KR101218843B1 - System for controlling call setup and method for the same - Google Patents

Abstract

The present invention relates to a call connection establishment control system and a method for controlling call connection establishment, comprising: a call connection establishment control system configured to establish a call connection only when a call connection request from a calling terminal to a called terminal is included in a call permission list; A method for controlling call connection establishment. Call setting control system according to an embodiment of the present invention, the originating number database for storing the calling number and the license number corresponding to the calling number; An exchange receiving a call connection request for the called terminal from the calling terminal through the base station and inquiring whether a call can be established; And a service control device (SCP) which determines whether a call can be set up from the calling terminal to the called terminal by searching the calling permission database using the calling number of the calling terminal in response to an inquiry from the exchange. And the exchange is configured such that a call from the originating terminal to the called terminal is set when the service control device determines that the call setting from the originating terminal to the called terminal is possible.

Communication terminal, call setup, origination, control

Description

{SYSTEM FOR CONTROLLING CALL SETUP AND METHOD FOR THE SAME}

1 is a diagram schematically illustrating a network connection relationship of a call connection establishment control system according to an embodiment of the present invention.

2 is a block diagram showing an internal configuration of a call connection setup control system according to an embodiment of the present invention.

3 is a diagram illustrating an example of an origination permission database illustrated in FIG. 2.

4 is a diagram illustrating an example of a text message according to an embodiment of the present invention.

5 is a diagram illustrating an example of a temporary number notification message according to an embodiment of the present invention.

6 is a flowchart illustrating a method of operating a call setup control system according to an embodiment of the present invention.

7 is a flowchart illustrating a method of registering a temporary permission number in a permission number list of an origination permission database according to an embodiment of the present invention.

8 is a flowchart illustrating a method of registering a temporary permission number in a permission number list of a source permission database according to another embodiment of the present invention.

9 is an internal block diagram of a general-purpose computer device that can be employed to perform the method of operation of the call setup control system according to the present invention.

<Explanation of symbols for the main parts of the drawings>

200: call connection setting control system

210: originating permission database 220: exchange

230: subscriber information storage means 240: service control device

250: device for providing a guide message 260: device for registering a text message

270: Notification device providing device 280 IVR device

290: POC device

The present invention relates to a call connection establishment control system and a method for controlling call connection establishment, comprising: a call connection establishment control system configured to establish a call connection only when a call connection request from a calling terminal to a called terminal is included in a call permission list; A method for controlling call connection establishment.

Today's remarkable development of information and communication technology has rapidly promoted the popularization of communication terminals (mobile devices), so that most ordinary people always have communication terminals such as mobile phones and PDAs. Therefore, the user can easily communicate with the other party using a communication terminal, so that communication is more frequent than before. While the communication terminal provides convenience to the user by facilitating communication, the situation is increasing the burden on the communication fee. In addition, as the number of users having one communication terminal per person increases, the burden on the communication fee per household is further increased.

In addition, the communication terminal can be connected to the user of the communication terminal at any time because the user can be connected to the call even when the user moves, and also, the possibility of coping with the dangerous situation by making a call connection to the outside immediately in case of danger. have. Guardians have purchased these communication terminals so that they can be carried by the ward. However, in the case of a guardian who does not have the ability to discriminate in the use of the communication terminal, a lot of communication charges are incurred due to the use of an indiscriminate communication terminal, and the protector has caused an economic loss due to such a communication charge.

In order to solve this problem, Korean Laid-Open Patent Publication No. 1998-0007324 stores a telephone number allowed in a telephone and receives a call connection request from a user to a called terminal in a state in which the telephone is allowed to be stored in a restricted mode. A configuration has been proposed in which the number information of the called terminal establishes a call connection by comparing the number information of the called terminal with the call permission telephone number. The Korean Laid-Open Patent has the advantage of reducing call charges by setting a call connection only to a previously stored outgoing allowed telephone number. However, when a user replaces a communication terminal with a new terminal, the outgoing restriction function is included. It is inconvenient to purchase a communication terminal and to re-register the outgoing telephone number in the new terminal. In addition, since the call connection can be set only for the outgoing allowed telephone number stored in the communication terminal, there is no way to solve this problem when a call connection is set up using a temporary number other than the outgoing allowed telephone number.

