KR100816640B1 - Mobile telecommunication system providing for phone book service and a method thereof - Google Patents

Abstract

The present invention relates to a mobile communication system for providing a phone book service (Phone Book Service) using a phone book server (Phone Book Server), and a method thereof, and to a personal phone book embedded in a mobile communication terminal due to the inability to use a mobile communication terminal. If it is not available, in order to receive subscriber-specific phonebook service through another mobile communication terminal, a communication path is formed with the mobile communication terminal using the Unstructured Supplementary Service Data Protocol (USSD Protocol). request), store and manage phone book data, generate phonebook data in USSD format, and move phonebook data in USSD format in conjunction with a home location register (HLR) in a mobile communication network. A phone book server for transmitting to a communication terminal; Includes mobile networks. The mobile communication terminal may include a memory equipped with a USSD application that transmits USSD commands to the phonebook server through a communication path and receives phonebook data in USSD format from the phonebook server. According to the present invention, there is an effect that a personal phone book service can be provided at any time from the phone book server.

Phone Book Service, Phone Book Server, Intelligent Network, USSD

Description

MOBILE TELECOMMUNICATION SYSTEM PROVIDING FOR PHONE BOOK SERVICE AND A METHOD THEREOF}

1 is a block diagram of a mobile communication system for providing a phone book service according to an embodiment of the present invention.

2 is a block diagram of a mobile communication system for providing a phone book service according to another embodiment of the present invention.

3 is a flowchart illustrating a method for providing a phone book service according to an embodiment of the present invention.

4A to 4F are exemplary views illustrating a user interface screen on a mobile communication terminal according to an embodiment of the present invention.

<Description of Major Symbols in Drawing>

100: mobile communication system 110: phonebook server

120: home location register 130: mobile communication network switch

140: base station controller 150: base station

160: mobile communication terminal 210: intelligent network additional equipment

220: service controller 230: home location register

240: mobile communication network switch 250: base station controller

260: base station 270: mobile communication terminal

The present invention relates to a mobile communication technology, and more particularly, to a mobile communication system and a method for providing a phone book service using a phone book server or an intelligent network.

Mobile communication terminals such as GSM (Global System for Mobile communication) telephones and Wide-Code Division Multiple Access (W-CDMA) telephones have built-in storage devices such as flash memory. Various personal information is stored in the storage device for the convenience of the user. For example, each user's personal phone book, calendar, alarm, e-mail address, as well as information such as desktop, ringtones and fonts for the user interface. A personal information management system (PIMS) that stores and manages the data is stored.

In particular, the phone book stored in the user's mobile terminal can be searched directly on the mobile terminal to attempt a call, and since the phone book is composed of letters or numbers, the amount of information is small, so that many phone numbers can be stored in the storage device. Do. Because of this convenience, users tend not to use or memorize phonebooks separately. Therefore, when the mobile communication terminal is lost or when the use of the mobile communication terminal is impossible as the battery is completely exhausted, even searching for a phone number in the mobile communication terminal becomes impossible, which causes inconvenience or difficulty. Moreover, the damage is even greater when urgently needed.

On the other hand, GSM phones or W-CDMA phones use a smart card with an integrated circuit chip (IC chip), such as a subscriber identity module (SIM) or a universal subscriber identity module (USIM). These smart cards have a built-in CPU and memory, and may store not only basic call processing programs but also personal information management systems and personal financial information. In such a case, a smart card may be mounted on another person's mobile communication terminal to retrieve a phone book stored in a personal information management system. Therefore, it can be seen that a problem such as the impossibility of retrieving a phone number described above occurs when the phone book is stored in a flash memory in the mobile communication terminal itself, not in a smart card.

An object of the present invention is a mobile communication system that allows a subscriber to a phone book service to receive a phone book service for each subscriber using the Unstructured Supplementary Service Data Protocol (USSD Protocol) on another's mobile terminal. And to provide a phone book service providing method.

Another object of the present invention is to enable the phonebook service of the general public as well as phonebook service for each subscriber.

It is still another object of the present invention to provide a phonebook service for each subscriber and a general public telephone number guide service as a USSD message using an intelligent network (IN) instead of a phone book server.

Still another object of the present invention is to provide a mobile communication system and a phone book service providing method capable of call back to a retrieved telephone number.

