CN102404651B

CN102404651B - Method and system for realizing INAP (Intelligent Network Application Protocol) intelligent service on IMS (IP Multimedia Subsystem) network

Info

Publication number: CN102404651B
Application number: CN201110443414.8A
Authority: CN
Inventors: 张谋总; 梁鸿生; 王福荣; 王冬玲
Original assignee: China Telecom Corp Ltd
Current assignee: China Telecom Corp Ltd
Priority date: 2011-12-27
Filing date: 2011-12-27
Publication date: 2014-12-03
Anticipated expiration: 2031-12-27
Also published as: CN102404651A

Abstract

The invention provides a method and system for realizing INAP (Intelligent Network Application Protocol) intelligent service on an IMS (IP Multimedia Subsystem) network. An intelligent business triggering rule of an IMS user is stored on an HSS (Home Subscriber Server), each fixed network intelligent service needs to be signed with an iFC (Initial Filter Criteria), an AS (Application Server) address of the iFC carries an address of an IM SSF (IP Multimedia Service Switching Function), the ServiceInfo also carry an AccessCode, namely, intelligent AccessCode; an SCSCF (Serving CSCF (Call Session Control Function)) finds out an IP (Internet Protocol) address of the SSF according to the Service information in the iFC and acquires the AccessCode according to the ServiceInfo information in the iFC, and an Invite message sent to the SSF carries the AccessCode; the SSF acquires the AccessCode according to the Route header field in the invite message, analyzes the used SCP (Service Control Point) according to matching between an area code of a calling number and the intelligent service AccessCode; the SSF inquires local configuration to obtain an SCP address; and triggering of relevant intelligent services is finished by using the INAP. According to the invention, after a current network user is accessed into the IMS, inheritance of supplementary service of the current network user is realized by an MMETL (multimedia telephone) AS network element, and inheritance of intelligent service owned by the current network user is realized by an IM-SSF network element through adopting butt joint of the INAP and the current network SCP.

Description

A kind of method and system that realize INAP IN service on IMS network

Technical field

The present invention relates to a kind of method and system that realize INAP IN service on IMS network.

Background technology

(1) requirement of IMS Subscriber Number form numbering

1) existing network fixed network user mixes the background of distributing telephone numbers

After intelligentized pstn, employing is carried out physical number numbering, at SHLR, is deposited the mode of physical number and logical number corresponding relation and signing IN service switch ports themselves, realize Subscriber Number thoroughly separated with switch, make fixed telephone subscriber's number become very flexible.In order to facilitate the analysis of speech channel route prefix data, specially for each PSTN end office (EO) (containing soft switch) distributes a physical number section.IT system only need just can be known the office direction that user belongs to according to user's physical number section like this, just knows this issues work order toward which PSTN end office (EO) (containing soft switch).So the distribute telephone numbers mode of PSTN user on SHLR has two kinds at present: mode one, user does not handle the business such as number portable or two phones just one number, user does not just mix and distributes telephone numbers, and puts logical number, physical number is configured to the same with logical number while distributing telephone numbers on SHLR while distributing telephone numbers in end office (EO).Mode two, user handles the business such as number portable or two phones just one number, and user need mix and distributes telephone numbers, and puts physical number, physical number and logical number are configured to different while distributing telephone numbers on SHLR while distributing telephone numbers in end office (EO).

2) requirement of IMS Subscriber Number form numbering

After service dispense or user's registration, in HSS, deposit the corresponding relation of IMS IP multimedia private identity (calling privately owned number in the following text) and public identify (TEL URI form) (calling publicly-owned number in the following text), in ENUM, deposit the corresponding relation of IMS user SIP URI and TEL URI, in MMTEL AS, only deposit two publicly-owned numbers of user.Route and addressing in IMS Internal call are all generally the publicly-owned numbers with SIP URI form; MGCF is used the publicly-owned number of TEL URI form when mutual with ext nal network element such as PSTN, SHLR, and it is mutual that MGCF only uses publicly-owned number and the SHLR of TELURI form; SSF is generally used publicly-owned number and the SCP of SIP URI form mutual.The network elements such as the PCSCF of IMS, ICSCF, SCSCF, MMTEL AS all can produce ticket, calling number form in the ticket that different network elements produces is all different, and for example, calling number in the ticket that PCSCF gathers is that the calling number in the ticket that gathers of privately owned number, MMTELAS is publicly-owned number.

