KR20050112142A - System and method for denying spam-call from phone - Google Patents

Abstract

The present invention relates to a spam call rejection system and method.

The present invention provides a method for rejecting a spam call (SPAM-Call), which blocks a call connection attempt by detecting a spam call signal among call signals attempting to make a call connection with a mobile communication terminal. Receiving a; (b) detecting the spam call signal from the call signal; (c) searching the database to determine whether the mobile communication terminal has subscribed to the spam call rejection; (d) generating a call disconnection signal and forwarding it to the mobile communication switching center; And (e) storing the spam call signal in a database.

According to the present invention, since the spam call detection server blocks a call signal including a specific number suspected as a spam call signal among the call signals, for example, 060, 700, and 800 numbers, the mobile communication subscriber does not want the time and place. There is no need to worry about incoming calls from.

Description

System and Method for Denying SPAM-Call from Phone}

The present invention relates to a spam call rejection system and method. More specifically, a spam call detection server is configured to detect a spam call signal in a mobile communication system, and the spam call detection server is a spam call rejection system that detects a spam call signal among call signals attempting to make a call connection with a mobile communication terminal. And to a method.

Information and communication technology represented by the Internet and mobile communication has changed the life patterns of modern people. Nearly all homes, schools and offices have Internet-enabled personal computers that enable them to acquire information through Web sites, purchase products through e-commerce, and exchange news via e-mail. Just a few years ago, people could only use voice communication-oriented mobile services using mobile terminals. Recently, however, a wireless Internet service has emerged in which mobile communication terminals can receive data communication services using the Internet. Thus, text messaging, financial settlement, home automation, and wireless Internet use can be performed with one mobile communication terminal. It is now possible to receive a variety of services.

As such, the mobile communication terminal is becoming a necessity of life for modern people, and a separate communication business using the mobile communication terminal is actively being developed. The separate telecommunications business refers to the provision of telephone service by renting or installing part of a telecommunications facility from a main telecommunications carrier. For example, 060, 080, and 700 voice information services that provide services such as coloring services that generate sound effects during the call connection process, Internet phone services that use telephones to make phone calls, and advertisements, fortune telling, entertainment, and life information. And the like. Separate carriers use spam texts and / or spam calls as a means to promote themselves. Spam text refers to sending a text message containing an advertising message to a communication subscriber unilaterally, spam phone means to advertise by attempting a phone call by randomly selecting a phone number of the communication subscriber.

1 is a flowchart illustrating a call processing process in a general mobile communication system.

For convenience of explanation, it is assumed that a call is generated in a terminal connected to a wired communication network of a calling party and transmitted to a mobile communication terminal connected to a wireless communication network. In addition, the calling party inputs the called party's called party number in order to call the called party called dialing, and a channel is formed between the calling party and the receiving party so that voice, video, packet data, and the like are mutually communicated. What can be transferred is called a call.

The calling party subscriber enters the called party number of the mobile communication terminal into the calling terminal in order to call the called mobile terminal. For example, when a number of '011-XXX-XXXX' type is inputted to a terminal of a calling party, a call signal is generated and the generated call signal is transmitted to a public switched telephone network (S100). At this time, the call signal transmitted to the public switched telephone network includes the calling party's calling number.

The public switched telephone network receives a call signal generated by the calling party to a telephone exchange network operated by a public telecommunication operator and transmits it to the mobile telecommunication switching center of the wireless telecommunication operator (S102). The mobile communication switching center receiving the call signal in step S102 generates a subscriber information request signal and transmits it to the home location register in order to determine whether the receiving mobile terminal has subscribed to the mobile communication service (S104).

The home location register determines whether the mobile communication terminal is subscribed to the mobile communication service based on the subscriber information request signal transmitted from the mobile communication switching center, and generates a location information request signal to determine the location of the mobile communication terminal. Transfer to (S106). If the mobile communication terminal attempting the call connection is not registered in the home location register, the home location register generates a call disconnection signal and transmits it to the mobile communication switching center, and the call processing process ends.

The visitor location register, which receives the location information request signal, interlocks with the Global Positioning System (GPS) system to identify the location of the mobile communication terminal, generates location information, and transfers the generated location information to the mobile communication switching center through the home location register. (S108).

The mobile communication switching center receiving the location information from the visitor location register transmits a call signal to the corresponding mobile communication terminal, and the mobile communication terminal generates a ring back tone (S110). When the receiving subscriber operates the call button among the keypads provided in the mobile communication terminal, the call is started and the call processing process is terminated (S112).

