CN104735272B - The hold-up interception method and system of a kind of harassing call - Google Patents

Abstract

The embodiment of the present invention discloses a method for intercepting harassing calls. The method includes: obtaining a bill file, analyzing the user number in the bill file, determining that the user number is not in the preset white list, and determining When the user number meets the preset conditions, the user number is determined as a suspected number; the suspected number is dialed back, and the suspected number is determined to be a harassment number according to the callback result; a restriction instruction is sent to the application server, and the The application server restricts the services of the harassing number; the restriction instruction includes the harassing number. The embodiment of the invention also discloses a system for intercepting harassing calls. Adopting the technical solution of the embodiment of the present invention improves the interception efficiency of harassing calls, improves user experience, and effectively prevents the secondary operation of the Internet phone, avoiding the loss caused to the user due to the secondary operation of the Internet phone .

Description

A method and system for intercepting harassing calls

technical field

The invention relates to communication technology, in particular to a method and system for intercepting harassing calls.

Background technique

At this stage, the interception method for harassing calls is generally through the process of system screening, manual confirmation, manual interception and blocking, and manual unblocking, which is a simple and inefficient solution with more human participation. An effective solution for automatic identification, automatic confirmation and automatic interception has not yet been proposed.

Contents of the invention

In order to solve the existing technical problems, the embodiment of the present invention provides a method and system for intercepting harassing calls, which can realize the functions of automatic identification, automatic confirmation and automatic interception.

In order to achieve the above object, the technical solution of the embodiment of the present invention is achieved in this way:

An embodiment of the present invention provides a method for intercepting harassing calls, the method comprising:

Obtain the bill file, analyze the user number in the bill file, determine that the user number is not in the preset white list, and determine that the user number meets the preset conditions, determine the user number as a suspected number ;

Call back the suspected number in reverse, and determine that the suspected number is a harassment number according to the callback result;

Send a restriction instruction to the application server, and the application server restricts the service of the nuisance number; the restriction instruction includes the harassment number.

In the above solution, the preset condition includes: within a preset period of time, the number of calling calls of the user number is greater than a first preset threshold; or,

The number of calling calls of the user number is greater than the first preset threshold, and the duration of the calling call of the user number is greater than the second preset threshold, and the ratio of the number of called calls to the number of calling calls of the user number is less than a third preset threshold; or,

The number of calling calls of the user number is greater than the first preset threshold or the duration of calling calls of the user number is greater than the second preset threshold, and the ratio of the number of called calls to the number of calling calls of the user number is less than The third preset threshold.

In the above solution, the determining that the suspected number is a harassment number according to the callback result includes:

When the result of the callback is that the callback fails or the callback is directly disconnected, it is determined that the suspected number is a harassment number;

When the call-back result is normal connection, the voice file generated by recording the call process is matched with the voice file in the preset voice library, and the suspected number corresponding to the successfully matched voice file is determined as the harassment number;

When the result of the callback is that there is a ringback tone but not connected, the suspected number is periodically called back, and when the number of callbacks reaches a fourth preset threshold, the suspected number is determined to be a nuisance number.

In the above scheme, the method also includes:

Receive an instruction response result returned by the application server, and when the instruction response result is that the instruction is executed successfully, send the harassment number to a business support system, and the business support system sends a prompt message to the harassment number.

In the above solution, the restriction instruction further includes a service restriction recovery time limit for the harassing number.

In the above solution, the obtaining the bill includes: logging in to the application server according to a preset address of the application server, and obtaining the bill file from the application server.