As can be seen here, when carrying out service dispense toward IMS, if user's publicly-owned number mark and privately owned number mark adopt different number form (physical number or logical number), the calling number form of user's caller demonstration and bill record collection is all had a certain impact.So adopt the IMS user of new section or the IMS user that mixing is distributed telephone numbers, the logical number that the essential user of the E.164 number of depositing at each network element of IMS (comprising private user identity and TEL URI form public subscriber identification) externally announces no matter be.

(2) suggestion of IMS and the networking of existing network related network elements

IMS docks with other ext nal network element (as fixed network soft switch, PSTN, PHS, SSP, CDMA) by MGCF/IM-MGW, and signalling route is transferred by LSTP.IMS is docked, realizes the triggering of fixed network IN service as SSP and fixed network SCP by SSF, the signalling route of SSF and SCP is also to transfer by LSTP.MGCF and SSF are two independently network elements, need to use independent signaling point code.Fig. 1 is shown in concrete networking.

1) IMS and C net MSCe switch are to adopt SIP-ITU-T to carry out IP intercommunication.IMS user dials the traffic of C network users (local and remote) and all by MGCF, by SIP-I, gives MSCe.

2) the speech channel route of IMS and the intercommunication of existing network related network elements is mainly to transfer by fixed network soft switch.

A, except IMS intra domain user, dial mutually and IMS user dials other traffic routes C network users and pass through soft switch and transfer, for IMS user, dial PSTN/PHS user, by soft switch agents query SHLR and trigger PSTN/PHS user's called intelligent service.

B, due to soft switch and all cross-domain networkings of IMS, for the IMS user of certain local network, call out PSTN or the PHS user of same local network, MGCF will add area code when striking out before called number, and the prefix translation table that soft switch could go the SHLR of inquiry ownership local network, the result returned for SHLR to jump to ownership local network according to the area code of called number again carries out follow-up number analysis.

C, initial stage MGCF/IM-MGW and existing network SS adopt the intercommunication of ISUP circuit; Later stage adopts SIP-ITU-T to carry out IP intercommunication.

3), for the 155M ability to IMS is tested, MGCF/IM-MGW can hold 155M light path with certain office direction that has 155M resource and test.The in the situation that of conditions permit, also can open PRI circuit test TDM PBX.

4) IMS user's (Xin Kai or moved by existing network PSTN) E.164 number and existing network PSTN user's logical number mixed putting completely, and can continue the narrow band service that enjoyment existing network SCP provides.

5) MGCF will support to dock with fixed network SHLR with MAP+ interface, and supports to configure whether inquire about SHLR by switch.

6) two network elements of MGCF and SSF will distribute independently signaling point code, and open through signalling route with LSTP respectively.The signalling route of MGCF to the signalling route of the office directions such as existing network soft switch and SSF to SCP office direction is all to transfer through LSTP.

(3) IMS user mixes the technical scheme of distributing telephone numbers with arrowband fixed network user

The existing network business that IMS network need to be inherited mainly comprises two aspects: the one, and succession user's supplementary service, user accesses after IMS, and supplementary service is all realized by MMETL AS network element.The 2nd, inherit user's IN service, such as mixing distribute telephone numbers, pre-payment, VPN, one number service, super nothing of day wing, two phones just one number etc., user accesses after IMS, can dock realization with existing network SCP by IM-SSF network element employing Intelligent Network Application Protocol.

In order to realize IMS user and arrowband fixed network, mix and distribute telephone numbers, IMS user needs to distribute telephone numbers and contract and turns the called intelligent access code of net on the SHLR of fixed network, to realize overseas user, dials IMS user and calls out and can be routed to IMS territory.When IMS user does caller, be whether first according to the user data configuring on ENUM, judge called is user in IMS city, IMS intra domain user is not dialled with regard to not needing to inquire about existing network SHLR and route to go out IMS territory and just can complete continuing of calling mutually like this.

1) user's call IMS user of existing network (new section or mixing are distributed telephone numbers): originating switch is first inquired about fixed network SHLR, afterwards again according to called intelligent access code that called subscriber contracted, route the call to the triggering that IMS network completes the relevant IN service of called IMS user and MMTEL AS business, and it is called to continue.PSTN user's call IMS user's flow process is shown in Fig. 2.

2) IMS user calls out existing network user: first by ENUM, judge whether called be IMS intra domain user, if not IMS intra domain user, just directly route the call to MGCF, MGCF does not inquire about fixed network SHLR, but calling is directly sent to MSCe switch or soft switch or relevant end office (EO), if PSTN/PHS user, be by soft switch agents query SHLR, and complete the triggering of called subscriber's IN service and continue.IMS user calls out PSTN user's flow process and sees Fig. 3.

