Method and device for identifying and managing reasons for line disconnection

Abstract

The present invention discloses a method for identifying and managing reasons for line disconnection, including: a dictionary manager obtains and stores a dictionary of reasons for disconnection; the dictionary of reasons for disconnection includes a dictionary of reasons for line disconnection provided by a line operator and a dictionary of standard reasons for disconnection provided by an open source telephone exchange platform; when a line is disconnected, a matching manager obtains a line disconnection signal or a standard disconnection signal, matches the line disconnection signal or the standard disconnection signal with the reasons for line disconnection in the dictionary, and outputs the corresponding reasons for line disconnection after matching, otherwise an unknown reason for disconnection is output. In addition, the present invention also discloses a device for identifying and managing reasons for line disconnection. The technical solution of two dictionaries and three matches in the present invention is used to identify the reasons for line disconnection, which greatly improves the accuracy of identifying the reasons for line disconnection, and can identify the reasons for disconnection and make corresponding adjustments for unconnected calls.

Description

Technical Field

[0001] The present invention relates to the technical field of call centers, and in particular to a method and device for identifying and managing reasons for line disconnection. Background Art

[0002] In the prior art, it is very common for call center systems to count call results, such as counting connected calls and unconnected calls. However, call center systems usually only count the unconnected results of unconnected calls without counting the specific reasons for unconnected calls, so it is inconvenient to make targeted adjustments to unconnected calls. Even if some call center systems can identify the reasons for unconnected calls, there is still a problem of low recognition accuracy. Summary of the invention

[0003] Based on this, in order to solve the technical problems in the prior art, a line disconnection cause identification and management method is proposed, including:

[0004] The dictionary manager obtains and stores a dictionary of unconnected reasons; wherein the dictionary of unconnected reasons includes a dictionary of line unconnected reasons provided by a line operator and a standard dictionary of unconnected reasons provided by an open source telephone exchange platform;

[0005] The line unconnected reason dictionary is a dictionary consisting of one or more line unconnected communication signals and corresponding line unconnected reasons returned after the line is unconnected, and the line unconnected communication signal is provided by the line operator; the standard unconnected reason dictionary is a dictionary consisting of one or more standard unconnected communication signals and corresponding line unconnected reasons defined by the open source telephone exchange platform;

[0006] When the line is not connected, the matching manager obtains the line unconnected communication signal or the standard unconnected communication signal, and matches the line unconnected communication signal or the standard unconnected communication signal with the line unconnected cause in the unconnected cause dictionary. If the match is found, the corresponding matching line unconnected cause is output, otherwise an unknown unconnected cause is output.

[0007] In one embodiment, the matching operation includes a primary match, a secondary match, and a tertiary match;

[0008] In a matching process, when a line is not connected, a missed communication signal is returned. The matching manager matches the missed communication signal returned by the line with the missed line reason in the missed line dictionary. If a match is found, the matching manager outputs the corresponding missed line reason. Otherwise, the matching process proceeds to a secondary matching process.

[0009] In the secondary matching, when the line is not connected and the first matching fails, the matching manager uses the confirmatory factor analysis method to identify the disconnection reason of the disconnected line to obtain the corresponding standard disconnection signal, and matches the identified standard disconnection signal with the line disconnection reason in the standard disconnection reason dictionary. If a match is found, the corresponding matching line disconnection reason is output, otherwise the third matching is entered;

[0010] In the three matches, the matching manager first converts the line missed call signal returned by the line into the standard missed call signal of the open source telephone exchange platform, and matches it with the line missed call cause in the standard missed call cause dictionary. If the match is found, the corresponding matching line missed call cause is output, otherwise an unknown missed call cause is output.

[0011] In one embodiment, when the matching manager performs a matching operation, when the line unconnected signal or the standard unconnected signal matches the line unconnected cause in the unconnected cause dictionary, the corresponding matched line unconnected cause is output to the analysis adjuster, or an unknown unconnected cause is output to the analysis adjuster;

[0012] The analysis adjuster classifies the reasons for line failure, performs statistical analysis on the number and proportion of failed calls according to the classified reasons, and adjusts the outbound call operation according to the statistical analysis results.

[0013] In one embodiment, the analysis adjuster classifies the reasons for the line not being connected, and the categories of the reasons for the line not being connected include line reasons, data reasons, operation reasons, customer reasons, and other reasons;

[0014] Line reasons are the reasons for the failure to connect caused by line operator problems. You need to contact the line provider for negotiation. Line reasons include line failure and network busy.

