KR20050072335A - Method and system for providing additional number service on mobile communication network - Google Patents

Abstract

The present invention relates to a method and apparatus for providing an additional number service in a mobile communication network, and more particularly, to a method and apparatus for effectively displaying an additional number of an additional number service in providing a calling number display function to a terminal of a counterpart user. will be.

The method for providing an additional number service according to the present invention includes receiving a first incoming call number and a first call request from an additional number service subscriber, and providing the subscriber with a list of additional telephone numbers. Including a plurality of additional telephone numbers associated with the subscriber's additional number service, selecting one additional telephone number from the list of telephone numbers from the subscriber, and a first telephone number using the selected additional telephone number as an outgoing telephone number. Sending a call setup request to a mobile communication switch, wherein the outgoing telephone number is displayed on a user's mobile communication terminal associated with the first incoming telephone number.

According to the present invention, an additional number provided by the additional number service can be effectively displayed on the counterpart's mobile communication terminal.

Description

METHOD AND SYSTEM FOR PROVIDING ADDITIONAL NUMBER SERVICE ON MOBILE COMMUNICATION NETWORK}

The present invention relates to a method and apparatus for providing an additional number service in a mobile communication network, and more particularly, to a method and apparatus for effectively displaying an additional number of an additional number service in providing a calling number display function to a terminal of a counterpart user. will be.

The remarkable development of mobile communication today has rapidly promoted the popularization of mobile communication terminals, transforming our lives so that most ordinary people always carry mobile terminals such as mobile phones and PDAs. The mobile communication terminal has an effect of allowing the user to more easily access the communication network while efficiently allocating system resources of the conventional communication system.

In addition, the current mobile communication service not only provides a communication service for a voice call, but also provides various additional services suitable for a user's preference. As one of these additional services, an "additional number service" for assigning two or more telephone numbers to one mobile communication terminal to allow a subscriber to select and receive a desired telephone number is widely used. Examples of additional number services currently provided by domestic mobile carriers include SK Telecom's Number Plus service and KTF's Two Number service.

Most mobile communication terminal users use one phone number assigned to one mobile communication terminal. As the structure of society and work becomes more complicated, some users require more than two phone numbers. In this case, there is a method of using two or more mobile communication terminals, but a plurality of mobile communication terminals are not only inconvenient to carry, but also have disadvantages of excessive usage fees. However, when using the "additional number service" described above, two or more plural telephone numbers are given to one mobile communication terminal so that subscribers can properly promote their plural telephone numbers to other users so as to suit their purpose or use. You can choose to receive a call. The additional number may be classified as a work or personal phone number as necessary, and as an example, the subscriber of the additional number service may selectively pick up a call received from the work phone number or immediately hand it over to the voicemail.

In an additional number service that provides two telephone numbers, which of two additional numbers (first additional telephone number and second additional telephone number) is the call of the other party to the mobile communication terminal of the additional number service subscriber? It can be distinguished by displaying an additional number. In addition, it is also possible to distinguish the incoming ring tone by different subscriber addition numbers.

However, in the conventional additional number service, only the first additional telephone number (also referred to as "representative telephone number") and the second additional telephone number can be received, and the outgoing telephone number cannot be displayed. That is, in the case of an outgoing call where the subscriber of the additional number service calls another user, only one telephone number (for example, a representative telephone number as the first additional telephone number) is provided to the mobile terminal of the user regardless of who the user is. Displayed, and the remaining second additional telephone number is not displayed.

For this reason, the conventional additional number service has the following problems. For example, when the subscriber of the additional number service informs user A of the first additional telephone number "xxx-1000" and user B the second additional telephone number of "xxx-1001", the subscriber When calling A, it is not a problem that the calling party number of the subscriber is displayed as the first additional telephone number "xxx-1000" in the user A's mobile communication terminal. However, if the subscriber's outgoing telephone number is also displayed as the first additional phone number in the mobile communication terminal of User B when the subscriber calls the user B, in this case, the user B only needs the first additional phone number. The subscriber of the additional number service may not be recognized properly.

Accordingly, in order to provide an additional number service more effectively, in providing an outgoing telephone number display function to a terminal of a receiver, a method and a system capable of appropriately displaying an additional phone number of an additional number service according to a counterpart are required.

