KR100865856B1

KR100865856B1 - Method and system for providing services operation locking of mobile communication terminal, and mobile terminal therefor

Info

Publication number: KR100865856B1
Application number: KR20070116753A
Authority: KR
Inventors: 김민식
Original assignee: 주식회사 케이티프리텔
Priority date: 2007-11-15
Filing date: 2007-11-15
Publication date: 2008-10-29

Abstract

Method and a system for providing operation restriction services of a mobile terminal, and a mobile terminal therefore are provided to restrict the operation of the mobile communications terminals in a specified location or the specific target through management terminal and to limit the terminal operation quickly and efficiently in case of preventing a user from using the terminal for a specific time. A mobile terminal for providing operation restriction services includes a locking control unit(230), a signal receiving unit(210), and an input unit(220). The input unit inputs an agreement signal or a password from a user and provides the signal to the locking control unit by using the keypad of the mobile terminal. The locking control unit installs a locking control application for restricting the operation of the terminal and controls the operation of the terminal according to the agreement signal and the password receiving from an operation restriction device.

Description

Method and system for providing service limiting service of mobile communication terminal, and a mobile communication terminal for the same method and system for providing services operation locking of mobile communication terminal, and mobile terminal therefor}

The present invention relates to a mobile communication system and a mobile communication terminal, and more particularly, to a service providing method and system that can limit the operation of the mobile communication terminals.

With the recent rapid development of electronic engineering and communication engineering, mobile communication terminals have various functions. That is, with the rapid development of wireless communication and data processing technology, people can use not only voice calls but also Internet access, video communication and video message transmission using mobile communication terminals. In addition, due to the rapid dissemination of mobile communication terminals, mobile communication terminals have become an essential means of communication in modern life, such as a considerable amount of communication occurring in human relationships through mobile communication terminals.

As such, the mobile communication terminal is equipped with various functions, and users can use various functions and services in addition to voice calls. Therefore, users operate the mobile communication terminal more frequently and spend time according to the operation of the terminal in daily life. For students, the operation of the terminal in important situations, such as school classes or office workers, has been an obstacle to class or meetings. As a result, when it is necessary to prohibit the use of the mobile communication terminal in a specific place, the user solved the problem by inviting users to turn off the power of the terminal or refrain from using the terminal.

However, the method of prohibiting the use of the existing mobile communication terminal has a problem that is difficult to be made entirely without recommending to the user or without the user's will. In addition, a mandatory method of using a mandatory device such as school class or test, such as confiscating a mobile communication terminal for a predetermined time or confirming use thereof, is used. This method causes a problem of manpower and time wastage, and also causes a problem of inconvenience to the terminal users.

The present invention has been made to solve the above problems, and when it is necessary to prohibit the use of a mobile communication terminal to a specific place or a specific user, it is possible to limit the operation of the target terminals collectively through the administrator terminal It is an object to provide a method and system.

In addition, it is another object to allow the user to go through the consent process of the operation of the mobile communication terminal is limited, and to later be able to unlock through the password for reactivation of the mobile communication terminal.

Other objects and advantages of the invention will be described below and will be appreciated by the embodiments of the invention. Furthermore, the objects and advantages of the present invention can be realized by means and combinations indicated in the appended claims.

In order to achieve the above object, the mobile communication terminal according to the present invention is a mobile communication terminal having a wireless communication function, the operation is limited by the operation limiting means, which instructs the operation of the terminal from the operation limiting means; Signal receiving means for receiving the lock instruction signal and the password setting information; A lock control application for limiting the operation of the mobile communication terminal is installed, the password is set according to the password setting information received through the signal receiving means, the operation of the terminal is restricted according to the lock indication signal, the operation is restricted A lock control means for receiving a password from the user and canceling the operation restriction in the case where the password is equal to the set password; And input means for receiving a password for releasing the restriction from the user to the terminal in the restricted operation state.

According to another aspect of the present invention, a device having a wireless communication function and limiting the operation of another mobile communication terminal, the signal transmitting means for transmitting a lock instruction signal and password setting information indicating an operation restriction of the terminal to the mobile communication terminal; ; Application providing means for providing a lock control application when the lock control application capable of limiting operation is not installed in the mobile communication terminal; There is provided an apparatus for limiting operation of a mobile communication terminal, including: management control means for receiving input of a lock instruction signal from a manager and a password of password setting information.

