JPH0528551B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to an exchange connection control operation test method for testing exchange connection control operation by software in a telephone exchange as one exchange unit via a subscriber line. It is something.

[Background of the Invention] Generally, newly developed exchange connection control programs require maintenance such as adding functions for many years afterward. It goes without saying that it is necessary to confirm the normality of functions, but also to confirm whether existing program parts can operate normally without being adversely affected by the addition of functions, etc., before adding functions, etc. The exam is about to be held again.

By the way, as an exchange connection control operation test using software in a telephone exchange, a pseudo call test and a test method in which a telephone terminal is manually operated in a predetermined manner are known. Among these, manual testing methods involve checking exchange connection control operations when normal and abnormal operations are performed in a predetermined order; however, all complex operating procedures can be automated. The reality is that it is becoming difficult to do so. In addition, if the test is performed manually, the person conducting the test is changed each time, or even if the same person tries to conduct the test after a considerable number of days, it is difficult to conduct the test under the same conditions as the previous time. It is becoming. Therefore, in view of these circumstances, manual testing methods require a lot of time to perform various tests, making it difficult to adopt them as testing methods.

On the other hand, in the case of simulated call tests, the simplest calls are generated in multiple numbers and only act as a background load on the telephone exchange, so we cannot expect many variations in call type. ing.

Apart from the above, Japanese Patent Application Laid-Open No. 57-21153 also discloses a call test method for digital exchanges, but in this call test method, the calls are controlled separately for both calling and receiving subscribers. That purpose has been achieved. Also, call confirmation is achieved by transmitting and receiving calls in both directions, using a specific frequency. Therefore, in the former case, it is necessary to perform the test procedure by synchronizing both the calling and receiving subscribers on the test equipment side, which inevitably complicates the test procedure.
In addition, in the latter case, even if the communication path is connected,
To determine whether the call path is correctly connected to the called party and to perform test procedures such as pre-empting the called party after the call path has been connected, it is necessary to perform the test procedures in the out channel (without going through the call path), and there is flexibility. Not only is this lacking in functionality, but test control programs are becoming increasingly complex.

[Object of the Invention] The first object of the present invention is to provide operational instructions to the called telephone from the calling telephone in an instantaneous manner under a simplified call confirmation test procedure, and to perform the operation by software in the telephone exchange. An object of the present invention is to provide a switching connection control operation test method that allows a test for switching connection control operation to be easily performed via a subscriber line outside a telephone exchange.

A second object of the present invention is to provide an exchange connection control operation test method that, in addition to the above object, can also check the operation of the exchange when a called party is called first.

[Summary of the Invention] To this end, the present invention basically provides that each time an originating subscriber line and a terminating subscriber line are sequentially selected, the originating subscriber line and the terminating subscriber line are selected. While connected to the test equipment, the test equipment sends a calling signal onto the calling subscriber's line, waits for confirmation of receipt of dial tone from the telephone exchange, and then dials the telephone number of the incoming telephone terminal. After the call is received, a call destination identification code is sent along with a control code to request at least a response confirmation from the call destination, after waiting for confirmation of reception/stop of ring backton signals from the telephone exchange. If the response code is received from the telephone exchange along with the destination identification code, the destination identification code is compared with the terminal telephone number of the called telephone terminal to confirm the destination of the call, while the called subscriber While monitoring the line, the test equipment waits for confirmation of reception of the ringing tone signal and, after an automatic response, sends a control code and destination identification code to request response confirmation from the telephone exchange. After confirming receipt of the call, the called party identification code is sent to the called party's subscriber line together with a response code indicating call confirmation, provided that the called party identification code matches the called telephone terminal telephone number. In this way, the exchange connection control operation in a telephone exchange is tested.

[Embodiments of the Invention] The present invention will be explained below with reference to FIGS. 1 and 2.

First, the relay system according to the present invention will be explained. FIG. 1 shows an overview of the relay system according to the exchange connection control operation test system according to the present invention.
In the figure, 1 is a telephone exchange (hereinafter simply referred to as an exchange), 2 is a calling telephone terminal (hereinafter simply referred to as a calling terminal), 3 is a receiving telephone terminal (hereinafter simply referred to as a receiving terminal), and 4 is a telephone exchange. , 5 are subscriber lines (hereinafter simply referred to as lines), and 6 are exchange connection control operation test equipment (hereinafter simply referred to as test equipment).

Of these, the test device 6 is directly related to the present invention, and is connected to the line 4 corresponding to the calling terminal 2 with a pseudo calling telephone unit (hereinafter simply referred to as a pseudo calling unit) 7 that simulates the operation of the calling terminal 2. On the other hand, it is connected to the line 5 corresponding to the receiving terminal 3 via an automatic response control unit (hereinafter simply referred to as response control unit) 8 that simulates the operation of the receiving terminal 3. It's summery. Various signals are sent from the pseudo transmitting section 7 to the exchange 1 via the line 4 under the control of the operation test control section (hereinafter simply referred to as the test control section) 9.
Response control unit 8 via addition line 4, exchange 1, and line 5
However, various responses from the exchange 1 and the response control unit 8 are monitored by the test control unit 9.
The purpose is to test various exchange connection control operations in the exchange 1 based on the monitoring results.

