KR101182731B1 - Communication system providing real time billing information - Google Patents

Abstract

PURPOSE: A communication system for supplying a real time billing function is provided to set up a communication root for minimizing billing in a voice call between an originator and a receiver. CONSTITUTION: A connection module(110) performs wireless network communication with an originator terminal(50). A call processing module(140) recognizes separate communication routes between the originator terminal and a receiver terminal with reference to a set communication type of the originator terminal. The call processing module combines the communication route corresponding to the least cost. The call processing module performs call connection through the combined communication root. A billing module(150) supplies real time billing information to the originator terminal. [Reference numerals] (110) Connection module; (120) Update module; (130) Installation-download module; (140) Call processing module; (150) Billing module; (170) Community module; (171) Community DB

Description

Communication System Providing Real Time Billing Information

The present invention relates to a call system, and more particularly, to domestic and international calls, to determine the optimal route to minimize the cost incurred, and real-time billing function to notify the user of the cost incurred during the call in real time It provides a call system.

Voice calls are mainly made by mobile terminals such as mobile phones and smart phones. A wireless network for a mobile terminal divides a service area into unit cells, and each cell has a base station to form a wireless communication channel between the cells, thereby providing voice communication and data communication to the user of the mobile terminal. On the other hand, the role of the existing wired network (PSTN) has been reduced as the portable terminal has been spreading, and is being used as a data line for a data communication network, or has become a trend. However, the existing wired network does not require any additional equipment, and since it has been installed underground or on the ground for a long time, when the distance between the sender and the receiver is not long, the cost may be lower than the voice call using the wireless network. By using these advantages, the mobile terminal can make a call connection to one of the wired network and the wireless network by using the dead wired network. Thus, voice communication using the wireless network is more expensive than voice communication using the wired network. It has been proposed to lower the cost cheaply.

When the mobile terminal requests a call connection, the caller can make a voice call through the caller and the wired or wireless network by referring to the call connection information provided through the packet network, thereby reducing the call charge when the caller uses the wired network. Can be. However, this approach can lower call charges only if the caller is using a wired network, and the caller does not have any other means to lower call charges. Therefore, there is a side that cannot be seen as a true cost reduction.

Moreover, the increase in call costs is usually more pronounced when callers and receivers make voice calls longer than necessary, but to date, no system has been proposed to notify users in real time of charges incurred during voice calls.

As a technology for providing free calls according to the prior art, the 'free call service system and method' of Korean Patent Application Publication No. 10-2004-0007033 listens to advertisements when making calls between Internet VoIP networks and between public switched telephone networks (PSTN). The present invention relates to a free call service system and a method for providing a service that allows a user to make a local or foreign call free of charge. This technology has regional limitations in areas where telephone calls are possible, and crosstalk or dropping may occur during a call.

In addition, the 'free call right providing system and method' of Korean Patent Publication No. 10-2006-0094584 provides a free call right in proportion to the amount of goods purchased when searching or internet shopping while running a specific toolbar program. The present invention relates to a system and a method for providing a free call right that allows a free voice call or a text message to be transmitted free of charge. This technology has a drawback that it is not possible to check the usage fee or to check the price change when making a phone call using a free call, and that the usability is reduced due to the application of a collective rate plan.

An object of the present invention is to provide a call system that provides a real-time billing function that can reduce the cost of a call by applying a communication route in which a minimum cost occurs between the sender and the receiver when the caller and the receiver need to make a voice call.

It is another object of the present invention to provide real-time charging information to a mobile terminal with reference to the hourly rate for the communication route that incurs the least cost, or to provide a rate for the communication route to the mobile terminal to generate real-time charging information in the mobile terminal. The present invention provides a call system that provides a real time billing function.

According to the present invention, the call module and the connection module for performing a wireless network communication with the caller portable terminal is installed, the app for the selection of the call method and payment means, with reference to the call method and payment means set in the caller portable terminal; Identify a plurality of individual communication routes capable of transmitting a voice signal from the calling mobile terminal to the receiver terminal, and combine the communication routes with minimum cost by referring to the rates of each of the plurality of individual communication routes and rates by time zone, A call processing module for performing a call connection with the established communication route, and a billing module for generating real-time charging information for the combined communication route and providing it to the caller portable terminal after the caller portable terminal and the receiver terminal are connected to the call. The call processing module includes CDR information on the billing module. The billing module provides a real-time billing function and a real-time billing function for calculating final billing information based on the CDR information.

