JPH1118152A - Unauthorized use prevention system for portable telephone terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the unauthorized use of a lost portable telephone terminal and to facilitate search and recovery, etc., by connecting a call terminated to the portable telephone terminal through a specified terminal number so as to report it, performing a call processing by using calling signals different from normal calling processing ones and authenticating that a caller who has dialed the specified terminal number is the owner of the portable telephone terminal. SOLUTION: The call terminated to a portable telephone terminal 4 by a specified terminal number is connected so as to be reported by an announcement device or a tone generator, a called portable terminal number and an identification number are received, based on the guidance of the announcement device or the tone generator. In when the collated result of the identification number is correct, the call processing is performed by using the calling signal different from the ones of the normal calling processing. Thus, it is authenticated that the caller, who dials the predetermined specified terminal number is the owner of the lost portable telephone number 4. Also, the portable telephone terminal 4 is call origination controlled or call origination control is canceled by a subscriber control.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable telephone terminal illegal use protection system for protecting a portable telephone terminal from unauthorized use in a mobile communication system and searching for a lost portable telephone terminal.

[0002]

2. Description of the Related Art The prior art is disclosed in Japanese Patent Laid-Open No. 7-1938.
No. 65 can protect internal data even if it is lost,
In addition, a mobile phone terminal device and a security method for the mobile phone terminal device that can prevent a problem of being used by another person and being charged are disclosed.

As shown in FIG. 2, a network configuration of a portable telephone terminal system in this portable telephone terminal device includes a telephone 100 connected to a public switched telephone network (PSTN, ISDN), a portable telephone terminal 102, and a public telephone line. It has a communication line 103 connected to a network, a relay base station 104, and a wireless communication line 105.

[0004] Further, the portable telephone terminal 102 is connected to the antenna 12.
1 and the relay base station 104 has an antenna 104a
have. The telephone 100 has a handset 101b and an operation unit switch 101b for inputting a telephone number and the like and for inputting a command for remotely operating the mobile phone terminal 102.

By the way, when the portable telephone terminal 102 is lost, the owner of the portable telephone terminal 102
, And transmits the remote operation data to the mobile phone terminal 102. On the mobile phone terminal 102 side, the remote operation data is received, and based on the received remote operation data, the mobile phone terminal 102 is protected by internal protection processing means.
Perform a protection process that eliminates the disadvantage of the owner of the.

As a protection process, for example, when an attempt is made to make a call using the mobile phone terminal 102, all of the telephone numbers are connected to the telephone number of the contact information of the owner of the mobile phone terminal 102 stored in advance. To make a call, or delete all the data necessary for making a call, such as the ID data of the owner of the mobile phone terminal 102, so that the call cannot be made. A process for erasing special data relating to the owner of the mobile phone terminal 102 which is troublesome is performed.

[0007]

However, in the prior art, it is necessary to provide a service that prevents unauthorized use of the lost portable telephone terminal 102 and facilitates the search and collection of the lost portable telephone terminal 102. Since it is necessary to provide data transmission equipment on both the mobile phone terminal 102 side and the network side, there is a problem that the enjoyment of the service depends on the presence or absence of the data transmission equipment.

[0008] Therefore, an object of the present invention is to provide a mobile phone terminal that provides a subscriber with a service for preventing unauthorized use of a lost mobile phone terminal and facilitating the search and recovery of the lost mobile phone terminal. It is to provide an unauthorized use protection method.

Another object of the present invention is to provide a method for preventing unauthorized use of a portable telephone terminal which realizes a service by call control on the mobile exchange side.

[0010]

According to the present invention, there is provided a method for preventing unauthorized use of a portable telephone terminal which protects the unauthorized use of the portable telephone terminal and provides services such as search and collection of the lost portable telephone terminal. Means for connecting to the exchange side so as to notify a call arriving at the mobile phone terminal with a predetermined specific terminal number from a telephone, and receiving a called mobile terminal number and a password based on the guidance of the notification. If the collation result of the personal identification number is correct, a means for performing a call process using a call signal different from a normal call process, and a lost portable telephone corresponding to the called portable terminal number by subscriber control Means for restricting the call to the terminal or canceling the call control, means for transmitting a plurality of types of call signals from the radio base station, and means for transmitting the predetermined specific call signal to the mobile phone terminal Unauthorized defense system of the mobile telephone terminal, characterized in that receiving a and a said mobile telephone terminal is automatically call state means is obtained.

