JP3066997B2 - Resource specification connection method by logical number - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a test control system in a call connection service of an intelligent network (hereinafter referred to as "IN"), and more particularly to a resource designation connection system based on logical numbers.

[0002]

2. Description of the Related Art In a current communication network, a telephone number (hereinafter referred to as DN) (0 + city code + city code +
Since the system is based on a system in which a call connection is made by translating a subscriber number), in an IN-related service, when a caller dials a logical number (hereinafter referred to as AN) (eg, 0120 ××××××), A control device in the network (hereinafter, referred to as NSP) (for example, "Suzuki: Advanced technology of intelligent network service, 1991 Federation of Electrical and Information Related Engineers S23-4.") Converts to DN and connects the call. It is carried out.

[0003] On the other hand, when performing a resource designation test such as a subscriber line test in maintenance of an exchange, it is performed using a DN. It was necessary to convert the AN to DN and perform a fault isolation test and the like.

When a test connection of a call between offices is performed, a maintenance person is present at both the originating exchange and the destination exchange, and is manually performed by the following procedure by telephone communication or the like.

(1) Destination DN corresponding to destination AN by originating maintenance person
From a form or the like.

(2) Retrieve the accommodated exchange from the destination DN from the form or the like, and retrieve the contact telephone number of the maintenance person.

[0007] (3) A telephone call is made to the receiving side maintenance person to request preparation for an incoming call test.

(4) The receiving side maintenance person sets a tester having a receiving function in the receiving side exchange and prepares for receiving a test call.

If the incoming line is a representative line, the lines other than the line to be tested are closed.

(5) The calling side maintenance person sets a testing machine having a calling function in the calling side exchange, and makes an outgoing connection with the AN.

(6) The receiving side maintenance person responds to the incoming call to the testing machine.

(7) A maintenance person who comes and goes talks and confirms the communication state.

[0013] If there is any inconvenience in the following procedure, a detailed fault isolation test is performed using various test machines.

[0014]

In the above-mentioned method, a manual operation for converting an AN to a DN is required in order to designate a resource, and the operation is complicated.

In the AN / DN conversion in the NSP, if the AN corresponds to the representative line, the AN
Since the conversion to N is converted to the "representative parent number", in order to perform the designated connection (reception) to the representative number, all the representative lines other than the test target line are blocked at the receiving side exchange and the test target line is performed. It was very inconvenient because it had to be designed to capture the mess.

The present invention has been made in view of the above points,
An object of the present invention is to specify a resource using an AN, and to automatically assign the resource in a test call connection by a maintenance operator while the other resources are in operation while the call is being connected. An object of the present invention is to provide a resource designation connection method using a logical number for realizing a method of incorporating.

[0017]

SUMMARY OF THE INVENTION A subscriber line of a subscriber line exchange in a communication network is provided with a different number AN from a DN.
When the originator dials the AN, the network device converts it to a DN and the inter-office connection carries the DN and relays the connection. Has a database that stores information on a plurality of network resources generally available for a plurality of DNs, and specifies an AN to specify a DN corresponding to the specified AN. By searching for information of resources in the network, selecting one of the searched resources, specifying one of the resources in the network to be tested, there is an indication to the exchange having the resource that the resource is a test call. Test to block only to receive incoming calls Remotely instruct to perform blockage, and make a remote control call from any subscriber accommodation position of any exchange to the specified AN The originating exchange instructed to originate the call sets a test call indication on the call and sends the call.The transit exchange carries the test call indication to the terminating exchange, and the terminating exchange converts the AN from the AN. In the process of terminating connection with the DN carried around at the time of inter-station connection, a terminating connection is made to the test-blocked resource.

[0018]

According to the present invention, a database in which network resource information relating to an AN is stored is prepared, and when a resource designation connection request is made by the AN, a resource such as a DN connectable by the AN is searched in the database. A specific resource is selected from the searched resources, the selected resource is remotely tested and closed, and an instruction is sent from any originating exchange to the AN to instruct the corresponding AN to transmit as a test call. The in-network equipment (eg, NSP) performs the same AN / DN conversion on the call as a general non-test call, relays the converted DN to the incoming call, and when the call arrives at the destination exchange, the resource that was tested and closed earlier , And collect and display the results.

