CN1700803A - Call state detecting method - Google Patents
Call state detecting method Download PDFInfo
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- CN1700803A CN1700803A CN 200410044314 CN200410044314A CN1700803A CN 1700803 A CN1700803 A CN 1700803A CN 200410044314 CN200410044314 CN 200410044314 CN 200410044314 A CN200410044314 A CN 200410044314A CN 1700803 A CN1700803 A CN 1700803A
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Abstract
This invention discloses one calling status testing method in communication filed, which comprises the following steps: a, MSC sends the status requirement information to its communication terminal or network element after activating the calling; b, the terminal or element responds the status providing information to MSC; c, MSC judges whether the calling is normal, if it is, then keeping calling and charging; if not, MSC discharges calling and terminates charging.
Description
Technical field
The present invention relates to the communications field, particularly the call meters technology.
Background technology
Mobile communication system is just by global system for mobile communications (Global System For MobileCommunication at present, abbreviation " GSM "), GPRS (General Packet RadioService, be called for short " GPRS ") to broadband CDMA system (WideBand Code DivisionMultiple Access is called for short " WCDMA ") transition.Above-mentioned any one system can be divided into three parts: subscriber equipment (User Equipment is called for short " UE "), access device and core network.Wherein UE is the equipment of user side, can be vehicle-mounted type, pocket or handheld equipment.Access device directly is connected with UE by wave point on the one hand, finishes the transmission and the management of wireless channel, is connected to core network on the other hand, finishes being connected of signal and core network.Core network is used to finish and call out connects, and various bearer services are provided, and realizes the function such as mutual of mobile network and other networks.
When above-mentioned various systems provide speech business, all can use a message accounting to carry out call meters usually.This message accounting is made up of charging collection point, charging center, settlement center usually.The time started and the termination time of user's communication is responsible for gathering in the charging collection point, and the counter data that startup charging counter and transmission are obtained is to corresponding charging center.Meanwhile, the charging collection point also will obtain the maximum duration of user's communication from the charging center, and talking state is monitored in real time, avoids the user to overdraw.The charging center goes out cost of the phone call according to rate and duration calculation, the remaining sum in the real-time update mobile phone card, and the roamer carried out roaming authentication.Then needing data with the original count device to send to settlement center for the roamer settles accounts.Because at third generation partnership project (Third Generation PartnershipProjects, be called for short " 3GPP ") middle regulation, the time that allows the user once to converse is several days or several week, and this just requires the user can not be interrupted by charging communication network in communication process.When using said method to charge,, will communicate by letter between charging collection point and charging center, thereby can produce Extra-long-conversation-time bills if network state is not good.Will there be two kinds of possibilities in this, a kind of may be that the user is just in extended telephone conversation, the collection point that causes chargeing owing to communicating by letter between charging collection point and charging center can't obtain the information of charging center in real time, thereby may cause the user to overdraw, the infringement benefits of operators; Another kind may be the user not in extended telephone conversation, when user side discharged conversation, network internal but stopped chargeing, and produces Extra-long-conversation-time bills, obviously this and do not meet user's interests.Therefore the Extra-long-conversation-time bills of this moment can not be as the foundation of charge.In order to address the above problem, the most frequently used method is to add a checking mechanism or force service disconnection mechanism, the Extra-long-conversation-time bills of avoiding the network element internal mistake to produce at network element internal at present.
In actual applications, there is following problem in such scheme: since at present Extra-long-conversation-time bills normally since between network element and the terminal and the communication failure between each network element cause, traditional internal check is machine-processed or force service disconnection mechanism just to be checked at network element internal, and can not be to checking between network element and the terminal and between each network element.
Cause the main cause of this situation to be, not between network element and the terminal and the connection state between each network element checking mechanism is provided.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of call state detection method, makes between network element and terminal or communicates by letter between each network element when breaking down, and avoids producing unnecessary ultra-long time ticket.
