CN100421444C - Call transfer method - Google Patents
Call transfer method Download PDFInfo
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- CN100421444C CN100421444C CNB2004100741429A CN200410074142A CN100421444C CN 100421444 C CN100421444 C CN 100421444C CN B2004100741429 A CNB2004100741429 A CN B2004100741429A CN 200410074142 A CN200410074142 A CN 200410074142A CN 100421444 C CN100421444 C CN 100421444C
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- hooking
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- switching point
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Abstract
The present invention discloses a call transfer method applied to an intelligent network. The method comprises that: a. a talking calling subscriber or called subscriber sends call transfer to a local service switching point; b. the service switching point triggers the service control point; c. the service control point indicates number collection to the calling subscriber or the called subscriber sending the call transfer; d. the calling subscriber or the called subscriber sending the call transfer reports a subscriber number of a third party to the service control point; e. the service control point controls the service switching point to put through a speech path between the called subscriber or the calling subscriber talking with the calling subscriber or the called subscriber sending the call transfer and the subscriber of the third party. Compared with the prior art in which a call transfer function is realized by the service switching point independently, the present invention realizes a control functions by the service control point and realizes the exchange function by the service switching point so as to complete call transfer. The present invention accords with standards of an intelligent network and is more favorable to the realization of entire network intelligence in the future.
Description
Technical field
The present invention relates to the intelligent network field, in particular, the present invention relates to a kind of method that on intelligent network, realizes hooking.
Background technology
Intelligent network (IN, Intelligent Network) is a kind of being based upon on the Back ground Information network, based on notion professional and that exchange is separated, provides a kind of new network structure of various new business for the user.It is to be widely used at stored-program control exchange, computer technology is developed rapidly, under the condition that No.7 nation-wide Network is extensively implemented, be node with the stored-program control exchange, signalling system No.7 is as each internodal transmission means and the professional communication network of controlling computer as core.The control of its business (is SCP: service control point) finish by a concentrated node, professional generation and professional management are also finished by the node of concentrating, and the switch in the network is finished basic call treatment, and finally finishes various complicated service under the commander of service control point.Because intelligent network can be by setting up service control point and the database of concentrating, and further service management and the service creation environment of concentrating of setting up, therefore, can be quick, economical, be existing telephone network (PSTN easily, Public Switched Telephone Network), public packet switched data net (PSPDN, Public Switched Packet Data Network), Narrowband Integrated Services Digital Network (N-ISDN, Narrowband Integrated-Services Digital Network), even computer internet, mobile radio communication and broadband integrated services digital network networks such as (B-ISDN, BroadbandIntegrated-Services Digital Network) provides various value-added services.
Utilize the flexible and powerful disposal ability of intelligent network, greatly the network capabilities of elevator system and professional ability.At present, intelligent network is all gone up intelligent network developing into the whole network all-calls gradually, is responsible for finishing CCF by intelligent network, and Service Switching Point is just finished calling junction function according to the indication of service control point.Must realize on service control point promptly that also the processing of all-calls all is responsible for finishing by basic call business, the bookkeeping of calling out correlation function with the basis then has management service to be responsible for finishing, based on this, can also realize other various intelligent new business such as card number service, Ring Back Tone service, Advice of Charge at the End of Conversation business.
On the other hand, the hooking function is a kind of basic call business, in present intelligent network, realize the hooking function at Service Switching Point usually, also promptly can't realize by service control point control, cause under present intelligent network, can't realizing that all-calls all goes up intelligent network as the hooking function of basic call business.
Summary of the invention
The technical problem that the present invention solves provides a kind of hooking method that realizes by service control point, is beneficial to the intelligentized development of the whole network.
