KR20090058339A - Voice mail system and method of processing a call in the system - Google Patents

Voice mail system and method of processing a call in the system Download PDF

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Publication number
KR20090058339A
KR20090058339A KR1020070125075A KR20070125075A KR20090058339A KR 20090058339 A KR20090058339 A KR 20090058339A KR 1020070125075 A KR1020070125075 A KR 1020070125075A KR 20070125075 A KR20070125075 A KR 20070125075A KR 20090058339 A KR20090058339 A KR 20090058339A
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South Korea
Prior art keywords
prefix
information
database
msisdn
voice mailbox
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KR1020070125075A
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Korean (ko)
Inventor
김지호
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서울통신기술 주식회사
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Priority to KR1020070125075A priority Critical patent/KR20090058339A/en
Publication of KR20090058339A publication Critical patent/KR20090058339A/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/50—Centralised arrangements for answering calls; Centralised arrangements for recording messages for absent or busy subscribers ; Centralised arrangements for recording messages
    • H04M3/53—Centralised arrangements for recording incoming messages, i.e. mailbox systems
    • H04M3/533—Voice mail systems

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephonic Communication Services (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Call processing method in a voice mailbox system according to an aspect of the present invention includes the steps of changing the prefix database to reflect the prefix information received through the user interface, and if the prefix database is changed, notifying the memory unit; If notified that the prefix database has been changed, after initializing the previously stored information, and reading the prefix information from the prefix database and storing it.

Description

Voice Mail System and Method of Processing a Call in the System}

The present invention relates to a voice mailbox system and a call processing method in a voice mailbox system, and more specifically, to a subscriber having a prefix of another operator in a voice mail system (VMS) of a specific operator. The present invention relates to a voice mailbox system supporting a number portability system that can be efficiently provided, and to a call processing method in the system.

The Mobile Number Portability (MNP) scheme means that even when a subscriber changes a mobile communication service provider, the service can be started from a new service provider without changing the telephone number of the mobile terminal received from an existing service provider. We say receiving system.

The MNP supports the subscriber to change only the network where the service is provided without changing the mobile phone number assigned by the existing operator. MNP is described in detail in 3GPP TS 23.066 Support of Mobile Number Portability (MNP) Technical Realization Phase 2.

When a user subscribes to a mobile communication service provided by a specific operator, the mobile operator first gives the subscriber an MSIN and MSISDN. The MSIN (Mobile Subscriber Identification Number) is a number used by a mobile carrier to uniquely identify a subscriber, and the Mobile Subscriber Integrated Service Digital Network (MSISDN) is a mobile terminal number of a mobile communication service subscriber.

In the past, when a subscriber receives a service from a new mobile service provider, it has to discard the MSISDN granted from the existing mobile service provider and receive a new MSISDN from the changed mobile service provider. In this case, changing the MSISDN is not only cumbersome, but also causes the inconvenience of notifying the MSISDN to someone who knows the MSISDN before the change.

However, under the number portability system, even if the subscriber changes from the existing mobile communication service provider to another mobile communication service provider, the existing MSISDN is used as it is. MNP is a function for moving MSISDN between mobile service providers.

If the calling terminal attempts to connect to the called terminal that is busy, powered-off or out of coverage in the mobile communication network, the corresponding Mobile Switch Center (MSC) receiving the call ) Inquires information about the called terminal in the Home Location Register (HLR). In this case, the MSC may know information on whether the called terminal is in a disabled state and whether the called terminal subscribes to a voice mail service (VMS).

The MSC determines whether the called terminal adopts the voice mailbox service when the called terminal is in a busy state. If the called terminal adopts the voice mailbox service, the MSC passes the call to the voice mailbox system. If the called terminal does not adopt the voice mailbox service, the MSC discards the call.

If the MSC wishes to forward the call to the voice mailbox system, it sends an Initial Address Message (IAM) to the voice mailbox system. When receiving the initialization address message, the voice mailbox system determines whether the called party subscribes to the voice mailbox service by using the called terminal information and the predetermined prefix information. To this end, the voice mailbox system assigns a specific prefix to a subscriber to be provided with the service, and provides a service only to the subscriber to which the prefix is assigned.

The voice mailbox system provides a voice mailbox service for incoming calls when the called party subscribes to the voice mailbox service.

1 is a diagram illustrating a configuration of a conventional voice mailbox system.

The existing voice mailbox system 100 includes a central processing unit 110, a memory unit 120, and a prefix database 130.

