JPH02270462A - Switching board - Google Patents

Abstract

PURPOSE:To attain the leaving of sure recording usable when check of illegal act of the operator of an attendant board and other past information are required by sending a board identification number to an ANI request signal from a host exchange station. CONSTITUTION:When the operator of an attendant board 2 receives a call from a subscriber telephone set 3 and dials a toll connection call, the attendant board 2 receives an ANI request signal at its receiver 6 and sends a board identification number including a station number of a local exchange 1 accommodating the attendant board 2 and including a number of the attendant board 2 from a number transmitter 7. The board identification number to be sent is received by an AMA 5 of a relay exchange 4 and recorded part of detailed charging recording. Since talking date and time, talking time, caller number, called party number and charging information such as call class or the like are recorded as the detailed charging recording, it is clearly discriminated from which attendant board 2 of which local exchange 1 and when and where a call is made.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a switching board, and particularly to a switching board having a function of transmitting a board identification number including the office number of the switching center accommodating the switching board and the number of the switching board. Regarding the stand.

[Conventional technology]

When a conventional switchboard receives a calling party number transmission request signal (hereinafter referred to as the ANI request signal) from a higher-level switching center in the case of a base-originated outgoing connection call, the higher-level switching center transmits the caller's number instead of the machine identification number. A number that can be received and does not affect the signal sequence was sent arbitrarily.

[Problem to be solved by the invention]

The conventional switchboards mentioned above did not send a machine identification number in response to the ANI request signal from the upper switching center, so even if you needed to look at the detailed billing information in the future, you would not be able to see which station's There is a problem in that it is not known whether the call was made by the switchboard, and it is not useful when investigating fraudulent activity by the switchboard operator or in other cases where retrospective information is required.

The purpose of the present invention is to transmit a machine identification number in response to an A-NI request signal from a higher-level switching center, in cases where investigation of fraudulent activity by a switchboard operator or other retrospective information is required. The objective is to provide a switchboard that can be used to keep accurate records.

[Means to solve the problem]

The switchboard of the present invention is a switchboard having a function of connecting a long-distance call, and upon receiving a calling party number transmission request signal, the switchboard sets the office number of the switching center accommodating the switchboard and the number of the switchboard. This configuration has a function of sending out the machine identification number including the machine identification number.

〔Example〕

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

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

The local exchange 1 accommodates a switchboard 2 and subscriber telephones 3, and is connected to a higher-order trunk exchange 4.

The trunk exchange 4 is equipped with an detailed billing device (hereinafter referred to as AMA) 5 for long-distance calls. When the switchboard 2 originates a toll connection call, the receiving device 6 receives the ANI request signal sent by the AMA 5, and when the switchboard 2 receives the ANI request signal, it connects the local switchboard 1 that accommodates the switchboard 2. and a number sending device 7 that sends out a machine identification number including the number and the number of the switchboard 2.

Next, the operation will be explained.

Now, when the operator of the switchboard 2 receives a call from the subscriber telephone 3 and makes a long distance connection call, the AMA 5 sends out an ANI request signal. When the switchboard 2 receives this ANI request signal with the receiving device 6, the switchboard 2 sends out from the number sending device 7 a unit identification number that includes the office number of the local exchange 1 that accommodates the switchboard 2 and the number of the switchboard 2. . The sent machine identification number arrives at the relay exchange 4 via the interoffice trunk line, is received by the AMA 5, and is recorded as part of the detailed billing record.9 The detailed billing record includes the date and time of the call, Billing information such as call time, calling number, called number, call type, etc. is recorded, so by looking back at this record, you can determine which local exchange 1 and which exchange 2 it was from. You will be able to clearly see when and where the call was made.

〔Effect of the invention〕

As explained above, the present invention enables A
By sending the machine identification number in response to the NI request signal, it is possible to keep accurate records that can be used in investigations into fraudulent activity by switchboard operators or in other cases where retrospective information is required. There is.

[Brief explanation of drawings]

FIG. 1 is a block diagram of one embodiment of the present invention. 1...Local exchange, 2...Switchboard, 3
...Subscriber telephone, 4...Relay exchange, 5...Advanced billing device (AMA), 6...
. . . Receiving device, 7 . . . Number sending device. Agent Patent Attorney Oto Uchihara

Claims (1)

[Claims] In a switchboard having a function of connecting a long-distance call, when receiving a calling party number transmission request signal, a switchboard identification number including the office number of the switching center accommodating the switchboard and the number of the switchboard is sent. A switchboard characterized by having a function.