[0015] The data reason is the reason for the failure to connect due to the outbound call data quality problem. You need to contact the data supplier to negotiate and solve the data quality problem. The data reasons include invalid number, call forwarding, empty number, wrong number, and system blacklist.

[0016] Operational reasons are the reasons for the failure to connect caused by internal operators, and the operation needs to be adjusted; operational reasons include out-of-town numbers need to add zeros, local numbers do not need to add zeros, no available lines, and task cancellation;

[0017] The customer reason is the reason for the failure to connect due to the customer's inconvenience in answering the call, and a re-call will be arranged; the customer reason includes service suspension, number preservation, power off, shutdown, call restriction, out of service area, user busy, no one answered, temporary inability to connect, call waiting, and continuous waiting during the call;

[0018] Other reasons are the reasons for the failure to connect that are still not identified after identification; other reasons include uncertain reasons, call failure, and unknown reasons.

[0019] In addition, in order to solve the technical problems in the prior art, a line disconnection reason identification management device is proposed, comprising a dictionary manager and a matching manager; the dictionary manager is connected to the matching manager;

[0020] The dictionary manager is used to obtain and store a dictionary of reasons for failure to connect; wherein the dictionary of reasons for failure to connect includes a dictionary of reasons for failure to connect provided by a line operator and a dictionary of reasons for failure to connect provided by an open source telephone exchange platform;

[0021] The line unconnected reason dictionary is a dictionary consisting of one or more line unconnected communication signals and corresponding line unconnected reasons returned after the line is unconnected, and the line unconnected communication signal is provided by the line operator; the standard unconnected reason dictionary is a dictionary consisting of one or more standard unconnected communication signals and corresponding line unconnected reasons defined by the open source telephone exchange platform;

[0022] Among them, the matching manager is used to obtain a line unconnected communication signal or a standard unconnected communication signal when the line is not connected, and match the line unconnected communication signal or the standard unconnected communication signal with the line unconnected cause in the unconnected cause dictionary. If the match is found, the corresponding matching line unconnected cause is output, otherwise an unknown unconnected cause is output.

[0023] In one embodiment, the matching operation includes a primary match, a secondary match, and a tertiary match;

[0024] In a matching process, when a line is not connected, a missed communication signal is returned. The matching manager matches the missed communication signal returned by the line with the missed line reason in the missed line dictionary. If a match is found, the matching manager outputs the corresponding missed line reason. Otherwise, the matching process proceeds to a secondary matching process.

[0025] In the secondary matching, when the line is not connected and the first matching fails, the matching manager uses the confirmatory factor analysis method to identify the disconnection reason of the disconnected line to obtain the corresponding standard disconnection signal, and matches the identified standard disconnection signal with the line disconnection reason in the standard disconnection reason dictionary. If a match is found, the corresponding matching line disconnection reason is output, otherwise the third matching is entered;

[0026] In the three matches, the matching manager first converts the line missed call signal returned by the line into the standard missed call signal of the open source telephone exchange platform, and matches it with the line missed call cause in the standard missed call cause dictionary. If the match is found, the corresponding matching line missed call cause is output, otherwise an unknown missed call cause is output.

[0027] In one embodiment, the line disconnection cause identification management device further includes an analysis adjuster; the analysis adjuster is connected to the matching manager;

[0028] Wherein, when the matching manager performs a matching operation, when the line unconnected communication signal or the standard unconnected communication signal matches the line unconnected reason in the unconnected reason dictionary, the corresponding matched line unconnected reason is output to the analysis and adjustment device, or an unknown unconnected reason is output to the analysis and adjustment device;

[0029] The analysis adjuster is used to classify the reasons for line failure, perform statistical analysis on the number and proportion of failed calls according to the classified reasons for failure, and adjust the outbound call operation according to the statistical analysis results.

[0030] In one embodiment, the analysis adjuster classifies the reasons for the line not being connected, and the categories of the reasons for the line not being connected include line reasons, data reasons, operation reasons, customer reasons, and other reasons;

[0031] Line reasons are the reasons for the failure to connect caused by line operator problems. You need to contact the line provider for negotiation. Line reasons include line failure and network busy.

[0032] The data reason is the reason for the failure to connect due to the outbound call data quality problem. You need to contact the data supplier to negotiate and solve the data quality problem. The data reasons include invalid number, call forwarding, empty number, wrong number, and system blacklist.