The central processing unit 110 determines whether to provide a voice mail service to the incoming call to the voice mailbox system 100. To this end, the central processing unit 110 extracts the MSISDN information of the incoming call, and searches the memory unit 120 to search whether the prefix corresponding to the MSISDN is stored. If the prefix corresponding to the MSISDN is stored, the central processing unit 110 executes a voice mail service scenario process to provide a voice mail service for the call.

Meanwhile, since the prefix database 130 described later stores the prefix information in a fixed form, when the subscriber information is changed, the central processing unit 110 reboots the service process to reset the prefix database 130.

When booting the system 100 to provide a voice mail service, the memory unit 120 reads and stores file information about a prefix stored in the prefix database 130.

In addition, when the service process is rebooted, the memory unit 120 initializes the stored information, reads the file information about the prefix from the reset prefix database 130, and stores it.

The prefix database 130 stores information on the subscriber who will provide the voice mailbox service, specifically, prefix information corresponding to the subscriber's MSISDN.

For example, assuming that the mobile operator is SKT, the prefix database 130 stores the prefix information corresponding to MSISDNs from 011-200-XXXX to 011-300-XXXX in memory 1, and 011- Prefix information corresponding to MSISDN from 400-XXXX to 011-500-XXXX is stored in memory 2, and prefix information corresponding to MSISDN from 011-600-XXXX to 011-700-XXXX is stored in memory 3 On the other hand, under the number portability scheme, the voice mailbox system 100 may need to provide a service to a subscriber having an MSISDN beginning with 016. Therefore, the prefix database 130 may further have a memory 4 that stores prefix information corresponding to MSISDNs from 016-100-**** to 016-900-****.

In this case, the prefix database 130 stores the information in a fixed form. Therefore, when the prefix information is changed, the administrator must reboot the service process to reset the prefix database 130.

2 is a diagram illustrating a process of processing a call introduced into a voice mailbox system.

In the current mobile communication network, the voice mailbox system 100 provides a voice mailbox service only to a mobile terminal subscriber to whom a prefix assigned by the voice mailbox is assigned. Furthermore, the voice mailbox system 100 may provide different types of services according to the calling number or the called number. Therefore, the voice mailbox system 100 needs to determine whether the MSISDN which is the terminal number of the caller or the called party is the number of the corresponding operator or the number for a specific service.

For this determination, the voice mailbox system 100 stores specific prefix information corresponding to the Mobile Subscriber Integrated Service Digital Network (MSISDN). When a call flows, the voice mailbox system 100 checks whether a prefix corresponding to the MSISDN of the incoming call exists. Decide whether to provide the service or terminate the call.

When a call flows in (Inbound Call) (S201), the voice mailbox system 100 extracts information of the caller and the called party (S202). The information of the caller and the called party includes a caller number (Caller) and a caller number (Called: CD). In this case, the calling number and the called number are the MSISDN of the calling terminal and the called terminal, respectively.

When the voice mailbox system 100 extracts the MSISDN of the called terminal, the voice mailbox system 100 searches the memory unit 120 to retrieve the prefix information corresponding to the MSISDN (S203).

In this case, the voice mailbox system 100 determines whether a prefix exists in order to determine whether to provide a voice mailbox service (S204).

If the prefix information exists, the voice mailbox system 100 provides a voice mailbox service to the incoming call (S205). However, if the prefix information does not exist, since the called party does not subscribe to the voice mail service or the called number corresponds to a number that cannot be received, the voice mail system 100 terminates the call (S215). This completes all call processing procedures in the voice mailbox system 100.

Thereafter, the called terminal subscriber may access the voice mailbox system 100 and listen to the stored voice message. For example, in the case of the SKT subscriber, the voice mail system 100 may be accessed by pressing * 89 and a call button to listen to the stored voice message.

FIG. 3 is a diagram illustrating a process of changing information of a subscriber in which an existing voice mailbox system provides a service.

The voice mailbox system 100 queries the memory unit 120 to determine whether to provide a service to a called terminal subscriber. To this end, when the system 100 is booted, the memory unit 120 reads the file information about the prefix from the prefix database 130 and stores it. In this case, the central processing unit 110 may search for information stored in the memory unit 120 and search whether a prefix corresponding to the MSISDN of the called terminal exists.