The mobile communication system according to the present invention comprises (A) means for establishing a communication path with a mobile communication terminal using the USSD protocol to transmit USSD commands, and (B) storing and managing phonebook data and generating phonebook data in USSD format. And (C) a phonebook server including means for transmitting phonebook data in USSD format to a mobile communication terminal in association with a home location register in a mobile communication network. The mobile communication terminal transmits a USSD command to the phonebook server through a communication path, and has a USSD application (USSD Application) for receiving phonebook data in USSD format from the phonebook server. The mobile communication network may include a home location register including a USSD handler for transmitting a USSD request on a communication path and receiving phonebook data in USSD format from a phonebook server; A Mobile Switching Center (MSC) including a USSD handler for transmitting USSD commands on a communication path and receiving phonebook data in USSD format from a home location register; A base station controller (BSC) including a USSD handler for transferring USSD commands on a communication path and receiving phonebook data in USSD format from a mobile communication network switch; And a base transceiver station (BTS) including a USSD handler for transmitting USSD commands on a communication path and receiving phonebook data in USSD format from a base station controller.

The mobile communication system according to another embodiment of the present invention includes an Intelligent Peripheral (IP) for storing and managing phonebook data in an intelligent network, and a Service Control Point (SCP). The service controller includes (A) means for forming a communication path with a mobile communication terminal using the USSD protocol to transmit USSD commands, (B) means for generating phonebook data in USSD format from phonebook data received from an intelligent network attachment; And (C) means for transmitting phonebook data in USSD format to the mobile communication terminal in conjunction with a home location register in the mobile communication network. The mobile communication terminal transmits a USSD command to a service controller through a communication path, and has a USSD application mounted in a memory for receiving phonebook data in USSD format from the service controller. Here, the mobile communication network includes a home location register including a USSD handler for transmitting USSD commands on a communication path and receiving phonebook data in USSD format from a service controller; A mobile communication network switch for transmitting a USSD command on a communication path and including a USSD handler for receiving phonebook data in USSD format from a home location register; A base station controller including a USSD handler for transmitting USSD commands on a communication path and receiving phonebook data in USSD format from a mobile network switch; And a base station including a USSD handler for transmitting USSD commands on a communication path and receiving phonebook data in USSD format from a base station controller. The intelligent network additional equipment is connected to the Internet, and it is desirable to store, retrieve, modify, and delete phonebook data through the Internet.

On the other hand, it is preferable that the mobile communication system providing the phone book service uses the GSM method or the W-CDMA method. The phone book data may include a name and a phone number stored by each subscriber subscribed to the phone book service, or may include a name and a phone number of a phone book of a general public. In addition, the phone book server is connected to the Internet, it is preferable to store, retrieve, modify and delete the phone book data through the Internet. In addition, the phonebook data includes a name, a mobile communication terminal number, a home telephone number, a company telephone number, a fax number, an e-mail address, an address, and a short note.

The method for providing a phone book service according to the present invention includes: a first step of driving a phone book service by transmitting a phone book service driving command from a mobile communication terminal to a phone book server; A second step of authenticating a phonebook service subscriber of the mobile communication terminal by the phonebook server; A third step of searching for phonebook data stored in a phonebook server by inputting a search word on a mobile communication terminal; A fourth step of transmitting the phonebook data retrieved from the phonebook server to the mobile communication terminal; A fifth step of displaying the retrieved phonebook data through a display device of a mobile communication terminal; And a sixth step of terminating the phonebook service by transmitting a phonebook service end command from the mobile communication terminal to the phonebook server, wherein each step includes a USSD command or a USSD format on a communication path using the USSD protocol between the mobile communication terminal and the phonebook server. Send and receive phonebook data.

According to another aspect of the present invention, there is provided a method for providing a phone book service, comprising: a first step of driving a phone book service by transmitting a phone book service driving command from a mobile communication terminal to a service controller in an intelligent network; A second step of authenticating a phonebook service subscriber of the mobile communication terminal by the service controller; Inputting a search word on a mobile communication terminal to search for phonebook data stored in an intelligent network additional device in the intelligent network; A fourth step of transmitting the phonebook data retrieved from the intelligent network additional equipment to the mobile communication terminal; A fifth step of displaying the retrieved phonebook data through a display device of a mobile communication terminal; And a sixth step of terminating the phonebook service by transmitting a phonebook service termination command from the mobile communication terminal to the service controller, wherein each step includes a USSD command or a USSD format on a communication path using the USSD protocol between the mobile communication terminal and the service controller. Send and receive phonebook data.

