferred.

  The exception processing in the subscriber accommodation change processing as described above is always installed in the DB processing unit 111, and is activated (ON) only at the time of the subscriber accommodation change processing, and is activated after the subscriber accommodation change processing is accommodated. The processing may be inactivated (OFF), or the DB processing unit 111 (a program corresponding to the DB processing unit 111) may be replaced only during the subscriber accommodation change processing. In this embodiment, it is assumed that the DB processing unit 111 is provided with a processing unit (a transition processing unit 112 described later) that performs the above-described exception processing only when the subscriber accommodation change processing is performed.

  In addition, as for the update of the accommodation number management information 122 in the DB server 10, for example, the own accommodation number information 221 is updated in the call control server 20, and the contents are synchronized from the call control server 20 to the DB processing unit 111 of the DB server 10. The DB processing unit 111 may update the server management information 123 based on control from a terminal (not shown) (for example, a terminal operated by an operator). The processing may be performed based on processing (program) incorporated in the DB processing unit 111. The processing of the subscriber information 121 in the DB server 10 is performed based on not only a processing request from the subscriber information management system 2 but also control from a terminal (not shown) (for example, a terminal operated by an operator). Alternatively, it may be performed based on a process (program) incorporated in the DB processing unit 111. Further, when the content of the subscriber information 121 is changed, the DB processing unit 111 of the DB server 10 synchronizes the subscriber information with the call control server 20 corresponding to the change (the content of the subscriber information 121 and the A process of matching the contents of the accommodating subscriber information 222) may be performed.

  Further, the self-accommodating station number information 221 and the self-accommodating subscriber information 222 held by each call control server 20 may be updated based on, for example, a processing request from the DB server 10 or a terminal (not shown). For example, the data processing unit 212 may perform the control based on control from a terminal (operated by an operator).

  Next, a specific example of the subscriber accommodation change process in the IP telephone communication system 1 will be described.

  In the following, as an example of the subscriber accommodation change processing, the second call control server 20-2 is added from the state where the first call control server 20-1 is arranged, and the first call control server 20- A scenario (hereinafter, referred to as “this scenario”) in which a part of the station number 1 (a subscriber corresponding to the part of the station number) is accommodated in the second call control server 20-2 (connection change) will be described. .

  Next, the details of the subscriber accommodation change process performed in the above scenario will be described with reference to FIGS.

  9 to 15, for simplicity of description, two station numbers 0611111 and 071111 related to this scenario and two subscribers (CPE4-1 and 4) belonging to each of the two station numbers (0611111 and 0711111) are illustrated. Only items and information related to -2) are extracted and shown. Here, it is assumed that the telephone number of CPE4-1 is 061111321 (station number: 0611111, subscriber number: 4321), and the subscriber number of CPE4-2 is 071111321 (station number: 0611111, subscriber number: 4321). .

  FIG. 9 is an explanatory diagram showing the initial state of the IP telephone communication system 1 in this scenario (the initial state of this scenario).

  As shown in FIG. 9, in the initial state, the only call control server 20 arranged in the IP telephone communication system 1 is the first call control server 20-1. As shown in FIG. 9, in the initial state, the CPEs 4-1 and 4-2 are connected (accommodated) to the call control server 20-1 (state in which the REGISTER destination is set to the call control server 20-1). It shall be.

  In the initial state, as shown in FIG. 9, the server management information 123 held by the DB server 10 includes the CAID “0001” and the CA name “CA # 1” corresponding to the first call control server 20-1. Only registered.

  Further, in FIG. 9, each data (subscriber information 121, accommodation number management information 122, server management information 123) held by the DB server 10 in the initial state and each data held by the first call control server 20-1 are shown. (Self-accommodating station number information 221 and self-accommodating subscriber information 222) are also illustrated. As shown in FIG. 9, in the initial state, the subscriber information 121 held by the DB server 10 includes telephone numbers (061111321, 071111321) corresponding to the CPEs 4-1 and 4-2, and telephone numbers corresponding to the respective telephone numbers. Are registered (all CA # 1). As shown in FIG. 9, accommodation CAs (both CA # 1) corresponding to two station numbers (0611111, 0711111) are registered in the accommodation station number management information 122 held by the DB server 10. As shown in FIG. 9, information on two station numbers (0611111, 0711111) is registered in the self-accommodating station number information 221 held by the first call control server 20-1. As shown in FIG. 9, telephone numbers (061111321, 0711114321) corresponding to the CPEs 4-1 and 4-2 are registered in the self-contained subscriber information 222 held by the first call control server 20-1. ing.

