CN100486274C - Method of realizing multiside calling business in flexible exchange system - Google Patents
Method of realizing multiside calling business in flexible exchange system Download PDFInfo
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- CN100486274C CN100486274C CNB021377871A CN02137787A CN100486274C CN 100486274 C CN100486274 C CN 100486274C CN B021377871 A CNB021377871 A CN B021377871A CN 02137787 A CN02137787 A CN 02137787A CN 100486274 C CN100486274 C CN 100486274C
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Abstract
The method includes following steps. A service treatment layer for calling between multi parties is added inside calling server. An internal message interface is defined between basic calling module and multi parties calling service treatment layer. Calling server starts up logic control of multi parties calling service. Multi parties calling service is carried out in service treatment layer. According to calling control instructions made by calling service treatment layer based on specific service logic, calling treatment module modifies each basic calling state, changes each basic calling and their communication connection relationship. Under condition of unchanging model of treating basic calling in original system, separative control for multi parties calling service is realized inside calling server. The invention defines simple, reliable treating model and message interface for software to implement as well as to modify original system lesser.
Description
Technical field
The present invention relates to the communication technology, be specifically related to implementation method to the telecommunication call business of a plurality of users' participations, more particularly, relate to a kind of method that in based on the call server (Call Server) of soft switch (Softswitch) technology, realizes the professional control of Multi-Way Calling.
Background technology
When the telecommunication call business relates to plural multi-party users (as telecommunication services such as Call Forwarding, Call Waiting, Conference Callings), its call state and connection control will more complicated.In the call control system of traditional circuit-switched network, because call treatment and service logic control concentrate in together, when in system, introducing these Multi-Way Calling business functions, need make bigger modification to existing basic call Control Software, not only realize difficulty, and introduce mistake easily.
After intelligent network technology occurs, introduced the notion of basic call transaction module, Multi-Way Calling is resolved into relatively independent basic two party call to be handled, service logic control is handled with basic call and is separated, realize the basic call processing capacity at Service Switching Point, and the business of Multi-Way Calling control is transferred to Service Control Point and is handled, and does not need to revise the call processing software among the SSP when increasing new business function.But must configuration SCP network entity in this specification requirement system, and the interworking protocol between SSP and SCP be very complicated, is difficult to realize.
The thought that Softswitch technology has adopted similar professional control and basic call to be separated, professional realization needs SCP or independent like this network entity and the certain protocol of application server (Application Server) equally.
Summary of the invention
The technical problem to be solved in the present invention is, following professional control under the principle prerequisite that is separated with the basic call processing, overcome the professional limitation that needs to rely on Service Control Point or application server network entities such as (Application Server) of controlling in the prior art, and the agreement of avoiding in the prior art complexity that between call server and SCP or application server, must adopt, provide a kind of simple method in the inner control that realizes the Multi-Way Calling business of call server.
Technical scheme provided by the invention is, the implementation method that is provided is to follow service logic control to handle the thought that is separated with basic call, on the basis that does not change the basic call transaction module, inside at call server increases a Multi-Way Calling Business treatment, from the position that system level is divided, the Multi-Way Calling Business treatment is positioned at the upper strata of basic call transaction module.When the Multi-Way Calling business is triggered, service logic control will be transferred in the Multi-Way Calling Business treatment and carry out, and the basic call processing layer is responsible for reporting such as user's incoming events such as off-hook, on-hook, hooking, dialing to the Multi-Way Calling Business treatment, and revises each basic call state, changes each basic call and the relation that communicates to connect each other according to the calling control command that the Multi-Way Calling Business treatment is made according to the specific transactions logic.The control of Multi-Way Calling business will be followed the principle at " single-ended control point ", be subscriber-related a plurality of basic call transaction modules that this business of activation was only controlled and registered to the Multi-Way Calling Business treatment, and do not control other users' that participate in calling basic call transaction module.
In above-mentioned implementation method, the triggering of described Multi-Way Calling business is in the following way: certain " test point " is set in the basic call transaction module, when the test point condition satisfies, thereby start corresponding Multi-Way Calling service logic control to the report of Multi-Way Calling Business treatment by the defined professional message that triggers.In the basic call transaction module, can set up a plurality of test points simultaneously, when the test point condition of multinomial business satisfies simultaneously, carry out which kind of Multi-Way Calling business according to the priority orders decision of business by the Multi-Way Calling Business treatment.
