JP2006148431A - System and method for coping with portable terminal theft - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a system and a method for protecting registration information preserved in a portable terminal which is conventionally lost from the portable terminal at the time of the portable terminal being stolen or lost, and for preventing illegal usage of the stolen or lost portable terminal. <P>SOLUTION: The portable terminal theft prevention method in a system includes: the portable terminal; a communication network connecting the portable terminal, a theft prevention apparatus connected to the communication network; and a backup apparatus. The portable terminal responds to an incoming call from the theft prevention apparatus without displaying indicative of the incoming call nor ringing, transmits to the backup apparatus the preserved registration information together with the contractor information of the portable terminal, based on the indication from the robbery measure apparatus, and deletes the registration information on receiving a notification indicating that the contractor information and the registration information are correctly received from the backup apparatus. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to measures against theft of portable terminals using communication technology and data processing technology.

  Currently, if a mobile terminal such as a mobile phone is lost, the provider providing the communication service takes measures to disable communication on the communication network side based on the communication from the owner to prevent unauthorized use. Yes. Further, in order to protect personal information stored in the portable terminal, measures such as protection by a personal identification number and protection by fingerprint authentication are also taken on the portable terminal side.

  However, since calling up data protected by a password or the like requires an extra operation, there is an operability problem for frequently used data, and it is not always used. For this reason, a function is provided to prevent access to others by accessing the stolen terminal via a communication network and encrypting the information, but information stored only by the terminal , It will be lost unless the mobile device returns. Further, when a removable external storage medium such as an SD card is mounted, there is a problem that the external storage device is removed and referred to by a computer or the like even if the mobile phone cannot be operated.

  In addition, in order to improve the convenience of the portable terminal, a form in which a storage medium storing the telephone number or the like is attached to the portable terminal and used instead of directly writing the telephone number or the like in the storage device of the telephone main body has begun to be used. . In this case, even if it is impossible to make a call from the original telephone number of the stolen terminal, the thief's terminal is attached to the stolen portable terminal with a storage medium storing the telephone number of the thief. If the terminal itself is valuable, there is a concern that the possibility of returning the stolen terminal is reduced. In particular, this trend is expected to increase as the terminal becomes newer.

  Furthermore, with the advancement of functions of mobile terminals, mobile terminals are equipped with functions such as cameras, voice recorders, and PDAs. As a result, even if communication functions of mobile terminals cannot be used, Since it can be used, there is an increasing concern that the possibility of returning a stolen terminal will be reduced.

  The applicant does not know the existence of documents corresponding to the prior art documents.

  Therefore, the present invention protects the registration information stored by the owner, which has been lost with theft or loss of the portable terminal, and the portable terminal that has been stolen or lost. An object of the present invention is to provide a portable terminal anti-theft system and method for preventing the mobile terminal from being used.

According to the portable terminal theft countermeasure system of the present invention,
In a portable terminal anti-theft system comprising a portable terminal, a communication network to which the portable terminal can be connected, and a theft countermeasure device and a backup device connected to the communication network, the anti-theft device includes a telephone number of the portable terminal When the contractor information is input, the communication device has a transmission means for making a call to the mobile terminal and a means for giving a backup instruction to the mobile terminal when the mobile terminal responds to the call. In the case of transmission from the countermeasure device to the portable terminal, the portable terminal has a means for performing a predetermined incoming call for recognizing that the transmission is from the anti-theft device, and the portable terminal stores information, In the case of an incoming call from the anti-theft device, a means for responding without displaying and ringing the incoming call, and a backup device based on an instruction from the anti-theft device when receiving from the anti-theft device When receiving a notification indicating that the contractor information and the registration information are normally received from the backup device, and means for transmitting the registration information stored in the means for storing the information together with the contractor information of the portable terminal And a means for erasing the registration information, and the backup device has means for storing the registration information received from the portable terminal in association with the contractor information.

According to another embodiment of the portable terminal theft countermeasure system of the present invention,
Connected to the communication network and has a restore device that can communicate directly with the mobile terminal. When the contractor information is input, the restore device registers from the backup device and means for transmitting the contractor information to the backup device. Means for transmitting the received registration information to a portable terminal capable of direct communication when the information is received, and when the backup device receives the contractor information from the restore device, the backup device associates it with the received contractor information. It is also preferable to have means for transmitting stored registration information to the restore device.

