JP2011049695A - Call processing device, service migration method, and service migration program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce out-of-service time by migrating user service in one and the same device in a shorter time. <P>SOLUTION: The call processing device 2a for migrating user service in the same device includes: a user management storing means for storing, for each user, migration source user data X1 for existing service having an identification number assigned to each user and a first internal number, and a migration destination user data X2 for new service having the identification number and a second internal number; a registering means for receiving the migration destination user data having the second internal number to register the migration destination user data in the user management storing means; and an updating means for receiving register information from communication equipment 4b as the migration destination after network switching, and updating the migration destination user data X2 of the user management storing means to a registered one. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a service migration technique for migrating services of the same user in the same device.

  In the communication network, subscribers are transferred between servers due to equipment renewal or switching to new equipment, etc. As a technology for transferring subscribers, new communication is available from the communication service control device used so far. When updating equipment in a service control device, there is a device that allows subscriber data registered in an existing communication service control device to be transferred to a new communication service control device so that service control can be continued.

  As a specific technique, before the subscriber data is transferred to the new communication service control device, the routing destination of the call connection connected from the call processing device is switched to the new communication service control device. Each time there is a call connection, the new communication service control device accesses the existing communication service control device, acquires subscriber data from the existing communication service control device, and writes the acquired subscriber data to a database in the own device, Control of the service is continued based on the written subscriber data. The new communication service control device accesses the existing communication service control device by referring to the database in its own device when the service contractor who has once acquired and written the subscriber data has a call connection again. It is something to avoid. (For example, refer to Patent Document 1).

  Patent Document 2 describes a service control inter-node subscriber transfer method for transferring arbitrary subscriber data to another server.

JP 2002-252700 A JP 2003-234822 A

  As described above, Patent Document 1 and Patent Document 2 describe a subscriber migration technique between different servers.

  In general, address assignment in a server specifies a subscriber by using a telephone number as key information, so that the telephone number and the subscriber data are in one-to-one correspondence.

  For this reason, when performing the subscriber migration of the same telephone number in the same server, it is not possible to use the conventional technology in which the subscriber data of the migration subscriber is input in advance and the subscriber migration is performed as described above. . Therefore, when transferring subscribers of the same telephone number in the same server, the transfer source subscriber data is deleted, and after switching the network, the transfer destination subscriber data is input to perform the subscriber transfer. For this reason, there is a problem that the time during which a network service such as a telephone cannot be used becomes long at the time of subscriber transfer.

  The present invention has been made in view of the above circumstances, and it is an object of the present invention to perform a service transition in a shorter time in a user service transition within the same server, and to prevent an unusable period during which the user cannot use the service. It is to shorten more.

  The present invention is a call processing device for performing a user service transition within the same device, and for each user, a migration source user data for an existing service having an identification number assigned to the user and a first internal number And a user management storage means for storing transfer destination user data for a new service having the identification number and the second internal number; and receiving the transfer destination user data having the second internal number, Registration means for registering in the management storage means; and updating means for receiving the register information from the destination communication device after switching the network and updating the destination user data in the user management storage means to register registration. .

  The present invention is also a service transfer method for transferring a service of a user within the same call processing device, wherein the call processing device includes, for each user, an identification number assigned to the user and a first internal number. A user management storage unit for storing the migration source user data for the existing service and the migration destination user data for the new service having the identification number and the second internal number, and the second internal number Receiving a transfer destination user data and registering it in the user management storage unit; after switching the network, receiving register information from the communication device of the transfer destination, and transferring the transfer destination user data of the user management storage unit And an update step for updating to register registration.

  The present invention is also a service migration program for executing a service migration of a user in the same computer, which is executed by a computer, and an identification number and a first internal number assigned to the user for each user. User management storage means for storing the migration source user data for the existing service having and the migration destination user data for the new service having the identification number and the second internal number, and the second internal number Registration means for accepting transfer destination user data and registering it in the user management storage means, after switching the network, receiving register information from the transfer destination communication device, registering the transfer destination user data in the user management storage means Function as an updating means for updating to

  ADVANTAGE OF THE INVENTION According to this invention, in the service transfer of the same user in the same server, a service transfer can be performed in a short time and the unusable period when a user cannot use a service can be shortened more.