For addressing the above problem, hooking method of the present invention comprises:
A, the calling subscriber who is conversing or called subscriber initiate hooking to the Service Switching Point at its place;
B, described Service Switching Point trigger service control point;
C, the indication of described service control point collect the digits to calling subscriber or the called subscriber who initiates hooking;
The calling subscriber or the called subscriber of d, initiation hooking report third party's Subscriber Number to service control point;
E, service control point are controlled Service Switching Point is connected and the calling subscriber of described initiation hooking converses called subscriber and third party's user's voice path according to described third party's Subscriber Number; Perhaps, calling subscriber and third party's user's voice path of called subscriber's conversation of connection of control Service Switching Point and described initiation hooking.
Wherein, step c comprises:
Service control point issues the Indication message that collects the digits to Service Switching Point;
Service Switching Point is received third party's Subscriber Number to the calling subscriber or the called subscriber that initiate hooking.
Wherein, steps d comprises:
The calling subscriber or the Service Switching Point of called subscriber to its place of initiating hooking report third party's Subscriber Number;
Described Service Switching Point reports third party's Subscriber Number to service control point.
Wherein, step e comprises:
Service control point issues the connection Indication message to Service Switching Point, carries described third party's Subscriber Number in this message;
Service Switching Point is set up calling subscriber or called subscriber and third party's user's voice path of initiating hooking;
Initiate calling subscriber's on-hook of hooking, the Service Switching Point at its place discharges related resource, and called subscriber and third party's user's voice path of the calling subscriber of foundation and described initiation hooking conversation, perhaps, initiate called subscriber's on-hook of hooking, the Service Switching Point at its place discharges related resource, and calling subscriber and third party's user's voice path of the called subscriber of foundation and described initiation hooking conversation.
Preferably, described intelligent network comprises that also step b comprises from ring element:
Service Switching Point triggers service control point and carries out caller hooking or called hooking call logic to the test point message of service control point transmission caller hooking or called hooking;
Service control point issues connection message in the termination mode to Service Switching Point, comprises caller hooking service logic or called hooking service logic access code in the described connection message;
Name a person for a particular job described caller hooking service logic or called hooking service logic access code of operation exchange sends to from ring element;
Send test point message from ring element to service control point, comprise the access code of described caller hooking service logic or called hooking service logic in the described test point message;
Service control point starts caller hooking or called hooking service logic according to described caller hooking service logic or called hooking service logic access code.
Preferably, step c comprises:
Service control point issues the Indication message that collects the digits from ring element accordingly to Service Switching Point;
Describedly receive third party's Subscriber Number to the calling subscriber or the called subscriber that initiate hooking from ring element.
Preferably, steps d comprises:
The calling subscriber or the Service Switching Point of called subscriber to its place of initiating hooking report third party's Subscriber Number from ring element accordingly;
Describedly report third party's Subscriber Number to service control point from ring element.
Preferably, step e comprises:
Service control point issues the connection Indication message from ring element accordingly to Service Switching Point, carries described third party's Subscriber Number in this message;
Set up calling subscriber or called subscriber and third party's user's voice path of initiating hooking from ring element indicating services exchange point;
Initiate calling subscriber's on-hook of hooking, the Service Switching Point at its place discharges related resource, and called subscriber and third party's user's voice path of the calling subscriber of foundation and described initiation hooking conversation, perhaps, initiate called subscriber's on-hook of hooking, the Service Switching Point at its place discharges related resource, and calling subscriber and third party's user's voice path of the called subscriber of foundation and described initiation hooking conversation.
Wherein, describedly independently be provided with or be arranged on Service Switching Point from ring element.
Wherein, described intelligent network is mobile intelligent net or fixed network intelligent network.
Compared with prior art, the present invention has following beneficial effect:
The hooking function is realized separately by Service Switching Point compared to existing technology, and the present invention realizes controlled function by service control point, finishes hooking by Service Switching Point realization function of exchange, meets the standard of intelligent network, more helps realizing in the future the whole network intellectuality.