According to another embodiment of the portable terminal theft countermeasure system of the present invention,
It has a theft terminal information database connected to the communication network, the theft terminal information database stores main body identification information that is information for uniquely identifying the mobile terminal, and the main body identification information from another device is the above-mentioned Response means for responding to an inquiry as to whether or not the information is stored in the storage means, and the communication network receives the main body identification information and contractor information of the mobile terminal received from the mobile terminal capable of communication Whether or not the anti-theft device transmits the main body identification information received from the communication network to the anti-theft terminal information database and is stored in the anti-theft terminal information database. Means for confirming whether or not the main body identification information is stored in the stolen terminal information database, the subscriber means uses the contractor information received from the communication network. It is also preferable to send to the mobile terminal being.

Furthermore, according to another embodiment of the portable terminal theft countermeasure system of the present invention,
The theft terminal information database stores destination information together with main body identification information in the storage means, and the response means notifies the destination information when notifying that the main body identification information is stored in the storage means, The communication network has position detecting means for detecting position information of the portable terminal, and the transmitting means transmits the position information of the portable terminal detected by the position detecting means together with the main body identification information and the contractor information, and theft. When the main body identification information received from the communication network is stored in the theft terminal information database, the countermeasure device receives the main body identification information, contractor information, and position received from the communication network at the destination specified by the destination information received. It is also preferable to have means for transmitting information.

Furthermore, according to another embodiment of the portable terminal theft countermeasure system of the present invention,
When the contractor information and the main body identification information are input and the transmission means of the anti-theft device is transmitted to the mobile terminal, if there is no response from the mobile terminal even after a predetermined time has passed, It is also preferable to store the main body identification information in the storage means of the terminal information database.

Furthermore, according to another embodiment of the portable terminal theft countermeasure system of the present invention,
The anti-theft device includes means for storing geographical information contained in a cell which is a communication area of a base station of a communication network, position information received from the communication network, and means for estimating a moving route of a mobile terminal from the geographical information It is also preferable to have

Furthermore, according to another embodiment of the portable terminal theft countermeasure system of the present invention,
It is also preferable that the mobile terminal transmits the main body identification information to the communication network even when an external storage device that stores contractor information is not attached.

According to the portable terminal theft countermeasure method of the present invention,
In a portable terminal theft countermeasure method in a system having a portable terminal, a communication network to which the portable terminal can be connected, and a theft countermeasure apparatus and a backup device connected to the communication network, the theft countermeasure apparatus is a telephone number of the portable terminal When the contractor information including is inputted, the mobile terminal makes a call to the mobile terminal, and the communication network sends a call from the anti-theft device to the mobile terminal. Receiving a predetermined incoming call, the portable terminal responds to the incoming call from the anti-theft device without displaying and ringing to indicate the incoming call. If the registration information stored together with the contractor information of the terminal is sent and a notification indicating that the contractor information and registration information have been received normally from the backup device is received, And performing erasing of information.

  According to the present invention, registration information, which is personal information stored in a lost mobile terminal or a stolen mobile terminal, is backed up after being lost or stolen, and deleted from the mobile terminal to protect the registered information. Can be reused.

  The portable terminal is a form that uses a storage medium storing the phone number etc. attached to the portable terminal, and it is stolen or lost even if a storage medium storing the telephone number of another person is attached. It is possible to grasp that the mobile terminal is a portable terminal, protect the registered information, and track its position. Further, even when no storage medium is loaded, the position can be tracked, so that an effect of suppressing unauthorized use of a stolen or picked-up mobile terminal can be obtained.

  The best mode for carrying out the present invention will be described in detail below with reference to the drawings.

  First Embodiment FIG. 1 is a system configuration diagram of a first embodiment of the present invention. According to FIG. 1, the system includes a mobile terminal 1, a communication network 2, a personal information database 3, a theft countermeasure device 4, a backup device 5, operator terminals 61 and 62, and a restore device 7.

  The personal information database 3, the anti-theft device 4, the backup device 5, the operator terminals 61 and 62, and the restore device 7 are connected to the communication network 2, and use the communication function of the communication network 2. Communication is possible.