As described above, the present invention can minimize the costs incurred during the call by setting the communication route to minimize the charge during the voice call between the sender and the receiver, using the hourly rate for the caller or receiver Can recognize real-time charging information.

1 is a conceptual diagram of a call system providing a real-time billing function according to an embodiment of the present invention.
FIG. 2 shows a reference diagram for the processing flow of a call system providing the real time billing function shown in FIG. 1.
3 shows a reference diagram for a charging method using rates, and FIG. 4 shows a reference diagram for setting a communication route.
5 illustrates a reference view of an example of an interface provided in an app of a caller's mobile terminal.

The call detail record (CDR) referred to in the present invention indicates information about when and how a communication requester of the calling mobile terminal requests the called terminal. The CDR may include information such as the time the caller requested the call connection, the time the caller successfully established the call connection, and the talk time. CDRs can be used as billing material and can be recorded or stored in a database or a medium for data storage.

The communication route referred to in the present invention allows the mobile terminal to use a wired network or a form of a wireless network, and is not limited to any one. Communication routes include power lines capable of CDMA networks and WiBro, Wi-Fi, Global System for Mobile communications (GSM), Wideband Code Division Multiple Access (WCDMA), Long Term Evolution (LTE), LTE advancd, Internet, telephone lines, and voice communications. It can be configured around the base station, switching center, radio station, relay station, and server to be used. The communication route may mean a route capable of transmitting mutual voice signals between these base stations, switching centers, radio stations, relay stations, and servers, and there may be costs when using each route. In this case, the cost incurred per unit time (for example, one second) is referred to as a 'rate' later.

The portable terminal referred to in the present invention may refer to a portable terminal having a display device, an input device such as a key or a touch screen, and having a wireless communication function. For example, the portable terminal may be a general mobile phone, a smart phone, a personal digital assistant (PDA), and a notebook. However, any device having a display device, an input device, and a wireless communication function and capable of wireless network connection to a server may be referred to as a portable terminal referred to in the present invention. However, it is not limited.

The receiver terminal referred to in the present invention may be a general landline telephone, a wired or wireless telephone, an Internet phone, and the above-mentioned portable terminal. The receiver terminal refers to a side that accepts a call connection when the portable terminal is requested.

Payment means referred to in the present invention refers to a form that can be paid for using information or services, such as cash, cards, points, coupons, mileage (air mileage). Points or miles can be purchased through cash payment, bank transfer, or card payment, it can be considered to be of the same value as cash in the present invention.

App mentioned in the present invention will be described on the basis of being driven in a normal smartphone as part of a program that is installed and driven in a mobile terminal. However, even if the app is not a smart phone, a mobile terminal using a touch screen can be installed and driven, so the app is installed and driven, and thus the mobile terminal mentioned in the present invention is not limited to a smart phone. This applies equally throughout the invention.

In addition, a call system providing a real-time billing function according to the present invention is described as a 'module' or 'unit' for each component. However, the above-mentioned 'module' or 'unit' is given to the role of each component and can be understood to constitute one server, but each 'module' or 'unit' may be an independent server. Note that it can be implemented.

Hereinafter, the present invention will be described in detail with reference to the drawings.

1 is a conceptual diagram illustrating a call system providing a real time billing function according to an embodiment of the present invention, and FIG. 2 is a call system providing a real time billing function shown in FIG. 1 (hereinafter referred to as a 'call system'). A reference drawing for the processing flow of a is shown.

1 and 2, the call system 100 according to the present embodiment includes a connection module 110, an update module 120, an installation and download module 130, a call processing module 140, and a billing module ( 150, and a database 160, and may include an app 51.

App 51 is a user login (Log-In) means or access means for the first use of the call system providing a real-time billing function according to the present embodiment, the execution of the app 51 is installed in the caller mobile terminal 50 It refers to a service execution of the connection module 110 of the call system 100 or a call system providing a real-time billing function.

The connection module 110 is installed in the caller portable terminal 50 or the call system 100, and is connected to a wireless network through an app 50 capable of selecting a call method and a payment method. The access module 110 is a telecommunication company server (not shown) or a telecommunication company that provides a wired network, a wireless network, a Wi-Fi network, a CDMA network, a WCDMA network, an LTE network, or a GSM network to the caller portable terminal 50. It can be connected to the calling mobile terminal 50 through the base station of.

