CN100474872C - Call controlling system and call controlling method - Google Patents
Call controlling system and call controlling method Download PDFInfo
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- CN100474872C CN100474872C CNB2006100019785A CN200610001978A CN100474872C CN 100474872 C CN100474872 C CN 100474872C CN B2006100019785 A CNB2006100019785 A CN B2006100019785A CN 200610001978 A CN200610001978 A CN 200610001978A CN 100474872 C CN100474872 C CN 100474872C
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Abstract
This invention relates to a call control system and a call control method, in which, said system includes: a test subsystem including a signaling test unit and a real time test unit, in which, the signaling test unit tests the signaling signals of the signaling link of an access system and triggers the real time test unit to test the calls with the call characters, a real time test unit tests the echo signal character of the call link to get the test result with the character meeting the test strategy and a call control strategy process unit gets the result tested by the subsystem to finish the call control, which combines the test to call link signaling with voice channel phone signals to realize the monitor to record phones without providing call source address.
Description
Technical field
The present invention relates to the calling detection technology, especially a kind of calling via telecommunications network is detected and then call out the system of control and a kind of calling-control method.
Background technology
In the Internet, the function that a lot of browsers have possessed real-time detecting advertisement and filtered; Corresponding option also can be set in E-mail receiver/send system to be detected spam and rejects.
As the communication system of maturation, it is big that public switch telephone network (PSTN, Public Switched telephonenetwork) has coverage, and it is perfect that system builds, and business provides characteristics such as abundant; And, the PSTN communication network of nearly all country interconnects in the world, formed the communication network of global open, therefore, any one PSTN terminal use can select different modes to be linked in the telecommunications network anywhere, enjoyment is by the various types of communication service business that communication network provided, and the terminal called user who leads to towards all-network provides communication function.
Yet along with popularizing that telecommunications network is used, to the management of telecommunications network operation order also all the more difficulty.The for example chaotic operation of the networking telephone, the appearance of carrying out the problems such as issue of advertisement with phone as carrier has all seriously influenced the operating environment of telecommunications network, and has brought inconvenience for the telecommunications network user.
At present, for the monitoring of phenomenons such as the illegal advertisement of phone, also, perhaps simply judge in the telecommunications network, carry out methods such as manual type recording evidence obtaining again, to assist to carry out the management of telecommunications network order according to known calling number just according to customer complaint.
Owing to also there is not effectively to carry out at present the technical scheme of calling detection, thereby said method is adopted more at large, the defective of this method is: it has adopted the detection method of passive type, promptly rely on customer complaint or known calling number that calling is monitored, yet, along with the development of technology, do not have authentic and valid calling number usually in the illegal calling, thereby existing detection means success rate is lower; And for the illegal calling of new generation, existing means can not find timely that more identification and the detection that can't call out fast, thereby the real-time of existing means and initiative are relatively poor in occurent calling.
From the technical standpoint analysis, needing the object of emphasis monitoring in the telecom operation management is the calling of telegraphone for the phone source, described telegraphone can be from the PSTN terminal, also can be from computer audio communication equipment and IP phone packet transmitting apparatus, the approach that such telegraphone inserts telecommunications network comprises: the calling in the PSTN net, and perhaps by VoIP, special line IP etc.For these reasons, need a kind of identification from numerous callings that can be real-time to have the detection method of the calling of above-mentioned feature at present.
Summary of the invention
For addressing the above problem, the purpose of this invention is to provide a kind of calling detection method, the calling that this method can real-time detection has above-mentioned feature; Accordingly, the present invention also provides a kind of call control system that adopts this method.
For solving the problems of the technologies described above, the objective of the invention is to be achieved through the following technical solutions.
A kind of call control system comprises: detection subsystem, described detection subsystem comprise signaling detecting unit and real-time detecting unit; Wherein, the signaling detecting unit detects the signaling-information of the signaling link of connecting system, and the strategy according to presetting triggers real-time detecting unit the calling with definite call features is detected; Real-time detecting unit detects the echo signal feature of call link, obtains the testing result of feature coincidence detection strategy; The call control strategy processing unit obtains the result of the detection of detection subsystem, finishes according to the strategy that presets and calls out control.