  The mobile terminal 1 can be connected to the communication network 2 and is a mobile communication terminal such as a mobile phone. The mobile terminal 1 can communicate with other devices using the communication function of the communication network 2. The portable terminal 1 has an internal or external storage device, and can store various information such as image data, telephone number data, schedule data, and the like. In addition, the contractor information including its own telephone number is stored in an internal or external storage device.

  The personal information database 3 stores contractor information and information for identifying each mobile terminal owner. FIG. 2 is a diagram illustrating an example of information stored in the personal information database 3. In the example of FIG. 2, in addition to the owner's name, address, date of birth, and telephone number, a question for checking the identity and the answer are stored.

  In the configuration of FIG. 1, processing when the portable terminal 1 is stolen will be described below. In this system, processing at the time of theft is started by inputting contractor information including the telephone number of the stolen portable terminal 1 to the antitheft device 4. For this purpose, the owner of the stolen portable terminal 1 contacts the communication carrier and receives authentication based on information stored in the personal information database 3. If there is no problem in authentication, the communication carrier inputs the contractor information of the portable terminal 1 from the operator terminal 61 to the antitheft device 4.

  If the owner of the portable terminal 1 accesses the personal information database 3 from a communication device (not shown) connected to the communication network 2 and the personal information database server 3 performs authentication and there is no problem in identity confirmation, the personal information The database server 3 may be configured to input the contractor information to the antitheft device 4.

  FIG. 3 is a sequence diagram of a system according to the present invention. The anti-theft device 4 to which the contractor information of the mobile terminal 1 is input makes a call to the mobile terminal 1 based on the input contractor information. When the communication network 2 is an outgoing call from the anti-theft device 4 to the portable terminal 1, the communication terminal 2 receives the incoming call to the portable terminal 1 by a predetermined method for recognizing that the outgoing call is from the anti-theft device 4. Process. As a predetermined method for causing the mobile terminal 1 to recognize that the call originates from the antitheft device 4, for example, a method of setting a caller number to a predetermined special number such as # 1078, or a special incoming signal is used. There are methods to use.

  The mobile terminal 1 that has received an incoming call first confirms the caller, and if the caller is the anti-theft device 4, it does not perform any ringing or call display at the time of normal incoming calls, The power OFF operation is disabled, and the response to the antitheft device 4 is made.

  The antitheft device 4 that has received the response from the portable terminal 1 issues a backup instruction to the portable terminal 1. At this time, the mobile terminal 1 is also notified of information for accessing the backup device 5 such as the telephone number and IP address of the backup device 5.

  The portable terminal 1 transmits the registration information registered by the owner together with the contractor information of the portable terminal 1 to the backup device 5 to perform backup. The backup device 5 stores the received registration information in association with the contractor information of the mobile terminal 1, and when the storage is completed normally, notifies the mobile terminal 1 that the backup is completed. The mobile terminal 1 that has received notification from the backup device 5 that the backup has been completed deletes the registration information registered by the owner.

  In the example of FIG. 3, the portable terminal 1 performs backup by directly accessing the backup device 5 based on information for accessing the backup device 5 notified from the antitheft device 4. It is also possible to transmit the registration information to the anti-theft device 4 at the time of responding to, and transfer the anti-theft device 4 to the backup device 5.

  Next, a procedure for restoring the registration information to the mobile terminal 1 after the mobile terminal 1 whose registration information has been erased due to theft is returned to the owner will be described.

  In order to restore the registered information, the portable terminal 1 and the restore device 7 are directly connected. After the identity verification by the personal information database 3, as shown in FIG. 4, the contractor information is input from the operator terminal 62 to the restore device 7. The restore device 7 transmits a registration information request signal including contractor information to the backup device 5. The backup device 5 that has received the registration information request signal transmits registration information associated with the contractor information included in the registration information request signal to the restore device 7, and the restore device 7 directly receives the received registration information. Transfer to the connected mobile terminal 1. In addition, the mobile terminal 1 that has received the registration information from the restore device 7 changes its operation mode to enable normal terminal operation.

  In addition, when the stolen portable terminal 1 does not return, the owner of the portable terminal 1 performs the same operation on the newly purchased portable terminal, so that the registration information can be directly transferred to the new portable terminal. .

  With the above configuration, the registration information of a mobile device that has been stolen or lost is protected from unauthorized use by the theft or finder, and even if the registration information is not backed up in advance The information can be reused. In this configuration, since the registration information of the portable terminal is deleted after the backup, even if the information is stored in the external storage device such as an SD card, the external storage device is extracted from the portable terminal 1 and read by the computer. Can also be prevented.