Description of drawings
Fig. 1 is the applied intelligent network network environment of a hooking method of the present invention schematic diagram;
Fig. 2 is the flow chart of hooking method of the present invention;
Fig. 3 is the call flow diagram of the caller hooking method that realizes in fixed network of the present invention;
Fig. 4 is the call flow diagram of the called hooking method that realizes in fixed network of the present invention;
Fig. 5 is that the present invention is at the call flow diagram that the caller hooking method that realizes in the fixed network of ring element is arranged;
Fig. 6 is that the present invention is at the call flow diagram that the called hooking method that realizes in the fixed network of ring element is arranged.
Embodiment
With reference to figure 1, this figure is the applied intelligent network network environment of a hooking method of the present invention schematic diagram.
As shown in the figure, the intelligent network network entity that the present invention relates generally to mainly comprises: Service Switching Point (SSP, Service Switching Point) 10 and service control point (SCP, Service Control Point) 11.
Wherein SSP 10 is the tie points that connect mobile network 15, PSTN net 16, ISDN net 17 and intelligent network, the function that inserts intelligent network is provided, SSP 10 can detect the request of IN service, and communicate by letter with SCP 11, request to SCP 11 responds, and allows the service logic among the SCP 11 to influence call treatment.
SCP 11 is core components of intelligent network, its storaging user data and service logic, major function is to receive Query Information and the Query Database that SSP 10 sends here, carry out various decodings, simultaneously, SCP 11 can start different service logics according to the call event of offering on the SSP 10, sends the calling control command according to service logic to corresponding SSP 10, thereby realizes various intelligent calls.All professional controlled function that intelligent network provided all concentrate among the SCP 11, and the standard interface protocol according to intelligent network between SCP 11 and the SSP 10 communicates, as Intelligent Network Application Protocol (intelligent network application protocol is the part of signalling system No.7 agreement).
In addition, in the specific implementation, above-mentioned intelligent network also need comprise: service creation environment (SCE, ServiceCreation Environment) 12 business management system (S MS,, Service Management Point) 13, ip intelligent peripherals (IP, Intelligent Peripheral) 14 nodes such as grade and the NO.7 signaling network that is connected these nodes and data network are formed.
Hooking is that the square tube in the conversation is crossed hooking and will be routed to third party user with the opposing party of own conversation, and the present invention mainly realizes controlled function by service control point in described intelligent network, and Service Switching Point realization function of exchange finally realizes hooking simultaneously.Need to prove that the present invention can be applied in the fixed network and also can realize in mobile network, below hooking method of the present invention is elaborated.
With reference to figure 2, this figure is the flow chart of hooking method of the present invention.
For realizing described hooking function, hooking method of the present invention comprises the steps:
At first, in step 20, calling subscriber who is conversing or called subscriber initiate hooking to the Service Switching Point at its place;
Then, in step 21, the Service Switching Point at the user place of described initiation hooking triggers service control point;
And then in step 22, the described service control point indication that is triggered collects the digits to calling subscriber or the called subscriber who initiates hooking;
At this moment, in step 23, the calling subscriber or the called subscriber that initiate hooking report third party's Subscriber Number to service control point, can report by Service Switching Point during specific implementation;
At last, in step 24, service control point is according to described third party's Subscriber Number, and the control Service Switching Point is connected and the calling subscriber of described initiation hooking or called subscriber or calling subscriber and third party's user's voice path of called subscriber's conversation.
With specific embodiment hooking method of the present invention is further described below.Because the present invention improves essence and only is service control point and Service Switching Point in the intelligent network, only sets forth with the example that is embodied as in the fixed network below.For realizing in the mobile intelligent net that principle is identical, repeat no more later on.
With reference to figure 3, this figure is a call flow diagram of realizing the caller hooking in fixed network.
