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WO2012048499A1 - Procédé et système de mise en oeuvre d'interception de service de prise d'appel - Google Patents

Procédé et système de mise en oeuvre d'interception de service de prise d'appel Download PDF

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Publication number
WO2012048499A1
WO2012048499A1 PCT/CN2010/079886 CN2010079886W WO2012048499A1 WO 2012048499 A1 WO2012048499 A1 WO 2012048499A1 CN 2010079886 W CN2010079886 W CN 2010079886W WO 2012048499 A1 WO2012048499 A1 WO 2012048499A1
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WIPO (PCT)
Prior art keywords
party
called
called party
lig
branch information
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PCT/CN2010/079886
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English (en)
Chinese (zh)
Inventor
李刚
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ZTE Corp
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ZTE Corp
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Filing date
Publication date
Application filed by ZTE Corp filed Critical ZTE Corp
Publication of WO2012048499A1 publication Critical patent/WO2012048499A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/42212—Call pickup
    • 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

Definitions

  • the present invention relates to the field of data communications, and in particular to a method and system for implementing call pickup service monitoring. Background technique
  • the service control point in the intelligent network In the current data communication field, in order to realize the monitoring of the intelligent network call, the service control point in the intelligent network generally carries the interception information to the service switching point, and the service switching point receives the monitoring information and then listens through the call connection.
  • the network element is added to the voice channel, so that the listening network element can be monitored by the dialogue channel.
  • the better technical solution is a method and system for implementing intelligent network call monitoring.
  • the patent application number is 200710187476.0, and the monitoring center is used to control the service point. Initiating the number setting control, when the number call triggers the service control point, the service control point checks whether the number is set.
  • the interception information is sent in the connection signaling sent to the service switching point, and the service switching point is based on the interception information.
  • the voice channel is connected to the monitoring center, and the monitoring center connects the voice channel to the real called party.
  • the monitoring center As the network element in the voice channel, the function of monitoring the voice channel is realized, as shown in FIG.
  • FIG. There is a schematic diagram of implementing the intelligent network call listening process in the technology.
  • the foregoing solution carries the interception information in the connection signaling sent to the service switching point at the service control point, so that the service switching point can add the interception network element to the session channel by monitoring the information.
  • the solution networking is simple and flexible.
  • the existing network changes are small, which greatly reduces the cost of network transformation. It can be realized only by adding links between the service switching point and the listening network element.
  • the ordinary call only carries the interception information to the service switching point in the connection signaling.
  • the service switching point does not perform other processing after the monitoring network element joins the voice channel through the connection message, but for the call pickup service, due to the called party
  • the number and media will change, if you don’t notify the follow-up
  • the listening network element cannot be successfully added to the session, and thus the monitoring function cannot be implemented.
  • the ordinary call has only two numbers of the calling party and the called party.
  • the intelligent network service can carry the calling and called number to the service switching point and the monitoring network element through the connection signaling, but for the call pickup service, the call pickup is The number will change. At this time, it is no longer sufficient to carry the number only through the connection signaling.
  • the present invention provides a method and system for implementing call pickup service monitoring, which is used to solve the problem of switching the interception voice channel and the monitoring number reporting of the call pickup service through the intelligent network service control.
  • a method for implementing call pickup service monitoring includes the following steps:
  • the service control point SCP sets the calling party and/or the called party to the number to be monitored. If the calling party is set to control, when the calling party calls the called party, the SCP generates the calling party to listen to the branch information and report it. To the listening network element LIG, the LIG is added to the voice channel between the calling party and the media gateway MSG for monitoring, and when the third party makes a call pickup, the voice channel between the called party and the MSG is released, and the calling party and the third party are The road is connected;
  • the SCP when the calling party calls the called party, the SCP generates the first listening branch information of the called party and reports it to the LIG, and adds the LIG to the voice channel between the called party and the MSG for monitoring.
  • the SCP When the three parties make a call pickup, the SCP generates the second interception branch information of the called party and reports it to the LIG, and adds the LIG to the voice channel between the third party and the MSG to release the voice channel between the called party and the MSG, and ends the conversation.
  • the interception of the voice channel between the calling party and the MSG connects the calling party to the third party's voice channel.
  • the SCP sets the calling party and/or the called party to the number to be monitored, and further includes: setting the third party to a number that needs to be monitored; and when the third party performs call pickup, the SCP further includes The SCP generates third-party monitoring branch information and reports it to LIG.
  • the calling party monitoring branch information includes: the calling party intercepts the branch information identifier, the calling party number, the called party number, and the called ringing time information;
  • the first listening branch information of the called party includes: a first listening branch information identifier of the called party, a calling party number, a called party number, and a called ringing time information;
