JP2001237962A - Exchange having evil call incoming discrimination service function and its discrimination method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a receiving subscriber to discriminate evil call incoming before response and to eliminate the need of storing a subscriber number of an evil call originator. SOLUTION: An exchange 30 receives the originating subscriber number transmitted from the calling side together with the telephone number of a receiving subscriber 40 when the incoming call from an originating subscriber 10 is connected through a public telephone network 20, and the exchange 30 registers the originating subscriber number in a database 33 for evil call correspondingly to the telephone number of the receiving subscriber if information indicating an evil call is received from the receiving subscriber. Hereafter, this database is referred to at the time of call incoming to the receiving subscriber; and if it is confirmed that a received originating subscriber number is registered, incoming of an evil call is decided, and a ringing tone indicating incoming of the evil call is sent from a ringing tone device 32 for evil call discrimination to the receiving subscriber to report incoming of the evil call before response of the receiving subscriber.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an exchange and a switching system having a function of identifying a malicious call termination and a method of identifying a malicious call termination.

[0002]

2. Description of the Related Art In a telephone exchange system, when a telephone terminal (subscriber) receives an incoming call, the contents can be understood only when the receiving subscriber (the user) responds. Therefore, the called subscriber must answer the incoming call (malicious call) of the calling subscriber (the user) such as a prank call.

[0003] Malicious calls are often repeated, and some measures can be taken once the originating subscriber can be identified. Therefore, by attaching the calling subscriber number display device to the telephone terminal (receiving terminal), the called subscriber (the user) can confirm the displayed calling subscriber number at the time of receiving a call and determine whether or not the call is a malicious call. Technology is used.

[0004]

When only the conventional telephone terminal is used, there is a problem that the called subscriber must respond to the malicious call incoming. On the other hand, in the case where the calling subscriber number display device is attached to the telephone terminal, the called subscriber recognizes the calling subscriber number and judges whether the call is a malicious call. ) Had to remember.

[0005]

According to the present invention, there is provided an exchange having a malicious call termination identification service function, a malicious call record database for recording a calling subscriber number of a malicious call in correspondence with a terminating subscriber, and a malicious call different from a general ringing tone. A malicious call identification ringing device that outputs a ringing tone indicating an incoming call and a calling subscriber number transmitted from the calling side together with the telephone number of the called subscriber at the time of incoming connection, and refers to the malicious call record database. The caller confirms whether or not the received calling subscriber number is registered. If the registered calling party number is registered, it is determined that the malicious call has been received, and the called subscriber is notified of the ringing tone for malicious call identification. Means for connecting a device and transmitting a ringing tone indicating the malicious call termination.

Further, in the exchange having the above-mentioned configuration, when it is determined that a malicious call has been received at the time of the above-mentioned incoming connection, a maintenance terminal which prints out the received telephone number of the receiving subscriber and the transmitting subscriber number transmitted from the transmitting side. Or to register / subscribe to the malicious call identification service for each called subscriber.
There may be means for deregistering.

[0007] The switching system of the present invention receives an incoming call from the above-mentioned exchange and the above-mentioned exchange and, when recognizing that the incoming call is a malicious call, sends information indicating the malicious call to the above-mentioned exchange. And a called subscriber for registering a calling subscriber number of the incoming call in a portion corresponding to the self-called subscriber number of the malicious call record database.

The method for identifying a malicious call termination according to the present invention is a method for identifying a malicious call termination of an exchange used for a terminating station in a communication network. Receiving the caller ID and receiving information from the called subscriber that the call is a malicious call,
The outgoing subscriber number is registered in a database corresponding to the telephone number of the incoming subscriber, and when the incoming subscriber receives an incoming call, the received outgoing subscriber number is registered with reference to the database. Check if it is registered, and if it is confirmed that it is registered, judge it as a malicious call incoming,
Sending a ringing tone to the called subscriber indicating a malicious call termination;
A step of enabling notification of malicious call termination before the called subscriber answers.

In the above-mentioned process, when it is determined that a malicious call has been received at the time of the incoming call connection, a step of printing out the received telephone number of the called subscriber and the calling subscriber number transmitted from the calling side on the maintenance terminal. Can be included.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS First, an outline of the present invention will be described.
A receiving station (exchange) in the communication network is provided with a database for recording a malicious call and a device for outputting a ringing tone different from a general ringing tone. Upon receiving the calling subscriber number and receiving information indicating that the call is a malicious call from the called subscriber, register the calling subscriber number in a database corresponding to the called subscriber's telephone number, Thereafter, when the above-mentioned incoming subscriber receives an incoming call, it refers to the database and checks whether or not the received calling subscriber number has been registered. Is connected to a ring tone indicating a malicious call reception, and the called subscriber is notified of the malicious call reception before answering.

