CN1719788A - Method for call controlling and service monitoring of soft exchange monitoring - Google Patents
Method for call controlling and service monitoring of soft exchange monitoring Download PDFInfo
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- CN1719788A CN1719788A CN 200410062713 CN200410062713A CN1719788A CN 1719788 A CN1719788 A CN 1719788A CN 200410062713 CN200410062713 CN 200410062713 CN 200410062713 A CN200410062713 A CN 200410062713A CN 1719788 A CN1719788 A CN 1719788A
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Abstract
This invention discloses a call control and service listening method for software exchange listening including the following steps: a warning information center sets up connection with software exchange control devices and controls the users of the devices by listening instructions to correct or inquire attributes of related users. If the user is a controlled one, the device reports to the information center the call state information of the controlled user after starting the calling and instructs a data collection device to collect the call communication content information and forward it to the information center to relicate it, after the call is finished, the devices release the occupied resources and stop listening the call.
Description
Technical field
The present invention relates to the soft switchcall server terminal use and monitor, particularly next generation network (NextGeneration Network, NGN) in, the calling control of soft switchcall server and SM service monitoring method.
Background technology
Soft switchcall server realizes that the interface of monitor function is called policing interface (lawful interception interface), and the policing interface (lawful interception interface) main purpose is for to safeguarding national security, and hits various forms of crimes.Along with the struggle against terror in the global range is fierce day by day, national governments are also more and more higher to the attention degree of Lawful Interception, formulate corresponding laws and regulations one after another, and the access that the support of Lawful Interception is also progressively become the network equipment one of requires.
Policing interface (lawful interception interface) is meant that right of state office monitors by special equipment according to legal program the specific communications user, monitor content comprise dialog context and with call out relevant information.Along with rapid development of network technology, monitor content and be endowed a lot of new contents.
The function of policing interface (lawful interception interface) is to the Telecommunication network equipment fail safe with under the prerequisite that all business does not have any impact, and realizes real-time tracking and monitoring to all traffics of controlled object and non-traffic activity.The equipment supplier provides the Lawful Interception function for operation equipment, has become the household function of communication equipment.
In circuit-switched network, adopt all-calls with intercepted user, route is out to audiomonitor, again by audiomonitor, call proceeding is realized to the mode on called subscriber's the circuit.Just will set up a physical path between intercepted user circuit and the audiomonitor, then, realize the monitoring on monitor board to the physical path of called subscriber's circuit by setting up an audiomonitor.
Yet along with development of internet technology, modern telecom network evolves to NGN network based on packet switch by circuit-switched network gradually.Because packet network and circuit-switched network networking mode, voice load mode, professional different, cause the monitor method of present circuit-switched network can not adapt to the monitoring needs of next generation network well.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of calling control and SM service monitoring method that is applied to the monitoring of soft exchange of next generation network, can realize the monitoring of soft exchange function in the next generation network.
In order to solve above technical problem, the invention provides a kind of calling control and SM service monitoring method of monitoring of soft exchange, be applied to may further comprise the steps in the next generation network:
(a) after Lawful Interception Center and soft switch control appliance connect, send the monitoring instruction to this soft switch control appliance;
(b) after described soft switch control appliance is received and monitored instruction, revise or inquire about associated user's attribute information and return response;
(c) rise exhale after, described soft switch control appliance judges whether the user who participates in calling out is controlled user, if, execution in step (e), otherwise carry out next step;
(d) handle by the normal call flow process, finish;
(e) described soft switch control appliance reports the state information of controlled customer call to described Lawful Interception Center;
(f) behind the call setup, the data acquisition equipment that described soft switch control appliance is controlled this calling begins the collection communication content information, is forwarded to described Lawful Interception Center at last;
(g) behind the end of calling, each equipment discharges shared resource, finishes the monitoring to this calling.
Further, above-mentioned calling control and SM service monitoring method can have following characteristics: described data acquisition equipment is born by the IAD of this calling, in described step (f), IAD sends to the submission gateway with controlled object Content of Communication information under the control of described soft switch control appliance, by submitting to gateway to re-send to Lawful Interception Center; Perhaps, described data acquisition equipment is born by special motoring gateway, in described step (f), described soft switch control appliance at first sends medium order that continues to this motoring gateway, finish being connected of two ports on calling and called end points and this motoring gateway, realize the forwards of two transit ports, assign snoop command then, control this motoring gateway controlled user's communications content-message is gathered, and directly be forwarded to described Lawful Interception Center.
Further, above-mentioned calling control and SM service monitoring method can have following characteristics: in above-mentioned steps, described Lawful Interception Center sends described monitoring instruction and receives response to the soft switch control appliance by the command interface of special use; Reporting events interface by special use receives the described call status information that the soft switch control appliance reports after connecting; Content of Communication by special use transmit interface set up with data acquisition equipment between bearer path be connected; Receive the described Content of Communication message that described data acquisition equipment transmits by this bearer path.
