JPS6348216B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a malicious call recording system in an automatic telephone exchange.

FIG. 1 is a relay system diagram of a conventional malicious call recording system. In Figure 1, TELA and TELB are extension telephones, SW is the switch network, IOT is the trunk within the local office, SWC is the switch controller, TKC is the trunk controller, REC is the malicious call recorder, and CC is the central controller. .

First, from the extension phone TELB to the extension phone
An internal connection is made to TELA, and the extension phone
During a call between a TELA subscriber and a TELB subscriber, if the TELA subscriber determines that the call from the TELB extension is a malicious call, the TELA subscriber will call the TELB extension phone.
A malicious call recorder REC is directly connected to TELA, and the contents of the malicious call are recorded by the malicious call recorder REC. However, this conventional malicious call recording method has the disadvantage of inefficient use of the malicious call recorder REC, and if the subscriber of the extension telephone TELA does not own the malicious call recorder REC,
The drawback is that the content of malicious calls cannot be recorded.

An object of the present invention is to provide a malicious call recording method that can efficiently record the contents of malicious calls for all extension telephones.

The malicious call recording method of the present invention connects a malicious call recorder connected to an automatic telephone exchange to the communication path of an extension telephone receiving a malicious call by a malicious call recording interrupt connection request signal sent from an extension telephone. The purpose is to make an interrupt connection through the switch network.

Next, embodiments of the present invention will be described with reference to the drawings. FIG. 2 is a relay system diagram of an embodiment of the present invention.

In FIG. 2, first, the extension telephone TELA is connected to the extension telephone TELB via the own trunk IOT by an intra-office connection. If the subscriber of the extension telephone TELA later determines that the call from the extension telephone TELB is a malicious call, the extension telephone
The TELA subscriber uses another telephone extension TELC to dial the malicious call recording interruption connection request number and the number of his telephone extension TELA receiving the malicious call. This dial connects the telephone extension TELC to the register trunk ORT, which connects it to the central controller via the trunk controller TKC.
Send dial pulse back to CC. This central controller CC determines whether the connection based on the received dial pulse is a general connection or a malicious call recording interruption connection, and if it is determined to be a malicious call recording interruption connection, the central controller CC sends the trunk controller TKC. Register trunk connected to extension telephone TELC via
Issue a special sound transmission command to ORT. As a result, the subscriber of the extension telephone TELA using the extension telephone TELC confirms that the malicious call recording interruption connection request dialed from the extension telephone TELC has been received. Meanwhile, the central controller CC sends an interrupt connection command to the switch controller SWC,
The extension telephone that controls the switch network SW and makes malicious calls to the extension telephone TELA
Interruptively connect the malicious call recorder REC to the communication path with TELB via the switch network SW. This allows the malicious call recorder REC to
The extension telephone TELB that makes the malicious call with the subscriber of
It becomes possible to record the content of calls with other subscribers.

As explained above, the present invention has the effect that by providing a malicious call recorder in an automatic telephone exchange, it is possible to efficiently use the malicious call recorder in all extension telephones.

[Brief explanation of the drawing]

Figure 1 is a relay system diagram of the conventional malicious call recording system.
FIG. 2 is a relay system diagram of an embodiment of the present invention. TELA, TELB, TELC……Extension telephone, SW
...Switch network, TKC...Trunk control device, SWC...Switch control device, CC...
Central control unit, IOT...Internal trunk, ORT
...Register trunk, REC...Malicious call recorder.

Claims (1)

[Claims] 1 Set the recorder connected to the automatic telephone exchange to
A malicious call recording interrupt connection request signal is sent from the extension telephone to the calling register via the switch network, and an interrupt connection is made via the switch network to the communication path of the second extension telephone receiving the malicious call. A malicious call recording method characterized by: