KR100349408B1 - Method for selling electronic money - Google Patents

Abstract

The present invention relates to an electronic gift voucher selling method for purchasing an intangible electronic voucher to be used as a payment method for goods at the time of purchase, through a communication network, according to a call connection from a telephone wired or wirelessly connected to a telephone communication network. A first step of confirming a sales request of the electronic gift certificate; A second step of requesting the call-connected telephone to input necessary data for electronic voucher sales including an electronic voucher purchase amount and a password; A third step of providing data inputted according to the request to the management server of the telephone communication network together with the telephone number of the connected telephone and requesting whether the electronic voucher can be sold to the user; A fourth step of the management server determining the justification of the electronic voucher sale request from the call connection state of the telephone corresponding to the user data received from the electronic voucher issuing server and the telephone number in the data; And a fifth step of providing, by the electronic voucher issuing server, a unique number for an intangible electronic voucher corresponding to the input purchase amount to a telephone connected through the telecommunication network. It is a very useful invention that can purchase the electronic voucher of the through the communication network and use it, to achieve the convenience and safety of electronic commerce to eliminate the obstacles of use, to promote the spread of credit transactions.

Description

Method for selling electronic money

The present invention relates to a method for selling electronic vouchers, and more particularly, to an electronic voucher selling method for purchasing an intangible electronic voucher to be used as a payment for goods at the time of purchase.

In the purchase of a conventional electronic gift certificate (telephone currency), the merchant selling the electronic gift certificate pays the amount in cash or credit card corresponding to the electronic gift certificate, and then purchases the electronic gift certificate or the credit card that is held on the communication network. The purchase is made by providing the unique number and expiration date to the electronic voucher issuing agency, requesting the credit card payment server to request the credit card number and expiration date provided from the user at the electronic voucher issuing agency. When the voucher is purchased, the electronic voucher identification number is printed on a card or the like, or only the identification number is notified.

However, in such a purchase method, since it is necessary to directly visit the retailer who sells the electronic gift certificate, it is not free to purchase time and space. In addition, it is cumbersome to carry cash when purchasing a cash, and the amount of money is paid in advance. There was a burden to be done. In the case of purchasing an electronic voucher with a credit card using a communication network, the electronic voucher is purchased by providing only the credit card number and the expiration date to the electronic voucher issuer through the communication network without entering a password for personal identification of the credit card. In the event that a credit card is lost due to user's negligence or another person illegally acquires the credit card or its information, it is easy to purchase an electronic gift certificate without a signature, and malicious transactions such as fraudulent transactions are frequently occurring. There was an unsafe problem as a method of purchasing an electronic gift certificate having the same purchasing power as money.

Accordingly, an object of the present invention is to provide an electronic voucher selling method, which is designed to solve the above problems, so that intangible electronic vouchers can be safely and conveniently purchased without using cash or credit card. It is.

Figure 1 shows the overall network configuration of the electronic voucher selling method according to the present invention,

FIG. 2 shows a detailed configuration of the electronic gift certificate issuing server in the network configuration of FIG.

Figure 3 shows the operation of the preferred embodiment of the electronic voucher selling method according to the present invention,

4 is a view showing the contents of storage of the service provider management server of FIG.

FIG. 5 illustrates the contents of a hard disk provided in the electronic voucher issuing server of FIG.

6 illustrates an operation process of a product purchase method using an intangible electronic gift certificate,

Figure 7 shows the operation of another embodiment of the electronic voucher selling method according to the present invention.