1 is an overall configuration diagram of a call processing system according to an embodiment of the present invention. The image which switches existing HGW to next-generation HGW is shown. It is a block diagram which shows the structure of a subscriber system SIP server. It is a flowchart which shows the call control process of a subscriber system SIP server. It is a figure which shows an example of a number information management table. It is a figure which shows an example of a subscriber data management table. It is a sequence diagram of service transfer operation. It is a figure which shows an example of the subscriber data management table at the time of transfer destination subscriber data input. It is a figure which shows an example of the subscriber data management table at the time of individual contract information reflection to transfer destination subscriber data. It is a figure which shows an example of the subscriber data management table at the time of network switching and register information reception. It is a figure which shows an example of the number information management table at the time of network switching and register information reception. It is a figure which shows an example of the subscriber data management table at the time of transfer destination subscriber data update. It is a figure which shows an example of the subscriber data management table at the time of transfer origin subscriber data deletion.

  Embodiments of the present invention will be described below with reference to the drawings.

  In the present embodiment, service transfer is performed for subscribers having the same telephone number in the same server. In the present embodiment, a description will be given of a transition when a service is shifted from an existing service (for example, Hikari Telephone Service) to a next-generation network service when different services are provided in the same server. In this case, since the existing service and the next-generation service are different in service and have different accommodation positions (access lines), the migration source subscriber data and the migration destination subscriber data are separately accommodated in the same server.

  During the service transition, the subscriber data of the service transition target subscriber is entered as the transition destination subscriber data while keeping the source subscriber data, and is being migrated to indicate that it is a subscriber to be migrated. Set the flag. Further, since the migration source subscriber and the migration destination subscriber are held in the same server, it is possible to double manage subscriber data for the same telephone number.

  First, the system of this embodiment will be described.

(System configuration)
FIG. 1 is a connection diagram illustrating a configuration example of a system according to the present embodiment. As shown in FIG. 1, this system includes a relay SIP server 1, a subscriber SIP server 2a (call processing device), an existing router 3a, a next-generation router 3b, an existing HGW (home gateway) 4a, And next-generation HGW 4b.

  The subscriber SIP server 2a is connected to the relay SIP server 1, and the existing router 3a and the next generation router 3b are connected to the subscriber SIP server 2a. When the existing HGW 4a is connected to the existing router 3a and the service transition is completed, the next-generation HGW 4b is connected to the next-generation router 3b (indicated by a dotted line).

  The relay SIP server 1 is a server including a relay session control function based on SIP (Session Initiation Protocol) and a connection control function with another network. In the illustrated example, in addition to the subscriber SIP server 2a, another subscriber SIP server 2b is connected to the relay SIP server 1.

  The subscriber SIP server 2a is a server including a subscriber session control function based on SIP. Details will be described later.

  The existing router 3a is a router that accommodates the existing HGW 4a. The next-generation router 3b is a router that accommodates the next-generation HGW 4b after service transition.

Next, the function of the system will be described with reference to FIGS.

(System function)
Here, the case where the existing HGW 4a connected to the existing router 3a is migrated to the next generation HGW 4b connected to the next generation router 3b will be described.

  In the service transition, first, the subscriber data X2 of the transition destination subscriber of the next-generation HGW 4b that is the transition destination is set in the subscriber SIP server 2a by a maintenance operation device (not shown). The subscriber data X2 of the transfer destination subscriber includes a telephone number, an internal number, a transfer flag (transfer information), individual contract information, and the like. Since the user is a service migration target user, “in transit” is set in the in-migration flag.