Further, above-mentioned calling control and SM service monitoring method can have following characteristics: ICP/IP protocol is adopted in the communication of described command interface, reporting events interface, Lawful Interception Center and the Signalling exchange between the soft switch control appliance that described Content of Communication transmits interface adopt Session Initiation Protocol, and the IP agreement is adopted in the transmission of the controlled telex network content between Lawful Interception Center and data acquisition equipment.
Further, above-mentioned calling control and SM service monitoring method can have following characteristics: the call status information in the described step (e) comprises: call out the actual state information that takes place in initiation and foundation, call answering, media modification, the opening and closing of Media Stream passage, media capability description, subscriber signaling and network signal, calling release, the generation of predefine business event, the passage foundation of Content of Communication transmission interface bearing and the deletion information; Described soft switch control appliance also can report to connect by described reporting events interface sets up, connects release, user's registration, user log off and alarm event.
Further, above-mentioned calling control and SM service monitoring method can have following characteristics: in the described step (a), Lawful Interception Center comprises to the monitoring instruction that described soft switch control appliance sends by described command interface: controlled object settings, controlled object parameter modification, controlled object are cancelled, in inquiring about one or more of controlled object parameter query, controlled object list query, system time inquiry, target information.
Further, above-mentioned calling control and SM service monitoring method can have following characteristics: the signaling that transmits by described Content of Communication transmission interface between described soft switch control appliance and Lawful Interception Center comprises: bearer path request to create and response, media modification report, bearer path are monitored content and are transmitted message and bearer path removal request and response.
Further, above-mentioned calling control and SM service monitoring method can have following characteristics: when described Lawful Interception Center and described soft switch control appliance connect, a side who receives connection request will carry out authentication to a side who initiates request, authentication by after send again and receive response, otherwise rejection.
Further, above-mentioned calling control and SM service monitoring method can have following characteristics: using before the described command interface must be with having the account number login of high commissioner with authority, and described command interface, reporting events interface and Content of Communication transmit interface and use the special instruction that is different from the general switch instruction mutual.
Further, above-mentioned calling control and SM service monitoring method can have following characteristics: the reported event message that monitoring instruction that described Lawful Interception Center sends and described soft switch control appliance send, all send to one earlier and submit gateway to, submit to gateway forwards to described soft switch control appliance by this again.
Compared with prior art, monitoring of soft exchange calling-control method of the present invention can be realized the voice-and-data monitoring in next generation network, and more traditional circuit-switched network is monitored, and has expanded monitoring service, has saved circuit resource, has improved monitoring efficient.
Description of drawings
Fig. 1 is the networking diagram of embodiment of the invention soft exchange monitoring system.
Fig. 2 is the functional block diagram of embodiment of the invention soft exchange monitoring system.
Fig. 3 is the workflow diagram of embodiment of the invention X1 interface.
Fig. 4 is the workflow diagram of embodiment of the invention X2 interface.
Fig. 5 is the workflow diagram of embodiment of the invention X3 interface.
Fig. 6 is that embodiment of the invention basic call server call is monitored flow chart.
Fig. 7 is the professional called monitoring flow chart of embodiment of the invention basic call.
Fig. 8 is that embodiment of the invention call waiting is monitored flow chart.
Embodiment
In soft switchcall server, audiomonitor is monitored information such as all business activities of controlled object (promptly by the Softswitch terminal of being deployed to ensure effective monitoring and control of illegal activities, as: fixed line incoming unit, the H.323 network equipment, the SIP network equipment, IP protocol terminal equipment) and Content of Communication.Mainly form from the function division by CCF, data acquisition function, four parts of submission function and content reproduction function.These four functions are realized by soft switch control appliance, data acquisition equipment (IAD or motoring gateway), submission gateway device (DF) and Lawful Interception Center (LIC) respectively.The network configuration of soft exchange monitoring system as shown in Figure 1, soft switch control appliance, IAD, motoring gateway (LI GW) and submit to gateway to interconnect through IP network submit to gateway to be connected with Lawful Interception Center by standard policing interface (lawful interception interface) (X interface).Accessing gateway equipment generally has SGW, Tandem Gateway, H323 gateway, H248 gateway, SIP gateway, MGCP gateway, comprehensive access gate etc.
The soft switch control appliance is the core control equipment of packet network, also is the control core of whole monitoring system.In order to realize the monitoring of soft exchange function, the call processing module of soft switch control appliance must possess the call control process flow process of monitoring, mainly finish and receive Lawful Interception order, snoop command response, the target monitoring attribute is judged and monitored call continues reporting events such as control, call status information and alarm, and functions such as control that the controlled object Content of Communication is gathered, transmitted.