As mentioned above, in the conventional manual testing method, if you make a call from the calling terminal 2 and then dial the telephone number of the receiving terminal 3, the receiving terminal 4
It was possible to confirm the normality of various exchange connection control operations at exchange 1 under the condition that a line connection was established with high probability and that calls were possible. However, in the present invention, the test device 6 is used to confirm the normality.

More specifically, until the lines 4 and 5 are connected, various line signals are sent and received in a predetermined order between the pseudo calling section 7 and the response control section 8 via the exchange 1. At this time, the response control section 8 confirms the reception of the ringing tone from the exchange 1 and automatically responds, thereby connecting lines 4 and 5. After each line signal is converted into a logic code by the pseudo transmitter 7, it is monitored by the test controller 8, and as a result of the monitoring, a new line signal is sent from the pseudo transmitter 7, or an exchange connection control operation is performed. The normality/abnormality of the test is determined by the test control unit 8. If it is determined that the switching connection control operation is abnormal before lines 4 and 5 are connected,
At that point, the pseudo transmitting unit 7 sends a line disconnection signal, and the test for the transmitting terminal 2 and the receiving terminal 3 is completed. However, even if the lines 4 and 5 are connected, the Will the destination be terminal 3?
It has become necessary to confirm whether this is the case. In order to confirm the destination of the call, the pseudo caller 7 must be connected to one of the receivers, and the pseudo caller 7 should send a transfer request (for example, this signal format is
In response to the PB signal (same as the destination identification code described below), the destination identification code (specifically, the telephone number) is transferred from the destination to the pseudo caller 7, and then It is only necessary to compare the telephone number of the terminal 3 that has already been sent.
Therefore, if the lines 4 and 5 are connected normally, the response control unit 8 transfers the telephone number of the terminal 3 to the pseudo calling unit 7, and also transmits the telephone number of the terminal 3 that has already been sent. Since the test control unit 9 confirms that the lines 4 and 5 match, the normal connection between the lines 4 and 5 can be confirmed based on this match. In other cases,
That is, if the line 4 is not connected to the line 5 (misconnection), the response control unit 8 connected to the line 5 cannot receive the transfer request from the pseudo caller 7, and therefore, The destination identification code cannot be transferred. After all, the test control unit 9 can determine that there is an abnormal connection based on the fact that there is no destination identification code from the destination.

As described above, the test control unit 9 can determine whether the line connection is normal or abnormal, but if there is no need to check the operation of the called party (destination) when making a first call, the determination result is Regardless of the situation, at that point, the pseudo transmitter 7 sends out a call termination signal.
The tests related to the calling terminal 2 and the receiving terminal 3 are to be completed. However, if it is necessary to confirm the operation when calling the called party first, the pseudo calling unit 7 may send the called party first calling to the response control unit along with the transfer request described above, or after the transfer request. 8. In this way, from the pseudo transmitter 7 to the response controller 8
If this is actively controlled, it becomes possible to perform confirmation tests on new services (for example, three-party calls), incoming and outgoing calls, abnormal phenomena, etc., and the range of tests can be further expanded. When an instruction is given to call the called party first, the response control unit 8 sends a line disconnection signal after a certain period of time, and the test control unit 9 monitors the line signal from the pseudo caller 7. , it is possible to easily check the operation of the exchange 1 when the called party is first dialed.

Now, FIG. 2 shows a specific example of the exchange connection control operation test flow in the test device 6, but for the sake of reconfirmation, we will use this to explain the test operation according to the present invention in more detail. It is as follows. In the figure, the originating means in the flow section a refers to the test control section 9 and the pseudo transmitting section 7, and the destination means in the flow section b refers to the response control section 8.

That is, first, the lines 4 and 5 are connected to the pseudo caller 7 and the response controller 8, respectively, and the call signal is sent from the pseudo caller 7 to the exchange 1 via the line 4. . In response to this,
A dial tone is returned from exchange 1, but
After confirming receipt of this, the pseudo calling unit 7 automatically sends the telephone number of the receiving terminal 3 as dial information. Based on this dial information, the exchange 1 determines that the call is to the terminating terminal 3, and the exchange 1 sends a ringing tone to the terminating terminal 3 to call the terminating terminal 3, while the calling terminal 2 A ringback tone is sent to the caller to indicate that the call is in progress. Now, the reception of the ringing tone to the receiving terminal 3 side is confirmed by the response control unit 8, but if the response control unit 8 automatically responds to this call, the ringing tone to the calling terminal 2 side is confirmed. Since the transmission is also stopped, the test control section 9 knows that the line 4 has been connected to any line by confirming the stoppage.