The present invention has been made to improve the above-described prior art, and an object of the present invention is to effectively display an additional number provided by an additional number service on a counterpart's mobile communication terminal.

Another object of the present invention is to provide a method and apparatus for easily selecting an additional number known to the other party as an outgoing telephone number when the additional number service subscriber makes a call request to the other party.

Another object of the present invention is to allow an additional number service subscriber to automatically display an outgoing telephone number on a counterpart's mobile communication terminal without a separate selection process for the additional number.

In order to achieve the above object and to solve the problems of the prior art, according to an aspect of the present invention, the step of receiving a first incoming call number and the first call request from the additional number service subscriber, and provides a list of additional phone numbers to the subscriber The additional telephone number list includes a plurality of additional telephone numbers associated with the additional number service of the subscriber, receiving a selection of one additional telephone number from the telephone number list from the subscriber, and the selected additional Transmitting a first call setup request with a telephone number as an outgoing telephone number to a mobile communication switch, wherein the outgoing telephone number is displayed on a mobile communication terminal of a user associated with the first incoming telephone number; An additional number service method in a mobile communication network is provided.

According to another aspect of the invention, the step of receiving a first call call setup request for the additional number service subscribers from the user, wherein the first call call setup request includes an outgoing telephone number and the first incoming telephone number; Storing the outgoing call number in a database as an additional phone number associated with a first incoming call number, and receiving a second call call setup request for the user from the subscriber, wherein the second call call setup request is received. Includes a second called telephone number; retrieving the additional telephone number of the subscriber associated with the second called telephone number with reference to the database; and a second using the retrieved additional telephone number as the calling telephone number. Sending a call setup request to a mobile communication exchange, the outgoing telephone number being the same as the second incoming telephone number; The additional number service method in a mobile communication network comprising the steps in the mobile terminal of the associated user is provided.

1 is a diagram illustrating each step performed in a mobile communication terminal to provide an additional number service according to the present invention.

First, in step S110 receives the incoming telephone number and the call request for the call request from the additional number service subscriber. The subscriber can perform the call request by inputting the telephone number of the user he wants to talk to as a called phone number to the mobile communication terminal.

Next, in step S120 to provide a subscriber list of telephone numbers. "List of telephone numbers" means a list (or list) including a plurality of additional numbers assigned to additional number service subscribers. A user of a mobile communication terminal requests a plurality of additional numbers by applying for additional number services to a mobile carrier. Can be assigned. According to the present invention, the number of additional numbers is not limited to two, and it is also possible to provide additional numbers for more numbers.

In step S130, one of the plurality of telephone numbers is selected from the subscriber. The additional number received by the subscriber of the additional number service is selectively advertised to other users according to their needs, and in this step, the subscriber selects his additional number known to the user he wants to call. Done.

2A to 2C illustrate examples of a phone number list screen and a selection input screen provided to subscribers.

As shown in FIG. 2A, when an incoming telephone number to be called from an additional number service subscriber is input, as shown in FIG. 2B, the subscriber provides a plurality of additional number lists of the subscriber. The subscriber selects the desired outgoing telephone number from the list of telephone numbers and presses the call button, and the incoming telephone number and the outgoing telephone number are displayed on the subscriber's mobile communication terminal (see FIG. 2C).

In step S140, the call setup request is transmitted to the mobile communication switch using the selected telephone number as the calling telephone number. By the caller ID display function, the caller ID is displayed on the user's mobile communication terminal.

According to the embodiment related to Fig. 1, an additional number service subscriber can select an additional telephone number desired by the user according to the user's incoming telephone number so that an appropriate outgoing telephone number suitable for the user can be displayed on the user's terminal. Meanwhile, according to the embodiment of FIG. 1, an additional number service subscriber may have to select an additional phone number for each call. In order to avoid such inconvenience, the additional number service providing method according to the present invention further provides another preferred embodiment. Thus, a further embodiment will be described in detail with reference to FIG. 1.

First, in step S150, the mobile communication terminal stores the call log associated with the steps S110 to S140 in the database. As an example of a call record, the outgoing telephone number selected by the subscriber is stored in the database as an additional telephone number associated with the called telephone number. The outgoing and incoming phone numbers stored in the database can be used when requesting a recall from the subscriber to the user.

In step S160, a new call request (recall request) is received from the subscriber. In addition to the call request, a new incoming telephone number is received from the subscriber.