On the said system basis, described detection subsystem also comprises the speech detecting unit; Described real-time detecting unit further sends to described speech detecting unit with the testing result of feature coincidence detection strategy, the speech detecting unit calls sonagram pattern matching function and carries out the speech content detection to determining to call out, and obtains the testing result of coincidence detection strategy.
On the said system basis, described system also comprises the speech collecting unit; And described call control process unit triggers the speech collecting unit according to the strategy that presets the speech of determining call link is gathered.
A kind of calling-control method, comprise: the signaling-information to the signaling link that gets access to detects, according to the strategy that presets, for calling with first signaling feature, echo signal characteristic to call link detects, obtain the testing result of feature coincidence detection strategy, and finish calling control according to the strategy that presets.
On the said method basis, further comprise: for the calling that does not have echo signal in the call link, then further, voice signal and the speech samples that presets are compared, call sonagram pattern matching merit and carry out the voice content detection, if the match is successful, then trigger the abnormal call processing is carried out in this calling.
In the said method, if having the echo inhibition, the echo signal of described call link handles the back signal characteristic, then further, voice signal and the speech samples that presets are compared, call sonagram pattern matching merit and carry out the voice content detection, if the match is successful, then trigger the abnormal call processing is carried out in this calling.
Further, for calling, trigger abnormal call and handle with second signaling feature.Described abnormal call is handled and is comprised: gather determining the voice signal of calling out.
In the said method, in call establishment or call setup carry out detection after finishing based on the voice signal echoing characteristic.
Above technical scheme combines because call link signaling of the present invention detects with the detection of speech channel voice signal as can be seen, can realize the monitoring to telegraphone under the situation that the call source address is not provided.
Further, the present invention proposes three grades of detection architecture, promptly signaling detects, phonic signal character detects, three kinds of detections of speech channel content detection combine.The thinking of this system is strong feature and the weak feature according to the telegraphone performance, call signaling information and speech channel information to magnanimity are carried out the classification processing, strong feature is easy to detect rapidly but can not finishes final location, be suitable for the processing of magnanimity information, weak feature is difficult to detect but can finishes final location, is suitable for less amount of information and necessary pinpoint processing.Can improve the reliability and the accuracy of detection to a great extent by the detection architecture of classification, reduce the system applies cost.
And, detection method of the present invention is except can effectively discerning the terminal type of caller equipment, also can further realize detection, promptly judge in the call link and whether uniquely to have adopted the PSTN channel, or having comprised VoIP handle or the PLMN channel transmission channel kinds.
System of the present invention can initiate to detect in call establishment, also can implement to detect after call setup is finished, thereby application of the present invention is more flexible.
Accordingly, the present invention also provides a kind of calling-control method, and this method can be implemented the detection to terminal type or call link channel type, and this method also has accuracy in detection and the high advantage of reliability.
Description of drawings
Fig. 1 is a call control system structural representation of the present invention;
Fig. 2 is the structural representation of real-time detecting unit;
System configuration logic diagram of the present invention under Fig. 3 serial connection mode;
Fig. 4 is the flow chart that continues of normal call in the signaling feature detection;
Fig. 5 is an abnormal call process chart in the signaling feature detection;
Fig. 6 is signaling feature detection and phonic signal character testing process figure;
Fig. 7 is that signaling feature detection, phonic signal character detect and based on speech content testing process figure.
Embodiment
The invention provides a kind of call control system, its objective is that quick identification is found the caller device type in a large amount of occurent callings, and can call identifying link channel type.Its core is, comprising: the signaling detecting unit, the signaling-information of the signaling link of connecting system is detected, and the strategy according to presetting triggers real-time detecting unit the calling with definite call features is detected; Real-time detecting unit detects the echo signal feature of call link, and the testing result of feature coincidence detection strategy is sent to the speech detecting unit; The speech detecting unit calls sonagram pattern matching function and carries out speech content and detect determine calling out, and the testing result of coincidence detection strategy is sent to the call control strategy processing unit; The call control strategy processing unit obtains the testing result of real-time detecting unit and speech detecting unit, finishes according to the strategy that presets and calls out control.
