KR100359191B1 - Public telephone having drawing out cash function - Google Patents

Abstract

The present invention accesses a financial server through a communication network connected to a public telephone, performs a password verification operation on a credit card inserted by a user, and according to the result, the amount of cash requested by the user is stored from a pre-stored bill storage cassette. By discharging, the present invention relates to a public telephone having a cash withdrawal function that enables a user to withdraw cash easily.

A feature of the present invention is that after accessing a financial server through a telephone network or a communication network or a wireless data modem connected to a public telephone, the amount of money input by the user through the touch screen of the public telephone according to the availability of the inserted card and the transaction authentication result. By paying the cash requested by the user through the cash dispenser as much as the information, it is possible to operate the cash service function through the public telephone without separately configuring a payphone and a cash dispenser.

The present invention has the advantage that the user can conveniently receive a cash service by adding a cash withdrawal function to a public telephone installed in an unspecified area.

Description

PUBLIC TELEPHONE HAVING DRAWING OUT CASH FUNCTION}

The present invention relates to a public telephone having a cash withdrawal function, and more particularly, accesses a financial server through a telephone network or a communication network connected to a public telephone and performs a password verification operation for a credit card inserted by a user. According to the present invention relates to a public telephone having a cash withdrawal function that allows the user to easily withdraw cash by discharging as much cash from the pre-stored bill storage cassette requested by the user.

In addition, the present invention relates to a public telephone having a cash withdrawal function that allows the operator to operate the cash withdrawal function using an inexpensive telephone network or a communication network instead of an expensive dedicated line.

The most representative device of the communication means is a telephone. Telephones can be divided into home telephones, corporate key phones, and public telephones that can be used by ordinary users. In recent years, telephones have emerged from the conventional telephone functions as simple telephone equipment, and more efficient and convenient functions using a microprocessor have been added to the telephones. Of these, public telephones are installed for general users by telephone service companies, and have been limited to general call functions.

On the other hand, the general banking service does not fully satisfy the customer's service needs because the customer service is performed only within a certain time (for example, 09:30 ~ 16:30). In order to solve this problem, some banks are operating a 24-hour cash in / out machine in a bank building or other buildings, thereby competing for the opening of the financial market. However, since the system is designed and built around a simple cash payment function, the quality of the service is considerably low in terms of a 24-hour bank.

In addition, although convenience stores, which are open 24 hours a day, are equipped with cash service devices (CDs, ATMs, etc.) provided by financial service providers, the installation place of such devices is limited, so that the user can secure the installation place of the device. Is not so easy.

In addition, the cash service device (CD, ATM, etc.) is connected to the financial server by using a dedicated line, and when the user inquires whether or not the credit card inserted by the user can be used, the state of being connected to the financial server through the dedicated line is maintained. Should be.

However, according to such a conventional cash service device, the following problem (s) occur.

That is, as the cash service device is limited to a specific place, the user has to invest a lot of time and effort to find a place where the cash service device is installed, and feels inconvenient.

Since the cash service equipment is connected to the financial server through a leased line, the charge for using the leased line is very expensive. Therefore, the operator operating the cash service machine feels an economic burden.

Accordingly, the present invention is to solve such a problem (s), the object of the present invention is to add a cash withdrawal function to a public telephone installed in an unspecified area, a cash withdrawal function that allows the user to conveniently receive a cash service In providing a public telephone having a.

In addition, another object of the present invention is to provide a public telephone having a cash withdrawal function that allows the operator to operate a public telephone having a cash service function at a low price.

1 is a perspective view showing the appearance of a public telephone having a cash withdrawal function applied to the present invention,

2 is a schematic internal block diagram of a public telephone having a cash withdrawal function according to a first embodiment of the present invention;

3 is an operation flowchart of the central processing unit shown in FIG.

4 is an operation flowchart of the control unit shown in FIG.

5 is a schematic internal block diagram of a payphone having a cash withdrawal function according to a second embodiment of the present invention;

6 is a schematic internal block diagram of a payphone having a cash withdrawal function according to a third embodiment of the present invention.