[0033] Operational reasons are the reasons for the failure to connect caused by internal operators, and the operation needs to be adjusted; operational reasons include out-of-town numbers need to add zeros, local numbers do not need to add zeros, no available lines, and task cancellation;

[0034] The customer reason is the reason for the failure to connect due to the customer's inconvenience in answering the call, and a re-call will be arranged; the customer reason includes service suspension, number preservation, power off, shutdown, call restriction, out of service area, user busy, no one answered, temporary inability to connect, call waiting, and continuous waiting during the call;

[0035] Other reasons are the reasons for the failure to connect that are still not identified after identification; other reasons include uncertain reasons, call failure, and unknown reasons.

[0036] Implementing the embodiments of the present invention will have the following beneficial effects:

[0037] The present invention identifies the reason for the line not being connected through two dictionaries and three matching schemes, which greatly improves the accuracy of identifying the reason for the line not being connected, and adds analysis of the reason for the line not being connected, so that the reason for the call not being connected can be identified and corresponding adjustments can be made. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0039] in:

[0040] Figure 1 It is a flow chart of the line disconnection cause identification and management method in the present invention;

[0041] Figure 2 It is a schematic diagram of the process of three-time matching in the present invention;

[0042] Figure 3 It is a schematic diagram of the line disconnection cause identification and management system in the present invention. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] The present invention discloses a method for identifying and managing the cause of line disconnection, comprising:

[0045] The dictionary manager obtains and stores a dictionary of unconnected reasons; wherein the dictionary of unconnected reasons includes a dictionary of line unconnected reasons provided by a line operator and a standard dictionary of unconnected reasons provided by an open source telephone exchange platform;

[0046] Obtain and determine the line no-connection reason dictionary through the line operator, and obtain and determine the standard no-connection reason dictionary through the open source telephone exchange platform;

[0047] The line unconnected reason dictionary is a dictionary consisting of one or more line unconnected communication signals and corresponding line unconnected reasons returned after the line is unconnected, and the line unconnected communication signal is provided by the line operator; the standard unconnected reason dictionary is a dictionary consisting of one or more standard unconnected communication signals and corresponding line unconnected reasons defined by the open source telephone exchange platform;

[0048] When the line is not connected, the matching manager obtains the line unconnected communication signal or the standard unconnected communication signal, matches the line unconnected communication signal or the standard unconnected communication signal with the line unconnected reason in the unconnected reason dictionary, and outputs the corresponding matched line unconnected reason if a match is found, otherwise outputs an unknown unconnected reason;

[0049] The matching operation includes one-time matching, two-time matching and three-time matching;

[0050] In a first match, when the line is not connected, a missed communication signal is returned, and the line missed communication signal returned by the line is matched with the line missed reason in the line missed dictionary. When a match is found, the corresponding line missed reason is output, otherwise, a second match is entered;

[0051] In the secondary matching, when the line is not connected and the primary matching fails, the confirmatory factor analysis method (CFA) is used to identify the disconnection reason of the disconnected line, and the identified standard disconnection signal is matched with the line disconnection reason in the standard disconnection reason dictionary. When a match is found, the corresponding line disconnection reason is output, otherwise the third matching is entered;

[0052] The standard missed call reason dictionary is provided by the open source telephone exchange platform, that is, the open source telephone exchange platform constructs a standard missed call reason dictionary for the standard missed call reason and the corresponding standard missed call signaling;

[0053] Specifically, the confirmatory factor analysis method is used to identify the voice broadcast after the current line is not connected to obtain the corresponding missed call signal code;

[0054] In particular, the open source telephone exchange platform is FreeSWITCH, which has a FreeSWITCH standard disconnection reason dictionary for line disconnection reasons;

[0055] In the three matches, the matching manager first converts the line missed call signal returned by the line into the standard missed call signal of the open source telephone exchange platform, and matches it with the line missed call reason in the standard missed call reason dictionary. If a match is found, the matching line missed call reason is output, otherwise an unknown missed call reason is output;

[0056] When the matching manager performs a matching operation, when the line unconnected communication signal or the standard unconnected communication signal matches the line unconnected reason in the unconnected reason dictionary, the corresponding matched line unconnected reason is output to the analysis and adjustment device, or an unknown unconnected reason is output to the analysis and adjustment device;

[0057] The analysis adjuster classifies the reasons for the line failure, performs statistical analysis on the number and proportion of failed calls according to the classified reasons, and adjusts the outbound call operation according to the statistical analysis results;

[0058] In particular, the analysis adjuster classifies the reasons for line non-connection, and the categories of line non-connection reasons include line reasons, data reasons, operation reasons, customer reasons, and other reasons;

[0059] Line reasons are the reasons for the failure to connect caused by line operator problems. You need to contact the line provider for negotiation. Line reasons include line failure and network busy.

