JPH04241559A - Line test system - Google Patents

Abstract

PURPOSE:To early disconnect a line, which is made abnormal by making into an unmanned state, and to precisely diagnose the cause of the abnormality. CONSTITUTION:In this line test system, the information of line abnormality transmitted from a communication network 1 is extracted by a line control and supervisory part and analyzed and when the fault is frequently generated although it is light and when the heavy fault is generated, the contents are stored in a memory. Then, a relevant trunk 5 is closed and the line is disconnected from an exchange 2 and detoured to the other trunk 5. The trunk 5 disconnected from the exchange is autonomously tested by a line testing device 3 and the cause is investigated according to the detailed reasons transmitted from the communication network 1. When the trunk can be recovered, the block of the trunk is canceled.

Description

[Detailed description of the invention]

0001

[Industrial Field of Application] The present invention relates to a line testing method for quickly isolating and testing a line where communication has not been performed normally using information including a cause indication sent through a comprehensive digital communication network. .

0002

BACKGROUND OF THE INVENTION Integrated digital communication networks operate quite differently from conventional analog public networks and operate on the D channel.

[0003] Therefore, when a failure occurs, it is necessary to install a protocol monitor device on the actual line and analyze the signal on the D channel.

[0004] As described above, even in integrated digital communication networks, testing methods for line failures are publicly known, and if a line malfunction is detected by a switching equipment tester or a test stand on the network side, a person can test the switching equipment or test stand. Since the operator was operating a machine, line abnormalities had to be diagnosed using limited information such as audible sounds.

[0005]

[Problems to be Solved by the Invention] The above-mentioned conventional technology does not give consideration to early isolation and diagnosis methods when a line abnormality occurs, and it takes time to diagnose because the cause is pursued using limited information. There was a problem that it took a while.

SUMMARY OF THE INVENTION An object of the present invention is to provide an unmanned line testing system that can quickly isolate line abnormalities and perform detailed diagnosis of the cause of the abnormality.

[0007]

[Means for Solving the Problems] In order to achieve the above object, the line testing method of the present invention includes a communication network that transmits information including a caller number and a reason display, a telephone set, and a multifunction terminal that accommodates the above information. A switch installed on the switch side to detect a line abnormality between the communication network and the switch, disconnect the line from the switch and test it autonomously, and when the fault is recovered, automatically test the line again. This system is equipped with a line testing device housed in the exchange.

[0008]

[Operation] The line test method of the present invention extracts information about line abnormalities from the information sent from the communication network, analyzes that information, and stores the details of the minor failure in memory in the case of a minor failure. However, if there are multiple minor failures or severe failures, the contents are stored in memory, the relevant trunk is blocked, the line is disconnected from the exchange, and the line is routed to another trunk.

[0009] Trunks disconnected from the exchange are independently tested using line testing equipment, and the cause is investigated based on the detailed information sent from the communication network.
As a result of the investigation, if the problem is caused by the communication network, the status will be monitored and if it is confirmed that the communication network has recovered, the blocked trunk will be released.

0010

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the line testing method of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing the overall configuration. In FIG. 1, a telephone or a multifunction terminal 4 is housed in an exchange 2 that accommodates a communication network 1 that sends information including a caller number and reason display, and
The exchange 2 is equipped with a line testing device 3. Furthermore, communication network 1
A trunk 5 is connected between the switch 2 and the switch 2.

The configuration of the line testing device 3 is shown in FIG. In FIG. 2, control information 6 including a caller number and reason display is input from a communication network 1 to a line control monitoring section 7.

Under the control of the central control unit 11, the line control monitoring unit 7 stores the failure information 8 including the cause indication in the failure content memory 9.
At the same time, the data is transferred to and stored in the central control unit 11, and the recorded contents of the fault content recording memory 9 are counted under the control of the central control unit 11.

[0014] Furthermore, when the count value of the counter 10 exceeds a predefined count value, the central unit 11 analyzes the content and, as a result of the analysis, determines that the obstacle is on the side of the communication network 1. A call is made via the line control unit 13 to the line where the line has become abnormal to check whether the abnormality on the communication network 1 side has been recovered. Note that 12 is a trunk blockage and blockage release signal output from the line control monitoring section 7 to the exchange 2. Further, the central control unit 11 sends an initial setting signal 14 to the trunk 5.

Next, the operation of the present invention will be explained along the flowchart of FIG. FIG. 3 is a flowchart showing the flow of internal processing of the line testing device 3.

[0016] A trunk 5 connects the communication network 1 that sends information including the caller number and cause indication and the exchange 2.
, the line is normally controlled normally, and the line control monitoring unit 7 confirms that the line operates normally.

In this state, if the line is normal in step S1, the process proceeds to the end step from the NO side in step S1, and the processing routine ends.