IAD mainly is responsible for the protocol adaptation function is provided, and accepts the snoop command that the soft switch control appliance is assigned, and controlled object Content of Communication message is gathered, and be forwarded to the submission gateway, by submitting to gateway to send to Lawful Interception Center.The gateway device of considering not all producer can both provide the reality of data acquisition function, and the monitored data acquisition function can be realized by motoring gateway.
The medium that motoring gateway mainly be responsible for to receive the soft switch control appliance order that continues, finish being connected of two ports on calling and called end points and this equipment, finish two transit ports forwards functions, and receive the snoop command that the soft switch control appliance is assigned, controlled object Content of Communication message is gathered, when adopting motoring gateway to gather the controlled object Content of Communication, can directly send to Lawful Interception Center by motoring gateway.
Submit to gateway mainly to finish the X interface of management with Lawful Interception Center, and with the P interface between soft switch control appliance or the gateway, transmit signaling, message and Content of Communication between Lawful Interception Center and soft switch control appliance, IAD or the motoring gateway, in case of necessity message is carried out encoding and decoding and encryption and decryption.
Lawful Interception Center is mainly used in to soft switchcall server and sends the monitoring instruction, receive command response message, receipt of call state information, warning information, receive controlled object Content of Communication and relevant signaling message, and the packet that receives finished reproduction, to functions such as the encoding and decoding of message and encryption and decryption.
Fig. 2 is the functional block diagram of present embodiment soft exchange monitoring system.Clearly show that annexation and interface between each equipment, wherein the X interface is the standard protocol interface between soft switchcall server and the Lawful Interception Center, also is policing interface (lawful interception interface), is made up of X1, X2, three interfaces of X3.In the present embodiment, X1 interface, X2 interface on the LIC all are connected to the submission gateway, but also can be directly connected to the soft switch control appliance, X3 interface signaling passage is between soft switch control appliance and LIC, and its bearer path is then being submitted between gateway and the LIC.For convenience, hereinafter will be referred to as soft switchcall server (SS) with soft switch control appliance and IAD, motoring gateway and the relevant device that LIC communicates.
To describe definition below in detail to each interface.
The X1 interface is a command interface, and the X1 interface physically can be the existing general man-machine communication control interface of Telecommunication network equipment, but must satisfy high speed, requirement reliably.Interface adopts ICP/IP protocol, and its work protocol stack is: TCP/IP ISO/IEC 802.2, ISO/IEC 802.3.LIC passes through the X1 interface and sends the monitoring instruction to SS, and receives from the next command response message of X1 interface.The X1 interface is mainly finished following function in the present embodiment:
1. connect and set up, during the LIC access softswitch system, set up the X1 connection of LIC to soft switchcall server, soft switchcall server authenticates the access of LIC.If support encryption function, set up exchange encrypt parameter in the process in connection.
2. connect to discharge, discharge LIC and be connected with X1 between the soft switchcall server.LIC can initiate to be connected release with soft switchcall server.
3. controlled object is set, and LIC asks soft switchcall server, is controlled state with goal-setting, and the controlled parameter of this controlled object is set simultaneously, as: controlled type of service, data output type (as life event, Content of Communication), X2 interface address etc.
4. controlled object is revised, and LIC asks soft switchcall server, revises the controlled parameter of controlled object, as: controlled type of service, data output type, X2 interface address etc.
5. controlled object is cancelled, and LIC asks soft switchcall server, cancels the monitoring to controlled object.
6. controlled object parameter query, LIC asks soft switchcall server, the controlled parameter of inquiry controlled object.
7. the controlled object list query according to the type of target identification, is inquired about the identification list of all controlled objects in soft switchcall server, and soft switchcall server reports LIC with the identification list of all controlled objects of specified type.
8. system time inquiry, LIC is to the soft switchcall server inquiry system time, and soft switchcall server reports LIC with current system time after receiving query requests.
9. user profile inquiry, LIC can inquire the user profile of designated user.
Shown in workflow Fig. 3 of X1 interface, after LIC and SS connect by the X1 interface, finish the request of instruction and reply release connection at last.
X2 interface is the reporting events interface, and X2 interface physically can be the existing general man-machine communication control interface of Telecommunication network equipment, but must satisfy high speed, requirement reliably.Interface should adopt ICP/IP protocol, and its work protocol stack is: TCP/IP ISO/IEC 802.2, ISO/IEC 802.3.X2 interface is used to finish and connects foundation request, connection establishment response, connection and discharge functions such as notice, life event report, alarm event reports.
Life event reports to be used to report and calls out dependent event and call out extraneous events.Wherein: call out that relevant incident comprises call setup incident, ring incident, replys incident, release event, call interruption incident, supplementary services call incident, supplementary service Action Events etc.Call out irrelevant incident and include customer registration affair, user's off-line incident, message transmission incident, message sink incident etc.Alarm event reports and is used to report the alarm information that causes the soft switchcall server policing interface (lawful interception interface) to produce because of hardware and software failure.
The event message of corresponding transmission mainly contains:
1.TcpOpen, connecting and set up request message, foundation is connected with opposite equip..