Here, after the fifth step, it is preferable to repeat the third to fifth step according to the subscriber's choice. In addition, after the first step, it is preferable to further include the step of selecting one of the subscriber-specific phonebook service that provides phonebook data including the name and phone number stored by each subscriber and the general public telephone number guide service . The method may further include a callback step of establishing a voice call between the mobile communication terminal and the mobile communication terminal of the retrieved phonebook data or the public switching telephone network (PSTN) terminal according to the subscriber's selection.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

1 is a block diagram of a mobile communication system for providing a phone book service according to an embodiment of the present invention. As shown in FIG. 1, the mobile communication system 100 includes a phone book server 110, a mobile communication network, and a mobile communication terminal 160. Herein, the mobile communication network includes a home location register 120, a mobile communication network switch 130, a base station controller 140, and a base station 150.

The phonebook server 110 stores and manages phonebook data for each subscriber of the phonebook service subscriber and provides phonebook data in association with the home location register 120 in the mobile communication network 100 according to the subscriber's request. The phone book server 110 is connected to, for example, a wired network with the home location register 120 in the mobile communication network.

Such phonebook data should be stored in the phonebook server 110 by the subscriber in advance. To this end, the phonebook server 110 may be configured to be connected to the wired or wireless Internet, so that the phonebook data may be stored, retrieved, modified, and deleted through various terminals. Of course, the subscriber authentication is required to access the phone book server 110 through the Internet.

On the other hand, the phone book server 110 may provide a phone number guide service of the general public in addition to providing a phone book service for each subscriber as shown above. This replaces the '114' telephone number guidance service provided by the existing landline telephone station, and may include both a landline telephone number connected to a public switching telephone network (PSTN) or a mobile terminal number connected to a wireless mobile communication network. .

Such phonebook data can be configured in various ways as needed. For example, it may include information such as a name, a mobile terminal number, a home phone number, a work phone number, a fax number, an email address, an address, a short memo, and the like.

The phonebook data may be transmitted to the mobile communication terminal 160 in various ways such as a Short Message Service (SMS) or an Auto Responsive System (ARS), but the phonebook data is transmitted using the USSD method. Is the most efficient.

USSD is a protocol provided in a mobile communication system using a GSM method or a W-CDMA method, and is defined in 3GPP TS 22.090, 3GPP TS 23.090, and 3GPP TS 24.090 in the GSM method. In particular, bidirectional message exchange is mentioned in 3GPP TS 23.090. The USSD method of the W-CDMA method is also the same as the GSM method.

Since the USSD protocol uses a signaling channel in the W-CDMA method, USSD messages can be transmitted and received even when voice calls are connected. In addition, unlike the short message service (SMS), which is a store-and-forward method, since the communication path is released, it is maintained until the communication path is set and released. Therefore, it is very advantageous in terms of transmission speed. In the present invention, a communication path is established or released between the phone book server 110 and the mobile communication terminal 160.

As described above, in order to establish and release a communication path using the USSD protocol between the mobile communication terminal 160 and the phone book server 110, a USSD application mounted in the memory of the mobile communication terminal 160 and executed is required. Do. Similarly, the phone book server 110 also has a function of setting and releasing communication paths.

The communication path is established between the phone book server 110 and the mobile communication terminal 160 via a mobile communication network using a GSM method or a W-CDMA method, and the mobile communication network is a home location register 120 and a mobile communication network switch 130. , The base station controller 140, the base station 150, and the like.

The home location register 120 includes a USSD handler for storing and managing subscriber information of the mobile communication terminal 160 and serving as an entity on a communication path using the USSD protocol. In the present invention, the USSD handler of the home location register 120 not only delivers a USSD command on the communication path, but also receives phonebook data in USSD format from the phonebook server 110 to exchange a mobile communication network 130. To send).

Similarly, mobile network switch 130, base station controller 140, and base station 150 also function as entities on a communication path using the USSD protocol, each of which includes an unstructured service data handler.

The mobile network switch 130 performs basic call processing and control in the mobile network, the USSD handler in the mobile network switch 130 transmits USSD commands on the communication path, and receives phonebook data in USSD format from the home location register 120. Receive. The base station controller 140 controls and manages a plurality of base stations, the USSD handler in the base station controller 140 transmits USSD commands on the communication path, and receives phonebook data in USSD format from the mobile communication network switch 130. The base station 150 is wirelessly connected to the mobile communication terminal 160, and functions to transmit USSD commands on a communication path, and also transmits phonebook data in a USSD format to the mobile communication terminal 160. The USSD handler recognizes and delivers the USSD command or the phonebook service data in the USSD format according to the USSD protocol. However, the USSD handler does not analyze the command or the message or perform an operation thereof.