In step S170, the subscriber's additional telephone number (outgoing telephone number) may be retrieved from the call log previously associated with the called telephone number by referring to the database. If one subscriber (user) additional number service subscriber is always recognized with the same additional number, the incoming call number and the outgoing call number will be 1: 1 mapped.

In step S180, the call setup request is transmitted to the mobile communication exchange using the searched additional telephone number as the outgoing telephone number.

As described above, according to the embodiment of FIG. 1, when the subscriber of the additional number service calls the other party (user), the first party to make a call selects the outgoing telephone number as above and makes a call. For the second and subsequent calls to (recall), the mobile terminal can automatically select the calling phone number itself. In addition, when the subscriber of the additional number service wants to change the outgoing phone number associated with the other party, the subscriber can receive a new outgoing phone number to be changed from the subscriber and re-stores the changed phone number in the same manner as above. Can be made available. Therefore, the subscriber of the additional number service can obtain the effect of displaying his additional number more conveniently on the counterpart's mobile communication terminal.

3a to 3c provide yet another embodiment according to the present invention another method for receiving an outgoing telephone number from the subscriber of the additional number service. In FIG. 2A to FIG. 2C, an incoming telephone number is first inputted and then an additional telephone number is selected, whereas in FIGS. 3A to 3C, an additional telephone number is selected first and an incoming telephone number corresponding to the additional number is selected. There is.

That is, if you want to make a telephone call for business as shown in Figure 3a, after selecting the additional telephone number (011-xxx-1000) corresponding to the business, then the incoming telephone number from the telephone number list for the business as shown in Figure 3b Will be selected (enter).

As another embodiment, as shown in FIG. 3C, when one additional phone number is set for the other party's incoming phone number, the set additional phone number is automatically dialed for a call request input after the setting. By inputting the number, it is possible to eliminate the hassle of having to enter an additional telephone number each time in addition to the incoming telephone number each time a call is requested.

4 is a block diagram illustrating a configuration of a mobile communication terminal for providing an additional number service shown in FIG. 1 according to the present invention.

As shown in FIG. 4, the mobile communication terminal 400 according to the present invention includes a call request input unit 410, a phone number storage unit 420, a phone number display unit 430, and a call request transmitter 440. do.

The call request input unit 410 receives an incoming call number and a call request from the subscriber of the additional number service. As an example of the call request input unit 410, a keypad of a mobile communication terminal may be used, and a subscriber may complete a call request by inputting an incoming telephone number through the keypad and then pressing a "send" button.

The phone number storage unit 420 stores a phone number list including a plurality of phone numbers associated with the subscriber's additional number service. As an example of the telephone number storage unit 420, a memory of the mobile communication terminal may be used.

The phone number display unit 430 displays the stored phone number list on the display in response to the call request received by the call request input unit 410. The subscriber can select one telephone number from the list of telephone numbers displayed on the telephone number display unit 430 through the call request input unit 410.

The call request transmitter 440 transmits a call call setup request to the mobile communication switch using the phone number selected through the call request input unit 410 as the outgoing phone number.

The mobile communication terminal according to the present invention provides an additional embodiment for enabling a call to be made even when the additional number service subscriber requests a recall to the other party without separately selecting an outgoing telephone number from the additional number list.

The phone number storage unit 420 stores the outgoing phone number first inputted through the call request input unit 410 as an additional phone number associated with the called phone number. That is, when the incoming phone number is input through the call request input unit 410, the phone number storage unit 420 determines whether to store the additional phone number associated with the incoming phone number, and if it is not stored, the outgoing phone number. Store as an additional phone number associated with the called phone number. The additional phone number and the called phone number can be stored in the form of a database.

If the subscriber inputs a re-call request to the other party, the subscriber receives an incoming call number and a call request through the call request input unit 410.

The call request transmission unit 440 searches for an additional phone number associated with the called phone number with reference to the phone number storage unit 420, and makes a call call setup request for making the retrieved additional phone number an outgoing phone number. Will be sent to. As an example of the call request transmitter 440, a wireless communication module and an antenna of a mobile communication terminal may be used, and are connected to a mobile communication exchange through a mobile communication network.

