KR20090061283A

KR20090061283A - System and method for providing instant messenger service for muti-mumber service subscriber and wireless communication terminal therefor

Info

Publication number: KR20090061283A
Application number: KR1020070128244A
Authority: KR
Inventors: 김학준; 차경찬
Original assignee: 주식회사 케이티프리텔
Priority date: 2007-12-11
Filing date: 2007-12-11
Publication date: 2009-06-16
Also published as: KR100910301B1

Abstract

A system and a method for providing an instant messenger service to a multi-number service subscriber and a wireless communication terminal therefor are provided to use an additional phone number except a basic phone number assigned to the multi-number service subscriber initially, thereby providing an IMS(Instant Messaging Service). A login processor(501) receives a messenger login request including a multi-number service ID code from a terminal of a multi-number service subscriber. A buddy list manager(503) extracts a buddy list about an additional phone number of the multi-number service subscriber according to the multi-number service ID code. The buddy list manager adds added phone number ID information to the buddy list and transmits the list to the terminal of the multi-number service subscriber.

Description

METHOD AND METHOD FOR PROVIDING INSTANT MESSENGER SERVICE FOR MUTI-MUMBER SERVICE SUBSCRIBER AND WIRELESS COMMUNICATION TERMINAL THEREFOR}

The present invention relates to an instant messenger service in a mobile communication network, and more particularly, to a method and system for providing an instant messenger service to a multi-number subscriber and a wireless communication terminal for the same.

With the development of mobile communication technology and the increase in the number of wireless subscribers, mobile communication services have recently been developed and provided in addition to simple voice calls. As one of these additional services, a 'multi-number' service that can be used for different purposes by receiving two or more telephone numbers in one mobile communication terminal is widely used. An example of a multi-number service provided by a domestic mobile carrier is KTF's Two Number service.

Subscribers who subscribe to this multi-number service can display the phone number (hereinafter referred to as the basic phone number) assigned at the time of the first mobile communication service subscription as the calling party information on the called party's terminal, and additionally assigned additional phone number of the called party Caller information may be displayed on the terminal. In addition, the multi-number service subscriber can selectively receive the incoming call flowing into his terminal. For example, when the incoming call flowing into the terminal is received at its basic telephone number, the terminal of the multi-number service subscriber displays general caller information. On the other hand, if the incoming call to the terminal is an additional phone number, the subscriber's terminal is displayed on the caller's information together with an icon indicating that the incoming call is coming to the additional phone number (or caller information and additional call on the terminal) Number together). The subscriber of the multi-number service receives the call selectively based on the caller information displayed on his terminal.

Meanwhile, a "phone messenger" service is disclosed in which a subscriber can chat with other subscribers based on the telephone number of the wireless communication terminal. When the subscriber enters a phone number of another subscriber and registers as a friend, the phone messenger service transmits a message requesting registration of a friend to another subscriber corresponding to the phone number, and if the other subscriber permits, the status of another subscriber Send the information and the nickname to the subscriber registered friend. Through such a phone messenger, the subscriber can send a chat message to the corresponding contact if he knows only the mobile communication phone number without knowing the English ID of the counterpart.

However, the phone messenger service does not support additional phone numbers of multi-number subscribers. That is, the current mobile communication network and the wireless communication terminal only supports the phone messenger driven by the basic telephone number initially assigned, and does not support the phone messenger based on the additional phone number. As a result, even though the subscriber who has subscribed to the multi-number service receives an additional telephone number, there is a problem in that the subscriber does not receive a phone messenger service based on the additional telephone number.

The present invention has been proposed to solve the above problems, and an object thereof is to provide a method and system for providing an additional phone number based messenger service to a multi-number service subscriber and a wireless communication terminal for the same.

Other objects and advantages of the present invention can be understood by the following description, and will be more clearly understood by the embodiments of the present invention. Also, it will be readily appreciated that the objects and advantages of the present invention may be realized by the means and combinations thereof indicated in the claims.

According to a first aspect of the present invention for achieving the above object, a method for providing an instant messenger service based on a multi-number in a mobile communication system includes: (a) a messenger including a multi-number service identification code from a terminal of a multi-number subscriber; Receiving a login request; (b) querying additional telephone numbers of the multi-number subscribers based on the multi-number service identification codes; (c) extracting a buddy list for additional telephone numbers of the multi-number subscribers; And (d) adding additional telephone number identification information to the extracted buddy list and transmitting it to the terminal of the multi-number subscriber.