  • the third-party monitoring branch information includes: a third-party monitoring branch information identifier, a third-party number, a called party number, and a called ringing time information;
  • the second interception branch information of the called party includes: a second interception branch information identifier of the called party, a third party number, a called party number, and a called ringing time information.
  • the method further includes: after receiving the ringing event of the called party, the SCP
  • the LIG is notified to update the called ringing time information in the calling party monitoring branch information
  • the LIG is notified to update the called ringing time information in the first listening branch information of the called party.
  • the SCP further includes: the SCP updates and reports the service information in the interception branch information of the called party, the called party, and the third party to the LIG. .
  • the service information update includes: changing the service type in the monitored branch monitoring branch information to call pickup, and changing the call participant number to the calling party number, the called party number, and the third party number to be picked up.
  • the method further includes: after receiving the on-hook event of the calling party or the called party, the SCP releases the signaling to the corresponding monitoring branch information on the LIG, and the LIG releases the monitoring branch information of the calling participant, and ends the monitoring of the voice channel.
  • a system for implementing call pickup service monitoring comprising:
  • SCP used to set the calling party and/or the called party to the number to be monitored; if the calling party is set to control, when the calling party calls the called party, the calling party generates the monitoring branch information and reports it to the calling party.
  • LIG When the third party makes a call pickup, the voice channel between the called party and the MSG is released, and the calling party and the third party's voice channel are connected; if the called party is set to control, when the calling party calls the called party, The first listening branch information of the called party is generated and reported to the LIG. When the third party performs call pickup, the second listening branch information of the called party is generated and reported to the LIG, and the voice channel between the called party and the MSG is released. Calling the party and the third party are connected;
  • the LIG is configured to join the voice channel between the calling party and the MSG after receiving the information of the calling party to listen to the branch information, and join the voice channel between the called party and the MSG after receiving the first listening branch information of the called party. Listening; After receiving the second listening branch information of the called party, it joins the voice channel between the third party and the MSG to monitor, and ends the monitoring of the voice channel between the called party and the MSG.
  • the SCP is further configured to: control the third party to be a number that needs to be monitored, and generate a third-party monitoring branch information and report it to the LIG when the third party performs call pickup.
  • the SCP is also used to: after receiving the ringing event of the called party,
  • the LIG is notified to update the called ringing time information in the calling party monitoring branch information
  • the LIG is notified to update the called ringing time information in the first listening branch information of the called party.
  • the method and system for implementing the call pickup service monitoring according to the present invention can realize the monitoring function more completely by adding the complete service call number information and the service change information to the LIG.
  • the monitoring function of the call pickup service can be realized without adding special equipment, which is very beneficial to the promotion of complex services.
  • FIG. 1 is a schematic diagram of a process for implementing an intelligent network call monitoring in the prior art
  • FIG. 2 is a schematic diagram of implementing call pickup service monitoring in an embodiment of the present invention
  • FIG. 3 is a schematic diagram of X2 link signaling for implementing call pickup service monitoring according to an embodiment of the present invention.
  • DETAILED DESCRIPTION OF THE INVENTION The present invention will be described in detail below with reference to the accompanying drawings and preferred embodiments.
  • the technical solution for implementing call pickup service monitoring according to the present invention does not need to add special equipment, and utilizes the service control point (SCP) of the existing broadband intelligent network system, and the service switching point (SS, Service Switching Point).
  • SCP service control point
  • SS service switching point
  • the Media Gateway (MSG, Message Gateway) can be implemented with the XG link between the intelligent network and the LIG.
  • the network elements mainly involved in the implementation of the present invention and the basic functions of the completion thereof are as follows:
  • SS responsible for the call access and trigger to the SCP. At the same time, it is responsible for the call operation requested by the SCP, and forwards the SCP's invite, update, canneK bye and other signaling to interact with the LIG to implement the voice monitoring function.
  • SCP is the core component of the intelligent network, storing user data and business logic; the main function of the SCP is to receive trigger messages from the SS, process the listening logic and control, send and update the channel monitoring information to the SS, and pass the X2 link to the LIG. Report the listening number and monitor the service information.
  • MSG is the media channel of the call.
  • LIG The function of monitoring is implemented, receiving the signaling processing session monitoring from the SS, receiving the signaling processing interception number sent by the SCP through the X2 link, and displaying the two together to the user or reporting to the upper listening interface. Show it.
  • the figure is a schematic diagram of implementing call pickup service monitoring according to the present invention. It can be seen from the figure that the method for implementing call pickup service monitoring according to the present invention includes the following steps:
  • Step 1 The LIG sends the number of the call pickup service monitoring to the SCP by setting a control command, and the SCP saves the control information of the number that needs to be monitored by the call pickup service.
