CN102480716B - The method and system of one number service call routing in IP Multimedia System network - Google Patents

The method and system of one number service call routing in IP Multimedia System network Download PDF

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Publication number
CN102480716B
CN102480716B CN201010571328.0A CN201010571328A CN102480716B CN 102480716 B CN102480716 B CN 102480716B CN 201010571328 A CN201010571328 A CN 201010571328A CN 102480716 B CN102480716 B CN 102480716B
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terminal called
called
terminal
status information
calling
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CN102480716A (en
Inventor
谭朝丽
张小龙
王崇锐
王君庭
宿兴辉
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China Mobile Group Beijing Co Ltd
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China Mobile Group Beijing Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/42229—Personal communication services, i.e. services related to one subscriber independent of his terminal and/or location

Abstract

The invention provides the method and system of one number service call routing in a kind of IP Multimedia System network, belong to communication technical field, described method comprises: the status information of obtaining the first terminal called and/or the second terminal called, described the first terminal called and described the second terminal called are bound with called number in advance, and described called number has been ordered the one number service in IP Multimedia System network; Receive the call request that calling terminal sends to described called number; According to described status information, the call routing of described the first terminal called and/or described the second terminal called is adjusted, in the time carrying out call routing, can effectively reduce taking Internet resources.

Description

The method and system of one number service call routing in IP Multimedia System network
Technical field
The invention belongs to communication technical field, relate in particular to a kind of IMS (IP Multimedia System) networkThe method and system of middle one number service call routing.
Background technology
In the one number service of IMS network, can amplify out IMS net by existing phone number at presentPC software terminal (for example notebook computer) in network, has ordered in IMS network one when calling subscribe calls outWhen the phone number (one number service number) of number logical business, can realize called mobile phone and PC software terminal simultaneouslyRing.
First, introduce the method for one number service call routing in existing IMS network, the method comprisesFollowing steps:
Step 1, calling subscribe trigger business according to O_SCI, dial called number;
Step 2, according to Terminating CAMEL Subscription Information T_CSI, by call request triggers to called SCP (business controlPoint processed);
Step 3, called SCP issue the number of changing CONNECT message, route code RN+ called mobile phone number,Instruct MS C (mobile switching centre) by speech channel by GMSC (GMSC) continue toIn IMS network;
Step 4, GMSC continue speech channel to IMS network according to RN+ called mobile phone number;
Step 5, the number sets that IMS network is corresponding according to called number, complete the ring to PC software terminal,Initiate the callback to GMSC simultaneously, and before calling number, add special prefix;
Step 6, GMSC, according to normal called number, initiate to HLR (attaching position register)The inquiry of MAP (MAP) signaling;
Step 7, GMSC, according to T-CSI, are toggled to SCP by callback, and SCP is according to special before calling numberDifferent prefix, judges that this callback is the callback of IMS network, and instruction GMSC continues according to called number;
Step 8, MSC initiate the calling to called subscriber according to MSRN (mobile station roaming number) number.
From above-mentioned steps 1～8, when terminal called has been ordered the one number service in IMS network, andPC software terminal in IMS network not online time, can cause calling subscribe's waits for too long, while continuingProlong larger.
In existing IMS network in one number service route technology scheme, due to need to be based on calling subscribe'sPhone number is realized the PC software terminal of IMS is called out, and all needs by GSM network (caller useThe network at place, family) in HLR and the cooperation of SCP, call is re-routed, be routed to IMSIn AS (application server) system of network, carrying out two speech channels (GSM network and IMS network) sends out againRise and call out. If when this PC software terminal that has just caused IMS network is online, this speech channel also need to be according toExisting one number service routing mode carries out call routing, and script can carry out route in GSM networkSystem need to be carried out route and could finally be called out single in GSM and two voice bearer networks of IMSCalled mobile phone.