In addition, the connection module 110 is connected to the community module 170, and transmits and receives and stores user information and local information stored in the community DB 171 to the user or the sender. The community module 170 transmits and receives the blog data of the user stored in the community DB 171 with the access module 110 and provides the user or the sender. In addition, it provides the user or caller with friend data such as user or caller information connected to the caller community module 170, and stores conversation information between the user or caller connected to the community module 170 in the community DB 171. .

Update module 120,

-Check the version of the app (App) to be installed in the caller mobile terminal 50, update the app 51 by providing the latest version of the app 51 to the caller mobile terminal 50,

-Update the user information for the caller mobile terminal (50) user,

-Provide or update rate information for each communication route to the caller's mobile terminal 50, or

-Provide service information and billing system to the sender's mobile terminal 50 to update or

Or provide rate information on the app and the communication route to the caller's mobile terminal 50 through the access module;

-It is possible to notify the calling mobile terminal 50 of the country, region, or communication route providing the free or discounted call.

The update module 120 is provided for updating information, services, or apps 51 required for using the call system according to the present embodiment, and is provided to the caller mobile terminal 50 wirelessly connected through the connection module 110. App provided and installed in the caller portable terminal 50 may update the information or program (or program module) provided in the app 51 by reflecting this.

In addition, the update module 120 implements various Frequently Asked Questions (QrAs), QnAs, and announcements about updates for low-cost voice calls by region or country, in the form of text or a web page, or by using a caller mobile terminal ( 50) may provide data to be represented in the interface displayed on the display device in the app installed on the caller portable terminal 50.

The installation and download module 130 may provide a web source to the caller mobile terminal 50 so that the web page is displayed when the caller mobile terminal connects to the access module 110. Information about the method, payment method, and usage guide is displayed and the user can be selected by the sender mobile terminal 50. In addition, the installation and download module 130 may provide an app (App) to be installed and driven in the mobile terminal 50, the provided app 51 is connected to a call system providing a billing function according to the present invention In order to obtain real-time billing information, select an access method, or select a method of selecting a country to be called.

The call connection method may be any one of callback, toll-free, prefix, and toll-free or voice over internet protocol (VoIP) and mobile VoIP (mVoIP). The payment method may be one of cash payment, prepaid card payment, postpaid card payment, card payment, mileage, flight mileage, virtual account, electronic coupon, electronic wallet point, and point payment. It can be used as a payment means.

Here, the callback call method means that when the app 51 attempts to make a call to the receiver (requested as a packet through the access module 110), the device makes a call to both sides.

There are three ways to call back.

① Calling the caller and the called party (receiver) at the same time from the equipment (call processing module 140)

② The equipment (call processing module 140) walks the caller first and then the caller (the receiver)

③ The equipment (call processing module 140) to the first caller (receiver) and then walk to the caller

There is this.

 The prefix call type represents a representative number service type such as '1588', and the toll free type call number is a number beginning with '080', and the call connection is connected to the server from the caller's mobile terminal, but the call cost is transferred from the server side. The terminal user represents a method of not adding a call cost, and the toll-free method represents a call method having a free phone cost.

The call processing module 140 determines the communication route in which the minimum cost occurs by referring to the call method set in the caller portable terminal 50 and the payment means. The communication route may be composed of one or a combination of two or more routes, and when the sender mobile terminal 50 and the receiver terminal 251 are remotely separated, for example, the caller mobile terminal 50 and the receiver terminal 251. In case of making international call, it may consist of a combination of multiple communication routes rather than a single communication route. When combined in plural, the individual communication routes constituting the entire communication route may incur costs between the base station, switching center, radio station, relay station, and server, and the cost of the individual communication route divided by the unit time (for example, one second). These may be different from each other. When the caller portable terminal 50 connects to the wireless network with the connection module 110, the caller module 140 notifies the telephone number of the receiver terminal 251, so that the call processing module 140 of the caller portable terminal 50 It is possible to select a combination of individual communication routes that incurs the lowest cost among combinations of individual communication routes to the location. If the lowest cost is satisfied even with a single communication route, the call processing module 140 may select one communication route.

The call processing module 140 may provide the caller's mobile terminal 50 with the rate of the communication route determined as the lowest cost (or one or the sum of the rates of the individual communication routes) through the access module 110. The caller mobile terminal 50 may be notified of the sum of the rates for the communication route or the communication route using the installed app 51. The rate is a cost per unit time, so it increases in proportion to the talk time.

