JP2008097485A - Mobile terminal setting system, mobile terminal setting method and mobile terminal setting program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mobile terminal setting system, a control terminal, a mobile terminal, a mobile terminal setting method, a control terminal program and a mobile terminal setting program, allowing user setting without occupying the mobile terminal, and capable of preventing that the user setting is performed by a free change of the user setting, spoofing or the like in the mobile terminal. <P>SOLUTION: In this mobile terminal setting system, a mobile terminal 100 for a protector converts user setting information showing contents of the user setting to a mobile terminal 110 for a child into mail body data, performs encryption by use of a telephone number of the mobile terminal 100 for the protector, and transmits it to the mobile terminal 110 for the child. The mobile terminal 110 for the child decrypts the received mail body by use of the telephone number of the mobile terminal 100 for the protector, converts it into the user setting information, and applies the user setting to the mobile terminal 110 for the child. The setting performed on the basis of the user setting information cannot be changed in the mobile terminal 110 for the child. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a portable terminal setting system, a control terminal, a portable terminal, a portable terminal setting method, a control terminal program, and a portable terminal setting program for setting management items such as user setting items of a portable terminal and a telephone directory.

  In recent years, mobile terminals for children have been released. In general, a device for restricting the functions that can be used has been devised in portable terminals for children. For example, two passwords can be set, and a password for a child and a password for a guardian are distinguished. In addition, the function related to the security function is equipped with a function that can be unlocked only by a password for a guardian and cannot be unlocked by a child password.

  A method for sharing telephone directory information in a mobile phone has been proposed (see, for example, Patent Document 1). In Patent Document 1, a mobile phone that has received new registration or change of phone book information creates and transmits an e-mail containing the information, and the mobile phone that receives the mail performs settings according to the information. It is described.

  In addition, a mobile terminal has been proposed that can be operated remotely by operating various setting functions in accordance with received emails, thereby improving operability (see, for example, Patent Document 2). Patent Document 2 describes that when a mobile terminal receives an automatic AP activation request mail requesting an automatic operation, it activates the corresponding AP and sets designated information on lock setting, alarm setting, and the like. ing.

JP 2004-112119 A (paragraphs 0029-0040) JP 2002-33822 A (paragraphs 0029-0033, 0041-0045)

  When two passwords can be set, there is a problem that the child may change the setting freely if the child knows the password for the guardian. For example, a child can arbitrarily change user settings such as usage restrictions of his / her mobile terminal. In addition, there is a problem that the guardian must occupy the child portable terminal while performing the user setting of the child portable terminal.

  Further, if the methods described in Patent Documents 1 and 2 are used, it is possible to change the setting of the mobile terminal from a remote location or to perform a remote setting for a new setting. However, there is a possibility that a child terminal is set by a person other than the guardian by so-called impersonation or the setting contents are wiretapped or altered.

  Therefore, the present invention enables user setting without occupying the mobile terminal, and can prevent the user setting from being freely changed or impersonated by the mobile terminal. It aims at providing a portable terminal setting system, a control terminal, a portable terminal, a portable terminal setting method, a control terminal program, and a portable terminal setting program.

  A mobile terminal setting system according to the present invention includes a mobile terminal (for example, a mobile terminal for children 110) and a control terminal (for example, a mobile terminal for parents 100) for remotely setting the mobile terminal. Encryption means for encrypting the setting information indicating the setting contents of the setting item using control terminal identification information capable of identifying the control terminal, and carrying the setting information encrypted by the encryption means via the communication network The mobile terminal includes a decoding means for decoding the setting information received from the control terminal based on the control terminal identification information stored in advance, and the setting information decoded by the decoding means. And setting means for setting the mobile terminal based on the setting means, and the setting means performs control for prohibiting setting of setting items that match a predetermined exclusion condition. And features.

  The transmission unit may transmit an electronic mail including the encrypted setting information, and the decryption unit may decrypt the setting information included in the received electronic mail. According to such a configuration, the mobile terminal can be set using the electronic mail function.