※ Explanation of code for main part of drawing

100: telephone communication network 200: electronic voucher issuing server

210: network connection unit 220: DTMF detection unit

230: clock portion 240: central processing unit

241: ROM 250: voice recording disk

260: Voice Restorer 270: Hard Disk

300: communication service provider management server 400: merchandise distributor

According to an aspect of the present invention, there is provided a method for selling an electronic gift certificate, comprising: a first step of confirming a sale request of an electronic gift certificate according to a call connection from a telephone wired or wirelessly connected to a telephone network; A second step of requesting the call-connected telephone to input necessary data for electronic voucher sales including an electronic voucher purchase amount and a password; A third step of providing data inputted according to the request to the management server of the telephone communication network together with the telephone number of the connected telephone and requesting whether the electronic voucher can be sold to the user; A fourth step of the management server determining the justification of the electronic voucher sale request from the call connection state of the telephone corresponding to the user data received from the electronic voucher issuing server and the telephone number in the data; And a fifth step of providing, by the electronic voucher issuing server, a unique number for an intangible electronic voucher corresponding to the input purchase amount to a telephone connected through the telecommunication network according to the determination.

A first step of confirming a sales request of an electronic gift certificate according to a call connection from a telephone wired or wirelessly connected to a telephone communication network; A second step of requesting the call-connected telephone to input necessary data for electronic voucher sales including an electronic voucher purchase amount and a password; A third step of determining whether the electronic voucher can be sold to the user from the input data; A fourth step of forming sales information according to the determination and providing the sales information to a management server of the telephone communication network; And the management server of the telephone communication network forms the charging information according to the sales information according to the call connection state of the telephone corresponding to the telephone number in the sales information, and at the same time, according to the determination of the third step, the electronic gift certificate issuing server And a fifth step of providing a unique number for an intangible electronic gift certificate corresponding to the input purchase amount to a telephone connected through the telecommunication network.

Hereinafter, an embodiment of an electronic voucher selling method according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a diagram showing the entire network configuration of the electronic voucher selling method according to the present invention, a wired telephone (TP1, TP2, TP3, ...) installed in the house, the telephone communication network managed by the operator management server (100) ), An electronic voucher issuing server 200 for issuing an intangible electronic voucher to the user, and operates the telephone communication network 100, and charges for the electronic voucher issued by the electronic voucher issuing server 200 together with the telephone fee. It comprises a management server 300 of a communication service provider receiving agency, and a merchandise distributor 400 for selling the goods so that the user can purchase the goods in an intangible electronic gift certificate.

FIG. 2 shows a detailed configuration of the electronic voucher issuing server 200 in the entire network configuration of FIG. 1, and is connected to the telephone communication network 100 to transmit and receive connection signaling and signals. ; DTMF detection unit 220 for detecting the received DTMF tone; A clock unit 230 which keeps track of the current date and time; A voice storage disk 250 in which voice guidance messages are stored in data form; A voice decompressor 260 for restoring the compressed voice data stored in the voice storage disk 250 and converting the compressed voice data into a voice message; A hard disk 270 in which programs, subscriber information, sales information, and the like are recorded and stored; And a central processing unit 240 that executes programs on the ROM 241 and the hard disk 270 to perform operations such as searching and data update storage of the hard disk 270.

3 is a flowchart illustrating a preferred embodiment of an electronic voucher selling method according to the present invention. Hereinafter, the selling method of FIG. 3 according to the present invention will be described with reference to the network configuration of FIG. 1 and the detailed configuration of FIG. It explains in detail.

First, in order to provide an electronic voucher issuing service through the telephone communication network 100, the electronic voucher issuing agency, first, a special telephone number (for example, a telecommunications company) that pays a call charge (for example, , 700-XXXX) will be granted from the service provider. In addition, a user who wants to purchase an electronic gift certificate through the communication network 100 provides his / her home phone number and a password used to purchase the electronic gift certificate to the telecommunications provider to apply for a subscription using a telephone service, thereby making a phone call to purchase an electronic gift certificate. It can also be through, and can also use this without subscribing to the service will be described in detail later.

In such a state, a user who wants to purchase an intangible electronic voucher, dials the recipient's telephone number '700-XXXX' specified in the electronic voucher issuing server 200 by using a wired telephone (TP _X ) in the home. Request a call connection to the gift certificate issuing server 200 (Fig. 3 (1)).