The invention provides an arbitrage uses the voice real-time processing technique to caller device type real-time analysis flow.The present invention is the main line that each module of system forms interlock, will finish three grades on stream and detect and virtually work such as reply, and is described in detail below.
Fig. 1 is a call control system structural representation of the present invention.As shown in the figure, this system has specifically comprised signaling detecting unit 11, real-time detecting unit 12, speech detecting unit 13, call control strategy processing unit 14, monitoring means 15 and detection signal generation unit 16.The detection subsystem that described signaling detecting unit 11, real-time detecting unit 12 and speech detecting unit 13 constitute in the call control system of the present invention.
Wherein, signaling detecting unit 11 is according to the detection and the filtering policy that preset, the signaling message of the signaling link of connecting system carried out analyzing and testing, and control the processing of real-time detecting unit 12 according to testing result; Concrete, the signaling detecting unit can be according to the information that comprises in the call signaling, as source/destination address etc. signaling information is detected, meet the calling of presetting policy condition if detect, then triggering the Channel Detection unit detects the calling with special characteristic, for example the control channel detecting unit detects from the calling of determining source address, otherwise, change the normal call processing controls over to;
The function of signaling detecting unit can select different means to be realized according to the real needs of business, it is not to be the requisite functional unit of native system, when comprising the signaling detecting unit in the system of the present invention, can distribute in conjunction with detection and detect the think it unnecessary calling that will detect in real time of strategy, thereby the signaling detecting unit helps to reduce the processing load of real-time detecting unit 12 signaling information.
Detecting unit 12 adopts the DSP technology to realize that terminal type detects in real time, and the echo signal characteristic in the call link is analyzed, and the analysis result of coincidence detection strategy is sent to speech detecting unit 13, otherwise, change normal call over to.The testing result of described coincidence detection strategy comprises: judge that the dut terminal type is non-PSTN terminal.
And detecting unit 12 also can judge that whether comprising VoIP in the call link handles or the PLMN channel by to the echo signal signature analysis in real time, judges promptly whether echo signal has echo and suppress processing back characteristic; The analysis result of coincidence detection strategy is sent to the call control strategy processing unit.The testing result of described coincidence detection strategy comprises: judge in the call link to have comprised voip technology or PLMN channel.On this basis, analysis in conjunction with 11 pairs of signaling information features of signaling detecting unit, can identify whether comprised the PLMN channel in the call link by features such as source/destination addresses, then also realize whether comprising the identification of voip technology in the call link accordingly.
Fig. 2 is the structural representation of real-time detecting unit.As shown in the figure, comprise in the described Channel Detection unit: signal data collection unit 21, signal analysis detecting unit 22 and detect policy unit 23.Wherein, signal data collection unit 21 is attempted by on the in-trunk road, gathers the speech channel of calling relaying in real time when the detection signal of receiving signal generation unit 16 sends report, and gives signal analysis detecting unit 22 with the data that collect and handle.Described signal analysis detecting unit 22 detects to the received signal, analyzes this signal time domain or/and frequency domain character, and according to this feature, measured signal and detection signal is mated; And generation examining report.DSP detects policy unit 23, provides to detect the policy configurations function, all kinds of judgement thresholdings is provided and provides all kinds of judgement thresholdings etc. for the result exports for signal analysis detects.
What in real time detecting unit was implemented according to the voice signal characteristic can be 200510132038.5 with reference to application number to the detection of terminal type and the detection method of call link channel, denomination of invention is: a kind of transmission channel detecting method and call control system, and application number is that 200510132041.7 denominations of invention are: a kind of detection method of side terminal apparatus style and call control system, and application number is 200510134664.8, and denomination of invention is: disclosed technical scheme in the application documents of a kind of signal transmission channel detection method and call control system.Yet core of the present invention is described three grades of detection architecture, thereby the present invention does not limit the real-time detecting unit enforcement concrete means that speech detection adopted.