In the present embodiment, current talking user is user A and user B, wherein user A is the calling subscriber, user B is the called subscriber, user C is third party user, initiate hooking by calling subscriber's (being user A), in addition, the local end office (EO) that initiates the user A place of hooking is the exchange with Service Switching Point function, in order to realize that the hooking function needs to preserve the hooking service logic at service control point in advance, after Service Switching Point (being the local end office (EO) at calling subscriber A place in the present embodiment) detected hooking, the triggering service control point was carried out described hooking service logic and is finally realized hooking, and the specific implementation step is as follows:
1) calling subscriber A initiates hooking to the LS at its place;
2) LS at user A place sends Initial Detection Point message id P to SCP and triggers the hooking service logic;
3) SCP issues PC message to the LS at user A place and indicates it that user A is collected the digits;
4) LS at user A place is to user A playback prompting input third party Subscriber Number;
5) telephone number of user A input user C;
6) LS at user A place collects the digits, and reports PCR message to SCP then, comprises the telephone number of user C in this message;
7) after SCP receives described message, parse user C number wherein, the LS to user A place issues connect message then, carries user C number in this message;
8) LS at user A place sets up the voice pathway of user A and user C, and user A and user C begin conversation;
9) user A on-hook, the LS at user A place discharges the relevant resource CCB of user A, merges the related resource CCB of user B and user C, sets up the voice pathway of user B and user C, and user B finishes hooking by the LS and the user C conversation at user A place.
With reference to figure 4, this figure is a call flow diagram of realizing called hooking in fixed network.
In the present embodiment, current talking user is user A and user B, wherein user A is the calling subscriber, user B is the called subscriber, user C is third party user, initiate hooking by called subscriber's (being user B), equally, the local end office (EO) that initiates the user B place of hooking in the present embodiment also must be the exchange with Service Switching Point function, in order to realize that the hooking function needs to preserve the hooking service logic at service control point in advance, after Service Switching Point (being the local end office (EO) at user B place in the present embodiment) detected hooking, the triggering service control point was carried out described hooking service logic and is finally realized hooking
Concrete called hooking process as shown in Figure 4, process and top caller hooking process are similar, unique different place is that to be initiated hooking is the called subscriber in the present embodiment, and the calling subscriber is not described in detail here by LS and third party's user's communication at called subscriber's (being user B) place.
Carry out function of exchange in order to be more conducive to Service Switching Point among the present invention, prevent when carrying out hooking influence to original call flow, also in intelligent network, increased by one from ring element, describedly can be set to an independently crosspoint separately, also can be arranged in the Service Switching Point a part as Service Switching Point from ring element.
Specify below and be provided with the operation flow of behind ring element, carrying out hooking, also describe with the example that is embodied as in the fixed network.
With reference to figure 5, this figure is that the present invention is at the call flow diagram that the caller hooking method that realizes in the fixed network of ring element is arranged.
The same, in the present embodiment, current talking user is user A and user B, and wherein user A is the calling subscriber, and user B is the called subscriber, user C is third party user, initiate hooking by main users (being user A), in addition, the local end office (EO) that initiates calling subscriber's (being user A) place of hooking is the exchange with Service Switching Point function, in order to realize that the hooking function needs to preserve the hooking service logic at service control point in advance, call flow below underdraws.
User A and user B conversation, calling subscriber A initiates hooking, call hold tone is put to user B in system, send IDP message to SCP by the user A place LS of end office (EO) simultaneously, this IDP message shows that by Extended Protocol this is that caller hooking IDP message is to notify SCP user A at hooking, carry out the associated call logic, SCP issues connection (indication of TCEND is represented to issue connection in the termination mode in the INAP standard) by TCEND+CONNECT, special access code is handed down to the LS of end office (EO) of user A, the LS of end office (EO) of user A sends this special access code from ring element to by signaling between net, from ring element described special access code is carried by IDP message and to send to SCP, SCP carries out the hooking service logic, issue PC message and receive third party's Subscriber Number, the number of user A appropriation family C (user C number is third party's Subscriber Number), dialing back SCP issues connection message and gives from ring element, carry user C number in this connection message, this moment is by the voice pathway between responsible connecting subscribers participating A of exchange and the user C, if do not connect, then user A and user B continue conversation, if connect, after user A on-hook, the LS at user A place discharges the relevant resource CCB of user A, merge user B, the related resource CCB of C, set up the conversation of user B and user C, finally realize hooking.