  In this case, the same telephone number (identification number) is set in the subscriber data X2 of the transfer destination subscriber and the subscriber data X1 of the transfer source subscriber. However, as described above, it is not allowed that a plurality of subscriber data having the same telephone number exist in one subscriber SIP server 2a at the same time. Therefore, in this embodiment, in order to perform dual management of subscriber data for the same telephone number, different internal numbers are set in addition to the same telephone number in the migration source subscriber data and the migration destination subscriber data. Distinguish.

  At the start of the service migration, the subscriber data X1 of the migration source subscriber is in the REGISTER registration state, and the subscriber data X2 of the migration destination subscriber is not yet in the REGISTER registration state.

  First, a case where a call addressed to the existing HGW 4a enters the relay SIP server 1 from another subscriber SIP server 2b will be described. The relay SIP server 1 connects to the subscriber SIP server 2a according to the already set routing.

  The subscriber SIP server 2a searches for whether or not the transition flag is set, and if the transition flag is set, whether or not REGISTER registration to be described later is performed. Search for. If REGISTER registration has not been performed, the subscriber SIP server 2a performs incoming processing on the migration source side (route a shown in FIG. 1). When the REGISTER registration is completed, the subscriber SIP server 2a performs an incoming call on the migration destination side (route b shown in FIG. 1).

  FIG. 2 shows an image of switching the existing HGW 4a to the next-generation HGW 4b. At the same time as disconnecting the connection between the existing HGW 4a and the existing router 3a, the next-generation HGW 4b and the next-generation router are connected. When this switching is completed, the next generation HGW 4b transmits REGISTER information (registration request) to the subscriber SIP server 2a via the next generation router 3b. As a result, the transfer destination subscriber data X2 enters the REGISTER registration state.

  Here, when a call addressed to the next-generation HGW 4b enters the relay SIP server 1, the relay SIP server 1 connects to the subscriber SIP server 2a according to routing. When the subscriber SIP server 2a searches for whether or not it is a subscriber for which a migration flag is set, it can be determined whether or not the migration flag is set, so the connection processing to the next-generation HGW 4b at the migration destination is performed. (Route b shown in FIG. 1).

  Next, the subscriber SIP server 2a among the constituent devices of the present system that realizes the functions of the system described above will be described.

(Configuration of subscriber SIP server 2a)
FIG. 3 is a diagram showing a configuration example of the subscriber SIP server 2a in the system of FIG. 1, and conceptually shows only a part related to the present invention among the functions of the subscriber SIP server 2a.

  The subscriber SIP server 2a includes a signal transmission / reception unit 21a, a data storage unit 22a, a call processing unit 23a, and a data registration / update unit 24a.

  The signal transmission / reception unit 21a has a function of performing transmission / reception of signals such as INVITE and REGISTER signals.

  The data storage unit 22a has a function of storing a subscriber data management table 221a (user management storage unit) and a number information management table 221b, which will be described later. The subscriber data management table 221a stores migration source subscriber data and migration destination subscriber data. The number information management table 221b is a table for dual management of the same telephone number at the migration source and the migration destination, and details will be described later.

  The call processing unit 23a has a function of performing call processing based on SIP, and includes a call processing control unit 231a, a migration flag search unit 232a, and a REGISTER search unit 233a.

  The call processing control unit 231a has a function of controlling the entire call processing based on SIP. The migration flag search unit 232a is activated from the call processing control unit 231a, accesses the subscriber data management table 221a, searches whether the migration flag is set in the corresponding subscriber data, and obtains the search result. It has a function of sending to the call processing control unit 231a.

  The REGISTER search unit 233a is activated from the call processing control unit 231a, accesses the subscriber data management table 221a, searches whether the corresponding subscriber data is in the REGISTER registration state, and sends the search result to the call processing control unit. 231a.