Therefore, a method for establishing a call connection is limited to a predetermined pre-registered permission number in the communication terminal, and a call setting is made so that the communication terminal can be efficiently set up by setting a temporary permission number externally. There is an urgent need for a call setup control system that can be controlled.

The present invention has been made to solve the above-mentioned problems of the prior art, when receiving a call connection request from the calling terminal to the called terminal through the base station, the called terminal is included in the permission number list corresponding to the calling terminal It is an object of the present invention to provide a call connection establishment control system that reduces call charges by controlling to set up a call and a method of controlling call establishment.

In addition, the present invention registers a temporary grant number for an originating terminal by using a text message or an interactive voice response (IVR) from the outside, thereby enabling a call to be set up from the originating terminal to a called terminal including the temporary grant number. The purpose is to efficiently control call setup.

In addition, the present invention enables the caller to make a call only to a phone number for which the guardian is allowed to call the terminal, thereby reducing the burden of communication charges to the guardian, and the guardian refrains from unnecessary calls. The goal is to increase the number of subscribers per system and to serve more customers with the same resources.

In order to achieve the above object and solve the above-mentioned problems of the prior art, the call setup control system according to an embodiment of the present invention, a call authorization database for storing a call number and a list of permission numbers corresponding to the call number. ; An exchange receiving a call connection request for the called terminal from the calling terminal through the base station and inquiring whether a call can be established; And a service control device (SCP) which determines whether a call can be set up from the calling terminal to the called terminal by searching the calling permission database using the calling number of the calling terminal in response to an inquiry from the exchange. And the exchange is configured such that a call from the originating terminal to the called terminal is set when the service control device determines that the call setting from the originating terminal to the called terminal is possible.

In addition, a method of operating a call setup control system according to another embodiment of the present invention comprises the steps of: maintaining a calling authorization database for storing a calling number and a list of permission numbers corresponding to the calling number; Receiving a call connection request for the called terminal from the calling terminal through the base station, and querying whether call establishment is possible; Responsive to the query whether the call can be established, determining whether a call can be set from the calling terminal to the called terminal by searching the calling permission database using the calling number of the calling terminal; And setting a call from the calling terminal to the called terminal when it is determined that the call setting from the calling terminal to the called terminal is possible.

For reference, the calling terminal and the called terminal used in the present specification may be a communication terminal, a computer terminal, a Public Switched Telephone Network (PSTN) terminal, VoIP, Session Initiation Protocol (SIP), Megaco, Personal Digital Assistant (PDA), cellular phone, PCS. (Personal Communication Service) phones, Hand-Held PCs, CDMA-2000 (1X, 3X) phones, Wideband CDMA phones, Dual Band / Dual Mode phones, GSM ( It may be one of a Global Standard for Mobile (MBS) phone, a Mobile Broadband System (MBS) phone, and a satellite / terrestrial digital multimedia broadcasting (DMB) phone.

Hereinafter, a call connection setting control system and a method for controlling call connection setting will be described in detail with reference to the accompanying drawings.

1 is a diagram schematically illustrating a network connection relationship of a call connection establishment control system according to an embodiment of the present invention.

As shown in FIG. 1, when a call connection request is received from the originating terminal 110 through the base station 120, the switching unit (MSC) 130 determines whether or not the call can be established. In response to the query, the service control device (SCP) 140 searches the origination permission database 160 to determine whether a call can be established from the originating terminal 110 to the terminating terminal 150, and If the MSC 130 determines that the call setup is possible, the call 130 is set up from the originating terminal 110 to the called terminal 150.

At this time, the origination permission database 160 records the origination permission list corresponding to the origination number.

On the other hand, when the text registration device 170 analyzes the received text message, extracts the permission target outgoing number and password from the text message, and determines that the password is valid corresponding to the permission target outgoing number. The permission number included in the received message is additionally recorded in the permission number list.