On the other hand, in the voice mailbox system 100 supporting the number portability system, a voice mailbox service should be provided not only to a mobile terminal having a number assigned by a corresponding operator, but also to a mobile terminal having a number assigned by another operator. To this end, when the subscriber providing the service is changed, the voice mailbox system 100 reboots the service process to reset the fixed prefix database 130 by reflecting the information about the newly added subscriber. This process is illustrated in detail in FIG. 3.

The voice mailbox system 100 determines whether information about a subscriber who receives a service from a corresponding operator is changed (S301). If the change has not been made, the service may only be provided to the subscriber to which the prefix has been previously assigned. Therefore, in this case, the subscriber information change procedure is terminated.

However, if the subscriber information to which the service provider needs to provide a service is changed (for example, a subscriber having an MSISDN granted from another service provider newly subscribes to a mobile communication service operated by the service provider), the voice mailbox system 100 Resets the prefix database 130 to reflect the changed information (S302).

As described above, the prefix database 130 manages the prefix information in the form of a fixed file. Therefore, when the information of the subscriber that the service provider provides the service in step S302 is changed, the central processing unit 110 reboots the voice mail service process to reset the prefix database 130 (S303).

When the service process is rebooted, the memory unit 120 initializes the stored information, reads the file information about the prefix from the reset prefix database 130, and stores the file information (S304).

Then, when the call flows into the voice mailbox system 100, the central processing unit 110 queries the memory unit 120 to determine whether there is prefix information corresponding to the MSISDN of the called terminal (S305), and accordingly the voice mailbox service Provide or terminate the call.

As such, the existing voice mailbox system manages the subscriber's information provided by the service provider as a fixed file, and uses a fixed method of reading the prefix information from the fixed file at system booting and storing it in the memory. do. Therefore, when the information on the subscriber providing the service is changed, the service provider must reboot the service process to reset the fixed file.

When the service process is rebooted, the service process is initialized and cannot provide a service for a certain time. This may be a fatal disadvantage in providing more reliable communication services. Furthermore, the above problem occurs more frequently under the number portability system, in which a voice mailbox service must be provided to a mobile terminal having another operator's number.

Therefore, there is a need for a method that can change the information on subscribers to provide the voice mailbox service without rebooting the service process.

Accordingly, an object of the present invention is to add a prefix corresponding to the MSISDN through a manager web interface in order to provide a voice mailbox service to a subscriber having an MSISDN granted from another operator in a voice mailbox system of a specific operator. The present invention provides a voice mailbox system and a call processing method in a voice mailbox system that can provide a seamless voice mailbox service by recognizing the prefix.

Another object of the present invention is to manage the prefix information by using a hash function to quickly search whether there is a prefix information corresponding to the MSISDN of the mobile terminal when a call flows in order to provide a voice mailbox service more quickly The present invention provides a voice mailbox system and a call processing method in a voice mailbox system.

Voice mailbox system according to an aspect of the present invention for achieving the above object, to store the prefix information of the mobile terminal to provide a service, if the administrator changes the prefix information, the prefix to reflect and manage the pre-stored information When the database and the prefix database are changed, when the TCP / IP processing unit and the prefix database are notified of the change in the memory unit, the prestored information is initialized, and the prefix information is read and stored from the prefix database. And a memory unit.

In the voice mailbox system, the prefix is set according to the MSISDN of the mobile terminal.

In the voice mailbox system, the memory unit generates a hash key value corresponding to each MSISDN of the mobile terminal, and matches and stores an MSISDN and a prefix corresponding to an address space having each hash key value.

The voice mailbox system further includes a central processing unit that determines whether to provide a voice mailbox service by searching whether a prefix exists in the memory unit when a call flows.

In the voice mailbox system, when the call flows, the central processing unit retrieves the prefix using a hash key value obtained from the MSISDN of the incoming call.

In the voice mailbox system, when the administrator adds or deletes a prefix, the voice mailbox system further comprises a user interface for adding or deleting the prefix to the prefix database.

In the voice mailbox system, the user interface activates the TCP / IP processing unit at the same time when the administrator adds or deletes a prefix.

On the other hand, the call processing method in the voice mail system according to another aspect of the present invention for achieving the above object, the step of changing the prefix database to reflect the prefix information received through the user interface and the prefix database is changed In this case, the step of notifying the memory unit, and if notified that the prefix database has been changed, after initializing the stored information, and reading the prefix information from the prefix database and storing it.

In the call processing method in the voice mailbox system, the prefix is set to correspond to the MSISDN of the mobile terminal.

In the call processing method in the voice mailbox system, reading and storing the prefix information from the prefix database generates a hash key value from each MSISDN of the mobile terminal and stores the hash key value in an address space having each hash key value. Match and save the corresponding MSISDN and prefix.