An embodiment of the present invention also provides a system for intercepting harassing calls, the system comprising: a bill collection unit, a bill analysis unit, a reverse dial test unit, and an instruction transceiving unit; wherein,

The bill collection unit is used to collect bill files;

The bill analysis unit is used to read the bill file in the bill collection unit, analyze the user number in the bill file, determine that the user number is not in the preset white list, and determine that the When the user number meets the preset conditions, determine the user number as a suspected number, and send the suspected number to the reverse dial testing unit;

The reverse dial testing unit is used to reverse dial back the suspected number, and determine that the suspected number is a harassment number according to the dial back result;

The instruction transceiving unit is configured to send a restriction instruction to an application server, and the application server restricts the service of the nuisance number; the restriction instruction includes the harassment number.

In the above solution, the preset condition includes: within a preset period of time, the number of calling calls of the user number is greater than a first preset threshold; or,

The number of calling calls of the user number is greater than the first preset threshold, and the duration of the calling call of the user number is greater than the second preset threshold, and the ratio of the number of called calls to the number of calling calls of the user number is less than a third preset threshold; or,

The number of calling calls of the user number is greater than the first preset threshold or the duration of calling calls of the user number is greater than the second preset threshold, and the ratio of the number of called calls to the number of calling calls of the user number is less than The third preset threshold.

In the above solution, the reverse dial testing unit is used to determine that the suspected number is a nuisance number when the callback result is that the callback fails or the callback is directly disconnected; When the ring tone is not connected, the suspected number is periodically called back, and when the number of callbacks reaches the fourth preset threshold, it is determined that the suspected number is a nuisance number.

In the above scheme, the system also includes a speech comparison unit;

The reverse dial test unit is also used to send the voice file generated by recording the call process to the voice comparison unit when the callback result is normal connection;

The voice comparison file is used to match the voice file sent by the reverse dial testing unit with the voice file in the preset voice library, and determine the suspected number corresponding to the successfully matched voice file as a nuisance number.

In the above solution, the system further includes an information notification unit;

The instruction transceiving unit is also used to receive the instruction response result returned by the application server;

The information notification unit is configured to send the harassing number to a business support system when the command response result received by the command transceiving unit is that the command is executed successfully, and the business support system sends a prompt to the harassing number information.

In the above solution, the bill collection unit is configured to log in to the application server according to a preset address of the application server, and obtain the bill file from the application server.

The technical solution provided by the embodiment of the present invention realizes automatic identification, automatic confirmation and automatic interception of harassing calls through the system's preliminary screening, system secondary confirmation of harassing numbers, and interception of harassing numbers, avoiding manual confirmation and manual interception The process saves labor costs, improves the interception efficiency of harassing calls, improves user experience, and effectively prevents the secondary operation of Internet calls, avoiding the losses caused to users due to the secondary operations of Internet calls.

Description of drawings

FIG. 1 is a schematic diagram of a network architecture of an application scenario according to an embodiment of the present invention;

FIG. 2 is a schematic flow diagram of a method for intercepting harassing calls according to an embodiment of the present invention;

Fig. 3 is a schematic flow chart of a determination algorithm of a suspected number in an embodiment of the present invention;

FIG. 4 is a schematic diagram of the composition and structure of a system for intercepting harassing calls according to an embodiment of the present invention.

Detailed ways

Figure 1 is a schematic diagram of the network architecture of the application scenario of the embodiment of the present invention, as shown in Figure 1, under normal circumstances, ordinary end users 11 access the IMS network through the access device 12; A proxy server 13 is set up in the access side network, and the proxy server 13 is directly connected to an IP multimedia system (IMS, IPMultimedia Subsystem) network or through an integrated access device (IAD, Integrated Access Device)/private branch exchange (PBX, Private Branch Exchange) and other access devices 12 are connected to the IMS network, and serve as servers for personal computer (PC, Personal Computer) Internet phone terminals 14 or mobile phone Internet phone terminals 15; a number resource pool is equipped in the proxy server 13, when When a terminal is registered to the proxy server 13 and has a traffic demand, the proxy server 13 randomly allocates an idle number resource for each call of the user. The VoIP service provider sets a corresponding billing strategy to charge each call in order to reap huge profits. In the embodiment of the present invention, this phenomenon is referred to as the secondary operation of the IMS VoIP. VoIP through secondary operation has the following characteristics: extremely high calling frequency, extremely low calling frequency, extremely long calling time, extremely short calling time, abnormal reverse callback, etc. Therefore, as long as the user number that meets the above characteristics can be identified, it can be determined that the user number is a user number for harassing calls, and an instruction is further issued to the service platform to disable the call function of the user number to realize the function of blocking harassing calls .