2.TcpClose, connect the release request message, close the connection of opposite equip..
3.Register, user's registration message.
4.Unregister, user log off message.
5.Origination controlled object makes a call.
6.TerminationAttempt controlled object is done called foundation and is called out.
7.Answer, call answering, two-way call connects sets up successfully.
8.CCChange media modification changes the call capabilities attribute, when the media description bag of calling out (SDP), when bandwidth information is modified, must produce CCChange message.
9.CCOpen the Media Stream passage is opened, beginning call transmission content information.
10.CCClose, Media Stream pathway closure, terminated call content delivery.
11.MediaReport, describe to the media capability of LIC report controlled object, as SDP information.
12.NetworkSignal network signal is as various signal tones, message notifying.
13.SubjectSignal, subscriber signaling, controlled object Sending dialled number, dislodging machine signaling message etc.
14.Release, the monitoring objective call release.
15.ServiceInstance controlled object produces the business event that pre-defines.
16.X3channelCreate the X3 bearer path is set up reporting events.
17.X3channelDelete X3 bearer path deletion event reports.
Shown in workflow Fig. 4 of X2 interface, after LIC and SS connected by X2 interface, SS carried out reporting events by above-mentioned message, discharged at last to connect.
The X3 interface is that Content of Communication transmits interface, and voice communication, the data communication content of controlled object outputed to Lawful Interception Center in real time from SS.The X3 interface adopts the IP mode, comprises that call signalling flow and bearer path data send two parts.The X3 interface signaling process is produced by the soft switch control appliance, be equal to general call signalling flow, foundation, release, the media capability of mainly finishing bearer path change functions such as report, signalling path is to LIC from the soft switch control appliance, adopt Session Initiation Protocol, its work protocol stack is followed RFC3261; The X3 bearer path is used to realize that the monitoring objective Content of Communication is from submitting the transmission of gateway to LIC to.The bearing capacity of its bearing capacity and controlled object is identical.Its work protocol stack is: ISO/IEC 802.2, ISO/IEC 802.3.
The major function of X3 interface is as follows, asks the workflow of while with reference to X3 interface among Fig. 5.
1. bearer path is created.When the success of controlled device call setup, when the beginning Media Stream transmits, soft switchcall server will be initiated message content and be monitored flow process.Soft switchcall server sends X3 bearer path request to create message INVITE to LIC, LIC according to INVITE with parameters for authentication, carry out authentication, if success then return the X3 bearer path and create successful response message OK.After creating successfully, communication information is submitted beginning to, the duplicate of transmission controlled device Content of Communication between two end points that soft switchcall server indicates by this bearer path.
2. bearer path deletion is found by eavesdropping target's end of calling when soft switchcall server, initiates X3 passage deletion flow process.Soft switchcall server sends X3 passage deletion request message BYE to LIC, and communication information is submitted to and finished, and after LIC receives X3 passage deletion BYE message, returns X3 passage deletion response message OK.
3. media modification report in the process of monitoring, changes as the media information of controlled object, and soft switchcall server should be reported to LIC.
4. bearer path is monitored the content transmission, the Content of Communication message of bearer path transmission is from being duplicated out eavesdropping target's the Content of Communication, soft exchange monitoring system can not change the communication information of controlled object, and bearer path transmission ground IP encapsulation header can be different with the IP encapsulation header of controlled object.
In the present embodiment, the interface between the Call Control Block of soft switch control appliance and submission gateway is the P interface, comprises three interfaces of P1, P2 and P3.Wherein, the P1 interface is corresponding with the X1 interface, is used for signaling message transmission.The P2 interface is corresponding with X2 interface, and the P3 interface is corresponding with X3 interface bearing passage.The P interface can be the self-defining internal interface of Softswitch manufacturing firm, need to prove, X1, X2 interface also can be on SS, without submitting gateway to.
And the A interface between soft switch control appliance and IAD or motoring gateway is a gateway control protocol, can be standard agreement, can be internal agreement also, as adopts H.248/MGCP agreement.The soft switch control appliance carries out the monitored data collecting work by A interface notification gateway to controlled object.
Confidentiality and fail safe are the primary requirements of policing interface (lawful interception interface) (X interface).For preventing unwarranted Lawful Interception Center access softswitch system, prevent that soft switchcall server from reporting monitoring information to illegal listening center, the policing interface (lawful interception interface) between Lawful Interception Center and the soft switchcall server (X interface) must be set up necessary encryption, authentication mechanism.
Important operation in the policing interface (lawful interception interface) must just can carry out after the username and password login by special use, and its authority setting is the highest dedicated operations authority, and the modification of password and distribution should only be undertaken by the personnel that grasp highest password.In addition, the policing interface (lawful interception interface) kernel instruction must be the special instruction that is different from the general switch instruction, and the instruction set of X1 interface should have the highest security and the confidentiality of system.In addition, for the consideration of fail safe, confidentiality, the network address that policing interface (lawful interception interface) should specify the legal monitoring information center to insert.Do not allow the other system of non-appointment to insert.