As shown in FIG. 1, in the general call processing process, the separate communication service provider can call the other party regardless of the situation in which the mobile subscriber is attending an important meeting or watching a performance with only the call number of the mobile communication terminal. There is this. Moreover, even if the mobile subscriber is subscribed to the caller ID service in which the calling party's caller ID is displayed, the mobile communication service may be used when a separate carrier impersonates its caller ID (CID) and attempts to make a call. The problem is that the subscriber has no choice but to accept the call connection.

In order to solve the above-mentioned problems, the present invention provides a spam call detection server that monitors a call signal and detects a spam call signal in a mobile communication system, thereby providing a spam call signal among call signals attempting to make a call connection with the mobile communication terminal. It is an object of the present invention to provide a spam call rejection system and method that detects and blocks a call connection attempt.

Accordingly, according to a first object of the present invention, in a method for rejecting a spam call (SPAM-Call), which blocks a call connection attempt by detecting a spam call signal among call signals attempting to make a call connection with a mobile communication terminal, (a Receiving the call signal from a mobile communication switching center; (b) detecting the spam call signal from the call signal; (c) searching the database to determine whether the mobile communication terminal has subscribed to the spam call rejection; (d) generating a call disconnection signal and forwarding it to the mobile communication switching center; And (e) storing the spam call signal in a database.

According to a second object of the present invention, a spam call reception system for detecting a spam call signal among call signals attempting to make a call connection with a mobile communication terminal to block a call connection attempt, wherein the movement is based on a predetermined protocol. A wireless access network that exchanges data with a communication terminal wirelessly; A mobile communication switching center having a control function for allowing the wireless access network to operate efficiently and an interworking function with an exchange of a public switched telephone network; An SMS center connected to the mobile communication switching center to generate a short message to be delivered to the mobile communication terminal; A home location register that receives location information of the mobile communication terminal and performs functions such as registration recognition, registration deletion, and location checking; A visitor location register that performs location control, call processing, and external operation processing of the mobile communication terminal; An internet providing an access path for the mobile communication terminal to access a web server via the mobile communication switching center to transmit and receive data; And a spam call detection server for monitoring the call signal transmitted to the mobile communication switching center and detecting the spam call signal among the call signals.

According to a third object of the present invention, a spam call detection server detecting a spam call signal among call signals attempting to make a call connection with a mobile communication terminal to block a call connection attempt detects the spam call signal and makes a call. A program storage unit equipped with a call signal detection program for generating a disconnection signal and transmitting the disconnection signal to a mobile communication switching center; A control unit controlling overall operation of the call signal detection server; A database unit for storing subscriber information subscribed to the rejection of spam call reception and the spam call signal; A network interface card (NIC) for providing a communication interface for communication with the mobile communication switching center; A memory unit that temporarily stores data processed by the controller or temporarily stores the call disconnection signal generated by the call signal detection program; And it provides a spam call detection server comprising a display unit for providing a variety of data or operation status as an image.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First of all, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are used as much as possible even if displayed on different drawings. In addition, in describing the present invention, when it is determined that the detailed description of the related well-known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted.

2 is a diagram briefly showing a spam call rejection system according to a preferred embodiment of the present invention.

Spam call rejection system according to a preferred embodiment of the present invention is a mobile communication terminal 200, Radio Access Network (RAN: Radio Access Network) 210, Mobile Communication Switching Station 220, Home Location Register (HLR) ) (222), Visitor Location Register (VLR) (224), SMS Center (226), Spam Call Detection Server (228), Inter-Working Function (IWF) (230), Public Telephone A public switched telephone network (PSTN) 232, a WAP gateway 234, an internet 236, and a separate telecommunications operator terminal 238.

The mobile communication terminal 200 not only provides a voice call function for performing a normal voice call through wireless communication with other mobile communication terminals connected to the mobile communication network through the wireless access network 210, but also provides a text preparation function. It is a terminal that can write a short message to be delivered using a function and then send the message to the mobile communication network. In addition, the mobile communication terminal 200 is a terminal capable of receiving a data service by accessing the Internet 240 through a provided web browser.