In addition, the IVR (Interactive Voice Response) device 180 receives the permission target source number, the password and the permission number according to the guide message, and when the password is determined to be valid corresponding to the permission target source number, Allow the received permission number to be additionally recorded in the permission number list.

In addition, the point of contact (POC) device 190 receives an authorization target source number, a password, and a authorization number through a computer terminal of a user connected to a communication network, and the password is valid corresponding to the authorization target source number. If it is determined, the received permission number is additionally recorded in the permission number list.

2 is a block diagram showing an internal configuration of a call connection setup control system according to an embodiment of the present invention.

As shown in FIG. 2, the call connection establishment control system 200 includes the origination permission database 210, the exchanger 220, the subscriber information storage means 230, the service control device 240, and the guidance message providing device 250. ), A text message registration device 260, a notification message providing device 270, an IVR device 280, and a POC device 290.

The call permission database 210 of the call connection establishment control system 200 stores a call number and a list of permission numbers corresponding to the call number.

3 is a diagram illustrating an example of an origination permission database illustrated in FIG. 2.

As shown in FIG. 3, the origination authorization database 300 includes a field of the origination number 310, an authorization number 320, and a password 330.

Calling number 310 may record the number information of the calling terminal of the subscriber subscribed to the call connection establishment service. The authorization number 320 may record one or more number information for permitting call connection establishment in correspondence with the calling number 310. In one example, the numbers "02-2241-1124", "010-432-1234", and "032-333-4555" are recorded as the lower number 320 corresponding to the calling number 310 "010-3431-7891". can do. That is, the calling terminal of the calling number "010-3431-7891" has a call connection setting except for the called terminal having the number information of "02-2241-1124", "010-432-1234", and "032-333-4555". It is impossible. Password 330 adds a license number to the license number 320, or when registering the temporary license number, the subscriber at the time of subscription of the call connection setup service to determine whether the calling number requesting permission to register is valid Predetermined number information can be recorded.

The exchange 220 receives a call connection request for the called terminal from the calling terminal through the base station and inquires whether a call can be established. For example, the exchange 220 receives a call connection setting from the calling terminal having the number information "010-3431-7891" to the called terminal having the number information "02-2241-1124" through the base station, and whether the call can be established. You can query

According to an embodiment of the present invention, a subscriber location storage unit (HLR; Home Location Register) 230 stores whether or not to subscribe to the call setup control service according to the calling number. The exchange 220 queries the subscriber information storage means (HLR) 230 whether or not the calling terminal subscribes to the call setting control service using the calling number of the calling terminal, and whether the call can be established according to the inquiry result. You can query

The service control point (SCP) 240 searches the call permission database 210 using the caller ID of the caller terminal in response to an inquiry about whether the call can be established from the switch 220. It is determined whether the call can be set from the calling terminal to the called terminal according to the search result. That is, for example, when the caller ID of the caller terminal is "010-3431-7891" and the caller number of the caller terminal is "02-2241-1124", the service control device (SCP) 240 permits call origination. Referring to the database 210, it is searched whether or not the called number "02-2241-1124" of the called terminal is recorded in the permission number list corresponding to the calling number "010-3431-7891" of the calling terminal. According to the search result, it is possible to determine whether the call can be set from the calling terminal to the called terminal.

The exchange 220 allows a call from the originating terminal to the terminating terminal when the service control device (SCP) 240 determines that the call setting from the originating terminal to the terminating terminal is possible. For example, in the service control device (SCP) 240, the call result number "02-2241-1124" of the called terminal is included in the permission number list of the call permission database 210 from the call terminal. If it is determined that the call setup to the called terminal is possible, the exchange 220 may allow a call from the calling terminal to the called terminal according to the determination.

According to an embodiment of the present invention, the guidance message providing device 250 is a service control device (SCP) 240 determines that the call setup from the originating terminal to the called terminal is impossible to the call announcement guide message Can be sent to the calling terminal. For example, in the service control device (SCP) 240, the caller terminal "02-789-8791" of the caller terminal is not included in the permission number list of the caller authorization database 210 as a result of the search. If it is determined that the call setup to the called terminal is impossible from the, the guide message providing apparatus 250 may transmit a call impossible guide message to the calling terminal according to the determination. Further, according to the present embodiment, the call unavailable guide message may be determined differently according to the calling number of the calling terminal.

