KR20020067099A - System and Method for recharging function of portable mobile phone - Google Patents

Abstract

PURPOSE: A system and a method for charging a mobile communication terminal are provided to charge a mobile communication terminal using an electronic card and a credit card besides a coin by storing a charging equipment of a mobile communication terminal in a public telephone. CONSTITUTION: A public telephone(100) is capable of charging a mobile communication terminal using a coin, a credit card, and an electronic card, includes a cable capable of connecting to a data connection terminal of a mobile communication terminal, and is connected to a communication network(400). A financial institution(500) is connected to the public telephone(100) through the communication network(400) and approves a credit transaction with respect to a credit card inserted in the public telephone(100). A communication businessman(600) connects to the public telephone(100) through the communication network(400) and supplies a calling service to the mobile communication terminal. The public telephone(100) charges the mobile communication terminal using the balance of a coin or an electronic card and registers inherent number information detected from the mobile communication terminal and charging price information to the communication businessman(600). The communication businessman(600) adds the charging price to a charge of the mobile communication terminal.

Description

Recharging system and method of mobile communication terminal {System and Method for recharging function of portable mobile phone}

The present invention relates to a charging system and method of a mobile communication terminal, and more particularly, a mobile communication terminal for charging a mobile communication terminal using a public telephone having a charging function of the mobile communication terminal, and for calculating a charging fee. It relates to a charging system and method of.

Due to the industrialization and the development of information and communication, the demand for telephone penetration has reached its maximum, and public telephones are installed in streets and public places so that the general public can use them anywhere.

In recent years, the spread of personal mobile communication terminals capable of making calls while moving has been increasing exponentially, and these mobile communication terminals have been separately purchased and charged with a charger for charging a battery.

As the user of the mobile communication terminal proliferates as such, the use of the mobile communication terminal has become a daily necessity and a necessity of life, and a service for allowing the user to pay a certain cost from the outside and charge the mobile communication terminal has begun to be provided.

That is, the charging service provider installs the charging device of the mobile communication terminal in a place where the general public frequently enters, such as a convenience store, and if the user puts a coin of a certain amount, the user can charge the mobile communication terminal for a predetermined time. Even if the battery of the communication terminal is discharged, the user can conveniently charge and reuse it.

However, according to the conventional mobile communication terminal charging device, the following problem (s) occur.

That is, in the case of charging a mobile communication terminal by installing a separate mobile communication terminal charging device, the operator has to purchase and install several expensive dozens of mobile communication terminal charging device, the economic burden is increased.

In addition, since the user must use the portable communication terminal charging device while carrying coins and bills, it is inconvenient to carry coins and bills.

Accordingly, an object of the present invention is to solve such problem (s), and an object of the present invention is to embed a charging device of a mobile communication terminal in a public telephone widely distributed to the general public, and to use an electronic card and a credit card in addition to coins. By charging the mobile communication terminal, users who do not have coins, electronic cards, and credit cards can collect the charging fee of the mobile communication terminal in addition to the usage fee of the mobile communication terminal. The present invention provides a charging system for a mobile communication terminal capable of appropriately responding to a charging environment.

In addition, another object of the present invention is to provide a charging system of a mobile communication terminal that allows a service provider to purchase and manage a charging device at a low price by embedding a charging device of a mobile communication terminal in a public telephone.

In addition, another object of the present invention is to provide a charging method of a mobile communication terminal that allows a user to charge the mobile communication terminal by selectively paying a charging fee to the charging system of the mobile communication terminal.

1 is an overall configuration diagram of a charging system of a mobile communication terminal according to the present invention;

Figure 2 is a schematic internal block diagram of the public telephone shown in Figure 1,

3 is a flowchart illustrating an operation of a charging method of a mobile communication terminal according to the present invention.