With reference to figure 6, this figure is that the present invention is at the call flow diagram that the called hooking method that realizes in the fixed network of ring element is arranged.
The same, in the present embodiment, current talking user is user A and user B, and wherein user A is the calling subscriber, and user B is the called subscriber, user C is third party user, initiate hooking by called subscriber's (being user B), in addition, the local end office (EO) that initiates called subscriber's (being user B) place of hooking is the exchange with Service Switching Point function, in order to realize that the hooking function needs to preserve the hooking service logic at service control point in advance, call flow below underdraws.
In user A and the user B communication process, called subscriber B hooking, user A is put call hold tone, the end office (EO) at user B place sends the IDP message of expansion to SCP simultaneously, the IDP message of this expansion shows called hooking, SCP issues connection by TCEND+CONNECT, special access code is handed down to user B place end office (EO), and end office (EO) is by signaling is from ring element between net, and the IDP message that will carry special access code from ring element sends to SCP, SCP carries out called hooking service logic, issue PC message and collect the digits, user B input user C number, SCP collect the digits finish after, issuing connection message connect message gives from ring element, by the voice pathway of exchange control connecting subscribers participating B and user C, if do not connect, then user A and user B continue conversation, if user B and user C connect, then after user B on-hook, system discharges the resource CCB relevant with user B, is incorporated into user A, the resource CCB that C is relevant, the conversation of setting up user A and user C.
The above only is a preferred implementation of the present invention, does not constitute the qualification to protection range of the present invention.Any any modification of being done within the spirit and principles in the present invention, be equal to and replace and improvement etc., all should be included within the claim protection range of the present invention.
Claims (10)
1. a hooking method is applied in the intelligent network, and described intelligent network comprises Service Switching Point and service control point, it is characterized in that, comprising:
A, the calling subscriber who is conversing or called subscriber initiate hooking to the Service Switching Point at its place;
B, described Service Switching Point trigger service control point;
C, the indication of described service control point collect the digits to calling subscriber or the called subscriber who initiates hooking;
The calling subscriber or the called subscriber of d, initiation hooking report third party's Subscriber Number to service control point;
E, service control point are controlled Service Switching Point is connected and the calling subscriber of described initiation hooking converses called subscriber and third party's user's voice path according to described third party's Subscriber Number; Perhaps, calling subscriber and third party's user's voice path of called subscriber's conversation of connection of control Service Switching Point and described initiation hooking.
2. hooking method according to claim 1 is characterized in that step c comprises:
Service control point issues the Indication message that collects the digits to Service Switching Point;
Service Switching Point is received third party's Subscriber Number to the calling subscriber or the called subscriber that initiate hooking.
3. hooking method according to claim 1 is characterized in that steps d comprises:
The calling subscriber or the Service Switching Point of called subscriber to its place of initiating hooking report third party's Subscriber Number;
Described Service Switching Point reports third party's Subscriber Number to service control point.
4. hooking method according to claim 1 is characterized in that step e comprises:
Service control point issues the connection Indication message to Service Switching Point, carries described third party's Subscriber Number in this message;
Service Switching Point is set up calling subscriber or called subscriber and third party's user's voice path of initiating hooking;
Initiate calling subscriber's on-hook of hooking, the Service Switching Point at its place discharges related resource, and called subscriber and third party's user's voice path of the calling subscriber of foundation and described initiation hooking conversation, perhaps, initiate called subscriber's on-hook of hooking, the Service Switching Point at its place discharges related resource, and calling subscriber and third party's user's voice path of the called subscriber of foundation and described initiation hooking conversation.
