JPH06350700A - Test call connection system - Google Patents

Abstract

PURPOSE:To trace the same route as the actual occurrence of error at the time of test by preliminarily storing call connection information in a storage system and connecting a test call based on this call connection information at the time of the occurrence of error of call connection. CONSTITUTION:In the case of ordinary call connection, a call connection information gathering means 20 gathers information related to the connection route, namely, call connection information into a storage system 1 whether call connection is normal or not. If error is reported because of the abnormality of call connection, testers alpha and gamma are connected instead of terminals (a) and (c), and call connection information is successively read out by a call connection information read means 30 to realize the call connection of the same route as the call connection which is the object of the error report. That is, the route of call connection is stored at the time of originating a call, and this route is traced in accordance with stored contents at the time of test call connection, and therefore, a disconnection position is accurately recognized.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a test call connection system, and more particularly to a test call connection system when an error occurs.

[0002]

2. Description of the Related Art FIG. 5 is a conceptual diagram when a call is connected using an ordinary circuit network, and FIG. 6 is a flow chart thereof.

When there is a connection request from the calling terminal a under the control of the exchange A, the call connection means 10a of the exchange A analyzes the address to identify the exchange B to which the connection is to be made, and the free trunk line number (in this case). Hunt # 2 (Figure 1)
1, F1 → F2 → F3). After that, necessary call connection information, for example, the originating and terminating addresses are sent to the exchange B. If an error occurs at this time, the detecting means of the exchange A will detect that fact.

When a normal connection is made from the exchanges A to B, then the call connection means 10b of the exchange B to the exchange C.
The call connection means 10c is connected by the same procedure. At this time, if an error occurs, the exchange B notifies the exchange A of that fact. Further, the exchange C performs the incoming call process for the terminal c in the same procedure as described above.

Here, when the subscriber declares an error call, the test machines α and γ are connected instead of the terminals a and c, and the call connection from the test machine α to the test machine γ becomes normal. Whether or not it will be considered.

[0006]

According to the above-mentioned conventional method, the test machines α and γ are connected, and the exchanges A and B hunt the idle trunk line based on a call from the test machine α. It does not always hunt the same trunk as when the above error occurred. Therefore, the test is performed in a connection state different from the connection state in which the error actually occurs, and it is not possible to accurately grasp whether or not there is an abnormality in the relay line used when the error actually occurs.

The present invention has been proposed in view of the above conventional circumstances, and an object thereof is to provide a test call connection system capable of tracing the same route as when an error actually occurs during a test. is there.

[0008]

The present invention employs the following means in order to achieve the above object. That is, FIG.
As shown in, when an error occurs in the call connection at the call connection stage, in the test call connection system for connecting the test machines α and γ instead of the calling terminal a and the called terminal c to perform the test call connection,
The call connection information at the time of call connection is stored in the storage system 1, and the test call connection is performed based on the call connection information stored at the storage system 1 at the time of test call connection.

In order to realize the above method, the present invention provides
The following means are adopted. That is, the call connection information collecting means 20 for storing the call connection information for realizing the call connection in the storage system 1 at the stage of the call connection, the storage system 1 for storing the call connection information, and the above-mentioned at the time of the test call connection. It comprises call connection information reading means 30 for obtaining call connection information to be tested from the storage system 1 and giving it to the call connection means 10.

The above-mentioned call connection information collecting means 20 gives a serial number when collecting call connection information at the originating exchange, and then collects call connection information at the transit exchange and destination exchange.
The call connection information regarding the same call is collected in the storage system 1 using the serial number transmitted from the originating exchange or the transit exchange as an address. Further, the call connection information reading means 30 reads the call connection information from the storage system 1 using the serial number as an address together with the input of the test call connection command at the time of reading the call connection information at the originating exchange, and the call at the relay exchange and the destination exchange. When reading the connection information, the call connection information regarding the same call is read from the storage system 1 using the serial number transmitted from the originating exchange or the transit exchange as an address.

[0011]

In the normal call connection, the call connection information collecting means 20 collects the information about the connection route, that is, the call connection information in the storage system 1 regardless of whether the call connection is normal or not.

When an error is reported due to an abnormal call connection, the tester α, instead of the terminals a and c, is used as in the conventional case.
When γ is connected, the call connection information reading means 30
By the above, the call connection information is sequentially read out, and the call connection of the same route as the call connection for which the error is reported is realized.

