CN104580068A - Voice media stream detection and control method and system - Google Patents
Voice media stream detection and control method and system Download PDFInfo
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- CN104580068A CN104580068A CN201310473557.2A CN201310473557A CN104580068A CN 104580068 A CN104580068 A CN 104580068A CN 201310473557 A CN201310473557 A CN 201310473557A CN 104580068 A CN104580068 A CN 104580068A
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- media stream
- stream
- voice media
- call voice
- signaling flow
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/22—Arrangements for supervision, monitoring or testing
- H04M3/2281—Call monitoring, e.g. for law enforcement purposes; Call tracing; Detection or prevention of malicious calls
Abstract
The present invention provides a voice media stream detection and control method and system. The method includes: after receiving a signaling stream, obtaining a capability parameter of a calling voice media stream from the signaling stream; after receiving the calling voice media stream, extracting the capability parameter thereof from the calling voice media stream, and comparing whether the capability parameter extracted from the calling voice media stream is consistent with the capability parameter of the calling voice media stream obtained from the signaling stream; if so, performing real-time detection on whether the calling voice media stream comprises a preset feature voice signal; if so, truncating the calling voice media stream, and if not, directly performing unvarnished transmission on the calling voice media stream; and if not consistent, then ending. The method and system of the present invention can detect and control various illegal calls such as defrauding calls in a telecommunication network without remoulding the current signaling stream and network apparatus, which effectively prevents the various illegal calls such as defrauding calls, and practically protects the benefits of the user and the network provider.
Description
Technical field
The present invention relates to Control on Communication field, particularly a kind of audio medium stream Detection & Controling method and system.
Background technology
Along with deepening continuously of communication network IPization, create the various fraudulent calls of IP based network, the fraudulent call such as " the remittance reimbursement ", " bankcard consumption " that such as repeatedly occurred, " false prize-winning " " first aid of remittance money ", " luring remittance ", " lottery ", " Guessing Who I Am ", " court simmons ", these phones create inconvenience to user and even cause heavy losses, increase the weight of the load of network simultaneously, occupy its bandwidth.In addition, highly developed due to the Internet, identifies whether as fraudulent call is nowhere near only by the telephone number in communication signaling stream, because lawless person can arbitrarily make up false telephone number by software.
Therefore the Detection & Controling method and system of the various illegal phones such as a kind of effectively preventing fraudulent call are needed at present badly, but, because current telecommunications network is quite huge and perfect, on the net device category various, the introducing of new business, generally all need the support of signaling flow and the process of signaling flow message, change or the restructuring of signaling drift net, communication controller node and service node can be caused, particularly relate to transformation and the upgrading of service application aspect.To online scrap build not only cost is high, and performance difficulty, and add the unsafe factor of network, makes the new business of income and competitiveness to be brought to implement to operator slow.
Summary of the invention
The object of the present invention is to provide a kind of audio medium stream Detection & Controling method and system, effectively can prevent and treat the various illegal phones such as fraudulent call.
For solving the problem, the invention provides a kind of audio medium stream Detection & Controling method, comprising:
After receiving signaling flow, from described signaling flow, obtain the ability parameter of call voice Media Stream;
After receiving call voice Media Stream, its ability parameter is extracted from described call voice Media Stream, and whether whether compare the ability parameter extracted from described call voice Media Stream consistent with the ability parameter of the call voice Media Stream obtained from described signaling flow
If consistent, then detect in call voice Media Stream whether comprise default characteristic voice signal in real time, if comprise, then block described call voice Media Stream, if do not comprise, then call voice Media Stream described in direct transparent transmission;
If inconsistent, then terminate.
Further, in the above-mentioned methods, described ability parameter comprises type of coding and the sampling rate of call voice Media Stream.
Further, in the above-mentioned methods, block in the step of described call voice Media Stream, after using quiet stream to replace described call voice Media Stream, transmit described quiet stream.
Further, in the above-mentioned methods, block in the step of described call voice Media Stream, after using the swindle alarm prompt sound stream prerecorded to replace described call voice Media Stream, transmit described swindle alarm prompt sound stream.
Further, in the above-mentioned methods, after blocking the step of described call voice Media Stream, also comprise and send alarm to a network management center.
Further, in the above-mentioned methods, after blocking the step of described call voice Media Stream, also comprise to operator's supervising the network report calling number and called number.