In the present invention, a call back can be made to a phone number in the phonebook data received by the mobile communication terminal 160, and this callback function enables RRC (Radio Resource Control) connection, which is a lower network layer of a communication path using the USSD protocol. This is done by immediately setting up the voice call without release.

2 is a block diagram of a mobile communication system for providing a phone book service according to another embodiment of the present invention.

The mobile communication system 200 of FIG. 2 includes an intelligent network, a mobile communication network, and a mobile communication terminal 270. Here, the intelligent network includes the intelligent network additional equipment 210 and the service controller 220, and the mobile communication network includes a home location register 230, a mobile communication network switch 240, a base station controller 250, and a base station 260. .

The mobile communication system 200 of FIG. 2 adds an intelligent network for providing a phonebook service to an existing mobile communication network. The phonebook server 110 of FIG. 1 includes a service controller 220 and an intelligent network additional device 210 of an intelligent network. Is replaced by. The mobile communication system 200 of FIG. 2 reduces the load of the mobile communication network compared to the mobile communication system 100 of FIG. 1, and facilitates the implementation and modification of the phonebook service using the service controller 220 in the intelligent network. There is an advantage that it can.

The intelligent network additional equipment 210 stores and manages phonebook data in the intelligent network.

Such phonebook data is stored in advance in the intelligent network additional equipment 210 by the subscriber. To this end, the intelligent network additional device 210 may be configured to be connected to the wired or wireless Internet, so that the phonebook data may be stored, retrieved, modified, and deleted through various terminals.

On the other hand, the intelligent network additional equipment 210 may also provide a phone number guide service of the general public in addition to providing a phonebook service for each subscriber like the phonebook server 110.

Phonebook data provided by the mobile communication system 200 of FIG. 2 also includes information such as name, mobile communication terminal number, home phone number, company phone number, fax number, email address, address, and a brief note. can do.

The service controller 220 forms a communication path with the mobile communication terminal 270 by the USSD protocol. The USSD command is transmitted on the communication path, and the phonebook data in the USSD format is generated from the phonebook data received by the intelligent network accessory 210. The phonebook data of the USSD format is transmitted to the mobile communication terminal in association with the home location register 230 in the mobile communication network.

The mobile communication terminal 270 has a USSD application mounted in a memory, and the USSD application transmits a USSD command to the service controller 220 through a communication path, or receives phonebook data in USSD format from the service controller 220.

The home location register 230, the mobile communication network switch 240, the base station controller 250, and the base station 260 in the mobile communication network are the home location register 120 and the mobile communication network switch of the mobile communication system 100 of FIG. 1. 130, the same as the base station controller 140, the base station 150, and a description thereof will be omitted below.

3 is a flowchart illustrating a phonebook service providing method according to an embodiment of the present invention.

The method for providing a phone book service includes: driving a phone book service, performing a phone book service subscriber authentication, retrieving a phone number stored in a phone book server, transmitting a retrieved phone number to a mobile communication terminal, And displaying the phone number and terminating the phonebook service.

In a first step S310, a mobile phone terminal transmits a phonebook service driving command to a phonebook server to drive a phonebook service. The USSD protocol does not require the use of a particular menu in view of a user interface, and it is possible to establish and release a communication path and to transmit data in a USSD format only by a simple simple USSD command. For example, in order to start the phonebook service of the present invention, when a user transmits a predetermined USSD command such as '* 777 #' on another's mobile communication terminal 160, the phonebook server interprets the received command and the phonebook. Recognizes the service and starts the phone book service.

The following is an optional step, in step S315 of selecting a phonebook service. The subscriber selects one of a subscriber's phonebook service that provides phonebook data including a name and a phone number previously stored by each subscriber and a telephone number guide service of the general public. If the subscriber sends the result selected on the mobile communication terminal to the phonebook server by USSD command, the phonebook server recognizes this.

The second step (S320) is an authentication step of the phonebook service subscriber. When the subscriber transmits the phone number and preset password of the subscriber's mobile communication terminal on the mobile communication terminal to the phonebook server, the phonebook server authenticates. In the case of the authentication failure of the phonebook server, the authentication step may be repeatedly performed, and after a certain number of failures, the phonebook server may perform the step of releasing the communication path.