The call processing module 140 provides the telephone number of the receiver terminal 251 in the caller portable terminal 50 connected to the wireless network through the access module 110, and then records the data in the database 160 when requesting a call connection. The user information may be referred to and authenticated through the caller's mobile terminal 50 or the app 51. In addition, the authentication may be made by the app 51, by the call processing module 140 to any one or more of the IP of the caller portable terminal 50, the ID or card number or passport number included in the user's payment means. Is possible by In addition, certification

In addition, the call processing module 140 may determine the payment means recorded in the database 160 and the available payment costs for each payment means. If there is no balance in the payment means selected by the sender portable terminal 50, the charging method for the payment means may be requested to the sender portable terminal 50 through the access module 110. In this case, the payment method may be one of cash payment, prepaid card payment, postpaid card payment, card payment, mileage, flight mileage, virtual account, electronic coupon, electronic wallet point, and point payment, the payment of currency costs by mobile payment Can also be used as a payment means.

The call processing module 140 may change the communication route according to the payment method. For example, when the payment method is a prepaid card or a postpaid card, the rate at a particular communication route may be discounted or provided free of charge for a certain time. Therefore, the call processing module 140 should determine whether the payment means for the communication route is lower or higher than the predetermined rate, and may change the communication route according to the determination result. The call processing module 140 may provide the CDR information to the billing module 150 after the caller portable terminal 50 and the receiver terminal 251 request a call connection.

The billing module 150 may charge the caller portable terminal 50 according to the call method set in the caller portable terminal 50 after a call connection is made between the caller portable terminal 50 and the receiver terminal 251. have. When the billing module 150 performs a call connection between the caller mobile terminal 50 and the receiver terminal 251 in the call processing module 140, the billing module 150 stores the CDR information until the call connection is terminated from the call processing module 140. And receiving the final charging information and the real-time charging information based on the CDR information. The final billing information can be obtained by multiplying the talk time by the time ending from the start of the call connection. For example, assuming that there is one communication route, the rate is $ 0.1, and the talk time is 60 seconds, the final billing information may be calculated as 0.1 X 60, that is, $ 6. If the communication route is a combination of a plurality of individual communication routes, the communication time may be multiplied by the rate of each individual communication route.

The real-time billing information may be provided by the billing module 150 and provided to the sender portable terminal 50 or the receiver terminal 251, or may be provided in real time to a terminal (reference code 50 or 251) that spends money. . In this case, the real time may be provided every second (1 second), or 10 seconds, 1 minute period. However, it is not limited.

On the other hand, the real-time billing information billing module 150 provides the rate information to the caller mobile terminal 50 to pay the call costs through the access module 110, the app installed on the caller mobile terminal 50 is the rate and The call time may be multiplied and displayed on the display device.

In addition, the billing module 150 may generate billing information using two or more plans. For example, when a free call remains in the mobile terminal 50, the mobile phone 50 is processed as a mobile phone bill during the time when the free call is exhausted, and then charging information according to another cheap call method may be used. The billing module 150 may support the user of the mobile terminal 50 to make a voice call with a minimum call cost.

The database 160 may include billing information, rate information for each region, rate information for each country, rate information for each payment method, and rate information for each payment plan of the caller's mobile terminal 50. In addition, CDR information transmitted between the billing module 150 and the call processing module 140 may be recorded.

3 shows a reference diagram for a charging method using rates, and FIG. 4 shows a reference diagram for setting a communication route.

First, referring to FIG. 3, when the caller portable terminal 50 and the receiver terminal 251 make a call connection, three communication routes are used, and the rate of the first communication route is A and the rate of the second communication route. Assuming that B, the rate of the third communication route is C, and the rate of the fourth communication route is D, the cost incurred in the first, communication route is the multiplication of talk time (t1) and rate A, and the second The cost incurred in the communication route is multiplied by talk time t2 and rate B. Third, the cost incurred in the communication route is multiplied by talk time t3 and rate C. The cost incurred is the multiplication of the talk time (t4) and the rate D, the value multiplied by the first communication route + the value multiplied by the second communication route + the value multiplied by the third communication route + the fourth communication route The sum of these values adds up to the cost of the call do. At this time, t1, t2, t3, t4 may be the same time value.