Further, in the above-mentioned methods, described signaling flow comprises SIP signaling flow or H.248 protocol signaling stream.
According to another side of the present invention, a kind of audio medium stream measurement and control system is provided, comprises:
Signaling flow processing module, for after receiving signaling flow, obtains the ability parameter of call voice Media Stream from described signaling flow;
Media Stream processing module, for after receiving call voice Media Stream, its ability parameter is extracted from described call voice Media Stream, and whether whether compare the ability parameter extracted from described call voice Media Stream consistent with the ability parameter of the call voice Media Stream obtained from described signaling flow, if consistent, then detect in call voice Media Stream whether comprise default characteristic voice signal in real time, if comprise, then block described call voice Media Stream, if do not comprise, then call voice Media Stream described in direct transparent transmission; If inconsistent, then terminate.
Further, in said system, described Media Stream processing module, after replacing described call voice Media Stream, transmits described quiet stream for using quiet stream.
Further, in said system, described Media Stream processing module, after replacing described call voice Media Stream, transmits described swindle alarm prompt sound stream for using the swindle alarm prompt sound stream prerecorded.
Compared with prior art, the present invention, by after receiving signaling flow, obtains the ability parameter of call voice Media Stream from described signaling flow; After receiving call voice Media Stream, its ability parameter is extracted from described call voice Media Stream, and whether whether compare the ability parameter extracted from described call voice Media Stream consistent with the ability parameter of the call voice Media Stream obtained from described signaling flow, if consistent, then detect in call voice Media Stream whether comprise default characteristic voice signal in real time, if comprise, then block described call voice Media Stream, if do not comprise, then call voice Media Stream described in direct transparent transmission; If inconsistent, then terminate.Under the prerequisite not transforming existing signaling flow and the network equipment, detection and control can be carried out to various illegal phones such as fraudulent calls in telecommunications network, effectively prevent and treat the various illegal phones such as fraudulent call, conscientiously the interests of protection user and network provider.
Accompanying drawing explanation
Fig. 1 is the flow chart of the audio medium stream Detection & Controling method of one embodiment of the invention;
Fig. 2 is the flow chart of the quiet stream replacement call voice Media Stream of one embodiment of the invention;
Fig. 3 is the flow chart of the swindle alarm prompt sound stream replacement call voice Media Stream of one embodiment of the invention;
Fig. 4 is the audio medium stream measurement and control system high-level schematic functional block diagram of one embodiment of the invention.
Embodiment
For enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, and below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Embodiment one
As shown in Figure 1, the invention provides a kind of audio medium stream Detection & Controling method, comprise step S1 ~ step S6.
Step S1, after receiving signaling flow, obtains the ability parameter of call voice Media Stream from described signaling flow; Concrete, by the ability parameter related media stream of call voice Media Stream carried in signaling flow;
Preferably, described ability parameter comprises type of coding and the sampling rate of call voice Media Stream.
Preferably, described signaling flow comprises SIP signaling flow or H.248 protocol signaling stream.
Step S2, after receiving call voice Media Stream, its ability parameter is extracted from described call voice Media Stream, and whether whether compare the ability parameter extracted from described call voice Media Stream consistent with the ability parameter of the call voice Media Stream obtained from described signaling flow, if consistent, then forward step S3 to, if inconsistent, then forward step S6 to, concrete, the present embodiment first according to Signaling-detection to call voice Media Stream, then each call voice Media Stream bag received is mated with characteristic voice signal, if coupling, from the alarm prompt sound storehouse of prerecording, then extract a kind of swindle alarm prompt sound stream, follow-up transmission swindle alarm prompt sound stream, or change call voice Media Stream into quiet flow forwarding.
Step S3, default characteristic voice signal whether is comprised in real-time detection call voice Media Stream, if comprise, then forward step S4 to, if do not comprise, then forward step S5 to, concrete, here according to the feature of call voice Media Stream, feature identification is carried out to call voice Media Stream, the call voice Media Stream meeting feature is controlled.
Step S4, blocks described call voice Media Stream;
Optionally, in step S4, after using quiet stream to replace described call voice Media Stream, transmit described quiet stream.
Optionally, in step S4, after using the swindle alarm prompt sound stream prerecorded to replace described call voice Media Stream, transmit described swindle alarm prompt sound stream.
Preferably, also can comprise after step S4 and send alarm to a network management center, so that network management center takes the decision-makings such as control measure.