In the third step S330, after the authentication is successful in the second step S320, the subscriber inputs a search word on the mobile communication terminal to retrieve phonebook data stored in the phonebook server. The database of the phone book server is divided into a subscriber-specific database and a general database so that each database is searched according to the result selected in the step S315 of selecting a phone book service. The search is configured to be searchable by name, by phone number, by storage order, by storage date, by category, by speed dial, and the like. After retrieval, it can be re-searchable and can be configured to restart from the early stage of retrieval even in case of retrieval failure.

The fourth step S340 is a step of transmitting the phonebook data retrieved in the third step S330, and the phonebook server transmits the retrieved phonebook data to the mobile communication terminal. Among the phonebook data, only necessary data such as name and phone number can be transmitted, and all phonebook data such as e-mail address or fax number can be transmitted.

In a fifth step S350, the phonebook data received from the phonebook server is displayed on the display device of the mobile communication terminal.

The next step is to optionally configure, call back to the retrieved telephone number (S355). This is a step of setting a voice call by selecting among the phone numbers displayed on the display device of the mobile communication terminal. Such a telephone number includes both a landline telephone number connected to a PSTN or a mobile communication terminal number connected to a mobile communication network.

A sixth step S360 is to terminate the phonebook service. The subscriber releases the communication path by sending a USSD command for terminating the phone book service to the phone book server.

In a method using a mobile communication system that provides a phonebook service using an intelligent network, a similar step is performed. This is roughly performed by transmitting a phonebook service driving command from a mobile communication terminal to a service controller to drive a phonebook service, authenticating a subscriber by the service controller, retrieving phonebook data stored in an intelligent network additional equipment, and service. Transmitting, by the controller, the phonebook data retrieved from the intelligent network additional equipment to the mobile communication terminal, displaying the phonebook data on the display device of the mobile communication terminal, and transmitting a USSD command for terminating the phonebook service from the mobile communication terminal to the service controller. Ending the phone book service.

4A to 4F are exemplary views illustrating a user interface screen on a mobile communication terminal according to an embodiment of the present invention.

There is no special menu related to the user interface, but the mobile communication terminal analyzes the USSD command received from the phone book server or the service controller and the message included therein and displays the same on the display device. 4A illustrates an example of a screen configuration for selecting one of subscriber-specific phonebook services and a general public telephone number guide service after the phonebook service is started. 4B and 4C are exemplary diagrams of a screen configuration for subscriber authentication after a subscriber selects one. First, the subscriber's mobile communication terminal number is entered and transmitted, and the password is entered and transmitted. 4D is an exemplary diagram of a screen configuration for selecting a method for retrieving phonebook data when the subscriber authentication is successful. As shown in FIG. 4D, one of 'name', 'telephone number', 'storing order', 'storing date and time', 'category' and 'shortcut number' is selected. 4E shows a result of the phonebook server or the service controller searching and transmitting the result to the mobile communication terminal, and displays 'home phone number', 'mobile phone number' and 'work phone number'. 4F is an exemplary diagram of a screen configuration asking whether to call back when the subscriber selects any one of the search results. This screen configuration can be configured in various ways in detail.

Although specific embodiments of the present invention have been described with reference to the drawings, this is intended to be easily understood by those skilled in the art and is not intended to limit the technical scope of the present invention. Therefore, the technical scope of the present invention is determined by the matters described in the claims, and the embodiments described with reference to the drawings may be modified or modified as much as possible within the technical spirit and scope of the present invention.

According to the present invention, when the use of the mobile communication terminal is impossible and the personal phone book embedded in the mobile communication terminal cannot be used, there is an effect that the personal phone book service can be provided at any time from the phone book server on the mobile communication terminal of another person. Here, by using the USSD protocol, which is a method of setting and releasing a communication path, an effect of having a much faster transmission speed than a short message service, which is a storage and transmission method, is obtained. On the other hand, by using an intelligent network instead of a phone book server, it is possible to reduce the load on the network, and implement the function to call back to the retrieved phone number for the user's convenience.

In addition, by providing a phone number guide service of the general public such as restaurants, department stores, card companies, as well as phonebooks for each subscriber, there is an effect of replacing the '114 service' provided by voice from the existing landline. It also has the advantage of providing visual phone number guidance at low cost.