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

100: public telephone 101: touch screen

102: liquid crystal display panel 103: card slot

104: handset 105: hook

106: central processing unit 107: printer

108: card reader 109: interface unit

110: call circuit 111: telephone network (PSTN)

112: memory 113: telephone network control unit

114: modem 115: communication network (ISDN or ADSL)

116: communication network control unit 117: wireless data modem

118: antenna 200: cash dispenser

201: banknote outlet 202: control unit

203: Banknote storage cassette 204: Banknote counter

A feature of the present invention for achieving such an object (s) includes: an input unit for selecting a cash service function or a general telephone function and inputting information necessary to perform a cash service function; A display unit for displaying a variety of information including current operating state information of a public telephone; A printer for printing and outputting cash service result information requested by a user; A card reader which reads out necessary information from the card put into the public telephone and calculates the amount of money charged to the card according to the use of the public purifier; A call circuit for performing a call function of the public telephone and including at least a call controller, a DTMF signal generator, a modulator / demodulator, and a line matcher; An interface unit for interfacing the card reader with the input / output states of the call circuit; A memory for storing various data including various program data to be executed by the public telephone; A telephone network controller for interfacing the call circuit with a telephone network; Control the overall operation of the public telephone by communicating with the interface unit according to a predetermined protocol, and control the interface unit as the user selects a cash service function to connect the public telephone to the financial server, and the card Detects the card information inserted by the user through the reader and transmits it to the financial server, and in response to the response signal from the financial server, determines whether the card can be used by receiving the card availability result information from the interface unit. A central processing unit outputting the withdrawal amount information input by the user to the controller; A control unit for communicating with the central processing unit, controlling the banknote counter by the withdrawal amount transferred from the central processing unit to count the banknotes pre-loaded in the banknote stacking cassette, and then to discharge the banknotes; At least one bill storage cassette on which the bill is loaded; And a bill counting unit for picking up and counting the bills loaded in the at least one bill storage cassette under the control of the controller and then ejecting the counted bills.

Here, it is preferable that banknotes of different unit amounts of money are stacked in each of the at least one banknote stacking cassette.

In this case, it is preferable that the unit amount includes unit amounts of 10,000 won, 5000 won, and 1000 won.

On the other hand, another feature of the present invention, the input unit for inputting the information required to perform the cash service function or the selection and the cash service function of the general telephone function; A display unit for displaying a variety of information including current operating state information of a public telephone; A printer for printing and outputting cash service result information requested by a user; A card reader which reads out necessary information from the card put into the public telephone and calculates the amount of money charged to the card according to the use of the public purifier; A call circuit for performing a call function of the public telephone and including at least a call controller, a DTMF signal generator, a modulator / demodulator, and a line matcher; An interface unit for interfacing the card reader with the input / output states of the call circuit; A memory for storing various data including various program data to be executed by the public telephone; A modem for modulating and demodulating various types of information to be transmitted / received from the public telephone through a communication network and controlling a transmission / reception state of various kinds of information; A communication network controller for interfacing the modem with the communication network; A telephone network controller for interfacing the call circuit with a telephone network; Control the overall operation of the public telephone by communicating with the interface unit and the modem according to a predetermined protocol, and control the interface unit as the user selects a cash service function to connect the public telephone to the financial server; After detecting the information of the card inserted by the user through the card reader, and transmits the information to the financial server, in response to the response signal from the financial server can receive the use information of the card from the interface unit for use A central processing unit for outputting the withdrawal amount information input by the user to the control unit, if determined to be a card; A control unit for communicating with the central processing unit, controlling the banknote counter by the withdrawal amount transferred from the central processing unit to count the banknotes pre-loaded in the banknote stacking cassette, and then to discharge the banknotes; At least one bill storage cassette on which the bill is loaded; And a bill counting unit for picking up and counting the bills loaded in the at least one bill storage cassette under the control of the controller and then ejecting the counted bills.

In addition, another feature of the present invention, the input unit for inputting the information necessary for the selection and cash withdrawal of the cash service or general telephone function; A display unit for displaying various types of information including a current operating state of a public telephone; A printer for outputting cash service result information requested by a user; A card reader for reading a variety of information from a card inserted into a payphone and calculating the amount of money charged to the card according to the usage of the payphone; A call circuit for performing a call function of the public telephone and including a call controller, a DTMF signal generator, a modulator / demodulator, and a line matching unit; A memory for storing various data including various program data to be executed by the public telephone; Wireless data which modulates and demodulates the voice signal to be transmitted / received from the public telephone through the antenna and various information from the card information and the financial server into wireless data and simultaneously controls the transmission / reception status of various information through the antenna. modem; Controlling the operation of the public telephone by communicating with the wireless data modem according to a predetermined protocol; controlling the wireless data modem according to a user's selection of a cash service function; and connecting the public telephone to a financial server. A central processing unit which detects the information of the card inserted by the user and transmits the information to the financial server, and controls the cash dispenser in response to the response from the financial server; A control unit for communicating with the central processing unit, controlling the banknote counter by the withdrawal amount transferred from the central processing unit to count the banknotes pre-loaded in the banknote stacking cassette, and then to discharge the banknotes; At least one bill storage cassette on which the bill is loaded; And a bill counting unit for picking up and counting the bills loaded in the at least one bill storage cassette under the control of the controller and then ejecting the counted bills.