<Description of the code | symbol about the principal part of drawing>

100: public telephone 101: power control unit

102: central processing unit 103: modem

104: display unit 105: input unit

106: telephone control unit 107: handset

108: card reader 109: coin discriminator

110: hook switch 111: charging control unit

200: mobile communication terminal 300: cable

400: communication network 500: financial institution

600: service provider

A feature of the present invention for achieving such object (s) provides a telephone function using coins and a credit card and an electronic card, and a charging function for charging a mobile communication terminal, and provides a data connection terminal of a mobile communication terminal. A public telephone including a connectable cable and connectable to a communication network; A financial institution that can be connected to a public telephone through a communication network and approves a credit transaction by a credit card inserted into the public telephone; It is possible to connect to a public telephone through a communication network, and includes a communication service provider for providing a call service to a mobile communication terminal; The public telephone charges the mobile communication terminal using the balance of coins and electronic cards, charges the mobile communication terminal by receiving a credit transaction for the charging fee of the mobile communication terminal using a credit card, and detects the data from the mobile communication terminal. Charges the mobile communication terminal after registering the registered unique number information and the charge rate information with the communication service provider; the service provider charges the charge for the use charge of the mobile communication terminal by using the registered unique number information and the charge rate information. It is at that point.

Here, the public telephone includes: an input unit including a function key for allowing a user to select a charging function and a telephone function; A power control unit for converting and supplying power supplied to the public telephone into driving power and charging power for charging the public telephone and the mobile communication terminal; A charging control unit which charges the mobile communication terminal using power supplied from the power control unit and detects the unique number information recorded in the mobile communication terminal; A coin discrimination unit for discriminating coins input by a user and detecting a total amount of coins injected; Detect whether the card is inserted, and determine the type of card inserted. If the inserted card is an electronic card, the charging fee is subtracted from the balance recorded on the electronic card, and new balance information is recorded. A card reader for detecting; A modem for interfacing a public telephone with a communication network; The charging control unit is controlled according to the coin input discrimination result of the coin discriminator, the charge charge reduction signal of the card reader, the credit transaction approval signal from the financial institution received through the modem and the communication network, and the registration result signal of the communication operator. It is preferable to include a telephone control unit for charging the terminal.

In addition, when the charging control unit starts counting from the charging start time and reaches a preset charging time, it is preferable that the charging control unit cuts off the charging power supplied from the power control unit.

In addition, the charging control unit, the total amount of coins put is more than the charging fee, the balance of the electronic card is more than the charging fee, the credit transaction is authorized from the financial server, or the carrier's unique number information and charging fee information It is preferable to charge the mobile communication terminal by controlling the charging controller only in at least one of the registered cases.

On the other hand, another aspect of the present invention, a public telephone that provides a charging function for charging a mobile communication terminal, including a cable that can be connected to the data connection terminal of the mobile communication terminal, and is connected to the communication network; A charging method of a mobile communication terminal using a charging system including a communication service provider, which is accessible to a public telephone through a communication network and provides a call service to the mobile communication terminal, the charging method comprising: when a charging function is selected, a mobile communication connected via a cable Turning on the power of the terminal and detecting the unique number information registered in the mobile communication terminal; Transmitting the detected unique number information and charge rate information to a communication service provider, and requesting registration of the unique number information and charge rate information; When the unique number information and charge rate information is registered, performing a charging function; The communication service provider is charged by using a registered unique number information to charge a charge to the usage fee of the mobile communication terminal.

On the other hand, another feature of the present invention provides a telephone function using a credit card and an electronic card and a charging function for charging a mobile communication terminal, and includes a cable connectable to a data connection terminal of the mobile communication terminal, A public telephone connected to the public telephone; A financial institution that can be connected to a public telephone through a communication network and approves a credit transaction by a credit card inserted into the public telephone; A charging method of a mobile communication terminal using a charging system including a communication service provider that can be connected to a public telephone through a communication network and provides a call service to a mobile communication terminal, the method comprising: charging a charging fee for charging a mobile communication terminal; Determine a means of payment; If the payment means is an electronic card, if the balance of the electronic card is more than the charging fee, the charging function is performed; If the payment means is a credit card, detect the card information of the credit card and transmit it to the financial institution, and request the approval of the credit transaction; If the credit is approved, the charging function is performed; If there is no payment means, turn on the power of the mobile communication terminal and detect the unique number information registered in the mobile communication terminal; Transmitting the detected unique number information and charge rate information to a communication service provider, and requesting registration of the unique number information and charge rate information; When the unique number information and charge rate information is registered, performing a charging function; The communication service provider is charged by using a registered unique number information to charge a charge to the usage fee of the mobile communication terminal.