Preferably, also can comprise after step S4 to operator's supervising the network report calling number and called number.Can also comprise in addition and preserve relevant signaling flow and call voice Media Stream, and calling number or called number are added blacklist.
Step S5, call voice Media Stream described in direct transparent transmission;
Step S6, terminates.
Detailed, use quiet stream to replace the flow chart of described call voice Media Stream as shown in Figure 2, getting described characteristic voice signal is dtmf tone (dual-tone multifrequency).First, receive a Media Stream bag (step S21), this Media Stream bag and dtmf tone are compared (step S22), judge whether to mate (step S23), if do not mated, then forward this Media Stream bag (step S24); If coupling, then forward this bag, then more next Media Stream bag and dtmf tone (step S25), if arrive dtmf tone tail of sequence, and all mate, then change follow-up each Media Stream bag into quiet data content (step S26), then forward, thus reach the effect suppressing swindle sound.If Media Stream bag and dtmf tone do not mate always, then dtmf tone is all carried out to the Media Stream bag received at every turn and compare, until this end of conversation.
The swindle alarm prompt sound stream prerecorded is used to replace the flow chart of described call voice Media Stream as shown in Figure 3.First, receive a Media Stream bag (step S31), this Media Stream bag and dtmf tone are compared (step S32), judge whether to mate (step S33), if do not mated, then forward this Media Stream bag (step S34), if coupling, then forward this bag, then more next Media Stream bag and dtmf tone (step S335), if arrive dtmf tone tail of sequence, and all mate, then follow-up each Media Stream bag is abandoned (step S36), then the timer (step S37) of a 20ms is started, a kind of alarm prompt sound sequence (step S38) is extracted from the fraudulent call alarm prompt sound storehouse of prerecording, every 20ms sends a prompt tone bag, until all bags of this prompt tone all distribute (step S39), after alarm prompt sound is all sent, stop the timer (step S30) of 20ms, terminate this call (step S41).Thus reach the effect suppressing swindle sound and prompting user.If Media Stream bag and dtmf tone do not mate always, then dtmf tone is all carried out to the Media Stream bag received at every turn and compare, until this end of conversation.
The present embodiment is without the need to transforming existing network; easy to implement; detection and control can be carried out to various illegal phones such as fraudulent calls in telecommunications network; the various illegal phones such as effective control fraudulent call, the interests of protection user and network provider can be applicable to the fields such as traffic control, signaling flow fire compartment wall, signaling flow security gateway conscientiously.
Embodiment two
As shown in Figure 4, the present invention also provides another kind of audio medium stream measurement and control system 1, comprises signaling flow processing module 11 and Media Stream processing module 12.
Signaling flow processing module 11, for after receiving signaling flow, obtains the ability parameter of call voice Media Stream from described signaling flow;
Media Stream processing module 12, for after receiving call voice Media Stream, its ability parameter is extracted from described call voice Media Stream, and whether whether compare the ability parameter extracted from described call voice Media Stream consistent with the ability parameter of the call voice Media Stream obtained from described signaling flow, if consistent, then detect in call voice Media Stream whether comprise default characteristic voice signal in real time, if comprise, then block described call voice Media Stream, if do not comprise, then call voice Media Stream described in direct transparent transmission; If inconsistent, then terminate.
Optionally, described Media Stream processing module 12, after replacing described call voice Media Stream, transmits described quiet stream for using quiet stream.
Optionally, described Media Stream processing module 12, after replacing described call voice Media Stream, transmits described swindle alarm prompt sound stream for using the swindle alarm prompt sound stream prerecorded.
As shown in Figure 4, the audio medium stream measurement and control system 1 of the present embodiment can be serially connected with between two networks or be between two different network elements of same network, audio medium stream measurement and control system 1 comprises signaling flow processing module 11 and Media Stream processing module 12, signaling flow processing module 11 is connected between SoftSwitch, Media Stream processing module 12 is connected between media relays gateway, for recognition feature voice in Media Stream.
Other detailed content of embodiment two specifically see embodiment one, can not repeat them here.