3) IMS user's call IMS user's flow process is shown in Fig. 4.

Summary of the invention

Abbreviation

IMS:IP Multimedia SubsystemIP, IP multimedia subsystem, IMS

AGCF:Access Gateway Control Function, AGCF

CSCF:Call Session Control Function, CSCF

DNS:Domain Name System, domain name system

ENUM:Telephone Number Mapping, telephone number mapping

HSS:Home Subscriber Server, home subscriber server

I-CSCF:Interrogating-CSCF, inquiry-CSCF

MGCF:Media Gateway Control Function, MGCF

P-CSCF:Proxy-CSCF, agency-CSCF

PSTN:Public Switched Telephone Network, public switch telephone network

S-CSCF:Serving-CSCF, service-CSCF

IM-SSF:IP Multimedia Service Switching Function, IP Multimedia Service Switching Function

SIP:Session Initiation Protocol, Session initiation Protocol

In view of more than, the present invention proposes a kind of method and system that realize INAP IN service on IMS network.

A method that realizes INAP IN service on IMS network, comprising:

It is upper that IMS user's IN service triggering rule is kept at HSS, every kind of fixed network IN service iFC that all will contract, and in the AS address of iFC, carrying the address of IM SSF, in ServiceInfo, also carrying AccessCode access code is intelligent access code;

SCSCF finds the IP address of SSF according to the Service information in iFC, and according to the ServiceInfo acquisition of information access code AccessCode in iFC, in sending to the Invite message of SSF, carries access code;

SSF obtains access code according to the Route header field in invite message, according to the area code of calling number and IN service access code, coordinate to analyze used SCP, SCP address is obtained in the local configuration of SSF inquiry, uses Intelligent Network Application Protocol to complete the triggering of relevant IN service.

A system that realizes INAP IN service on IMS network, comprising:

HSS, preserves IMS user's IN service triggering rule, every kind of fixed network IN service iFC that all will contract, and in the AS address of iFC, carrying the address of IM SSF, in ServiceInfo, also carrying AccessCode access code is intelligent access code;

SCSCF, finds the IP address of SSF, and according to the ServiceInfo acquisition of information access code AccessCode in iFC, in sending to the Invite message of SSF, carries access code according to the Service information in iFC;

SSF, according to the Route header field in invite message, obtain access code, according to the area code of calling number and IN service access code, coordinate to analyze used SCP, SCP address is obtained in the local configuration of SSF inquiry, uses Intelligent Network Application Protocol to complete the triggering of relevant IN service.

The present invention provides a kind of method and system that realize INAP IN service on IMS network, when existing network user accesses after IMS, can realize the supplementary service of inheriting existing network user by MMETL AS network element, can adopt Intelligent Network Application Protocol dock with existing network SCP to realize distributing telephone numbers as mixed of inheriting that existing network user has, pre-payment, VPN, one number service, the sky wing to surpass the IN service of nothing, two phones just one number etc. by IM-SSF network element.

Accompanying drawing explanation

Accompanying drawing described herein is used to provide a further understanding of the present invention, forms a part of the present invention, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:

Fig. 1 is prior art IMS and existing network related network elements networking schematic diagram.

Fig. 2 is prior art PSTN user call IMS user's flow process.

Fig. 3 is the flow process that prior art IMS user calls out PSTN user.

Fig. 4 is prior art IMS user call IMS user's flow process.

Fig. 5 is the method flow that IMS network of the present invention is realized INAP IN service.

Fig. 6 is the nested triggering flow chart of calling and called IN service of the present invention.

Fig. 7 is the system configuration schematic diagram that the present invention realizes INAP IN service on IMS network.

Fig. 8 is the triggering flow process of the signing caller arrowband IN service of IMS user of the present invention.

Fig. 9 is the super triggering flow process without called intelligent service of the IMS+CDMA of the present invention days wing.

Embodiment

For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with specific embodiment, and with reference to accompanying drawing, the present invention is described in more detail.

IMS utilizes the IN service of Intelligent Network Application Protocol agent triggers fixed network SCP to inherit the IN service of PSTN by SSF network element.IMS user's arrowband IN service information is signing in HSS, preservation.Please refer to accompanying drawing explanation IMS network and realize the method for INAP IN service.

