CN106534597A

CN106534597A - Communication control system

Info

Publication number: CN106534597A
Application number: CN201610967693.0A
Authority: CN
Inventors: 王华勤
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-11-01
Filing date: 2016-11-01
Publication date: 2017-03-22

Abstract

The invention provides a communication control system. The communication control system comprises a signaling extractor configured to be used for extracting signaling messages between a first switch and a second switch; a signaling detector configured to be used for detecting specific messages sent by the first switch among the signaling messages; and a call controller configured to be used for determining whether specific parameters in the specific messages satisfy predetermined criteria, wherein when it is determined that the specific parameters satisfy the predetermined criteria, the call controller sends signaling messages used for releasing calls to at least one from the first switch and the second switch. According to the technology provided by the invention, malicious calls can be stopped without enormous or substantial network route change.

Description

A kind of communication control system

Technical field

The invention belongs to communication control system and communication control method field, more particularly to a kind of communication control system.

Background technology

In the mobile communication terminal with mobile phone or PHS (Personal Handphone System, personal handy phone system) etc. In the case of making a phone call to foreign countries, it is necessary to the concluding a contract between international common carrier in advance.That is, name oneself, The backward international common carrier that residence, communication address, method of payment etc. are inserted on the application form of regulation is filed an application.

There are some shortcomings in conventional art.First, audio call sender may have sent some with correct communication The audio call of interconnection agreement parameter, or have sent the calling of the type of call that recipient's network is not supported.This may cause Internet resources are wasted when the undesired call communication amount of some recipient's networks is processed.Secondly, using particularly IP speeches (VOIP) advantage of technology, some people may be easy to generate a large amount of uncalled audio calls for network.Recipient Virtual network operator may be thrown to their higher level transfer business (carrier, which is for example used for forwarding or exchanging traffic) Tell.And under many circumstances (such as under the IDD Wholesale network environment with anonymous characteristic), recipient's Virtual network operator cannot For true initiator takes any substantive action.

Although nowadays exchange of speech technology is based primarily upon Technologies of Digital Switch, do not processed in " storage forwarding " mode Audio call.Exchange of speech operator is difficult to effectively check and refuse those unwelcome callings.This is firstly because language Sound calling is to set up in real time, therefore the no matter powerful processing system using how, and the time for any checking routine is all Limited.Secondly, even if this check system, operator can be used also generally to need specially to route the call to this verification System verifies each calling so as to which.This causes common call routing network arrangement to become complicated, and consumes double language The call handling capacity of sound switch.

Chinese patent application discloses CN1265810A and proposes a kind of incoming call for mobile phone and carries out the side of incoming call screening Method.In the method, in the mobile telephone network environment of GSM standards, the mobile subscriber for receiving incoming call is needed all incoming calls Unconditionally be transferred in telephone network destined node, and at the node by with regard to the information that calls with it is predetermined Filter criteria be compared, only when calling meets filter criteria will calling be transferred back to mobile phone again.

The content of the invention

For solving the above problems, the present invention provides a kind of communication control system, including：Signaling extractor, is configured to use Signaling message between the first switch of extraction and second switch；Signaling detector, is configurable for detecting the letter Make the particular message sent by first switch in message；And call controller, it is configurable for judging described Whether the special parameter in particular message meets predetermined criterion；Wherein, described pre- fix is met being judged as the special parameter In the case of then, the call controller is sent at least one of first switch and the second switch to be used for The signaling message of call release.

Specifically, the present invention provides a kind of communication control method, including：Signaling extraction step, extract the first switch with Signaling message between second switch；Signaling detection steps, detect being sent out by first switch in the signaling message The particular message sent；Judge step, judge whether the special parameter in the particular message meets predetermined criterion；And calling is released Stride rapid, in the case where the special parameter meets the predetermined criterion, exchange to first switch and described second At least one of machine sends the signaling message for call release.

System and a method according to the invention, due to communication node (switch, mobile telephone terminal etc.) not on one's own initiative Participate in whole process, therefore will not be that the standard operation of communication node and function bring any upset.

Further, as system and a method according to the invention varies without the internal structure and function of switch, because This present invention will not upset the system route arrangement of existing or standard.

Further, as the system and method for the present invention can be applicable to the exchange that common signal channel signalling system No.7 (C7) is interconnected Machine, therefore present invention can be suitably applied in different Virtual network operators or even exhaled between mobile phone and fixed line network Cry screening.