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 shown in 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.

Figure 1 is a perspective view showing the appearance of a public telephone having a cash withdrawal function applied to the present invention, Figure 2 is a schematic internal block diagram of a public telephone having a cash withdrawal function according to a first embodiment of the present invention 3 is an operation flowchart of the central processing unit shown in FIG. 2, an operation flowchart of the control unit shown in FIG. 2 is shown in FIG. 2, and FIG. 5 is a second embodiment of the present invention. A schematic internal block diagram of a public telephone having a cash withdrawal function is shown, and FIG. 6 is a schematic internal block diagram of a public telephone having a cash withdrawal function according to a third embodiment of the present invention.

<1st Example of this invention>

First, referring to FIG. 1 and FIG. 2, the configuration of the first embodiment of the present invention will be described. A touch screen 101 and a display function for performing an input function are performed on the front of the main body of the public telephone 100. FIG. A liquid crystal display panel (LCD panel) 102 is installed integrally, and a card inlet 103 for inserting a card (a public telephone card, a credit card, etc.) is installed at a lower portion thereof, and a public telephone 100 is provided. On the side of the receiver / handset 104 is installed to be locked by the hook 105.

In addition, a cash dispensing device 200 for performing a cash service function is installed at the lower end of the card inlet 103, a bill discharge port 201 for discharging bills is formed at a predetermined position of the cash dispensing device 200. do.

Meanwhile, referring to FIG. 2, the internal configuration of the public telephone 100 will be described. The central processing unit 106 generally controls each component of the public telephone 100 according to a predetermined program. In particular, the central processing unit 106 determines whether or not the corresponding card inserted by the user can be used by accessing the financial server through a public switched telephone network (PSTN), and the control unit 202 in the cash dispensing device 200. ) And transmits the amount of money requested by the user to the control unit 202 while communicating in a serial communication method.

The touch screen 101 determines the input state selected by various operations of the user, and transmits the result to the central processing unit 106.

The liquid crystal display panel 102 displays various display states in a state where the public telephone 100 is currently operating, and various guide phrases and advertisement phrases may be displayed as necessary.

The printer 107 prints the information related to the cash service on the receipt under the control of the central processing unit 106 and discharges it. Here, the printer 107 preferably uses a small thermal printer or a dot printer in consideration of the standard of the public telephone 100.

The card reader 108 checks whether a card (credit card, public phone card, etc.) inserted into the public telephone 100 can be used, and calculates the amount of money charged to the card according to the usage of the public telephone 100 or the financial server. The information is detected so that the usage amount information can be sent to the user so that the user can claim the amount later.

The interface unit 109 communicates with the central processing unit 106 according to a predetermined protocol, and interfaces the control of various operations of the card reader 108 and the call circuit 110 and the input / output states of various data. That is, the interface unit 109 determines whether the card is a usable card according to the information of the card information detected by the card reader 108, and if it is determined that the card is usable, sends the determination result to the central processing unit 106. To make a call. In addition, the interface unit 109 controls the balance information stored in the card inserted into the card reader 108 as much as the use amount, and performs various operations related to the card such as recording a new amount. The interface unit 109 controls the loop on / off state of the telephone network 111 through the call circuit 110 and controls the DTMF generator in the call circuit 110 to generate a DTMF signal corresponding to the telephone number. .

The memory 112 stores various program data to be executed by the central processing unit 106, and stores various guide phrase information to be displayed through the liquid crystal display panel 102.

The call circuit 110 includes a call control unit, a dual tone multi frequency (DTMF) signal generator, a modulation / demodulation unit, a line matching unit, etc. to perform a call function of a general public telephone 100.

The telephone network controller 113 interfaces the communication between the public telephone 100 and the telephone network 111.