Please refer to Fig. 5, the present invention includes following steps and realize:

1) the fixed network IN service information of IMS network element storage

IMS user's IN service triggering rule is kept on HSS.Every kind of fixed network IN service iFC that will contract, in the AS address of iFC, carrying the address of IM SSF, in ServiceInfo, also carrying AccessCode access code is intelligent access code.Wherein the iFC of calling and called IN service can separate configuration.

2) processing of SCSCF network element to fixed network IN service

SCSCF finds the IP address of SSF according to the Service information in iFC, and according to the ServiceInfo acquisition of information access code AccessCode in iFC.And carrying Router header field in sending to the Invite message of SSF, Route header field is a character string, the information that comprises " AccessCode=* * ".

3) processing of IMS SSF network element to fixed network IN service

SSF first obtains access code according to the Route header field in invite message, then according to the area code of calling number and IN service access code, coordinates to analyze with which SCP and processes IN service.SSF is exactly the service key of area code according to calling number, IN service access code, IN service, then by relevant data configuration, points to signaling point code (DPC) or the GT code of certain SCP (Service Control Point, service control point).The function of access code be by call proceeding to SSF, be used for triggering business; Service key is for judging type of service.It is different that the SSF network element of different vendor relates to the configuration mode of this function, but each SSF manufacturer comes Realization analysis to use which SCP according to above-mentioned mode.

For example, have two SCP of SCP1 and SCP2, the super nothing of SCP1 (point coding is 14-40-1) the carrying day wing, SCP2 (point coding is 14-40-2) carry one-number-two-machine business.The super service key without business of it wing is 21, access code is 440, and the service key of two phones just one number is 22, access code is 441.On SSF, configuration service key is 21, access code is 440 sensing 14-40-1, and configuration service key is 22, access code is 441 sensing 14-40-2.

Again for example, there are SCP1 and SCP2 all to carry day wing super without business, but SCP1, some local sensing SCP2 that needs need to be pointed in some place, with regard to configurable caller area code be 0595, service key is 21, access code is 440 sensing 14-40-1, caller area code is 0596, service key is 22, access code 441 points to 14-40-2.

SSF inquires about local configuration again and obtains SCP address afterwards, uses Intelligent Network Application Protocol to complete the triggering of relevant IN service.INAP interface and PSTN existing network that SSF triggers for IN service are just the same, and the calling number of giving SCP is the number of getting in publicly-owned number E.164 partly.SSF gives the caller and the called number that in the message of SCP trigger intelligent business, carry can determine whether to be with area code according to parameter configuration.General SSF has the parameter configuration of similar CODE to determine whether to be with area code.The parameter configuration of each SSF foundation is different, and parameter name is also different, if but each manufacturer has so a parameter control trigger intelligent business whether is with area code configuration band area code, also have another one parameter configure specifically will with area code.

4) management of IMS SSF network element to cross-domain networking

Because an IMS system may be managed a plurality of local networks, the access code of the SCP that each local network belongs to or same IN service is likely different.For intelligent dialing business, SSF supports the area code and the access code that according to calling number, belong to that business is triggered to different SCP.For called intelligent service, SSF supports the area code and the access code that according to called number, belong to that business is triggered to different SCP.

5) for the estimation that realizes the call delay that fixed network IN service trigger method brings by SSF

Although realizing the scheme of fixed network IN service triggering by SSF is also to access SCP by Intelligent Network Application Protocol, the time of trigger intelligent business and common SSP scheme are basic identical, but because SSF in SSF scheme is IP message to the call path of SCSCF, can be slightly longer than the time delay of common SSP access SHLR, several IN services if a user has contracted, repeatedly trigger, also can repeatedly repeat SCSCF to the call path of SSF, Shi Yanhui is longer, but generally speaking, SSF to the call path of SCSCF be whole calling procedures 10% less than (being less than 2 seconds), user is difficult to perceive the time delay that call proceeding increases.

6) the nested triggering of calling and called IN service

It is that S-CSCF is ordered on different business platform (SIPAS or SCP) and triggers successively business according to the business in iFC that IMS realizes business nesting, can flexible configuration, can first trigger IMS business, also can first trigger fixed network IN service, or IN service is mingled in each AS business triggering.For the business nesting of SCP mode, S-CSCF brings IM-SSF by different service codes in order, and IM-SSF triggers business according to access code to SCP again; To S-CSCF, make a call, and carry current session information to S-CSCF, S-CSCF retains this session and triggers next business again according to session information, if it is called to continue without business, flow process as shown in Figure 6.