  (2nd Embodiment) In 1st Embodiment, the antitheft device 4 transmits to the portable terminal 1, and when the portable terminal 1 responds, backup and deletion of registration information are started. However, the portable terminal 1 has a configuration in which an external storage device storing a telephone number is attached and used, and the external storage device of the owner of the portable terminal 1 is extracted, and the outside of the thief or finder When the storage device is attached, incoming calls from the antitheft device 4 to the portable terminal 1 cannot be performed. The present embodiment provides a function for identifying an unauthorized use of the stolen or found mobile terminal 1 in the above-described state.

  FIG. 5 is a system configuration diagram of the second embodiment of the present invention. In addition to the configuration of FIG. 1, the theft terminal information database 8 connected to the communication network 2 is provided. The portable terminal 1 is a terminal that is used by inserting a contractor information data storage medium 11 storing a telephone number and the like. Note that the operator terminal 62 and the restore device 7 are omitted in FIG. 5 for simplicity.

  FIG. 6 is a diagram showing an example of information stored in the personal information database 3 in the present embodiment. The difference from the first embodiment is that main body identification information that is information that can uniquely identify the mobile terminal itself, such as a manufacturing number of the mobile terminal, is held.

  FIG. 7 is a sequence diagram of the second embodiment of the present invention. When the portable terminal 1 is stolen, the main body identification information of the portable terminal 1 is stored in the theft terminal information database 8 after authentication based on the information stored in the personal information database 3 as described in the first embodiment. input. The input to the theft terminal information database 8 may be input from the operator terminal 61 or may be input from the authenticated personal information database 3.

  On the other hand, the stolen mobile terminal 1 normally receives and transmits contractor information such as main body identification information and telephone number in addition to the user ID transmitted and received between the mobile terminal 1 and the communication network 2 while the power is on. Also do. Further, the communication network 2 has a function of detecting position information of the mobile terminal 1 from a base station or the like accessed by the mobile terminal 1. The communication network 2 transmits the main body identification information and contractor information received from the mobile terminal 1 and the location information of the mobile terminal 1 detected by the communication network 2 to the antitheft device 4.

  The antitheft device 4 that has received the main body identification information, the contractor information, and the position information confirms whether the received main body identification information is stored in the theft terminal information database 8. Is transmitted to the theft terminal information database 8. When receiving the notification that the main body identification information is already registered from the theft terminal information database 8, the antitheft device 4 sends the received main body identification information, contractor information, and position information to the operator terminal 61. The operator terminal 61 displays the received main body identification information, contractor information, and position information. Thereafter, the antitheft device 4 starts the process described in the first embodiment based on the contractor information received from the communication network 2.

  In the sequence diagram of FIG. 7, the antitheft device 4 transmits the main body identification information, the contractor information and the position information to the operator terminal 61, but the portable terminal 1 together with the main body identification information is stored in the theft terminal information database 8. Destination information, such as an e-mail address and a FAX number, to be contacted when a password is found is stored, and the destination information is sent to the anti-theft device 4 in response to an inquiry from the anti-theft device 4 based on the main body identification information. By notifying, it is possible to transmit position information or the like to an arbitrary place.

  According to the present embodiment, even when the contractor information data storage medium 11 of the owner of the mobile terminal 1 is extracted from the mobile terminal 1 and the contractor information data storage medium 11 of the stolen person is installed instead. In addition, the stolen portable terminal 1 can be tracked by the main body identification information that uniquely identifies the portable terminal 1. Furthermore, it is possible to grasp the contractor information of a person who is illegally using the information, and to directly contact the position information of the mobile terminal 1 to a device at an arbitrary place such as the police. Moreover, the effect which suppresses the unauthorized use of the stolen portable terminal or the picked-up portable terminal is also acquired by the said effect.

  (3rd Embodiment) In 1st Embodiment, when the antitheft device 4 transmits to the portable terminal 1, when the power supply of the portable terminal 1 is OFF or the portable terminal 1 is out of the service area, the antitheft device 4 repeats. There is a problem that it is necessary to make a call to the portable terminal 1 and the load on the antitheft device 4 becomes large. In the present embodiment, the load on the antitheft device 4 is suppressed by using the processing described in the second embodiment.