According to another aspect of the present invention, a method for providing a service for limiting the operation of a mobile communication terminal, comprising: (a) transmitting a lock instruction signal and password setting information indicating an operation restriction of a mobile communication terminal in an operation limiting means; step; (b) a mobile communication terminal receiving a signal from the operation limiting means, receiving a consent signal according to the operation limitation from a user; And (c) the mobile communication terminal receiving the consent signal, setting a password in the lock control application installed according to the received password setting information and limiting the operation of the terminal according to the lock indication signal. A limited service provision method is provided.

According to another aspect of the present invention, a system for providing a service for limiting the operation of the mobile communication terminal, transmitting a lock instruction signal and password setting information indicating the operation restriction of the terminal to the mobile communication terminal, If the lock control application is not installed in the mobile communication terminal, provides a lock control application, the operation limiting means of the mobile communication terminal receiving the lock instruction signal transmission and password setting information from the administrator, and the operation restriction Receiving a lock instruction signal and password setting information indicating the operation restriction of the terminal from the means, and a lock control application capable of limiting the operation of the mobile communication terminal is installed and a password is set according to the received password setting information, Depending on the signal, the operation of the terminal is limited. , The mobile communication terminal of the operation limit service providing system including a mobile communications terminal to disable the same when the operation limit is provided as compared with the password set by receiving a password from the user in the limited operating conditions.

According to the present invention, in the mobile communication network system, it is possible to collectively restrict the operation of the mobile communication terminals of a specific place or a specific object through a management terminal, so that the use of the terminal for a certain time such as a school class or a test should be prohibited. It provides an effect that can limit the operation of the terminal quickly, efficiently and forcibly.

In addition, in order to restart the operation after the operation is limited, it is possible to immediately restart by inputting the password set by the administrator provides an effect for the convenience of users. In addition, by limiting the operation after obtaining the consent procedure of the terminal owner, it also provides an effect to prevent malicious operation restrictions.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the specification and claims should not be construed as having a conventional or dictionary meaning, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention. Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

1 is a diagram schematically illustrating a configuration of a system for providing a service limit service for a mobile communication terminal according to an embodiment of the present invention.

Referring to FIG. 1, an operation limiting service providing system of a mobile communication terminal according to the present invention includes an operation limiting device 100 capable of limiting operations of the mobile communication terminals 200, and an operation limiting device 100. Mobile communication terminals 200 which are limited in operation by the mobile terminal 200 and the content server 300 in which the lock control application is stored are connected through the mobile communication network. In addition, the operation limiting device 100 may be connected to the mobile communication terminal 200 through a direct connection means for wireless communication.

The operation limiting apparatus 100 serves to limit the operation of the mobile communication terminals 201, 202, and 203 in a specific region or a specific target. To this end, a password is set in the lock control application that can limit the operation of the mobile communication terminal 200, and a process of transmitting the lock indication signal to the mobile communication terminal 200 is performed. Alternatively, when the lock control application is installed in the mobile communication terminal 200, a process of transmitting the password setting information and the lock instruction signal to the mobile communication terminal 200 is performed.

The mobile communication terminal 200 is limited in the operation and function operation of the terminal according to the instruction of the operation limiting device 100. That is, upon receiving the lock control application and the lock instruction signal from the operation limiting device 100, the lock control application is installed and the lock function of the application is activated according to the lock instruction signal, thereby limiting the operation of the terminal. Alternatively, when the lock control application is installed, the password setting information is received from the operation limiting device 100 together with the lock instruction signal and the password setting information is received according to the password setting information received by the installed lock control application. The lock function of the application is activated according to the lock indication signal, thereby limiting the operation of the terminal. At this time, the installation of the lock control application or the operation restriction of the terminal is made after receiving a consent signal from the user. In addition, the terminal operation may be unlocked by receiving a password corresponding to the password information set by the operation limiting device 100 from a user. In addition, when a password is directly received from the operation limiting device 100, the operation restriction may be canceled by comparing with the set password.