  The setting means may cancel the exclusion condition when a predetermined condition is satisfied. According to such a configuration, it is possible to set a management item that matches the exclusion condition even when the control terminal cannot be used.

  The setting means sets the setting prohibition information indicating that setting of the setting item is prohibited in accordance with the setting item being set based on the setting information, and the setting prohibition information is set as an exclusion condition. Based on this, control for prohibiting setting of setting items may be performed. According to such a configuration, it is possible to prevent the management item set based on the setting information from being set in the mobile terminal.

A control terminal according to the present invention is a control terminal that remotely sets a setting item of a portable terminal, and uses setting information indicating the setting contents of the setting item of the portable terminal using control terminal identification information that can identify the control terminal. It is characterized by comprising encryption means for encryption, and transmission means for transmitting the setting information encrypted by the encryption means to the portable terminal via a communication network.

  The portable terminal according to the present invention is a portable terminal whose setting items are remotely set by the control terminal, and the portable terminal receives the setting received from the control terminal based on the control terminal identification information that can identify the control terminal stored in advance. A decoding unit that decodes the information; and a setting unit that sets the mobile terminal based on the setting information decoded by the decoding unit. The setting unit matches a predetermined exclusion condition. Control is performed to prohibit the setting of.

  The mobile terminal setting method according to the present invention is a mobile terminal setting method in which the control terminal remotely sets the mobile terminal, and the control terminal can identify the setting information indicating the setting contents of the setting items of the mobile terminal. An encryption step for encrypting using the control terminal identification information, a transmission step for transmitting the setting information encrypted in the encryption step to the mobile terminal via the communication network, and the mobile terminal storing in advance A decoding step for decoding the setting information received from the control terminal based on the control terminal identification information, and a setting step for setting the portable terminal based on the setting information decoded in the decoding step by the portable terminal The mobile terminal performs control for prohibiting setting of setting items that match a predetermined exclusion condition in the setting step. To.

  A control terminal program according to the present invention is a control terminal program installed in a control terminal for remotely setting a setting item of a portable terminal, and setting information indicating setting contents of the setting item of the portable terminal is transmitted to the control terminal. Encryption processing for encrypting using control terminal identification information that can be identified, and transmission processing for transmitting setting information encrypted by the encryption processing to a mobile terminal via a communication network .

  A portable terminal setting program according to the present invention is a portable terminal setting program installed in a portable terminal whose setting items are remotely set by a control terminal, and includes control terminal identification information that can identify a control terminal stored in advance in a computer. Based on the setting process, the decoding process for decoding the setting information received from the control terminal and the setting process for setting the mobile terminal based on the setting information decoded by the decoding process are executed in advance. The present invention is characterized in that a process for prohibiting setting of setting items that match a predetermined exclusion condition is executed.

  According to the present invention, there is an effect that management items of a mobile terminal can be set without occupying the mobile terminal. Moreover, there is an effect that the management items set based on the setting information transmitted by the control terminal can be excluded from the setting target and set.

Embodiment 1 FIG.
Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an explanatory diagram showing an outline of processing of the portable terminal setting system according to the present invention. The mobile terminal setting system shown in FIG. 1 includes a guardian mobile terminal 100 and a child mobile terminal 110.

  The guardian mobile terminal 100 performs user settings for the child mobile terminal 110. User settings include, for example, restriction on outgoing calls other than the phone book for restricting outgoing calls to phone numbers not registered as phone book data of the mobile terminal, or restricting outgoing calls from functions other than the phone book. This indicates that management items that can be set by the user, such as Internet connection restriction for restricting the Internet connection to the Web site, mail transmission / reception restriction, and phone book editing restriction, are set. In addition, when the guardian mobile terminal 100 performs the user setting of the child portable terminal 110, for example, in the guardian portable terminal 100, the setting content (user setting content) of the management item of the child portable terminal 110 is input. It is to be. The guardian mobile terminal 100 converts user setting information indicating the user setting contents into mail data and transmits the mail data to the child portable terminal 110 via a communication network such as the Internet.