[0011]

According to the present invention, a means for connecting to notify a mobile phone terminal of a call with a specific terminal number and a means for performing a call process using a call signal different from a normal call process are used to determine a specific call. Authenticates that the caller who dialed the terminal number is the owner of the lost mobile phone terminal.

[0012] Further, by providing a means for canceling outgoing calls or canceling outgoing calls in a lost mobile telephone terminal by subscriber control, it is possible to prevent the lost mobile telephone terminal from being illegally used by anyone other than the owner. prevent.

Further, means for transmitting a plurality of calling signals from the radio base station, and when the mobile phone terminal receives a predetermined calling signal, the lost mobile phone terminal is automatically sent to the lost mobile phone terminal without a user's response operation. By means of a target telephone call, an external person is called through the telephone terminal lost from the telephone.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an embodiment of a system for preventing unauthorized use of a portable telephone terminal according to the present invention. The method for preventing unauthorized use of a mobile phone terminal according to the present embodiment protects unauthorized use of a mobile phone terminal and provides services such as searching for and recovering a lost mobile phone terminal.

Referring to FIG. 1, the network of the mobile phone terminal unauthorized use protection system is composed of a telephone 1, an exchange 2, a wireless base station 3, and a mobile phone terminal 4 connected to a general line. It is configured.

A method for preventing unauthorized use of a portable telephone terminal is based on a method in which a switch 2 receives an incoming call from a telephone 1 to a portable telephone terminal 4 with a predetermined specific terminal number using an announcer or a tone generator. The connection means and the called mobile terminal number and the password are received based on the guidance of the announcement device or the tone generator, and if the collation result of the password is correct, a call signal different from the normal call processing is used. Means for performing call processing, means for restricting or canceling outgoing call control of a lost mobile telephone terminal corresponding to a called mobile terminal number under subscriber control,
And means for transmitting a plurality of types of call signals from the mobile phone, and means for automatically setting the mobile phone to a communication state when the mobile phone terminal 4 receives the predetermined specific call signal.

A means for connecting to the exchange 2; a means for performing call processing; a means for restricting outgoing call to the portable telephone terminal 4 or a means to cancel outgoing call control; Means for transmitting the
Has been implemented. The means by which the mobile phone terminal 4 automatically enters a talking state is implemented in the mobile phone terminal 4.

In the system for preventing unauthorized use of a portable telephone terminal according to the present embodiment, the portable telephone terminal 4 is designated by a specific terminal number.
Means for connecting to the exchange 2 so as to notify the call arriving at the announcement device or the tone generation device, and receiving the called mobile terminal number and the password based on the guidance of the announcement device or the tone generation device, and If the result of the verification is correct, the caller dialing the predetermined specific terminal number can use the call signal different from the normal call process to execute the call processing. Authenticate that you are the owner.

Further, by providing a means for restricting outgoing call or canceling outgoing call control to the lost portable telephone terminal 4 corresponding to the telephone number of the called portable telephone terminal 4 by subscriber control, the lost portable telephone terminal 4 is provided. 4 prevents unauthorized use by anyone other than the owner.

Further, means for transmitting a plurality of calling signals from the radio base station 3 and, when the mobile phone terminal 4 receives a predetermined calling signal, the lost mobile phone terminal without any response operation by the user. 4 automatically calls the outside person through the mobile phone terminal 4 which has been lost from the telephone 1 by means for automatically entering a call state.

Hereinafter, a process for preventing the misuse of the lost portable telephone terminal 4 will be specifically described with reference to FIG.

The exchange 2 has an announcement trunk 21 installed to receive a call of a terminal number, a receiver (PB signal receiver) 22, and a central controller 23.
Further, the wireless base station 3 has a base station antenna 33, and the portable telephone terminal 4 has a terminal antenna 44.

First, a predetermined specific terminal number "XXX-XXX-XXXX" is dialed from the telephone 1. Announcement trunk 21 installed to receive calls with terminal number "XXX-XXX-XXXX"
After receiving the call, the mobile phone 4
To input the telephone number "YYY-YYY-YYYY" and the personal identification number.

The telephone number and the personal identification number of the portable telephone terminal 4 entered based on the announcement requesting the input of the telephone number "YYY-YYY-YYYY" and the personal identification number
2 is received. In the receiver 22, the telephone number and the password are collated. If the collation of the password is correct, the central control unit 23 of the exchange 2 performs the following subscriber control.