The content server 300 maintains a lock control application installed in the mobile communication terminal to limit the operation of the terminal and to release the restricted function again. The lock control application may set a password, and performs a process of releasing an operation restriction upon receiving the same password as the set password information. In addition, the content server 300 may provide the lock control application under storage management to the operation limiting device 100, and limit the direct operation according to a request from the operation limiting device 100. The lock control application may be transmitted to 200.

The mobile communication network is connected to the mobile communication terminals 200, the content server 300, the operation limiting device 100, and the like, and performs connection and communication through a mobile communication network system. The mobile communication network and the system may be adopted in various ways, and the lock control application, the lock indication signal, the password setting information, etc. may be transmitted or provided by being attached to a short message service (SMS) or a multimedia messaging system (MMS). have.

The direct connection means directly connects the operation limiting device 100 with the mobile communication terminals 200 to limit the operation. The direct connection means may transmit an indication signal or the like to the mobile communication terminals 201, 202, 203 to limit the operation directly from the operation limiting device 100 without passing through the mobile communication network. As the direct connection means, for example, short range communication means, RF (Radio Frequency) communication means, Bluetooth communication means, infrared communication means or the like can be used. When the direct connection means is used, when the mobile communication terminal 200 passes through the gate in which the operation limiting device 100 is installed, the operation of the terminal may be limited.

2 is a block diagram illustrating a functional configuration of an operation limiting apparatus according to an embodiment of the present invention.

Referring to FIG. 2, the operation limiting apparatus 100 according to the present invention includes a signal transmitting means 150, an application providing means 160, a management control means 170, and various signals and information 180. By transmitting to the mobile communication terminal 200 serves to limit the operation of the terminal. The signal transmitting means 150 transmits the lock instruction signal 181 and the password setting information 182 indicating the operation restriction of the terminal to the mobile communication terminal 200. The application providing means 160 provides the lock control application 183 data to the mobile communication terminal when the lock control application 183 capable of limiting the operation of the terminal is not installed in the mobile communication terminal 200. It plays a role to be installed in the terminal. The signal transmitting means 150 and the application providing means 160 transmit signals and data to a mobile communication terminal through a mobile communication network system or a direct access means. The management control unit 170 performs a role of receiving a lock indication signal transmission l or not and a password of password setting information from an administrator. Through this, the administrator may set the mobile communication terminal 200 to be limited to the operation, instructs operation restriction, and may set a password for releasing the operation of the restricted terminal.

3 is a block diagram showing a functional configuration of an operation limiting apparatus according to another embodiment of the present invention.

Referring to FIG. 3, the operation limiting apparatus 100 ′ according to another embodiment may include an application transmitting means 110, an installation determining means 120, a password setting means 130, a lock instruction signal transmitting means 140, and a movement. Means for accessing a communications network system and performing mobile communications.

The application transmitting means 110 transmits a lock control application that can limit the operation of another mobile communication terminal to a desired mobile communication terminal or a plurality of mobile communication terminals. The application transmission means 110 may be provided or stored by the lock control application provided by the content server 300. If the lock control application is stored, direct transmission to the mobile communication terminal 200 to limit the operation, and if not stored instructs the transmission to the desired mobile communication terminal 200 through the content server 300. do.

The installation determining means 120 determines whether the lock control application is installed in the mobile communication terminal 200 to limit the operation. If the determination result is not installed, the lock control application is transmitted through the application transmission means 110.

After the operation of the mobile communication terminal 200 is limited, the password setting means 130 sets a password for releasing the operation restriction. When the same password as the password set through the inputted in the mobile communication terminal 200 is limited, the lock state is released to allow the mobile communication terminal to operate normally. Here, the password may be, for example, a general string of letters and numbers. As another example of the password, a combination of keypad input signals of the terminal may be used. In addition, the password setting means 130 is divided into an installation mode 131 and a non-installation mode 132, the password setting process is performed. The installation mode 131 proceeds when it is determined that the lock control application is installed in the installation determination unit 120. The installation mode 131 transmits a password provided from an administrator to the corresponding terminal to set a password for the application installed in the corresponding terminal. do. The non-installation mode 132 proceeds when it is determined by the installation determining means 120 that the lock control application is not installed, and transmits the password provided from the administrator to the unlocking application to be transmitted through the application transmission means 110. Process to set.