5. hooking method according to claim 1 is characterized in that, described intelligent network comprises that also step b comprises from ring element:
Service Switching Point triggers service control point and carries out caller hooking or called hooking call logic to the test point message of service control point transmission caller hooking or called hooking;
Service control point issues connection message in the termination mode to Service Switching Point, comprises caller hooking service logic or called hooking service logic access code in the described connection message;
Name a person for a particular job described caller hooking service logic or called hooking service logic access code of operation exchange sends to from ring element;
Send test point message from ring element to service control point, comprise the access code of described caller hooking service logic or called hooking service logic in the described test point message;
Service control point starts caller hooking or called hooking service logic according to described caller hooking service logic or called hooking service logic access code.
6. hooking method according to claim 5 is characterized in that step c comprises:
Service control point issues the Indication message that collects the digits from ring element accordingly to Service Switching Point;
Describedly receive third party's Subscriber Number to the calling subscriber or the called subscriber that initiate hooking from ring element.
7. hooking method according to claim 5 is characterized in that steps d comprises:
The calling subscriber or the Service Switching Point of called subscriber to its place of initiating hooking report third party's Subscriber Number from ring element accordingly;
Describedly report third party's Subscriber Number to service control point from ring element.
8. hooking method according to claim 5 is characterized in that step e comprises:
Service control point issues the connection Indication message from ring element accordingly to Service Switching Point, carries described third party's Subscriber Number in this message;
Set up calling subscriber or called subscriber and third party's user's voice path of initiating hooking from ring element indicating services exchange point;
Initiate calling subscriber's on-hook of hooking, the Service Switching Point at its place discharges related resource, and called subscriber and third party's user's voice path of the calling subscriber of foundation and described initiation hooking conversation, perhaps, initiate called subscriber's on-hook of hooking, the Service Switching Point at its place discharges related resource, and calling subscriber and third party's user's voice path of the called subscriber of foundation and described initiation hooking conversation.
9. hooking method according to claim 5 is characterized in that, describedly independently is provided with or is arranged on Service Switching Point from ring element.
10. according to each described hooking method of claim 1-9, it is characterized in that described intelligent network is mobile intelligent net or fixed network intelligent network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100741429A CN100421444C (en) | 2004-08-31 | 2004-08-31 | Call transfer method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100741429A CN100421444C (en) | 2004-08-31 | 2004-08-31 | Call transfer method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1744631A CN1744631A (en) | 2006-03-08 |
| CN100421444C true CN100421444C (en) | 2008-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2004100741429A Expired - Fee Related CN100421444C (en) | 2004-08-31 | 2004-08-31 | Call transfer method |
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| Country | Link |
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| CN (1) | CN100421444C (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1136254A (en) * | 1995-04-24 | 1996-11-20 | 美国电报电话公司 | Intelligent call forwarding |
| US6466798B1 (en) * | 1993-07-08 | 2002-10-15 | Qwest Communications International Inc. | System and method for automatically distributing communications to selected locations |
| CN1422060A (en) * | 2002-12-27 | 2003-06-04 | 北京邮电大学 | Method of opening control point business capacity of intelligent network service to the third party |
-
2004
- 2004-08-31 CN CNB2004100741429A patent/CN100421444C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6466798B1 (en) * | 1993-07-08 | 2002-10-15 | Qwest Communications International Inc. | System and method for automatically distributing communications to selected locations |
| CN1136254A (en) * | 1995-04-24 | 1996-11-20 | 美国电报电话公司 | Intelligent call forwarding |
| CN1422060A (en) * | 2002-12-27 | 2003-06-04 | 北京邮电大学 | Method of opening control point business capacity of intelligent network service to the third party |
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| Publication number | Publication date |
|---|---|
| CN1744631A (en) | 2006-03-08 |
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Granted publication date: 20080924 Termination date: 20130831 |