KR100819314B1 - The analysis methods for call of Public Switch Telephone Network - Google Patents

Abstract

The present invention is to install a call quality meter at the end of the subscriber line connected to the exchange to measure the communication quality according to the incoming and outgoing calls, respectively, the calling party quality meter and the called party quality meter at the calling exchange and the called exchange. In the structure in which the calling exchange and the called exchange are connected to a quality measurement management system, the calling party quality measuring instrument and the called party quality measuring instrument download a measurement schedule from the quality measurement management system and perform a call connection procedure. Performing a first step; A second step of collecting measurement data generated in the course of the call connection procedure and generating a calling code and a called code based on the measured data and transmitting them to the quality measurement management system; The quality measurement management system generates a status code by combining the calling code and the called code, and then classifies the communication call and the fluorine call through a third step of analyzing call quality based on the status code. In this case, the cause of the fluoride can be easily identified.

By the above-described configuration / action, the present invention has an effect that can improve the communication quality of the general landline.

Description

The analysis methods for call of Public Switch Telephone Network}

1 is a block diagram of a measuring network to which a method for analyzing fluorine pain causes for landline telephones according to an embodiment of the present invention.

Figure 2 is a signal flow diagram showing a call path connection procedure for a landline telephone applied to the present invention.

Figure 3 is a flow chart for explaining a fluorine pain cause analysis method for a landline telephone according to an embodiment of the present invention.

<Description of Symbols for Major Parts of Drawings>

11: quality measurement management system 13,14: exchanger

15,16: Quality measuring instrument

The present invention relates to a method for analyzing the cause of fluorine pain in a wired telephone, and more particularly, to find out the cause of fluorine pain that may occur in a communication network, and to measure the quality between users to easily cause the cause of fluorine when a fluorine call occurs. It is a method of analyzing the cause of fluoride pain in a landline telephone that can be identified.

With the diversification of telecommunications operators, the era in which consumers can use telecommunications services by arbitrarily designating telecommunications carriers has come, so that telecommunications operators can secure customers only by providing better services to consumers.

As part of this, telecommunication service providers should provide consumers with high quality call quality, and in order to provide such quality of call, evaluation of current call quality should be made in advance. Meters were installed at exchanges across the country to measure quality periodically and to improve call quality using the measured results.

Conventional quality measurement methods were mainly designed for the communication quality management of general fixed line telephones such as pdd and dtd at the connection stage, transmission loss at the transmission stage, bit error rate, signal-to-noise ratio, phase jitter and line noise.

In addition, quality deterioration factors could be analyzed using signals generated from the network during measurement. However, in order to analyze the detailed deterioration factors in the access stage, a systematic analysis method is required by combining the calling party and the called party.

Accordingly, the present invention has been made to solve the above-described problems, the cause of fluorine communication for a wireline telephone to be able to measure the communication quality according to the incoming and outgoing call quality meter installed at the end of the subscriber line connected to the exchange The purpose is to provide analytical methods.

In order to achieve the above object, a method for analyzing a cause of fluorine communication for a wireline according to a preferred embodiment of the present invention includes installing a calling party quality meter and a called party quality meter on the calling exchange and the called exchange, respectively. 1. A method of connecting a side exchange and a called side exchange to a quality measurement management system such that the calling party quality meter and the called party quality meter can analyze the call quality by the quality measurement management system; A first step of the calling party quality measuring instrument and the called party quality measuring instrument downloading a measurement schedule from the quality measuring management system and performing a call connection procedure; A second step of collecting measurement data generated in the course of the call connection procedure and generating a calling code and a called code based on the measured data and transmitting them to the quality measurement management system; The quality measurement management system combines the calling code and the called code to generate a status code, and then analyzes the call quality based on the status code.

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Hereinafter, with reference to the accompanying drawings will be described an embodiment of the present invention in more detail.