An embodiment will be described below with reference to the drawings.

[0020]

FIG. 1 illustrates the principle of operation of the present invention.

A test terminal 1, a test control device 2, an originating exchange 3, an NSP 4, a transit exchange 5, and a destination exchange 6. When notified to the device 2, the test control device 2 searches the database for resources available in the AN and indexes it, notifies the test terminal 1 with the resource display 12, and specifies a specific resource in the test terminal 1. Then, the test control device 2 is notified by the resource designation 13, and the test control device 2 sends the originating DN instruction 22 and the test resource instruction 21 to the originating exchange 3 and the destination exchange 6 to perform a test preparation instruction, The receiving side exchange 6 tests and shuts down the resource, connects the tester thereto, returns a preparation end 61 to the test controller 2, and connects the tester to a position corresponding to the DN in the transmission side exchange 3. Test preparation completion 31 controller 2
After confirming the preparation completion 31 and 61, the test control device 2 issues a transmission instruction 23 to the originating exchange 3, transmits a test call from the originating exchange 3, transmits an AN notification 32 to the NSP 4, and the NSP 4 After performing the AN / DN conversion and notifying the originating exchange 3 of the DN notification 41, the originating exchange 3 sets a test call indication in the connection request 33 and transmits it to the transit exchange 5;
Connection request 51 with test call indication set up to destination exchange 6
The receiving side exchange 6 sees the test call display, makes the incoming call to the designated resource which has been closed before the test, and sends a response signal 62 from the receiving side exchange 6 to the transit exchange 5.
The connection operation is completed by returning the response signal 52 to the originating exchange 3 via the transit exchange 5 and the result reports 34 and 63 are reported from the originating exchange 3 and the destination exchange 6 to the test control device 2. In order to realize the designated connection method of notifying the test terminal 1 of the result display 24, the test control device 2,
The originating exchange 3, the destination exchange 6, and the transit exchange 5 have the following means.

The means of the test control device 2 are as follows.

(1) A database relating to identification information (DN) of resources managed in correspondence with the AN and a search means therefor.

Here, the database has, for each user who uses the communication network, information (hereinafter referred to as contract information) defining the use form of the communication network, and the contract information includes AN and DN.
Is not limited to one-to-one correspondence, and a plurality of DNs may correspond to one AN.

For example, when a representative line corresponds to one AN, a parent number and a plurality of child numbers correspond to each other. In a service for switching an incoming line for each time zone or transmission area, a plurality of DNs corresponding to each line are provided. Exists.

It is assumed that this database can record DNs that can be connected in correspondence with the AN, and display conditions at the time of connection.

(2) Means for designating any one of the resource groups corresponding to the AN (there is a method of displaying all the resource groups and allowing the maintenance person to select them at the test terminal 1 and a method of sequentially selecting them mechanically) .

(3) There is a database indicating the exchanges in which the specified resources exist, and by searching this database, information for executing the resource-specified connection (target DN and type of resource) is transmitted and received. means.

(4) Means for confirming completion of preparation and instructing the originating exchange requesting a test to transmit a test call.

(5) Means for receiving the reports of (8) and (10) described later and displaying them on the test terminal 1.

The means included in the terminating exchange 6 are as follows.

(6) The terminating exchange 6 has a function of receiving the information on the resource-specified connection of (3) above, and the exchange concerned establishes a preparation state for enabling the subsequent test call connection. Means.

The means for establishing the ready state are as follows.

The following states are set for the resources to enable a connection distinguishing a test call from a general call.

Empty state: a state in which the resource is not being used and the state transits to the in-use state when there is a resource use request, and can transit to the test closed state when a test block request is received.

In-use state: A state in which the resource is in use, and can be transited to an empty state by a resource release request, and can be transited to a test preliminary closed state when a test block request is received.

Test closed state: A state set by a test closed request when information on a resource-specified connection is received from a tester, and a call having a test call display set in (9) described later (test In this state, only a call can be received and a general call cannot be received.