According to a second aspect of the present invention for achieving the above object, a method for providing a multi-number instant messenger service of the mobile communication system, (a) the additional phone number of the multi-number subscriber is set as the telephone number of the conversation counterpart; Receiving a chat message; (b) changing an additional telephone number set as a telephone number of a conversation counterpart of the received chat message to a basic telephone number of the multi-number subscriber; And (c) adding additional phone number identification information to the chat message and transmitting the additional phone number identification information to the terminal of the multi-number subscriber.

According to a third aspect of the present invention, an instant messenger device for providing a multi-number instant messenger service in a mobile communication system includes a messenger login including a multi-number service identification code from a terminal of a multi-number subscriber. A login processing unit which receives a request; And a buddy list manager for extracting a buddy list for the additional phone number of the multi-number subscriber according to the multi-number service identification code and adding additional phone number identification information to the terminal of the multi-number subscriber. do.

As described above, the present invention has an advantage of providing an instant messenger service based on an additional telephone number in addition to the basic telephone number initially given to a multi-number service subscriber.

The above objects, features and advantages will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, whereby those skilled in the art may easily implement the technical idea of the present invention. There will be. In addition, in describing the present invention, when it is determined that the detailed description of the known technology related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a diagram illustrating a configuration of a system for providing an instant messenger service to a multi-number service subscriber according to an embodiment of the present invention.

As shown in FIG. 1, a system for providing an instant messenger service to a subscriber of a multi-number service according to an embodiment of the present invention includes a wireless communication terminal 110 and 120, a messenger server 130, and a subscriber database (hereinafter referred to as a subscriber). DB ", 140).

Each of these components is connected via a mobile communication network (150). Herein, the mobile communication network 150 provides an IP-based multimedia service. The mobile communication network 150 includes a base station NodeB and a base station controller RNC responsible for accessing the wireless communication terminals 110 and 120 through a wireless section. It includes SGSN, GGSN, and the like, which are responsible for transferring user packet data between an access network and an external network or an IMS domain and provide mobility management and PDP context activation services of the wireless communication terminals 110 and 120. In addition, the mobile communication network 150 is an IMS domain, which has a call session control function (CSCF) that handles registration and multimedia call processing using a SIP (Session Initiation Protocol) protocol, and an IP address of a home location register (HLR) function of an existing network. Home Subscriber Server (HSS), which integrates functions for mobility management and authentication of multimedia users. In particular, the HSS stores subscriber-specific phone numbers, location information and IP information.

Meanwhile, when the CSCF of the mobile communication network 150 transmits and receives a chat message based on a telephone number, the CSCF queries the subscriber's location information corresponding to the called number to the HSS, receives the received information, and transmits the chat message to the subscriber. More specifically, the CSCF queries and receives the domain to which the called party belongs and the called party IP information based on the called number to the HSS, and transmits a chat message to the corresponding domain. Chat message transmission and reception between the wireless communication terminal (110, 120) is preferably made based on the Session Initiation Protocol (SIP).

The wireless communication terminals 110 and 120 subscribed to the multi-phone number service may connect a session with the messenger server 130 through a messenger interface driven by an additional phone number or a basic phone number. That is, the subscriber can use the messenger service (aka "phone messenger service") based on the basic telephone number or the additional telephone number. In addition, the wireless communication terminals 110 and 120 may switch to a messenger interface based on an additional phone number or a basic phone number by inactivating the activated messenger and activating the inactivated messenger using a switching command. Such wireless communication terminals 110 and 120 include PDAs, cellular phones, PCS phones, GSM phones, W-CDMA phones, DMB phones, Wibro phones, Wifi phones, 3G video phones, and the like.

The messenger server 130 provides a phone number based messenger service to a multi-number service subscriber. When the messenger server 130 receives a login request message including a multi-number service number (for example, * 77) from the wireless communication terminals 110 and 120, the messenger server 130 determines whether the wireless communication terminals 110 and 120 subscribe to the multi-number service. Check, change the state of additional phone numbers of the wireless communication terminals 110 and 120 subscribed to the multi-number service online, extract the buddy list of the additional phone numbers from the subscriber DB 140, and then wireless communication terminals 110 and 120; To send. At this time, the messenger server 130 transmits the additional number identifier indicating the buddy list of the additional telephone number to the buddy list to the wireless communication terminals 110 and 120.