For achieving the above object, the invention provides a kind of call state detection method, comprise following steps:
A is after call out activating the scheduled time, and mobile switching centre is by to terminal that communicates with or network element transmit status inquiry request message query State information;
Described terminal of B or network element are by providing state information to described mobile switching centre feedback states query response message;
The described mobile switching centre of C judges according to described state information whether described calling is normal, if then continue to call out and charge, otherwise mobile switching centre's call release stops chargeing.
Wherein, in described steps A, the described scheduled time is 30 minutes.
In step C,, when stopping chargeing, also comprise following steps when described mobile switching centre call release:
Described mobile switching centre indicates the termination of described charging to be caused by the network call release.
In described steps A, mobile switching centre is by the status poll process, to subscriber equipment transmit status inquiry request message, the call state of inquiring user equipment;
In described step B, described subscriber equipment feeds back call state by the status poll response message to described mobile switching centre;
In described step C, described mobile switching centre is according to described call state, and whether the calling of judging mobile switching centre and subscriber equipment is connected normal, if then continue to call out and charge, otherwise mobile switching centre's call release stops chargeing.
Described step B also comprises following steps: mobile switching centre carries out timing to subscriber equipment feedback call state, when overtime not feedback, then mobile switching centre is once more to subscriber equipment transmit status inquiry request message, and described subscriber equipment is fed back call state carry out timing, when overtime not feedback, then call release stops chargeing.
In described step C, when described call state was state of activation or mobile origin modification state or Mobile Termination modification state, mobile switching centre judged that calling normally.
In described steps A, mobile switching centre is by the circuit state query script, to the transtation mission circuit status query request message of playing a game, enquiry circuit virtual condition;
In described step B, described playing a game by the circuit state query response message fed back described circuit virtual condition to described mobile switching centre;
In described step C, described mobile switching centre judges whether described circuit virtual condition is idle, if then call release stops chargeing, otherwise continues to call out and charge.
Described method also comprises following steps: overtime when described circuit state query script, then call release stops chargeing.
In described steps A, the mobile switching centre that makes a start sends any time inquiry request message by any time query requests process to called subscriber place attaching position register, inquires about described called subscriber's call state;
In described step B, described attaching position register sends to called subscriber place VLR Visitor Location Register the customer position information request message is provided, described VLR Visitor Location Register is by providing the call state of customer position information response message to described attaching position register feedback called subscriber, and by described attaching position register by any time query response message, feed back described call state to the described mobile switching centre that makes a start;
In the step C of institute, the described mobile switching centre that makes a start judges whether described call state is conversation, if then continue to call out and charge, otherwise call release stops chargeing.
In described method,, then return steps A when the overtime or failure of described any time query requests process.
By relatively finding, technical scheme difference with the prior art of the present invention is, adopt MSC come between network element and the user terminal and the connection status between network element and the network element check, effectively reduced because between network element and the user terminal or be connected fault between each network element and cause producing the phenomenon of long-distance call list.
Difference on this technical scheme, brought comparatively significantly beneficial effect, promptly by using MSC that being connected between network element and the user terminal and between network element and the network element checked, operator needn't lose the part telephone expenses of giving up owing to Extra-long-conversation-time bills is unreliable again, and the user can be owing to the air time is interrupted by force than length yet.Therefore can effectively improve service quality, avoid producing unnecessary long-distance call list.
Description of drawings
Fig. 1 transmits schematic diagram according to the message of the call state detection method of the first embodiment of the present invention;
Fig. 2 is that the message of call state detection method is according to a second embodiment of the present invention transmitted schematic diagram;
Fig. 3 is that the message of the call state detection method of a third embodiment in accordance with the invention is transmitted schematic diagram;
Fig. 4 is that the message of the call state detection method of a fourth embodiment in accordance with the invention is transmitted schematic diagram;
Fig. 5 is that the message of call state detection method is according to a fifth embodiment of the invention transmitted schematic diagram;
Fig. 6 is that the message of call state detection method is according to a sixth embodiment of the invention transmitted schematic diagram.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing.