In addition, according to another embodiment of the present invention, the text message registration device 260 analyzes the received text message to extract the permission target originating number and password from the text message, and the password is the permission target originating number. If it is determined that the valid corresponding to the permission number included in the received message may be added to the permission number list.

4 is a diagram illustrating an example of a text message according to an embodiment of the present invention.

As shown in FIG. 4, a user who wants to additionally register the permission number to the permission number list may additionally register the permission number by using a text message of a communication terminal, and the communication terminal may be inputted by the user. Using the specific number information " 1566-0011 " for the call setup control system 200, call the text message " 01034317891 # jung1122 # 0113214321 # Sooyeon dad call 011-321-4321 as soon as possible. &Quot; ) Can be sent. The text message registration device 260 of the call setup control system 200 analyzes the received text message, extracts a permission target call number "01034317891" and a password "jung1122" from the text message, and the password "jung1122". It is determined with reference to the originating permission database 210 whether "is valid" corresponding to the allowable originating number "01034317891", and when it is determined that the result is valid, the authorization number "0113214321" included in the received message is sent. Additional records may be recorded in the permit number list of 210. According to the present embodiment, the text message registration device 260 identifies each of the permission target originating number, the password, the permission number, and the message information by using the identification information "#" included in the text message. The sections can be distinguished.

Further, according to another embodiment of the present invention, the text message registration device 260 analyzes the received text message, extracts a permission target source number and a password from the text message, and the password is the permission target. If it is determined that it corresponds to the calling number, the temporary permission number included in the text message may be additionally recorded in the permission number list.

In addition, the notification message providing device 270 may extract the message information included in the text message to generate a temporary number notification message, and transmit the temporary number notification message to the calling terminal.

5 is a diagram illustrating an example of a temporary number notification message according to an embodiment of the present invention.

As shown in FIG. 5, the notification message providing device 270 may receive the text message "01034317891 # jung1122 # 0113214321 # Suyeona's father, call me soon at 011-321-4321". Call the phone number 011-321-4321 as soon as possible to extract and create a temporary number notification message, and transmit the temporary number notification message to the calling terminal.

According to this embodiment, the text message registration device 260 receives a call connection request from the calling terminal to the called terminal including the additionally recorded temporary permission number at the switching terminal 220, and sends the call message from the calling terminal to the called terminal. When the call connection is set up, the temporary permission number may be deleted from the permission number list of the origination permission database 210.

In addition, according to the present embodiment, the text message registration device 260 may maintain the additionally recorded temporary permission number for a predetermined period and delete the temporary permission number when the period is exceeded. In one example, the text message registration device 250 maintains the temporary permission number "02-501-4501" recorded in the origination permission database 210 for a predetermined "24 hours," and the "24 hours" is exceeded. In this case, the temporary permission number "02-501-4501" may be deleted from the permission number list of the origination permission database 210.

In addition, according to another embodiment of the present invention, the Interactive Voice Response (IVR) device 280 receives an authorization target origination number, a password, and an authorization number according to a guidance message, and the password is the authorization origination number. Add the received permission number to the permission number list if it is determined to be valid.

In addition, according to another embodiment of the present invention, the Interactive Voice Response (IVR) device 280 receives an authorization target origination number, a password, and a temporary authorization number according to a guide message, and the password is the authorization target origination. The received temporary grant number may be added to the grant number list when it is determined to be valid corresponding to the number. For example, a terminal of a user who wants to register the temporary permission number in the permission number list requests a call connection using "1566-0010" which is specific number information for the call setup control system 200. In response to the guidance message " Please enter the authorization target origination number " guided by voice information from the IVR device 280, enter the authorization target origination number " 01034317891 # " In response, the password "jung1122 #" is entered, and in response to the prompt message "Please enter a temporary authorization number", enter the temporary authorization number "0113214321 #" to enter the temporary authorization number in the authorization number list. have. The notification message providing device 270 may generate a temporary number notification message including the temporary permission number and transmit the temporary number notification message to the calling terminal.