  In this scenario, it is assumed that the subscriber accommodation change process has been started from the above state (the state shown in FIG. 9) with the station number “071111” as the accommodation number of the accommodation change target.

  First, it is assumed that the input of the processing request of the subscriber information from the subscriber information management system 2 to the DB server 10 is stopped (step S101). When the subscriber accommodation change process is started, data rewriting of the DB server 10 is involved, and this is a measure for suppressing data inconsistency between the subscriber information management system 2 and the DB server 10. The control method for suspending and resuming the subscriber information processing request to the subscriber information management system 2 is not limited. For example, the DB server 10 (DB processing unit 111) and other terminals (not shown) May be made to stop or restart the input of the processing request of the subscriber information based on the control of the subscriber information management system 2.

  Next, it is assumed that the second call control server 20-2 has been added to the IP network X (step S102).

  FIG. 10 shows a state of the IP telephone communication system 1 (a state in which the second call control server 20-2 is added) at the end of step S102. As shown in FIG. 10, at this point, data is not yet set in the self-accommodating station number information 221 and the self-accommodating subscriber information 222 of the second call control server 20-2 (unset state). It has become. As shown in FIG. 10, at the time of step S102, information (CAID: 0002, CA name: CA # 2) of the second call control server 20-2 is added to the server management information 123 of the DB server 10. It shall be registered.

  Next, it is assumed that station number information of a subscriber whose accommodation is to be changed is set in the DB server 10 and the second call control server 20-2 (step S103). FIG. 11 shows the state of the IP telephone communication system 1 at the end of step S103.

  As shown in FIG. 11, at the time of step S103, the assignment destination of the station number “0711111” is set to the second call control server 20-2 (CA # 2) in the accommodation station number management information 122 of the DB server 10 ( (Accommodation CA: CA # 2, station number: 071111) is added. Also, as shown in FIG. 11, at the time of step S103, the first call control server 20-1 stores the second call control server 20- in the self-accommodating station number information 221 of the second call control server 20-2. The information of the station number “0711111” to be transferred to No. 2 is added. Normally, the same station number is not set in a plurality of call control servers, but during the subscriber accommodation change process, the same station number is temporarily set to both the call control servers 20-1 and 20-2. The same station number is set.

  As described above, with respect to the update of the accommodation number management information 122 in the DB server 10, for example, the own control number information 221 is updated in the call control server 20, and the contents are transmitted from the call control server 20 to the DB processing unit 111 of the DB server 10. May be synchronized.

  Next, in the DB server 10, the subscriber to be accommodated (the subscriber whose connection destination (accommodation destination) is changed to the call control server 20-2 (that is, the subscriber of the station number "0711111") is identified by the subscriber information 121 in the DB server 10. It is assumed that the information of the CPE 4-2) has been changed to the second call control server 20-2 (CA # 2) after the accommodation change (step S104).

  FIG. 12 shows the state of the IP telephone communication system 1 at the end of step S104. As shown in FIG. 12, at the end of step S104, in the subscriber information 121 of the DB server 10, the telephone number "subscriber" of the subscriber to be accommodated (the subscriber corresponding to the station number "071111" of the accommodated object change). “0711114321” has been updated to “CA # 2”.

  As described above, with respect to the update of the accommodation number management information 122 in the DB server 10, for example, the own control number information 221 is updated in the call control server 20, and the contents are transmitted from the call control server 20 to the DB processing unit 111 of the DB server 10. Or the update of the server management information 123 may be performed by the DB processing unit 111 based on control from a terminal (not shown) (for example, a terminal operated by an operator). Alternatively, the processing may be performed based on the processing (program) incorporated in the DB processing unit 111.