When it is determined that a malicious call has been received, the originating subscriber number and the destination subscriber number can be stamped on the maintenance terminal of the exchange to record the occurrence of the malicious call.

Next, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the present invention. In FIG. 1, a subscriber (terminating subscriber) 40 provided with a malicious call termination identification service and an originating subscriber number are transmitted to an exchange (terminating exchange) 30 providing the malicious call termination identification service of the present invention. A subscriber (originating subscriber) 10 that sends a malicious call to a called subscriber 40 via a public telephone network 20 having a function is connected.

The terminating exchange 30 transmits a ringing tone (general ringing tone) indicating a normal incoming call to the terminating subscriber 40, and indicates a malicious call terminating to the terminating subscriber 40. A malicious call identification ringing device 32 for transmitting a ringing tone different from a general ringing tone, and a database for recording the originating subscriber number of the malicious call together with various types of subscriber information corresponding to the receiving subscriber. (Database) 33 and a maintenance terminal 34 operated by a maintenance person (or exchange operator) of the terminating exchange 30 to input and output various information.

There are various methods for distinguishing between a general ringing tone and a ringing tone for malicious call identification. In this embodiment, the period is changed. For example, the general ring tone is ON for 1 second,
OFF for 4 seconds, ringing tone for malicious call identification is O for 1 second
N, OFF for 1 second.

The terminating exchange 30 and the terminating subscriber 40
Has not only an incoming call function to the public telephone network 20 but also an outgoing call function, and also has other circuits and functions for a telephone call.

Next, the operation of this embodiment will be described.

The user of the subscriber (terminating subscriber) 40 applies to the operator of the switching center that manages the exchange (terminating exchange) 30 when the terminating subscriber 40 intends to receive the malicious call termination identification service. The operator operates the maintenance terminal 34 to register the called subscriber in the database (malicious call database) 33 to join the malicious call incoming call identification service. When the provision of the malicious call incoming identification service is stopped, the operator similarly operates the maintenance terminal 34.
To cancel the registration of the called subscriber in the malicious call database 33 to the malicious call incoming call identification service.

In the present embodiment, the registration / de-registration of the malicious call termination identification service is performed from the maintenance terminal 34. However, the termination switch 30 may be set so that the termination subscriber 40 can directly perform the registration. .

When the terminating switch 30 receives an incoming call from the calling subscriber 10 via the public telephone network 20, the terminating subscriber 4
Calling subscriber 1 sent from the calling side with a telephone number of 0
A calling subscriber number of 0 is received. The terminating exchange 30 refers to the malicious call database 33 using the received number of the called subscriber 40 as a key, and determines whether the called subscriber 40 has subscribed to the malicious call incoming call identification service.

If the called subscriber 40 has not subscribed to the malicious call incoming call discrimination service, a connection is made between the general ringing device 31 and the called subscriber 40 to make a call with a general ringing tone.

If the called subscriber 40 has subscribed to the malicious call incoming call discrimination service, the calling subscriber database of the calling subscriber 10 is further referred to by referring to the malicious call database 33 with the number of the called subscriber 40 as a key. It is determined whether the user is registered as a malicious call originator. At this point, since the telephone has not been registered yet, the terminating exchange 30 connects the general ringing device 31 and the called subscriber 40, and makes a call with the general ringing tone.

If the incoming subscriber 40 (the user) who received the call responds and determines that the incoming call is a malicious call, it transmits information indicating that the call is a malicious call to the terminating exchange 30. In this example, this information is a combination of hooking and a special number.

That is, the called subscriber 40 performs a hooking operation, and then a special number (for example,
Dial * 33 #). By properly setting the interface between the called subscriber 40 and the called exchange 30 (for example, digital time division), it is possible to obtain information indicating that the call is a malicious call only by a specific key operation. .

Upon receiving the information indicating that the call is a malicious call, the terminating exchange 30 stores the calling subscriber number of the calling subscriber 10 in the malicious call database 33 corresponding to the number of the called subscriber 40. Register as a malicious caller.