Hence one can see that, in the one number service of existing IMS network, if the PC software terminal of IMSWhen not online, all need to be routed to IMS network, occurred the fearless of IMS Internet resources to take, andAnd be also dual holding for the resource of GSM network. (wherein dual holding comprises the network with IMSThe GMSC that MGW is interconnected, and 2 times of 2 of intelligent network SCP triggerings, HLR are inquired about). AndWhen mobile subscriber uses one number service by statistics, the online situation of the PC software terminal of IMS only accounts at net whole25% of the body time. The called calling that 75% time that this means produces is without being routed in IMS network, in the situation that there is no need, there is the serious waste of carrier network resource.
Summary of the invention
In order to address the above problem, the object of this invention is to provide in a kind of IP Multimedia System network oneThe method and system of number logical service call route, in the time carrying out call routing, can effectively reduce Internet resourcesTake.
In order to achieve the above object, the invention provides one number service in a kind of IP Multimedia System networkThe method of call routing, described method comprises:
Steps A, obtain the status information of the first terminal called and/or the second terminal called, described the first quiltMake terminal and described the second terminal called bind with called number in advance, and described called number is ordered IPOne number service in multi-media subsystem network;
The call request that step B, reception calling terminal send to described called number;
Step C, according to described status information, to described the first terminal called and/or described the second called endThe call routing of end is adjusted.
Preferably, described the first terminal called is positioned at global system for mobile communications network, described the second called endEnd is positioned at IP Multimedia System network, and described step C is specially:
If when the status information of described the second terminal called is current off-line, directly with described the first terminal calledThe mobile switching centre at place establishes call connection, and exhales and be not triggered to IP Multimedia System networkBe route.
Preferably, described mobile switching centre direct and described the first terminal called place establishes call connectionStep comprise:
Obtain the mobile station roaming MSRN of described called number;
According to the mobile station roaming MSRN of described called number, inquire described the first terminal called placeMobile switching centre;
Directly establish call connection with the mobile switching centre at described the first terminal called place.
Preferably, the step of obtaining the status information of described the second terminal called described in comprises:
Status information when described the second terminal called is not online sends to home subscriber server HSS;
The described status information of described the second terminal called is sent to industry by described home subscriber server HSSBusiness control point SCP.
Preferably, described the second terminal called is positioned at IP Multimedia System network, and described step C is concreteComprise:
If the status information of described the first terminal called is current off-line, and the state of described the second terminal calledInformation is current when online, only carries out route for the calling of described the second terminal called, and suppresses describedRoute is carried out in the calling of the first terminal called.
Preferably, the described status information of obtaining respectively described the first terminal called and described the second terminal calledStep comprise:
The status information of described the first terminal called is sent to service control point (SCP);
The status information of described the second terminal called is sent to home subscriber server HSS;
The status information of described the second terminal called is sent to described industry by described home subscriber server HSSBusiness control point SCP.
Preferably, route is carried out in described the calling for described the second terminal called, and is suppressed to describedThe step that route is carried out in the calling of the first terminal called comprises:
Obtain the business information of the one number service of described the second terminal called;
According to described business information, trigger the one number service on one number service application server;
After one number service triggers, described one number service application server enters the calling of described the second terminal calledWalking along the street by, and suppress the calling of described the first terminal called is carried out to route.
Preferably, described method also comprises:
Between described home subscriber server HSS and described service control point (SCP), set up and be used for transmitting instituteState the link of status information.
The present invention also provides the system of one number service call routing in a kind of IP Multimedia System network,Comprise:
State information acquisition device, for obtaining the state letter of the first terminal called and/or the second terminal calledBreath, described the first terminal called and described the second terminal called are bound with called number in advance, and described calledNumber has been ordered the one number service in IP Multimedia System network;
Receiving system, the call request sending to called number for receiving calling terminal;
Call routing adjusting device, for according to described status information, to described the first terminal called and/orThe call routing of described the second terminal called is adjusted.
Preferably, if when the status information of described the second terminal called is current off-line, described call routing is adjustedEngagement positions, for directly establishing call connection with the mobile switching centre at described the first terminal called place, andBe not triggered to IP Multimedia System network and carry out call routing.
Preferably, if the status information of described the first terminal called is current off-line, and described the second called endThe status information of end is current when online, described call routing adjusting device, for only for described the second quiltMake the calling of terminal carry out route, and suppress the calling of described the first terminal called to carry out route.
As shown from the above technical solution, embodiments of the invention have following beneficial effect: in the present embodiment,First obtain the status information of the first terminal called and/or the second terminal called, this first terminal called andThe binding of two terminal calleds and called number, then according to this status information, to the first terminal called and/or theThe call routing of two terminal calleds is adjusted, for example, when PC software terminal in IMS network (is equivalent to theTwo terminal calleds) status information while being current off-line, control and touch by the SCP in GSM intelligent networkBe dealt into the call routing that IMS network carries out PC software terminal, and directly in GMS network, call out called endEnd (being equivalent to the first terminal called). Thereby can reduce calling terminal waits for and has improved time delay in the time calling outWhen PC software terminal is not online in IMS network, as called jointing-success-rate, avoid PC software terminal notTaking IMS network when online.
Brief description of the drawings
Fig. 1 is the method schematic diagram of one number service call routing in IMS network in embodiments of the invention;
Fig. 2 is the method sequential of one number service call routing in IMS network in embodiments of the invention oneFigure;
Fig. 3 is the method sequential chart of the registration of PC software terminal in IMS network in embodiments of the invention one;
Fig. 4 is the method sequential of one number service call routing in IMS network in embodiments of the invention twoFigure;
Fig. 5 is the system schematic of one number service call routing in IMS network in embodiments of the inventionFigure.
Detailed description of the invention
In order to make object, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with realityExecute example and accompanying drawing, the embodiment of the present invention is described in detail. At this, schematic reality of the present inventionExecute example and explanation for explaining the present invention, but not as a limitation of the invention.
Referring to Fig. 1, for the method for one number service call routing in IMS network in embodiments of the invention is shownIntention, the method comprises:
Step 101, obtain the status information of the first terminal called and/or the second terminal called, the first called endEnd and the second terminal called are bound with called number in advance, and called number has been ordered in IMS network No. oneLogical business;
In the present embodiment, calling terminal and the first terminal called can be positioned at 2G network (for example GSM netNetwork) in, the second terminal called is arranged in IMS network, and called number has been ordered one number service in IMS networkBusiness, and the first terminal called and the second terminal called are bound with called number in advance. Namely, orderedAfter one number service, this called number is equivalent to one number service number, due to the first terminal called and second calledThe binding of terminal and called number, therefore in the time that calling terminal is called out this one number service number, can realize first calledThe ring simultaneously of terminal and the second terminal called.
Obtain manner for the status information of the first terminal called can be: when the first terminal called shutdownTime, the first terminal called carries out the renewal of status information on HLR, then by the status information after upgradingSend to the SCP in GSM intelligent network. Certainly do not limit in the present embodiment and obtain the first terminal calledThe mode of status information.
Obtain manner for the status information of the second terminal called can be: the HSS in IMS networkAnd between the SCP in GSM intelligent network, set up link, to obtain the presence information of the second terminal called.Certainly also can adopt other mode to obtain the presence information of the second terminal called. In the present embodimentDo not limit the mode of the presence information of obtaining the second terminal called.
In the present embodiment, this status information comprises: current online and current off-line, and when terminal called is nullifiedOr when overtime off-line, the status information of this terminal called is " current off-line ".
The call request that step 102, reception calling terminal send to called number;
Step 103, according to status information, to the calling of the first terminal called and/or described the second terminal calledRoute is adjusted.
1) if when the status information of the second terminal called obtaining in step 101 is " current off-line ",In step 103, caller MSC can be directly and the mobile switching centre (MSC) at the first terminal called placeEstablish call connection, and be not triggered to the call routing of IMS network.