Meanwhile, when the messenger server 130 receives a chat message transmission request from the wireless communication terminals 110 and 120, the messenger server 130 checks whether the chat message includes the multi-number service special number, and if the multi-number service special number is included, sends the call. By setting the number as an additional telephone number, a chat message is transmitted to the communication counterpart's wireless communication terminals 110 and 120. In addition, the messenger server 130 checks whether the called number of the chatting message is an additional phone number or a basic phone number of the wireless communication terminals 110 and 120 in the subscriber DB 140, and if the called number is an additional phone number, Change the additional phone number to the default phone number and send a chat message to the wireless communication terminal (110, 120), but specify an additional number identifier (or additional phone number) indicating that the message is to be sent to the additional phone number. Send in addition to the field.

Subscriber DB 140 stores the presence or absence of multi-number service subscription for each subscriber, and stores the basic phone number and additional phone number of the subscriber subscribed to the multi-number service. In addition, the subscriber DB 140 stores the ID, password, buddy list corresponding to the basic telephone number, and the ID, password, buddy list corresponding to the additional telephone number.

2 is a diagram illustrating a configuration of a wireless communication terminal supporting a multiple messenger interface according to an embodiment of the present invention.

As shown in FIG. 2, the wireless communication terminals 110 and 120 supporting the multiple messenger interface may include a communication unit 210, a control unit 220, a display unit 230, an input unit 240, a memory 250, and an interface unit. 260.

The communication unit 210 connects with a base station of the mobile communication network 150 and transmits / receives wireless data. The communication unit 210 communicates with the base station through a pilot channel, paging channel, traffic channel, and the like.

The controller 220 drives the terminal, controls the overall work processing of the terminal, and processes and connects an incoming / outgoing call with a base station of the mobile communication network 150 through the communication unit 210. In addition, in conjunction with the interface unit 260, various programs in the terminal are executed and data is input / output to the memory 250.

The display unit 230 provides the user with the information processed in the terminal. The display unit 230 is a liquid crystal display for displaying the processing state of the terminal on the screen, a light emitting lamp for transmitting information through light emission of the light emitting device, a vibration device for transmitting information through the vibration of the vibration motor, information through the ring tone or sound It includes a speaker to deliver.

The input unit 240 receives a user's voice through a microphone and receives a signal for operating a terminal from the user through an input means such as a keypad. In particular, the input unit 240 receives a switch signal of the messenger interface from the user.

The memory 250 stores a phone book, a schedule, a ring tone, etc. set by a user in addition to a program required for driving the wireless communication terminals 110 and 120. In particular, the memory 250 includes memory areas 251 and 252 which store messenger information for each phone number.

The interface unit 260 provides the user with an interface that can easily use the basic functions and various additional functions of the terminal. In particular, the interface unit 260 includes a first messenger unit 262 and a second messenger unit 263 capable of independently executing an instant messenger based on an additional phone number and a basic phone number. And a switching unit 261 for switching 263.

The first messenger unit 262 is a messenger interface corresponding to a basic telephone number assigned to a terminal. The first messenger unit 262 sets an independent screen and allocates an independent storage area 251 of the memory 250 to display a buddy list, a chat message or a received file. And so on.

The second messenger unit 263 is a messenger interface corresponding to the additional phone number assigned to the terminal. An independent screen is set up like the first messenger unit 262, and an independent storage area 252 is allocated to the additional messenger interface. Store relevant messenger information.

When a messenger service such as a chat message or a file transmission / reception is executed through the first messenger unit 262, the first messenger unit 262 sets the default phone number as a calling number to send the chat message to the messenger server 130. send. On the other hand, when the messenger service is executed through the second messenger unit 263, the second messenger unit 263 transmits a chat message to the messenger server 130 by setting the basic phone number as the calling number, but additional phone number. A multi-number service number (for example, * 77) indicating that the message is transmitted to the caller is added to the called party's called number.

On the other hand, when the communication unit 210 receives a chat message from the messenger server 130, the control unit 220 checks whether an additional number identifier (or additional phone number) is included in a specific field of the message, and the identifier If no message is stored in the first area 251, the first messenger unit 262 configures a screen based on the message. On the other hand, if there is an additional number identifier (or additional telephone number) in a specific field of the received message, the control unit 220 stores the message in the second area 252, and accordingly the second messenger unit 263 Configure the screen based on the message.

When the messenger interface switch request is received from the input unit 240, the switch unit 261 deactivates the activated messenger interface on the display unit 230, and activates the switch request messenger interface on the display unit 230.