Figure 5 shows an example of the internal configuration of the database 500 for the telephone number storage unit 420 according to the present invention. As shown in FIG. 5, the database 500 may further include detailed information on a call time and a call time in addition to the incoming call number and the additional phone number. According to Fig. 5, the subscriber of the additional number service has a user A having a telephone number of "XXX-9000" (first called number) and a user B having a telephone number of "XXX-9001" (second called number). Each call record is stored. Two additional numbers are assigned to the subscribers, and the user A was called with an additional telephone number of "XXX-1000" and the user B with an additional telephone number of "XXX-1001". Thus, when a subscriber enters a re-call request for User B, retrieve the subscriber's additional telephone number ("XXX-1001") for User B by searching for User B's incoming phone number ("XXX-9001"). It is possible to automatically send a call setup request for the retrieved additional phone number.

6A illustrates protocol hierarchy and data processing in a mobile communication terminal. As shown in FIG. 6A, the called phone number in the terminal may be inserted into the Protocol Data Unit (PDU) of Layer 3, and the outgoing phone number may be added in the addressing sublayer in the LAC sublayer. . 6A illustrates a series of processes in which LAC PDUs and MAC SDUs are finally formed as data is added for each layer.

6B illustrates an example of a header structure added for transmission of an outgoing telephone number in the addressing sublayer. In the header structure, the MSID is a mobile station identifier for a mobile communication terminal and means an outgoing telephone number according to the present invention.

7 is a diagram illustrating processing of an outgoing telephone number (additional telephone number) in an exchange / VLR, in order to provide an additional number service according to the present invention. Hereinafter, referring to FIG. 7, a brief description will be given of how additional telephone numbers are handled in a communication network.

The call establishment request message (Origination) is transmitted from the mobile communication terminal of the additional number service subscriber to the exchange through the base station. The call setup request message includes an outgoing telephone number and an incoming telephone number.

The exchange translates the outgoing and incoming phone numbers in the message after receipt of the message. In a preferred embodiment, the location information for the subscriber is stored so that the location information of the subscriber identified as a result of any additional number (calling phone number) translation is equally recognized for all the plurality of additional numbers assigned to the subscriber. In this case, location information of a plurality of additional numbers must be registered together in the same Home Location Register (HLR). In addition, in the HLR, even when the call is made by using any one of a plurality of additional numbers, a function related to a billing server interworking should be supplemented to enable charging with a specific additional number (for example, "representative number").

1 and related embodiments so far are directed to a method of selecting an outgoing telephone number indication in a subscriber's mobile communication terminal using an additional telephone number. Such embodiments have the advantage that it can be implemented relatively simply by simply changing the protocol of the terminal without changing the main system (eg, exchange, HLR, etc.) of the communication network.

However, the above-mentioned embodiments have a problem of selecting a caller ID number (additional phone number) when calling the other party (user), and for a plurality of users, the caller ID number is stored or stored for each user. There is an inconvenience to put it. Hereinafter, when the subscriber of the additional number service attempts to make a phone call, the subscriber does not automatically designate the outgoing phone number (additional phone number) to the call request, but automatically transfers the outgoing phone number according to the other party on the mobile communication system. The method will be described. Such a method can be serviced by building an exchange or a server interworked with the exchange on a mobile communication system. Hereinafter, embodiments will be described with reference to FIG. 8.

8 is a flowchart illustrating a method for providing an additional number service in a mobile communication network according to the present invention. Hereinafter, referring to FIG. 8, the processes performed in each step will be described in detail.

First, in step S810, a call setup request for an additional number service subscriber is received from a user. When the other party (user) calls the subscriber using the additional number service, the user sends a call setup request, which includes the user's outgoing telephone number and the subscriber's incoming telephone number.

In step S820, the user's outgoing phone number is stored in the database as an additional phone number associated with the subscriber's incoming phone number. The incoming and outgoing phone numbers stored in the database can be used when requesting a call from the subscriber to the user in the next step.

That is, in step S830, the subscriber transmits a call request for the user, and the call request includes the user's incoming telephone number. In step S840, the subscriber additional phone number associated with the called phone number received in step S830 is searched for by referring to the database. If the subscriber of the additional number service to the other party (user) is always recognized as the same additional phone number, the incoming phone number and the additional phone number may be 1: 1 mapped.