According to principle of the present invention, avoid owing between each network element or the wrong long-distance call list that produces of network element and communication between terminals fault, need use in communication process that mobile switching centre (MobileSwitch Center, be called for short " MSC ") makes regular check between each network element, between network element and the terminal or the consistency of circuit state.Can use the status poll process between MSC and the user terminal to check for the fault between network element and the terminal; Can use GMSC (gateway mobile switching center) (Gateway Mobile Switch Center for the fault between each network element, be called for short " GMSC ") and attaching position register (HomeLocation Register, abbreviation " HLR ") between the ATI process check; Can use the circuit query messages between MSC and the mobile switching centre/this locality exchange (Mobile SwitchCenter/Local Exchange is called for short " MSC/LE ") to check for the consistency of circuit state.After calling is activated to certain hour, just initiate query manipulation by MSC, the fixing calling of interoffice mobile calls, interoffice or the circuit state of terminal are checked.In addition,, also initiate query manipulation, obtain state consistency if find relevantly with state when unusual.When being checked through when unusual, carry out call release, stop to charge, and indication is chargeed, and to stop be because the release that network is initiated.
Fig. 1 illustrates according to the message of the call state detection method of the first embodiment of the present invention and transmits situation, in the present embodiment, inquires about in the calling terminal user mode and to check connection status between MSC and the user terminal, is mainly finished by calling UE 10, the MSC11 that makes a start.
Wherein, calling UE 10 is subscriber equipmenies of calling party.Those skilled in the art should be understood that UE can be mobile phone, terminal equipment such as vehicle-mounted.
The MSC 11 that makes a start is in order to the UE in its overlay area is controlled and finishes the functional entity of speech channel exchange.Can realize between the mobile subscriber by it, being connected between mobile subscriber and the fixed-line subscriber, and can provide mobile network and other public networks (as public switched telephone network (Public SwitchedTelephone Network, be called for short " PSTN "), integrated services digital network (Integrated Service DigitalNetwork is called for short " ISDN ")) interface between.The people who is familiar with this area will be appreciated that, concrete function according to MSC, it can be divided into common mobile switching centre, (the TransitMobile Switch Center of tandem mobile switching centre, be called for short " TMSC ") and gateway MSC (Gateway MobileSwitch Center is called for short " GMSC ") etc.
According to principle of the present invention, specifically describe the status poll process of the calling UE 10 and the MSC11 that makes a start below.
As shown in Figure 1, activate one period scheduled time in conversation, for example after 30 minutes, at first by the MSC11 that makes a start to calling UE 10 transmit status inquiry request messages 100, the call situation of inquiring calling UE10.Calling UE 10 is according to virtual condition, to the MSC11 feedback states query response message 101 of making a start.
If the status poll response message that calling UE 10 is returned 101 is for state of activation or move origin modification (Mobile Originating Modify) state or Mobile Termination modification (Mobile TerminatingModify) state, the MSC that then makes a start judges that being connected to of make a start MSC 11 and calling UE 10 is normal, and the calling and the continuation of chargeing are carried out.If the status poll response message that calling UE 10 is returned 101 is other states, it is inconsistent with call state that the MSC11 that then makes a start thinks, so call release, chargeing stops.
Correct in order to guarantee query script, need to add a timer, avoid waiting for the status poll response message 101 of calling UE 10 always.If during timing, do not obtain the status poll response message 101 of calling UE 10, then think overtime, restart the status poll process by the MSC11 that makes a start.Carry out and the identical processing of query script for the first time for status poll second time process.If still overtime, think that then the calling UE 10 and the MSC 11 that makes a start are out of touch, stop chargeing.