1 is a configuration diagram of a measuring network to which a method for analyzing fluorine pain causes for a wireline according to an embodiment of the present invention is applied. The measuring network applied in the present invention performs a conventional telephone exchange function, which will be described below. 11) exchangers 13 and 14 for transmitting the communication quality measurement data collected under the control of 11) to the quality measurement management system and at the end of the subscriber line connected to the communicator 13 and 14, Collect the measurement data to generate the origination code and then transmit the origination code to the exchanger (13,14) and the quality measuring unit (15,16), and connected to the exchange (13,14) through a data transmission line Transmits a measurement schedule for communication quality measurement to the exchange 13 and 14, and receives and measures call quality measurement data at the time of incoming / outgoing measurement through the quality measuring instruments 15 and 16 according to the measurement schedule. Consists of a measurement quality control system (11) for measuring and managing the communication quality of the network is different.

Here, the exchanges 13 and 14 and the quality measuring instruments 15 and 16 are connected through subscriber lines connecting general wired subscribers, and the exchanges 13 and 14 are connected to each other with a plurality of other exchanges not shown in the figure. It constitutes a public switched telephone network (PSTN) that provides a communication network for general landline telephones.

The quality measuring devices 15 and 16 perform a series of operations for measuring communication quality to be described later in a state designated as a calling party quality measuring device and a called party quality measuring device.

2 is a signal flow diagram illustrating a call path connection procedure for a wireline telephone according to the present invention.

The quality measuring units 15 and 16 and the exchange units 13 and 14 shown in Fig. 2 basically perform the same functions as those described in Fig. 1, where the quality measuring unit 15 designated as the calling party originates a call and the called party is called. The quality measuring unit 16 performs a function of receiving a communication result, and the quality measuring unit 16 designated as the called party performs a function of receiving a call and transmitting the communication result to the calling party quality measuring unit.                     

In particular, the quality measuring devices 15 and 16 perform communication quality measuring operations by measuring schedules from the quality measuring management system 11 downloaded through the exchanges 13 and 14.

The calling party quality measuring instrument 15 is defined with 30 calling codes for classifying calling states, and the called party quality measuring instrument 16 is defined with 25 called codes for classifying incoming calls.

The calling code is defined as shown in <Table 1>, and the called code is defined as shown in <Table 2>.

division Occurrence Measurement Data Justice apply code Without LC, S, T monorail A 1.After detecting Line Current (LC) No W, ONHK, T Recovery B W None, BUSY / CONGESTION / WARNING, ONHK, T Signal misconnection (no dial tone) C W None, N / xDTMF, ONHK, T Signal misrecognition (outgoing mute) D 2. After receiving Dial Tone (W) W, no H, S, T Meter error E 3. After completion of dial (H) H, no RINGBACK / #, ONHK, T No response F H, BUSY, ONHK, T Misconnection G H, CONGESTION, ONHK, T Trunk runaway H H, WARNING, ONHK, T Signal misconnection I H, ANNOUNCEMENT, ONHK, T Announcement J H, RINGBACK, #none, ONHK, T Misconnection, #Unknown K 4. After receiving #, RINGBACK, * none, ONHK, T * Unrecognized (Poor ring) L #, RINGBACK, HOOK_ON_DES, ONHK, T restore M #, RINGBACK, CONGESTION, ONHK, T Signal misconnection N #, RINGBACK, WARNING, ONHK, T Signal misconnection, recovery O #, No RINGBACK, * None, ONHK, T * Unrecognized P #, No RINGBACK, HOOK_ON_DES, ONHK, T restore Q #, No RINGBACK, CONGESTION, ONHK, T Signal misconnection R #, No RINGBACK, WARNING, ONHK, T Signal misconnection, recovery S 5. After receiving 0001 * #, *, H (0001 *), HOOK_ON_DES, ONHK, T Termination during measurement (no signal recognition, measuring instrument error)                                                                                            (TimeOut during measurement) T #, *, H (0001 *), CONGESTION, ONHK, T U #, *, H (0001 *), WARNING, ONHK, T V #, *, H (0001 *), S, T W 6.After completing the H (0001 *) dial LC, W, H, #, 0001 *, PW ..., ONHK, T Normal measurement X LC, W, H, #, RINGBACK, 0001 *, ..., ONHK, T Normal measurement Y 7. Other In all other cases Etc Z ..., BRK, ONHK, T Break a ..., TQMS_MSG, ..., MODEM CONNEC ..., ONHK, T TQMS_MSG b ..., TQMS_MSG, ..., HOLDING TONE ..., ONHK, T TQMS_MSG (over line) c ..., TQMS_MSG, ... something ..., ONHK, T TQMS_MSG (Other) d