On the other hand, another feature of the present invention provides a telephone function using coins and credit cards and electronic cards and a charging function for charging a mobile communication terminal, and includes a cable connectable to a data connection terminal of the mobile communication terminal, A public telephone connected to the communication network; A financial institution that can be connected to a public telephone through a communication network and approves a credit transaction by a credit card inserted into the public telephone; A charging method of a mobile communication terminal using a charging system including a communication service provider that can be connected to a public telephone through a communication network and provides a call service to a mobile communication terminal, the method comprising: charging a charging fee for charging a mobile communication terminal; Determine a means of payment; If the payment means is a coin, if the total amount of coins put is more than a charge, a charging function is performed; If the payment means is an electronic card, if the balance of the electronic card is more than the charging fee, perform the charging function; If the payment means is a credit card, the card information of the credit card is detected and transmitted to the financial institution, and the credit transaction is requested; If the credit transaction is approved, perform the charging function; If there is no payment means, turn on the power of the mobile communication terminal and detect the unique number information registered in the mobile communication terminal; Transmitting the detected unique number information and charge rate information to a communication service provider, and requesting registration of the unique number information and charge rate information; When the unique number information and the charging fee information is registered, the charging function is performed; The communication service provider is charged by using a registered unique number information to charge a charge to the usage fee of the mobile communication terminal.

Hereinafter, exemplary embodiment (s) of the present invention will be described in detail with reference to the accompanying drawings. First, in adding reference numerals to the elements of each drawing, it should be noted that the same elements are denoted by the same reference numerals as much as possible even if they are displayed on different drawings. In addition, in the following description there are shown a number of specific details, such as components of the specific circuit, which are provided only to help a more general understanding of the present invention that the present invention may be practiced without these specific details. It is self-evident to those of ordinary knowledge in Esau. In describing the present invention, when it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

1 is a block diagram of an overall charging system of a mobile communication terminal according to the present invention, FIG. 2 is a schematic internal block diagram of a public telephone shown in FIG. 1, and FIG. An operation flowchart showing a process of charging a communication terminal is shown.

The configuration of the present invention with reference to FIGS. 1 and 2 is as follows.

First, referring to FIG. 1, a system configuration applied to the present invention will be described. In the public telephone 100, the charging terminal of the public telephone 100 and the portable communication terminal 200 may be charged to charge the portable communication terminal 200. The cable 300 for connecting the data terminal is installed, and is connected to the financial institution 500 and the communication provider 600 through the communication network 400 so as to be able to communicate. That is, the present invention installs a charging control unit to be described later in the public telephone 100 to charge the mobile communication terminal 200, thereby simplifying the configuration of the device, reducing the installation cost of the device, Easy to manage

In addition, the public telephone 100 may selectively use the telephone function and the charging function of the mobile communication terminal 200 using coins, electronic cards, credit cards, and the like.

Meanwhile, referring to FIG. 2, the internal structure of the public telephone 100 will be described. The power control unit 101 may request an AC power supplied to the public telephone 100 from each component in the public telephone 100. Is converted into a feeder and supplied to each component.

The central processing unit 102 controls the overall operation of the public telephone 101. That is, the central processing unit 102 controls the operation state of the modem 103 and the display unit (for example, the liquid crystal display device) 104, detects various input signals input through the input unit 105, and In communication with the control unit 106, overall control of the operation of each component necessary for the telephone function is performed.

The input unit 105 is arranged with function keys for selecting various functions including a charging function and a telephone function, and converts a user's input into an electrical input signal and transmits it to the central processing unit 102.

The display unit 104 displays the operating state of the public telephone 100. Here, the input unit 105 and the display unit 104 may be integrated to form a touch screen.

The telephone control unit 106 is responsible for the overall control of the telephone function of the public telephone 100. That is, the phone control unit 106 delivers the handset sound received through the modem 103 to the handset 107 and simultaneously transmits the call sound from the handset 107 to the modem 103, and the card reader. Performing an authentication process for reading the card put into the (108) and at the same time controls the overall operation of the card reader 108, while controlling the operating state of the coin discriminator (109) from the coin discriminator (109) The call state is controlled using the transmitted coin discrimination signal, and the operation state of the telephone function is controlled according to the on / off state of the hook switch 110. In addition, the phone control unit 106 transmits the unique number of the mobile communication terminal 200 transmitted from the charging control unit 111 to the communication provider 600, and controls the charging control unit 111 of the mobile communication terminal 200. Control the state of charge.

The handset 107 has a built-in speaker and a microphone so that the user can perform the telephone function in performing the telephone function.