This process can effectively be handled when The Calling Party Hooks On, the situation that the network side respective resources does not discharge.Implementing to be the status poll processing procedure of called end according to of the present invention second, similar to calling terminal, the message of its executing state query processing is transmitted schematic diagram as shown in Figure 2.At first by receiving end MSC20 to called UE 21 transmit status inquiry request messages 200, the inquiry called UE 21 the conversation situation.If the status poll response message that called UE 21 is returned 201 is for state of activation or move origin modification state or Mobile Termination is revised state, then receiving end MSC20 thinks that being connected to of it and called UE 21 is normal, calls out and charges and continue to carry out.On the contrary, if the status poll response message that called UE 21 is returned 201 is other states, then think inconsistent with call state, this moment, receiving end MSC20 initiated dispose procedure, and chargeing stops.In addition, correct in order to guarantee query script in the present embodiment, also add a timer, avoid waiting for the status poll response message 201 of called UE 21 always.If during timing, do not obtain the status poll response message 201 of called UE 21, then think overtime, restart the status poll process by receiving end MSC20, if still overtime, think that then called UE 21 and receiving end MSC20 are out of touch, stop chargeing.In the call state detection method of a third embodiment in accordance with the invention, whether normal in order to check MSC with being connected of Mobile terminating call, can use any time query requests (AnyTime Interrogation is called for short " ATI ") message to inquire about.Use ATI message to check that the message of connection status between each network element transmits schematic diagram as shown in Figure 3 at calling terminal.Mainly by the GMSC30 that makes a start, receiving end HLR31, receiving end VLR Visitor Location Register (Visitor Location Register is called for short " VLR ") 32 is finished.
The GMSC30 that wherein makes a start is mainly used in the connection of handling two different network elements.Be connected mobile network and being connected of isdn network etc. as mobile network and PSTN network.
Receiving end HLR31 is a database, is used for all data of store home user, comprises user's information data such as access checking, roaming capacity, supplementary service.In addition, receiving end HLR31 also provides the actual multidate information of roaming the MSC area at place about UE for MSC.
Receiving end VLR32 is the whole database for information about of mobile subscriber that a storage enters its area of coverage, is dynamic customer data base, need carry out the mass data exchange with receiving end HLR31.
If the called subscriber enters another VLR district, must delete in the data of this VLR area stored so.
Specifically describe below and use ATI to check the process of each net element connection state in the present embodiment.
As shown in Figure 3, at first after activating a period of time, judge whether the called subscriber is the mobile subscriber and judge that whether its residing position is at this intra-office by the GMSC30 that makes a start.If called is mobile subscriber and not at this intra-office, then starts the ATI process, and send ATI request message 300 to receiving end HLR31 by the GMSC30 that makes a start.Certainly if also can use ATI to check at this intra-office, but processing procedure is similar to status poll, does not advocate in actual the use.
After receiving end HLR31 received this ATI request message (any time inquiry request message) 300, sending according to called subscriber's position provided customer position information request message 301 to receiving end VLR32.
Receiving end VLR32 will provide customer position information response message 302 to return to receiving end HLR31 according to the current state of called subscriber's storage.Those of ordinary skill in the art should be understood that the message that this provides customer position information response message 302 reflection called subscriber talking states, and indicating the called subscriber current is idle condition or talking state.
The customer position information response message 302 that provides that receiving end HLR31 will receive is packaged in the ATI response message (any time query response message) 303, and it is returned to the GMSC30 that makes a start.The GMSC30 that makes a start obtains called subscribers' current state according to ATI response message 303, if the called subscriber be an idle condition, then stops charging; If the called subscriber is a talking state, then continue conversation and charging.
When preventing between each network element communication failure, the GMSC30 that makes a start waits for ATI response message 303 always, therefore needs a timing device.If during timing, do not receive ATI response message 303, then think overtime, initiate ATI request for the second time again by the GMSC30 that makes a start.The ATI processing of request is to for the first time similar for the second time.If ATI request for the second time is still overtime, think that then communication is broken down between network element, stop call and charge.