Finally, in step S850, a call setup request for making the retrieved additional telephone number as the outgoing telephone number is transmitted to the mobile communication switch. By the caller ID display function, the caller ID is displayed on the user's mobile communication terminal.

As described above, according to the embodiment of FIG. 8, the call record (calling number and the called number) when the other party calls the subscriber is stored to the additional number service subscriber, and when the subscriber calls the other party, Even if a phone number is not input separately, an additional phone number is automatically transferred to an outgoing phone number by referring to the call log and displayed on the other party's mobile terminal. Therefore, in the present embodiment, it is possible to obtain an effect that the subscriber can more easily display his / her calling number.

On the other hand, in the embodiment according to FIG. 8, when the call setup request is made, it is determined whether the called or outgoing telephone number is a telephone number associated with the additional number service subscriber, and the following steps are performed only when it is confirmed that the caller is the subscriber. It may further comprise a step to make.

9 is a block diagram illustrating a configuration of an additional number service providing system for providing an additional number service of FIG. 8 according to a preferred embodiment of the present invention.

As shown in FIG. 9, the additional number service providing system 900 according to the present invention includes a call request receiver 910, a database 920, a phone number searcher 930, and a call call setup request transmitter 940. It includes.

The call request receiving unit 910 receives a call setup request for an additional number service subscriber from a user (the other party). The call setup request includes the user's outgoing telephone number and the subscriber's incoming telephone number.

Database 920 stores the outgoing phone number as an additional phone number associated with the called phone number. As an example of the database 920, it may have a configuration illustrated in FIG. 5.

The call request receiving unit 910 receives a call setup request for the user from the subscriber, and the call setup request of the subscriber includes the user's incoming call number.

The telephone number search unit 930 searches the database 920 to search for an additional telephone number associated with an incoming telephone number of a call setup request for a user.

The call setup request unit 940 transmits a call setup request to the mobile communication switch using the searched additional telephone number as an outgoing telephone number.

The additional number service providing system shown in FIG. 9 may operate in conjunction with an exchange and an HLR, which are components of a mobile communication network, or may be included as part of these components.

As illustrated in FIGS. 8 and 9, the call record for the first call by the other party is stored in the subscriber of the additional number service, and when the subscriber calls the other call, the additional call number is referred to by referring to the call record. The technical idea of automatically transmitting to an outgoing telephone number can be applied to a mobile communication terminal.

That is, as another embodiment of the present invention, the mobile communication terminal includes a call request receiver, a phone number storage, a phone number searcher, and a call request transmitter. The call request receiving unit receives a first call call setup request for the additional number service subscriber from the user (the first call call setup request includes an outgoing telephone number and a first incoming phone number), and the user from the subscriber. Receives a second call setup request for the second call setup request (including the second incoming call number). In addition, the telephone number storage unit stores the outgoing telephone number as an additional telephone number associated with the first incoming telephone number. In addition, the telephone number search unit searches for an additional telephone number associated with the second incoming telephone number by referring to the telephone number storage unit. The call request transmitter then transmits a second call call setup request to the mobile communication switch using the searched additional phone number as an outgoing telephone number.

According to the above embodiment, when the subscriber of the additional number service attempts to make a phone call, the mobile communication terminal automatically dials the outgoing phone number according to the other party, without having to designate his / her own outgoing phone number (additional phone number). It can be delivered.

10 and 11 illustrate a network configuration of the embodiment of FIG. 8. FIG. 10 illustrates a case where a call request is first transmitted from a user to an additional number service subscriber, and FIG. 11 illustrates a case where a call request is transmitted from the subscriber to the user.

As shown in FIG. 10, when the user wants to make a voice call to the additional number service subscriber (S1010), the additional number service is requested and received by the caller's service profile between the mobile switching center (MSC) and the HLR. Confirm that the subscriber (S1020 and S1030). Next, the outgoing telephone number and the incoming telephone number are transmitted and stored with respect to the additional number service providing system (server) (S1140, S1150, S1160).

In addition, as shown in Figure 11, if the additional number service subscriber wants to make a voice call to a specific user (S1110), first confirms that the additional number service subscriber by requesting and receiving the service profile of the caller between the MSC and the HLR ( S1120 and S1130). Next, by requesting and receiving an outgoing telephone number and an incoming telephone number for the additional number service providing system (server) (S1140, S1150, S1160), the outgoing telephone number is transmitted to the receiving terminal of the user (S1170 and S1180). ).