[0060] The data reason is the reason for the failure to connect due to the outbound call data quality problem. You need to contact the data supplier to negotiate and solve the data quality problem. The data reasons include invalid number, call forwarding, empty number, wrong number, and system blacklist.

[0061] Operational reasons are the reasons for the failure to connect caused by internal operators, and the operation needs to be adjusted; operational reasons include out-of-town numbers need to add zeros, local numbers do not need to add zeros, no available lines, and task cancellation;

[0062] The customer reason is the reason for the failure to connect due to the customer's inconvenience in answering the call, and a re-call will be arranged; the customer reason includes service suspension, number preservation, power off, shutdown, call restriction, out of service area, user busy, no one answered, temporary inability to connect, call waiting, and continuous waiting during the call;

[0063] Other reasons are the reasons for the failure to connect that are still not identified after identification; other reasons include uncertain reasons, call failure, and unknown reasons.

[0064] In addition, the present invention also discloses a line disconnection reason identification management device, comprising a dictionary manager and a matching manager; the dictionary manager is connected to the matching manager;

[0065] The dictionary manager is used to obtain and store a dictionary of reasons for failure to connect; wherein the dictionary of reasons for failure to connect includes a dictionary of reasons for failure to connect provided by a line operator and a dictionary of reasons for failure to connect provided by an open source telephone exchange platform;

[0066] Obtain and determine the line no-connection reason dictionary through the line operator, and obtain and determine the standard no-connection reason dictionary through the open source telephone exchange platform;

[0067] The line unconnected reason dictionary is a dictionary consisting of one or more line unconnected communication signals and corresponding line unconnected reasons returned after the line is unconnected, and the line unconnected communication signal is provided by the line operator; the standard unconnected reason dictionary is a dictionary consisting of one or more standard unconnected communication signals and corresponding line unconnected reasons defined by the open source telephone exchange platform;

[0068] The matching manager is used to obtain a line unconnected communication signal or a standard unconnected communication signal when the line is not connected, and match the line unconnected communication signal or the standard unconnected communication signal with the line unconnected reason in the unconnected reason dictionary, and output the corresponding matched line unconnected reason if a match is found, otherwise an unknown unconnected reason is output;

[0069] The matching operation includes one-time matching, two-time matching and three-time matching;

[0070] In a matching process, when a line is not connected, a missed communication signal is returned. The matching manager matches the missed communication signal returned by the line with the missed line reason in the missed line dictionary. If a match is found, the matching manager outputs the corresponding missed line reason. Otherwise, the matching process proceeds to a secondary matching process.

[0071] In the secondary matching, when the line is not connected and the first matching fails, the matching manager uses the confirmatory factor analysis method (CFA) to identify the disconnection reason of the disconnected line to obtain the corresponding standard disconnection signal, and matches the identified standard disconnection signal with the line disconnection reason in the standard disconnection reason dictionary. If a match is found, the matching line disconnection reason is output, otherwise the third matching is entered;

[0072] The standard unconnected reason dictionary is provided by the open source telephone exchange platform, that is, the open source telephone exchange platform constructs a standard unconnected reason dictionary according to the line unconnected reason and the corresponding standard unconnected signaling;

[0073] Specifically, the matching manager uses a confirmatory factor analysis method to identify the voice broadcast after the current line is not connected to obtain a standard missed call signal corresponding to the reason for the unconnected call;

[0074] In particular, the open source telephone exchange platform is FreeSWITCH, which has a FreeSWITCH standard disconnection reason dictionary for line disconnection reasons;

[0075] In the three matches, the matching manager first converts the line missed call signal returned by the line into the standard missed call signal of the open source telephone exchange platform, and matches it with the line missed call reason in the standard missed call reason dictionary. If a match is found, the matching line missed call reason is output, otherwise an unknown missed call reason is output;

[0076] In particular, the line disconnection cause identification management device further includes an analysis adjuster; the analysis adjuster is connected to the matching manager;

[0077] When the matching manager performs a matching operation, when the line unconnected communication signal or the standard unconnected communication signal matches the line unconnected reason in the unconnected reason dictionary, the corresponding matched line unconnected reason is output to the analysis and adjustment device, or an unknown unconnected reason is output to the analysis and adjustment device;

[0078] The analysis and adjustment device is used to classify the reasons for the line failure, perform statistical analysis on the number and proportion of failed calls according to the classified reasons for the failure, and adjust the outbound call operation according to the statistical analysis results;

[0079] In particular, the analysis adjuster classifies the reasons for line non-connection, and the categories of line non-connection reasons include line reasons, data reasons, operation reasons, customer reasons, and other reasons;

[0080] Line reasons are the reasons for the failure to connect caused by line operator problems. You need to contact the line provider for negotiation. Line reasons include line failure and network busy.