The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

Fig. 2 is a schematic flow diagram of a method for intercepting harassing calls according to an embodiment of the present invention, as shown in Fig. 2 , comprising the following steps:

Step 201: Obtain the bill file.

Here, this embodiment can log in to the application server according to the preset address of the application server, and download the bill file from the application server; specifically, it can be downloaded from Obtain the CDR file from the application server.

Preferably, the time interval for obtaining the bill file can be set in advance, for example, 5 seconds, and the bill is obtained according to the time interval, and the obtained bill is stored in a specified directory.

Wherein, the bill file includes information such as user number, call time, call duration, calling party and called party.

Step 202: Analyze the user number in the bill file, determine that the user number is not in the preset white list, and determine that the user number meets the preset conditions, determine the user number as a suspected number.

Specifically, it is possible to read and obtain the bill in real time, and judge whether the user number in the bill is in the pre-selected white list, and the user number in the white list is determined to be the user number of a legal user; when the result of the judgment is If yes, directly analyze the next bill; when the judgment result is no, judge whether the user number meets the preset condition, and when the judgment result is yes, determine that the user number is a suspected number.

Here, the preset conditions are set according to the characteristics of the Internet telephony in secondary operation, including: the calling frequency is extremely high, the called call frequency is extremely low, the calling time is extremely long, and the called time is extremely short. The preset condition includes: within a preset period of time, the number of calling calls of the user number is greater than a first preset threshold; or,

The number of calling calls of the user number is greater than the first preset threshold, and the duration of the calling call of the user number is greater than the second preset threshold, and the ratio of the number of called calls to the number of calling calls of the user number is less than a third preset threshold; or,

The number of calling calls of the user number is greater than the first preset threshold or the duration of calling calls of the user number is greater than the second preset threshold, and the ratio of the number of called calls to the number of calling calls of the user number is less than The third preset threshold.

Wherein, the logical relationship between the preset conditions can be flexibly configured according to actual needs.

For example, statistics are made based on the bills generated by the user number within T (T>0) days. If the number of calling times of some user numbers exceeds N within the time period, and (or) the total call duration in the time period exceeds K, and the ratio of the number of calls to the number of calls is less than M, the user is judged The number is a suspected number.

Fig. 3 is a schematic flow chart of an algorithm for determining a suspected number in an embodiment of the present invention, as shown in Fig. 3 , comprising the following steps:

Step 301: Get (t, t+T), (t+P, t+P+T) ... (t+nP, t+nP+T) time period bills sequentially.

In this embodiment, T indicates that the bills are acquired in every T time period; P indicates that the time interval for each acquiring the bills is P; n indicates the number of times of acquiring the bills.

Step 302: Count the number of calls and call duration of all numbers except the user numbers in the preset list within each T time period;

Step 303: Determine whether the number of calls is greater than N; or, whether the number of calls is greater than N and/or whether the total duration of calls is greater than K, and if the result of the judgment is yes, proceed to step 304; otherwise, end the process.

Step 304: Judging whether the ratio of the number of called times to the number of calling times is greater than M. If the result of the judgment is yes, execute Step 305; otherwise, end the process.

Step 305: Mark the user number as a suspected number.

In this embodiment, the judgment process of the number of calls and the total duration of calls and the logical relationship between them can be flexibly configured according to actual conditions.

Step 203: Perform a reverse call back on the suspected number, and determine that the suspected number is a nuisance number according to the call back result.