Accordingly, when a call connection is made with the electronic voucher issuing server 200 through the telephone communication network 100, the central processing unit 240 in the electronic voucher issuing server 200 is a program on the hard disk 270. By doing this, the fact is recognized through the network connection 210.

According to the call connection, the CPU 240 reads compressed voice data corresponding to the entire service selection guide message among voice guide messages previously stored in the voice storage disk 250, and the read voice data The voice restorer 260 restores the voice message to the voice message, and then outputs the voice message to the wired telephone TP _X of the user connected through the network connection unit 210 (FIG. 3 (2)).

Accordingly, the user hears a voice message regarding the entire service selection guide provided from the electronic voucher issuing server 200, and the electronic voucher issuing server 200 is in a service waiting state waiting for a response from the user.

The entire service selection guide message may be a voice guide with the following content.

"Please press the number of the service you want.

No. 1: Purchase an Electronic Gift Certificate

2nd: Purchase History

Number 3: cancel

............ "

The user selects a specific item to be serviced out of the entire service items by using a dial button on a landline telephone (TP _X ) in a call connection state.If the user wants to purchase an electronic gift certificate, the user selects option 1 3 (3), the DTMF detection unit 220 in the electronic gift certificate issuing server 200 detects a DTMF signal input through the network connection unit 210, and the central processing unit 240 Checks the service selected by the user from the detected DTMF signal.

Subsequently, the central processing unit 240 reads the guide message requesting the sequential input of necessary data for purchasing the selected electronic voucher from the voice storage disk 250 and the call through the network connection unit 210. After outputting to the wired telephone TP _X of the connected user (Fig. 3 (4)), the service waits for the user's response again.

According to the voice prompt message, the user inputs a password, a purchase amount, and a caller's telephone number of the user, which are necessary data for electronic voucher purchase, in order of input request (FIG. 3 (5)). In this case, the password is automatically transferred to the service provider if the user has previously applied for a 'telephone network use purchase' service to the service provider. In order to provide a partial number of the bank account number for direct debit provided in advance to the telecommunications provider, that is, if the bank account number is 386-02-11XXXX, the four digits of the last digit is entered as the password.

The DTMF detection unit 220 detects DTMF signals sequentially input through the network connection unit 210, and the CPU 240 checks data input by a user from the detected DTMF signal, and then The input data is transmitted to the communication service provider management server 300 through the network connection unit 210 and the dedicated line (Fig. 3 (6)). At this time, the caller's telephone number may be known by inputting to the user, but since the telephone communication network 100 knows the caller currently connected to the electronic gift certificate issuing server 200, the caller's telephone number is received from the telephone communication network 100. May be received.

The management server 300 receiving the data is to determine whether the user can purchase the electronic voucher of the electronic voucher (Fig. 3 (7)), the first caller's telephone number is the telephone communication network 100 In the current e-gift voucher issuing server 200 checks whether the state is in a call, and if it is confirmed in the current call state, the password of the received data registered at the time of service subscription, or the caller ID that is not a separate subscription In case of payment, check whether the passwords are the same by comparing some of the bank account numbers applied for payment.

If the two passwords are the same, the service provider management server 300 determines the user as a legitimate user who can purchase an electronic gift certificate, and the received purchase amount as the purchase history of the user specified from the received caller's telephone number. And the present time and the like as shown in Fig. 4 (Fig. 3 (8)), and notifies the electronic voucher issuing server 200 whether the user can purchase the electronic voucher (Fig. 3 (9)).

If it is determined that the caller's telephone number is not in a busy state with the current electronic voucher issuing server 200, the telecommunication service provider management server 300 does not approve the sales request and does not store the purchase history. As described above, after checking whether the caller's telephone number is in a busy state and performing the subsequent operation, regardless of the actual purchase of the electronic voucher of the user, the electronic voucher is used by the user to purchase the electronic voucher. It is intended to pretend to purchase or to maliciously create a purchase request information, to prevent unfair advantage.

On the other hand, the central processing unit 240 in the electronic voucher issuing server 200 according to the notification content of the communication service provider management server 300 received through the network connection unit 210, the user purchases electronic vouchers In the case of a possible user, an intangible electronic gift certificate corresponding to the purchase amount requested by the user is issued, and the unique number of the issued electronic gift certificate, the call start time of the user, and the sales amount of the electronic gift certificate correspond to the hard disk 270. In conjunction with the user caller's telephone number and stored in the form of FIG.

Subsequently, the central processing unit 240 transmits a unique number of the issued electronic gift certificate through the network connection unit 210 and the telephone communication network 100 in the form of a voice message through the telephone TP _{X that} is currently connected. 3 (10), the user listens to the unique number of the electronic gift certificate provided in the form of the voice message and stores it, and then presents it at the time of payment for the goods and freely uses it like electronic money.

After the sale of the electronic voucher of the above-described process, for example, once every day, for example, once a day, the central processing unit 240 collects the sales amount and the telephone numbers of the callers who purchased the amount and adds the summed information to the network connection unit ( Provided to the carrier management server 300 through 210, the billing request for the amount of the issued electronic gift certificate (Fig. 3 (11)).

The communication service provider management server 300 stores the purchase price and the caller's phone number in the purchase price and the purchaser's phone number in order to confirm the validity of the charge according to the charging request of the electronic gift certificate issuing server 200. And if it is determined that the requested charge is valid from the comparison result, the charge is justified in the stored information as shown in Fig. 4 (Fig. 3 (12)), and the purchase amount of the electronic gift certificate displayed as described above. For the telephone subscriber, the telephone bill is provided to the telephone subscriber in the form of a notice together with the telephone fee, so that the telephone subscriber can pay the carrier for the purchase of the electronic voucher for a predetermined period of time together with the telephone charge, or the carrier management server is registered. From the subscriber's bank account number will be automatically transferred to the carrier's bank account.

If the user pays the purchase amount of the electronic gift certificate together with a telephone charge or is automatically transferred to the bank account of the telecommunications operator, the telecommunications provider provides the electronic gift certificate issuer with the amount of the paid electronic gift certificate, The amount settlement will be made between the service provider and the electronic voucher issuing agency. At this time, the electronic voucher issuing agency compares the amount recorded on the electronic voucher issuing server 200 with the settled amount and, if different, provides sales information to the telecommunications provider to identify the cause of the difference.

FIG. 6 illustrates an operation process of an article purchase method using an electronic voucher purchased by the above method, and the article purchase method according to the operation procedure of FIG. 6 is as follows.

First, when a user selects an item to purchase from the merchandise seller 400 (Fig. 6 (1)), the merchandise seller 400 requests the payment of the item selected by the user. If the user wants to pay for the goods using the intangible electronic gift certificate, the merchandise distributor 400 requests the user for the unique number of the electronic gift certificate (Fig. 6 (2)).

Accordingly, the user presents the unique number of the electronic gift certificate provided from the electronic gift certificate issuing agency to the article selling place 400 (FIG. 6 (3)), whereby the article selling place 400 is unique to the electronic gift certificate. By requesting the electronic voucher issuing goods payment request data consisting of the number, the price of goods, and the unique identification code of the goods seller 400, the user requests the payment of the goods for the purchased goods ( (4) of FIG. 6).

The central processing unit 240 of the electronic voucher issuing server 200 determines whether to approve the payment of the goods price from the input data payment request data (Fig. 6 (5)), the central processing device ( 240 identifies the user from the electronic voucher unique number in the item payment request data, and confirms the currently available balance of the electronic voucher issued to the specified user from the storage contents of the hard disk 270. If the currently available balance is more than the price of the requested item, the payment of the price of the item is allowed, and accordingly, the central processing unit 240 updates the currently available balance of the user based on the price of the paid item. By storing, payment of the goods price is made.