Based on said system, the embodiment of the invention realizes that the basic procedure of call monitoring may further comprise the steps:
Step 110, Lawful Interception Center sends connection request to the soft switch control appliance, the soft switch control appliance carries out authentication, by after send and receive response, otherwise refusal connects, and finishes;
Step 120, Lawful Interception Center sends user's snoop command to the soft switch control appliance, as the order that a certain user is deployed to ensure effective monitoring and control of illegal activities;
Step 130, the soft switch control appliance is preserved the order that Lawful Interception Center is sent, and revises associated user's attribute information, responds response message;
Step 140 is initiated and is set up when calling out, and the soft switch control appliance judges whether the needs monitoring according to the attribute information of caller and called users, if desired, carries out next step, otherwise, handle the back by the normal call flow process and finish;
Step 150, the soft switch control appliance reports the state information of controlled customer call to Lawful Interception Center, as off-hook, collect the digits, called terminal ringing, conversation or the like;
Step 160, after controlled user's communication process is set up, IAD will copy the submission gateway to through its controlled user's communications content under the control of soft switch control appliance, by submitting to gateway that it is forwarded to Lawful Interception Center;
Step 170, Lawful Interception Center receives the Content of Communication information of controlled object, carries out corresponding reproduction and handles;
Step 180, after the end of calling, each equipment discharges shared resource, finishes the monitoring to this calling.
In step 160, when IAD does not possess the copy function of Content of Communication, the soft switch control appliance is routed to motoring gateway with calling and called Media Stream port, again by motoring gateway under the control of soft switch control appliance, finish the mutual forwarding of calling and called Content of Communication and medium stream information to the transmission of submitting gateway to.
In the NGN network, except speech business, monitoring of soft exchange method of the present invention also can further support to supplementary service operation (as: activation of service, service deactivation, professional registration, business are gone registration), fax and circuit data service, message, with call out irrelevant activity (as registration, nullify), and the monitoring work of Internet business (as all Internet agreements such as ICQ, HTTP).
Describe with the calling control and the SM service monitoring method of 3 concrete operation flows below, suppose deploying to ensure effective monitoring and control of illegal activities of user finished monitoring of soft exchange of the present invention.Because the particularity of soft switchcall server, variety of protocol may there are differences, so flow process has adopted abstract primitive to describe calling procedure, every kind of agreement flow process all can be mapped to this abstract calls primitive flow process.But for the gateway of different agreement type, register flow path, aaa authentication flow process and dialing flow process may have difference, and what have may not have dialer event, and number carries in Setup message, and also the possibility step-by-step number of sending out so just has repeatedly dialer event.
Fig. 6 has illustrated basic call server call monitoring flow process, and wherein user A is a controlled object, initiates a call to user B, and B can not be the SS local user.Belong to normal call flow between SS and the user gateway equipment (GW), adopt stereotyped command, thereby below will mainly introduce the information interactive process that passes through three policing interface (lawful interception interface) X1, X2 and X3 pass-along message between SS and the LIC.
This flow process may further comprise the steps:
Party A-subscriber's gateway device electrifying startup, gateway device is initiated register requirement (Regist request) to SS;
After SS receives registration message, judge that it belongs to controlled device, set up the TCP connection of request message (TCPOpen) foundation, after the TCP connection is set up successfully, report registration message (Register) to the LICX2 interface with the LIC X2 interface by connection;
Behind user A off-hook, call out beginning, SS judges that this user is controlled user, carry out and monitor handling process, by subscriber signaling message (SubjectSignal), X2 interface to LIC reports offhook message, reports the calling subscriber to hear the dialing tone event message by network signal message (NetworkSignal) to the X2 interface of LIC;
When SS receives subscriber dialing message, report dial content message to the X2 interface of LIC by subscriber signaling message (SubjectSignal);
SS is by number analysis, and a series of actions such as Route Selection have been initiated to exhale to the called subscriber, behind the call setup, notifies the X2 interface of LIC by the controlled object message (Origination) that makes a call, and indicates the controlled object caller to make a call;
When SS received called terminal ringing message (Alerting), with the X2 interface of network signal message (NetworkSignal) notice LIC, the called subscriber is ring;
When SS received called offhook message (connect), with the X2 interface of call answering message (Answer) notice LIC, indication the called subscriber replied;
After speech path channel is set up between the calling and called, begin to transmit Content of Communication message, SS sets up the X3 interface of asking notice LIC by bearer path, sets up a bearer path;
After the success of bearer path path setting, SS sets up the X2 interface of reporting events message (X3ChannelCreate) notice LIC with the X3 bearer path, bearer path is set up successfully, opens the X2 interface that message (CCOpen) is notified LIC with the Media Stream passage, and beginning call contents information transmits;
LIC is by the CCC message sink Content of Communication message of X3 interface;
Called subscriber's on-hook, after calling discharged, SS sent bearer path deletion message to the X3 of LIC interface, notice X3 interface, this Content of Communication message transmission finishes;
SS is by the X2 interface of X3 bearer path deletion event reporting message (X3ChannelDelete) notice LIC, and the X3 bearer path is deleted; Call contents message flow with this calling of Media Stream pathway closure message (CCClose) notice X2 interface stops; And monitoring objective call release message (Release) mail to X2 interface, (NetworkSignal) delivers to X2 interface with busy tone message by network signal message;
After The Calling Party Hooks On, SS called out fully and finishes by subscriber signaling message (SubjectSignal) notice another user of X2 interface on-hook;
When TCP connection deletion condition satisfies, discharge the TCP connection closed of request message (TCPClose) with X2 interface with connecting.