Further, in step S1, when the line becomes abnormal, the line control monitoring section 7 extracts the reason display sent from the communication network 1, and from the YES side of step S1, the process proceeds to step S2, and this step At S2, the failure information 8 including the cause indication is written into the failure content recording memory 9, and at the same time, the central control unit 11 is also notified.

In step S3, the central control unit 11 looks at the details of the fault and determines whether it is a serious fault or a minor fault. If the fault is a light fault as a result of the judgment, the process moves to step S4, and in step S4 the fault is A search is made to see if the content has occurred last time, and if it has not occurred last time, the processing step branches from the NO side and proceeds to an end step, and the processing routine ends.

[0020] In addition, in step S4, as a result of the above judgment, if there is an object with the same content of the fault, Y in step S4 is selected.
The process moves from the ES side to step S5, and this step S
5, the counter value of count 10 in the fault content recording memory 9 is updated.

If the updated counter value does not exceed the predefined value, the process exits from step S6 (NO), moves to the end step, and ends the processing routine.

Further, in step S6, if the counter value exceeds the defined value, Y in step S6 is determined.
The process proceeds from the ES side to step S7, and is processed in the same way as the serious failure process described below.

[0023] In step S3, the central control unit 1
1 is determined to be a serious failure as a result of determining the content of the failure, first, in step S7, a trunk blockage signal 12 is sent to the exchange 2 for the corresponding trunk. This prevents the trunk 5 from being captured in an invalid manner.

Thereafter, the process moves from step S7 to step S8, and the central control unit 11 reads out the contents of the fault content recording memory 9 and analyzes the reason for the fault.

Based on the analysis result, if it is determined in step S9 that the failure is on the communication network 1 side, in step S10 the central control unit 11 sends a call to the line where the line abnormality has occurred via the line control unit 13, and in step S11 It is checked whether the communication network 1 side has been restored or not. As a result of this check, if the communication network 1 side has not been restored, the process branches from the NO side of step S11 and returns to the process of step S10.

Further, as a result of the judgment in step S11, if it is confirmed that the communication network 1 side has been restored, the process moves from the YES side of step S11 to step S12, and in this step S12, a blockage release signal is sent to the corresponding trunk. 12 to exchange 2.

If it is determined in step S9 that the cause of the failure is on the exchange 2 side, the process moves from step S9 to step S13, and in this step S13, the initial setting signal 14 is sent to the corresponding trunk 5. Send.

After that, in step S14, the central control unit 11
sends a call to the line in which the line has become abnormal via the line control unit 13, and checks whether the trunk 5 has been restored in step S16. As a result of the confirmation, if the trunk 5 is restored, the process moves from the YES side of step S16 to step S12, and the blockage release signal 12 is sent to the exchange 2 for the corresponding trunk 5.
Send to.

[0029] If the recovery is not determined in step S16, the process moves from the NO side in step S16 to step S17, and the central control unit 11 autonomously sends a call to a pre-registered maintenance center via the line control unit 13. and report the details of the problem.

As described above, according to the present embodiment, by providing the line control monitoring section 7, the central control section 11, and the line control section 13, it is possible to automatically detect the case where communication is not performed normally. This has the advantage that the line can be disconnected from the exchange 2 and tested independently. Additionally, in the event of a failure, the detailed reason is recorded as information.

[0031]

As described above, according to the present invention, a line testing device is installed on the exchange side, and when a line abnormality occurs, the line testing device quickly isolates the line when it becomes independent, and the cause of the abnormality can be determined in detail. Since this system analyzes failures, even if a failure occurs, it is automatically detected, the line is disconnected from the exchange, invalid trunk capture is prevented, and the route is routed to another trunk.

[0032] Also, since the disconnected trunk is retested autonomously using the line test method of the present invention,
Once the fault is recovered, the trunk in question can be brought back to normal operation without any human intervention.

Furthermore, even if the faulty line cannot be restored, the details of the fault have been analyzed in detail, so maintenance personnel can easily diagnose the cause.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of an embodiment of the line test method of the present invention.

FIG. 2 is a block diagram showing the internal configuration of the line testing device in FIG. 1.

FIG. 3 is a flowchart showing the flow of internal processing of the line testing device in FIG. 2;

[Explanation of symbols]

1 Communication network 2　　　　　　Exchange machine 3. Line testing equipment 4. Telephone or multifunction terminal 5 Trunk 7 Line control monitoring section

Claims (1)

[Claims] 1. A communication network for transmitting information including a caller number and a cause indication, a switching equipment that accommodates a telephone and a multifunction terminal and exchanges the information, and a communication network installed on the switching equipment side,
A line testing device that detects a line abnormality between the communication network and the exchange, disconnects the line from the exchange and independently tests it, and autonomously re-accommodates the line in the exchange when the failure is restored. Line test method.