Embodiments of the invention include a computer readable medium containing program instructions for performing various computer-implemented operations. The computer readable medium may include program instructions, data files, data structures, etc. alone or in combination. The medium or program instructions may be those specially designed and constructed for the purposes of the present invention, or they may be of the kind well-known and available to those having skill in the computer software arts. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks, and magnetic tape, optical media such as CD-ROMs, DVDs, and magnetic disks, such as floppy disks. Magneto-optical media, and hardware devices specifically configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like. The medium may be a transmission medium such as an optical or metal wire, a waveguide, or the like including a carrier wave for transmitting a signal specifying a program command, a data structure, or the like. Examples of program instructions include not only machine code generated by a compiler, but also high-level language code that can be executed by a computer using an interpreter or the like.

12 is an internal block diagram of a general-purpose computer system that can be employed to construct an additional number service providing system according to the present invention.

Computer system 1200 includes one or more processors 1210 coupled with a main memory including random access memory (RAM) 1220 and read only memory (ROM) 1230. The processor 1210 is also called a central processing unit (CPU). As is well known in the art, the ROM 1230 serves to transfer data and instructions to the CPU unidirectionally, and the RAM 1220 typically transfers data and instructions bidirectionally. Used to. RAM 1220 and ROM 1230 may include any suitable form of computer readable media. Mass storage 1240 is bi-directionally coupled to processor 1210 to provide additional data storage capabilities, and may be any of the computer readable recording media described above. The mass storage device 1140 is used to store programs, data, and the like, and is a secondary memory device such as a hard disk which is generally slower than the main memory device. Certain mass storage devices such as CD ROM 1260 may also be used. The processor 1210 may include one or more input / output interfaces, such as a video monitor, trackball, mouse, keyboard, microphone, touchscreen display, card reader, magnetic or paper tape reader, voice or handwriting reader, joystick, or other known computer input / output device. 1250 is connected. Finally, the processor 1210 may be connected to a wired or wireless communication network through the network interface 1270. Through this network connection, the procedure of the method described above can be performed. The apparatus and tools described above are well known to those skilled in the computer hardware and software arts.

The hardware device described above may be configured to operate as one or more software modules to perform the operations of the present invention.

As described above, the present invention has been described by way of limited embodiments and drawings, but the present invention is not limited to the above-described embodiments, which can be variously modified and modified by those skilled in the art to which the present invention pertains. Modifications are possible. Accordingly, the spirit of the present invention should be understood only by the claims set forth below, and all equivalent or equivalent modifications thereof will belong to the scope of the present invention.

According to the present invention, when a subscriber of additional number service using a plurality of telephone numbers makes a call request, a method and apparatus may be provided so that a desired outgoing telephone number among a plurality of outgoing telephone numbers can be displayed on the other party's mobile communication terminal. Can be.

According to the present invention, it is possible to avoid the need for the subscriber to reselect the outgoing telephone number when re-calling to a specific party.

1 is a diagram illustrating each step performed in a mobile communication terminal for providing an additional number service according to the present invention.

2A to 2C are diagrams showing examples of a phone number list screen and a selection input screen provided to subscribers.

3A to 3C illustrate an example of another method for selecting an outgoing telephone number from an additional number service subscriber.

4 is a diagram illustrating an internal configuration of a mobile communication terminal for providing an additional number service.

5 is a diagram showing an example of the internal configuration of a database relating to a telephone number storage unit according to the present invention;

6A illustrates a protocol hierarchy and data processing in a mobile communication terminal.

6B illustrates an example of a header structure for transmitting an outgoing telephone number.

FIG. 7 illustrates the processing of an outgoing telephone number in an exchange / VLR to provide an additional number service.

8 is a flowchart illustrating a method for providing an additional number service in a mobile communication network according to the present invention.

FIG. 9 is a block diagram illustrating a configuration of an additional number providing system for providing an additional number service of FIG. 8.

10 and 11 are diagrams illustrating a network configuration according to the embodiment of FIG. 8.

12 is an internal block diagram of a general purpose computer system that may be employed to construct an additional number service providing system in accordance with the present invention.