The card reader 108 determines the type of the inserted card, detects card information according to the result, and calculates the balance of the card. That is, if the card reader 108 is an electronic card (IC-embedded card), the card reader 108 records by subtracting the charging charge from the remaining balance information recorded on the card, and provides the result to the telephone control unit 106, thereby providing a telephone function and the like. Ask to use the charging function. In addition, if the inserted card is a credit card, card information such as a card number and expiration date recorded on the credit card is detected, and the detected card information and transaction amount are transmitted to the telephone control unit 106 to be approved by the financial institution 500. Ask.

The coin discriminator 109 determines the type of coin put (for example, 10 won, 50 won, 100 won, 500 won, etc.) and transmits the determined result to the telephone control unit 106.

The hook switch 110 detects the on / off state of the handset 107 by the user and transmits the result to the telephone control unit 106.

The modem 103 connects the public telephone 100 and the communication network 400. That is, the modem 103 modulates the call sound and various data transmitted from the telephone control unit 106 under the control of the central processing unit 102 and transmits it to the communication network 400, and the sound is received from the communication network 400. And demodulate and transmit various types of data to the telephone control unit 106.

The charging control unit 111 detects the unique number from the mobile communication terminal 200, transmits the unique number to the phone control unit 106, and charges the mobile communication terminal 200 under the control of the phone control unit 106.

Referring to Figure 3 with respect to the operation of the present invention having such a configuration as follows.

First, when the user connects the charging device installed in the public telephone 100 and the portable communication terminal 200 with the cable 300, and selects the charging function through the input unit 105, the central processing unit in the public telephone 100 In operation S101, the user determines whether a charging function for charging the mobile communication terminal 200 is selected by the user. Here, if the charging function is not selected, the central processing unit 102 controls to perform a general telephone function (S102).

If it is determined in step S101 that the charging function is selected, the central processing unit 102 connects the public telephone 100 and the mobile communication terminal 200 through the telephone control unit 106 and the cable 300. It is checked whether or not the connection is made (S103). That is, the central processing unit 102 requests the telephone control unit 106 to confirm whether the cable 300 is connected, and the telephone control unit 106 transmits the information of the mobile communication terminal 200 through the charging control unit 111. For example, it is determined whether the unique number information) is detected to determine whether the cable 300 is connected. If the cable 300 is not connected in this step S103, the central processing unit 102 displays a guide for requesting to connect the cable 300 to the display unit 104 (S104).

If the cable 300 is connected in this step S103, the central processing unit 102 requests to determine whether the method of paying the charging fee has been selected. Accordingly, the telephone control unit 106 outputs a control signal to the coin discriminator 109 and the card reader 108 to determine whether there are any coins or cards inserted.

At this time, when the user puts coins (S105), the coin discriminator 109 determines the type of coins put, detects the total amount of coins put and provides them to the phone control unit 106, the phone control unit 106 It is checked whether the total amount of coins put has reached the charge (S106). Here, if the total amount of coins put does not reach the charge, it returns to step S106 above to check whether the total amount of coins put reaches the charge.

If the total amount of coins put in step S106 reaches a charge rate, the phone controller 106 controls the charge controller 111 to charge the mobile communication terminal 200 (S107). That is, when a charging command is received from the telephone control unit 106, the charging power supplied from the power control unit 101 is supplied to the portable communication terminal 200 through the charging control unit 111. At this time, the charging control unit 111 starts counting, and when a predetermined charging time (for example, 20 minutes) elapses, it is determined that the charging power supplied from the power control unit 101 is supplied to the mobile communication terminal 200. Block it. Therefore, the user can charge the portable communication terminal 200 using coins.

If the user inserts a card, the telephone control unit 106 determines whether the card inserted through the card reader 108 is an electronic card or a credit card. Here, if the inserted card is an electronic card (S108), the process proceeds to the above step S106, and it is determined whether the balance of the electronic card reaches the charge rate, and all the steps after the above-mentioned step S106 according to the determined result. Perform the process. Therefore, the user can charge the mobile communication terminal 200 using the electronic card.