To this end, the mobile communication terminal 200 includes a wireless application protocol (WAP) which is an Internet access protocol, a MIE (Microsoft Internet Explorer) based on HTML using an HTTP protocol, and a handheld device transport protocol (HDPT). Protocol), NTT DOKOMO's i-Mode, or SK Telecom's 'NATE' to connect to the Internet 240 via a mobile communication network using a browser. Among the Internet access protocols used in the mobile communication terminal 200, MIE uses a shortened version of HTML, which is abbreviated m-HTML, and in the case of i-Mode, a language called compact HTML (c-HTML), which is a subset of HTML. Use

The wireless access network 210 includes a base station transmission system (BTS) 212, a base station controller (BSC) 214, a repeater (Enhancer: not shown), and the like, and is synchronous and asynchronous. Support all.

The wireless access network 210 is a terrestrial infrastructure that exchanges data wirelessly with the mobile communication terminal 200 based on a predetermined protocol, and includes a handoff and a radio resource management function. The mobile communication terminal 200 Location information, the registrant information, and the short message created in the mobile communication terminal 200 are transmitted to the mobile communication switching center 220.

The base station transmitter 212 receives a call request signal from the mobile communication terminal 200 through a traffic channel of the signal channel, and transmits the received call request signal to the base station controller 214. In addition, the base station transmitter 212 is a network endpoint device that is directly connected to the mobile communication terminal 200 by performing baseband signal processing, wired and wireless conversion, and transmission and reception of wireless signals. In addition, each of the base station transmitters 212 are arranged in units of cells, and transmits a call request generated by the mobile communication terminal 200 to the mobile communication switching center 220 or exists in a cell area under its control. Location information registration for identifying the location of the communication terminal 200 is performed.

The base station transmitter 212 transfers the position information of the base station transmitter 212 from the global positioning system (GPS) to the mobile communication terminal 200 through a system parameter message of the forward link call channel. The mobile communication terminal 200 may register new location information by calculating the moving distance of the mobile communication terminal 200 using the location information of the base station transmitter 212 of the cell to which the mobile communication terminal 200 belongs.

The location information registration is a processing procedure for informing the mobile communication switching center 220 of the location, status, identifier, slot period, and other characteristics of the mobile communication terminal 200 through the base station transmitter 212. This is a procedure for effectively calling the mobile communication terminal 200 when attempting to set up an incoming call to the mobile communication switching center 220 through. The location information registration of the mobile communication terminal 200 may be performed when the mobile communication terminal 200 is powered on or off, when the mobile communication terminal 200 is handed off, and when the mobile communication terminal 200 is handed off. This is done when system parameters change.

The mobile communication switching center 220 has a control function for allowing the wireless access network 210 to operate efficiently and an interworking function with the switch of the public switched telephone network 232, and the short message received through the wireless access network 210. To store and transmit to the SMS center 226, and receives a short message from the SMS center 226 again to transmit to the wireless access network 210. In the present invention, the mobile communication switching center 220 transmits a call signal calling the mobile communication terminal 200 to the spam call detection server 228. In addition, when receiving the call disconnection signal from the spam call detection server 228, the mobile communication switching center 220 terminates the call processing process of calling the mobile communication terminal 200.

When the mobile communication switching center 220 registers the location information of the mobile communication terminal 200 through the wireless access network 210, the visitor location register 224 of the mobile communication switching station 220 of the mobile communication terminal 200 is used. After temporarily storing the subscriber information, the home location register 222 requests registration of the location information of the mobile communication terminal 200.

The home location register 222 receives the location information of the mobile communication terminal 200 from the visitor location register 224 and performs functions such as registration recognition, registration deletion, and location verification. In addition, the home location register 222 stores profile information of the mobile communication terminal 200 which is waiting for a call. Here, the profile information refers to a mobile identification number (MIN), an electronic serial number (ESN) and / or subscribed mobile communication service information of the mobile communication terminal 200. In a preferred embodiment of the present invention, the profile information of the home location register 222 includes spam call rejection subscriber information. If the user is subscribed to the spam call reject service, the home location register 22 forwards the call signal transmitted to the mobile communication terminal 200 to the spam call detection server 228.

The visitor location register 224 transmits the subscriber data to the mobile communication switching center 220 in the case of the location information of the visited subscriber where the location information registration is performed, in the case of transmission from the transmitting mobile terminal, reception to the receiving mobile terminal, and the like. Receive and save from. When the mobile communication terminal 200 performs location information registration, the visitor location register 224 temporarily stores subscriber information and notifies the home location register 222 to the mobile location terminal 222. While receiving and managing copies of the terminal identification number, the terminal unique number, and the service information of the terminal 200, the mobile terminal 200 performs a function of utilizing the position control, call processing, external operation processing, and the like.