In addition, the central processing unit 240 stores the payment history in the hard disk 270 in association with the item sales company identification code in the received item price payment request data, the price of goods with the product seller 400 It is used at the time of settlement.

The central processing unit 240 notifies the merchandise seller 400 whether to approve payment of the merchandise (FIG. 6 (6)), and accordingly, the merchandise seller 400 determines whether the merchandise payment is approved. (7 of FIG. 6), the user can confirm whether the payment for goods is approved.

In addition, the merchandise distributor 400 promises to directly deliver the goods selected by the user to the user or to later deliver them only when the electronic voucher issuing goods payment is approved. Payment is complete.

7 is a case where the user password is stored in association with the caller's phone number on the hard disk 270 of the electronic gift certificate issuing server 200 according to a separate service request to the electronic gift certificate issuing agency other than the communication service provider. 7 illustrates an operation process of the electronic voucher selling method. In the selling method as shown in FIG. 7, the user needs data according to a guide message requesting input of necessary data for the electronic voucher purchase of the electronic voucher issuing server 200. Up to the process of inputting is made the same as in the above-described process of Figure 3 (Fig. 7 (1) to (5)).

According to the input of the necessary data for purchasing the electronic voucher of the user, the central processing unit 240 is specified from the caller's telephone number provided from the telephone communication network 100 or the caller's telephone number directly input by the user The password is confirmed from the stored contents of the hard disk 270.

The central processing unit 240 compares the confirmed user password with the user password in the input data, and if the two passwords are the same, determines that it is a legitimate electronic gift certificate purchase request (FIG. 7 (6)). If the central processing unit 240 determines that the legitimate user's purchase request, the billing information consisting of the input user password, the purchase amount, and the caller's telephone number is provided to the telecommunications service provider management server 300 (Fig. 7 (7)). Accordingly, the management server 300 of the telecommunications operator according to the billing information received from the electronic voucher issuing server 200, whether the received caller's telephone number is currently in communication with the electronic voucher issuing server 200. Confirm through the telephone communication network 100, and if it is confirmed that the current busy state, the communication service provider management server 300 stores the received purchase amount and the current time as billing information in association with the received caller's telephone number. 7 (8), the electronic voucher issuing server 200 transmits the unique number of the sold electronic voucher to the caller's telephone (TPX) (Fig. 7 (9)), the buyer who listened to the number Record the number and end the call for the purchase of an electronic gift certificate.

When a user who purchases an intangible electronic voucher by the same method as the above two embodiments requests the electronic voucher issuing server 200 to purchase the electronic voucher again, the electronic voucher issuing server 200 The central processing unit 240 checks whether the user is a legitimate user, as described above, from the user's password among the data input by the user for the electronic voucher purchase, and if the user is legitimate, the central processing unit 240 The usage history stored in association with the caller's telephone number is searched from the hard disk 270 to check the usage history of the user.

If there is an available balance for the electronic voucher previously purchased from the user's usage history, the central processing unit 240 is a voice prompt message indicating that there is a currently available balance through the user through the network connection 210 By notifying the user, a confirmation is made as to whether to add the new purchase amount to the current available balance.

When the user requests the sum of the amounts together with the input of the necessary data for the purchase of the electronic voucher, the CPU 240 adds the amounts and newly generates an intangible electronic voucher corresponding to the sum. Then, the unique number of the electronic gift certificate and the sum of the sum are set as the user's currently available balance, and are stored in association with the caller's telephone number in the hard disk 270. At this time, the electronic voucher issuing server 200 requests a charge to the telecommunication service provider management server 300 only for the amount of the newly sold electronic voucher (Fig. 3 (6) and (11), Fig. 7 (7)). )

In addition, the central processing unit 240 informs the user through the network connection unit 210 of the newly issued unique number for the electronic voucher, thereby allowing the user to use the unique number for the newly issued electronic voucher in the future. To pay for the goods.