  When the information of the subscriber information 121 is updated in the DB server 10, the updated content is reflected in the self-accommodated subscriber information 222 of the added second call control server 20-2 (step S105). .

  FIG. 13 shows the state of the IP telephone communication system 1 at the end of step S105. As shown in FIG. 13, at the end of step S105, the self-accommodated subscriber information 222 of the second call control server 20-2 includes the information of the subscriber whose accommodation is to be changed (the subscriber of the telephone number “0711114321”). (Telephone number: 071111321) has been added.

  Next, the exception processing means required during the subscriber accommodation change processing is added to the DB processing unit 111 of the DB server 10 (step S106).

  FIG. 14 shows the state of IP telephone communication system 1 at the end of step S106. As shown in FIG. 14, at the end of step S106, the DB processing unit 111 of the DB server 10 is in a state in which the migration processing unit 112 for performing exception processing required during the subscriber accommodation change process is added. ing.

  The transition processing unit 112 performs an exception process regarding the subscriber information of the station number of the accommodation change target (the station number registered as the accommodation station number in the plurality of call control servers 20). Specifically, the transition time processing unit 112 stores the subscriber information of the station number registered in the plurality of call control servers 20 as the accommodation station number (the station number registered over a plurality of lines) on the accommodation station number management information 122. When a processing request is input from the subscriber information management system 2, the input destination (reflection destination) of the subscriber information is allocated to the call control server 20 (here, the second call control server 20-2) of the transfer destination. In this embodiment, the migration processing unit 112 identifies the migration destination call control server 20 based on the contents of the server management information 123. As described above, in the server management information 123, the installation order of each call control server 20 can be determined based on the CAID. For this reason, in this embodiment, the processing unit 112 at the time of transfer determines that the station numbers registered as the accommodation station numbers in the plurality of call control servers 20 are the most recently set call control servers 20 (where the CAID number is the last CAID number). The call control server 20) is determined to be the call control server 20 to which the station number is to be transferred. For example, in the state of FIG. 14, two call control servers 20-1 and 20-2 are set as accommodation destinations for the station number “0711111” in the accommodation station number management information 122, but the second call control server 20- In the case of No. 2, the CAID is a later number. Therefore, the accommodation number management information 122 determines that the second call control server 20-2 is the transfer destination of the station number “0711111”. Also, the migration processing unit 112 does not identify the migration destination call control server 20 based on the contents of the server management information 123, and makes the migration processing unit 112 target the station number and the call destination The name of the control server 20 (for example, a host name) may be directly written to identify the transfer destination call control server 20.

  Next, it is assumed that the process of inputting the subscriber information from the subscriber information management system 2 to the DB server 10 has been restarted (step S107). As described above, the trigger for restarting the subscriber information input process in the subscriber information management system 2 is not limited.

  Next, for the subscriber-side device (in this embodiment, CPE4-2) of the station number to be accommodated (here, “071111”), the accommodation destination (the transmission destination of the REGISTER message) is set as the migration destination. It is assumed that the setting change process for causing the second call control server 20-2 to change the setting has been performed (step S108). The method of changing the setting for each CPE 4 is not limited. For example, the operator may perform a setting change process on each CPE 4, or may perform a setting change process on the CPE 4 connected from the transfer source call control server 20-1.

  Next, it is assumed that the process of inputting subscriber information from the subscriber information management system 2 to the DB server 10 has been stopped (step S109). As described above, the trigger for stopping the subscriber information input processing in the subscriber information management system 2 is not limited.

  Next, it is assumed that the DB processing unit 111 of the DB server 10 returns the condition of the subscriber information input process to the state before the subscriber accommodation change process (the state in which the transition processing unit 112 does not function) (step S110). ).

  Next, from the DB server 10 and the call control server 20-1, which is the transfer source of the subscriber accommodation change processing, the information used before the subscriber accommodation change processing, out of the information on the station numbers subject to the subscriber accommodation change processing. Is deleted (step S111).