The test blockage is limited to one location within a resource group (for example, a representative line group).

If there is a resource that has already been blocked for testing in the same group, when a test blocking request comes again from the test control terminal, this processing is terminated with "test not possible".

Test pre-blocking state: When a test control request is issued from a test control terminal or the like in the busy state, the test pre-blocking state is set and the call termination is monitored.

At the end of the call, the state transits to the test closed state.

(7) Means for making an incoming connection to a specified resource, that is, for the incoming call to the resource, it is determined whether or not a test call is displayed. In the case of a test call, a resource in a test closed state is selected and received. Means and means for answering incoming calls.

(8) The above-mentioned (6) for the test control device 2
A means for reporting the execution status of (7).

The means of the originating exchange 3 are as follows.

(9) The originating exchange 3 is a means for receiving a transmission instruction for a resource-specified connection and a means for transmitting a test call, that is, a test call is a call type for distinguishing from a general call in a transmission connection. Means for transmitting a test call to be notified by defining a specific coding in a signal format in the common channel signaling system when performing inter-station connection.

(10) The originating exchange 3 receives a response signal or the like of the test call to determine the connection status by the test controller 2.
Means to report to.

The means of the relay exchange 5 are as follows.

(11) Means having a function of relaying a test call indication included in an inter-station signal in connection of a test call.

[0049]

[Embodiment 1] IN system connection test including terminating terminal

When an IN service control signal appears on the ISDN user network interface, the receiving terminal (ISDN compatible) must have the processing function.

For this reason, when a caller reports a faulty incoming call failure, it is necessary to determine whether the receiving terminal is compatible with the network.

In this embodiment, a tester having a transmitting terminal function whose normal operation is guaranteed is connected to the calling side, an actual terminal which is a device under test is connected to the called side, and a test call is connected between these. ,
An example of a test for confirming the operation of an actual terminal remotely from a subscriber line signal monitor will be described.

The test procedure is described below.

FIG. 2 shows the configuration of the test system. The test terminal 1 and the test control device 2, the originating exchange 25, the NSP 26, the transit exchange 27, the destination exchange 28, the originating tester 240, the destination tester 212, It comprises an actual terminal 81, a common channel signaling network 9, and an information exchange network 230. The originating tester 240 is connected to the receiving position of the real terminal 211 on the originating side via a test drop-in circuit and performs a transmitting operation instead of the real terminal 211. The receiving side tester 212 monitors the subscriber line signal of the real terminal 81 and notifies the test controller 2 of the result.

FIG. 3 shows a test sequence.

(1) Input the AN to be received from the test terminal 1 and the DN of the transmitting terminal (this DN is known by hearing at the time of accepting the report).

(2) The test control device 2 distributes the information to the calling side and the receiving side separately, and when the receiving side has a representative line, the contract information is transmitted as shown in the operation principle of the present invention. Utilizing this, one DN is automatically or manually selected and notified.

The calling side information includes the calling DN, the called AN, the access number of the testing machine 240 and the test type, and the called side information includes the called DN converted from the AN, the access number of the testing machine 212 and the test type.

(3) The test machines 240 and 212 receive the test information, and the test machine 240 instructs the originating exchange 25 to report the real terminal 211 corresponding to the DN reported to the test terminal 241 (transmission pseudo terminal). And set the AN to be terminated.

The tester 212 instructs the destination exchange 28 to set the test line (for example, the real terminal 81 which is the destination terminal) specified by the destination exchange 28 in the test closed state.

When the preparation is completed in each of the test machines 240 and 212, a completion notification is returned to the test control device 2 respectively.

(4) The test control device 2 confirms both completion notifications and instructs the tester 240 to transmit.

(5) The tester 240 sends A to the originating exchange 25
A connection request is made at N.

The originating exchange 25 sends an N / D to the NSP 26.
NSP is requested, and the NSP 26 notifies the originating exchange 25 of the DN set corresponding to the AN.

(6) The originating exchange 25 connects to the transit exchange 27 or the destination exchange 28 via the DN, at which time the test call indication is set in the common channel signal format.