In above-mentioned implementation method, in order to realize the logic control function of Multi-Way Calling business better, can define a simple and practical Multi-Way Calling transaction module in the Multi-Way Calling Business treatment, this model is made of event handling under a series of multiparty service state justice, each service condition and the mutual transformational relation between each state.Except some public service conditions, service condition generally defines at specific business, that is to say, different business has different state sets.Transformational relation between event handling under each state and each state is by specific service logic decision.When needs increase new business function, only need expand and increase corresponding the processing and get final product original service condition definition, do not influence the processing of original service condition.When existing service logic is made amendment, also very little to the influence of whole system.
In above-mentioned implementation method, definition has the inside story interface between basic call transaction module and Multi-Way Calling Business treatment, this message interface is actually a simple call control protocol, and it has defined the basic call transaction module and the Multi-Way Calling Business treatment should how mutual to finish specific business function.When professional trigger detection point condition satisfies, the user who perhaps participates in Multi-Way Calling carries out off-hook, on-hook, hooking, actions such as dialing, when perhaps causing that owing to a variety of causes the basic call state changes, the basic call transaction module is reported to the Multi-Way Calling Business treatment by the related news of the definition in this message interface, equally, when requiring needs that service-user is carried out (as putting warning tone alternately according to service logic, collect the digits), change the basic call state and communicate to connect when concerning, the Multi-Way Calling Business treatment also sends these instructions by the related news in this interface to the basic call transaction module.Owing to this message interface is not to define at specific business, but considered the requirement of all Multi-Way Calling business, when the new business function of exploitation, do not needed or only use this message interface is done very little change.
Utilize the Multi-Way Calling service implementation method in the soft switchcall server provided by the invention, under the prerequisite that does not change the original basic call transaction module of system, can control in the inner Multi-Way Calling business of separating that realizes of call server.Compared with prior art, this method need not dispose extra SCP or application server entity in system, has avoided adopting in system the complicated service control protocol simultaneously.Multi-Way Calling transaction module that defines in this method and inside story interface is simple, reliable, flexibly, be convenient to software and realize, make that simultaneously to increase new business function quick more and reduced the change that system is brought, make system more reliable.
Description of drawings
Fig. 1 is the software architecture diagram that the present invention realizes the soft switchcall server call server of Multi-Way Calling Business treatment in the Multi-Way Calling operational approach;
Fig. 2 is that Multi-Way Calling service implementation method provided by the present invention is applied in the exemplary embodiments flow chart in the call waiting;
Fig. 3 is basic call transaction module and the message flow chart of Multi-Way Calling Business treatment when carrying out call waiting in the implementation method of the present invention.
Embodiment
As shown in Figure 1, the present invention increases a Multi-Way Calling Business treatment in the inside at call server, this Multi-Way Calling Business treatment is positioned at the upper strata of basic call transaction module, and definition is used to the inside story interface of the information that transmits between basic call transaction module and Multi-Way Calling Business treatment; To Multi-Way Calling Business treatment report Multi-Way Calling information, call server starts corresponding Multi-Way Calling service logic control by the defined professional message that triggers; When the Multi-Way Calling business was triggered, the service logic control in the call server was transferred to and is carried out the Multi-Way Calling business in the Multi-Way Calling Business treatment; The calling control command that the basic call transaction module is made according to the specific transactions logic according to the Multi-Way Calling Business treatment is revised each basic call state, is changed each basic call and the relation that communicates to connect each other, realizes Multi-Way Calling control.