Call control strategy processing unit 14, testing result according to described detection subsystem, according to the call control strategy that presets control is finished in calling, comprise: should call out access of virtual and reply terminal or inform that by the network control interface opposite end switching equipment handles accordingly, the described virtual terminal of replying is used for virtual replying carried out in the calling that system inserts, handle further to carry out voice data, described network control interface is finished with the call information of opposite end switching equipment mutual; Further the call control strategy processing unit also reports monitoring center with relevant information.
Monitoring means 15, the situation that system is detected gathers, and the result is managed.
Detection signal generation unit 16 is used for generation and is suitable for carrying out the particular detection voice signal, and sends on the trunk.
More than be system configuration core of the present invention, this system can be linked into controlled exchange end office (EO) so that the relevant detection function to be provided by dual mode: by cross-over connection exchange transmission line; Perhaps, by being serially connected in the place ahead of exchange.
Figure 3 shows that according to the system core of the present invention this system configuration logic diagram under the serial connection mode.The serial connection mode is meant that system equipment of the present invention is serially connected on the calling transmission line of supervised exchange switch, simulating the supervised exchange switch provides complete tandem exchange function on the one hand, gather signaling information on the other hand and speech channel information detects, and then calling is controlled according to testing result.
As shown in the figure, this system comprises digital relay interface 31; Speech channel collecting unit 32 is used to obtain the voice signal on the calling circuit; Speech channel speech analysis unit 310 obtains the detection of the voice signal enforcement of speech channel collecting unit based on the speech channel content; Signaling System Number 7 processing unit 33 is implemented the real-time detection of signaling-information, and the Signaling System Number 7 handling process is provided, and comprises required data configuration and oam function; Rm-cell 34 provides speech channel acquisition channel, speech recognition register(system), virtual resource management function of replying terminal, comprises resource allocation, release, condition managing etc.; Call control strategy administrative unit 35 is used to develop and manage call control strategy; Signal collecting interface 36 provides the transmitting function of signaling message, and further signaling message is sent to the signalling analysis server, and described signalling analysis server can be realized the statistical analysis to the signaling testing result; Call processing unit 37, its function comprises: the special calling control flow is provided, according to call control strategy control detection process, the management of blacklist or white list is provided and analyzes locating function, special Signaling System Number 7 speech channel management function is provided, start the virtual initiation active detecting of replying according to demand, and carry out information interaction with Surveillance center; The virtual terminal 38 of replying is used for virtual replying carried out in the calling that system inserts, and the voice signal after further call setup being finished sends to the recording terminal and carries out record; Detecting unit 39, the situation that system is detected gathers, and the result is managed.
Based on the system shown in Figure 3 structure, below specify the call control procedure of this system.
1) call control system of the present invention receives the associated call of incoming call to the supervised exchange switch.
2) the Signaling System Number 7 processing unit is monitored the all-calls signaling information, based on the signaling feature calling is divided, below serve as according to giving an example with the calling and called address in the signaling-information:
Call out if find called white list, then stop testing process, continue calling procedure by normal relaying tandem function, its process as shown in Figure 4; The address that is preset in the white list is considered to secure address, when call address is address in the white list, can directly carries out normal call proceeding and handle, and makes and needn't carry out the subsequent detection process, reduces the load of system.
Call out if find the caller blacklist of determining, then determine immediately to detect successfully, simultaneously record is carried out in calling, trigger abnormal call and handle, its process is referring to Fig. 5; Be preset at address in the blacklist for being defined as unsafe calling terminal address, when calling originates from this address, think that this calling is controlled or unsafe, and then the abnormal call that sets out is handled.Described hundred lists and blacklist can be set up according to existing means, for example according to user's complaint or empirical value etc.