The handset 104 collects a user's voice into a microphone and provides it to the call circuit 110 and outputs the voice signal of the other party received through the telephone network 111 to the speaker so that the user can identify it.

On the other hand, looking at the configuration of the cash dispensing device 200, the control unit 202 is connected to the central processing unit 106 of the public telephone 100 by an RS-232C communication cable to communicate commands and control signals and data in a serial communication method Communicating with each other, and overall control the cash dispensing device (200).

The bill storage cassette 203 is composed of a plurality of cassettes which are divided by unit amounts (1000 won, 5000 won, 10000 won, etc.) so that a plurality of bills for each unit amount are stacked, respectively, under the control of the controller 202. The bills are transferred to the bill counter 204.

The banknote counter 204 counts the banknotes loaded in the banknote storage cassette 203 by the amount requested by the user under the control of the controller 202 and then discharges the banknotes to the outside through the banknote outlet 201.

Referring to Figures 3 and 4 with respect to the operation of the present invention having such a configuration as follows.

First, when the operation of the central processing unit 106 configured in the public telephone 100 is described, the central processing unit 106 first determines whether a card is inserted into the card slot 103 of the public telephone 100 (S101). ). Here, the central processing unit 106 maintains the public telephone 100 in the standby mode when the card is not inserted. Then, when it is detected that the card is inserted into the card slot 103 of the public telephone 100, the central processing unit 106 detects the menu information stored in the memory 112 to detect the menu items on the liquid crystal display panel 102 After displaying (S103), it is determined whether the cash service function is selected among various items of the menu (S104). If it is determined in step S104 that the cash service function is not selected, the central processing unit 106 controls so that the public telephone 100 can perform a general telephone function (S105).

If it is determined in step S104 that the cash service function is selected, the central processing unit 106 communicates with the interface unit 109 to request the opening of the call circuit 110. The call circuit 110 controls the telephone network control unit 113 to open a public switched telephone network (PSTN) 104. Accordingly, the public telephone 100 is connected to the financial server (S106).

Thereafter, the central processing unit 106 requests the interface unit 109 to determine whether the card can be used. The interface unit 109 detects the card information recorded on the card through the card reader 108, and then transmits the detected card information to the financial server through the communication circuit 110, and transmits an inquiry result from the financial server. Wait until

Thereafter, when the inquiry result is received from the financial server in the interface unit 109, the interface unit 109 transmits the result of whether the corresponding card is available to the central processing unit 106. Accordingly, the central processing unit 106 determines whether the card can be used (S107). Here, if it is determined that the card is unavailable (S108), the central processing unit 106 displays a guide letter indicating that the card is not available on the liquid crystal display panel 102 (S109), the standby mode Switch (S102).

If it is determined in step S108 that the card is an available card, the central processing unit 106 opens a withdrawal amount input window on the liquid crystal display panel 102 so that the user can input the amount of information to be withdrawn. It is displayed (S110).

The central processing unit 106 checks whether the input of the amount to be withdrawn by the user is completed through the touch screen 101 (S111). If the input is completed, the central processing unit 106 controls the inputted amount information in the cash dispensing apparatus 200. 202 and the financial server (S112).

Thereafter, the central processing unit 106 checks whether the payment of the corresponding amount requested by the user is completed through the cash dispensing apparatus 200 (S113), and when the payment of the corresponding amount is completed, the printer 107 controls the corresponding payment. Output the receipt for the amount (S114), after discharging the corresponding card input by the user (S115), and switches to the initial state. At this time, the financial server registers the cash service withdrawal in the amount requested by the user of the card. Accordingly, in the financial sector, the payment amount can be charged to the user later.

Meanwhile, referring to FIG. 4, the operation of the controller 202 configured in the cash dispensing apparatus 200 will be described. The controller 202 checks whether a cash withdrawal request has been received from the central processing unit 106 (S116). If the cash withdrawal request has not been received, the process enters the standby mode (S117).

If the cash withdrawal request is received from the central processing unit 106, the control unit 202 receives the amount of money information from the central processing unit 106 (S118), and controls the bill counter 204 to request the user The bills loaded in the bill storage cassette 203 are picked up and counted by the corresponding amount (S119). Here, since the bill storage cassette 203 loads 10,000 won, 5000 won, and 1000 won, respectively, the bill counting unit 204 selects a cassette of a suitable unit in response to the amount of money information requested by the user. Pick up and count 10000 won, 5000 won, and 1000 won bills for the amount.