Description of the drawings

Schematic deployment diagrams of the Fig. 1 for the example communication control system of one embodiment of the present of invention；

Indicative flowcharts of the Fig. 2 for the example communication control method of one embodiment of the present of invention.

Specific embodiment

In order that technical problem solved by the invention, technical scheme and beneficial effect become more apparent, below in conjunction with Drawings and Examples, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein only to The present invention is explained, is not intended to limit the present invention.

Fig. 1 is the schematic deployment diagram of the example communication control system according to one embodiment of the present of invention.Such as Fig. 2 institutes Show, example communication control system 1000 according to embodiments of the present invention includes：Signaling extractor (tap) 1100, is configured to For extracting the signaling message between the first switch 500 and second switch 600；Signaling detector (probe) 1200, is matched somebody with somebody It is set to for detecting the particular message sent by first switch 500 in the signaling message；And call controller 1300, it is configurable for judging whether the special parameter in the particular message meets predetermined criterion.It is being judged as the spy Determine in the case that parameter meets the predetermined criterion, the call controller 1300 is to first switch 500 and described At least one of two switches 600 send the signaling message for call release.

According to a kind of embodiment, above-mentioned signaling can be realized by signal extracting device (tappingdevice) and be carried Take device 1100.This signal extracting device can be obtained in the current marketplace.The signal extracting device generally uses high resistant Anti- element and circuit is connected with detection equipment.Due to high-impedance component so that detection equipment is not interfered with or disturbing line signal Transmission on the signalling link, therefore this signal extracting device is also referred to as " passive type " signal extracting device.For example, can be with Using the dector for copper cable disclosed in United States Patent (USP) 5,457,729 as the dector in the present invention 1100.Additionally, the environment in optical cable connection can also use United States Patent (USP) 5, the optical signalling extraction element disclosed in 410,628 As the dector 1100 in the present invention.Signaling extractor 1100 can be used to extract signaling message (example on the signalling link Such as isup message) and the signaling message is delivered to into signaling detector 1200.Signaling detector 1200 can be detected by signaling Particular message in the signaling message that extractor 1100 is extracted, and the specific ginseng in the particular message is obtained by analysis Number.Signaling detector 1200 can send data so as to carry out data cube computation to call controller 1300.Signaling detector 1200 And can obtain in the current marketplace, and be also the passive device for not disturbing signaling link.It is, for example possible to use the U.S. is special The detector used in the system for gathering and storing teledata disclosed in profit 7,496,185 is used as in the present invention Signaling detector 1200.Call controller 1300 can be by application server realizing, and which can be using the signaling link of identical type And it is connected to the STP shown in figure.However, according to preference or the concrete application environment of operator, call controller 1300 also may be used STP is not passed through to be directly connected to the switch 500 and/or 600 of operator.Can include for sentencing in call controller 1300 Whether the special parameter in disconnected particular message meets the inspection logic of predetermined criterion.

Above-mentioned communication control system 1000 is can be located at outside first switch 500, and is handed over positioned at described second Change planes outside 600.Therefore, the internal structure and function of switch is varied without, so as to the system that will not upset existing or standard Route arrangement.

Additionally, when signaling extractor 1100 and signaling detector 1200 perform operation, the first switch 500 and second is handed over The call establishment changed planes between 600 is normally carried out independently of the operation, is not interfered.Therefore, the present invention can not Upset standard operation and the function of each existing communication node.

Fig. 2 is the indicative flowchart for illustrating example communication control method according to an embodiment of the invention.

In step sl, the signaling that signaling extractor 1100 is extracted between the first switch 500 and second switch 600 disappears Breath.In the meantime, the call establishment between two switches 500 and 600 proceeds and can be unaware of data and be carried Take.That is, for the two switches 500 and 600, signaling extractor 1100 can be " transparent ".According to one Illustrative embodiments are planted, signaling extractor 1100 can extract all of C7 message and the C7 message of extraction is sent to signaling Detector 1200.

In step s 2, signaling detector 1200 extract in the signaling message extracted by signaling extractor 1100 by first The particular message that switch (initiator's switch) 500 sends.This particular message can be the request of the first switch 500 and the Two switch 600 sets up the initial message of calling.According to a kind of illustrative embodiments, the particular message can be that ISUP disappears IAM message in breath (initial address message sets up first message of calling from initiator's switch), and by the IAM Message is sent to call controller 1300.