If the user does not want to sum the amount of money, the central processing unit 240 leaves the user's current balance as is, and newly issues an electronic gift certificate corresponding to the amount of money newly requested by the user, thereby providing the newly issued electronic gift certificate. The unique number and the new purchase amount are stored in association with the caller's phone number in the hard disk 270. In this case, the user can pay for the goods using both the previously purchased electronic gift certificate unique number and the newly purchased electronic gift certificate unique number.

In the above embodiment. In designating the telephone number of the electronic voucher issuing server 200, the electronic voucher issuing service is a special station number, for example, '700-XXXX', and other services (such as usage inquiry) are general station numbers, for example, '777. -XXXX ', when the carrier management server 300 transmits the user data (purchase amount, etc.) for the user's electronic voucher purchase from the electronic voucher issuing server 200, the buyer is currently the electronic By checking whether the state is in communication with the gift voucher issuing server 200, even though the user requests the service history inquiry service from the electronic voucher issuing server 200, the user deliberately presents false data as requesting the purchase of the electronic voucher. It can certainly prevent taking wrong profits in advance.

In this way, when a special number for only issuing an electronic voucher is designated, it may be fixed without having to select the electronic voucher purchase amount. In such a case, the electronic voucher of a predetermined amount may be sold by the following simple procedure instead of the above-described sales process.

In other words, the electronic voucher issuing agency commits to a telecommunications operator with a specific telephone number '700-XXX1' selling a gift certificate of 50,000 won and '700-XXX2' selling a gift certificate of 100,000 won. For the contracted telephone number, if the communication server's management server 300 lasts a predetermined call time between the originated telephone number and the destination's telephone number (700-XXX1 or 700-XXX2), for example, 20 seconds or more. The call charges shall be charged 50,000 won or 100,000 won, of which the amount equivalent to the sale amount (for example, 95%) may be settled later with the gift certificate issuer.

To this end, the electronic gift voucher issuing server 200 provides a guide message of about 10 seconds to the incoming call and the caller is charged if the caller maintains the call until the caller hears an output such as 'ding dong deng' after 10 seconds. If the time is passed, the electronic voucher unique number is provided to the sender, so that the amount can be settled later from the telecommunications provider.

Even in the case of such an embodiment, 20 seconds after the call is established, the service provider management server 300 confirms the caller's telephone number and account number by allowing the caller to input a part of the account number for the transfer of the telephone charge without establishing a sale immediately. By establishing a sales approval procedure, a safer sales method can be implemented.

The above-described embodiment is an embodiment of a selling method using a wired telephone, and of course, the selling method in the case of using a wireless telephone instead of the wired telephone using the telephone communication network as a CDMA mobile communication network can also be implemented.

The electronic voucher selling method according to the present invention made as described above, the user does not need to visit the electronic voucher distributor directly, and without the cash or credit card with a high risk of loss, purchase an intangible electronic voucher through a communication network It can be used to achieve both the convenience and safety of electronic commerce to eliminate the obstacle of use, it is a very useful invention that can promote the spread of credit transactions.

Claims (16)