With need the signaling drift net that changes or recombinate when introducing new business at present, communication controller node is compared with service node, unaware existing network can be accessed based on native system, without the need to transforming existing network equipment, be easy to Rapid Implementation, can control and transmitting signaling stream and Media Stream simultaneously, depth detection is carried out to media stream content, realize controlling various illegal phones such as fraudulent calls in telecommunications network, the various illegal phones such as effective control fraudulent call, the interests of practical protection user and network provider can be applicable to traffic control, signaling flow fire compartment wall, the fields such as signaling flow security gateway.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.For system disclosed in embodiment, owing to corresponding to the method disclosed in Example, so description is fairly simple, relevant part illustrates see method part.
Professional can also recognize further, in conjunction with unit and the algorithm steps of each example of embodiment disclosed herein description, can realize with electronic hardware, computer software or the combination of the two, in order to the interchangeability of hardware and software is clearly described, generally describe composition and the step of each example in the above description according to function.These functions perform with hardware or software mode actually, depend on application-specific and the design constraint of technical scheme.Professional and technical personnel can use distinct methods to realize described function to each specifically should being used for, but this realization should not thought and exceeds scope of the present invention.
Obviously, those skilled in the art can carry out various change and modification to invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (10)
1. an audio medium stream Detection & Controling method, is characterized in that, comprising:
After receiving signaling flow, from described signaling flow, obtain the ability parameter of call voice Media Stream;
After receiving call voice Media Stream, its ability parameter is extracted from described call voice Media Stream, and whether whether compare the ability parameter extracted from described call voice Media Stream consistent with the ability parameter of the call voice Media Stream obtained from described signaling flow
If consistent, then detect in call voice Media Stream whether comprise default characteristic voice signal in real time, if comprise, then block described call voice Media Stream, if do not comprise, then call voice Media Stream described in direct transparent transmission;
If inconsistent, then terminate.
2. audio medium stream Detection & Controling method as claimed in claim 1, it is characterized in that, described ability parameter comprises type of coding and the sampling rate of call voice Media Stream.
3. audio medium stream Detection & Controling method as claimed in claim 1, is characterized in that, block in the step of described call voice Media Stream, after using quiet stream to replace described call voice Media Stream, transmits described quiet stream.
4. audio medium stream Detection & Controling method as claimed in claim 1, it is characterized in that, block in the step of described call voice Media Stream, after using the swindle alarm prompt sound stream prerecorded to replace described call voice Media Stream, transmit described swindle alarm prompt sound stream.
5. audio medium stream Detection & Controling method as claimed in claim 1, is characterized in that, after blocking the step of described call voice Media Stream, also comprise and send alarm to a network management center.
6. audio medium stream Detection & Controling method as claimed in claim 1, is characterized in that, after blocking the step of described call voice Media Stream, also comprises to operator's supervising the network report calling number and called number.
7. audio medium stream Detection & Controling method as claimed in claim 1, is characterized in that, described signaling flow comprises SIP signaling flow or H.248 protocol signaling stream.
8. an audio medium stream measurement and control system, is characterized in that, comprising:
Signaling flow processing module, for after receiving signaling flow, obtains the ability parameter of call voice Media Stream from described signaling flow;
Media Stream processing module, for after receiving call voice Media Stream, its ability parameter is extracted from described call voice Media Stream, and whether whether compare the ability parameter extracted from described call voice Media Stream consistent with the ability parameter of the call voice Media Stream obtained from described signaling flow, if consistent, then detect in call voice Media Stream whether comprise default characteristic voice signal in real time, if comprise, then block described call voice Media Stream, if do not comprise, then call voice Media Stream described in direct transparent transmission; If inconsistent, then terminate.
9. audio medium stream Detection & Controling method as claimed in claim 8, is characterized in that, described Media Stream processing module, after replacing described call voice Media Stream, transmits described quiet stream for using quiet stream.
10. audio medium stream Detection & Controling method as claimed in claim 8, it is characterized in that, described Media Stream processing module, after replacing described call voice Media Stream, transmits described swindle alarm prompt sound stream for using the swindle alarm prompt sound stream prerecorded.
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| CN201310473557.2A CN104580068A (en) | 2013-10-11 | 2013-10-11 | Voice media stream detection and control method and system |
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| CN201310473557.2A CN104580068A (en) | 2013-10-11 | 2013-10-11 | Voice media stream detection and control method and system |
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| WO2006085565A1 (en) * | 2005-02-08 | 2006-08-17 | Nippon Telegraph And Telephone Corporation | Information communication terminal, information communication system, information communication method, information communication program, and recording medium on which program is recorded |
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Application publication date: 20150429 |