  FIG. 8 is a sequence diagram of the third embodiment. The contractor information and the main body identification information of the stolen portable terminal 1 are input from the operator terminal 61 to the antitheft device 4. The antitheft device 4 makes a call to the mobile terminal 1, but cannot receive the mobile terminal 1 because the power of the mobile terminal 1 is OFF or out of service area. The antitheft device 4 registers the main body identification information in the theft terminal information database 8 when there is no response from the portable terminal 1 even after a predetermined time has elapsed. At this time, a flag is displayed to indicate that the backup has not ended, and the data is saved. Thereafter, in the same procedure as described in the second embodiment, the anti-theft device 4 determines whether or not the main body identification information received from the communication network 2 is stored in the theft terminal information database 8. Make an inquiry. The theft terminal information database 8 also notifies information indicating whether or not the backup has been completed when notifying that the main body identification information is stored. The antitheft device 4 starts backup when it receives a notification that backup has not ended.

  In the sequence diagram of the second embodiment shown in FIG. 7, the main body identification information is registered from the operator terminal 61 to the theft terminal information database 8, but the second embodiment is similar to the third embodiment. When the main body identification information and the contractor information are input from the terminal 61 to the anti-theft device 4, and when the anti-theft device 4 determines that the incoming call to the portable terminal cannot be made, it is registered in the anti-theft terminal information database 8. There may be. At this time, similarly to the sequence diagram of FIG. 8, a flag indicating that the backup is not completed is set and saved.

  According to the present embodiment, even when the incoming call to the mobile terminal 1 cannot be made, the anti-theft device 4 can accurately track the mobile terminal 1 and protect the registered information without repeatedly making a call.

  Next, the tracking method of the mobile terminal 1 will be described in detail. FIG. 9 is a diagram illustrating an example of a cell that is a communication area of each base station of the communication network 2 and an example of a railroad or a road included in each cell. FIG. 10 corresponds to the example of FIG. It is an example of the geographical information which the antitheft device 4 preserve | saves. In FIG. 10, for example, the expression “national road Δ △: prefectural road ◆◆” crosses or connects the national road Δ △ and prefectural road ◆◆, and can move from the national road Δ △ to the prefectural road ◆◆. Means that.

  As shown in the sequence diagrams of FIGS. 7 and 8, the communication network 2 transmits main body identification information, position information, and the like of the portable terminal 1 to the antitheft device 4. FIG. 11 is an example of information that the communication network 2 transmits to the anti-theft device 4. The antitheft device 4 estimates the movement route of the mobile terminal 1 from the information in FIG. 11 and the information in FIG. 10 as shown in FIG.

  Even when the contractor information data storage medium 11 is not attached to the mobile terminal 1 and the contractor information itself cannot be obtained, the mobile terminal 1 transmits the main body identification information to the communication network 2, and the communication network 2. However, by transmitting the main body identification information and the position information to the anti-theft device 4, as described above, it is possible to grasp the moving route of the mobile terminal 1 and the position that is more likely to be present than the moving route. Therefore, for example, the effect of deterring theft and the like for the purpose of functions other than the communication function such as the digital camera function and the PDA function of the mobile terminal 1 can be obtained.

It is a system configuration figure of a 1st embodiment of the present invention. It is a figure which shows the example of information which a personal information database preserve | saves. FIG. 2 is a sequence diagram of a system according to the present invention. It is a sequence diagram of registration information restoration. It is a system configuration figure of a 2nd embodiment of the present invention. It is a figure which shows the example of information which a personal information database preserve | saves. It is a sequence diagram of a 2nd embodiment of the present invention. It is a sequence diagram of a 3rd embodiment of the present invention. It is a figure which shows the example of a train, a road, etc. which are contained in a cell and each cell. It is an example of the geographical information which an antitheft device hold | maintains. It is an example of the information which a communication network transmits to an antitheft device. It is an example of the portable terminal position which a theft countermeasure apparatus estimates.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Mobile terminal 2 Communication network 3 Personal information database 4 Anti-theft device 5 Backup device 61, 62 Operator terminal 7 Restoration device 8 Theft terminal information database 11 Contractor information data storage medium

Claims (8)