<Table 1> Calling Code

division Occurrence Measurement Data Justice code 1.Q No Ring No Q, OFHK, LINE_OFF_DES, ONHK, T monorail 11 No Q, OFHK, WRONG_CONNECTION, ONHK, T Misconnection 12 0001 * not received No Q, OFHK, H (#), H (0001 *), NO_RELEASE_DES, ONHK, T Recovery 13 No Q, OFHK, H (#), H (0001 *), HOOK_ON_ORG, ONHK, T Misconnection, Recovery 14 No Q, OFHK, H (#), H (0001 *), WARNING, ONHK, T Misconnection, Recovery 15 No Q, OFHK, H (#), H (0001 *), CONGESTION, ONHK, T Signal misconnection 16 On receiving 0001 * No Q, OFHK, H (#), H (0001 *), 0001 *, HOOK_ON_ORG, ONHK, T restore 17 No Q, OFHK, H (#), H (0001 *), 0001 *, WARNING, ONHK, T restore 18 No Q, OFHK, H (#), H (0001 *), 0001 *, CONGESTION, ONHK, T Signal misconnection 19 No Q, OFHK, H (#), H (0001 *), 0001 *, S, T TimeOut during Measurement 20 2. When Q 0001 * not received Q, OFHK, H (#), H (0001 *), HOOK_ON_ORG, ONHK, T Misconnection, Recovery 21 Q, OFHK, H (#), H (0001 *), WARNING, ONHK, T Misconnection, Recovery 22 Q, OFHK, H (#), H (0001 *), CONGESTION, ONHK, T Signal misconnection, recovery 23 Q, OFHK, H (#), H (0001 *), ONHK, T Misconnection, recovery 24 On receiving 0001 * Q, OFHK, H (#), H (0001 *), 0001 *, HOOK_ON_ORG, ONHK, T restore 25 Q, OFHK, H (#), H (0001 *), 0001 *, WARNING, ONHK, T restore 26 Q, OFHK, H (#), H (0001 *), 0001 *, CONGESTION, ONHK, T Signal misconnection 27 Q, OFHK, H (#), H (0001 *), 0001 *, S, T TimeOut during Measurement 28 3. After completion of measurement No Q, OFHK, H (#), H (0001 *), 0001 *, ..., ONHK, T normal 29 Q, OFHK, H (#), H (0001 *), 0001 *, ..., ONHK, T normal 30 4. Other In all other cases Etc 31 ..., BRK, ONHK, T Break 32 ..., TQMS_MSG, ..., MODEM CONNEC ..., ONHK, T TQMS measuring device 33 ..., TQMS_MSG, ..., HOLDING TONE ..., ONHK, T TQMS line error 34 ..., TQMS_MSG, ... sothing ..., ONHK, T TQMS Other MSG 35

<Table 2> Called Code

On the other hand, the exchange 13 operates as an originating exchange, and the exchange 14 operates as a called side exchange.                     

Hereinafter, a call path connection procedure in a general wired telephone network according to an embodiment of the present invention will be described in detail with reference to FIG. 2.