A first step of confirming a sales request of an electronic gift certificate according to a call connection from a telephone wired or wirelessly connected to a telephone communication network; A second step of requesting the call-connected telephone to input necessary data for electronic voucher sales including an electronic voucher purchase amount and a password; A third step of providing data inputted according to the request to the management server of the telephone communication network together with the telephone number of the connected telephone and requesting whether the electronic voucher can be sold to the user; A fourth step of the management server determining the justification of the electronic voucher sale request from the call connection state of the telephone corresponding to the user data received from the electronic voucher issuing server and the telephone number in the data; And In accordance with the determination, the electronic voucher issuance server comprising the fifth step of providing a unique number for the intangible electronic voucher corresponding to the input purchase amount to the telephone connected through the telephone communication network Way. delete The method of claim 1, The fourth step, the electronic voucher selling method characterized in that made according to whether or not the password of the pre-registered user specified from the received telephone number and the received password. The method of claim 1, The password is an electronic voucher selling method, characterized in that part of the user's bank account number is automatically debit registered for payment of the telephone bill to the operator of the telephone communication network. delete The method of claim 1, The fourth step is to check whether the telephone corresponding to the telephone number in the data is currently in communication with the electronic voucher issuing server, and determine whether the electronic voucher sales request is justified from the result and the received user data. An electronic voucher selling method characterized in that. The method of claim 1, The fifth step is a purchase history of the user specified from the received telephone number, further comprising the step of linking and storing the unique number of the electronic voucher and the sales amount of the electronic voucher, the electronic voucher sale, characterized in that Way. The method of claim 7, wherein At the time of storing the electronic voucher amount, if the balance for the electronic voucher previously purchased by the user exists with the unique number of the previously purchased electronic voucher in the purchase history of the user, the balance and the electronic voucher previously purchased by the user And summing the amount and storing the sum together with the unique number of the electronic voucher purchased immediately by the user. The method of claim 7, wherein When storing the electronic voucher amount, if the balance for the electronic voucher previously purchased by the user exists in the purchase history of the user together with the unique number of the previously purchased electronic voucher, the user is immediately preceding the previous purchase history. Electronic voucher selling method characterized in that the amount of the electronic voucher purchased with the unique number of the immediately purchased electronic voucher linked. The method of claim 1, And a sixth step in which the operator of the telecommunication network charges the sales amount along with the telephone fee to the subscriber of the telephone and pays a part of the sales amount to the operator of the electronic gift certificate issuing server. How to Sell Electronic Gift Certificates. The method of claim 1, A seventh step of providing, by the purchaser, the electronic product certificate unique number provided through the telephone communication network to the corresponding merchandise distributor for payment of the purchased merchandise; An eighth step of providing the electronic voucher issuing server with the goods payment approval request data including the unique electronic voucher unique number; A ninth step of determining whether or not to approve payment of the requested price of goods, based on the payment price request data of payment received from the goods seller; And And a tenth step of notifying the seller of the goods whether the payment has been approved or not. A first step of confirming a sales request of an electronic gift certificate according to a call connection from a telephone wired or wirelessly connected to a telephone communication network; A second step of requesting the call-connected telephone to input necessary data for electronic voucher sales including an electronic voucher purchase amount and a password; A third step of determining whether the electronic voucher can be sold to the user from the input data; A fourth step of forming sales information according to the determination and providing the sales information to a management server of the telephone communication network; And The management server of the telephone communication network forms the charging information according to the sales information according to the call connection state of the telephone corresponding to the telephone number in the sales information, and at the same time, according to the determination of the third step, the electronic gift certificate issuing server, And a fifth step of providing a unique number for an intangible electronic gift certificate corresponding to the input purchase amount to a telephone connected through the telephone communication network. If a specific phone number designated for call charges is received, and the call is received for a certain time and the call continues for a predetermined time, the caller of the call generates a unique number of the electronic gift certificate corresponding to the amount requested by the caller, and then through the telephone network. At the same time as the transmission, the sales amount of the electronic voucher is settled from the telephone network operator, and the caller who receives the electronic voucher unique number purchases the goods using the number. The method of claim 13, And after the predetermined time call continues, the caller of the call confirms a part of the number of the direct debit account applied as a payment method of the telephone bill, and then transmits the unique number of the electronic gift certificate. The method of claim 13, The device to which the assigned specific telephone number is assigned performs only a procedure for selling the electronic gift certificate. The method of claim 15, The specific telephone number is an electronic voucher purchase method, characterized in that the number is differently assigned according to the sales amount of the electronic voucher.