  The child portable terminal 110 analyzes the mail received from the guardian portable terminal 100 and performs user settings based on the analysis result.

  Here, with reference to FIG. 1, the outline | summary of a process of a portable terminal setting system is demonstrated. First, the telephone number of the guardian mobile terminal 100 is registered in the child portable terminal 110 by the guardian or the like (step S100).

  A guardian who is an operator performs user settings such as outgoing call restriction and internet connection restriction for the child portable terminal 110 other than the telephone directory in the guardian portable terminal 100. When the setting is completed, the guardian mobile terminal 100 stores the user setting information for the child mobile terminal 110 in the memory (step S101).

  The guardian's portable terminal 100 converts the user setting information into mail text data. Then, the mail body data is encrypted using the phone number of the guardian's portable terminal 100 as an encryption key and set in the mail body. Further, a specific value (character string) indicating that the mail is a user setting mail is set as the mail title, the mail address of the child mobile terminal 110 set by the guardian is set as a destination, and the Internet or the like It transmits via a communication network (step S102).

  When receiving the mail, the child portable terminal 110 compares the title with a specific value (character string) indicating that the mail is for user setting in order to check whether the mail is for user setting. When the e-mail title is a specific value (character string), the child mobile terminal 110 analyzes the e-mail body by decrypting it using the phone number of the guardian mobile terminal 100 as a decryption key, and converts it into user setting information. (Step S111).

  Based on the user setting information, the child mobile terminal 110 applies the user settings made by the guardian mobile terminal 100 (transmission restrictions other than the phone book, Internet connection restrictions, etc.) to the child mobile terminal 110 (step S112). . As will be described later, it is assumed that the settings made based on the user setting mail transmitted by the guardian mobile terminal 100 cannot be changed on the child mobile terminal 110.

  Next, the configuration will be described. Specifically, the guardian mobile terminal 100 and the child mobile terminal 110 are realized by a terminal such as a mobile phone that operates according to a program. FIG. 2 is a block diagram illustrating an example of the guardian mobile terminal 100 and the child mobile terminal 110. In the present embodiment, the guardian mobile terminal 100 and the child mobile terminal 110 have the same configuration. As shown in FIG. 2, the guardian mobile terminal 100 and the child mobile terminal 110 include an antenna 201, a wireless unit 202, a control unit 203, an LCD display unit 206, an operation unit 207, and an audio processing unit 208. And a receiver 209 and a microphone 210.

  The guardian mobile terminal 100 and the child mobile terminal 110 communicate with a base station (not shown) via the radio unit 202 and the antenna 201 under the control of the control unit 203. The guardian mobile terminal 100 and the child mobile terminal 110 can communicate with each other via a base station and a communication network. The radio unit 202 selects a signal frequency to be received from the signal received by the antenna 201, performs frequency conversion, amplifies and demodulates, and outputs the received data to the control unit 203.

  The control unit 203 includes a CPU 204, a memory 205, a data encryption processing unit 211, and other control circuits (not shown). The control unit 203 processes the received data and outputs an audio signal to the audio processing unit 208.

  The audio processing unit 208 converts the audio signal into an analog signal, and the receiver 209 outputs the audio. The audio processing unit 208 converts the audio input from the microphone 210 into a digital signal.

  The control unit 203 processes the digital signal converted by the audio processing unit 208 into transmission data. Radio section 202 modulates transmission data, amplifies it as a carrier wave of a prescribed frequency, and transmits it via antenna 201.

  In addition, the control unit 203 monitors the operation unit 207, detects and determines a user operation, and performs processing based on the operation.

  The LCD display unit 206 performs various displays under the control of the control unit 203.