Above efficient in operation assurance the correctness of caller ticket about called aspect.In the call state detection method of a fourth embodiment in accordance with the invention, adopt ATI to ask to guarantee the correctness of called ticket about the caller aspect.As shown in Figure 4, use the ATI request to check that the processing that connects between each network element is similar to the processing of calling terminal for called end, at first after activating a period of time, judge whether the calling subscriber is the mobile subscriber and judge that whether its residing position is at this intra-office by receiving end GMSC40.If called is mobile subscriber and not at this intra-office, then starts the ATI process, and send ATI request message (any time inquiry request message) 400 to the HLR41 that makes a start by receiving end GMSC40.After the HLR41 that makes a start received this ATI request message 400, sending according to calling subscriber's position provided customer position information request message 401 to the VLR42 that makes a start.The current state that the VLR42 that makes a start stores according to the calling subscriber, to provide customer position information response message 402 to return to the HLR41 that makes a start, this provides the message of customer position information response message 402 reflection calling subscriber talking states, and indicating the calling subscriber current is idle condition or talking state.After this, the customer position information response message 402 that provides that the HLR41 that makes a start will receive is packaged in the ATI response message (any time inquiry request message) 403, and it is returned to receiving end GMSC40.Receiving end GMSC40, then stops to charge if the calling subscriber is an idle condition according to ATI response message 403 acquisition calling subscribers' current state; If the calling subscriber is a talking state, then continue conversation and charging.
According to the message transmission of the detection method of the call state of fifth embodiment of the invention as shown in Figure 5, in the present embodiment, calling terminal uses the circuit query messages to check circuit connection state between MSC and the MSC/LE.As shown in Figure 5, this process mainly by make a start/exchange 50 of tandem/Gateway MSC/this locality and receiving end/tandem/Gateway MSC/this locality exchange 51 and finish.
So long as station to station call, no matter be MSC, TMSC, GMSC or fixing exchange, if interoffice signaling adopts ISUP (Integrated Service Digital Network UserPart, be called for short " ISUP ") carry, just can use the circuit query messages to check caller and called circuit connection state.
As shown in Figure 5, activate a period of time, for example after 30 minutes, by making a start/tandem/Gateway MSC/this locality exchange 50 start-up circuit status poll processes, to receiving end/tandem/Gateway MSC/this locality exchange 51 transtation mission circuit status query request message 501 in conversation.
The state of receiving end/tandem/Gateway MSC/this locality exchange 51 bases itself is to making a start/tandem/Gateway MSC/this locality exchange 50 transtation mission circuit status poll response messages 502.
Make a start/tandem/Gateway MSC/this locality exchange 50 contents, judge whether to stop chargeing according to circuit state query response message 502.Specifically, the ifs circuit state is idle, and then call release stops chargeing; If not, then continue to call out and charge.
Be provided with a timer in the present embodiment by circuit state query response message 502 in order to ensure not waiting for infinitely the time.If during timing, do not receive circuit status query response message 502, then think overtimely, can restart the circuit state query script by receiving end/tandem/Gateway MSC/this locality exchange 51.The process of inquiry is with for the first time identical for the second time.If for the second time also overtime, think that then circuit disconnects, stop to charge.