Fig. 7 has illustrated the professional called monitoring flow process of basic call, and wherein user A is a controlled object, and user B initiates a call to user A, and user B is not this session service user.As shown in the figure, may further comprise the steps:
Party A-subscriber's gateway device electrifying startup, gateway device is initiated register requirement (Regist request) to SS;
After SS receives registration message, judge that it is a controlled device, set up the TCP connection of request message (TCPOpen) foundation, after the TCP connection is set up successfully, report registration (Register) message to the LICX2 interface with the LIC X2 interface by connection;
User B off-hook, dialing, SS is by a series of actions such as number analysis, Route Selection, initiate call message to user A, SS judge called be controlled user after, controlled object is done the called X2 interface that message related to calls (TerminationAttempt) is notified LIC of setting up;
When SS received called terminal ringing message (Alerting), with the X2 interface of network signal message (NetworkSignal) notice LIC, the called subscriber is ring;
When SS received called offhook message (connect), by the called off-hook of X2 interface of subscriber signaling message (SubjectSignal) notice LIC, with the X2 interface of call answering message (Answer) notice LIC, indication the called subscriber replied;
Speech path channel is set up between the calling and called, begins to transmit Content of Communication message, and SS sets up the X3 interface of asking notice LIC by bearer path, sets up a bearer path path; After the success of bearer path path setting, SS sets up the X2 interface of reporting events message (X3ChannelCreate) notice LIC with the X3 bearer path, speech path channel is set up successfully, opens the X2 interface that message (CCOpen) is notified LIC with the Media Stream passage, and beginning call contents information transmits;
LIC is by the CCC message sink Content of Communication message of X3 interface;
Called subscriber's on-hook, SS sends subscriber signaling message (SubjectSignal) to the X2 interface of LIC, and indication user on-hook sends bearer path deletion message to the X3 of LIC interface, notice X3 interface, this Content of Communication message transmits and finishes;
Then, SS is by the X2 interface of X3 bearer path deletion event reporting message (X3ChannelDelete) notice LIC, and the X3 bearer path is deleted; And stop with the call contents message flow of this calling of Media Stream pathway closure message (CCClose) notice X2 interface;
SS discharged with called the connection after, monitoring objective call release message (Release) is mail to X2 interface, discharge the TCP connection closed of request message (TCPClose) with connecting with X2 interface.
Fig. 8 has illustrated call waiting monitoring flow process, and wherein user A is a controlled object, and A initiates a call to B, and A has call waiting; C calls out A and triggers call waiting, illustrates the process of monitoring AB, two callings of CA, and B and C may not be this session service users.
User A gateway registers on SS and the monitoring handling process of AB call setup, conversation and basic call caller to monitor flow process the same, after AB began conversation, LIC was by the CCC message sink Content of Communication message of X3 interface;
At this moment, user C off-hook is also dialed the number of user A, after SS is known, do the called X2 interface of setting up message related to calls (TerminationAttempt) notice LIC by controlled object, produce the business event message (ServiceInstance) that pre-defines by controlled object, indication user A activates call waiting;
SS sends call waiting tone to user A, and notifies the X2 interface of LIC by network signal message (NetworkSignal);
User A hooking, SS notifies the X2 interface of LIC by subscriber signaling message (SubjectSignal), and by the business event message (ServiceInstance) that the controlled object generation pre-defines, indicates user A to activate call hold service;
SS calls out calling out between AB to change between hold mode preparation connection AC, and SS replys with the X2 interface of call answering message (Answer) notice LIC, indication user A;
After speech path channel was set up between AC, SS sent the media modification report to the X3 of LIC interface, and to the X2 interface report media modification information (CCChange) of LIC, LIC is by the CCC message sink Content of Communication message of X3 interface then;
After connecting release between AC, SS mails to X2 interface with monitoring objective call release message (Release);
Behind the call recovery, SS sends the media modification report to the X3 of LIC interface between AB, and to the X2 interface report media modification information (CCChange) of LIC, LIC is by the CCC message sink Content of Communication message of X3 interface then;
After the user B on-hook, it is the same after called subscriber's on-hook that SS monitors in the flow process with the basic call caller with the handling process between LIC, does not repeat them here.