(7) In the receiving side exchange 28, when receiving a call,
Select a line in the test closed state and connect to it.

(8) If the real terminal 81, which is the destination terminal, is normal, a response signal is returned to the destination exchange 28, and the originating exchange 25 is notified via the interoffice signal to enter the talking state.

If the terminal is abnormal, the sequence is out of the normal sequence. If ISDN is used, a reason display (CAUSE) is notified to the tester 240, which is the originating terminal, by a detection function on the network side.

Also, the transmission / reception of signals between the real terminal 81 and the receiving side exchange 28 is monitored by the subscriber line signal monitor of the tester 212, and the result is reported to the test controller 2 so that the actual terminal 8 is monitored.
The state of 1 is grasped in detail.

(9) The tester 240 notifies the test controller 2 of the result (normal / abnormal of the terminal).

(10) The test control device 2 displays the result on the test terminal 1.

[0072]

Embodiment 2 IN-system connection quality measurement

An embodiment relating to a method of measuring the connection quality in IN in an arbitrary section will be described.

In this embodiment, a tester having a calling terminal function whose normal operation is guaranteed is connected to the calling side, and a testing machine having a receiving terminal function whose normal operation is guaranteed is connected to the receiving side. This is shown as an example of application to a quality measurement test in which the connection is connected by a test call and the connection delay time is measured by a tester on the transmitting side.

FIG. 4 shows the configuration of the test system, in which the test terminal 1 and the test controller 2, the originating exchange 45, the NSP 46, the transit exchange 47, the destination exchange 48, the originating tester 44, the destination tester 412, It is composed of a common channel signal network 9 and an information exchange network 43. The originating tester 44 is connected to the accommodation position of the real terminal 411 on the calling side via a test drop-in circuit, and can perform a transmitting operation instead of the real terminal 411. The receiving side tester 412 is connected to the receiving position of the real terminal 81 on the receiving side via a test drop-in circuit, and can perform a receiving operation instead of the real terminal 81.

FIG. 5 shows a test sequence.

The test procedure is described below.

(1) Input the AN to be received from the test terminal 1 and the DN of the transmitting terminal.

(2) The test control device 2 distributes the information to the calling side and the receiving side separately and notifies them. If the receiving side has a representative line, the contract information shown in the operating principle of the present invention is used. Then, one of the DNs is automatically or manually selected and notified.

(3) The testers 44 and 412 receive the test information, and the tester 44 pulls in the subscriber line (identified by DN) on the calling terminal to the test terminal 441 and sets the AN to be called.

The tester 412 notifies the called side exchange 48, and the called side exchange 48 sets the specified test line (for example, the real terminal 81) into the test closed state and pulls it into the test terminal 121.

When the preparation is completed in each of the test machines 44 and 412, a completion notification is returned to the test control device 2 respectively.

(4) The test control device 2 confirms both completion notifications and instructs the tester 44 to transmit a test call.

(5) The test call is sent to the NSP 46 by this instruction.
Is connected to the test terminal 121 of the tester 412 corresponding to the real terminal 81 which is the destination terminal via the AN / DN conversion.

(6) The tester 412 returns a response signal to the destination exchange 48, and is connected to the tester 44 via the inter-office signal to enter a call state.

At this time, the tester 44 monitors the completion / non-completion and measures the connection time of the IN call from the transmission time / response time or the disconnection time.

(7) The tester 44 notifies the test controller 2 of the result, and the test controller 2 displays the measurement result on the test terminal 1.

[0088]

[Embodiment 3] Busy test in IN service

Busy Examination Test (A
A test to confirm whether a busy tone is returned when dialing with N and whether it is truly busy or the terminal is malfunctioning)
Examples of the following will be described.

FIG. 6 shows the configuration of the test system, in which the test terminal 1 and the test control device 2, the originating exchange 65, the NSP 66, the transit exchange 67, the destination exchange 68, the destination tester 612, and the originating real terminal 611, When the real terminals 611 and 81 are already in a telephone call, the receiving tester 612 moves to the accommodation position of the real terminal 81 on the receiving side. In a test system in which the busy state is determined by measuring the electrical state of the subscriber line of the real terminal 81 connected via a test drop-in circuit, the test terminal 1 sends a signal A
By specifying N, the DN for the AN is searched,
An embodiment in which a busy test is performed on a DN that may be connected will be described.

