CN102404651A

CN102404651A - Method and system for realizing INAP (Intelligent Network Application Protocol) intelligent service on IMS (IP Multimedia Subsystem) network

Info

Publication number: CN102404651A
Application number: CN2011104434148A
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: 2012-04-04
Anticipated expiration: 2031-12-27
Also published as: CN102404651B

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 on the IMS network, realize the INAP IN service

Technical field

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

Background technology

(1) requirement of IMS Subscriber Number form numbering

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

After intelligentized pstn; Employing is carried out the mode that physical number is numbered, deposited physical number and logical number corresponding relation and signatory IN service at SHLR to switch ports themselves; Realize that Subscriber Number thoroughly separates with switch, make fixed telephone subscriber's number become very flexible.The analysis of the prefix of speech channel route for ease data all distributes a physical number section for each PSTN end office (EO) (containing soft switch) specially.IT system only needs the office direction just knowing the user and belonged to according to user's physical number section like this, and it is single just to know this issues the worker 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; The user does not handle business such as number portable or two phones just one number; The user does not just mix and does not distribute telephone numbers, and puts logical number when distributing telephone numbers in end office (EO), physical number is configured to the same with logical number when on SHLR, distributing telephone numbers.Mode two, the user handles business such as number portable or two phones just one number, and the user need mix and distributes telephone numbers, and puts physical number when distributing telephone numbers in end office (EO), physical number and logical number are configured to different when on SHLR, distributing telephone numbers.

2) requirement of IMS Subscriber Number form numbering

After service dispense or user's registration; 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) among the HSS; Deposit the corresponding relation of IMS user SIP URI and TEL URI among the ENUM, in MMTEL AS, only deposit two publicly-owned numbers of user.Route and addressing in the IMS Internal call generally all are the publicly-owned numbers with SIP URI form; MGCF is at the publicly-owned number that uses TEL URI form with ext nal network element such as PSTN, SHLR when mutual, and it is mutual that promptly MGCF only uses the publicly-owned number and the SHLR of TELURI form; SSF generally uses the publicly-owned number and the SCP of SIP URI form mutual.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 the calling number in the ticket gathered of PCSCF is that the calling number in the ticket gathered of privately owned number, MMTELAS is publicly-owned number.

This shows; When carrying out service dispense toward IMS; If user's publicly-owned number mark adopts different number form (physical number or logical number) with privately owned number mark, user's the caller demonstration and the calling number form of bill record collection all there is certain influence.So no matter be to adopt the IMS user of new section or mix the IMS user who distributes telephone numbers, the logical number that the essential user of use of E.164 number (comprising private user identity and TEL URI form public subscriber identification) who deposits at each network element of IMS externally announces.

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

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

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

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

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

B, because soft switch and all cross-domain networking of IMS; PSTN or PHS user for the same local network of IMS customer call of certain local network; MGCF will add area code before called number when striking out, the prefix translation table that the result that soft switch could remove to inquire about the SHLR of ownership local network according to the area code of called number, return for SHLR jumps to the ownership local network 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 the IP intercommunication.

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

4) IMS user's's (Xin Kai is perhaps by existing network PSTN migration) E.164 number and existing network PSTN user's logical number is mixed fully and is put, and can continue to enjoy the narrow band service that existing network SCP provides.

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

6) two network elements of MGCF and SSF are wanted the distributing independent signaling point code, and open through signalling route with LSTP respectively.The signalling route of MGCF to the signalling route of office directions such as existing network soft switch and SSF to the SCP office direction all is through the LSTP switching.

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

The existing network business that the IMS network need be inherited mainly comprises two aspects: the one, and succession user's supplementary service, after the user inserted IMS, supplementary service was all realized by MMETL AS network element.The 2nd, inherit user's IN service, for example mix distribute telephone numbers, pre-payment, VPN, one number service, ultra nothings of day wing, two phones just one number etc., after the user inserts IMS, can dock realization with existing network SCP through IM-SSF network element employing Intelligent Network Application Protocol.