Equally, the present invention goes for other supplementary service, as not online preceding (called gateway is unregistered), user's Call Forwarding-Unreachable, divert when busy, Call Forwarding No Reply, calling switching, conference telephone, calling maintenance, repeated call, call back service, the urgent special clothes or the like of changeing of Three-Way Calling, Call Forwarding Unconditional, user, do not change and influence original normal call flow process, just in calling procedure, to carry out the real-time report of call status information and duplicating and reproduce to dialog context to controlled object.Thereby monitoring of soft exchange method of the present invention has realized all traffics of controlled object and non-traffic activity are carried out real-time tracking and monitoring to the Telecommunication network equipment fail safe with under the prerequisite that all business does not have any impact.
Claims (10)
1, a kind of calling control of monitoring of soft exchange and SM service monitoring method are applied to may further comprise the steps in the next generation network:
(a) after Lawful Interception Center and soft switch control appliance connect, send the monitoring instruction to this soft switch control appliance;
(b) after described soft switch control appliance is received and monitored instruction, revise or inquire about associated user's attribute information and return response;
(c) rise exhale after, described soft switch control appliance judges whether the user who participates in calling out is controlled user, if, execution in step (e), otherwise carry out next step;
(d) handle by the normal call flow process, finish;
(e) described soft switch control appliance reports the state information of controlled customer call to described Lawful Interception Center;
(f) behind the call setup, the data acquisition equipment that described soft switch control appliance is controlled this calling begins the collection communication content information, is forwarded to described Lawful Interception Center at last;
(g) behind the end of calling, each equipment discharges shared resource, finishes the monitoring to this calling.
2, the method for claim 1, it is characterized in that, described data acquisition equipment is born by the IAD of this calling, in described step (f), IAD sends to the submission gateway with controlled object Content of Communication information under the control of described soft switch control appliance, by submitting to gateway to re-send to Lawful Interception Center; Perhaps, described data acquisition equipment is born by special motoring gateway, in described step (f), described soft switch control appliance at first sends medium order that continues to this motoring gateway, finish being connected of two ports on calling and called end points and this motoring gateway, realize the forwards of two transit ports, assign snoop command then, control this motoring gateway controlled user's communications content-message is gathered, and directly be forwarded to described Lawful Interception Center.
3, the method for claim 1 is characterized in that, in above-mentioned steps, described Lawful Interception Center sends described monitoring instruction and receives response to the soft switch control appliance by the command interface of special use; Reporting events interface by special use receives the described call status information that the soft switch control appliance reports after connecting; Content of Communication by special use transmit interface set up with data acquisition equipment between bearer path is connected, receive the described Content of Communication message of described data acquisition equipment transmission by this bearer path.
4, method as claimed in claim 3, it is characterized in that, ICP/IP protocol is adopted in the communication of described command interface, reporting events interface, Lawful Interception Center and the Signalling exchange between the soft switch control appliance that described Content of Communication transmits interface adopt Session Initiation Protocol, and the IP agreement is adopted in the transmission of the controlled telex network content between Lawful Interception Center and data acquisition equipment.
5, method as claimed in claim 3, it is characterized in that the call status information in the described step (e) comprises: call out the actual state information that takes place in initiation and foundation, call answering, media modification, the opening and closing of Media Stream passage, media capability description, subscriber signaling and network signal, calling release, the generation of predefine business event, the passage foundation of Content of Communication transmission interface bearing and the deletion information; Described soft switch control appliance also can report to connect by described reporting events interface sets up, connects release, user's registration, user log off and alarm event.
6, method as claimed in claim 3, it is characterized in that, in the described step (a), Lawful Interception Center comprises to the monitoring instruction that described soft switch control appliance sends by described command interface: controlled object settings, controlled object parameter modification, controlled object are cancelled, in inquiring about one or more of controlled object parameter query, controlled object list query, system time inquiry, target information.
7, method as claimed in claim 3, it is characterized in that the signaling that transmits by described Content of Communication transmission interface between described soft switch control appliance and Lawful Interception Center comprises: bearer path request to create and response, media modification report, bearer path are monitored content and transmitted message and bearer path removal request and response.
8, the method for claim 1, it is characterized in that, when described Lawful Interception Center and described soft switch control appliance connect, receive that a side of connection request will carry out authentication to a side who initiates request, authentication by after send again and receive response, otherwise rejection.
9, method as claimed in claim 3, it is characterized in that, using before the described command interface must be with having the account number login of high commissioner with authority, and described command interface, reporting events interface and Content of Communication transmit interface and use the special instruction that is different from the general switch instruction mutual.