  FIG. 15 shows the state of the IP telephone communication system 1 at the end of step S111. As shown in FIG. 15, at the end of step S111, the station number of the subscriber accommodation change process is changed from the accommodation station number management information 122 of the DB server 10 to the call control server 20-1 as the transfer source of the subscriber accommodation change processing. It is assumed that the information (accommodation CA: CA # 1, information of the station number: 071111) indicating that the information is to be accommodated is deleted. As shown in FIG. 15, at the end of step S111, the call control server 20-1 includes, in the self-accommodating station number information 221, information on the station number to be subjected to the subscriber accommodation change process (information of “071111”); In the self-accommodated subscriber information 222, the subscriber information of the station number to be subjected to the subscriber accommodation change process (in this embodiment, the information of the telephone number “0711114321”) is deleted.

  Next, the process of inputting subscriber information from the subscriber information management system 2 to the DB server 10 is restarted (step S112), and the process of inputting subscriber data from the subscriber information management system 2 to the DB server 10 is restarted. .

(A-3) Effects of the Embodiment According to this embodiment, the following effects can be obtained.

  In the DB server 10 (DB processing unit 111) of this embodiment, in the above-described step S106, the condition of the subscriber information input processing is changed by the function of the transition processing unit 112, and the connection destination of each CPE 4 is being changed. Also (during the processing of step S108), it becomes possible to receive a processing request for the subscriber information from the subscriber information management system 2, thereby reducing the time for suppressing the input processing (for example, registration, update, and deletion) of the subscriber information. However, there is an effect that the time not affecting the IP telephone service can be reduced.

  In the IP telephone communication system 1, as the number of subscribers (CPE4) subject to the subscriber accommodation change process increases, it takes time to change the connection destination of each CPE 4 (the process in step S108). In this case, since it is not necessary to suppress the processing for inputting the subscriber information during the change of the connection destination of each CPE 4 (during the processing of step S108), the real-time property from the service contract to the start of the service and the real-time property of the service contract change are emphasized. Problems in the services provided.

(B) Other Embodiments The present invention is not limited to the above embodiments, but may include modified embodiments as exemplified below.

  (B-1) In the above embodiment, the description has been made on the assumption that the accommodation of the subscriber is changed from the call control server 20-1 to the call control server 20-2. When adding the setting for distributing the subscriber information input destination call processing server relating to the station number, a plurality of conditions are set so that the accommodation change target station numbers are plural, and the call is distributed to the call control server 20 of a plurality of transfer destinations. You may do so.

  DESCRIPTION OF SYMBOLS 1 ... IP telephone communication system, 10 ... DB server, 11 ... Control part, 111 ... DB processing part, 112 ... Transition processing part, 12 ... Data storage part, 121 ... Subscriber information, 122 ... Accommodating station number management information, 123 ... server management information, 20, 20-1, 20-2 ... call control server, 21 ... control unit, 211 ... call control processing unit, 212 ... data processing unit, 22 ... data storage unit, 221 ... own accommodation station number information, 222: self-accommodated subscriber information, 2: subscriber information management system, 3: subscriber information, 4, 40-1, 40-2: CPE, X: IP network.

Claims (8)