[0013]

FIG. 2 is a functional block diagram of the present invention.
Shows the procedure in a flow chart.

First, when a call is made from the terminal a, the exchange A
The call connection means 10Aa is activated and address analysis is performed first as in the conventional case (FIG. 3, F11). The above call is made from terminal a
"Normal call" (different from test call) because the call originates from
(FIG. 3, F12). Here, when the call is the "normal call", the call connection information collecting means 20a is activated to hunt the serial number for specifying the call connection in the storage system 1 (F13 in FIG. 3), and the time when the call is made,
The source address and the destination address are written in the storage system 1 (F14 in FIG. 3).

Thereafter, as in the conventional case, the connection destination station is specified (FIG. 3, F14 → F16), and then the vacant trunk line number (# 2 in this case) is hunted. When the exchange B to be connected is specified by this, the number of the exchange B is stored in the storage system 1 by the call connection information collecting means 20a, and other matters relating to the exchange B, such as the trunk line number # 2 are also stored. It is stored in the storage system 1 by the call connection information collecting means 20a (FIG. 3, F17).

Then, by the call connection means 10Aa of the exchange A, a connection signal (address of call origination, destination, etc.) is sent from the exchange A to the exchange B through the vacant trunk line hunted as described above.
The serial number and the call type (normal call or test call, which is a normal call in this case) stored in the storage system 1 are also sent to the exchange B via the trunk line in the same manner as described above. Wait for a response. If the result is OK, it is input to the storage system 1 to that effect (FIG. 3, F1).
9a). Also, when the result is an error, the fact is input to the storage system 1 (FIG. 3, F19b).

Next, in the exchange B which has received the connection signal from the exchange A, the call connection means 10Ba operates to connect to the exchange C in the same procedure as the exchange A, but here, the serial number hunt (F13) is used. The step, the step of writing the time, the source address, and the destination address to the storage system 1 (F14) are omitted.

Therefore, the connection destination station (switch C) is specified (F15 in FIG. 3), and then an empty trunk line (# 1 in this case)
Is hunted (FIG. 3, F16), the call connection information collecting means 20b writes the trunk line number # 1 and the like in the storage system 1 in the matters relating to the exchange C.
At this time, the serial number sent from the exchange A is used as the address of the storage system, and the items relating to the exchange B are written after the items (1) to (3) written by the call connection information collecting means 20a of the exchange A.

Next, the call connection means 10Ba of the exchange B sends a connection signal from the exchange B to the exchange C through the vacant trunk line hunted as described above, and the serial number stored in the storage system 1 and the call type. (Normal call)
Is sent to the exchange C via the trunk line and waits for a response from the exchange C. Also in this case, the result is OK and the result error is written in the storage system 1 in any case.

As described above, in the call connection information from the terminal a to the terminal c, the matters relating to the exchange B are collected in the storage system 1. Next, in the exchange C, steps F12 to F17 in FIG.
The incoming call is processed. (FIG. 3F18). Thereafter, the call connection information collecting means 20 determines whether the above result is OK or an error.
It is adapted to be stored in the storage system 1 by c. Also in this case, the serial number transmitted from the exchange B to the exchange C is used as the address of the storage system 1.

Next, when an error occurs in the call connection and it is necessary to make a test connection, a test call registration is first made to the originating exchange A. That is, the complaint acceptance center confirms the serial number given to the call from the call time or the call address. Next, originating switch A
In addition, the tester α and the tester γ are connected to the exchange C instead of the terminals a and c. When the serial number is input from the tester α together with the command corresponding to “test call connection”, the call connection information reading means 30 of the exchange A is read.
a accesses the storage system 1 and collects the data of its own station having the above-mentioned serial number (source address, destination address, destination exchange B, relay line number # 2 in FIG. 2).

The test connection command is indicated, for example, by inputting a special number before the serial number. As a result, the test call registration is judged in step F12 of FIG. 3 and the test call connection means 10Ab is activated, and as shown in FIG. 4, the exchange is switched based on the data collected in the exchange A from the storage system 1 as described above. Connect to B. At this time, if the same trunk line as at the time of call connection when the error actually occurs is not free, the system waits until the trunk line becomes free (FIG. 4, F).
21 → F22). At this time, the serial number is transmitted to the exchange B together with the calling address. (FIG. 4, F23).