Hereinafter, 110 in FIG. 1 is assumed to be a wireless communication terminal A as a wireless communication terminal subscribed to a multi-number service, and 120 in FIG. 1 is assumed to be a wireless communication terminal B as a wireless communication terminal subscribed to a general service.

3 is a flowchart illustrating a method of providing an instant messenger service to a multi-number service subscriber according to an embodiment of the present invention.

Referring to FIG. 3, the wireless communication terminal A 110 may drive a messenger through the first messenger 262 based on the basic phone number to connect a session with the messenger server 130 (S301). That is, the subscriber of the wireless communication terminal A (110) can send and receive chat messages with other subscribers via the phone messenger driven based on the basic phone number.

When the wireless communication terminal A 110 receives the messenger interface switching signal from the subscriber, the switching unit 261 of the wireless communication terminal A 110 deactivates the messenger interface of the basic telephone number on the display unit 230 and the additional telephone number is changed. The messenger interface is activated on the display unit 230 (S303). At this time, the first messenger 262 based on the deactivated basic phone number maintains a session with the messenger server 130.

When the subscriber logs in by inputting an ID and password on the messenger interface of the additional phone number (i.e., the second messenger unit 263), the wireless communication terminal A 110 requests a login to the messenger server 130 via the CSCF. The message is transmitted (S305, S307). At this time, the wireless communication terminal A (110) is added to the messenger server 130 by adding a multi-number service number (for example, * 77) to the login request message to indicate that the messenger login request on the messenger interface based on the additional phone number. do.

The messenger server 130 checks whether the ID and password received from the wireless communication terminal A 110 match, and also includes a special number in the login request message, so that the subscriber of the wireless communication terminal A 110 can access the multi-number service. Check whether the subscriber is a subscribed subscriber (S309). If the ID and password do not match or the subscriber is not a multi-number service subscriber, the messenger server 130 transmits information indicating that the messenger service is not available to the wireless communication terminal A (110) (S311 and S313).

On the other hand, if the subscriber of the wireless communication terminal A (110) in the step S309 and the ID and password are subscribed to the multi-number service, the messenger server 130 adds the additional telephone number of the wireless communication terminal A (110) subscriber DB ( And extract the status information of the additional telephone number on-line (S315). Subsequently, the messenger server 130 extracts a buddy list corresponding to the additional telephone number of the wireless communication terminal A 110 from the subscriber DB 140 and transmits the buddy list to the wireless communication terminal A 110 (S317, S319, and S321). . At this time, the messenger server 130 adds an additional number identifier to the buddy list to indicate that the buddy list is transmitted to the additional telephone number of the wireless communication terminal A 110.

Upon receiving the buddy list of the additional phone number, the wireless communication terminal A 110 displays the buddy list on the additional phone number interface (that is, the second messenger unit 263) to indicate that the subscriber login was successful. Accordingly, the wireless communication terminal A (110) may transmit a chat message to the subscriber registered in the buddy list (S323, S325). At this time, the wireless communication terminal A (110) adds a multi-number service special number to the called number of the chat message to indicate that the chat message transmitted to the additional telephone number. Then, the messenger server 130 confirms that the multi-number service number is added to the received chat message, and accordingly extracts the additional phone number of the wireless communication terminal A 110 from the subscriber DB 140. Subsequently, the messenger server 130 sets the calling number of the chat message received from the wireless communication terminal A 110 as an additional phone number and transmits it to the wireless communication terminal B 120 (S327, S329, and S331).

Meanwhile, when the CSCF receives the login request message or the chat message from the wireless communication terminal A 110 in steps S305 and S323, the CSCF checks the routing information of the messenger server 130 providing the service and the messenger server 130. Send a login request message or chat message received by. In addition, when the CSCF receives a buddy list or a chat message transmission request from the messenger server 130 to the wireless communication terminals 110 and 120 in steps S311, S319, and S329, the CSCF receives the called number (that is, the basic telephone number) to the HSS. After querying the domain information and the IP information of the wireless communication terminal (110, 120) corresponding to the through, and transmits a buddy list or chat message to the wireless communication terminal (110, 120) as the destination.

4 is a flowchart illustrating a method of providing an instant messenger service to a multi-number service subscriber according to another embodiment of the present invention.