Here, the determining that the suspected number is a nuisance number according to the callback result includes:

When the result of the callback is that the callback fails or the callback is directly disconnected, it is determined that the suspected number is a harassing number; here, the callback cannot be reached or the callback is directly disconnected, which can be manifested as no ring back tone or color ring Tone or call back directly disconnection and other scenarios;

When the result of the callback is that there is a ringback tone but not connected, periodically call back the suspected number, and when the number of callbacks reaches a fourth preset threshold, determine that the suspected number is a nuisance number;

When the call-back result is normal connection, the voice file generated by recording the call process is matched with the voice file in the preset voice library, and the suspected number corresponding to the successfully matched voice file is determined as the harassment number.

Here, the confirmed abnormal voice files are stored in the voice database, the voice files generated by recording the call process are matched with the voice files in the voice database, and the voice files and the voice database are determined by matching the call feature information. The voice file in is successfully matched, and the matching method described here is the prior art, and will not be repeated here.

Step 204: Send a restriction instruction to the application server, and the application server restricts the services of the nuisance number; the restriction instruction includes the harassment number.

In this embodiment, the acquired harassing number is sent to the application server through a restriction instruction, and the application server performs service restriction or blacklist processing on the harassing number; the service restriction may be outgoing call service restriction, etc.; Wherein, the restriction instruction also includes the service restriction recovery time limit or blacklist removal time limit of the harassing number, so that the system can automatically unblock the harassing number, avoid manual unlocking, and improve work efficiency.

Here, after sending the restriction command to the application server, the command response result returned by the application server is received, and when the command response result is that the command is executed successfully, the harassment number is sent to the business support system, and the business support system sends the Send a reminder message to the harassing number to remind the user of the harassing number that the service of the number has been restricted, making the user experience more humane;

When the result of the command response is that the command execution fails, a corresponding log is recorded.

Wherein, if a suspected number is judged as a nuisance number multiple times, the initial time of service restriction of the nuisance number is the time of the last determination.

Fig. 4 is the constituent structure schematic diagram of the intercepting system of the harassing call of the embodiment of the present invention, as shown in Fig. 4, described system comprises: call list acquisition unit 41, call list analysis unit 42, reverse dial test unit 43 and order transceiving Unit 45; where,

The bill collection unit 41 is used to collect bill files;

The bill analysis unit 42 is configured to read the bill file in the bill collection unit 41, analyze the user number in the bill file, determine that the user number is not in the preset white list, and determine When the user number meets the preset conditions, determine the user number as a suspected number, and send the suspected number to the reverse dial testing unit 43;

The reverse dial testing unit 43 is used to reverse dial back the suspected number, and determine that the suspected number is a nuisance number according to the dial back result;

The instruction transceiving unit 45 is configured to send a restriction instruction to an application server, and the application server restricts the service of the nuisance number; the restriction instruction includes the harassment number.

Wherein, the preset condition includes: within a preset period of time, the number of calling calls of the user number is greater than a first preset threshold; or,

The number of calling calls of the user number is greater than the first preset threshold, and the duration of the calling call of the user number is greater than the second preset threshold, and the ratio of the number of called calls to the number of calling calls of the user number is less than a third preset threshold; or,

The number of calling calls of the user number is greater than the first preset threshold or the duration of calling calls of the user number is greater than the second preset threshold, and the ratio of the number of called calls to the number of calling calls of the user number is less than The third preset threshold.

Preferably, the reverse dial testing unit 43 is used to determine that the suspected number is a nuisance number when the callback result is that the callback fails or the callback is directly disconnected; When the ring tone is not connected, the suspected number is periodically called back, and when the number of callbacks reaches the fourth preset threshold, it is determined that the suspected number is a nuisance number.