10, method as claimed in claim 3, it is characterized in that, the reported event message that monitoring instruction that described Lawful Interception Center sends and described soft switch control appliance send all sends to one earlier and submits gateway to, submits to gateway forwards to described soft switch control appliance by this again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410062713 CN1719788A (en) | 2004-07-07 | 2004-07-07 | Method for call controlling and service monitoring of soft exchange monitoring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410062713 CN1719788A (en) | 2004-07-07 | 2004-07-07 | Method for call controlling and service monitoring of soft exchange monitoring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1719788A true CN1719788A (en) | 2006-01-11 |
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ID=35931518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410062713 Withdrawn CN1719788A (en) | 2004-07-07 | 2004-07-07 | Method for call controlling and service monitoring of soft exchange monitoring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1719788A (en) |
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| CN101296270B (en) * | 2007-04-28 | 2010-10-20 | 华为技术有限公司 | Legal monitoring method, communication system, router and monitoring gateway |
| CN101123784B (en) * | 2006-08-11 | 2011-04-13 | 华为技术有限公司 | Processing method and device for legal monitoring under mobile communication system network environment |
| CN101296110B (en) * | 2007-04-29 | 2011-04-20 | 中兴通讯股份有限公司 | Real-time monitoring apparatus and method |
| CN101388801B (en) * | 2007-09-14 | 2011-10-05 | 华为技术有限公司 | Legal listening method, system and server |
| CN103152748A (en) * | 2011-12-07 | 2013-06-12 | 华为技术有限公司 | Method, base station and terminal of communication monitoring |
| CN103354666A (en) * | 2011-12-07 | 2013-10-16 | 华为技术有限公司 | Communication method, base station and terminal |
| CN103974277A (en) * | 2013-01-30 | 2014-08-06 | 电信科学技术研究院 | Data transmission method, devices and system |
| CN104754599A (en) * | 2013-12-26 | 2015-07-01 | 上海粱江通信系统股份有限公司 | System and method for realizing interception based on signaling technology |
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| CN112532546A (en) * | 2020-11-24 | 2021-03-19 | 上海浦东发展银行股份有限公司 | Call route selection method based on soft switch |
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| CN101123784B (en) * | 2006-08-11 | 2011-04-13 | 华为技术有限公司 | Processing method and device for legal monitoring under mobile communication system network environment |
| CN101296270B (en) * | 2007-04-28 | 2010-10-20 | 华为技术有限公司 | Legal monitoring method, communication system, router and monitoring gateway |
| CN101296110B (en) * | 2007-04-29 | 2011-04-20 | 中兴通讯股份有限公司 | Real-time monitoring apparatus and method |
| CN101388801B (en) * | 2007-09-14 | 2011-10-05 | 华为技术有限公司 | Legal listening method, system and server |
| CN103354666B (en) * | 2011-12-07 | 2017-09-26 | 华为技术有限公司 | Communication means, base station and terminal |
| CN103152748B (en) * | 2011-12-07 | 2015-11-25 | 华为技术有限公司 | communication monitoring method, base station and terminal |
| CN103354666A (en) * | 2011-12-07 | 2013-10-16 | 华为技术有限公司 | Communication method, base station and terminal |
| CN103152748A (en) * | 2011-12-07 | 2013-06-12 | 华为技术有限公司 | Method, base station and terminal of communication monitoring |
| WO2013083074A1 (en) * | 2011-12-07 | 2013-06-13 | 华为技术有限公司 | Method, base station, and terminal for communication surveillance |
| US9544930B2 (en) | 2011-12-07 | 2017-01-10 | Huawei Technologies Co., Ltd. | Communication interception method, base station, and terminal |
| WO2014117658A1 (en) * | 2013-01-30 | 2014-08-07 | 电信科学技术研究院 | Data transmission method, device and system |
| CN103974277A (en) * | 2013-01-30 | 2014-08-06 | 电信科学技术研究院 | Data transmission method, devices and system |
| CN103974277B (en) * | 2013-01-30 | 2018-03-23 | 电信科学技术研究院 | A kind of data transmission method, equipment and system |
| CN104754599A (en) * | 2013-12-26 | 2015-07-01 | 上海粱江通信系统股份有限公司 | System and method for realizing interception based on signaling technology |
| CN111405121A (en) * | 2020-02-26 | 2020-07-10 | 深圳震有科技股份有限公司 | User behavior operation monitoring method and system based on voice call |
| CN112532546A (en) * | 2020-11-24 | 2021-03-19 | 上海浦东发展银行股份有限公司 | Call route selection method based on soft switch |
| CN113286380A (en) * | 2021-07-20 | 2021-08-20 | 四川优家库信息技术有限公司 | Communication establishing method, communication method and system based on middleware and Freeswitch |
| CN113286380B (en) * | 2021-07-20 | 2021-09-28 | 四川优家库信息技术有限公司 | Communication establishing method, communication method and system based on middleware and Freeswitch |
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