Next, when the exchanges A and B are connected, the call connection information reading means 30b of the exchange B accesses the storage system 1 based on the serial number (or the calling address or the called address) to connect to the exchange C. Data required for connection (destination switch C, trunk line number # 1 used)
Number). As a result, the test call connection means 1 of the exchange B is
0Bb operates and connects to the exchange C. (These are F21 to F23 in FIG. 4). When the exchanges A, B, and C are connected, the exchange C knows that the destination address (terminal C) is in its own station, so that the tester γ is not collected from the storage system 1 without collecting new information. Will be called.

In the process in which the tester α calls the tester γ in this way, if the switch B does not respond, it means that the line # 2 is disconnected and the switch C responds. If you do not do this, the # 1 line is disconnected.

As described above, the serial number is transmitted to the other exchange through the common line (relay line), but only the information necessary for call connection is transmitted through the common line as in the conventional case, and the serial number or the like is transmitted. The information necessary for collecting the call connection information of the invention may be transmitted from the storage system 1 to the partner exchange by accessing the storage system 1 at the same time as the call request. For example, when there is a call request from the exchange A to the exchange B, the exchange B can write new call connection information generated in the exchange B into the storage system 1 if the address of the call in the storage system 1 is known. . Therefore, the exchange A may access the storage system 1 at the same time as the above-mentioned call request, and transmit the exchange B to the exchange B with the serial number or the information with which the address of the call in the storage system 1 can be specified.

Further, although the storage system 1 is shown as one device in the drawing, it is usual that the exchanges passing through a certain call are dispersed in a wide area. Therefore, make sure that the storage devices located at different positions are connected by a line,
A configuration that operates as a single storage system as a whole can be adopted.

[0027]

As described above, according to the present invention, a call connection route is stored at the time of calling, and in the case of a test call connection, the connection route at the time of calling is accurately traced according to the stored contents. Since it is possible to do so, there is an advantage that the cutting position can be accurately grasped.

[Brief description of drawings]

FIG. 1 is a functional block diagram of the principle of the present invention.

FIG. 2 is a functional block diagram of an embodiment of the present invention.

FIG. 3 is a normal call flow diagram of the present invention.

FIG. 4 is a test call flow diagram of the present invention.

FIG. 5 is a conceptual diagram of a conventional example.

FIG. 6 is a flowchart of a conventional example.

[Explanation of symbols]

 a calling terminal c called terminal α, γ tester 1 storage system 10 call connection means 20 call connection information collection means 30 call connection information reading means

Claims (4)

[Claims] 1. When an error occurs in the call connection at the call connection stage, a tester (α), instead of the calling terminal (a) and the called terminal (c),
In a test call connection system in which (γ) is connected to perform a test call connection, call connection information at the time of call connection is stored in the storage system (1), and at the time of test call connection, the above storage system (1) A test call connection system characterized by performing a test call connection based on the call connection information stored in. 2. When an error occurs in the call connection at the step of call connection, the tester (α), instead of the calling terminal (a) and the called terminal (c),
In a test call connection system for connecting (γ) to perform a test call connection, a call connection information collecting means (20) for storing call connection information for realizing the call connection in the storage system (1) at the call connection stage. )
A storage system (1) for storing the call connection information, and a call connection information read-out which is given to the call connection means (10) after obtaining the call connection information to be tested from the storage system (1) at the time of test call connection. A test call connection system comprising: means (30). 3. The call connection information collecting means (20) adds a serial number when collecting call connection information at the originating exchange, and then collects call connection information at the transit exchange and destination exchange.
3. The test call connection system according to claim 2, wherein call connection information regarding the same call is collected in the storage system (1) using the serial number transmitted from the originating exchange or the transit exchange as an address. 4. The call exchange information reading means (30) reads out the call connection information from the storage system (1) using the serial number as an address together with the input of the test call connection command when the call exchange information is read by the originating exchange, and the relay exchange. 3. The test call connection system according to claim 2, wherein, when the call exchange information is read by the destination exchange, the call connection information regarding the same call is read out from the storage system (1) using the serial number transmitted from the originating exchange or the transit exchange as an address. .