In step s3, whether the special parameter in particular message described in the inspection logical judgment of call controller 1300 is full Sufficient predetermined criterion.If it is determined that the special parameter meets the predetermined criterion, then process proceeds to step S4.

According to a kind of illustrative embodiments, in step s3, the inspection Logic application journey of the call controller 1300 Sequence can extract the content in IAM message, inspection such as OPC (initiating the switch C7 point codes of the switch of this message), DPC (receiving the C7 point codes of the switch of this message), calling number, called number, CIC (are identified for audio call The circuit identification code of channel) etc key parameter, and the applicable parameter of other required by Call- Control1, and verifying The such as parameter of type of call, caller and called number etc, is judged using the predetermined criterion.The predetermined criterion can It is whether the criterion of malicious call to be for judging to call.For example, the predetermined criterion can be that calling number meets necessarily Criterion (for example, matching with certain blacklist), or incoming call time meet certain criterion (for example, morning 1:00 to morning 6:00), or various conditions combination.The aforesaid inspection logic can be static block list, or from being used for Certain dynamic mode that the external system of detection malicious call is received.For example, the inspection logic can be according to collecting at any time Fresh information updating the predetermined criterion (for example, in blacklist add calling number, etc.) which is used for checking.

In step s 4, the call controller 1300 is in first switch 500 and the second switch 600 At least one send the signaling message for call release.

According to a kind of illustrative embodiments, call controller 1300 can be by pretending 600 (destination of second switch Switch) attempt call release and construct release message (for example, the REL message in ISDN User Part).In order to pretend the second exchange Machine 600, call controller 1300 can be using for example following key parameters：The switch of second switch (destination's switch) Point code (for example, in ISDN User Part, which is used as the OPC of REL message), the switch of the first switch (initiator's switch) Point code (for example, in ISDN User Part, which is used as the DPC of REL message) and from the circuit identification code of initial address message (for example, the CIC of the IAM message in ISDN User Part).The release message is issued from call controller 1300, is then sent To the first switch 500 as initiator.Application program in call controller 1300 can write event log for recording Or charge record, can be used to processing customer inquiries or with used in operator reconciliation process.

According to a kind of illustrative embodiments, if being judged as that above-mentioned predetermined criterion is mismatched in step s3, call Application program in controller 1300 does not perform any action, and is to revert to step S3, the next message for arriving of verification.

Afterwards, when the first switch 500 as initiator is received for call release from call controller 1300 During signaling message, will be considered that the signaling message for being used for call release is from second switch (destination's switch) 600 Message, then will terminate calling, and another signaling message for call release is sent to second switch 600 also.In It is that calling terminates.

Although note that described in detail above being sent to release message as the first of initiator in step s 4 is handed over Change planes 500, but this is only an exemplary example of the present invention.Release message can also be sent to as destination Second switch 600.More specifically, call controller 1300 can be by pretending the first switch 500 (initiator's switch) Attempt call release and construct release message (for example, the REL message in ISDN User Part).In order to pretend the first switch 500, exhale Make controller 1300 use for example following key parameter：The switch point code of the first switch (initiator's switch) (for example, in ISDN User Part, which is used as the OPC of REL message), the switch point code of second switch (destination's switch) (for example, in ISDN User Part, which is used as the DPC of REL message) and from initial address message circuit identification code (for example, The CIC of the IAM message in ISDN User Part).The release message is issued from call controller 1300, is then communicated to conduct The second switch 600 of destination.