At this time, the terminating exchange 30 records the occurrence of a malicious call by marking the called subscriber number and the calling subscriber number on the maintenance terminal 34. FIG. 2 shows an example of this recording format. In FIG. 2, the called subscriber number (CA
The LLED SUB N =) is “35770102” and the calling subscriber number (CALLING SUB N =) is “3
5770100 ".

Thereafter, when there is a call to be received by the terminating subscriber 40 to which the malicious call termination discriminating service is provided, the terminating exchange 30 stores the malicious call database 33 based on the number of the terminating subscriber 40. It accesses and checks whether the calling subscriber number of the call is registered, that is, whether it is a malicious call. As a result of this check, if the calling subscriber number has been registered and it is determined that the call is a malicious call, the terminating exchange 30 connects the malicious call identification ringer 32 to the called subscriber 40, Sends a ring tone. Also, as described above, the maintenance terminal 3
4 records the occurrence of a malicious call.

When the called subscriber 40 (the user) knows that the ringing tone is a malicious call identification ringing tone, unlike a general ringing tone, the called subscriber 40 can know that the incoming call is a malicious call before answering. it can.

The user of the called subscriber 40 who knows that the incoming call is a malicious call before answering can take appropriate measures according to the situation. For example, do not answer incoming calls. Another person responds. Men respond if they harass women. To leave evidence of harassment, it is conceivable to prepare a recording and record.

[0030]

According to the present invention, since a ringing tone for malicious call identification that is different from a normal ringing tone is used when a malicious call is received, the receiving subscriber can determine whether the malicious call is received before answering. Can be determined. Also, when the exchange receives information indicating that the call is a malicious call from the called subscriber during a call, the calling subscriber registers the calling subscriber number in the database corresponding to the called subscriber's telephone number. It eliminates the need for the subscriber to memorize the malicious telephone number.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention.

FIG. 2 is a diagram showing an example of a recording format of occurrence of a malicious call.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Outgoing subscriber who issues a malicious call 20 Public telephone network 30 Terminating switch 31 General ringing device 32 Ringing device for malicious call identification 33 Malicious call database 34 Maintenance terminal

Claims (6)

[Claims] 1. A malicious call record database for recording a calling subscriber number of a malicious call corresponding to an incoming subscriber, a malicious call identification ringing device for outputting a ringing tone indicating a malicious call arrival different from a general ringing tone, At the time of incoming connection, receiving the calling subscriber number transmitted from the calling side together with the telephone number of the called subscriber, and confirming whether or not the received calling subscriber number is registered with reference to the malicious call record database. Means for determining that the call has been registered, determining that the call is a malicious call, connecting the calling subscriber to the ringing device for malicious call identification, and transmitting a ringing tone indicating the call termination. An exchange having a malicious call termination identification service function, comprising: And a maintenance terminal for printing out the telephone number of the called subscriber and the calling subscriber number transmitted from the calling party when the malicious call is determined during the incoming connection. An exchange having a malicious call termination identification service function according to claim 1. 3. The exchange having a malicious call termination identification service function according to claim 1, further comprising means for registering and canceling registration to the malicious call termination identification service for each called subscriber. 4. An exchange having the malicious call termination identification service function according to claim 1, 2 or 3, and an incoming call from the exchange, and when the incoming call is recognized as a malicious call, it is a malicious call. And a called subscriber for sending information indicating the calling subscriber number of the incoming call to a portion corresponding to the self-called subscriber number of the malicious call record database. 5. A method for identifying a malicious call termination of an exchange used for a termination station in a communication network, comprising: receiving an originating subscriber number transmitted from an originating side together with a telephone number of the terminating subscriber at the time of terminating connection; When information indicating that the call is a malicious call is received from a user, the calling subscriber number is registered in a database corresponding to the telephone number of the called subscriber, and thereafter, when the called subscriber receives an incoming call, , Referring to the database, confirming whether or not the received calling subscriber number is registered; if it is confirmed that the registered calling subscriber number is registered, it is determined that the call is a malicious call; A method for identifying a malicious call incoming call, wherein a ringing tone indicating an incoming call is transmitted, and a malicious call incoming call can be notified before the called subscriber answers. 6. When a malicious call is determined during the incoming connection, the telephone number of the received subscriber and the calling subscriber number transmitted from the calling side are printed out on the maintenance terminal. The malicious call incoming call identification method according to claim 5.