As described above, with the line 4 and any other line connected, the test control unit 9 exchanges necessary information with the destination, thereby determining whether the destination is the destination terminal 3. It is possible to know whether or not. As shown in the figure, the pseudo oscillator 7 sends a control code (in this example,
If a called party identification code is sent along with a control code instructing the called party to call first, the response control unit 8 determines whether the called party identification code matches the telephone number of the called terminal 3. After confirming that the caller is present, a response code to the control code for requesting response confirmation is sent to the pseudo caller 7 via the exchange 1 together with the destination identification code. By comparing this destination identification code with the one that has already been sent, the test control unit 9 knows that the destination is the destination terminal 3 based on the comparison result. At this time, if no destination identification code is sent to the pseudo transmitter 7, it is determined that the connection is abnormal.

If the line connection is determined to be normal,
In addition, if necessary, switchboard 1 at the time of the called party's first call.
It is designed to confirm whether or not the operation is normal. In this example, the control code instructing the called party to call first has already been sent along with the control code requesting a response confirmation from the called party, but this can be sent at any time if necessary. ing. When the pseudo caller 7 sends out a control code instructing the called party to call first, the response controller 8 confirms the existence of the control code and sends a call termination signal after a certain period of time has elapsed. Based on this call termination signal, the exchange 1 sends a line disconnection signal to the pseudo transmitter 7, and the test controller 9
Then, it can be confirmed whether or not the operation of the exchange 1 is normal when the called party is called first.

[Effect of the invention] As explained above, according to the present invention,
Under the simplified call confirmation test procedure, while instructions to the called phone are sent from the calling phone in a single channel, the switching connection control operation by software in the telephone exchange is tested by a subscriber outside the telephone exchange. This can be done easily over the line, and in addition to these effects, it is also possible to check the operation of the exchange when the called party is dialed first.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing an overview of the relay method related to the switching connection control operation test method according to the present invention, and FIG.
FIG. 3 is a diagram illustrating an example of an exchange connection control operation test flow in the exchange connection control operation test apparatus according to the present invention. 1... Telephone exchange, 2... Calling telephone terminal, 3
...Incoming telephone terminal, 4, 5...Subscriber line, 6
. . . exchange connection control operation test device, 7 . . . pseudo-calling telephone unit, 8 .

Claims (1)

[Scope of Claims] 1. An exchange connection control operation in which a software-based exchange connection control operation test in a telephone exchange serving as an exchange unit is carried out with subscriber lines accommodated in the exchange connected to a testing device. In the test method, each time a calling subscriber line and a called subscriber line are selected in sequence, the calling subscriber line and the called subscriber line are connected to the testing equipment, and then the A calling signal is sent on the calling subscriber's line, and after waiting for confirmation of receipt of a dial tone from the telephone exchange, the telephone number of the receiving telephone terminal is dialed, and then a ring back tone signal is sent from the telephone exchange. Waiting for confirmation of reception/stop of the call, a called party identification code is sent along with at least a control code for requesting a response confirmation from the called party, and a response code for the control code is received from the telephone exchange together with the called party identification code. If the destination identification code is compared with the above-mentioned terminating telephone terminal telephone number to confirm the destination of the incoming call, while the terminating subscriber line is being monitored, the test equipment After waiting for confirmation of reception of the ringing tone signal and performing an automatic response, the control code for requesting response confirmation from the telephone exchange and the destination identification code are received and confirmed, and the destination identification code indicates that the call has been received. On the condition that the called party identification code matches the telephone terminal telephone number, the called party identification code is sent onto the called party's subscriber line together with a response code indicating call confirmation, and the switching connection control operation at the telephone exchange is performed. Switched connection control operation test method to be tested. 2. An exchange connection control operation test method in which a software-based exchange connection control operation test in a telephone exchange serving as an exchange unit is conducted with a subscriber line accommodated in the exchange connected to a test device, Each time a calling subscriber line and a terminating subscriber line are selected in sequence, the test device connects the calling subscriber line to the calling subscriber line while the calling subscriber line and the terminating subscriber line are connected to the test equipment. After the calling signal is sent and the telephone number of the incoming telephone terminal is dialed after waiting for confirmation of reception of dial tone from the telephone exchange, confirmation of receipt/stop of ringback tone signal from the telephone exchange is made. the destination identification code along with a control code to request a response confirmation from the destination.
Furthermore, if a control code instructing the called party to call first is sent, and a response code to the control code for requesting response confirmation is received from the telephone exchange together with a destination identification code, the destination identification code is After confirming that the telephone number matches the terminal telephone number of the receiving telephone, the call is terminated by waiting for a disconnection signal from the telephone exchange, while the receiving subscriber's line is being monitored, and the test equipment , After waiting for confirmation of reception of the ringing tone signal and performing an automatic response, the telephone exchange sends a control code for requesting response confirmation from the called party, a control code for instructing to call the called party first, and the called party. After confirming the reception of the identification code, the called party identification code is sent to the called subscriber's line along with a response code indicating call confirmation, provided that the called party identification code matches the telephone number of the called telephone terminal. A switching connection control operation test method in which the switching connection control operation at a telephone exchange is tested by sending a call termination signal after a certain period of time has elapsed.