The call processing method in the voice mailbox system may further include determining whether to provide a voice mail service by searching whether a prefix exists in the memory unit when a call flows in.

In the call processing method of the voice mailbox system, when searching for a presence of a prefix in the memory unit, the prefix is searched using a hash key value obtained from an MSISDN of an incoming call.

The call processing method in the voice mailbox system may further include providing a voice mail service when the prefix exists in the memory unit and ending the call when the prefix does not exist.

The call processing method in the voice mailbox system may further include a step in which an administrator inputs prefix information through a user interface.

According to the present invention, when providing a voice mailbox service to a subscriber having an MSISDN granted from another operator, the prefix corresponding to the MSISDN is flexibly set through the administrator web interface, and the added mailbox is recognized by the voice mailbox system. It can provide uninterrupted voice mail service and can cope more efficiently with the change of subscriber number system of a specific service provider.

Hereinafter, a voice mailbox system and a call processing method in a voice mailbox system according to the present invention will be described in detail with reference to the accompanying drawings.

4 is a diagram illustrating a configuration of a voice mailbox system according to the present invention.

The voice mailbox system 400 according to the present invention includes a central processing unit 410, a TCP / IP processing unit 420, a prefix database 430, and a memory unit 440.

When the call flows, the central processing unit 410 determines whether to provide a voice mail service to the call. To this end, the central processing unit 410 extracts the MSISDN of the mobile terminal from the incoming call, and searches whether the prefix corresponding to the MSISDN exists in the memory unit 440. Hereinafter, in the present invention, the prefix corresponding to the MSISDN of the mobile terminal is defined as an MNP number.

Further, the central processing unit 410 may quickly search for the MNP number by using the hash key value obtained from each MSISDN. This will be described in more detail with reference to FIG. 6B.

The TCP / IP processing unit 420 notifies the memory unit 440 that the MNP number has been added when activated through the user interface 450 and the Transmission Control Protocol (TCP) / IP (Internet Protocol) connection. A program executed by the TCP / IP processing unit 420 will be described later in detail with reference to FIG. 6A.

Meanwhile, in the detailed description of the present invention, it is assumed that an administrator adds an MNP number, but the present invention is not limited thereto. Therefore, even when the administrator deletes or edits an existing MNP number previously stored in the prefix database 430 through the user interface 450, the present invention is equally applicable.

The prefix database 430 stores and manages an MNP number, that is, information of a subscriber to provide a service.

Table 1 compares the existing prefix database 130 and the prefix database 430 according to the present invention.

TABLE 1

 Existing Prefix Database (130)  Prefix database 430 in accordance with the present invention  Information storage mode  Fixed form  Fluid mode  When an MNP Number is Added  Reset Database  Add only that MNP number  Reboot of service process when adding MNP number  Reboot Service Process  No reboot

The prefix database 430 according to the present invention differs from the existing prefix database 130 in the MNP number management scheme.

First, unlike the conventional method of storing the MNP number information in a fixed form, the MNP number information is managed in a flexible form that can be changed.

Second, although the prefix database 130 itself has been reset when the MNP number is added, in the present invention, the administrator adds only the corresponding MNP number to the prefix database 430 through the user interface 450.

Third, although the service process is rebooted to add the MNP number, the present invention does not need to reboot the service process even when adding the MNP number.

When the memory unit 440 receives the notification that the MNP number has been added from the TCP / IP processing unit 420, the memory unit 440 initializes the information stored in the memory unit 440, and then reads the information about the prefix stored in the prefix database 430. Save it.

The memory unit 440 manages and stores the MNP number using a hash function. In more detail, the memory unit 440 generates a hash key value corresponding to each MSISDN of the mobile terminal, and stores and matches the MSISDN and the MNP number corresponding to the address space having each hash key value. In this case, a program executed by the memory unit 440 to manage the MNP number using a hash function will be described later in detail with reference to FIG. 6B.

Meanwhile, the central processing unit 410 may calculate the hash key value according to the MSISDN of the incoming call and quickly search for the MNP number by inquiring whether the corresponding hash key value is stored in the memory unit 440.

In the present invention, when the system 400 administrator wants to provide a service to a user who has additionally subscribed to the corresponding service by moving a number, the system 400 inputs an MNP number allocated to the added subscriber through the user interface 450.