  The data registration / update unit 24a receives a transfer destination subscriber data registration request from the maintenance operation management apparatus, and registers the transfer destination subscriber data in the subscriber data management table 221a. When the data registration / update unit 24a receives REGISTER information from the next-generation HGW 4b via the next-generation router 3b, the data registration / update unit 24a performs REGISTER registration of the next-generation HGW 4b and stores the next-generation HGW 4b in the subscriber data management table 221a. The corresponding subscriber data of the migration destination is updated to the REGISTER registered status.

  The subscriber SIP server 2a described above can use, for example, a general-purpose computer system including a CPU, a memory, an external storage device such as an HDD, an input device, and an output device. In this computer system, each function of the subscriber SIP server 2a is realized by the CPU executing a program for the subscriber SIP server 2a loaded on the memory.

  Next, the operation of the system of this embodiment will be described.

(System operation)
FIG. 4 is a flowchart showing the call processing (logic for determining the incoming call to the migration source or the migration destination) of the subscriber SIP server 2a. Here, a case where the signal transmitting / receiving unit 21a receives an INVITE signal is shown.

  When the signal transmission / reception unit 21a receives the INVITE signal (step S11), the migration flag search unit 232a refers to the number information management table 222a and the subscriber data management table 221a to determine whether the migration flag is set. Search is performed (step S12). That is, the in-migration flag search unit 232a acquires the internal number of the inactive state (that is, the subscriber data of the migration destination) in the telephone number designated by the INVITE signal from the number information management table 222a. Then, the in-migration flag search unit 232a acquires the record of the telephone number designated by the INVITE signal and the acquired internal number from the subscriber data management table, and the in-migration flag is set in the acquired record. It is determined whether or not.

  When the migration flag is set in the acquired record (step S12: present), the REGISTER search unit 233a determines whether or not the record is registered in REGISTER (step S13).

  When REGISTER registration is not performed (step S13: None), the call processing control unit 231a performs incoming processing at the migration source (step S14), and the signal transmitting / receiving unit 21a sends the INVITE signal to the existing router 3a. Transmit (step S17).

  In step S12, when the migration flag is not set in the acquired record, the REGISTER search unit 233b searches whether REGISTER registration is performed (step S15). When REGISTER registration is performed (step S15: present), the call processing control unit 231a performs incoming processing at the transfer destination (step S16), and the signal transmitting / receiving unit 21a sends the INVITE signal to the next-generation router 4b. Transmit (step S17).

  On the other hand, if REGISTER registration has not been performed, that is, if any of the acquired records has not been registered (step S15: none), the call processing control unit 231a determines that there is an error, and the signal transmission / reception unit 21a transmits an error (step S18).

  In step 12, when the inactive internal number for the telephone number specified by the INVITE signal does not exist in the number information management table 222a, it is determined that the subscriber is not in transition, and the call processing control unit 231a The incoming / outgoing process at the migration source is performed, and the signal transmitting / receiving unit 21a transmits the INVITE signal to the existing router 3a.

  Next, a dual management method for the same telephone number will be described.

  FIG. 5 shows a number information management table 222a for dual management for the same telephone number. The number information management table has a telephone number, an internal number, and a status (active or inactive), and indexes the internal number using a key.

  Since the migration source telephone number and the migration destination telephone number are the same telephone number, different internal numbers are set for distinction. That is, the telephone number and the internal number are managed as combination number information. The number information is set to either the active state or the inactive state, and basically the incoming call processing is performed using the number information in the active state.

  In the following description, the telephone number of the source subscriber and the telephone number of the destination subscriber have the same telephone number 0422-99-9999, the internal number of the source subscriber is 1, and the destination number The internal number of the subscriber is 2. It should be noted that the internal number 1 is active and the internal number 2 is inactive before the service transition.

  FIG. 6 shows an example of the subscriber data management table 221a, and shows portions related to the present embodiment.