The present invention utilizes SHLR, realizes IMS and completely mixes and distribute telephone numbers with existing network, has improved the utilance of equipment, and the present invention can inherit IMS user to use existing network supplementary service and IN service, bring other problem can not to existing network equipment.

Supplementary service refers to that traditional calling transfer, caller demonstration, Call Waiting, call diversion etc. do not need the business that very complicated business logic supports (not needing SCP to coordinate).And IN service refers to the business of more complicated, the program in machine code that need to have SCP to write some business processing logic supports processing.MMTELAS network element itself is exactly IMS user's supplementary service network element.

Fig. 7 illustrates the system configuration schematic diagram that the present invention realizes INAP IN service on IMS network.

Below by drawings and Examples, the present invention will be further described.

(1) the triggering flow process of the signing caller arrowband IN service of IMS user

Fig. 8 be take the triggering flow process of VPN group that IMS user and C network users form caller arrowband IN service when example illustrates that IMS user does caller.

Process description:

1, IMS user 5287001 dials the small size code 1002 of this group of C network users, and call proceeding is to SCSCF.

2, S-CSCF inquiry HSS obtains calling subscriber 5287001 iFC, comprises access code 4431 corresponding to caller iVPN business in iFC.

3, S-CSCF delivers to IM-SSF according to the information in iFC by calling and triggers caller iVPN business, is issuing transparent transmission caller iVPN service access code 4431 in the INVTIE message of IM-SSF simultaneously.

4, IM-SSF triggers iVPN business according to access code 4431 to SCP.

5, SCP becomes called small size code 1002 into C network No. code and returns to IM-SSF, if caller also has prepayment service, SCP realizes in the lump.

6, IM-SSF makes a call to S-CSCF, and caller is 5287001, and called is C network No. code.

7, S-CSCF delivers to MGCF by calling.

8, MGCF arrives C net by call proceeding again.

(2) the triggering flow process of the called arrowband IN service that IMS user contracts

1) the IMS+CDMA days super triggering flow processs without called intelligent service of the wing

The super triggering without business of the wing in IMS+CDMA days is completed by the SSF of IMS, and contracting of business realizes at HSS, and the user data configuration of SCP remains unchanged, and user only needs the signing called intelligent access code that turns net on SHLR.When non-IMS intra domain user is called out the IMS user of the super nothing of the signing sky wing, originating switch inquiry SHLR obtains the called intelligent access code that turns net, according to turning net intelligent access code, route the call in IMS territory afterwards, by IMS, complete the called day wing super without the triggering of business and continuing of calling.

Fig. 9 is the flow process that IMS user calls out the IMS user of the signing day super nothing of the wing.

1, IMS user 52870001 calls out and is signed with the super IMS user 52870002 without business of day wing, calls out and delivers to S-CSCF by AGCF or P-CSCF/.

2, S-CSCF inquiry HSS obtains called 5287002 iFC, comprises day wing super without access code information 4432 corresponding to business in iFC.

3, S-CSCF delivers to IM-SSF according to the information in iFC by calling to trigger the called day wing super without IN service.Super without business for the sky wing, SCSCF is to issue in the INVTIE message of IM-SSF the transparent transmission sky wing super without service access code 4432.

4, IM-SSF triggers day super nothing of the wing according to access code 4432 to SCP.

5, the C net that SCP returns to called 5287002 bindings is from number 189xxxxxxxx and PSTN major number 5287002.

6, IM-SSF initiates two-way to S-CSCF and calls out, and caller is 5287001, is calledly respectively 5287002 and 189xxxxxxxx.

7, S-CSCF continues 5287002, and C net is called out and delivered to MGCF.

8, MGCF is routed to C net again.

2) the triggering flow process of IMS+PHS two phones just one number called intelligent service

The triggering of IMS+PHS one-number-two-machine business is completed by the SSF of IMS, and contracting of business realizes at HSS.In order to ensure business, can not be recycled triggering, the data of IMS+PHS two phones just one number user on SHLR and SCP all will be made an amendment, and need handset to delete, only contract and turn the called intelligent access code of net simultaneously on SHLR; On SCP, need handset number to change into and turn net intelligent access code+8/7 logical number, main frame represents that IMS user, handset represent PHS user.

When IMS user call IMS+PHS two phones just one number user, SCSCF is directly according to the signing iFC triggering rule of called subscriber, trigger one-number-two-machine business to SSF, and then SCP issues with two numbers that shake, afterwards SSF continue simultaneously two called.SCSCF can be by the corresponding number of handset (turning net intelligent access code+called number) through MGCF route to soft switch, soft switch inquiry SHLR obtains called roaming number, and the PHS user that continues.