The user interface 450 adds the input MNP number to the prefix database 430, and simultaneously activates the TCP / IP processing unit 420 through a Transmission Control Protocol (TCP) / IP (Internet Protocol) connection. To this end, the user interface 450 is connected to the TCP / IP processing unit 420 and the prefix database 430 of the voice mailbox system 400. Further, the user interface 450 provides a function of setting and editing the MNP number.

5 is a diagram illustrating a subscriber information change process in the voice mailbox system according to the present invention.

When the subscriber is added by the number portability system, the manager of the voice mailbox system 400 newly assigns a prefix corresponding to the MNP number, that is, the mobile terminal MSISDN (S501).

When the administrator inputs the MNP number through the user interface 450 (S502), the user interface 450 adds the input MNP number to the prefix database 430 (S503), and at the same time, the TCP through the TCP / IP connection Activate the / IP processing unit 420 (S504). Meanwhile, when adding an MNP number, carrier information and routing information may also be stored.

When activated, the TCP / IP processing unit 420 notifies the memory unit 440 that the MNP number has been added (S505). To this end, the TCP / IP processing unit 420 transmits a message informing that the MNP number has been added to the memory unit 440 through IPX communication.

When the memory unit 440 is notified by the TCP / IP processing unit 420 that the MNP number has been added, the memory unit 440 initializes the information stored in the memory unit 440 and reads information about all the prefixes stored in the prefix database 430. This is stored (S506).

As described above, in the present invention, the MNP number is stored in the prefix database 430, and it can be managed flexibly to provide a voice mailbox service without interruption of service. Since the voice mailbox service procedure is the same as the call processing procedure in the existing voice mailbox system, it will be omitted below.

FIG. 6A is a configuration of a program executed by the TCP / IP processing unit, and FIG. 6B illustrates a configuration of a program executed by the memory unit.

When an administrator assigns a MNP number to a newly added subscriber and inputs the MNP number through the user interface 450, the input MNP number is stored in the prefix database 430. Unlike in the present invention, even if the prefix database 430 is changed, the service process is not rebooted. Accordingly, the memory unit 440 should be notified that the MNP number has been added to the memory unit 440 to reflect the changed prefix database 430 information.

Performing this procedure is the program shown in FIG. 6A. When executing the program shown in FIG. 6A, the TCP / IP processing unit 420 may notify the memory unit 440 of "information that the MNP number has been added to the prefix database 430".

In operation S610, the TCP / IP processing unit 420 is activated through a TCP / IP connection with the user interface 450.

In this case, the TCP / IP processing unit 420 establishes an IPX connection with the memory unit 440, which is performed in step S620.

The user interface 450 generates a message indicating that the MNP number has been added, and transmits a message generated through the TCP / IP connection to the TCP / IP processing unit 420 (S630).

When the TCP / IP processing unit 420 receives the message from the user interface 450, the TCP / IP processing unit 420 transmits an IPX message to the memory unit 440 to inform that the MNP number has been added (S640).

In this case, recognizing that the MNP number has been added, the memory unit 440 initializes the previously stored information, reads and stores the entire prefix routing information stored in the prefix database 430 including the newly added MNP number. do.

6B shows the configuration of a program executed by the memory unit.

The voice mailbox system 400 must handle a large number of calls. In other words, the memory unit 440 should be able to quickly retrieve the prefix corresponding to the MSISDN of the mobile terminal, that is, the MNP number. To this end, in the present invention, the memory unit 440 manages information by using a hash function.

A hash function is an algorithm that converts a short-length value or key that directly accesses an address so that you can find the information you want faster. That is, the hash function h (k) is an expression for calculating an address for a certain key k, and when a key value given to the hash function is substituted, the address where desired information is stored can be known. When looking for a string of information, it is time-consuming to find and compare the information one by one. Therefore, if you calculate the hash key from the information and store the information in the place corresponding to the key (that is, the information string), it is easy to find the desired information with only one hash key calculation.

For example, when the variable k refers to the MSISDN of the mobile terminal, the hash function h (k) may be defined as in Equation (1) below. However, Equation (1) is merely an example of a hash function, the present invention is not limited to the hash function.

h (k) = 2nd numeric value of MSISDN + 3rd numeric value of MSISDN * 2342 + .... 11th numeric value of MSISDN * 23) (Equation 1)

For example, assuming that the operator allocates 400001 as a prefix number (ie, MNP number) corresponding to a mobile terminal having an MSISDN of 019-382-2540, how the program illustrated in FIG. 6B is specifically executed. Let's look at it.