If the card inserted by the user is a credit card (S109), the phone control unit 106 controls to detect the card information through the card reader 108, and the card reader 108 detects the card information from the inserted credit card. To provide it to the phone control unit 106. The telephone control unit 106 requests the central processing unit 102 to operate the modem 103, and thus the central processing unit 102 operates the modem 103. Then, the phone control unit 106 connects to the financial institution 500 through the modem 103 and the communication network 400, and transmits the card information and the charge rate information detected from the card reader 108 to request authorization ( S110). Accordingly, the financial institution 500 determines whether to approve using the card information and the charging fee information. At this time, if the authorization for the card is rejected (S111), the authorization rejection signal is transmitted to the telephone control unit 106 through the modem 103, the telephone control unit 106 transmits the authorization rejection signal to the central processing unit 102. send. The central processing unit 102 displays on the display unit 104 that the credit card has been rejected in accordance with the authorization rejection signal transmitted from the telephone control unit 106 (S112), and ends all processing.

If, in the above step (S111) the credit transaction by the card is approved (S111), the approval signal is transmitted to the telephone control unit 106 via the modem 103, the telephone control unit 106 according to the approval signal In step S107, the charging operation of the mobile communication terminal 200 is started. Therefore, the user can charge the mobile communication terminal 200 using a credit card.

On the other hand, if it is determined in step S109 that the credit card is not, the phone control unit 106 determines that the user has not put coins or cards, and is connected by the cable 300 through the charging control unit 111 The power of the mobile communication terminal 200 is turned on (S113). Accordingly, the power of the mobile communication terminal 200 is turned on (on), the charging control unit 111 extracts the unique number information of the mobile communication terminal 200 (S114), and then transmits to the phone control unit 106, The telephone control unit 106 requests the central processing unit 102 to operate the modem 103 to transmit the unique number information and the charging charge information of the mobile communication terminal 200 transmitted from the charging control unit 111. Accordingly, when the central processing unit 102 operates the modem, the telephone control unit 106 connects to the communication service provider 600 via the modem 103 and the communication network 400, and detects from the portable communication terminal 200. The unique number information and charge rate information is transmitted to the communication provider 600 (S115). Thereafter, the communication provider 600 generates a registration signal indicating that the unique number information is registered, and the generated registration signal is transmitted to the telephone control unit 106 through the communication network 400 and the modem 103 (S116). In step 106, the mobile station 200 performs a charging operation of the mobile communication terminal 200 according to the received registration signal. Therefore, the user can charge the mobile communication terminal using the unique number information of the mobile communication terminal 200, the communication provider 600 using the unique number information of the registered mobile communication terminal 200, the mobile communication terminal Charge charges are collected at the time of charge collection.

As described above, although the specific embodiment (s) have been described in the detailed description of the present invention, various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiment (s), but should be defined by the claims below and equivalents thereof.

As a result, according to the charging system and method of the mobile communication terminal according to the present invention, the following advantage (s) occurs.

In other words, it is possible to charge a mobile communication terminal by using a charging device of a mobile communication terminal in a public telephone widely distributed to the general public, and to charge a mobile communication terminal using an electronic card and a credit card in addition to coins. In the case of a user who does not have it, the charging fee of the mobile communication terminal can be added to the use fee of the mobile communication terminal, thereby providing convenience to the user.

In addition, by embedding the charging device of the mobile communication terminal in the public telephone, the operator can purchase and manage the charging device at a low price.

Claims (7)