  The memory 205 stores data such as a program for the control unit 203 to control the portable terminal, a phone book, and mail. For example, the memory 205 stores a program for realizing the user setting function of the own terminal. Further, the memory 205 of the guardian mobile terminal 100 stores a program for realizing a user setting function (hereinafter referred to as a child user setting function) of the child mobile terminal 110.

  The data encryption processing unit 211 encrypts the data using the designated encryption key (in this example, the telephone number of the guardian mobile terminal 100), and decrypts the encrypted data using the specific key.

  In the present embodiment, the transmission means is realized by the antenna 201, the radio unit 202, and the control unit 203 of the guardian mobile terminal 100. The setting means is realized by the antenna 201, the radio unit 202, and the control unit 203 of the child portable terminal 110.

  Next, the operation of the present embodiment will be described with reference to the drawings. FIG. 3 is a flowchart illustrating an example of a process for performing user setting of the child mobile terminal.

  Step S300 is a description of the control performed by the child portable terminal 110. For example, when a guardian or the like performs an operation of previously registering the telephone number of the guardian mobile terminal 100 in the child mobile terminal 110, the control unit 203 of the child mobile terminal 110 stores the protector mobile terminal in the memory 205. 100 telephone numbers are registered (step S300). Note that the telephone number of the guardian mobile terminal 100 (the guardian telephone number) cannot be referred to in the child mobile terminal 110 as a countermeasure against malicious mail such as spoofing. For example, in the child mobile terminal 110, the registered parent telephone number may be displayed as “*” or the like.

  Steps S301 to S305 are descriptions of the control performed by the guardian mobile terminal 100.

  When a guardian who is an operator performs an operation for starting a user setting function (child user setting function) for the child portable terminal 110 in the guardian portable terminal 100, the control unit 203 displays the child setting. Start the user setting function. Then, the control unit 203 causes the LCD display unit 206 to display a user setting screen (step S301).

  Here, the child user setting function may be realized as a program by JAVA (registered trademark) or the like. In this case, for example, the child user setting function is downloaded via a network such as the Internet, registered in the guardian mobile terminal 100, and executed. Therefore, the guardian mobile terminal 100 is not limited to the mobile terminal in which the child user setting function is stored in the memory 205 in advance at the time of purchase, but has a function of executing a program such as JAVA (registered trademark), for example. A portable terminal or a personal computer can be used.

  The guardian operates the guardian mobile terminal 100 and performs user settings such as outgoing call restrictions and Internet connection restrictions other than the telephone directory as user settings of the child mobile terminal 110 (step S302).

  When the process of step S302 is completed, the control unit 203 converts the user setting of the child portable terminal 110 set in step S302 into mail body data so that it can be set in the mail body. Then, the data encryption processing unit 211 encrypts the mail body data using the telephone number of the guardian mobile terminal 100 as an encryption key, and sets it in the mail body (step S303). For example, the e-mail text data is encrypted by performing an operation using a telephone number on the e-mail text data, thereby preventing eavesdropping and falsification of the e-mail text data. Further, for example, information that can identify a guardian such as a user ID may be encrypted by performing a calculation using a telephone number. In addition, a specific value (a character string (for example, a character string of “user setting”)) is set as the subject of the mail to indicate that the mail is for user setting. Further, the child portable terminal 110 which is the transmission destination set by the guardian is set as the mail destination (step S304).

  The control unit 203 transmits a user setting mail to the base station via the radio unit 202 and the antenna 201. The control unit 203 stores the transmitted user setting mail in the memory 205 (step S305).

  Steps S <b> 306 to S <b> 310 are descriptions of control performed by the child portable terminal 110.

  The control unit 203 of the child portable terminal 110 stores the mail received via the antenna 201 and the wireless unit 202 in the memory 205 (step S306).

  The control unit 203 compares the received mail title with a specific value (character string) set in the user setting mail to determine whether the mail is a user setting mail (step S307). If it is not a user setting mail, the control unit 203 executes normal mail reception control (step S311). If it is a user setting mail, the control after step S308 is executed.