Next, referring to FIG. 4, the rate of each individual communication route R1-R8 is, respectively, per second R1: 1 won, R2: 2 won R3: 3 won R4: 1 won R5: 2 won R6: 9 won Assuming that R7 is 5 won and R8 is 4 won,

If you set R1, R2, R3, R6 as the communication route, 1 + 2 + 3 + 9 = 15 won,

If R1, R2, R4, R7, and R8 are set as the communication route, it can be seen that 1 + 2 + 1 + 5 + 4 = 13 won. Since the call time of the caller portable terminal 50 can be shared in all communication routes, it can be seen that the cost in the communication route consisting of R1, R2, R4, R7, and R8 is minimal even if the number of communication routes increases. However, the minimum cost communication route may be different when the cost of R6 is temporarily reduced or a free call event exists at the side providing the communication service to the communication route of R6. For example, assuming that the cost of the R6 communication route is less than 7 won by the event, or that it provides a free call for a period of time (eg 30 minutes), the least cost communication route may be a combination of R1, R2, R3, R6. .

Also, if you provide a free call for a period of time (e.g. 30 minutes), the communication route based on the minimum cost is R1, R2, R3, R6 for the first 30 minutes of voice calls, and R1, R2, R4 for the 30 minutes later. , R7, and R8.

5 and 6 illustrate a reference view of an example of an interface provided in an app of the caller portable terminal 50.

Referring to FIG. 5, the interface of the app displays an icon 51 for selecting a country on the display device, and when the user of the caller's mobile terminal 50 selects the icon 51, as shown in FIG. 6. By displaying the star name and flag on the display, the country code can be selected without memorizing the country code.

On the other hand, the user of the mobile terminal 50 may directly input the country code by inputting the country code using the touch screen or keypad provided by the mobile terminal 50. The country code may be selected by displaying an interface for country code selection on the mobile terminal 50 or by pressing and holding a numeric key or a special character key on a touch screen or a keypad. For example, when the numeric key "0" is pressed for a few seconds (for example, 2 seconds) or longer, a menu for selecting a country code is displayed on the screen of the mobile terminal 50, or when the special character key (#) is pressed for several seconds or longer. A menu for selecting a code may be displayed on the screen of the mobile terminal 50. However, it is not limited. Subsequently, after the country code is selected by the mobile terminal 50, a menu for selecting a payment plan may be displayed on the screen of the mobile terminal 50, and thereafter, a personal information editing, a call service subscription country, and the mobile terminal 50. Menus such as personal address book of the user, USIM change, and terminal change may be additionally displayed.

Normally, the country code is selected to be inputted to the front end of the telephone number of the receiver terminal 251 in the calling mobile terminal 50, but there is a limit in memorizing and using country codes for many countries. It may take a long time to cause an error in the input. However, the app provides an icon 51 for selecting a country code on the display device so that the country code can be automatically input, and the inconvenience of the country code input can be eliminated.

Reference numeral 52 is a display menu for displaying the remaining costs or prepaid fee points of the payment means, which may be displayed in the form of real-time billing information or before the call connection is made by the call processing module 150. Reference numeral 53 is provided for charging the payment method cost of the user of the sender's mobile terminal 50 when the remaining cost is exhausted through the display menu 62, and reference numeral 54 is previously selected by the user of the sender's mobile terminal 50. The image corresponding to the country code is shown.

Although not shown in the drawing, an interface of the app may include a menu for displaying real-time multiplication values for call time and rate information, which is a cost per call, and may play a voice message at a predetermined reference time with reference to real-time billing information. have. This is to prevent excessive call charges caused by the call between the sender portable terminal 50 and the receiver terminal 251, it may be represented by using vibration in addition to the voice message.

FIG. 6 illustrates a reference view of another example of an interface provided in an app of the calling mobile terminal 50.

Referring to FIG. 6, after the country code is selected in the mobile terminal 50, the interface of the app may display a user selectable connection method on the display device of the mobile terminal 50.

In the illustrated interface, reference numeral “55” denotes a connection method selection menu. The connection method is a mobile phone connection method in which charges are incurred for the remainder of the free call time, a 080 connection method for free calls, and 00X (for example, 005). Starting number) access method, toll-free callback method, and mVOIP method available in mobile network environment. A brief description of the fee calculation method may be added to one side of each access method, and a user selectable check menu 56 may be added to each access method.