This process is applicable to the caller ticket, and called ticket goes out the gateway exchange ticket, goes into the gateway exchange ticket, the tickets relevant with calling and circuit such as switching ticket.The message transmission of call state detection method according to a sixth embodiment of the invention as shown in Figure 6, in this embodiment, circuit query processing process for called end is similar to the processing of calling terminal, activate a period of time in conversation, for example after 30 minutes, by receiving end/tandem/Gateway MSC/this locality exchange 61 start-up circuit status poll processes, to making a start/tandem/Gateway MSC/this locality exchange 60 transtation mission circuit status query request message 601.Make a start/tandem/Gateway MSC/this locality exchanges 60 states according to itself and exchanges 61 transtation mission circuit status poll response messages 602 to receiving end/tandem/Gateway MSC/this locality.Receiving end/tandem/Gateway MSC/this locality exchange 61 contents according to circuit state query response message 602 judges whether to stop chargeing, and the ifs circuit state is idle, and then call release stops chargeing; If not, then continue to call out and charge.On the other hand, as mentioned above, in order to ensure not waiting for circuit state query response message 602 infinitely the time, be provided with a timer in the present embodiment,, then think overtime if during timing, do not receive circuit status query response message 602, can by make a start/tandem/Gateway MSC/this locality exchange 60 restarts the circuit state query script, if for the second time also overtime, think that then circuit disconnects, stop to charge.
Though by reference some preferred embodiment of the present invention, the present invention is illustrated and describes, but those of ordinary skill in the art should be understood that, can do various changes to it in the form and details, and the spirit and scope of the present invention that do not depart from appended claims and limited.
Claims (10)
1. a call state detection method is characterized in that, comprises following steps:
A is after call out activating the scheduled time, and mobile switching centre is by to terminal that communicates with or network element transmit status inquiry request message query State information;
Described terminal of B or network element are by providing state information to described mobile switching centre feedback states query response message;
The described mobile switching centre of C judges according to described state information whether described calling is normal, if then continue to call out and charge, otherwise mobile switching centre's call release stops chargeing.
2. call state detection method according to claim 1 is characterized in that, in described steps A, the described scheduled time is 30 minutes.
3. call state detection method according to claim 1 is characterized in that, in step C, when described mobile switching centre call release, when stopping chargeing, also comprises following steps:
Described mobile switching centre indicates the termination of described charging to be caused by the network call release.
4. according to any described call state detection method of claim 1 to 3, it is characterized in that in described steps A, mobile switching centre is by the status poll process, to subscriber equipment transmit status inquiry request message, the call state of inquiring user equipment;
In described step B, described subscriber equipment feeds back call state by the status poll response message to described mobile switching centre;
In described step C, described mobile switching centre is according to described call state, and whether the calling of judging mobile switching centre and subscriber equipment is connected normal, if then continue to call out and charge, otherwise mobile switching centre's call release stops chargeing.
5. call state detection method according to claim 4, it is characterized in that, described step B also comprises following steps: mobile switching centre carries out timing to subscriber equipment feedback call state, when overtime not feedback, then mobile switching centre is once more to described subscriber equipment transmit status inquiry request message, and described subscriber equipment feedback call state is carried out timing, when overtime feedback, then call release stops chargeing.
6. call state detection method according to claim 4 is characterized in that, in described step C, when described call state was state of activation or mobile origin modification state or Mobile Termination modification state, mobile switching centre judged that calling normally.
7. according to any described call state detection method of claim 1 to 3, it is characterized in that in described steps A, mobile switching centre is by the circuit state query script, to the transtation mission circuit status query request message of playing a game, enquiry circuit virtual condition;
In described step B, described playing a game by the circuit state query response message fed back described circuit virtual condition to described mobile switching centre;
In described step C, described mobile switching centre judges whether described circuit virtual condition is idle, if then call release stops chargeing, otherwise continues to call out and charge.
8. call state detection method according to claim 7 is characterized in that, described method also comprises following steps: overtime when described circuit state query script, then mobile switching centre's call release stops chargeing.
9. according to any described call state detection method of claim 1 to 3, it is characterized in that, in described steps A, make a start mobile switching centre by any time query requests process, send any time inquiry request message to called subscriber place attaching position register, inquire about described called subscriber's call state;
In described step B, described attaching position register sends to called subscriber place VLR Visitor Location Register the customer position information request message is provided, described VLR Visitor Location Register is by providing the call state of customer position information response message to described attaching position register feedback called subscriber, and by described attaching position register by any time query response message, feed back described call state to the described mobile switching centre that makes a start;
In the step C of institute, the described mobile switching centre that makes a start judges whether described call state is conversation, if then continue to call out and charge, otherwise call release stops chargeing.