The SMS center 226 is connected to the mobile switching center 220 and has a function of delivering a short message to mobile communication subscribers. The SMS center 226 allows a user to send and receive numbers and letters bidirectionally between various text delivery systems (PC communication system, Internet server system, mobile communication terminal, etc.) and subscribers using a mobile communication network. Of course, the mobile subscriber may send a text message through the mobile communication terminal 200. If the character requested by the sender is not immediately transmitted to the receiver, it is stored in the SMS center 226 until the time specified by the sender or the receiver reaches a state in which it can be received. When the receiver acknowledges the text transmitted by the sender, it is deleted by the SMS center 226, and after a predetermined time has elapsed or the text that has not been delivered by the sender designated valid time is deleted.

The spam call detection server 228 is interlocked with the mobile communication switching center 220 and has a function of detecting whether a spam call signal is included by receiving a call signal from the mobile communication switching center 220. In other words, the spam call detection server 228 analyzes the call signal to determine whether the caller includes the calling number 060, 080, 700, etc. in the header portion of the call signal. In the case of a text message, it is determined whether the reply number includes 060, 080, 700, and the like. Therefore, if the header portion of the call signal transmitted to the mobile communication terminal 200 includes the calling number 060, 080, 700, etc., the spam call detection server 228 generates a call disconnection signal and generates a call disconnection signal. ), The spam call signal is stored in a database of spam call detection server 228.

The database of the spam call detection server 228 includes spam call reject subscriber information subscribed to spam call rejection, time information received from a spam call signal, time information for generating a call disconnection signal, and the like.

The network interworking device 230 provides an interface for exchanging data between a wireless communication system and a wired communication system and converts protocols, signals, and data into a form suitable for each network. In general, the manganese interworking device 230 is directly connected to the mobile communication switching center 220 to connect a wired communication network and a wireless communication network.

The public switched telephone network 232 is a telephone exchange network operated by a public telecommunications operator that provides voice telephone or data exchange service to a plurality of subscribers through an exchange office.

The WAP gateway 234 performs a function such as communication code conversion or protocol conversion between the mobile communication network and the Internet 240 to quickly retrieve and display information on the wired Internet, thereby interconnecting the mobile communication network and the Internet 240. Do this. That is, the WAP gateway 234 converts the WAP protocol and the TCP / IP (Transmisson Control Protocol / Internet Protocol) protocol. Accordingly, a HyperText Transfer Protocol (HTTP) protocol is used between a web server (not shown) connected to the Internet 240 and the WAP gateway 234, and a WAP protocol is provided between the mobile communication terminal 200 and the WAP gateway 234. The transmission and reception of data is performed. The WAP gateway 234 converts a website address (URL) request from the mobile communication network into an HTTP request according to the WAP protocol, and then requests the website address from the web server according to the HTTP protocol through the Internet 240.

In addition, the WAP gateway 234 converts the HTML-formatted content received from the web server into a binary code so that the mobile communication terminal 200 can recognize the content, and transmits the content to a binary code to the mobile communication terminal 200. Since the data passing through the WAP gateway 234 is converted into a binary code, there is an advantage that the amount of data is reduced and the burden is reduced when transmitting to the mobile communication network.

As described above, the WAP is a general term for a communication protocol that enables the Internet 240 to be used through a wireless communication terminal such as a mobile communication terminal 200 or a personal information terminal. In order to solve the communication speed problem of the relatively slow wireless communication, the WAP does not transmit a text code on the Internet 240 as it is, but converts it into a binary code and transmits it to a wireless communication terminal. In addition, WAP is designed considering the contents and the wireless communication terminal to use the WAP from the model design, so that users can use the Internet with only the wireless terminal.

The internet 236 is a communication network that provides a connection path for the mobile communication terminal 200 to access a web server via a mobile communication switching center 220 to transmit and receive data.

Dedicated telecommunications operator terminal 238 refers to a terminal connected to the public switched telephone network 232 to generate a spam call signal to the mobile communication terminal 200, in the present invention is connected to the public switched telephone network 232 for convenience of description. But it is not necessarily limited thereto. That is, the separate telecommunication service provider terminal 238 may be replaced with a wireless communication terminal or an Internet phone connected to the Internet 240. However, the telecommunications terminal 238 generates a spam call signal including an advertisement message.

3 is a diagram schematically showing the internal configuration of a spam call detection server according to a preferred embodiment of the present invention.