The lock indication signal transmission means 140 serves to transmit a lock indication signal to limit the operation to the mobile communication terminal 200 to limit the operation. The lock instruction signal activates the lock function of the lock control application installed in the corresponding mobile communication terminal to limit the operation of the terminal.

4 is a block diagram illustrating a functional configuration of a mobile communication terminal in which operation is limited according to an embodiment of the present invention.

Referring to FIG. 4, the mobile communication terminal 200 whose operation is restricted according to the instruction of the operation limiting apparatus 100 according to the present invention includes a lock control means 230, a signal receiving means 210, and an input means 220. It includes.

The signal receiving means 210 receives a lock control application, a lock instruction signal, password setting information, and the like through a mobile communication network or a direct access means, and serves to provide the lock control means 230. The signal receiving unit 210 includes a lock instruction signal receiving unit 211, a password setting information receiving unit 212, and a data receiving unit 213. The lock instruction signal receiving unit 221 serves to receive the lock instruction signal from the operation limiting device 100 and provide it to the lock control means 230. The data receiver 213 serves to provide the lock control application 230 with the lock control application provided by the operation limiting device 100 or the content server 300. The password setting information receiving unit 212 receives the password setting information from the operation limiting device 100 and provides the lock control means 230 when the lock control application is installed in the lock control means 230. Do this.

The input means 220 receives a consent signal or a password from a user using a keypad of a mobile communication terminal and provides the lock control means 230 to the lock control means 230. The input means 220 includes a consent signal input unit 221, a password input unit 222 and the like. The consent signal input unit 221 serves to receive a consent signal for confirming whether or not the user agrees according to the consent request from the lock control means 230. The password input unit 222 serves to receive a password for releasing an operation restriction of a mobile communication terminal whose operation is limited.

The lock control means 230 receives and installs a lock control application that can limit the operation of the terminal, and receives the lock instruction signal and password setting information received from the operation limiting device 100 through the installed lock control application and from the user. It controls the operation of the terminal according to the input consent signal and password.

The lock control means 230 includes a consent processor 231, a password setting processor 232, an operation restriction processor 233, a restriction release processor 234, and an application installation processor 235.

The consent processing unit 231 receives and installs the lock control application, or performs a process of receiving a consent signal from a user and then proceeding with processing when limiting the operation of the terminal according to the lock indication signal. Of course, when the consent signal is not received, the application installation or operation limitation processing is not performed. The consent processing unit 231 performs a role of receiving a lock agreement signal from the input means 220 to allow operation restriction from the user when the operation of the terminal is restricted and providing the operation agreement processing unit 233 to be described later.

The password setting processor 232 plays a role of setting a password in a lock control application installed according to the password setting information received from the signal receiving means 210.

The operation limit processing unit 233 serves to limit the operation of the mobile communication terminal through an application installed according to the lock instruction signal received from the signal receiving means 210. In this case, the consent processing unit 231 proceeds after consent processing is performed.

The restriction release processing unit 234 compares the password inputted through the input means 220 with the password set by the password setting processing unit 232 in a state where the operation of the terminal is restricted, and determines whether the same is the same. In this case, it is to release the operation restriction and continue to limit the operation if it is not the same. In addition, even if a password is received from the operation limiting means 100 through the signal receiving means 210 instead of the input means 220 in the state in which the limit release processing unit 234 is restricted in operation, the set password is set. It may also serve to lift the operation limit in the same case compared to.

When the lock control application is not installed in the terminal, the application installation processing unit 235 receives and installs the lock control application through the signal receiving means. At this time, of course, it may be provided directly from the operation limiting device 100, or may be provided from the content server 300.

5 is a flowchart illustrating a procedure of a method for providing operation restriction service of a mobile communication terminal according to an embodiment of the present invention.

This embodiment with reference to FIG. 5 is a procedure that proceeds when the lock control application is installed in the mobile communication terminal to limit the operation.

First, a lock instruction signal and password setting information are received from the operation limiting device. In this case, a signal may be received through a mobile communication network system, or a signal may be received through a direct connection means. When receiving a signal through the mobile communication network, for example, it may receive a signal via SMS or MMS. In addition, when the signal is received through the direct access means, for example, when passing through the classroom entrance gateway in which the operation limiting device is installed, the signal may be received by the terminal passing through the near field communication means.