This is an example in which a part of the AN / DN conversion, which is a part of the configuration requirements of the present invention, uses information of resources in the network.

FIG. 7 shows a test sequence.

(1) An AN for which a busy check is to be performed is input from the test terminal 1.

(2) The test control device 2 notifies the receiving side of the test information. If the receiving side has a representative line, the contract information is used as described in the operation principle of the present invention. One of the DNs (corresponding to the terminal 81) is automatically or manually selected and notified.

(3) The tester 612 instructs the destination exchange 68, and the designated test line (for example, 8
Check the line status for 1) (vacant, busy, etc.).

(4) The test device 612 notifies the test control device 2 of the result, and the test control device 2 displays the result on the test device 1.

(5) By examining all the DNs corresponding to the AN, the busy test as the AN is completed.

[0098]

As described above, by introducing the test method using the resource-designated connection method using the logical number of the present invention, the test service for IN-related services can
The task of converting N to DN can be automated, and even for a representative line, etc., it is possible to specify and test only the resources to be tested. Can be avoided.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating the principle of the present invention.

FIG. 2 is a diagram illustrating a test system configuration when testing the function of the receiving terminal according to the first embodiment;

FIG. 3 is a diagram showing a test sequence of the first embodiment.

FIG. 4 is a diagram illustrating a configuration of a test system when measuring an IN system connection delay time according to a second embodiment;

FIG. 5 is a diagram illustrating a test sequence according to a second embodiment.

FIG. 6 is a diagram illustrating a configuration of a test system when a busy test of an IN service according to a third embodiment is performed.

FIG. 7 is a diagram showing a test sequence in the third embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Test terminal 2 Test control device 3,25,45,65 Outgoing exchange 4,26,46,66 NSP 5,27,47,67 Transit exchange 6,28,48,68 Incoming exchange 9 Common line signal network 11 Start signal 12 Resource display 13 Resource designation 21 Test resource instruction 22 Caller's DN instruction 23 Transmission instruction 24 Result display 31, 61 Preparation end 32 AN notification 33, 51 Connection request 34, 63 Result report 41 DN notification 52, 62 Response 43, 63, 230 Information exchange network 211, 411, 611, 81 Real terminal 240, 44, 212, 412, 612 Test machine 121, 241, 441 Test terminal

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-56-54186 (JP, A) JP-A-3-214889 (JP, A) JP-A 4-329745 (JP, A) (58) Field (Int.Cl. ⁷ , DB name) H04M 3/26

Claims (1)

(57) [Claims] 1. A telephone line (DN) and another different number, a logical number (AN), are assigned to a subscriber line of a subscriber line exchange in a communication network, and a caller assigns a logical number (AN) to the subscriber line. AN) and dial the telephone number (DN) on the network device
In an inter-office connection, a telephone number (DN) is carried around and a resource-designated connection method using a logical number in a switching system in which a relay exchange connection is carried out. In general, a plurality of telephone numbers (AN) corresponding to a logical number (AN) are used. DN) generally has a database storing information on a plurality of resources in the network, and by specifying a logical number (AN), a telephone number (AN) corresponding to the specified logical number (AN) DN) and information on the resources in the network, and by specifying the searched resource, one of the resources in the network to be tested is designated, and a message indicating that the resource is a test call to the exchange having the resource. Indicate from a remote location to perform a test blockage to block only the call with a specified indication, and perform the above-mentioned designation from any subscriber accommodation position of any exchange by remote control. Instructs to originate with a logical number (AN), sets the test call indication on the call at the originating exchange that instructs to originate the call, and originates the call. The telephone number (DN) converted from the logical number (AN) at the local exchange and carried around when connecting the offices
In the step of terminating connection in step (a), a resource is connected to the test-blocked resource by a terminating connection.