  In step S308, the data encryption processing unit 211 decrypts and analyzes the mail text of the user setting mail using the phone number of the guardian mobile terminal 100 as a decryption key. And the control part 203 acquires the user setting information set by the portable terminal 100 for guardians (step S308). For example, the control unit 203 extracts user setting information from the mail text analyzed by the data encryption processing unit 211.

  Based on the user setting information, the control unit 203 performs user settings such as outgoing call restrictions and Internet connection restrictions other than the telephone directory in the child portable terminal 110 (step S309). When the change of the user setting is completed, the control unit 203 displays a pop-up notifying the completion on the LCD display unit 206 (step S310).

  Here, the setting made based on the user setting mail transmitted by the guardian mobile terminal 100 cannot be changed in the child mobile terminal 110. For example, a setting change enable / disable flag is provided for each management item such as outgoing restrictions other than the telephone directory and Internet connection restrictions. For example, when the user setting is performed in step S309, the control unit 203 of the child portable terminal 110 sets the setting change enable / disable flag corresponding to the management item set based on the user setting information to “not changeable”. For example, the control unit 203 of the child portable terminal 110 can execute the user setting function of the own terminal only for management items whose setting change enable / disable flag is not “change not possible”. In addition, it is an example of an exclusion condition that the user setting is performed on the child portable terminal 110 based on the user setting mail transmitted by the guardian portable terminal 100.

  When the guardian loses the guardian mobile terminal 100, for example, the user setting of the child portable terminal 110 made based on the user setting mail cannot be changed. Therefore, the child portable terminal 110 is provided with a function of resetting the user setting of the own terminal. Here, in order to prevent the child from using the reset function without permission, a password for using the reset function is set. For example, the reset function can be used only when a correct password is input. The password is, for example, an extremely long character string such as 16 digits or more that is longer than usual and feels troublesome to input. When the password is input and the user setting is reset, for example, the setting change enable / disable flag corresponding to all the setting items may be changed to “changeable”.

  As described above, according to the first embodiment, when the user setting is performed on the child portable terminal, the setting performed based on the user setting mail transmitted by the guardian portable terminal is The change can be made only on the basis of the user setting mail transmitted by the guardian's portable terminal, and the child cannot change it freely. Therefore, it is possible to prevent the user setting from being freely changed even if the child knows the password for the guardian.

  In addition, when performing user settings for a child mobile terminal, the child mobile terminal performs user settings in the guardian mobile terminal, and the child mobile terminal receives an email containing the user setting information and automatically Set user settings. Therefore, the user setting can be changed without the guardian occupying the child portable terminal.

  Further, the guardian mobile terminal encrypts and transmits the user setting information using the phone number of the guardian mobile terminal, and the child portable terminal transmits the received user setting information to the phone number of the guardian mobile terminal. Since the user setting is performed by decryption using, it is possible to prevent the user setting by impersonation or the like.

Embodiment 2. FIG.
Next, the case where the telephone directory data registered in the guardian mobile terminal is registered in the child mobile terminal will be described. FIG. 4 is a flowchart showing an example of processing for registering a phone book of a child mobile terminal.

  Step S400 is a description of the control performed by the child portable terminal 110. For example, when a guardian or the like performs an operation of registering the telephone number of the guardian mobile terminal 100 in the child portable terminal 110, the control unit 203 of the child portable terminal 110 stores in the memory 205 the guardian portable terminal 100. Is registered (step S400). Note that the telephone number of the guardian mobile terminal 100 (the guardian telephone number) cannot be referred to in the child mobile terminal 110 as a countermeasure against malicious mail such as spoofing.

  Steps S <b> 401 to S <b> 405 are descriptions of control performed by the guardian mobile terminal 100.

  When a guardian who is an operator performs an operation for displaying a list of phone book data (hereinafter referred to as a phone book list) on the guardian's portable terminal 100, the control unit 203 displays the phone book list. Is displayed on the LCD display unit 206 (step S401).