  The subscriber data management table 221a holds data of each subscriber, and includes a telephone number, an internal number, a migration flag, IP address information, REGISTER information, and individual contract information. In the example shown in the figure, it is shown that the record with the internal number 1 is migration source subscriber data, and the record with the internal number 2 is migration destination subscriber data. In addition, it is assumed that predetermined data is set in the portion of the subscriber data management table 221a illustrated as “present”. For example, when the IP address information is “present”, the IP address value is set, and when the individual contract information is “present”, “0” (not contracted) or “1” (contracted) is set. The

  In the in-transition flag, “in operation” indicating that the record of the corresponding telephone number and internal number is in operation or “in transition” indicating that the subscriber is a service transfer target subscriber is set. That is, in the service transfer from the transfer source subscriber to the transfer destination subscriber, “in transfer” is set as the transfer target subscriber.

  In the IP address information, an “IP address” indicating an accommodation position in the server that provides an existing service or a next-generation service is set. In the REGISER information, “REGISTERED” or “UNREGISTERED” indicating whether or not the REGISTER information from the HGW device is received and the REGISTER is registered is set. That is, the REGISTER information indicates the presence / absence of REGISTER information from the existing router or the next-generation router. In the individual contract information, various types of contract information indicating contract contents are set. In the service migration, the contents of the individual contract of the migration source subscriber data are reflected in the individual contract information of the migration destination subscriber data.

  FIG. 7 shows a service migration operation sequence.

  In the service migration, the migration destination subscriber data is input from the maintenance operation management device 51 to the subscriber SIP server 2a, and the data registration / update unit 24a registers the migration destination subscriber data in the subscriber data management table (step S21). The input information includes a telephone number, an internal number, user information including information on migration, IP address information, individual contract information (initial value), and the like.

  FIG. 8 is a diagram showing a subscriber data management table when the transfer destination subscriber data is input in step S21. For the transfer destination subscriber data (hatched portion), an internal number different from the internal number of the transfer source subscriber data, a transfer flag (in transfer), IP address information, and individual contract information (initial value) are set. The transfer source subscriber data is assumed to be registered in advance in the subscriber data management table.

  Then, the maintenance operation management apparatus 51 refers to the individual contract information of the migration source subscriber data in the subscriber data management table (step S24), acquires the individual contract information of the migration source subscriber data (step S25), and obtains it. The contract information of the transfer destination subscriber data is set as the individual contract information (step S26). The data registration / update unit 24a updates the migration source subscriber data in accordance with an instruction from the maintenance operation management device 51.

  FIG. 9 is a diagram showing the subscriber data management table in step S26, in which the individual contract information from the migration source subscriber data is reflected in the individual contract information (hatched portion) of the migration destination subscriber data. is there.

  Until the time point of step S26, when a predetermined subscriber 52 transmits an INVITE signal (step S22), the INVITE signal is transmitted to the existing HGW 3a (source subscriber 53 via the existing router 3a providing the existing service). ) (Step S23). The subscriber 52 is an existing HGW 4a or a next-generation HGW 4b other than the migration target person.

  When all the migration destination subscriber data necessary for the service migration are set, network switching is performed (step S27). That is, for the service transition, as described with reference to FIG. 2, the connection between the existing HGW 4a and the existing router 3a is disconnected, and at the same time, the next-generation HGW 4b and the next-generation router 4b are connected.

  Thereby, REGISTER is transmitted from the next-generation HGW 4b of the migration destination via the next-generation router 3b, and the signal transmission / reception unit 21a of the subscriber SIP server 2a receives the REGISTER (step S28). REGISTER includes an expiration date, an IP address, a telephone number, and the like.

  Upon receipt of REGISTER, the data registration / update unit 24a performs next-generation HGW4b REGISTER registration, updates the data in the subscriber data management table and the number information management table, replaces the number information in operation, and migrates The number information of the former subscriber is set to be in operation while the number information of the transfer destination subscriber is in operation.

  Specifically, as shown in the subscriber data management table of FIG. 10, since the existing router 4a is disconnected from the network, the IP address information of the migration source subscriber data is deleted and becomes “none” (hatched portion). , REGISTER registration of the subscriber data of the migration destination will be “registered” hatched part).