A public telephone that provides a telephone function using a coin, a credit card and an electronic card, and a charging function for charging a mobile communication terminal, and includes a cable connectable to a data connection terminal of the mobile communication terminal, the public telephone being connected to a communication network; A financial institution connectable to the payphone through the communication network and approving a credit transaction by the credit card inserted into the payphone; And A communication provider connectable to the public telephone through the communication network and providing a call service to the mobile communication terminal; The public telephone charges the mobile communication terminal by using the balance of the coin and the electronic card and charges the mobile communication terminal by receiving a credit transaction for the charge of the mobile communication terminal by using the credit card. And charging the mobile communication terminal after registering the unique number information and the charge rate information detected from the mobile communication terminal with the communication service provider. The communication service provider, the charging system of the mobile communication terminal, characterized in that by using the registered unique number information and the charging fee information charged by adding the charge to the charge of the mobile communication terminal. The public telephone according to claim 1, An input unit including a function key for allowing a user to select the charging function and the telephone function; A power control unit for converting and supplying power supplied to the public telephone into driving power and charging power for charging the public telephone and the portable communication terminal; A charging control unit which charges the mobile communication terminal using power supplied from the power control unit and detects the unique number information recorded in the mobile communication terminal; A coin discrimination unit for discriminating coins input by a user and detecting a total amount of coins input; Detect whether the card is inserted, determine the type of the inserted card, and if the inserted card is the electronic card, subtract the charging fee from the balance recorded on the electronic card to record new balance information and at the same time the inserted card is the credit card. A card reader for detecting card information; A modem for interfacing the public telephone with the communication network; And The coin input discrimination result of the coin discriminator, the charge rate reduction signal of the card reader, a credit transaction approval signal from a financial institution received through the modem and the communication network, and a registration result signal of the communication service provider Charging system of a mobile communication terminal comprising a telephone control unit for controlling the charging control unit to charge the mobile communication terminal. The method of claim 2, wherein the charging control unit, The charging system of the mobile communication terminal, characterized in that the charge power supplied from the power control unit is cut off when a predetermined charging time is reached by starting a count from the charging start time. According to claim 2 or 3, wherein the charging control unit, The total amount of coins put is equal to or greater than the charging fee, the balance of the electronic card is equal to or greater than the charging fee, the credit transaction is approved from the financial server, or the telecommunication service provider provides the unique number information of the mobile communication terminal and the Charging system of a mobile communication terminal, characterized in that for charging the mobile communication terminal by controlling the charging control only in at least one case of the charge rate information is registered. A public telephone that provides a charging function for charging the mobile communication terminal, includes a cable connectable to a data connection terminal of the mobile communication terminal, and is connectable to a communication network; In the charging method of a mobile communication terminal using a charging system that can be connected to the public telephone through the communication network, and comprising a communication service provider for providing a call service to the mobile communication terminal: If a charging function is selected, turning on the power of the mobile communication terminal connected through the cable and detecting the unique number information registered in the mobile communication terminal; Transmitting the detected unique number information and the charge rate information to the communication service provider, and requesting registration of the unique number information and the charge rate information; Performing the charging function when the unique number information and the charge fee information are registered; And And charging the communication service provider by adding the charging fee to the service fee of the mobile communication terminal using the registered unique number information. A public telephone providing a telephone function using a credit card and an electronic card and a charging function for charging a mobile communication terminal, including a cable connectable to a data connection terminal of the mobile communication terminal, and connected to a communication network; A financial institution connectable to the payphone through the communication network and approving a credit transaction by the credit card inserted into the payphone; And In the charging method of a mobile communication terminal using a charging system that can be connected to the public telephone through the communication network, and comprising a communication service provider for providing a call service to the mobile communication terminal: Determining payment means for paying a charging fee for charging the mobile communication terminal; If the payment means is the electronic card, performing the charging function when the balance of the electronic card is equal to or greater than the charging fee; If the payment means is the credit card, detecting card information of the credit card and transmitting the credit card information to the financial institution and requesting approval of a credit transaction; If the credit transaction is approved, performing the charging function; If there is no payment means, turning on the power of the mobile communication terminal and detecting the unique number information registered in the mobile communication terminal; Transmitting the detected unique number information and the charge rate information to the communication service provider, and requesting registration of the unique number information and the charge rate information; Performing the charging function when the unique number information and the charge fee information are registered; And And charging the communication service provider by adding the charging fee to the service fee of the mobile communication terminal using the registered unique number information. A public telephone that provides a telephone function using a coin, a credit card and an electronic card, and a charging function for charging a mobile communication terminal, and includes a cable connectable to a data connection terminal of the mobile communication terminal, the public telephone being connected to a communication network; A financial institution connectable to the payphone through the communication network and approving a credit transaction by the credit card inserted into the payphone; And In the charging method of a mobile communication terminal using a charging system that can be connected to the public telephone through the communication network, and comprising a communication service provider for providing a call service to the mobile communication terminal: Determining payment means for paying a charging fee for charging the mobile communication terminal; If the payment means is a coin, performing the charging function when the total amount of coins put is more than the charging fee; If the payment means is the electronic card, performing the charging function when the balance of the electronic card is equal to or greater than the charging fee; If the payment means is the credit card, detecting card information of the credit card and transmitting the credit card information to the financial institution and requesting approval of a credit transaction; If the credit transaction is approved, performing the charging function; If there is no payment means, turning on the power of the mobile communication terminal and detecting the unique number information registered in the mobile communication terminal; Transmitting the detected unique number information and the charge rate information to the communication service provider, and requesting registration of the unique number information and the charge rate information; Performing the charging function when the unique number information and the charge fee information are registered; And And charging the communication service provider by adding the charging fee to the service fee of the mobile communication terminal using the registered unique number information.