Preferably, the system also includes a speech comparison unit 44;

The reverse dial testing unit 43 is also used to send the voice file generated by recording the call process to the voice comparison unit 44 when the callback result is normal connection;

The voice comparison file 44 is used to match the voice file sent by the reverse dial testing unit 43 with the voice file in the preset voice library, and determine the suspected number corresponding to the successfully matched voice file as a nuisance number.

Preferably, the system further includes an information notification unit 46;

The instruction transceiving unit 45 is also used to receive the instruction response result returned by the application server;

The information notification unit 46 is configured to send the nuisance number to a business support system when the command response result received by the command transceiving unit 45 is that the command is executed successfully, and the business support system sends the nuisance number to the nuisance number Send reminder message.

Preferably, the bill collection unit 41 is configured to log in to the application server according to a preset application server address, and obtain the bill from the application server.

Specifically, the bill collection unit 41 can log in the application server according to the preset application server address, and obtain the bill from the application server; the bill analysis unit 42 reads the bill in the bill collection unit 41, Judging whether the user number in the bill is in the white list of pre-selected settings, the user number in the white list is determined to be the user number of a legal user; when the judged result is yes, directly analyze the next bill; When the result of the judgment is no, it is judged whether the user number meets the preset condition; when the result of the judgment is yes, it is determined that the user number is a suspected number, and the suspected number is sent to the reverse dialing unit 43 ;

The reverse dial testing unit 43 reversely dials back the suspected number, and when the dial back result is that the dial back fails or the dial back is directly disconnected, it is determined that the suspected number is a nuisance number; when the dial back result When there is a ringback tone but not connected, periodically call back the suspected number, and when the number of callbacks reaches the fourth preset threshold, determine that the suspected number is a nuisance number, and send the nuisance number to to the instruction transceiving unit 45;

When the call-back result is normally connected, the voice file generated by recording the call process is sent to the voice comparison unit 44, and the voice comparison file 44 is the voice file sent by the reverse dial test unit 43. Match with the voice file in the preset voice database, determine the suspected number corresponding to the successfully matched voice file as the harassment number, and send the harassment number to the instruction transceiver unit 45;

The instruction transceiving unit 45 sends the harassing number to the application server through a restriction instruction, and the application server restricts the service of the harassing number; The information is sent to the information notification unit 46, and the information notification unit 46 sends the nuisance number to a business support system, and the business support system sends prompt information to the nuisance number.

Those skilled in the art should understand that the embodiments of the present invention may be provided as methods, systems, or computer program products. Accordingly, the present invention can take the form of a hardware embodiment, a software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) having computer-usable program code embodied therein.

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It should be understood that each procedure and/or block in the flowchart and/or block diagram, and a combination of procedures and/or blocks in the flowchart and/or block diagram can be realized by computer program instructions. These computer program instructions may be provided to a general purpose computer, special purpose computer, embedded processor, or processor of other programmable data processing equipment to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing equipment produce a An apparatus for realizing the functions specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to operate in a specific manner, such that the instructions stored in the computer-readable memory produce an article of manufacture comprising instruction means, the instructions The device realizes the function specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions can also be loaded onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process, thereby The instructions provide steps for implementing the functions specified in the flow chart or blocks of the flowchart and/or the block or blocks of the block diagrams.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention.

Claims (8)

1. A method for intercepting crank calls is characterized by comprising the following steps:

the method comprises the steps of obtaining a ticket file, analyzing a user number in the ticket file, determining that the user number is not in a preset white list, and determining the user number as a suspected number when the user number is determined to meet a preset condition;

the suspected number is reversely dialed back, and the suspected number is determined to be a harassing number according to a callback result;

sending a limiting instruction to an application server, and carrying out service limitation on the harassment number by the application server; the limiting instruction comprises the harassment number; the limiting instruction also comprises service limitation recovery time limit of the harassment number;

wherein, the determining the suspected number as a harassing number according to the callback result includes:

when the callback result is that the callback is not on or the callback is directly disconnected, determining the suspected number as a harassing number;

when the callback result is normal connection, matching a voice file generated by recording the call process with a voice file in a preset voice library, and determining a suspected number corresponding to the successfully matched voice file as a harassment number;

and when the callback result is that the ring back tone exists but the suspected number is not connected, periodically callback is carried out on the suspected number, and when the callback times reach a fourth preset threshold value, the suspected number is determined to be a harassing number.