Distribute telephone numbers in order to realize that IMS user and arrowband fixed network mix, IMS user need distribute telephone numbers on the SHLR of fixed network and the signatory called intelligent access code that changes net, to realize that overseas user dials the IMS customer call and can be routed to the IMS territory.When IMS user does caller, be whether earlier judge called according to the user data that is disposed on the ENUM is user in the IMS city, the IMS intra domain user is not dialled with regard to not going to inquire about existing network SHLR and route to go out the IMS territory and just can accomplish continuing of calling mutually like this.

1) the customer call IMS user of existing network (new section or mixing are distributed telephone numbers): originating switch is inquiry fixed network SHLR earlier; Afterwards again according to called intelligent access code that the called subscriber contracted; Route the call to the IMS network and accomplish relevant IN service of called IMS user and the professional triggering of MMTEL AS, and it is called to continue.PSTN customer call IMS user's flow process is seen Fig. 2.

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

3) IMS customer call IMS user's flow process is seen 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, the 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

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

A kind of method that on the IMS network, realizes the INAP IN service comprises:

IMS user's IN service triggering rule is kept on the 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 the AccessCode access code is intelligent access code;

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

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

A kind of system that on the IMS network, realizes the INAP IN service comprises:

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 the AccessCode access code is intelligent access code;

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

The present invention provides a kind of method and system that on the IMS network, realize the INAP IN service; After the existing network user inserts IMS; Can realize inheriting existing network user's supplementary service by MMETL AS network element, can through the IM-SSF network element adopt Intelligent Network Application Protocol dock to realize with existing network SCP inherit that the existing network user has like mixing is distributed telephone numbers, pre-payment, VPN, one number service, the sky wing surpass nothing, two phones just one number etc. IN service.

Description of drawings

Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes a part of the present invention, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, does not constitute improper qualification of the present invention.In the accompanying drawings:

Fig. 1 is prior art IMS and existing network related network elements networking sketch map.

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

Fig. 3 is prior art IMS customer call PSTN user's a flow process.

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

Fig. 5 realizes the method flow of INAP IN service for IMS network of the present invention.

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

Fig. 7 realizes the system configuration sketch map of INAP IN service on the IMS network for the present invention.

The triggering flow process of the caller arrowband IN service that Fig. 8 contracts for IMS user of the present invention.

Fig. 9 is the triggering flow process of the ultra no called intelligent service of the IMS+CDMA of the present invention days wing.

Embodiment

For making the object of the invention, technical scheme and advantage clearer, below in conjunction with specific embodiment, and with reference to accompanying drawing, to further explain of the present invention.

IMS utilizes the IN service of Intelligent Network Application Protocol agent triggers fixed network SCP to inherit the IN service of PSTN through the SSF network element.IMS user's arrowband IN service information is signatory in HSS, preservation.Please realize the method for INAP IN service with reference to description of drawings IMS network.

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

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

IMS user's IN service triggering rule is kept on the 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 the AccessCode access code is intelligent access code.Wherein the iFC of calling and called IN service can separate configuration.

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

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

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

SSF earlier obtains access code according to the Route header field in the invite message, then cooperates according to the area code of calling number and IN service access code and analyzes which SCP of use and handle IN service.SSF is exactly area code, the IN service access code according to calling number, the service key of IN service, points to signaling point code (DPC) or the GT sign indicating number of certain SCP (Service Control Point, service control point) again through relevant data configuration.The function of access code is that SSF is arrived in call proceeding, is used for triggering professional; Service key is to be used 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 realizes analyzing which SCP of use according to above-mentioned mode.

For example, two SCP of SCP1 and SCP2 are arranged, it is professional that SCP1 (point coding is 14-40-1) carries the ultra nothing of day wing, SCP2 (point coding is 14-40-2) carries two phones just one number.It wing is ultra not to have that professional service key is 21, access code is 440, and the service key of two phones just one number is 22, access code is 441.The configuration service key is 21 on SSF, access code is 440 to point to 14-40-1, and the configuration service key is 22, access code is 441 to point to 14-40-2.

Again for example; There are SCP1 and SCP2 all to carry the ultra nothing business of day wing; But some place needs to point to SCP1, some local sensing SCP2 that needs; With regard to configurable caller area code be 0595, service key is 21, access code is 440 to point to 14-40-1, the 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 accomplish the triggering of relevant IN service.SSF is just the same for INAP interface and PSTN existing network that IN service triggers, and the calling number of giving SCP is the number of getting in the publicly-owned number E.164 partly.SSF gives the caller and the called number that carry in the message of SCP trigger intelligent business 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 the parameter title is also different, if but whether each manufacturer all has so a parameter control trigger intelligent business be with the area code configuration to be with area code, also have the another one parameter dispose specifically will with area code.