The outgoing call is restricted on the portable telephone terminal 4. A paging signal 10 different from a normal paging signal is transmitted from the wireless base station 3. At this time, the mobile phone terminal 4 that has received the call signal 10 automatically enters a call state without a user's response operation.

Furthermore, after dialing a predetermined specific terminal number from the telephone 1 again and receiving the call, an announcement requesting the caller to input the telephone number of the mobile telephone terminal 4 and the personal identification number is issued. Do. Then, the receiver 22 receives the input telephone number and password of the mobile phone terminal 4 based on the announcement requesting the input of the telephone number and the password, and the receiver 22 compares the telephone number and the password. .

If the collation of the password is correct, the calling restriction is applied to the portable telephone terminal 4, and the function of transmitting the calling signal 10 different from the normal calling signal from the radio base station 3 is released from the exchange 2.

When the unusual calling signal 10 is received by the mobile phone terminal 4, for example, a buzzer sound, "This mobile phone terminal is lost", "Deliver this mobile phone terminal to the police" Please "," Phone number (XYX-Y
Please call XY-YXYX) ".

When the unusual calling signal 10 is received by the mobile phone terminal 4, the user enters a call state without pressing the answer button of the mobile phone terminal 4, and the message "Deliver this mobile phone terminal to the police" Please ".

[0030]

As described above, according to the embodiment of the present invention, according to the unauthorized use protection system for a portable telephone terminal, an incoming call from the telephone to the portable telephone terminal 4 with a predetermined specific terminal number is made. A means for connecting to notify the called call, and receiving the called mobile terminal number and the password based on the guidance of the notification, and using a call signal different from the normal call processing when the collation result of the password is correct. By means of the call processing, it is possible to authenticate that the caller dialing the predetermined specific terminal number is the owner of the lost mobile telephone terminal.

In addition, by providing a means for restricting outgoing call or canceling outgoing call control to the lost portable telephone terminal corresponding to the telephone number of the called portable telephone terminal by subscriber control, possession of the lost portable telephone terminal becomes possible. Can be prevented from being misused by anyone other than the person.

Further, means for transmitting a plurality of calling signals from the radio base station, and when the predetermined calling signal is received by the portable telephone terminal, the lost portable telephone terminal is automatically transmitted to the lost portable telephone terminal without any response operation by the user. By means for making a telephone call in an active state, it is possible to call an external person through the telephone terminal lost from the telephone.

[Brief description of the drawings]

FIG. 1 is a block diagram showing the configuration of a network of a system for preventing unauthorized use of a mobile phone terminal according to the present invention.

FIG. 2 is a configuration diagram showing a network configuration of a mobile phone terminal system in a conventional mobile phone terminal device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1,100 Telephone 2 Switch 3 Radio base station 4,102 Cellular phone terminal 22 Receiver 23 Central controller 33 Base station antenna 44 Terminal antenna

Claims (3)

[Claims] 1. A method for preventing unauthorized use of a mobile phone terminal and providing a service such as searching for and recovering the lost mobile phone terminal. Means for connecting to the exchange side so as to notify the incoming call to the mobile phone terminal by the terminal number, and receiving the called mobile terminal number and the password based on the guidance of the notification, and the collation result of the password is correct. In this case, means for performing a call process using a call signal different from the normal call process and a call control or a call control for the lost mobile phone terminal corresponding to the called mobile terminal number by subscriber control. Means for canceling the call, means for transmitting a plurality of types of call signals from the wireless base station, and the mobile phone terminal receives the specific predetermined call signal when the mobile phone terminal receives Unauthorized defense system of the mobile telephone terminal, characterized in that it comprises a means for a dynamic call state. 2. A method for preventing unauthorized use of a mobile phone terminal according to claim 1, wherein said means for connecting to said exchange, said means for performing call processing, and said means for restricting outgoing call to said mobile phone terminal or said outgoing call. A method for preventing unauthorized use of a mobile phone terminal, wherein means for releasing control and means for transmitting a plurality of types of the calling signals from the wireless base station are mounted on the exchange. 3. The portable telephone terminal according to claim 1, wherein said portable telephone terminal is provided with means for automatically setting a telephone conversation state in said portable telephone terminal. A method for preventing unauthorized use of terminals.