Defined Multi-Way Calling service condition and transformational relation each other thereof when Fig. 2 has provided Multi-Way Calling Business Processing model provided by the present invention and is applied to call waiting.For call waiting, except public initial " NULL " state, also defined three states such as " CW_WAITING ", " CW_HOLD ", " CW_COLLECT_INFO ", the implication of these states is as follows:
CW_WAITING: when the party A-subscriber and the another one user B that register and activated call waiting converse, at this moment third party user C calls out the party A-subscriber, because call waiting test point condition satisfies, therefore call waiting is triggered, the multiparty service transaction module is moved to " CW_WAITING " state, this moment, user A and B still conversed, and user C listens ring-back tone also etc. to be accessed;
CW_COLLECT_INFO: if user A hooking, the multiparty service transaction module will be moved to the dialing input of this state awaits user A;
CW_HOLD: under this state, converse for one among user A and user B or the user C, and the another one user is placed in " maintenance " state;
Arrow among Fig. 2 between each state has shown possible transformational relation between each service condition, and the inside story famous-brand clock on arrow limit is understood the incident that triggers state transition.
When call waiting test point condition satisfied, the basic call transaction module was triggered to Multi-Way Calling business report Multi-Way Calling business by Init_Mpc message, and this is a call waiting by the parameter indicating in the message.Receive professional trigger message Init_Mpc after, the Multi-Way Calling model will be moved to the CW_WAITING state, and under this state latency services user's input information;
Service-user A receive new go into call prompt after, can and dial " 2 " and insert this new calling by hooking, behind user A hooking, the basic call transaction module will be reported this incident to the Multi-Way Calling Business treatment by Flash_Ind message, and the Multi-Way Calling model is then responsively moved to the further dialing input that the CW_COLLECT_INFO state is waited for the user;
After the user dials " 2 ", the basic call transaction module is sent to the Multi-Way Calling Business treatment by Info_Ind message with subscriber dialing information, after judging that according to service logic user A wishes to insert new calling, the Multi-Way Calling Business treatment will indicate the basic call transaction module with the party A-subscriber and C user continues and former party B-subscriber is placed " maintenance " state, correspondingly move to the CW_HOLD state then;
When the basic call of A and B or C for a certain reason is released, basic call will be by Call_Rel message informing Multi-Way Calling Business treatment, and the Multi-Way Calling business will stop and turn back to the NULL state this moment.
When Fig. 3 shows Multi-Way Calling service implementation method provided by the present invention and is applied to call waiting, the message interaction process between basic call transaction module (BCM) and Multi-Way Calling Business treatment (MCM).
Suppose service-user A registration and activated call waiting, user A and user B converse, and trigger call waiting thereby user C this moment dials user A.In call waiting, comprise two basic call transaction modules, wherein the basic call transaction module of user A and user B is represented with BCM 1, the basic call transaction module of user A and user C is represented with BCM 2, these two basic call transaction modules are independent toward each other, and MCM links together by the Multi-Way Calling Business treatment.
As shown in Figure 3, a typical call waiting flow process may further comprise the steps:
A) during user C calling party A, a new basic call BCM 2 is created, simultaneously owing to user A just converses with B this moment, BCM 2 detects the call waiting trigger condition to be satisfied, report to MCM with Init_Mpc message, simultaneously the needed user profile of Business Processing, basic call information etc. are sent to MCM as message parameter;
B) MCM sends the professional acknowledgement message Init_Mpc_Ack that triggers to BCM 2;
C) MCM by Play_Tone message indication BCM 1 to sending the Call Waiting prompt tone with the user A of party B-subscriber's conversation;
D) user A hooking, BCM 1 reports this incident by Flash_Ind message to MCM;
E) MCM send dialing tone and prepares to user A by Collect_Info message indication BCM 1 and collects the digits;
F) user A dials " 2 ", and BCM 1 transmits subscriber dialing information by Info_Ind message to MCM;
G) according to service logic, MCM sends Hold_Call message to BCM 1 and indicates it to place hold mode to end subscriber B;
H) MCM sends the Connect_Call message to BCM 2 and indicates it that user A is communicated with user C to be connected then;
I) user A on-hook, the basic call of user A and user C is released, and BCM 2 reports user's onhook event by Call_Rel message to MCM;
J) MCM sends Drop_Call message to BCM 1, so the basic call of user A and user B also is released.
More than describe the execution mode of the inventive method in detail, and for the concrete application of call waiting, but this should not be considered and limit the scope of the present invention, and the inventive method can also be applied in the multiple Multi-Way Calling business such as Call Forwarding, third-party call, calling switching, Conference Calling.