[0081] The data reason is the reason for the failure to connect due to the outbound call data quality problem. You need to contact the data supplier to negotiate and solve the data quality problem. The data reasons include invalid number, call forwarding, empty number, wrong number, and system blacklist.

[0082] Operational reasons are the reasons for the failure to connect caused by internal operators, and the operation needs to be adjusted; operational reasons include out-of-town numbers need to add zeros, local numbers do not need to add zeros, no available lines, and task cancellation;

[0083] The customer reason is the reason for the failure to connect due to the customer's inconvenience in answering the call, and a re-call will be arranged; the customer reason includes service suspension, number preservation, power off, shutdown, call restriction, out of service area, user busy, no one answered, temporary inability to connect, call waiting, and continuous waiting during the call;

[0084] Other reasons are the reasons for the failure to connect that are still not identified after identification; other reasons include uncertain reasons, call failure, and unknown reasons.

[0085] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for identifying and managing the cause of line disconnection, characterized in that: include: The dictionary manager obtains and stores a dictionary of unconnected reasons; wherein the dictionary of unconnected reasons includes a dictionary of line unconnected reasons provided by a line operator and a standard dictionary of unconnected reasons provided by an open source telephone exchange platform; The line unconnected reason dictionary is a dictionary consisting of one or more line unconnected communication signals and corresponding line unconnected reasons returned after the line is unconnected, and the line unconnected communication signal is provided by the line operator; the standard unconnected reason dictionary is a dictionary consisting of one or more standard unconnected communication signals and corresponding line unconnected reasons defined by the open source telephone exchange platform; When the line is not connected, the matching manager obtains the line unconnected communication signal or the standard unconnected communication signal, matches the line unconnected communication signal or the standard unconnected communication signal with the line unconnected reason in the unconnected reason dictionary, and outputs the corresponding matched line unconnected reason if a match is found, otherwise outputs an unknown unconnected reason; The matching operation includes one-time matching, two-time matching and three-time matching; In a matching process, when a line is not connected, a missed communication signal is returned. The matching manager matches the missed communication signal returned by the line with the missed line reason in the missed line dictionary. If a match is found, the matching manager outputs the corresponding missed line reason. Otherwise, the matching process proceeds to a secondary matching process. In the secondary matching, when the line is not connected and the first matching fails, the matching manager uses the confirmatory factor analysis method to identify the disconnection reason of the disconnected line to obtain the corresponding standard disconnection signal, and matches the identified standard disconnection signal with the line disconnection reason in the standard disconnection reason dictionary. If a match is found, the corresponding matching line disconnection reason is output, otherwise the third matching is entered; In the three matches, the matching manager first converts the line missed call signal returned by the line into the standard missed call signal of the open source telephone exchange platform, and matches it with the line missed call cause in the standard missed call cause dictionary. If the match is found, the corresponding matching line missed call cause is output, otherwise an unknown missed call cause is output.

2. The line disconnection reason identification and management method according to claim 1, characterized in that: in, When the matching manager performs a matching operation, when the line unconnected communication signal or the standard unconnected communication signal matches the line unconnected reason in the unconnected reason dictionary, the corresponding matched line unconnected reason is output to the analysis and adjustment device, or an unknown unconnected reason is output to the analysis and adjustment device; The analysis adjuster classifies the reasons for line failure, performs statistical analysis on the number and proportion of failed calls according to the classified reasons, and adjusts the outbound call operation according to the statistical analysis results.

3. The line disconnection cause identification and management method according to claim 2, It is characterized in that The analysis adjuster classifies the reasons for the line failure, and the categories of the reasons for the line failure include line reasons, data reasons, operation reasons, customer reasons, and other reasons; Line reasons are the reasons for the failure to connect caused by line operator problems. You need to contact the line provider for negotiation. Line reasons include line failure and network busy. The data reason is the reason for the failure to connect due to the outbound call data quality problem. You need to contact the data supplier to negotiate and solve the data quality problem. The data reasons include invalid number, call forwarding, empty number, wrong number, and system blacklist. Operational reasons are the reasons for the failure to connect caused by internal operators, and the operation needs to be adjusted; operational reasons include out-of-town numbers need to add zeros, local numbers do not need to add zeros, no available lines, and task cancellation; The customer reason is the reason for the failure to connect due to the customer's inconvenience in answering the call, and a re-call will be arranged; the customer reason includes service suspension, number preservation, power off, shutdown, call restriction, out of service area, user busy, no one answered, temporary inability to connect, call waiting, and continuous waiting during the call; Other reasons are the reasons for the failure to connect that are still not identified after identification; other reasons include uncertain reasons, call failure, and unknown reasons.

