JPH0530193A - Malcious call restriction connection system - Google Patents

Abstract

PURPOSE:To prevent the incoming call of a malcious call by registering identification number when the incoming call is judged to be the malcious call and recognizing it hereafter so as to deny the incoming call. CONSTITUTION:When the incoming call is discriminated to be the malcious call, an incoming call subscriber 1 dials a special number. An exchange receives identification information and sets the identification number of a calling subscriber 3 to be the caller of the malcious call and registers it in a data base 2. All the calls which are to be received by the subscriber 1 are checked whether they are the malcious call or not by accessing the data base 2. When it is judged to be the malcious call restriction of the connection is informed from a sound information device 4 by recorded sound.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a malicious call control connection system used for controlling malicious calls in a telephone switching system.

[0002]

2. Description of the Related Art Conventionally, a method of protecting a called subscriber from a malicious call such as a prank call is that the called subscriber monitors the incoming call and knows that the call is a malicious call. This function is supported by the prank call prevention function of the telephone, such as allowing the other party to hear a certain voice or returning the voice of the caller to this caller, and does not particularly restrict this incoming call.

[0003]

In the method of utilizing the prank call prevention function of this conventional telephone, the prank call prevention function is activated by the operation of the telephone when the called subscriber answers and determines that the call is a prank call. There is a problem that the called subscriber must answer the prank call.

[0004]

According to the malicious call control connection system of the present invention, a database and a voice notification device commonly used in a communication network are provided, and when a call is connected, a caller's telephone number and a caller's telephone number are used. When a personal identification number, which is a unique number assigned to each service subscriber, is received and information indicating that it is a malicious call is received from the called subscriber, it corresponds to this called subscriber's telephone number. Then, the personal identification number is registered in the database.
When receiving an incoming call to the called subscriber, refer to the database,
It is confirmed whether or not the received personal identification number is registered, and if it is confirmed that it is registered, this calling subscriber is connected to the voice notification device in which a predetermined message is recorded in advance. It is a composition.

[0005]

The present invention will be described below with reference to the drawings.

FIG. 1 is a diagram for explaining one embodiment of the present invention. In FIG. 1, a prank call is made through a public telephone network 5 having a function of transmitting a personal identification number, which is a unique number given to each service subscriber, to a called subscriber 1 who is provided with a prank call prevention service. The calling subscriber 3 for making a call is connected to the public telephone network 5,
The database 2 and the voice notification device 4 are connected.

The operation will be described below. When the exchange (not shown) accommodating the called subscriber 1 is connected to the incoming call, the called subscriber 1 provided with the prank call prevention service determines that the incoming call is a prank call. Dial an allowed special number. The exchange receives the identification information, accesses the database 2 for registration for preventing mischievous call using the personal identification number installed in the network, and the individual of the calling subscriber 3 transmitted from the calling station side. The identification number is used as a prank caller and registered in correspondence with the called subscriber 1.

Thereafter, it is checked whether or not all the calls to the called subscriber 1 who has been provided with the prank call prevention service are prank calls that access the database 2. If the result of this check indicates that the call is a prank call, this call is connected to the voice notification device 4 in the network, and the fact that the call is registered as a prank call and the connection to the called subscriber is restricted is recorded in advance. Notification will be given.

In order to delete the personal identification number registered in the database 2, the called subscriber 1 dials a special number for cancellation, the exchange receives and identifies it, and the database 2 receives the corresponding personal identification number. This is done by giving an erasing instruction to.

[0010]

As described above, according to the present invention, in a network for transmitting a personal identification number of a telephone user, an incoming call is maliciously transmitted to a database provided in the network by using the personal identification number transmitted from the calling side. When it is determined that a call has been made, this personal identification number is registered for the called subscriber, and when the incoming call is received by this called subscriber, the database is used to check whether or not this registration has been made. This has the effect of preventing a prank call from a telephone user who has a specific personal identification number for the called subscriber.

[Brief description of drawings]

FIG. 1 is a diagram for explaining an embodiment of the present invention.

[Explanation of symbols]

 1 Called subscriber 2 Database 3 Calling subscriber 4 Voice notification device 5 Public telephone network

Claims (1)

Claim: What is claimed is: 1. A database and a voice notification device, which are commonly used in a communication network, are provided, and at the time of incoming call connection, for each service subscriber transmitted from the calling side together with the telephone number of the called subscriber. When the personal identification number that is the assigned unique number is received and the information indicating that the telephone call is a malicious call is received from the called subscriber, the personal identification number corresponding to the telephone number of the called subscriber Register it in the database,
After that, when an incoming call is received by the called subscriber, it is checked whether the received personal identification number is registered or not, and if it is confirmed that the received personal identification number is registered, this calling subscriber is confirmed. A malicious call barring connection system characterized by connecting to the voice notification device in which a predetermined message is recorded in advance.