Claims (5)
1, a kind of method that realizes the Multi-Way Calling business in soft switchcall server is characterized in that, comprises the steps:
A) increase a Multi-Way Calling Business treatment in the inside of call server, this Multi-Way Calling Business treatment is positioned at the upper strata of basic call transaction module, and definition is used to the inside story interface of the information that transmits between described basic call transaction module and Multi-Way Calling Business treatment;
B) report Multi-Way Calling information by the defined professional message that triggers to the Multi-Way Calling Business treatment, call server starts corresponding Multi-Way Calling service logic control;
C) when the Multi-Way Calling business is triggered, the service logic control in the call server is transferred in the described Multi-Way Calling Business treatment and is carried out the Multi-Way Calling business;
D) the calling control command made according to the specific transactions logic according to the Multi-Way Calling Business treatment of described basic call transaction module is revised each basic call state, is changed each basic call and the relation that communicates to connect each other, realizes Multi-Way Calling control.
2, according to the described method that in soft switchcall server, realizes the Multi-Way Calling business of claim 1, it is characterized in that, described step B) also comprises the steps: in the basic call transaction module, to be arranged on and set up a plurality of test points in the basic call transaction module simultaneously, when the test point condition satisfies, start corresponding Multi-Way Calling service logic control, when the test point condition of multinomial business satisfied simultaneously, described Multi-Way Calling Business treatment was carried out the kind of Multi-Way Calling business according to the priority orders decision of business.
3, according to the described method that in soft switchcall server, realizes the Multi-Way Calling business of claim 1, it is characterized in that described Multi-Way Calling information comprises off-hook, on-hook, hooking, dial user's incoming event.
4, according to the described method that in soft switchcall server, realizes the Multi-Way Calling business of claim 1, it is characterized in that, described step C) the service logic control in is a kind of single-ended control, be subscriber-related a plurality of basic call transaction modules that this business of activation was only controlled and registered to the Multi-Way Calling Business treatment, and do not control other users' that participate in calling basic call transaction module.
5, according to the described method that in soft switchcall server, realizes the Multi-Way Calling business of claim 1, it is characterized in that, in described steps A) in comprise the steps: that also described model is made of event handling under the definition of multiparty service state, each service condition and the mutual transformational relation between each state at Multi-Way Calling transaction module of described Multi-Way Calling Business treatment definition.
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| CNB021377871A CN100486274C (en) | 2002-10-28 | 2002-10-28 | Method of realizing multiside calling business in flexible exchange system |
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| CNB021377871A CN100486274C (en) | 2002-10-28 | 2002-10-28 | Method of realizing multiside calling business in flexible exchange system |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101112013B (en) * | 2005-06-21 | 2012-05-30 | 中兴通讯股份有限公司 | Method for implementing multi-party calling in automatic exchanging optical network and its call controller |
| CN1893677B (en) * | 2005-07-08 | 2010-04-14 | 华为技术有限公司 | Method for realizing multi-part call |
| CN1925524B (en) * | 2005-08-31 | 2010-05-12 | 上海贝尔阿尔卡特股份有限公司 | Method and apparatus for realizing calling switching in soft exchanging communication network |
| CN101052073B (en) * | 2006-04-06 | 2011-06-01 | 华为技术有限公司 | Method for establishing multiparty conversation based on H.248 protocol |
| CN100466530C (en) * | 2006-06-26 | 2009-03-04 | 华为技术有限公司 | Method and device for connecting multi-conference |
| CN102238291B (en) * | 2010-05-06 | 2014-03-19 | 中兴通讯股份有限公司南京分公司 | Operator position system realizing one call with a plurality of shakes, virtual operator position device and method |
| CN102307270B (en) * | 2011-09-08 | 2013-06-12 | 河北远东哈里斯通信有限公司 | Soft switch service delayed triggering method |
| CN106878959B (en) * | 2016-12-29 | 2019-09-10 | 河北远东通信系统工程有限公司 | A kind of flexible and efficient trunked call Controlling model |
| CN111212193B (en) * | 2020-01-14 | 2021-04-27 | 中电智恒信息科技服务有限公司 | Method for identifying user on-hook state based on user color ring information |
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