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

Because an IMS system possibly manage a plurality of local networks, the SCP that each local network belonged to or all possible different with a kind of access code of IN service.Professional for intelligent dialing, SSF supports with access code service trigger to be arrived different SCP according to the area code that calling number belonged to.For called intelligent service, SSF supports with access code service trigger to be arrived different SCP according to the area code that called number belonged to.

5) for the estimation that realizes the call delay that fixed network IN service triggering scheme is brought through SSF

Though realize that through SSF the scheme that the fixed network IN service triggers also is that the time of trigger intelligent business and common SSP scheme are basic identical through Intelligent Network Application Protocol visit SCP, because SSF is an IP message to the call path of SCSCF in the SSF scheme; Can be longer slightly than the time delay of common SSP visit SHLR; Several IN services if a user has contracted trigger repeatedly, also can repeatedly repeat the call path of SCSCF to SSF; Shi Yanhui is longer; But generally speaking, SSF to the call path of SCSCF be whole calling procedures 10% less than (less than 2 seconds), the user is difficult to perceive the time delay that call proceeding increases.

6) the nested triggering of calling and called IN service

IMS realizes that business nesting is that S-CSCF is ordered into the business that triggers successively on the different service platform (SIPAS or SCP) according to the business among the iFC; Can flexible configuration; Can trigger the IMS business earlier, also can trigger the fixed network IN service earlier, perhaps IN service is mingled in each AS service trigger.For the business nesting of SCP mode, S-CSCF brings IM-SSF with the different service sign indicating number in order, and IM-SSF triggers professional according to access code again to SCP; Make a call to S-CSCF, and carry current session information and give S-CSCF, S-CSCF keeps this session and triggers the next one more professional according to session information, if it is called to continue without business, flow process is seen shown in Figure 6.

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

Supplementary service is meant that traditional calling transfer, caller demonstration, Call Waiting, calling switching etc. do not need the business (promptly not needing SCP to cooperate) of very complicated business logic support.And IN service is meant the business of more complicated, needs program in machine code that SCP writes some business processing logic and supports processing.The MMTELAS network element itself is exactly IMS user's a supplementary service network element.

Fig. 7 illustrates the present invention realizes the INAP IN service on the IMS network system configuration sketch map.

Through accompanying drawing and embodiment the present invention is further specified below.

(1) the triggering flow process of IMS user's caller arrowband IN service of contracting

The VPN crowd that Fig. 8 forms with IMS user and C network users is the triggering flow process of example caller arrowband IN service when explaining that IMS user does caller.

Process description:

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

2, S-CSCF inquiry HSS obtains calling subscriber 5287001 iFC, comprises the professional corresponding access code 4431 of caller iVPN among the iFC.

3, S-CSCF delivers to IM-SSF according to the information in the iFC with 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 the iVPN business according to access code 4431 to SCP.

5, SCP becomes called small size sign indicating number 1002 into C network No. sign indicating number 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. sign indicating number.

7, S-CSCF delivers to MGCF with calling.

8, MGCF arrives the C net with call proceeding again.

(2) the triggering flow process of IMS user's called arrowband IN service of contracting

1) the triggering flow process of the IMS+CDMA days ultra no called intelligent services of the wing

The ultra SSF completion of not having professional triggering by IMS of the wing in IMS+CDMA days, professional contracting realizes that at HSS the user data configuration of SCP remains unchanged, the user only need the signatory called intelligent access code that changes net on SHLR.When non-IMS intra domain user is called out the IMS user of the ultra nothing of the signatory day wing; Originating switch inquiry SHLR obtains the called intelligent access code that changes net; Route the call in the IMS territory according to changeing the intelligent access code of net afterwards, being surpassed by called day wing of IMS completion does not have continuing of professional triggering and calling.

Fig. 9 is the ultra IMS user's who does not have of the signatory day wing of IMS customer call a flow process.

1, IMS user 52870001 calls out and is signed with the ultra IMS user 52870002 who does not have business of day wing, calls out and delivers to S-CSCF through AGCF or P-CSCF/.