If the signaling address does not belong to described white list or blacklist, if promptly find the doubtful calling of other signaling or find doubtful calling by traffic measurement, then at first transmit this and call out target office exchange, promptly call informations such as numbers of calling and called parties are not made any change by normal tandem mode; And then, if native system is received the idle signal of back to the terminal called of loopback, then tackle its ring-back tone (or CRBT sound) and enabling signal feature detection function, adopt the gimmick of active probe, realize calling party's information source and channel characteristics are detected by the detection to voice signal echo signal feature, testing result comprises:
21) the information source feature does not meet automatic sound pick-up outfit feature, and channel characteristics do not meet the voip phone feature, then stops to detect, and finishes calling procedure by normal tandem flow process, not influence the normal telecommunication service of user; Handling process as shown in Figure 6;
22) the echo signal feature meets automatic sound pick-up outfit and voip phone two big features, then starts the special calling control flow immediately, and its speech channel information is implemented speech detection, and concrete grammar is as 3) in explanation;
23) various types of calls failure signals such as terminal called is busy are received by system, and then start detection function not continues calling procedure by normal tandem flow process.
3) when the echo signal feature meets automatic sound pick-up outfit and voip phone two features, trigger calling control flow;
With reference to Fig. 7, send answer signal to the calling party in advance by system of the present invention, owing to judge that the calling party is automatic sound pick-up outfit, therefore the calling party after receiving answer signal with the playback phone, can adopt the DSP technology according to the call voice sample that presets this moment by call processing unit, calls sonagram pattern matching function and carry out the speech channel detection:
If detect successfully, tested calling meets the feature (for example sound pick-up outfit is play advertisement automatically) that presets strategy, then carries out abnormal call and handles;
If detect failure, tested calling meets the feature that does not preset strategy, then stops to detect, and continues the subsequent voice calls process, and after receiving answer signal two-way connection calling and called both sides;
To the doubtful calling of sonagram pattern matching detection failure, require its speech channel information is gathered, and deliver the backstage monitoring means and carry out speaker characteristic identification and keyword identification processing, so that in time find new illegal advertisement telephone speech samples; Monitoring means is analyzed the voice content of doubtful calling by modes such as speaker characteristic identification, keyword identification and manual interventions, and the sample that will meet feature is delivered the sample analysis center and is carried out feature and generate, and the new feature that generates is loaded among the DSP, improve the phonic signal character storehouse of DSP.
Below understand the implementation of system of the present invention specifically, and specifically introduced system's implementation and calling control flow when system is serially connected with exchange; System configuration under the cross-over connection mode of the present invention is with the structure difference that is connected in series under the mode mentioned above: under the cross-over connection mode, the present invention will tackle existing voice signal on the trunk, and because connected mode is and the exchange cross-over connection, thereby can't send the active probe signal, and then make do not possess the detection signal generation unit in this system, other unit control energy and annexation are followed system configuration core mentioned above, repeat no more herein.Yet on detection means, native system can be realized active probe by initiatively sending detection signal, also can utilize the signal resource in the existing transmission channel to initiate to detect.
On detection opportunity, above embodiment provides a kind of realization flow of initiating detection in call establishment, among this embodiment, call control system makes a call to set up when asking at caller equipment and begins to detect, and before finishing, implemented call setup described three grades of detections, the advantage of this method is for controlled dangerous calling, and this system can set up processing such as carrying out the evidence collection in the process and this time of control interruption call establishment in call link.Yet after finishing the signaling detection, the present invention also can initiate the detection based on phonic signal character and speech channel content after call setup is finished.
Detection subsystem in the call control system mentioned above is three grades of detection architecture, yet behind arbitrary detecting unit in this detection subsystem of omission, still can realize measuring ability of the present invention, though its detection effect will have reduction in various degree, the present invention is also got rid of the implementation of these systems unintentionally.
Accordingly, the present invention also provides a kind of calling-control method.This method has adopted three grades of testing mechanisms, according to the signaling-information feature in the call link, phonic signal character and speech channel content characteristic calling is detected, can discern the channel type in caller device type and the call link, thereby provide data to assist telecommunication network management from many aspects.