In addition, according to another embodiment of the present invention, the point of contact (POC) device 290 receives the authorization target source number, password and authorization number through a computer terminal connected to the communication network, the password is the authorization If it is determined that it is valid corresponding to the destination originating number, the call from the originating terminal to the called terminal may be set to add the received permission number to the authorization number list.

6 is a flowchart illustrating a method of operating a call setup control system according to an embodiment of the present invention.

First, in step S610, the call setup control system maintains a call permission database that stores a call number and a list of permission numbers corresponding to the call number.

In step S620, the call establishment control system receives a call connection request for a called terminal from an originating terminal through a base station and queries whether call establishment is possible.

In step S630, the call setup control system searches for the call permission database using the caller ID of the caller terminal in response to an inquiry of whether the call can be established, and sets up a call from the caller terminal to the called terminal. Determine if possible.

In step S640, when the call setting control system determines that the call setting from the calling terminal to the called terminal is possible, a call from the calling terminal to the called terminal is set.

According to an embodiment of the present invention, when it is determined in step S650 that the call setup control from the calling terminal to the called terminal is impossible, the call establishment guide message is transmitted to the calling terminal. Further, according to the present embodiment, the call unavailable guide message may be determined differently according to the calling number of the calling terminal.

Further, according to another embodiment of the present invention, the call setup control system analyzes the received text message, extracts an authorization target outgoing number and password from the text message, and the password is assigned to the authorization target outgoing number. If it is determined that the corresponding validity, the permission number included in the received message may be added to the permission number list.

Further, according to another embodiment of the present invention, the call setup control system may additionally record the temporary permission number included in the received text message in the permission number list of the origination permission database. Hereinafter, a description will be given with reference to FIG. 7.

7 is a flowchart illustrating a method of registering a temporary permission number in a permission number list of an origination permission database according to an embodiment of the present invention.

In step S710, the call establishment control system analyzes the received text message and extracts an authorization target originating number and a password from the text message.

In step S720, if it is determined that the password is valid corresponding to the permission originating number, the call establishment control system further records the temporary permission number included in the text message in the permission number list.

In step S730, the call establishment control system extracts the message information included in the text message and generates a temporary number notification message.

In step S740, the call setup control system transmits the temporary number notification message to the calling terminal.

In addition, according to another embodiment of the present invention, the call setup control system receives an authorization target call number, a password and a permission number according to a guide message using an interactive voice response (IVR), and the password is the password. The received permission number may be additionally recorded in the permission number list when it is determined to be valid corresponding to the permission target originating number.

Further, according to another embodiment of the present invention, the call setup control system may additionally record the temporary grant number received using the IVR means in the list of permit numbers in the originating grant database. Hereinafter, a description will be given with reference to FIG. 8.

8 is a flowchart illustrating a method of registering a temporary permission number in a permission number list of a source permission database according to another embodiment of the present invention.

In step S810, the call setup control system receives an authorization target source number, a password, and a temporary authorization number according to a guide message by using an interactive voice response (IVR).

In step S820, if it is determined that the password is valid corresponding to the permission originating number, the call establishment control system further records the received temporary permission number in the permission number list.

In step S830, the call setup control system generates a temporary number notification message including the temporary permission number.

In step S840, the call setup control system transmits the temporary number notification message to the calling terminal.

Further, according to another embodiment of the present invention, the call setup control system receives an authorization target call number, a password and a authorization number through a computer terminal connected to a communication network, and the password corresponds to the authorization target call number. If it is determined that the validity is valid, the received permission number may be additionally recorded in the permission number list.