In a portable terminal anti-theft system comprising a portable terminal, a communication network to which the portable terminal can be connected, and a theft countermeasure device and a backup device connected to the communication network,
Anti-theft device
When the contractor information including the phone number of the mobile terminal is input, a transmitting means for transmitting to the mobile terminal;
When the portable terminal responds to the call, the portable terminal has a means for giving a backup instruction,
The communication network
In the case of transmission from the anti-theft device to the portable terminal, the portable terminal has means for performing a predetermined incoming call that recognizes that the transmission is from the anti-theft device,
Mobile devices
A means of storing information;
If it is an incoming call from the anti-theft device, means for responding without displaying and ringing to indicate the incoming call,
Means for transmitting registration information stored in a means for storing information to the backup device together with the contractor information of the mobile terminal based on an instruction from the anti-theft device when an incoming call is received from the anti-theft device;
Means for erasing the registration information when receiving a notification indicating that the contractor information and the registration information have been normally received from the backup device;
The backup device
Having a means for storing the registration information received from the mobile terminal in association with the contractor information;
Mobile phone anti-theft system characterized by Connected to the communication network, has a restore device that can communicate directly with the mobile terminal,
The restore device
When the contractor information is input, a means for transmitting the contractor information to the backup device;
Means for transmitting the received registration information to a portable terminal capable of direct communication when the registration information is received from the backup device;
The backup device
When the contractor information is received from the restore device, it has means for transmitting registration information stored in association with the received contractor information to the restore device,
The portable terminal antitheft system according to claim 1. Has a stolen terminal information database connected to the communication network,
The stolen device information database
Storage means for storing body identification information, which is information for uniquely identifying the mobile terminal;
Response means for responding to an inquiry as to whether or not main body identification information from another device is stored in the storage means;
The communication network
Having a transmitting means for transmitting main body identification information and contractor information of the mobile terminal received from a mobile terminal capable of communication to the anti-theft device;
Anti-theft device
The main body identification information received from the communication network is transmitted to the theft terminal information database, and has a means for confirming whether or not it is stored in the theft terminal information database,
When the main body identification information is stored in the theft terminal information database, by the transmitting means, transmitting to the mobile terminal specified by the contractor information received from the communication network,
The portable terminal theft countermeasure system according to claim 1 or 2. The stolen device information database
Along with the main body identification information, the destination information is stored in the storage unit, and the response unit notifies the destination information when notifying that the main body identification information is stored in the storage unit,
The communication network
Having position detecting means for detecting position information of the mobile terminal;
The transmission means transmits the position information of the portable terminal detected by the position detection means together with the main body identification information and the contractor information,
Anti-theft device
When the main body identification information received from the communication network is stored in the theft terminal information database, the main body identification information, contractor information, and location information received from the communication network are transmitted to the destination specified by the destination information received. means,
The portable terminal theft countermeasure system according to claim 3, wherein The transmission means of the antitheft device is:
When the contractor information and the main body identification information are input and there is no response from the mobile terminal after a predetermined time has elapsed after being transmitted to the mobile terminal, the main body is stored in the storage means of the theft terminal information database. 4. The portable terminal antitheft system according to claim 3, wherein the identification information is stored. Anti-theft device
Means for storing geographic information contained in a cell which is a communication area of a base station of a communication network;
The mobile terminal antitheft system according to claim 4, further comprising: position information received from a communication network; and means for estimating a movement route of the mobile terminal from the geographical information. Mobile devices
5. The portable terminal theft countermeasure system according to claim 4, wherein the main body identification information is transmitted to the communication network even when the external storage device for storing the contractor information is not attached. In a portable terminal theft countermeasure method in a system having a portable terminal, a communication network to which the portable terminal can be connected, and a theft countermeasure device and a backup device connected to the communication network,
Anti-theft device
When the contractor information including the mobile phone number is entered, the mobile terminal is called,
The communication network is used for calling from the anti-theft device to the mobile terminal.
The mobile terminal makes a predetermined incoming call that recognizes that the call is from the anti-theft device,
Mobile devices
In response to an incoming call from the anti-theft device without displaying and ringing indicating the incoming call,
Based on the instructions from the anti-theft device, send the stored registration information to the backup device along with the contractor information of the mobile terminal.
If you receive a notification from the backup device indicating that you have successfully received the contractor information and registration information, delete the registration information.
A mobile terminal theft countermeasure method characterized by.

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