 The internal configuration of the spam call detection server according to the preferred embodiment of the present invention may include a program storage unit 300, a memory unit 302, a control unit 304, a display unit 306, a NIC 308, a database unit 310, And a key input unit 312.

The program storage unit 300 includes a call signal detection program for monitoring a call signal transmitted to the mobile communication terminal and detecting a spam call signal among the monitored call signals. The call signal detection program receives a call signal from a mobile communication switching center, detects a call signal whose header portion starts with 060, 080, 700, etc., and generates a call disconnection signal based on the detected spam call signal. Implemented using spam call detection algorithm delivered to exchange. The call signal detection program can be implemented in various ways depending on the operating system (OS) of the spam call detection server. For example, the call signal detection program can be implemented in a 'C' programming language or an object-oriented 'C ++' or 'JAVA' programming language.

The memory unit 302 temporarily stores data processed by the controller 304 or temporarily stores a call disconnection signal generated by a call signal detection program.

The control unit 304 is a kind of central processing unit that controls the overall operation of the spam call detection server. In particular, the control unit 304 drives the call signal detection program stored in the program storage unit 300 to compare the spam call rejection subscriber information stored in the database unit 310 with the subscriber information transmitted from the mobile communication switching center. Determines whether is subscribed to spam call rejection. In addition, the controller 304 generates a call disconnection signal when a spam call signal is detected by driving a spam call signal detection program.

The database unit 310 includes spam call rejection subscriber information subscribed to spam call rejection, time information received from a spam call signal, time information for generating a call disconnection signal, and the like.

The display unit 306 provides various data or operation statuses as an image, and displays not only the processing status according to key input from the key input unit 312 but also the processing status for a phone number search request of a short code. NIC (NIC: Network Interface Card) 308 is a communication module for providing a communication interface for communication with a mobile communication switching center, receiving a spam call signal transmitted to the mobile communication terminal from the mobile communication switching center, spam call detection program The call disconnection signal generated by the UE is transmitted to the mobile communication switching center.

4 is a flowchart illustrating a call processing process of a spam call reject system according to a preferred embodiment of the present invention.

When a call number of a mobile communication terminal, for example, a number of a type '011-XXX-XXXX' is input into a terminal of a separate communication operator, a call signal is generated, and the generated call signal is transmitted to a public switched telephone network (S400). The call signal includes the calling party's calling number, for example, '060-xxx-xxxx-xxxx'.

The public switched telephone network transmits a call signal to the mobile telecommunication switching center (S402). The mobile communication exchange receiving the call signal generates a subscriber information request signal including the call signal and transmits it to the home location register in order to determine whether the mobile communication terminal subscribes to the mobile communication service (S404).

Based on the subscriber information request signal, the home location registrar determines whether the user is subscribed to the spam call rejection through data communication with the spam call detection server, and transmits the call signal to the spam call detection server if the subscriber is subscribed to the spam call rejection ( S406). On the contrary, if it is not subscribed to the rejection of spam calls, the home location register generates a location information request signal and transmits it to the visitor location register (S408).

The spam call detection server drives the mounted spam call detection program to determine whether the call signal is a spam call signal (S410). If it is determined to be a spam call signal, the spam call detection server generates a call disconnection signal and transmits it to the mobile communication switching center. The mobile communication switching center receiving the call disconnection signal ends the call processing process (S412).

If it is determined in step S410 that the call signal is not a spam call signal, and generates a location information request signal to determine the location of the mobile communication terminal (S414).

The visitor location register, which has received the location information request signal, generates location information of the mobile communication terminal in cooperation with the GPS system, and transmits the generated location information to the mobile communication switching center through the home location register (S416).

The mobile communication switching center receiving the location information transmits a call signal to the mobile communication terminal, and the mobile communication terminal receiving the call signal generates a ring back tone (S418). If the receiving mobile subscriber operates the call button of the mobile communication terminal, the call starts and the call processing process ends (S420).

The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and changes without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.

As described above, according to the present invention, since the spam call detection server blocks a call signal including a specific number suspected as a spam call signal among the call signals, for example, 060, 080, and 700, There's an effect that you don't have to worry about incoming calls at unwanted times and places.

In addition, there is an advantage of preventing a call attempt from being delivered to a mobile communication subscriber even when a separate communication service provider attempts to make a call connection by disguising his caller ID (CID).