Claims (14)

A mobile communication system including a phone book server and providing a phone book service, The phone book server, Means for forming a communication path with a mobile communication terminal using the USSD protocol to transmit a USSD command; Means for storing and managing phonebook data and generating phonebook data in USSD format, And means for transmitting the phonebook data in the USSD format to a mobile communication terminal in association with a home location register in a mobile communication network. A mobile communication system for providing a phone book service, comprising: an intelligent network additional equipment (IP) and a service controller (SCP) for storing and managing phone book data in an intelligent network, The service controller, Means for forming a communication path with a mobile communication terminal using the USSD protocol to transmit a USSD command; Means for generating phonebook data in a USSD format from phonebook data received from the intelligent network additional equipment; And means for transmitting the phonebook data in the USSD format to the mobile communication terminal in association with a home location register in the mobile communication network. In claim 1, The mobile communication network, A home location register for transmitting a USSD command on the communication path and including a USSD handler for receiving phonebook data in USSD format from the phonebook server; A mobile communication network switch for transmitting a USSD command on the communication path and including a USSD handler for receiving phonebook data in USSD format from the home location register; A base station controller including a USSD handler for transmitting a USSD command on the communication path and receiving phonebook data in USSD format from the mobile communication network switch; And a base station including a USSD handler for transmitting USSD commands on the communication path and receiving phonebook data in USSD format from the base station controller. In claim 2, The mobile communication network, A home location register for transmitting a USSD command on the communication path and including a USSD handler for receiving phonebook data in USSD format from the service controller; A mobile communication network switch for transmitting a USSD command on the communication path and including a USSD handler for receiving phonebook data in USSD format from the home location register; A base station controller including a USSD handler for transmitting a USSD command on the communication path and receiving phonebook data in USSD format from the mobile communication network switch; And a base station including a USSD handler for transmitting USSD commands on the communication path and receiving phonebook data in USSD format from the base station controller. The method of claim 1 or 2, The mobile communication system uses a GSM method or a W-CDMA method. The method of claim 1 or 2, The phone book data includes a name and a phone number stored by each subscriber subscribed to a phone book service, or includes a name and a phone number of a phone book of a general public. In claim 1, The phone book server is connected to the Internet, the mobile communication system, characterized in that for storing, searching, modifying and deleting the phone book data through the Internet. In claim 2, The intelligent network additional equipment is connected to the Internet, and the mobile communication system characterized in that the storage, retrieval, modification and deletion of the phonebook data through the Internet. The method of claim 1 or 2, And the phonebook data includes at least one selected from a name, a mobile communication terminal number, a home phone number, a work phone number, a fax number, an email address, an address, and a short note. As a method for providing a phone book service in a mobile communication network, A first step of driving the phonebook service according to the phonebook service driving command transmitted from the mobile communication terminal to the phonebook server; A second step of authenticating a phone book service subscriber of the mobile communication terminal by the phone book server; A third step of searching for phonebook data stored in the phonebook server by inputting a search word on the mobile communication terminal; A fourth step of transmitting the phonebook data retrieved from the phonebook server to the mobile communication terminal; A fifth step of displaying the retrieved phonebook data through a display device of the mobile communication terminal; A sixth step of terminating the phonebook service by transmitting the phonebook service termination command from the mobile communication terminal to the phonebook server; Wherein each of the first to sixth steps transmits and receives a USSD command or phonebook data in a USSD format on a communication path using a USSD protocol between the mobile communication terminal and the phonebook server. As a method for providing a phone book service in a mobile communication network, A first step of driving the phonebook service according to the phonebook service driving command transmitted from the mobile communication terminal to the service controller in the intelligent network; A second step of authenticating a phone book service subscriber of the mobile communication terminal by the service controller; A third step of inputting a search word on the mobile communication terminal to retrieve phonebook data stored in the intelligent network additional equipment in the intelligent network; A fourth step of transmitting the phonebook data retrieved from the intelligent network additional equipment to the mobile communication terminal; A fifth step of displaying the retrieved phonebook data through a display device of the mobile communication terminal; And a sixth step of terminating the phonebook service by transmitting the phonebook service termination command from the mobile communication terminal to the service controller, wherein each step is a communication path using the USSD protocol between the mobile communication terminal and the service controller. And transmitting and receiving phonebook data in USSD command or USSD format on the mobile phone. The method of claim 10 or 11, And after the fifth step, repeating the third to fifth steps according to the subscriber's selection. The method of claim 10 or 11, And after the first step, selecting one of a subscriber-specific phonebook service for providing phonebook data including a name and a phone number stored by each subscriber and a telephone number guide service of a general public. How to provide phone book service. The method of claim 10 or 11, And after the fifth step, setting up a voice call between the mobile communication terminal and the mobile communication terminal or the PSTN terminal of the retrieved phonebook data according to the subscriber's selection.

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