Thereafter, the control unit 202 discharges the corresponding banknote counted through the banknote counter 204 to the banknote outlet 201 (S120). Here, the bill counter 204 preferably includes a pickup section for picking up bills from the bill storage cassette 203, and a loading section for ejecting the counted bills to the bill outlet 201.

When payment of the bill is completed through this process, the control unit 202 transmits the payment completion signal to the central processing unit 106 (S121), and switches to the initial state.

On the other hand, the process of requesting the user to enter a password during the process of verifying the above card information, it is obvious that the operation of transmitting the password entered by the user to the financial server to verify this is essential.

<2nd Example of this invention>

A second embodiment of the present invention will be described with reference to FIG. Here, among the components shown in FIG. 5, the same reference numerals are given to the same components as those of FIG. 2, and description thereof will be omitted.

Referring to FIG. 5, all the components of FIG. 2 are included, and a modem 114, an integrated service digital network (ISDN) or an asymmetric digital subscriber line (ADSL) 115, and a network controller 116 are added. . This is the connection with the financial server is made through the communication network 115, the telephone network 111 represents a state dedicated only for the telephone function.

That is, when the modem 114 accesses the financial server from the public telephone 100 through the communication network 115, the modem 114 modulates the card information input by the user into a digital signal and uses the card received through the communication network 115. Perform demodulation such as error correction on the availability information and other information.

The communication network controller 116 interfaces the modem 114 and the communication network 115.

According to this configuration, the overall operation for the cash withdrawal function is the same as the first embodiment of the present invention. However, the difference is that the transmission / reception of various information applied to the cash withdrawal function such as the connection with the financial server and the transmission / reception of the card information is performed through the communication network 115. In this case, although the price is higher than the case using the telephone network 111, the call function is always maintained, it is an advantage that can maintain the connection state with the financial server.

Therefore, the user can receive a cash service using a public telephone.

<3rd Example of this invention>

A third embodiment of the present invention is characterized by a configuration in which a wireless data modem is provided for connection to a financial server and a call function of a public telephone. This replaces the roles of the interface unit 109 of the first embodiment, the communication network control unit 116 and the interface unit 109 of the second embodiment, and uses the wireless data modem even while using a vehicle, such as an aircraft or a ship. By allowing the user to receive a call service and a cash service by connecting to a financial server and simultaneously performing a call function.

That is, as shown in Figure 6, when the wireless data modem 117 is connected to the financial server from the public telephone 100 through the antenna 118, the card information input by the user to modulate the digital signal, the antenna The demodulation operation such as error correction is performed on the availability information and other information of the card received through (118). In addition, the wireless data modem 117 modulates / demodulates voice data so that a user can perform a call function.

According to this configuration, both the call function and the cash withdrawal function are made through the call circuit 110 and the wireless data modem 117. That is, the voice data modulated through the wireless data modem 117 and information of the card are transmitted through the antenna 118 and transmitted to the wireless base station and the financial server, and the voice signal and response data transmitted from the wireless base station and the financial server. Received to the wireless data modem 117 through the antenna 118, after being demodulated and delivered to the interface unit 109 and the card reader 108, it is possible to operate the normal call function and cash service function. In this case, the price is higher than when using the telephone network 111 or the communication network 115, but the cash service function can be operated even in an area where the communication network 115 or the telephone network 111 such as ships or airlines cannot be used. It is very efficient at.

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 public telephone having the cash withdrawal function according to the present invention the following advantage (s) occurs.

That is, by adding a cash withdrawal function to a public telephone installed in an unspecified area, a user can conveniently receive a cash service.

In addition, by performing a cash service function using a general telephone network instead of a dedicated line, the operator can operate a public telephone having a cash service function at a low price.

In addition, by using the wireless data modem to perform a call function and a cash service function, it is possible to receive a cash service even in a moving vehicle such as a ship or aircraft.