1 is a flowchart illustrating a call processing process in a general mobile communication system;

2 is a diagram briefly showing a spam call rejection system according to a preferred embodiment of the present invention;

Figure 3 is a simplified diagram showing the internal configuration of the spam call detection server according to an embodiment of the present invention,

4 is a flowchart illustrating a call processing process of a spam call reject system according to a preferred embodiment of the present invention.

<Description of Symbols for Main Parts of Drawings>

200: mobile communication terminal 210: wireless access network

212: base station transmitter 214: base station controller

220: mobile communication switching center 222: home location register

224: Visitor Location Register 226: SMS Center

228: Spam call detection server 230: Manganese interworking device

232: public switched telephone network 234: WAP gateway

236: Internet 238: terminal operators

300: program storage unit 302: memory unit

304: control unit 306: display unit

308: NIC 310: database portion

312: key input unit

Claims (13)

Claims [1] A method for rejecting a spam call (SPAM-Call) which detects a spam call signal among call signals attempting to make a call connection with a mobile communication terminal and blocks a call connection attempt. (a) receiving the call signal from a mobile communication switching center; (b) detecting the spam call signal from the call signal; (c) searching the database to determine whether the mobile communication terminal has subscribed to the spam call rejection; (d) generating a call disconnection signal and forwarding it to the mobile communication switching center; And (e) storing the spam call signal in a database Spam call rejection method comprising a. The method of claim 1, wherein step (b) Spam call reject method characterized in that it is determined that the spam call signal if the header portion of the call signal includes 060 station number, 080 station number, 700 station number. The method of claim 1, The call signal is a spam call reject method comprising a text message, voice message, text message, video message. The method of claim 1, wherein in step (c), And determining whether to subscribe to the spam call rejection by comparing subscriber information stored in a home location register with registration information stored in a database. The method of claim 1, wherein in step (e), The database includes a spam call rejection subscriber information subscribed to spam call rejection, time information receiving a spam call signal, and time information generating a call disconnection signal. Claims [1] A spam call rejection system for detecting a spam call signal among call signals attempting to make a call connection with a mobile communication terminal and blocking a call connection attempt. A wireless access network that exchanges data wirelessly with the mobile communication terminal based on a predetermined protocol; A mobile communication switching center having a control function for allowing the wireless access network to operate efficiently and an interworking function with an exchange of a public switched telephone network; An SMS center connected to the mobile communication switching center to generate a short message to be delivered to the mobile communication terminal; A home location register that receives location information of the mobile communication terminal and performs functions such as registration recognition, registration deletion, and location checking; A visitor location register that performs location control, call processing, and external operation processing of the mobile communication terminal; An internet providing an access path for the mobile communication terminal to access a web server via the mobile communication switching center to transmit and receive data; And A spam call detection server that monitors the call signal transmitted to the mobile communication switching center and detects the spam call signal among the call signals. Spam call rejection system comprising a. The method of claim 6, The call signal is a spam call reject system, characterized in that it comprises a text message, voice message, text message, video message. The method of claim 6, The spam call detection server compares the subscriber information stored in the home location register with the spam call rejection subscriber information stored in the database, determines whether to subscribe, and generates a call disconnection signal and delivers it to the mobile communication exchange. Call Rejection System. The method of claim 6, The spam call detection server determines that the spam call signal is included if the call signal includes 060 station number, 080 station number or 700 station number. The method of claim 6, And the mobile communication terminal can access the spam call signal detection server to check the spam call signal. A spam call detection server that detects a spam call signal among call signals attempting to make a call connection with a mobile communication terminal and blocks a call connection attempt. A program storage unit equipped with a call signal detection program for detecting the spam call signal, generating a call disconnection signal, and transmitting the generated call disconnection signal to a mobile communication switching center; A control unit controlling overall operation of the call signal detection server; A database unit for storing subscriber information subscribed to the rejection of spam call reception and the spam call signal; A network interface card (NIC) for providing a communication interface for communication with the mobile communication switching center; A memory unit that temporarily stores data processed by the controller or temporarily stores the call disconnection signal generated by the call signal detection program; And Display unit that provides various data and operation status as images Spam call detection server comprising a. The method of claim 11, The call signal detection program analyzes the call signal and determines that the call signal is spam when the header part includes a specific number. The call signal detection program uses the C programming language or the object oriented C ++ or JAVA programming language. Spam call detection server, characterized in that the implementation. The method of claim 12, The specific number is 060, 080, 700, and the spam call detection server, wherein the call disconnection signal is generated when the specific number is included.