After receiving the password setting information and the lock instruction signal, the mobile communication terminal performs lock agreement processing. The lock consent process is a procedure of consent processing to the user of the mobile communication terminal whether to limit the operation of the mobile communication terminal according to the lock indication signal received from the operation limiting device.

If the consent process is not received from the user as a result of the consent process, or if a signal for rejecting the consent is received, the procedure is terminated without proceeding with the subsequent operation restriction process. (3)

On the other hand, when the consent signal is received from the user in step (3), the procedure for setting the password according to the password setting information received in the lock control application pre-installed in the mobile communication terminal proceeds.

Thereafter, the lock function of the installed lock control application is activated according to the received lock indication signal, thereby causing the operation of the terminal to be locked. Through this, the function and operation of the terminal are limited in operation and the user cannot use or operate the terminal.

Next, a procedure of receiving a password for canceling the operation restriction is performed from the user in the state in which the operation of the terminal is restricted. In this case, an important time to prohibit the use of the terminal such as a school class or a meeting has passed, and the mobile communication terminal user is informed of the password set in advance by the administrator of the operation limiting device in order to release the terminal. In this case, the password may be directly received by the operation restriction device to receive the password. In this case, when the class exits the classroom through the operation limit device installed at the gate after the class is finished, the password is directly received from the device.

If the password is input, it is determined whether or not the password is set in the lock control application, and if it does not match, the operation of the terminal is continuously restricted.

On the other hand, when the input password and the set password match, the operation restriction of the mobile communication terminal is released, and normal use and operation of the terminal can be performed again.

6 is a flowchart illustrating a procedure of a method for providing an operation restriction service of a mobile communication terminal according to another embodiment of the present invention.

Referring to FIG. 6, first, a content control server stores a lock control application that can limit the operation of a mobile communication terminal.

The operation limiting device is provided with a lock control application from a content server.

The operation limiting device sets a password (password), which is an unlock signal, to the provided lock control application. The lock release signal (password) is determined by an administrator who wants to limit the operation to a mobile communication terminal of a specific region or a specific target by using an operation restriction device.

The operation limiting device transmits the lock indication signal to the target mobile communication terminal which desires to limit the operation together with the password-set application.

Upon receipt of the lock indication signal with the application, the mobile communication terminal proceeds to a process of consenting to the user of the mobile communication terminal whether to restrict the operation of the mobile communication terminal according to the lock indication.

If a consent signal is not received from the user as a result of consent processing, or if a signal for rejecting the consent is received, the procedure is terminated without proceeding with the subsequent operation restriction processing (15, F).

On the other hand, if the consent signal is received from the user in the step (15), the procedure of installing the lock control application received in the mobile communication terminal proceeds.

After the lock control application is installed in the mobile communication terminal, the lock function of the installed lock control application is activated according to the received lock indication signal, thereby locking the operation of the terminal. Through this, the functions and operations of the terminal are limited in operation, and the user cannot use or operate the terminal.

In the state in which the operation of the terminal is restricted, a procedure for receiving a password for canceling the operation restriction is performed from the user. In this case, the important time to prohibit the use of the terminal, such as school classes or meetings, has passed, and the mobile communication terminal user has been informed of the unlock signal (password) set in advance by the administrator of the operation limitation device in order to release the terminal. (18)

If a password is input from the user, it is determined whether or not the password is set in the lock control application, and if it does not match, the operation of the terminal is continuously restricted.

On the other hand, when the input password and the set password match, the operation restriction of the mobile communication terminal is released, and the normal terminal can be used and operated again.

7 is a flowchart illustrating a procedure of a method for providing an operation restriction service of a mobile communication terminal according to another embodiment of the present invention.

Referring to FIG. 7, first, a content control server stores a lock control application that can limit the operation of a mobile communication terminal.

In the operation limiting device, a procedure for restricting the operation of a target mobile communication terminal is performed. First, a procedure of receiving a lock release signal from an administrator using the operation limiting device and generating the password is performed.

The operation limiting device then sends the generated password to the content server. In this case, along with the password information is transmitted including the information of the mobile communication terminals to be limited to the operation.