2. The method according to claim 1, wherein the preset condition comprises: within a preset time period, the calling number of times of calling of the user number is greater than a first preset threshold value; or,

the calling number of times of calling of the user number is greater than a first preset threshold, the calling duration of the user number is greater than a second preset threshold, and the ratio of the called number of times of calling of the user number to the calling number of times of calling is less than a third preset threshold; or,

the calling number of times of call of the user number is greater than a first preset threshold value or the calling duration of call of the user number is greater than a second preset threshold value, and the ratio of the called number of times of call to the calling number of times of call of the user number is less than a third preset threshold value.

3. The method of claim 1, further comprising:

and receiving an instruction response result returned by the application server, sending the harassment number to a service support system when the instruction response result is that the instruction execution is successful, and sending prompt information to the harassment number by the service support system.

4. The method of claim 1, wherein the obtaining the ticket comprises: logging in the application server according to a preset application server address, and acquiring a ticket file from the application server.

5. A harassing call intercepting system, characterized in that the system comprises: the call ticket acquisition unit, the call ticket analysis unit, the reverse dial testing unit and the instruction transceiving unit; wherein,

the call ticket collection unit is used for collecting call ticket files;

the call ticket analysis unit is used for reading a call ticket file in the call ticket acquisition unit, analyzing a user number in the call ticket file, determining that the user number is not in a preset white list, determining the user number as a suspected number when the user number is determined to meet a preset condition, and sending the suspected number to the reverse dial test unit;

the reverse dial testing unit is used for carrying out reverse callback on the suspected number and determining the suspected number as a harassing number according to a callback result;

the instruction receiving and sending unit is used for sending a limiting instruction to an application server, and the application server carries out service limitation on the harassment number; the limiting instruction comprises the harassment number; the limiting instruction also comprises service limitation recovery time limit of the harassment number;

the reverse dial testing unit is further used for determining the suspected number as a harassing number when the callback result is that the callback is not on or the callback is directly disconnected; when the callback result is that a ring back tone exists but the call is not connected, the suspected number is periodically called back, and when the callback times reach a fourth preset threshold value, the suspected number is determined to be a harassing number;

the system also comprises a voice comparison unit;

the reverse dial testing unit is also used for sending a voice file generated by recording the call process to the voice comparison unit when the callback result is normal connection;

and the voice comparison file is used for matching the voice file sent by the reverse dial testing unit with the voice file in a preset voice library, and determining a suspected number corresponding to the successfully matched voice file as a harassing number.

6. The system according to claim 5, wherein the preset conditions include: within a preset time period, the calling number of times of calling of the user number is greater than a first preset threshold value; or,

the calling number of times of calling of the user number is greater than a first preset threshold, the calling duration of the user number is greater than a second preset threshold, and the ratio of the called number of times of calling of the user number to the calling number of times of calling is less than a third preset threshold; or,

the calling number of times of call of the user number is greater than a first preset threshold value or the calling duration of call of the user number is greater than a second preset threshold value, and the ratio of the called number of times of call to the calling number of times of call of the user number is less than a third preset threshold value.

7. The system of claim 5, further comprising an information notification unit;

the instruction receiving and sending unit is also used for receiving an instruction response result returned by the application server;

and the information notification unit is used for sending the harassment number to a service support system when the instruction response result received by the instruction receiving and sending unit is that the instruction execution is successful, and the service support system sends prompt information to the harassment number.

8. The system according to claim 5, wherein the ticket collection unit is configured to log in the application server according to a preset application server address, and obtain a ticket file from the application server.