  • Step 2 The user calls the SCP, and the SCP checks whether the calling party number is set. If there is no control, go to step 3. If the calling party number is set, the SCP calls the listening processing included in the call. The module generates and stores the calling party monitoring branch information, which has a unique identifier CIN1, in which the calling party and the called party number are recorded, and then the calling party monitoring branch information is reported to the X2 link between the SCP and the LIG. LIG.
  • the SCP sends the instance signaling to the SS, and the MSG is self-looped. (by making the station number analysis in the SS, the outgoing link passes through the MSG and relays the inbound relay from the ring to the MSG. The signaling re-arrives to the SS, number analysis. Triggering SCP again) After re-triggering the SCP, subsequent call processing is performed.
  • the calling party In the invite signaling sent to the SS, the calling party also needs to carry the interception branch information.
  • the SS sends the invite signaling to the LIG according to the calling party monitoring branch information carried in the invite signaling, and adds the LIG to the calling party and the MSG.
  • the LIG can listen to the calling party's voice channel, and the calling party number and the message reported by the X2 link according to the unique identifier CIN1 in the calling party's listening branch information.
  • the road corresponds.
  • Step 3 After the SCP performs the business logic processing, it is determined whether the called party number to be called is set to be controlled. If no control is set, the process proceeds to step 5; if the control is set, the interception processing module is called to generate and store the called party number. The called party first listens to the branch information, and the information has a unique identifier CIN2, in which the calling party and the called party number are recorded, and then the first listening branch information of the called party is reported to the X2 link between the SCP and the LIG. LIG.
  • the SCP sends the instance signaling to the SS, and the SS sends the invite signaling to the LIG according to the first listening branch information of the called party carried in the invite signaling, and adds the LIG to the called party media address and the MSG voice path, such as As shown in FIG. 2, the LIG can monitor the called party's voice channel and associate the call participant number reported by the X2 link with the voice channel according to the unique identifier CIN2 in the first listening branch information of the called party.
  • Step 4 When receiving the ringing event of the called party, the SCP updates the corresponding ringing time information of the listening branch information CIN1 and/or the monitoring branch information CIN2 and reports the ringing time information to the LIG.
  • the SCP updates the called ringing time information in the listening branch information CIN1 and reports it to the LIG; when the called party number is set, the SCP updates the listening branch.
  • the called ringing time information in the message CIN2 is reported to the LIG; when both the calling party number and the called party number are set, the SCP updates the called ringing time information in the listening branch information CIN1 and the listening branch information CIN2 and Reported to LIG.
  • Step 5 When the third party number performs call pickup, the SCP is triggered.
  • the SCP first determines whether the third party number is set. If there is no control, go to step 6. If the control is set, the SCP calls the interception processing module to generate and store the third party monitor. Branch information, which has a unique identifier CIN3, in which the primary and called party numbers are recorded; and then the third party monitoring branch information is sent to the LIG through the X2 link between the SCP and the LIG.
  • Step 6 The SCP further determines whether the called party number of the pickup is set. If there is no control, go to step 7. If the control is set, the interception processing module is called to generate the called party number for the pickup. The second monitoring branch information CIN4 is recorded, and the primary and called party numbers of the called party are recorded in the information, and then the second monitoring branch information of the called party is reported to the LIG through the X2 link between the SCP and the LIG. At the same time, the SCP sends the invite signaling to the SS, and then re-triggers the SCP through the ringback of the MSG, and then performs subsequent call processing.
  • the third-party monitoring branch information CIN3 and/or the called party is required to be carried.
  • the second monitoring branch information CIN4 (when the third party number is set, the invite signaling carries the third party listening branch information CIN3, and when the called party number is set, the invite signaling carries the second listening branch information of the called party.
  • CIN4 when the third party number and the called party number are both set, the invite signaling carries the third party listening branch information CIN3 and the called party second listening branch information CIN4), and the SS according to the listening branch carried in the invite signaling Information, send the instance signaling to the LIG, and add the LIG to the third party of the pickup and the MSG's voice path, as shown in Figure 2. In this way, the LIG can listen to the caller's voice channel, and according to the interception branch information.
  • the unique identifier CIN3 and/or CIN4 in the correspondence between the call participant number reported by the X2 link and the voice channel.
  • Step 7 The self-loop call initiated by the pickup initiates the SCP again.
  • the SCP will add the third party to the original call through the call inter-instance communication and the call join operation. After the SCP receives the call, the event is added to the call.
  • Send cancel to SS if the called party is not set to control
  • the signaling is to release the original called party voice; in the case that the called party is set to control, the first called branch information CIN2 of the called party of the called party is first released, and the SCP is reported to the LIG through the X2 link.
  • the listening branch releases the signaling, and sends cancel signaling to the SS to release the original called party voice channel. After the SS sends the cancel signaling to the LIG, the LIG ends the corresponding listening branch.
  • the SCP initiates update signaling to the SS, renegotiates the media on the called side, and negotiates the media of the third party that is picked up with the calling party.
  • the SS notifies the LIG to update the media on the called side according to the update signaling.
  • the calling party and the third party's voice channel are connected.
  • the SCP then reports to the LIG through the X2 link that the services of the called party number in the intercepted branch information of the called party, the called party, and the third party are changed to call pickup, and the original master is also required to be carried.