The operation method of the call setup control system according to the present invention can be implemented in the form of program instructions that can be executed by various computer means and recorded in a computer readable medium. The computer readable medium may include program instructions, data files, data structures, etc. alone or in combination. The program instructions recorded on the medium may be those specially designed and constructed for the present invention or may be available to those skilled in the art of computer software. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks, and magnetic tape, optical media such as CD-ROMs, DVDs, and floppy disks. Magneto-optical media, and hardware devices specifically configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like. The medium may be a transmission medium such as an optical or metal line, a wave guide, or the like, including a carrier wave for transmitting a signal designating a program command, a data structure, or the like. Examples of program instructions include not only machine code generated by a compiler, but also high-level language code that can be executed by a computer using an interpreter or the like. The hardware device described above may be configured to operate as one or more software modules to perform the operations of the present invention, and vice versa.

9 is an internal block diagram of a general purpose computer device that may be employed to perform a method of operation of a call setup control system in accordance with the present invention.

Computer device 900 includes one or more processors 910 coupled with a main memory device including random access memory (RAM) 920 and read only memory (ROM) 930. The processor 910 may also be referred to as a central processing unit (CPU). As is well known in the art, the ROM 930 serves to transfer data and instructions to the CPU unidirectionally, and the RAM 920 typically transfers data and instructions bidirectionally. Used to. RAM 920 and ROM 930 may comprise any suitable form of computer readable media. Mass Storage 940 is coupled bidirectionally with processor 910 to provide additional data storage capabilities and may be any of the above computer-readable media. The mass storage device 940 is used to store programs, data, and the like, and is a secondary memory device such as a hard disk which is generally slower than the main memory device. Certain mass storage devices such as CD ROM 960 may be used. The processor 910 may be one or more input / output interfaces, such as a video monitor, trackball, mouse, keyboard, microphone, touch screen display, card reader, magnetic or paper tape reader, voice or handwriting recognizer, joystick, (950). Finally, the processor 910 may be connected to a wired or wireless communication network through a network interface 970. [ Through this network connection, the procedure of the method described above can be performed. The apparatus and tools described above are well known to those skilled in the computer hardware and software arts. On the other hand, the hardware device described above may be configured to operate as one or more software modules to perform the operations of the present invention.

In the above embodiments, an example of a case in which a calling permission number that can be set by the calling terminal is stored in a database, and it is determined whether the call setting request from the calling terminal is intended for a called number stored in the database. As described above, the technical idea of the present invention encompasses a case in which a calling prohibition number is stored in a database, and a call setting request is determined from a calling terminal for a prohibition number stored in a database.

That is, the present invention as described above, although described by the limited embodiment and the drawings, the present invention is not limited to the above embodiment, and those skilled in the art to which the present invention belongs to various modifications from this description And variations are possible.

Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined not only by the claims below but also by the equivalents of the claims.

When receiving a call connection request from the calling terminal to the called terminal through the base station according to the present invention, the call charge can be reduced by controlling to set up a call when the called terminal is included in the list of permission numbers corresponding to the calling terminal. have.

In addition, according to the present invention, by registering a temporary permission number for the calling terminal using a text message or an interactive voice response (IVR) from the outside, the call set-up from the calling terminal to the called terminal including the temporary permission number to be possible By doing this, call setup can be controlled more efficiently.

In addition, the present invention enables the caller to make a call only to a phone number for which the guardian is allowed to call the terminal, thereby reducing the burden of communication charges to the guardian, and the guardian refrains from unnecessary calls. By increasing the number of subscribers per system, the same resources can serve more customers.

Claims (17)