  The guardian operates the guardian mobile terminal 100 to select all the phone book data to be registered in the child handheld terminal 110 from the phone book list (step S402).

  When the process of step S402 is completed, the control unit 203 converts the phone book data registered in the child portable terminal 110 into mail body data so that it can be set in the mail body. Then, the data encryption processing unit 211 encrypts the mail text data using the telephone number of the guardian mobile terminal 100 as an encryption key, and sets it in the mail text (step S403). In addition, in order to indicate that the mail is for phone book registration, a specific value (character string) is set as the subject of the mail (Subject), and the child mobile terminal 110 that is the destination set by the guardian is set as the destination. Is set (step S404).

  The control unit 203 transmits a telephone directory registration mail to the base station via the wireless unit 202 and the antenna 201. The control unit 203 stores the transmitted telephone directory registration mail in the memory 205 (step S405).

  Steps S406 to S410 are descriptions of control performed by the child portable terminal 110.

  The control unit 203 of the child portable terminal 110 stores the mail received via the antenna 201 and the wireless unit 202 in the memory 205 (step S406).

  The control unit 203 compares the title of the received mail with a specific value (character string) set in the phone book registration mail to determine whether or not it is a phone book registration mail (step S407). . If it is not a phone book registration mail, the control unit 203 performs normal mail reception control (step S411). If it is a phone book registration mail, the control from step S408 is executed.

  In step S408, the data encryption processing unit 211 decrypts and analyzes the mail text of the phone book registration mail using the phone number of the guardian mobile terminal 100 as a decryption key. And the control part 203 acquires the telephone directory data (henceforth telephone directory information) selected by the portable terminal 100 for guardians (step S408). For example, the control unit 203 extracts phone book information from the mail text analyzed by the data encryption processing unit 211.

  The control unit 203 registers the phone book in the child portable terminal 110 based on the phone book information (step S409). The phone book registration is performed after the phone book data registered in advance in the child portable terminal 110 is deleted. For example, the control unit 203 may delete the phone book data registered in advance and register the phone book in step S409. For example, the guardian may operate the child portable terminal 110 in advance to delete the registered phone book data. When the phone book registration is completed, the control unit 203 displays a pop-up notifying the completion on the LCD display unit 206 (step S410).

  Here, when the phone book registration of the child mobile terminal 110 is performed based on the phone book registration mail transmitted by the guardian mobile terminal 100, the child phone terminal 110 cannot edit the phone book. For example, a phone book change enable / disable flag is provided, and the control unit 203 of the child mobile terminal 110 sets the phone book change enable / disable flag to “change not possible” when performing phone book registration in step S409. For example, the control unit 203 of the child portable terminal 110 can edit the phone book of its own terminal only when the phone book change enable / disable flag is not “change not possible”. Note that the user setting in the child mobile terminal 110 based on the phone book registration mail transmitted by the guardian mobile terminal 100 is an example of an exclusion condition.

  As described above, according to the second embodiment, when phone book registration is performed for a child mobile terminal, the phone book registration is performed based on the phone book registration mail transmitted by the guardian mobile terminal. The setting can be changed only based on the phone book registration mail transmitted by the guardian's portable terminal, and the child cannot change it freely. Therefore, it is possible to prevent the phone book registration from being changed freely even when the child has learned the password for the guardian.

  In addition, when performing phone book registration for a child mobile terminal, the phone book registration of the child mobile terminal is performed in the guardian mobile terminal, and the child mobile terminal receives an email containing the phone book information, Automatic phone book registration. Therefore, telephone book registration can be performed without the guardian occupying the child portable terminal.

  In addition, the mobile phone for the guardian transmits the phone book information encrypted using the phone number of the mobile phone for the guardian, and the mobile phone terminal for the child transmits the received phone book information to the phone number of the mobile phone for the guardian. Since the user setting is performed by decryption using, it is possible to prevent phone book registration due to impersonation or the like.