10. call state detection method according to claim 9 is characterized in that, in described method, when the overtime or failure of described any time query requests process, then returns steps A.
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| CNB2004100443148A CN100417276C (en) | 2004-05-21 | 2004-05-21 | Call state detecting method |
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| CNB2004100443148A CN100417276C (en) | 2004-05-21 | 2004-05-21 | Call state detecting method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101198090B (en) * | 2007-12-28 | 2011-06-22 | 中国移动通信集团四川有限公司 | Multimedia bell information fee checking method |
| CN102362514A (en) * | 2009-03-24 | 2012-02-22 | 株式会社泛泰 | Femtocell access node, femtocell system, and data transmission method for the system |
| CN102439906A (en) * | 2011-10-27 | 2012-05-02 | 华为技术有限公司 | Exception handling method and server in calling continuous process |
| CN103490935A (en) * | 2013-09-30 | 2014-01-01 | 华为技术有限公司 | User conversation monitoring method and device |
| CN104917886A (en) * | 2015-04-30 | 2015-09-16 | 努比亚技术有限公司 | Method and apparatus for obtaining scene before conversation by mobile terminal |
| CN105992159A (en) * | 2015-02-27 | 2016-10-05 | 北京信威通信技术股份有限公司 | Method and system for realization of roaming user call state subscription |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101997850B (en) * | 2009-08-12 | 2014-04-09 | 中兴通讯股份有限公司 | Call management method and device for IP (Internet Protocol) multimedia subsystem |
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| US5422939A (en) * | 1993-08-05 | 1995-06-06 | Schlumberger Industries, Inc. | Parallel off-hook detection for both line-available and phone pick-up detection |
| CN1167231C (en) * | 2001-04-06 | 2004-09-15 | 华为技术有限公司 | Method and system for inquiring position and state information of node in intelligent network |
| CN1184789C (en) * | 2001-09-06 | 2005-01-12 | 华为技术有限公司 | Method for avoidance of anomaly superlong communication of mobile users |
| CN1317854C (en) * | 2002-04-20 | 2007-05-23 | 中兴通讯股份有限公司 | Method for detecting medium gateway controller and medium between-gateways link state |
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- 2004-05-21 CN CNB2004100443148A patent/CN100417276C/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101198090B (en) * | 2007-12-28 | 2011-06-22 | 中国移动通信集团四川有限公司 | Multimedia bell information fee checking method |
| CN102362514A (en) * | 2009-03-24 | 2012-02-22 | 株式会社泛泰 | Femtocell access node, femtocell system, and data transmission method for the system |
| CN102439906A (en) * | 2011-10-27 | 2012-05-02 | 华为技术有限公司 | Exception handling method and server in calling continuous process |
| WO2012163021A1 (en) * | 2011-10-27 | 2012-12-06 | 华为技术有限公司 | Method and server for exception handling during call connection |
| CN103490935A (en) * | 2013-09-30 | 2014-01-01 | 华为技术有限公司 | User conversation monitoring method and device |
| CN103490935B (en) * | 2013-09-30 | 2017-04-12 | 华为技术有限公司 | User conversation monitoring method and device |
| CN105992159A (en) * | 2015-02-27 | 2016-10-05 | 北京信威通信技术股份有限公司 | Method and system for realization of roaming user call state subscription |
| CN105992159B (en) * | 2015-02-27 | 2019-04-05 | 北京信威通信技术股份有限公司 | Realize the method and system that roaming service customer's call state is subscribed to |
| CN104917886A (en) * | 2015-04-30 | 2015-09-16 | 努比亚技术有限公司 | Method and apparatus for obtaining scene before conversation by mobile terminal |
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| Publication number | Publication date |
|---|---|
| CN100417276C (en) | 2008-09-03 |
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