4. A line disconnection cause identification and management device, characterized in that: It includes a dictionary manager and a matching manager; the dictionary manager is connected with the matching manager; The dictionary manager is used to obtain and store a dictionary of reasons for failure to connect; wherein the dictionary of reasons for failure to connect includes a dictionary of reasons for failure to connect provided by a line operator and a dictionary of reasons for failure to connect provided by an open source telephone exchange platform; The line unconnected reason dictionary is a dictionary consisting of one or more line unconnected communication signals and corresponding line unconnected reasons returned after the line is unconnected, and the line unconnected communication signal is provided by the line operator; the standard unconnected reason dictionary is a dictionary consisting of one or more standard unconnected communication signals and corresponding line unconnected reasons defined by the open source telephone exchange platform; The matching manager is used to obtain a line unconnected communication signal or a standard unconnected communication signal when the line is not connected, and match the line unconnected communication signal or the standard unconnected communication signal with the line unconnected reason in the unconnected reason dictionary, and output the corresponding matched line unconnected reason if a match is found, otherwise an unknown unconnected reason is output; The matching operation includes one-time matching, two-time matching and three-time matching; In a matching process, when a line is not connected, a missed communication signal is returned. The matching manager matches the missed communication signal returned by the line with the missed line reason in the missed line dictionary. If a match is found, the matching manager outputs the corresponding missed line reason. Otherwise, the matching process proceeds to a secondary matching process. In the secondary matching, when the line is not connected and the first matching fails, the matching manager uses the confirmatory factor analysis method to identify the disconnection reason of the disconnected line to obtain the corresponding standard disconnection signal, and matches the identified standard disconnection signal with the line disconnection reason in the standard disconnection reason dictionary. If a match is found, the corresponding matching line disconnection reason is output, otherwise the third matching is entered; In the three matches, the matching manager first converts the line missed call signal returned by the line into the standard missed call signal of the open source telephone exchange platform, and matches it with the line missed call cause in the standard missed call cause dictionary. If the match is found, the corresponding matching line missed call cause is output, otherwise an unknown missed call cause is output.

5. The line disconnection cause identification and management device according to claim 4, characterized in that: The line disconnection cause identification and management device further includes an analysis adjuster; the analysis adjuster is connected to the matching manager; Wherein, when the matching manager performs a matching operation, when the line unconnected communication signal or the standard unconnected communication signal matches the line unconnected reason in the unconnected reason dictionary, the corresponding matched line unconnected reason is output to the analysis and adjustment device, or an unknown unconnected reason is output to the analysis and adjustment device; The analysis adjuster is used to classify the reasons for line failure, perform statistical analysis on the number and proportion of failed calls according to the classified reasons for failure, and adjust the outbound call operation according to the statistical analysis results.

6. The line disconnection cause identification and management device according to claim 5, It is characterized in that The analysis adjuster classifies the reasons for the line failure, and the categories of the reasons for the line failure include line reasons, data reasons, operation reasons, customer reasons, and other reasons; Line reasons are the reasons for the failure to connect caused by line operator problems. You need to contact the line provider for negotiation. Line reasons include line failure and network busy. The data reason is the reason for the failure to connect due to the outbound call data quality problem. You need to contact the data supplier to negotiate and solve the data quality problem. The data reasons include invalid number, call forwarding, empty number, wrong number, and system blacklist. Operational reasons are the reasons for the failure to connect caused by internal operators, and the operation needs to be adjusted; operational reasons include out-of-town numbers need to add zeros, local numbers do not need to add zeros, no available lines, and task cancellation; If the reason is that the customer is not able to answer the call, a re-call will be arranged; Customer reasons include service suspension, number preservation, power off, out of service, call restriction, out of service area, user busy, no one answered, temporary inability to connect, call waiting, and continuous waiting during a call; Other reasons are the reasons for the failure to connect that are still not identified after identification; other reasons include uncertain reasons, call failure, and unknown reasons.

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