  The present invention can be applied to an application for setting a mobile terminal, and in particular, can be effectively applied to prevent a setting change by a user of the mobile terminal.

It is explanatory drawing which shows the outline | summary of a process of the portable terminal setting system by this invention. It is a block diagram which shows the example of the portable terminal for guardians, and the portable terminal for children. It is a flowchart which shows the example of the process which performs the user setting of the portable terminal for children. It is a flowchart which shows the example of the process which performs telephone directory registration of the portable terminal for children.

Explanation of symbols

100 Mobile terminal for parents 110 Mobile terminal for children

Claims (9)

A portable terminal and a control terminal for remotely setting the portable terminal;
The control terminal
Encryption means for encrypting the setting information indicating the setting content of the setting item of the mobile terminal using control terminal identification information capable of identifying the control terminal;
Transmission means for transmitting the setting information encrypted by the encryption means to the portable terminal via a communication network,
The portable terminal is
Decoding means for decoding the setting information received from the control terminal based on the control terminal identification information stored in advance;
Setting means for setting the mobile terminal based on the setting information decoded by the decoding means,
The mobile terminal setting system, wherein the setting means performs control to prohibit setting of setting items that match a predetermined exclusion condition. The sending means sends an email containing the encrypted setting information,
The mobile terminal setting system according to claim 1, wherein the decrypting means decrypts the setting information included in the received e-mail.   The portable terminal setting system according to claim 1 or 2, wherein the setting means cancels the exclusion condition when a predetermined condition is satisfied. The setting means sets the setting prohibition information indicating that the setting item setting is prohibited in accordance with the setting item being set based on the setting information, and the setting prohibition information is set as an exclusion condition. The portable terminal setting system according to any one of claims 1 to 3, wherein control for prohibiting setting of setting items is performed based on the setting. A control terminal that remotely sets the setting items of the mobile terminal,
Encryption means for encrypting the setting information indicating the setting content of the setting item of the mobile terminal using control terminal identification information capable of identifying the control terminal;
A control terminal comprising: transmission means for transmitting the setting information encrypted by the encryption means to the portable terminal via a communication network. A mobile terminal in which setting items are remotely set by a control terminal,
The portable terminal is
Decoding means for decoding setting information received from the control terminal based on control terminal identification information capable of identifying the control terminal stored in advance;
Setting means for setting the mobile terminal based on the setting information decoded by the decoding means;
The mobile terminal according to claim 1, wherein the setting means performs control to prohibit setting of a setting item that matches a predetermined exclusion condition. A mobile terminal setting method in which a control terminal remotely sets a mobile terminal,
An encryption step in which the control terminal encrypts the setting information indicating the setting content of the setting item of the mobile terminal using control terminal identification information capable of identifying the control terminal;
A transmission step in which the control terminal transmits the setting information encrypted in the encryption step to the mobile terminal via a communication network;
A decoding step for decoding the setting information received from the control terminal based on the control terminal identification information stored in advance by the portable terminal;
A setting step in which the portable terminal sets the portable terminal based on the setting information decoded in the decoding step;
The mobile terminal setting method, wherein the mobile terminal performs control for prohibiting setting of setting items that match a predetermined exclusion condition in the setting step. A control terminal program installed in a control terminal for remotely setting a setting item of a mobile terminal,
On the computer,
An encryption process for encrypting the setting information indicating the setting content of the setting item of the mobile terminal using control terminal identification information capable of identifying the control terminal;
A control terminal program for executing a transmission process for transmitting the setting information encrypted by the encryption process to the portable terminal via a communication network. A mobile terminal setting program installed in a mobile terminal whose setting items are remotely set by a control terminal,
On the computer,
A decoding process for decoding the setting information received from the control terminal based on the control terminal identification information capable of identifying the control terminal stored in advance;
A setting process for setting the mobile terminal based on the setting information decoded by the decoding process;
A portable terminal setting program for executing a process of prohibiting setting of a setting item that matches a predetermined exclusion condition in the setting process.

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