Now, the step of obtaining the status information of the second terminal called comprises: the first CSCF in IMS networkDescribed in status information when (call conversation control function entity) is not online by the second terminal called sends toHome subscriber server (HSS) in IMS network; Then the home subscriber server in IMS network(HSS) status information of the second terminal called is sent to the service control point (SCP) in GSM network.
2) if having obtained the status information of the first terminal called in step 101 is " current off-line ", the second quiltThe status information of being terminal is during for " current online ", in step 103 can be only in IMS networkRoute is carried out in the calling of the second terminal called, and is suppressed to the calling to the first terminal called in GSM networkCarry out route.
As shown from the above technical solution, in the present embodiment, first obtain the first terminal called and/or secondThe status information of terminal called, this first terminal called and the second terminal called and called number binding, thenAccording to this status information, the call routing of the first terminal called and/or the second terminal called is adjusted,Can effectively avoid, in the call routing process of IMS network one number service, the meaningless of Internet resources being accounted forWith.
Enter as an example of the concrete application scenarios of the method for one number service call routing in this IMS network example belowRow explanation. This scene comprises: terminal called in calling terminal, GSM network (is equivalent to first calledTerminal) and IMS network in PC software terminal (being equivalent to the second terminal called), wherein, called numberOrder one number service in IMS network, this terminal called and PC software terminal and the binding of this called number.
In the present embodiment, in the time that PC software terminal is online, still can adopt the call routing of one number serviceExisting mode is carried out, and is routed to when carrying out terminal called and PC software terminal in IMS network and calls out.
In the present embodiment, in the time that PC software terminal is not online, although this terminal called is at GSM intelligent networkIn ordered the one number service in IMS network, but store in SCP in GSM intelligent networkThe status information of PC software terminal is: current off-line, now, the call routing of one number service just becomesMore, calling will be in the time that GSM intelligent network carries out one number service triggering to IMS network, according to PC soft endHold not online status information to carry out the adjustment of call routing. In this case, only call out at GSM netNetwork carries out, and not in IMS network.
For more clearly explanation, adopt Fig. 2 to illustrate when PC software terminal is not online in the present embodimentCall routing process. Referring to Fig. 2, for one number service in IMS network in embodiments of the invention one is called outThe method sequential chart of route, concrete steps are as follows:
PC software terminal off-line in step 21, IMS network is nullified, and the status information of PC software terminal is passedGive CSCF;
In the present embodiment, the status information of this PC software terminal comprises: current online and current off-line. WhenWhen this PC software terminal cancellation or overtime off-line, the status information of this PC software terminal is: current off-line.
Step 22, CSCF register the status information of PC software terminal to HSS;
In this step, first CSCF sends DiameterSAR (server-assignment request) to HSSMessage, this PC software terminal of notice HSS is registered on CSCF, and this HSS sends Diameter to CSCFSAA (server-assignment answer) message, to complete the state letter of CSCF to HSS registration PC software terminalBreath.
Step 23, HSS and CSCF return to the successful 200OK of PC software terminal off-line to next network element and returnMultiple;
Namely, HSS returns to the successful 200OK of PC software terminal off-line to CSCF and replys, CSCFReturning to the successful 200OK of off-line to PC software terminal replys.
The status information of PC software terminal is sent to the SCP in GSM intelligent network by step 24, HSS;
In the present embodiment, according between the SCP in the HSS in IMS network and GSM intelligent networkInterface specification, HSS, by the status information of PC software terminal, sends to the SCP in GSM intelligent network,SCP in GSM intelligent network is according to the terminal address letter in IMSIMPU (IP multimedia public identity)Breath prefix correspondence goes out the address information of terminal, and the status information of coming according to biography is revised the user in SCPAttribute data;
In the present embodiment, this HSS comprises to SCP transmission data: IMPU, SIP, terminal addressInformation and status information, wherein can to adopt Online to represent current online for status information, and offline represents to work asFront off-line, now, the structure of these data can be expressed as: IMPU:SIP:139AAAAAAAA_SOffine. Certainly do not limit in the present embodiment the concrete structure of these data.