Manages one or more subscriber units, a plurality of call controllers that perform call control processing for each of the subscriber units, and information on each of the call controllers and each of the subscriber units. In a communication system comprising a data processing device to
The data processing device includes:
It holds subscriber information of each of the subscriber-side devices, and is based on a processing request for subscriber information input from a subscriber information management system that manages subscriber information on each of the subscriber-side devices. Subscriber information processing means for processing information held by
Call control device information processing means for holding call control device information about each of the call control devices,
When a subscriber information processing request is input from the subscriber information management system, a selection process for selecting the call control device to which the input subscriber information request is transmitted is performed, and the input subscriber information processing is performed. Information supply means for transmitting a request to the call control device selected by the selection process,
In the course of performing a subscriber accommodation change process for accommodating the subscriber device connected to the first call control device to the second call control device, the information supply means is provided with a condition for the selection process. And a condition changing means for changing the condition.   The condition changing means may include, during the process of performing the subscriber accommodation change process, at least the subscriber side device to be subjected to the subscriber accommodation change process among the subscriber side devices connected to the first call control device. While the subscriber-side device setting change process for changing the connection destination of the first call control device to the second call control device is being performed, the condition of the selection process is set to the information supply unit. The communication system according to claim 1, wherein the communication system is changed. Each of the call control devices is provided with a telephone number indicated by a combination of a station number having a predetermined number of digits and a subscriber number having a predetermined number of digits,
The call control device information processing means holds station number management information that associates each of the call control devices with a station number,
The information supply means, when a subscriber information processing request is input from the subscriber information management system, on the station number management information held by the call control device information processing means, The communication system according to claim 2, wherein the subscriber information processing request is transmitted to the call control device corresponding to the station number of the telephone number set in (1). In the process of performing the subscriber accommodation change process, the call control device information processing unit, on the station number management information, determines the station number to be subjected to the subscriber accommodation change process with the first call control device and the second It is possible to associate both call control devices simultaneously,
The condition changing means, when the station number of the telephone number set in the subscriber information of the subscriber information request input from the subscriber information management system is a station number to be subjected to subscriber accommodation change processing, The communication system according to claim 3, wherein the information supply unit is controlled to select and transmit the second call control device for the subscriber information processing request. Call control device management means for holding call control device management information indicating the installation order of each of the call control devices,
The said condition change means discriminate | determines the said 1st call control apparatus and the said 2nd call control apparatus based on the call control apparatus management information which the said call control apparatus management means holds. A communication system according to claim 1. Manages one or more subscriber units, a plurality of call controllers that perform call control processing for each of the subscriber units, and information on each of the call controllers and each of the subscriber units. In a transition method of a communication system including a data processing device,
The data processing device includes a subscriber information processing unit, a call control device information processing unit, an information supply unit, and a condition changing unit,
The subscriber information processing means holds subscriber information of each of the subscriber-side devices, and is input from a subscriber information management system that manages subscriber information on each of the subscriber-side devices. Process the information held based on the processing request of the subscriber information,
The call control device information processing means holds call control device information regarding each of the call control devices,
When the subscriber information management request is input from the subscriber information management system, the information supply unit performs a selection process of selecting the call control device to which the input subscriber information request is transmitted, Transmitting the subscriber information processing request to the call control device selected by the selection process,
The condition changing means is configured to perform a subscriber accommodation change process for accommodating and changing the subscriber device connected to a first call control apparatus to a second call control apparatus. And changing a condition of the selection process. One or more subscriber devices, and a data processing device that manages information of a plurality of call control devices that perform call control processing on each of the subscriber devices,
It holds subscriber information of each of the subscriber-side devices, and is based on a processing request for subscriber information input from a subscriber information management system that manages subscriber information on each of the subscriber-side devices. Subscriber information processing means for processing information held by
Call control device information processing means for holding call control device information about each of the call control devices,
When a subscriber information processing request is input from the subscriber information management system, a selection process for selecting the call control device to which the input subscriber information request is transmitted is performed, and the input subscriber information processing is performed. Information supply means for transmitting a request to the call control device selected by the selection process,
In the course of performing a subscriber accommodation change process for accommodating the subscriber device connected to the first call control device to the second call control device, the information supply means is provided with a condition for the selection process. And a condition changing means for changing the condition. One or more subscriber devices, and a computer mounted on a data processing device that manages information of a plurality of call control devices that perform call control processing on each of the subscriber devices,
It holds subscriber information of each of the subscriber-side devices, and is based on a processing request for subscriber information input from a subscriber information management system that manages subscriber information on each of the subscriber-side devices. Subscriber information processing means for processing information held by
Call control device information processing means for holding call control device information about each of the call control devices,
When a subscriber information processing request is input from the subscriber information management system, a selection process for selecting the call control device to which the input subscriber information request is transmitted is performed, and the input subscriber information processing is performed. Information supply means for transmitting a request to the call control device selected by the selection process,
In the course of performing a subscriber accommodation change process for accommodating the subscriber device connected to the first call control device to the second call control device, the information supply means is provided with a condition for the selection process. A data processing program characterized by functioning as condition changing means for changing the data.

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