Step S650 represents a process of selecting an MSISDN number to be stored at a specific address of the memory unit. In operation S650, the memory unit 440 may select the MSISDN to find an address to store the MSISDN of 019-382-2540.

In operation S660, the hash key value ID matching the selected MSISDN is calculated using a hash function, and the MSISDN and MNP number corresponding to the address having the hash key value ID are stored. That is, 019-382-2540 is substituted into Equation (1) to obtain a hash key value, and then stores an MSISDN and an MNP number corresponding to an address space having each hash key value.

After the call flows, the MNP number is stored using the hash key value obtained from the MSISDN of the incoming call (S670). Regardless of whether the number of data is 10, 1000, or 60000, the address corresponding to the hash key value needs to be searched only once, so the search speed is fast. If the address having the hash key value corresponding to the memory unit 440 does not exist, it may be determined that the incoming call is not a service target.

1 is a diagram showing the configuration of a conventional voice mailbox system.

2 is a diagram illustrating a process of processing a call introduced to a voice mailbox system.

3 is a diagram illustrating a process of changing information of a subscriber that a conventional voice mailbox system provides a service.

4 is a diagram showing the configuration of a voice mailbox system according to the present invention;

5 is a diagram illustrating a process of changing subscriber information in a voice mailbox system according to the present invention.

6A is a diagram showing the configuration of a program executed by a TCP / IP processing unit.

Fig. 6B is a diagram showing the configuration of a program executed by the memory unit.

       * Description of the symbols for the main parts of the drawings *

400: voice mailbox system 410: central processing unit

420: TCP / IP processing unit 430: prefix database

440: Memory unit 450: User interface

Claims (14)

A prefix database that stores prefix information of a mobile terminal to provide a service and reflects and manages the prefix information when the administrator changes the prefix information; A TCP / IP processing unit for notifying the memory unit when the prefix database is changed; And And a memory unit configured to read the prefix information from the prefix database and store the stored information after initializing the stored information when the prefix database is notified that the prefix database has been changed. The method of claim 1, The prefix, The voice mailbox system, characterized in that configured in accordance with the MSISDN of the mobile terminal. The method of claim 2, The memory unit, A voice mailbox system for generating a hash key value corresponding to each MSISDN of the mobile terminal, and matching and storing the MSISDN and the prefix corresponding to the address space having each hash key value. The method of claim 1, And a central processing unit for determining whether to provide a voice mail service by searching for a presence of a prefix when the call flows. The method of claim 4, wherein The central processing unit, Voice call system, where a call is retrieved using a hash key value obtained from the MSISDN of the incoming call. The method of claim 1, And a user interface for adding or deleting the prefix to the prefix database when an administrator adds or deletes a prefix. The method of claim 6, The user interface, Voice mailbox system that, when an administrator adds or deletes a prefix, simultaneously activates TCP / IP processing. Changing the prefix database to reflect the prefix information received through the user interface; Notifying the memory unit if the prefix database is changed; And And if the prefix database is notified that the prefix database has been changed, after initializing the stored information, reading the prefix information from the prefix database and storing the prefix information. The method of claim 8, The prefix, Call processing method in the voice mailbox system, characterized in that is set corresponding to the MSISDN of the mobile terminal. The method of claim 9, Reading prefix information from the prefix database and storing the prefix information may include: A method for processing a call in a voice mailbox system that generates a hash key value from each MSISDN of a mobile terminal, and matches and stores an MSISDN and a prefix corresponding to an address space having each hash key value. The method of claim 8, And determining whether to provide a voice mail service by searching for a presence of a prefix when the call flows. The method of claim 11, And searching for the prefix using the hash key value obtained from the MSISDN of the incoming call when searching for the presence of the prefix in the memory unit. The method of claim 11, And providing a voice mail service if there is a prefix in the memory unit, and ending the call if the prefix does not exist. The method of claim 8, The administrator further includes the step of entering the prefix information through the user interface.
KR1020070125075A 2007-12-04 2007-12-04 Voice mail system and method of processing a call in the system KR20090058339A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2021001875A1 (en) * 2019-07-01 2021-01-07

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2021001875A1 (en) * 2019-07-01 2021-01-07
WO2021001875A1 (en) * 2019-07-01 2021-01-07 日本電信電話株式会社 Number management system, number management method, number management device and number management program
US11683413B2 (en) 2019-07-01 2023-06-20 Nippon Telegraph And Telephone Corporation Number management system, number management method, number management device and number management program

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