  Also, as shown in the number information management table of FIG. 11, the number information in operation (active) and the number information in non-operation (inactive) are switched when REGISTER is received from the next-generation next-generation HGW 4b. Specifically, the internal number 1 of the telephone number 0422-99-9999 in the active state shown in FIG. 11 (a) is set to 2, and the telephone number 0422-99-9999 in the inactive state shown in FIG. 11 (b). The internal number 2 is replaced with 1. As a result, internal number 1 is set to inactive and internal number 2 is set to active. In other words, the migration source subscriber data is set while the migration destination subscriber data is in operation and the migration source subscriber data is not in operation.

  After the data update process as shown in FIG. 10 and FIG. 11 is completed, when a predetermined subscriber 52 transmits an INVITE signal (step S29), the INVITE signal is a next-generation service providing a next-generation service. The incoming call arrives at the next generation HGW 4a (source subscriber 54) via the router 4a (step S30).

  Subsequently, upon receiving an instruction to update the transfer destination subscriber data from the maintenance operation management apparatus 51, the data registration / update unit 24a updates the subscriber data management table (step S31). FIG. 12 is a diagram showing the update of the migration destination subscriber data in step S31, and the migration flag of the migration destination subscriber data is updated from the migration to the operation (hatched portion).

  Then, upon receiving an instruction to delete the migration source subscriber data from the maintenance operation management apparatus 51, the data registration / update unit 24a updates the subscriber data management table (step S32). FIG. 13 is a diagram showing deletion of the migration source subscriber data in step S32, in which the migration flag is set to “empty (space)”, and the REGISTER information and the individual contract information are updated to “none” (partially hatched). .

  In the present embodiment described above, in the service transition of the subscriber having the same telephone number in the same server, the service transition can be performed in a shorter time, and the unavailable period during which the user cannot use the service can be further shortened. it can. That is, in this embodiment, by performing a service migration within the same server in a short time, a period during which a network service such as a telephone service cannot be used can be shortened, and a prompt communication can be realized after the service migration.

  Specifically, in the present embodiment, when performing service migration, the subscriber data of the migration destination subscriber data is stored in the subscriber data management table while the migration source subscriber data remains for the subscriber data of the service migration target subscriber. Register and set a migration flag to indicate that it is a subscriber to be migrated. In addition, since the source subscriber and the destination subscriber are held in the same server, a different internal number is set in addition to the telephone number, the telephone number and the internal number are defined as combination number information, and the number Service transition is performed by setting active (in operation) / inactive state (not in operation) to information and replacing the number information in the active / inactive state.

  Thereby, in this embodiment, compared with the case where the migration source subscriber data is deleted and the migration destination subscriber data is input after the network switching and the subscriber migration is performed, the service interruption time associated with the service migration is longer. It becomes shorter and the convenience of the subscriber can be improved.

  Further, since the service migration can be realized in the same server, it is not necessary for the communication carrier to construct a system for service migration, so that the service migration cost can be reduced.

  Further, in the present embodiment, when performing call processing, it is determined whether or not the transition flag is set, and if the transition flag is set, It is determined whether or not the REGISTER signal is registered. When the REGISTER signal is not registered, the migration source side receives the REGISTER signal and, after completing the REGISTER registration, performs the incoming call processing on the migration destination side. Thereby, the service interruption time accompanying the service transition can be shortened as much as possible.

  In addition, this invention is not limited to the said embodiment, Many deformation | transformation are possible within the range of the summary.