When non-IMS intra domain user call IMS+PHS two phones just one number user, originating switch is first inquired about the SHLR of fixed network, according to called subscriber contracted, turn again afterwards the called intelligent access code of net, route the call to the triggering that IMS network completes called two phones just one number IN service, and it is called to continue.

As to the conclusion of describing in detail, should notice that those skilled in the art will be apparent from can make many variations and modification to preferred embodiment, and not depart from fact principle of the present invention.Within this variation and modification are included in the scope of the present invention described in appended claims.

Claims

1. on IMS network, realize a method for INAP IN service, comprising:

IMS user's IN service triggering rule is kept on HSS, every kind of fixed network IN service iFC that all will contract, in the AS address of iFC, carrying the address of IM SSF, in ServiceInfo, also carrying AccessCode access code is intelligent access code, wherein, access code be by call proceeding to SSF, be used for triggering business;

SSF obtains access code according to the Route header field in invite message, according to the area code of calling number and IN service access code, coordinate to analyze used SCP, SCP address is obtained in the local configuration of SSF inquiry, uses Intelligent Network Application Protocol to complete the triggering of relevant IN service;

Wherein, also comprise the nested triggering of calling and called IN service:

SCSCF is ordered on different business platforms and triggers successively business according to the business in iFC, and described business platform is SIPAS or SCP platform, first triggers IMS business or first triggers fixed network IN service or IN service is mixed in each AS business and triggers;

For the business nesting of SCP mode, S-CSCF brings IM-SSF by different service codes in order, and IM-SSF triggers business according to access code to SCP again; To S-CSCF, make a call, and carry current session information to S-CSCF, S-CSCF retains this session and triggers next business again according to session information, if it is called to continue without business.

2. on IMS network, realize according to claim 1 the method for INAP IN service, according to the area code of calling number and IN service access code, coordinate to analyze used SCP, comprising:

SSF, according to the service key of the area code of calling number, IN service access code, IN service, points to signaling point code or the GT code of certain SCP by relevant data configuration, be defined as used SCP.

3. on IMS network, realize according to claim 2 the method for INAP IN service, comprising:

For intelligent dialing business, the area code that SSF belongs to according to calling number and access code are triggered to different SCP by business;

For called intelligent service, the area code that SSF belongs to according to called number and access code are triggered to different SCP by business.

4. according to described in claim 1 or 2 or 3, on IMS network, realize the method for INAP IN service, use Intelligent Network Application Protocol to complete the triggering of relevant IN service, comprising:

SSF give the caller of carrying in the message of SCP trigger intelligent business and called number according to parameter configuration determine whether with area code and specifically will with area code.

5. on IMS network, realize a system for INAP IN service, comprising:

HSS, preserve IMS user's IN service triggering rule, every kind of fixed network IN service iFC that all will contract, in the AS address of iFC, carrying the address of IM SSF, in ServiceInfo, also carrying AccessCode access code is intelligent access code, wherein, access code be by call proceeding to SSF, be used for triggering business;

SSF, according to the Route header field in invite message, obtain access code, according to the area code of calling number and IN service access code, coordinate to analyze used SCP, SCP address is obtained in the local configuration of SSF inquiry, uses Intelligent Network Application Protocol to complete the triggering of relevant IN service;

Wherein, described SCSCF also carries out the nested triggering of calling and called IN service, according to the business in iFC, be ordered into and on different business platforms, trigger successively business, described business platform is SIPAS or SCP platform, first triggers IMS business or first triggers fixed network IN service or IN service is mixed in each AS business and triggers;

6. on IMS network, realize according to claim 5 the system of INAP IN service, wherein, described SSF is according to the service key of the area code of calling number, IN service access code, IN service, the signaling point code or the GT code that by relevant data configuration, point to certain SCP, be defined as used SCP.

7. on IMS network, realize according to claim 6 the system of INAP IN service, wherein, for intelligent dialing business, the area code that described SSF belongs to according to calling number and access code are triggered to different SCP by business; For called intelligent service, the area code that SSF belongs to according to called number and access code are triggered to different SCP by business.

8. according to described in claim 5 or 6 or 7, on IMS network, realize the system of INAP IN service, wherein, described SSF give the caller of carrying in the message of SCP trigger intelligent business and called number according to parameter configuration determine whether with area code and specifically will with area code.