In a call setup control system, A calling authorization database storing a calling number and a list of permission numbers corresponding to the calling number; An exchange receiving a call connection request for the called terminal from the calling terminal through the base station and inquiring whether a call can be established; A service control device (SCP) for retrieving whether a call can be established from the calling terminal to the called terminal by searching the calling permission database using the calling number of the calling terminal in response to an inquiry from the exchange; And Parsing the received text message, extracting the authorized source number and password from the text message, and if the password is determined to be valid corresponding to the authorized target number, the permission included in the received text message; Text message registration device for adding a number to the permission number list Including, And the exchange sets the call from the calling terminal to the called terminal when the service control device determines that the call setting from the calling terminal to the called terminal is possible. delete The method of claim 1, The text message registration device Analyze the received text message to extract an authorized target outgoing number and password from the text message, and if the password is determined to be valid corresponding to the authorized target outgoing number, a temporary authorization number included in the text message. Add to the permission number list, The guide message providing device Extracting the message information included in the text message to generate a temporary number notification message, and transmitting the temporary number notification message to the calling terminal. The method of claim 1, The call setup control system Receive an authorization target source number, password and authorization number according to the guidance message, and add the received authorization number to the authorization number list when it is determined that the password is valid corresponding to the authorization target source number. Call establishment control system further comprises an IVR (Interactive Voice Response) device. 5. The method of claim 4, The IVR device is Receive the permission target calling number, password and temporary permission number according to the guidance message, and add the received temporary permission number to the permission number list when it is determined that the password is valid corresponding to the permission target calling number. Let's do it, The guide message providing device And generating a temporary number notification message including the temporary permission number and transmitting the temporary number notification message to the calling terminal. The method of claim 1, The call setup control system Receive permission number, password and permission number through a computer terminal connected to a communication network, and if the password is determined to be valid corresponding to the permission number from the permission number, the received permission number to the permission number list And a point of contact (POC) device for adding. The method of claim 1, The call setup control system And a guide message providing device for transmitting a call impossible guide message to the calling terminal when the service control device determines that the call setting from the calling terminal to the called terminal is impossible. . The method of claim 7, wherein The call impossible guide message is determined according to the calling party's calling number. The method of claim 1, The call setup control system Further comprising a subscriber information storage means (HLR; Home Location Register) for storing whether to subscribe to the call setup control service according to the calling number, The exchange inquires whether the originating terminal subscribes to the call setting control service by using the calling number of the calling terminal, and inquires whether the call can be established according to the inquiry result. system. In the operation method of the call setup control system, Maintaining a calling permission database storing a calling number and a list of permission numbers corresponding to the calling number; Receiving a call connection request for the called terminal from the calling terminal through the base station, and querying whether call establishment is possible; Responsive to the query whether the call can be established, determining whether a call can be set from the calling terminal to the called terminal by searching the calling permission database using the calling number of the calling terminal; Analyzing the received text message and extracting a permission target originating number and password from the text message; Adding a permission number included in the received text message to the permission number list when the password is determined to be valid corresponding to the permission target originating number; And Making a call from the calling terminal to the called terminal when it is determined that the call setting from the calling terminal to the called terminal is possible; Method of operation of a call setup control system comprising a. delete The method of claim 10, The operation method of the call setup control system Analyzing the received text message and extracting a permission target originating number and password from the text message; Adding a temporary permission number included in the text message to the permission number list when it is determined that the password is valid corresponding to the permission originating number; Extracting message information included in the text message to generate a temporary number notification message; And Transmitting the temporary number notification message to the calling terminal; Method of operation of the call setup control system further comprising. The method of claim 10, The operation method of the call setup control system Receiving an authorization target source number, a password, and a permission number according to a guide message using an interactive voice response (IVR); And Adding the received permission number to the permission number list if it is determined that the password is valid corresponding to the permission target originating number; Method of operation of the call setup control system further comprising. The method of claim 10, The operation method of the call setup control system Receiving an authorization target source number, a password, and a temporary authorization number according to a guide message using an interactive voice response (IVR); Adding the received temporary grant number to the grant number list if it is determined that the password corresponds to the grant originating number; And Generating a temporary number notification message including the temporary permission number and transmitting the temporary number notification message to the calling terminal; Method of operation of the call setup control system further comprising. The method of claim 10, The operation method of the call setup control system Receiving an authorization target originating number, password, and authorization number through a computer terminal connected to a communication network; And Adding the received permission number to the permission number list when it is determined that the password is valid corresponding to the permission target originating number; Method of operation of the call setup control system further comprising. The method of claim 10, The operation method of the call setup control system If it is determined that the call setup from the calling terminal to the called terminal is impossible, transmitting a call impossible guide message to the calling terminal. Method of operation of the call setup control system further comprising. A computer-readable recording medium having recorded thereon a program for executing the method according to any one of claims 10 and 12 to 16.

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