DESCRIPTION OF SYMBOLS 1 Relay system SIP server 2a Subscriber system SIP server 21a Signal transmission / reception part 22a Data storage part 221a Subscriber data management table 222a Number information management table 23a Call processing part 231a Call processing control part 232a Transition flag search part 233a REGISTER search part 24a Data registration / update unit 2b Other subscriber SIP server 3a Existing router 3b Next generation router 4a Existing HGW
3b Next generation HGW

Claims (6)

A call processing device that performs a user service transition in the same device,
For each user, the migration source user data for the existing service having the identification number assigned to the user and the first internal number, and the migration destination user for the new service having the identification number and the second internal number User management storage means for storing data;
Registration means for accepting transfer destination user data having the second internal number and registering it in the user management storage means;
A call processing apparatus comprising: update means for receiving register information from a transfer destination communication apparatus after network switching and updating transfer destination user data in the user management storage means to register registration completed. The call processing device according to claim 1, wherein
The migration destination user data received by the registration means includes a migration flag indicating that the service is being migrated,
The update means updates the migration destination user data in the user management storage means to the registered register, and then updates the migration flag of the migration destination user data to the operational flag,
When a call connection request is accepted, the user management storage means is referred to and a transition flag search is performed to search whether a transition flag is set in the migration destination user data having the identification number specified in the call connection request Means,
A register search unit that refers to the user management storage unit and searches for whether or not the migration destination user data having the identification number specified in the call connection request has been registered;
When the migration flag is set in the migration destination user data and the register is not registered, the call connection request is transmitted to the communication device for the existing service, and
When the migration flag is set in the migration destination user data and the register is already registered, and when the migration flag is not set in the migration destination user data and the register is registered Call processing control means for transmitting the call connection request to the communication device for the new service when it has been completed. A service migration method for performing a user service migration in the same call processing device,
The call processing device includes:
For each user, the migration source user data for the existing service having the identification number assigned to the user and the first internal number, and the migration destination user for the new service having the identification number and the second internal number A user management storage unit for storing data;
A registration step of accepting transfer destination user data having the second internal number and registering it in the user management storage unit;
An update step of receiving register information from the transfer destination communication device after network switching and updating the transfer destination user data in the user management storage unit to register registration completed. The service transition method according to claim 3,
The migration destination user data received in the registration step includes a migration flag indicating that the service is being migrated,
The update step updates the migration destination user data in the user management storage unit to the registered flag, and then updates the migration flag of the migration destination user data to the operational flag,
When a call connection request is accepted, the user management storage unit is referred to and a migration flag search is performed to search whether a migration flag is set in the migration destination user data having the identification number specified in the call connection request. Steps,
A register search step for referring to the user management storage unit and searching whether or not the migration destination user data having the identification number specified in the call connection request has been registered.
When the migration flag is set in the migration destination user data and the register is not registered, the call connection request is transmitted to the communication device for the existing service, and
When the migration flag is set in the migration destination user data and the register is already registered, and when the migration flag is not set in the migration destination user data and the register is registered And a call processing control step of transmitting the call connection request to the communication device for the new service if it has been completed. A service migration program executed by a computer and performing a user service migration within the same computer,
In the computer,
For each user, the migration source user data for the existing service having the identification number assigned to the user and the first internal number, and the migration destination user for the new service having the identification number and the second internal number User management storage means for storing data,
Registration means for accepting transfer destination user data having the second internal number and registering it in the user management storage means;
A service migration program, which functions as update means for receiving register information from a migration destination communication device after network switching and updating migration destination user data in the user management storage means to register registration completed. The service migration program according to claim 5,
The migration destination user data received by the registration means includes a migration flag indicating that the service is being migrated,
The update means updates the migration destination user data in the user management storage means to the registered register, and then updates the migration flag of the migration destination user data to the operational flag,
When a call connection request is accepted, the user management storage means is referred to and a transition flag search is performed to search whether a transition flag is set in the migration destination user data having the identification number specified in the call connection request means,
A register search unit that refers to the user management storage unit and searches for whether or not the migration destination user data having the identification number specified in the call connection request has been registered;
When the migration flag is set in the migration destination user data and the register is not registered, the call connection request is transmitted to the communication device for the existing service, and
When the migration flag is set in the migration destination user data and the register is already registered, and when the migration flag is not set in the migration destination user data and the register is registered A service transition program that further functions as call processing control means for transmitting the call connection request to the new service communication device.

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