  • the LIG associates the calling party number reported by the X2 link with the voice channel according to the unique identifier in the monitoring branch information, and the service type in the monitoring branch information is changed to Call Pickup, change the calling party number to the calling party number, the called party number, and the third party number to be picked up.
  • Step 8 The SCP invokes the interception processing module to update the response information in the intercepted branch information of the called party, the called party, and the third party, and reports the monitoring branch response to the LIG through the X2 link.
  • Step 9 The SCP receives the hang-up event of the calling party or the called party, and sends the signaling of the corresponding monitoring branch information to the LIG through the X2 link, and simultaneously initiates a cancel or bye signaling to the LIG through the SS. monitor.
  • FIG. 3 is a schematic diagram of X2 link signaling for implementing call pickup service monitoring in this embodiment.
  • the calling process is that the calling party A calls the called party B, and the third party C picks up the called party B to make a call with the calling party A.
  • the specific process of implementing the call pickup service monitoring in the embodiment of the present invention as follows:
  • Step 1 LIG sends a control command to 8? Sets the number of A, B, and C.
  • the SCP stores the control information of the A, B, and C numbers.
  • the subject signaling of the listening branch information CIN1 is reported to the LIG through the X2 link, as shown in (1) of FIG. 3, and the loop signaling of the loop is sent to the SS, and the intercept branch information CIN1 is carried in the invoke signaling.
  • Step 3 The SCP is triggered again by the loopback.
  • the SCP invokes the interception processing module to generate the monitoring branch information CIN2 of the B number, including the unique identifier CIN2, the calling party number A, the called party number B, and the like, and reports the monitoring branch through the X2 link.
  • the message of the information CIN2 is sent to the LIG, as shown in (2) of FIG. 3, and the loop signaling of the loop is sent to the SS, and the intercept branch information CIN2 is carried in the invite signaling;
  • Step 4 The called party B rings, and the SCP updates the monitored ring information CIN1 and the monitored ring information CIN2 in the called ringing time information;
  • Step 5 The third party C call pickup B triggers the SCP.
  • the SCP first calls the interception processing module to generate the third party C's interception branch information CIN3, which includes the unique identifier CIN3, the pickup third party number C, the called party number B, etc.
  • the X2 link reports the Begin signaling of the interception branch information CIN3 to the LIG, as shown in (3) of FIG. 3; and then invokes the interception processing module to generate the monitoring branch information CIN4 of the B number, including the unique identifier CIN4, and the pickup third party number C.
  • the called party number B etc., reports the Begin signaling of the listening branch information CIN4 to the LIG through the X2 link, and sends the invite signaling of the pickup self-loop to the SS according to (4) in FIG. 3, in which the invoke signaling is performed.
  • Step 6 The SCP is triggered by the self-looping call.
  • the SCP sends the release signaling release of the listening branch CIN2 to the LIG through the X2 link, and releases the monitoring of the listening branch CIN2, as shown in (3) in FIG. 3; the SCP updates the listening branch separately.
  • the service information in the information CIN1, the monitoring branch information CIN3 and the monitoring branch information CIN4, the service type is call pickup, the calling party number is the calling party number A, the called party number B, the pickup number C, etc., through X2
  • the link reports these three listening branches
  • the service updates the Service Signal to the LIG, as shown in (6), (7), and (8) in FIG.
  • the SCP then updates the response information of the listening branch information CIN1, the listening branch information CIN3, and the listening branch information CIN4, and reports the response Answer signaling of the three listening branches to the LIG through the X2 link, as shown in (3) in FIG. , (10), (11);
  • Step 7 The calling user A hangs up, the SCP sends the bye signaling to the SS to release the A and C voice channels, and the SS sends the bye signaling to the LIG to end the voice channel monitoring; the SCP sends the monitoring branch information CIN1 to the LIG through the X2 link.
  • the present invention further provides a system for implementing call pickup service monitoring, which mainly includes:
  • SCP used to set the calling party and/or the called party to the number to be monitored; if the calling party is set to control, when the calling party calls the called party, the calling party generates the monitoring branch information and reports it to the calling party.
  • LIG when the third party makes a call pickup, releases the voice channel between the called party and the MSG, and connects the calling party to the third party's voice channel; if the called party is set to control, the called party calls the called party.
  • the first interception branch information of the called party is generated and reported to the LIG.
  • the second interception branch information of the called party is generated and reported to the LIG, and the voice channel between the called party and the MSG is released. Connect the calling party to the third party's voice path;
  • the LIG is configured to join the voice channel between the calling party and the MSG after receiving the information of the calling party to listen to the branch information, and join the voice channel between the called party and the MSG after receiving the first listening branch information of the called party. Listening; After receiving the second listening branch information of the called party, it joins the voice channel between the third party and the MSG to monitor, and ends the monitoring of the voice channel between the called party and the MSG.
  • the SCP is further configured to control the third party to be a number that needs to be monitored.
  • the third party monitors the branch information and reports the information to the LIG.
  • the SCP is further used when the calling party is controlled after receiving the ringing event of the called party.
  • the LIG is notified to update the called ringing time information in the calling party monitoring branch information, and when the called party is set to control, notify the LIG to update the called ringing time information in the first listening branch information of the called party.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Technology Law (AREA)
  • Telephonic Communication Services (AREA)
  • Monitoring And Testing Of Exchanges (AREA)