110: connection module 120: update module
130: web service module 140: call processing module
150: billing module 160: database
170: community module 171: community DB

Claims (23)

A connection module for performing wireless network communication with the caller's mobile terminal in which an app for selecting a call method and a payment method is installed;
Identifying a plurality of individual communication routes capable of transmitting a voice signal from the sender mobile terminal to the receiver terminal with reference to the call method and payment means set in the caller portable terminal, and rates of each of the plurality of individual communication routes and rates for each time slot. A call processing module for combining a communication route having a minimum cost with reference to and performing a call connection with the combined communication route; And
And a billing module for generating real-time billing information for the combined communication route and providing it to the caller portable terminal after the caller portable terminal and the receiver terminal are connected.
The call processing module provides CDR (Call Detail Record) information to the billing module, and the billing module provides a real-time billing function, characterized in that to calculate the real-time billing information, and the final billing information based on the CDR information. Currency system. delete delete The method of claim 1,
The billing module,
And multiplying the usage time by the rate for each of the individual communication routes, and adding the cost information of each individual communication route to calculate the total call cost. The method of claim 1,
The call method,
Call system providing a real-time billing function, characterized in that any one or more of the callback (Callback), toll-free (Prefix), toll free call method or Internet call (VoIP, mVoIP). The method of claim 1,
The communication route is,
Call system providing a real-time billing function, characterized in that the communication network using any one or more of a wired network, wireless network, mobile communication network, Wi-Fi or WiBro. The method of claim 1,
The payment means,
Call system that provides real-time billing function, characterized in that any one or more of cash payment, card payment, point payment, mileage, flight mileage, virtual account, electronic coupon or electronic wallet points. The method of claim 1,
The real time charging information,
When the caller mobile terminal app provides the hourly rate for the communication route in the billing module, the call system providing a real-time billing function, characterized in that to multiply the call time of the caller mobile terminal in real time. The method of claim 1,
And an update module for providing any one of the rate information for the app and the communication route to the caller's mobile terminal through the access module. 10. The method of claim 9,
The update module,
Calling system providing a real-time billing function, characterized in that for checking the version of the app, when the app installed in the caller portable terminal is connected through the access module. 10. The method of claim 9,
The update module,
When the communication route via a foreign country, the call system providing a real-time billing function characterized in that it provides the caller portable terminal with information about the rate between countries billed per hour through the access module. The method of claim 1,
And a database including information on billing information before call access, rate information by region, rate information by country, rate information by payment method, and user information for the caller's mobile terminal.
The call processing module,
Real time billing characterized in that when the caller mobile terminal requests a call connection to the receiver terminal through the access module, the caller mobile terminal is authenticated with reference to the database and the availability of the payment means of the caller mobile terminal is determined. Call system that provides functionality. The method of claim 12,
The call processing module,
When the payment means of the caller portable terminal is not available, the call system for providing a real-time billing function, characterized in that for requesting the charging of the payment means to the caller portable terminal through the access module. The method of claim 1,
And a web service module configured to provide a web page including information on the call method, the payment means, and the usage guide, to the caller portable terminal when the caller portable terminal wirelessly accesses the access module. Call system that provides real-time billing function. The method of claim 1,
The receiver terminal,
Call system providing a real-time billing function, characterized in that any one of a mobile terminal for performing wireless communication, and a landline telephone. 10. The method of claim 9,
The update module,
The call system for providing real-time billing information, characterized in that to provide the caller mobile terminal with local information providing an event for the call cost through the access module. The method of claim 1,
The app,
And displaying an icon for a country where the receiver terminal is located on a display device of the portable terminal, and automatically inputting a country code assigned to a user-selected icon. 18. The method of claim 17,
The app,
Call system for providing real-time billing information, characterized in that to display the rate information that is the cost per call time on one side of the icon on the display device. 18. The method of claim 17,
The app,
Call system for providing real-time billing information, characterized in that to display a selection menu for the call quality on one side of the display device. 18. The method of claim 17,
The app,
Call system for providing real-time billing information, characterized in that the display of the rate information and the multiplication value for the call time in real time on one side of the display device. 18. The method of claim 17,
The app,
Call system for providing real-time billing information, characterized in that for playing a voice message at a predetermined reference time with reference to the real-time billing information. The method of claim 1,
The call processing module,
And a route having the smallest predetermined hourly cost as the communication route with reference to rate information which is a cost per call time, a location of the receiver terminal, and the payment means. The method of claim 1,
The billing module,
Call system for providing real-time billing information, characterized in that the billing information is generated according to a plurality of plans according to the combination of two or more plans.

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