The content server, which has received the password information and the terminal information, performs a process of setting a password in the lock control application stored. Through this, in the lock control application, the password generated by the operation limitation device is set as information for releasing the lock after the operation of the mobile communication terminal is locked.

The content server transmits the application having the password set to the mobile communication terminal, and transmits the received terminal information to the corresponding mobile communication terminals using the destination address information.

In addition, the operation limiting apparatus transmits a lock instruction signal to the mobile communication terminals to which the operation is to be restricted.

Through this, the mobile communication terminal receives the application with the password set from the content server and receives the lock instruction signal from the operation limiting device. The subsequent procedure proceeds to the same procedure as that from the step (14) of FIG. . Therefore, the description of the subsequent procedure will be omitted. The present embodiment is a method in which the operation limiting device may transmit data to a target mobile communication terminal directly from the content server when the application is not provided by the content server or the application does not exist in the operation limiting device. .

The terms or words used in this specification and claims are not to be construed as limiting in their usual or dictionary meanings, and the inventors will appropriately define the concept of terms in order to best describe their invention. It should be interpreted as meaning and concept corresponding to the technical idea of the present invention based on the principle that it can.

Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

The following drawings, which are attached to this specification, illustrate exemplary embodiments of the present invention, and together with the detailed description of the present invention serve to further understand the technical spirit of the present invention, the present invention includes matters described in such drawings. It should not be construed as limited to.

100: operation limiting device 200: mobile communication terminal

300: content server

Claims

As a mobile communication terminal having a wireless communication function, the operation is limited by the operation limiting means,

Receiving means for receiving lock indication information indicating operation limitation of the terminal from the operation limitation means;

A lock control application for limiting the operation of the mobile communication terminal is installed, the operation of the terminal is limited according to the lock indication information, and lock control means for receiving the unlocking information in the restricted operation to release the operation restriction; Mobile communication terminal.

The method of claim 1,

The lock indication information includes a lock indication signal and password setting information, and the lock control means sets a password according to the lock indication information.

The method of claim 2,

And an input means for receiving a password for releasing the restriction from the user to the terminal in the restricted operation state,

The lock control means receives a password from a user and compares the set password with the mobile terminal, characterized in that to release the operation restrictions.

The method according to claim 1 or 2,

The lock control means,

If the lock control application is not installed, the mobile communication terminal characterized in that the lock control application is provided through the receiving means to install.

The method according to claim 1 or 2,

The receiving means,

And receiving information from the operation limiting means through a mobile communication network system or a direct access means.

The method of claim 5, wherein

The receiving means,

The mobile communication terminal, characterized in that for receiving information through a short message service (SMS) or multimedia messaging system (MMS) of the mobile communication network system.

The method of claim 5, wherein

The receiving means,

And a near field communication unit, a radio frequency (RF) communication unit, a Bluetooth communication unit, and an infrared communication unit as the direct connection unit.

A device having a wireless communication function and limiting the operation of another mobile communication terminal,

Transmitting means for transmitting locking indication information indicating an operation restriction of the terminal to the mobile communication terminal;

Application providing means for providing a lock control application when the lock control application capable of limiting operation is not installed in the mobile communication terminal; And

And management control means for controlling whether the transmission means is received from the administrator whether the lock instruction information is transmitted or not and the lock release information is transmitted.

The method of claim 8,

The transmission means,

A device for limiting operation of a mobile communication terminal, characterized in that to transmit lock indication information to the mobile communication terminal through a mobile communication network system or a direct access means.

A method of providing a service for limiting the operation of a mobile communication terminal,

(a) transmitting lock indication information indicating operation restriction of the mobile communication terminal by operation limiting means; And

(b) limiting the operation of the mobile communication terminal by the installed lock control application, which has received the lock instruction information from the operation limiting means.

The method of claim 10,

The lock instruction information includes a lock instruction signal and password setting information.

Step (b) is,

And setting a password according to the lock indication information when the operation is restricted.

The method of claim 10,

After step (b),

(c) releasing an operation restriction of the mobile communication terminal when receiving an unlock signal in a state in which operation is restricted.

The method of claim 10 or 11,

Step (a) is,

And a lock control application for controlling the operation of the mobile communication terminal when the lock instruction information is transmitted to be installed in the received mobile communication terminal.