<Explanation of symbols for the main parts of the drawings>

400: additional number service providing system

410: call request input unit

420: phone number storage

430: phone number display unit

440: call request transmission unit

Claims (9)

Receiving a first incoming call number and a first call request from an additional number service subscriber; Providing a subscriber with a list of additional telephone numbers, the additional telephone number list comprising a plurality of additional telephone numbers associated with the subscriber's additional number service; Receiving one additional telephone number from the telephone number list from the subscriber; And Transmitting a first call setup request to the mobile communication switch using the selected additional telephone number as an outgoing telephone number, wherein the outgoing telephone number is displayed on a mobile communication terminal of the user associated with the first incoming phone number; Additional number service providing method in a mobile communication network comprising a. The method of claim 1, Storing the outgoing telephone number in a database as an additional telephone number associated with the first incoming telephone number; Receiving a second incoming phone number and a second call request from the subscriber; Retrieving an additional telephone number associated with the second incoming telephone number by referring to the database; And Transmitting a second call setup request using the retrieved additional telephone number as an outgoing telephone number to a mobile communication switch; Additional number service providing method in a mobile communication network comprising a. The method of claim 1, And storing the location information of the subscriber in the same HLR for all of the plurality of additional telephone numbers. A call request input unit for receiving a first incoming call number and a first call request from an additional number service subscriber; A telephone number storage unit for storing an additional telephone number list including a plurality of additional telephone numbers associated with the subscriber's additional number service; A telephone number display unit displaying the stored telephone number list in response to the first call request; And A call request transmitter for transmitting a call setup request to the mobile communication switch, The call request input unit receives one additional phone number from the list of additional phone numbers from the subscriber, and the call request transmitter transmits a first call call setup request using the selected phone number as an outgoing phone number. Mobile communication terminal for providing an additional number service. The method of claim 4, wherein The telephone number storage unit stores the outgoing telephone number as an additional telephone number associated with the first incoming telephone number, The call request input unit receives a second incoming call number and a second call request from the subscriber, The call request transmission unit searches for an additional phone number associated with the second incoming phone number by referring to the phone number storage unit, and transmits a second call call setup request to the mobile communication switch using the searched additional phone number as an outgoing phone number. To do Mobile communication terminal for providing an additional number service, characterized in that. Receiving a first call setup request for an additional number service subscriber from a user, the first call setup request comprising an outgoing telephone number and a first incoming telephone number; Storing the outgoing telephone number in a database as an additional telephone number associated with a first incoming telephone number; Receiving a second call call establishment request for the user from the subscriber, the second call call establishment request including a second called telephone number; Retrieving the additional telephone number of the subscriber associated with the second incoming telephone number by referring to the database; And Transmitting, to a mobile communication switch, a second call call setup request using the retrieved additional phone number as an outgoing phone number, wherein the outgoing phone number is displayed on a user's mobile communication terminal associated with the second incoming phone number; Additional number service providing method in a mobile communication network comprising a. Receiving a first call call establishment request from the user for the additional number service subscriber, the first call call establishment request including an outgoing telephone number and a first incoming phone number; and receiving a second call from the subscriber to the user A call request receiving unit for receiving a call establishment request, wherein the second call establishment request includes a second called telephone number; A database for storing the outgoing phone number as an additional phone number associated with a first incoming phone number; A telephone number search unit for searching for an additional telephone number associated with the second incoming telephone number by referring to the database; And Call call setup request transmission unit for transmitting a second call call setup request to the mobile communication switch using the retrieved additional phone number as the outgoing phone number Additional number service providing system in a mobile communication network comprising a. Receiving a first call call establishment request from the user for the additional number service subscriber, the first call call establishment request including an outgoing telephone number and a first incoming phone number; and receiving a second call from the subscriber to the user A call request receiving unit for receiving a call establishment request, wherein the second call establishment request includes a second called telephone number; A telephone number storage unit for storing the outgoing telephone number as an additional telephone number associated with a first incoming telephone number; A telephone number search unit for searching for an additional telephone number associated with the second incoming telephone number by referring to the telephone number storage unit; And Call request transmission unit for transmitting a second call call setup request to the mobile communication switch using the retrieved additional phone number as the outgoing phone number Mobile communication terminal for providing an additional number service comprising a. A computer-readable recording medium having recorded thereon a program for implementing a computer program according to any one of claims 1 to 3, 5 and 6.