Preferable implementation method of the present invention is: obtain the signaling-information of call link, according to the strategy that presets, for the calling with second signaling feature, trigger abnormal call and handle; For calling, detect the echoing characteristic of voice signal, if having the echo signal that meets the PSTN channel characteristics in this call link, then to the described calling processing that continues with first signaling feature; If there is not the calling of echo signal in the call link, then further, voice signal and the speech samples that presets are compared, call sonagram pattern matching merit and carry out the voice content detection, if the match is successful, then trigger the abnormal call processing is carried out in this calling; Perhaps,, the echo signal of described call link handles the back signal characteristic if having the echo inhibition, and then further, voice signal and the speech samples that presets are compared, call sonagram pattern matching merit and carry out the voice content detection,, then trigger the abnormal call processing is carried out in this calling if the match is successful.The specific implementation of each step of the method for the invention can be referring to the elaboration of each functional unit in the system mentioned above and above to the explanation of system's testing process.
In the said method, described abnormal call is handled and is comprised determining that the voice signal of calling out gathers, and promptly by sound pick-up outfit the speech of call link is carried out record.Can send the active probe signal among the present invention and carry out active detecting, can utilize also that existing signal resource carries out calling detection in the transmission line.On detection opportunity, the present invention can be in call establishment or call setup carry out detection after finishing based on the voice signal echoing characteristic.
More than a kind of call control system provided by the present invention and calling-control method are described in detail, used specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (9)
1, a kind of call control system is characterized in that, comprising:
Detection subsystem, described detection subsystem comprise signaling detecting unit and real-time detecting unit; Wherein,
The signaling detecting unit detects the signaling-information of the signaling link of connecting system, and the strategy according to presetting triggers real-time detecting unit the calling with definite call features is detected;
Real-time detecting unit detects the echo signal feature of call link, obtains the testing result of feature coincidence detection strategy;
The call control strategy processing unit obtains the result of the detection of detection subsystem, finishes according to the strategy that presets and calls out control.
2, call control system as claimed in claim 1 is characterized in that:
Described detection subsystem also comprises the speech detecting unit;
Described real-time detecting unit further sends to described speech detecting unit with the testing result of feature coincidence detection strategy, the speech detecting unit calls sonagram pattern matching function and carries out the speech content detection to determining to call out, and obtains the testing result of coincidence detection strategy.
3, call control system as claimed in claim 1 is characterized in that:
Described system also comprises the speech collecting unit,
Described call control strategy processing unit triggers the speech collecting unit according to the strategy that presets the speech of determining call link is gathered.
4, a kind of calling-control method is characterized in that:
Signaling-information to the signaling link that gets access to detects, according to the strategy that presets,, the echo signal characteristic of call link is detected for calling with first signaling feature, obtain the testing result of feature coincidence detection strategy, and finish calling control according to the strategy that presets.
5, calling-control method as claimed in claim 4 is characterized in that:
For the calling that does not have echo signal in the call link, then further, voice signal and the speech samples that presets are compared, call sonagram pattern matching function and carry out the voice content detection, if the match is successful, then trigger the abnormal call processing is carried out in this calling.
6, calling-control method as claimed in claim 4 is characterized in that:
If having the echo inhibition, the echo signal of described call link handles the back signal characteristic, then further, voice signal and the speech samples that presets are compared, call sonagram pattern matching function and carry out the voice content detection, if the match is successful, then trigger the abnormal call processing is carried out in this calling.
7, calling-control method as claimed in claim 4 is characterized in that:
Further, for calling, trigger abnormal call and handle with second signaling feature.
8, as one of them described calling-control method of claim 5 to 7, it is characterized in that:
Described abnormal call is handled and is comprised: gather determining the voice signal of calling out.
9, as one of them described calling-control method of claim 4 to 7, it is characterized in that:
In call establishment or call setup carry out detection after finishing based on the voice signal echoing characteristic.
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| CNB2006100019785A CN100474872C (en) | 2006-01-23 | 2006-01-23 | Call controlling system and call controlling method |
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| CN110572248B (en) * | 2019-09-20 | 2022-05-17 | 海能达通信股份有限公司 | Voice call processing method, communication device, and storage medium |
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