First, the calling party quality measurer 15 first hooks-off (S1) to measure communication quality (S1), and then the line current (LC: Line Current) to be transmitted from the calling party exchange 13 is applied. After waiting for the line current is transmitted (S2). After waiting for input of a dial tone (DT) to be input, if a dial tone is transmitted from the calling exchange 13 (S3), the dial is input (S4).

Subsequently, when the calling side exchange 13 requests a connection to the exchange 14 corresponding to the dialed called number, the called side exchange 14 passes the calling side exchange 13 to the calling party quality measuring instrument. Ring back tone (RBT) is transmitted to (15), and a ring current (Ring Current) is transmitted to the called party quality measuring device 16 (S6).

When the called party quality measuring device 16 is hooked off in response to the ring current (S7), the called party quality measuring device 16 sends a special signal, for example, a "#" button, to the calling party quality measuring device 15. The signal is transmitted (S8).

Accordingly, the calling party quality measurer 15 waits for the transmission of the special signal, for example, the "#" button signal, and then, when the corresponding "#" button signal is transmitted, determines that the call is normally established.

After that, when the calling party quality measurer 15 or the called party quality measurer 16 is hooked on, the established call path is released.

Here, the calling party quality measuring instrument 15 subdivides the number of cases that may occur in the step S1 to step S9, and the measured data collected through the call routing procedure described above among the calling codes defined as shown in Table 1 below. The originating code corresponding to the transmission is transmitted to the quality measurement management system 11 through the originating exchange 13.

The call measuring device 16 divides the number of cases that may occur in the step S6 to step S8 and the incoming call corresponding to the measurement data collected through the call connection procedure described above among the called codes defined as shown in Table 2 below. The code is transmitted to the quality measurement management system 11 through the destination exchange 14.

On the other hand, the quality measurement management system 11 analyzes the communication quality according to the origin / incombination by combining the calling code and the incoming code transmitted from the calling party quality measuring device 15 and the called party quality measuring device 16.

The status code according to the combination result of the calling code and the called code is defined as shown in Table 3.

Status Call code combination 0.Others 1. Outgoing disconnection A-11,12,13,14,15,16,21,22,23,24 2.Incoming disconnection K-11 3. Outgoing call recovery B-11,12,13,14,15,16,21,22,23,24 4. Incoming call reception G-13 5.No dial tone C-11,12,13,14,15,16,21,22,23,24 D-11,12,13,14,15,16,21,22,23,24 6.outgoing call K-12,13 7. No call response F-11,12,13,14,15,16,21,22,23,24 8.one-way arc L-21,22,23,24 M-22,23,24 N-21,22,24 O-21,23,24 P-21,22,23,24 Q-22,23,24 R-21, 22,24 S-21,22,23,24 9. Outgoing announcement J-11,12,13,14,15,16,21,22,23,24 10.runaway line H-11,12,13,14,15,16,21,22,23,24 11. Outgoing signal misconnection I-11,12,13,14,15,16,21,22,23,24 12.no ring L-14,15,16 M-15,16 N-14,15 O-14,16 P-14,15,16 Q-15,16 R-14,15 S-14,16 X-29 Y-29 13.Defective line K-24 K-14,15,16,21,23 G-11,12,14,15,16,21,22,23,24 14.Occurrence issue F to d 11 to 35

15 communication X-30, Y-30 16,25 16.End during measurement T-18,19,20,24,26,27,28,34 U-17,18,20,24,25,26,28,34 V-17,19,20,24,25,26,27, 28,34 W-17,18,19,20,24,25,26,27,28,34 X-34, Y-34 c-17-30,34 17.Measurement error (dial failure) E-11,12,13,14,15,16,21,22,23,24 18.No file 19.BRK generation call (calling party) a-11-28, 30-35 20.TQMS_MSG generation call (calling party) d-14 to 24, 33 21.Instrument error (select different line in C / S) 22.BRK generation call (receive side) A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, b, c, d-32 23.TQMS-MSG generation call (called party) A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W-35 24.Instrument error (MODEM) b-14,15,16,17,18,19,20,21,22,23,24,33 A, B, C, D, E, F, G, H, I, J, K, L, M , N, O, P, Q, R, S, T, U, V, W-33 25.HOLDING c-14,15,16,17,18,19,20,21,22,23,24,33 A, B, C, D, E, F, G, H, I, J, K, L, M , N, O, P, Q, R, S, T, U, V, W-34