Referring to FIG. 4, the wireless communication terminal B 120 may transmit a chat message to the additional telephone number of the wireless communication terminal A 110 (S401 and S403). At this time, the CSCF receives the chat message of the wireless communication terminal B (120), checks the routing information of the messenger server (130), and transmits the chat message to the messenger server (130).

Then, the messenger server 130 checks whether the called number is the basic telephone number or additional telephone number of the wireless communication terminal A 110 through the subscriber DB 140, and if the additional telephone number corresponds to the additional telephone number, The basic telephone number is extracted from the subscriber DB 140 (S405). Subsequently, the messenger server 130 transmits the chat message by changing the called number from the additional phone number to the basic phone number, and adds an additional number identifier (or additional phone number) to a specific field of the chat message. In step S407, S409. At this time, the CSCF queries the domain information and the IP information of the wireless communication terminal A 110 corresponding to the called number (that is, the basic telephone number) of the chat message to the HSS to determine the location information, and then the wireless communication terminal A 110. Send a chat message to

The wireless communication terminal A (110) confirms that an additional number identifier (or additional telephone number) is added to the received chat message, and accordingly, is added to the additional telephone number messenger interface (i.e., the second messenger unit 263). The chat message is displayed (S411).

5 is a diagram illustrating a configuration of a messenger server that provides an instant messenger service to a multi-number service subscriber according to an embodiment of the present invention.

As shown in FIG. 5, the messenger server 130 that provides an instant messenger service to a multi-number service subscriber according to an embodiment of the present invention includes a login processor 501, a buddy list manager 503, and a chat service unit 505. ).

The login processor 501 receives a login request from the wireless communication terminals 110 and 120 and checks whether the ID and password match through the subscriber DB 140. In addition, the login processing unit 501 checks whether the multi-number service special number is included in the login request message and, if the special number is included, checks whether the corresponding subscriber is the multi-number service subscriber through the subscriber DB 140. If the authentication (that is, whether the ID and password match and whether there is a multi-number service subscriber) is successful, the login processing unit 501 notifies the buddy list manager 503 of the authentication success. On the other hand, if the subscriber's authentication fails, the login processor 501 transmits an ID and password mismatch message or a multi-number service unavailable message to the corresponding wireless communication terminals 110 and 120.

The buddy list manager 503 extracts the buddy list corresponding to the basic phone number or the additional phone number of the successful subscriber from the subscriber DB 140 and transmits the buddy list to the corresponding wireless communication terminals 110 and 120. On the other hand, when the buddy list is a buddy list corresponding to the additional telephone number, the buddy list manager 503 adds an additional number identifier (or additional telephone number) to a specific field of the buddy list to the wireless communication terminals 110 and 120. send.

The chat service unit 505 changes the state information corresponding to the basic telephone number or the additional telephone number of the subscriber which has been successfully authenticated online. The online status information is transmitted to the wireless communication terminals 110 and 120 of the other subscribers who registered the basic phone number or the additional phone number as a buddy, so that the status information of the corresponding phone number is online from offline. Change it to (on-line).

In addition, the chat service unit 505 receives a chat message from the wireless communication terminals 110 and 120, checks whether the multi-number service special number is included in the chat message, and if the special number is included, the wireless communication terminal 110. Extract the additional phone number from the subscriber DB 140 and set the calling number as the additional phone number to transmit to the called party's wireless communication terminals 110 and 120. In addition, the chat service unit 505 checks through the subscriber DB 140 whether the incoming number of the received chat message is a basic phone number or an additional phone number, and if the additional phone number is the additional phone number, the incoming number is converted from the additional phone number. The phone number is changed to a number, and an additional telephone number identifier (or additional telephone number) is added to a specific field of the chat message and transmitted to the called party's wireless communication terminals 110 and 120.

6 is a flowchart illustrating a method of providing an instant messenger service to a subscriber of a multi-number service in a messenger server according to an embodiment of the present invention.

As illustrated in FIG. 6, the messenger server 130 receives a chat message transmission request from another logged-in subscriber to another subscriber (S601). Subsequently, the messenger server 130 checks whether a multi-number service special number is included in the called number of the chat message (S603). When the special number is included, the messenger server 130 extracts the additional telephone number of the subscriber who has sent the message from the subscriber DB 140 and sets the calling number as the additional telephone number (S605 and S607).