Abstract

L'invention porte sur un procédé et un système de mise en œuvre d'interception de service de prise d'appel, ledit procédé comprenant les étapes suivantes : un point de commande de service (SCP) configure une partie appelante et/ou une partie appelée en tant que numéro qui a besoin d'être intercepté ; lorsque la partie appelante appelle la partie appelée, si la partie appelante est configurée comme devant être contrôlée, le SCP génère les informations de branchement d'interception de la partie appelante et les rapporte à une passerelle d'interception légale (LIG), puis ajoute la LIG au trajet de parole entre la partie appelante et une passerelle de média (MGW) pour une interception, tandis que lorsque la partie appelée est configurée comme devant être contrôlée, le SCP génère les premières informations de branchement d'interception de la partie appelée et les rapporte à la LIG, puis ajoute la LIG au trajet de parole entre la partie appelée et la MGW pour une interception ; lorsqu'une troisième partie réalise une prise d'appel, si la partie appelée est configurée comme devant être contrôlée, le SCP génère les secondes informations de branchement d'interception de la partie appelée et les rapporte à la LIG, puis ajoute la LIG au trajet de parole entre la troisième partie et la MGW pour une interception, et termine l'interception sur le trajet de parole entre la partie appelée et la MGW. L'invention peut mettre en œuvre une fonction d'interception de manière plus complète.
PCT/CN2010/079886 2010-10-15 2010-12-16 Procédé et système de mise en oeuvre d'interception de service de prise d'appel Ceased WO2012048499A1 (fr)

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CN201010508170.2A CN102447791B (zh) 2010-10-15 2010-10-15 一种实现呼叫代答业务监听的方法与系统

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US20030023523A1 (en) * 2001-07-27 2003-01-30 Mckibben Bernerd R. Method for feature transfer in a telecommunication network
CN1509015A (zh) * 2002-12-16 2004-06-30 华为技术有限公司 实现分组语音网络监听的系统及方法
US20090232128A1 (en) * 2006-03-30 2009-09-17 Nokia Siemens Networks Gmbh & Co. Kg Method for Lawful Interception During Call Forwarding in a Packet-Oriented Telecommunication Network

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CN101170712B (zh) * 2007-11-27 2010-06-02 中兴通讯股份有限公司 一种实现智能网业务监听的方法及系统

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030023523A1 (en) * 2001-07-27 2003-01-30 Mckibben Bernerd R. Method for feature transfer in a telecommunication network
CN1509015A (zh) * 2002-12-16 2004-06-30 华为技术有限公司 实现分组语音网络监听的系统及方法
US20090232128A1 (en) * 2006-03-30 2009-09-17 Nokia Siemens Networks Gmbh & Co. Kg Method for Lawful Interception During Call Forwarding in a Packet-Oriented Telecommunication Network

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CN102447791A (zh) 2012-05-09

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