2, S-CSCF inquiry HSS obtains called 5287002 iFC, comprises the ultra access code information 4432 of not having professional correspondence of day wing among the iFC.

3, S-CSCF delivers to IM-SSF according to the information in the iFC with calling and triggers the called day ultra no IN service of the wing.Professional for the ultra nothing of the sky wing, SCSCF is issuing the wing ultra no professional access code 4432 in transparent transmission sky in the INVTIE message of IM-SSF.

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

5, SCP returns the called 5287002 C nets bound from number 189xxxxxxxx and PSTN major number 5287002.

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

7, S-CSCF continues 5287002, and MGCF is delivered in the calling of C net.

8, MGCF is routed to the C net again.

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

The triggering of IMS+PHS two phones just one number business is accomplished by the SSF of IMS, and professional contracting realizes at HSS.Can not be recycled triggering in order to ensure business, the data of IMS+PHS two phones just one number user on SHLR and SCP all will be made an amendment, and SHLR is last to be needed the only signatory called intelligent access code that changes net of handset deletion, while; SCP is last to be needed the handset number changed into changes net intelligent access code+8/7 logical number, and on behalf of IMS user, handset, main frame represent PHS user.

When IMS customer call IMS+PHS two phones just one number user, SCSCF directly according to iFC triggering rule that the called subscriber contracted, to trigger two phones just one number to SSF professional, then SCP issues with two numbers that shake, afterwards SSF continue simultaneously two called.SCSCF can give soft switch through the MGCF route with the pairing number of handset (changeing the intelligent access code+called number of net), and 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 the SHLR of inquiry fixed network earlier; Net called intelligent access code according to the commentaries on classics that the called subscriber contracted again afterwards, route the call to the triggering that the IMS network is accomplished called two phones just one number IN service, and it is called to continue.

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

Claims

1. method that on the IMS network, realizes the INAP IN service comprises:

2. according to the said method that on the IMS network, realizes the INAP IN service of claim 1, cooperate according to the area code of calling number and IN service access code and to analyze employed SCP, comprising:

SSF is 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 sign indicating number of certain SCP through relevant data configuration, confirms as employed SCP.

3. according to the said method that on the IMS network, realizes the INAP IN service of claim 2, comprising:

Professional for intelligent dialing, SSF arrives different SCP with access code with service trigger according to the area code that calling number belonged to;

For called intelligent service, SSF arrives different SCP with access code with service trigger according to the area code that called number belonged to.

4. according to claim 1 or the 2 or 3 said methods that on the IMS network, realize the INAP IN service, use Intelligent Network Application Protocol to accomplish 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. according to claim 1 or 2 or the 3 or 4 said methods that on the IMS network, realize the INAP IN service, also comprise the nested triggering of calling and called IN service:

SCSCF is ordered on the different service platform according to the business among the iFC and triggers professionally successively, and said business platform is SIPAS or SCP platform, trigger earlier IMS professional, or trigger fixed network IN service or IN service earlier and be mixed in each AS business and trigger.

6. system that on the IMS network, realizes the INAP IN service comprises:

7. according to the said system that on the IMS network, realizes the INAP IN service of claim 6; Wherein, Said SSF is according to the service key of the area code of calling number, IN service access code, IN service; Through signaling point code or the GT sign indicating number of relevant certain SCP of data configuration sensing, confirm as employed SCP.

8. according to the said system that on the IMS network, realizes the INAP IN service of claim 7, wherein professional for intelligent dialing, said SSF arrives different SCP with access code with service trigger according to the area code that calling number belonged to; For called intelligent service, SSF arrives different SCP with access code with service trigger according to the area code that called number belonged to.

9. according to claim 6 or the 7 or 8 said systems that on the IMS network, realize the INAP IN service; Wherein, said 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.

10. according to claim 6 or 7 or the 8 or 9 said systems that on the IMS network, realize the INAP IN service; Wherein, Said SCSCF also carries out the nested triggering of calling and called IN service; Be ordered on the different service platform according to the business among the iFC and trigger professionally successively, said business platform is SIPAS or SCP platform, trigger earlier IMS professional, or trigger fixed network IN service or IN service earlier and be mixed in each AS business and trigger.