Subsequently, the messenger server 130 checks through the subscriber DB 140 whether the called number of the received chat message is an additional phone number of the wireless communication terminals 110 and 120 (S609). When the called number is the additional phone number, the messenger server 130 extracts the basic phone number corresponding to the additional phone number from the subscriber DB 140 and changes the called number from the additional phone number to the basic phone number, but the chat An additional number identifier (or additional telephone number) is added to a specific field of the message and transmitted to the corresponding wireless communication terminals 110 and 120 (S611 and S613).

Through the above-described method, a subscriber using a multi-phone number service can use an instant messenger on an additional phone number interface. In addition, the subscriber may switch the basic phone number and the additional phone number messenger interface by using a switching command implemented in the terminal.

Meanwhile, in the above-described embodiment, only an example of a telephone number-based messenger service has been described for transmitting and receiving a chat message between subscribers, but the present invention is not limited thereto. Make sure that it can be applied throughout the service.

The method of the present invention as described above may be implemented as a program and stored in a recording medium (CD-ROM, RAM, ROM, floppy disk, hard disk, magneto-optical disk, etc.) in a computer-readable form. Since this process can be easily implemented by those skilled in the art will not be described in more detail.

The present invention described above is capable of various substitutions, modifications, and changes without departing from the technical spirit of the present invention for those skilled in the art to which the present invention pertains. It is not limited by the drawings.

110, 120: wireless communication terminal 130: messenger server

140: subscriber DB

Claims

A method for providing an instant messenger service based on multiple numbers in a mobile communication system,

(a) receiving a messenger login request including a multi-number service identification code from a terminal of a multi-number subscriber;

(b) querying additional telephone numbers of the multi-number subscribers based on the multi-number service identification codes;

(c) extracting a buddy list for additional telephone numbers of the multi-number subscribers; And

and (d) adding additional phone number identification information to the extracted buddy list and transmitting the additional phone number identification information to the terminal of the multi-number subscriber.

The method of claim 1,

(e) receiving a chat message including a multi-number service identification code from a terminal of the multi-number subscriber;

(f) setting an additional phone number of the multi-number subscriber as a caller number of a received chat message; And

(g) transmitting a chat message in which an additional phone number is set to a terminal of a conversation counterpart; and providing a multi-number instant messenger service.

The method according to claim 1 or 2,

Before step (a) or after step (d),

Receiving a messenger login request from the terminal of the multi-number subscriber;

Extracting a buddy list for the primary telephone number of the multi-number subscriber; And

And transmitting the extracted buddy list to the terminal of the multi-number subscriber.

The method according to claim 1 or 2,

And changing the additional telephone number status of the multi-number subscriber to online.

A method for providing a multi-number instant messenger service of a mobile communication system,

(a) receiving a chat message in which the additional telephone number of the multi-number subscriber is set as the telephone number of the conversation counterpart;

(b) changing an additional telephone number set as a telephone number of a conversation counterpart of the received chat message to a basic telephone number of the multi-number subscriber; And

and (c) adding additional phone number identification information to the chat message and transmitting the additional phone number identification information to a terminal of the multi-number subscriber.

The method of claim 5, wherein

Receiving a chat message in which the basic telephone number of the multi-number subscriber is set as a telephone number of a conversation counterpart; And

And transmitting the chat message to a terminal of the multi-number subscriber.

The method according to claim 5 or 6,

The terminal of the multi-number subscriber,

A method for providing an instant messenger service based on a multi-number, characterized in that an independent messenger interface is provided for each basic telephone number and additional telephone numbers granted from a mobile communication network.

The method of claim 7, wherein

The terminal of the multi-number subscriber,

And a chat message to which the additional phone number identification information is added, in a messenger interface corresponding to the additional phone number.

An instant messenger device for providing a multi-numbered instant messenger service in a mobile communication system,

A login processing unit for receiving a messenger login request including a multi-number service identification code from a terminal of a multi-number subscriber; And

And a buddy list manager for extracting a buddy list for the additional phone number of the multi-number subscriber according to the multi-number service identification code and adding additional phone number identification information to a terminal of the multi-number subscriber.

The method of claim 9,

When receiving a chat message including a multi-number service identification code from the terminal of the multi-number subscriber, the chat service unit for setting the additional phone number of the multi-number subscriber as the caller number of the received chat message and transmits it to the terminal of the conversation counterpart. Instant messenger device further comprising.

The method of claim 10,

The chat service unit,

Receiving the chat message in which the additional phone number of the multi-number subscriber is set as the phone number of the conversation counterpart, and converts the additional phone number to the basic phone number of the multi-number subscriber and transmits the same to the terminal of the multi-number subscriber. IM device.