It is that order is carried out that flow process in Fig. 2 illustrates S1, S2 and S3, but the flow chart is only symbolically illustrated for list The signal processing flow of individual signaling.In other words, for a signaling, the signaling first is extracted, secondly analyzed with extraction Particular message in the signaling, then the particular message is for being compared with predetermined criterion.However, in practical operation, letter Make extractor 1100, signaling detector 1200 and the call controller 1300 can be with the multiple signalings of parallel processing.More specifically, signaling Extractor 1100 can be configured to constantly extract signaling and the signaling of extraction is sent to signaling detector 1200, regardless of whether letter Make what kind of process detector 1200 and call controller 1300 are performing.Signaling detector 1200 can be configured to constantly reception And analyze from signaling extractor 1100 signaling, and by by analysis and extract particular message be sent to Call- Control1 Device 1300, regardless of whether what kind of process signaling extractor 1100 and call controller 1300 are performing.Similarly, call controller 1300 can be configured to constantly receive the customizing messages from signaling detector 1200, and for the customizing messages judges And be controlled, regardless of whether what kind of process signaling extractor 1100 and signaling detector 1200 are performing.For example, visit in signaling When survey 1200 pairs of signalings of device are analyzed, signaling extractor 1100 can perform the extraction of another signaling.In addition also there is this The probability of sample, i.e.,：When signaling extractor 1100 is extracted three signalings, signaling detector 1200 only divides for some reason One of signaling is analysed.That is, the operation of signaling extractor 1100, signaling detector 1200 and call controller 1300 Can not be synchronous.

The detecting system of the present invention is the detecting system of noninvasive.Technology according to the present invention can stop malicious call And it is not required for substantial amounts of or significant network route changing.As the present invention only operates in signaling message, therefore the present invention Design capacity planning be simple and with low cost.

The method of the present invention and equipment can be implemented in many ways.For example, can by software, hardware, firmware, Or its any combinations is implementing the method for the present invention and equipment.The order of above-mentioned method and step is merely illustrative, the present invention Method and step be not limited to order described in detail above, unless otherwise clearly stated.Additionally, in some embodiments In, the present invention can also be implemented as recording program in the recording medium, and which is included for realizing the method according to the invention Machine readable instructions.Thus, the present invention also covers storage for realizing the recording medium of the program of the method according to the invention.

Although illustrating some specific embodiments of the present invention by example in detail, those skilled in the art should Understand, above-mentioned example is intended merely to be illustrative and do not limit the scope of the invention.It should be appreciated by those skilled in the art that above-mentioned Embodiment can be by modification without deviating from the scope of the present invention and essence.The scope of the present invention is limited by appended claim Fixed.

In the description of the disclosure, embodiments of the invention are described as example with IDD switches.However, the present invention is not It is limited to IDD switches.All any switches are present invention can be suitably applied to, as long as including in the signaling protocol that the switch is used Initiator's switch sets up the message of calling and the message of call release.For example, the present invention may also apply to such as move The switch of call center (MSC) etc.

In addition, in the disclosure, retouched with the signaling message of switch and ISDN User Part using C7 agreements as an example State the present invention.However, the invention is not restricted to the signaling message of the switch and ISDN User Part of C7 agreements.The present invention can also be applied In other communication protocols, it is used for setting up the signaling of communication as long as being included in communication protocol on signaling link and transmitting calling switchboard Message and communication party are used for the signaling message of call release.

Presently preferred embodiments of the present invention is the foregoing is only, not to limit the present invention, all essences in the present invention Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.

Claims

1. a kind of communication control system, it is characterised in that：Including：Signaling extractor, is configurable for extracting the first switch Signaling message between second switch；

Signaling detector, is configurable for detecting specific the disappearing by first switch transmission in the signaling message Breath；

Call controller, is configurable for judging whether the special parameter in the particular message meets predetermined criterion；

Wherein, in the case where being judged as that the special parameter meets the predetermined criterion, the call controller is to described At least one of one switch and the second switch send the signaling message for call release, described for discharging In the case that the signaling message of calling is the signaling message sent to first switch, the signaling for call release At least one of message signaling parameter is the signaling parameter used by the second switch so that the call controller is pseudo- Dress up the second switch and the signaling message for call release can be identified as coming by first switch From the signaling message of the second switch, it is to send to the second switch in the signaling message for call release Signaling message in the case of, at least one of described signaling message for call release signaling parameter be it is described first hand over Change planes used signaling parameter so that the call controller disguises oneself as first switch and the second switch The signaling message for call release can be identified as the signaling message from first switch.

2. a kind of communication control system according to claim 1, it is characterised in that：The particular message is first friendship The initial message for calling is set up in request of changing planes with second switch, and the predetermined criterion is for judging whether calling is that malice is exhaled The criterion cried, the communication control system are located at outside first switch, and the communication control system is positioned at described Outside second switch, when the signaling extractor and the signaling detector perform operation, first switch and institute The call establishment stated between second switch is normally carried out independently of the operation.