<Table 3> Measurement Results

Hereinafter, with reference to the flowchart shown in Figure 3 will be described in detail the fluorine pain cause analysis method for a landline telephone according to an embodiment of the present invention.

First, by the measurement schedule downloaded from the quality measurement management system 11, the quality measuring devices 15 and 16 collect measurement data while performing the connection procedure described in FIG. 2 (S31), and the collected measurement. Based on the data, the calling code and the called code are generated by referring to <Table 1> and <Table 2>, respectively (S32), and the called code is transmitted to the quality measurement management system 11 (S33). .

Accordingly, the quality measurement management system 11 generates a status code as shown in Table 3 by combining the calling code and the called code transmitted from the quality measuring devices 15 and 16 (S34), based on the status code. To analyze the call (S35).

That is, the quality measurement management system 11, based on the combination state of the incoming and outgoing call code, the corresponding call communication call, disconnection call, dissatisfaction call, no response call, misconnection call, congestion call, guide broadcast call, signal misconnection call It is possible to analyze ring bad call and circuit bad call sequentially.

Therefore, the present invention can be analyzed by subdividing the cause of fluorine pain for a general landline.

According to the present invention as described above, the cause of the fluorine pain for the landline telephone can be easily analyzed by accurately checking the line condition that may occur when the call connection by installing a quality measuring device in the incoming / outgoing subscriber line, Has the effect of improving the communication quality of ordinary landline telephones.

On the other hand, the present invention is not limited to the above-described embodiment, but can be modified and modified within the scope not departing from the gist of the present invention, such modifications and changes should be regarded as belonging to the following claims. will be.

Claims (5)

The calling party quality measuring instrument and the called party quality measuring instrument are respectively installed in the calling exchange and the called exchange, and the calling exchange and the called exchange are connected to a quality measurement management system. A method for enabling a user to analyze call quality by the quality measurement management system; A first step of the calling party quality measuring instrument and the called party quality measuring instrument downloading a measurement schedule from the quality measuring management system and performing a call connection procedure; A second step of collecting measurement data generated in the course of the call connection procedure and generating a calling code and a called code based on the measured data and transmitting them to the quality measurement management system; The quality measurement management system comprises a third step of generating a status code by combining the calling code and the incoming code and then analyzes the call quality based on the status code. . The method of claim 1, The call connection procedure includes a process of transmitting line current and a dial tone sequentially when the calling party quality meter is hooked off, and when the calling party quality meter transmits a dial after receiving the dial tone, The called exchange transmitting the ringback tone to the calling party quality measurer while simultaneously transmitting the ring current to the called party quality measurer; when the called party quality meter hooks off, a call path is connected; A process of transmitting and receiving a predetermined signal for a test during a measurement quality between the measuring device and the called party and releasing the connected communication path when the calling party quality measuring device or the called party quality measuring device is hooked off. How to analyze the cause of fluoride pain in a telephone. The method of claim 1, The source code is a fluorine call cause analysis method for a wireline telephone, characterized in that 30 defined by subdividing the communication state that may occur in the call during the call connection procedure. The method of claim 1, The terminating code is a fluorine communication cause analysis method for a wireline, characterized in that defined by twenty-five by subdividing the communication state that may occur at the called party during the call connection procedure. The method of claim 1, The quality measurement management system distinguishes a communication call from a fluorine call based on a status code, and in the case of a fluorine call, analyzes the cause of the fluorine call.

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