Claims (5)

An input unit which selects a cash service function or a general telephone function and inputs information necessary to perform a cash service function; A display unit for displaying a variety of information including current operating state information of a public telephone; A printer for printing and outputting cash service result information requested by a user; A card reader which reads out necessary information from the card put into the public telephone and calculates the amount of money charged to the card according to the use of the public purifier; A call circuit for performing a call function of the public telephone and including at least a call controller, a DTMF signal generator, a modulator / demodulator, and a line matcher; An interface unit for interfacing the card reader with the input / output states of the call circuit; A memory for storing various data including various program data to be executed by the public telephone; A telephone network controller for interfacing the call circuit with a telephone network; Control the overall operation of the public telephone by communicating with the interface unit according to a predetermined protocol, and control the interface unit as the user selects a cash service function to connect the public telephone to the financial server, and the card Detects the card information inserted by the user through the reader and transmits it to the financial server, and in response to the response signal from the financial server, determines whether the card can be used by receiving the card availability result information from the interface unit. A central processing unit outputting the withdrawal amount information input by the user to the controller; A control unit for communicating with the central processing unit, controlling the banknote counter by the withdrawal amount transferred from the central processing unit to count the banknotes pre-loaded in the banknote stacking cassette, and then to discharge the banknotes; At least one bill storage cassette on which the bill is loaded; And And a bill counting unit for picking up and counting the bills loaded in the at least one bill storage cassette under the control of the controller, and discharging the counted bills. The method of claim 1, A public telephone having a cash withdrawal function, characterized in that banknotes of different unit amounts are stacked in each of the at least one bill stack cassette. The method of claim 2, wherein the unit amount of money, A public telephone having a cash withdrawal function, comprising a unit amount of 10,000 won and 5000 won and 1000 won. An input unit which selects a cash service function or a general telephone function and inputs information necessary to perform a cash service function; A display unit for displaying a variety of information including current operating state information of a public telephone; A printer for printing and outputting cash service result information requested by a user; A card reader which reads out necessary information from the card put into the public telephone and calculates the amount of money charged to the card according to the use of the public purifier; A call circuit for performing a call function of the public telephone and including at least a call controller, a DTMF signal generator, a modulator / demodulator, and a line matcher; An interface unit for interfacing the card reader with the input / output states of the call circuit; A memory for storing various data including various program data to be executed by the public telephone; A modem for modulating and demodulating various types of information to be transmitted / received from the public telephone through a communication network and controlling a transmission / reception state of various kinds of information; A communication network controller for interfacing the modem with the communication network; A telephone network controller for interfacing the call circuit with a telephone network; Control the overall operation of the public telephone by communicating with the interface unit and the modem according to a predetermined protocol, and control the interface unit as the user selects a cash service function to connect the public telephone to the financial server; After detecting the information of the card inserted by the user through the card reader, and transmits the information to the financial server, in response to the response signal from the financial server can receive the use information of the card from the interface unit for use A central processing unit for outputting the withdrawal amount information input by the user to the control unit, if determined to be a card; A control unit for communicating with the central processing unit, controlling the banknote counter by the withdrawal amount transferred from the central processing unit to count the banknotes pre-loaded in the banknote stacking cassette, and then to discharge the banknotes; At least one bill storage cassette on which the bill is loaded; And And a bill counting unit for picking up and counting the bills loaded in the at least one bill storage cassette under the control of the controller, and discharging the counted bills. An input unit for inputting information necessary for selecting a cash service function or a general telephone function and withdrawing cash; A display unit for displaying various types of information including a current operating state of a public telephone; A printer for outputting cash service result information requested by a user; A card reader for reading a variety of information from a card inserted into a payphone and calculating the amount of money charged to the card according to the usage of the payphone; A call circuit for performing a call function of the public telephone and including a call controller, a DTMF signal generator, a modulator / demodulator, and a line matching unit; A memory for storing various data including various program data to be executed by the public telephone; Wireless data which modulates and demodulates the voice signal to be transmitted / received from the public telephone through the antenna and various information from the card information and the financial server into wireless data and simultaneously controls the transmission / reception status of various information through the antenna. modem; Controlling the operation of the public telephone by communicating with the wireless data modem according to a predetermined protocol; controlling the wireless data modem according to a user's selection of a cash service function; and connecting the public telephone to a financial server. A central processing unit which detects the information of the card inserted by the user and transmits the information to the financial server, and controls the cash dispenser in response to the response from the financial server; A control unit for communicating with the central processing unit, controlling the banknote counter by the withdrawal amount transferred from the central processing unit to count the banknotes pre-loaded in the banknote stacking cassette, and then to discharge the banknotes; At least one bill storage cassette on which the bill is loaded; And And a bill counting unit for picking up and counting the bills loaded in the at least one bill storage cassette under the control of the controller, and discharging the counted bills.