These data can adopt following form storage.
Step 25, calling terminal make a call to called number;
As calling terminal makes a call to the called number of having ordered one number service in IMS network, pass throughThe ownership HLR of inquiry called number, and from HLR, obtain the IN service (IMS that this called number is orderedOne number service in network);
Step 26, to the service attribute of inquiring about called number in the SCP in GSM intelligent network;
In the present embodiment, called HLR is carried out to map instruction inquiry, learn and ordered called intelligent industryBusiness, is then triggered to intelligent network, to the service attribute of inquiring about called number in the SCP in this intelligent network;
Step 27, directly carry out the triggering of IN service in GSM network, and return to the MSRN of called number(mobile station roaming number), and carry out the calling of PC software terminal without being routed to IMS network;
In the present embodiment, called number has been ordered the one number service in IMS network, in stepThe online situation of in 27, one number service being ordered to situation and PC software terminal is made " with judgement ", if " with sentenceDisconnected " result to be 1 (be that terminal called has been ordered the one number service in IMS network, and PC software terminalStatus information be: current online), call out according to existing one number service call routing modeRoute.
Namely, below meeting when two conditions simultaneously, can be according to existing one number service call routingMethod is carried out route. Condition 1) terminal called ordered the one number service in IMS network; Condition 2)The status information of PC software terminal is: current online.
In Fig. 2, because the status information of PC software terminal is " current off-line ", therefore " with judgement "Result be 0, the routing change that now can not carry out one number service triggers, and directly processes GSM netIN service in network;
Step 28, SCP return to the MSRN of called number to caller MSC;
Step 29, inquire the MSC at terminal called place according to the MSRN of called number, with calledMSC establishes call connection.
In step 28～29, caller MSC inquires terminal called place according to the MSRN of called numberMSC, i.e. called MS C then establishes call connection between caller MSC and called MS C.
So far,, when in the not online situation of PC software terminal, terminal called is as called call routing flow processComplete.
In the present embodiment, by building between HSS in the SCP in GSM intelligent network and IMS networkVertical link connection, makes the HSS in IMS network to send the status information of PC software terminal to GSMSCP in intelligent network is when as not online in PC software terminal, according to the status information of this PC software terminal, logicalThe SCP crossing in GSM intelligent network controls the route that is not triggered to IMS network, direct calling GSM networkIn terminal called, thereby while having avoided calling subscribe to call out, wait for time delay, avoided PC software terminal not existWhen line, the network of one number connecting calling takies the generation of situation, avoided equally one number service to HLR,The bilayer of intelligent network SCP, GMSC takies the generation of situation.
Under introducing below, in the present embodiment PC software terminal reach the standard grade or the situation of off-line under, status informationPropelling movement mode, referring to Fig. 3, is the method sequential chart of the registration of PC software terminal in IMS network, specifically stepRapid as follows:
Log-on message is sent to I-CSCF (inquiry-call session control merit by step 31～32, PC software terminalEnergy entity);
Step 33～34, I-CSCF send DiameterUAR (subscriber authorisation) message, HSS to HSSReturn to DiameterUAA (user-authorization-answer) message to I-CSCF;
Step 35, I-CSCF send Register to S-CSCF (service-call session control function entity)(registration) message;
Step 36～37, HSS send DiameterSAR message to S-CSCF, and S-CSCF is to HSSReturn to DiameterSAA message;
Step 38～40, S-CSCF return to 200OK message to I-CSCF, and I-CSCF is to P-CSCF (generationReason-call conversation control function entity) return to 200OK message, P-CSCF returns to 200 to PC software terminalOK message;
Step 41, succeed in registration after, HSS transmits the status information of PC software terminal in 2G intelligent networkSCP;
While succeeding in registration, transmitting data is (IMPU:SIP:139AAAAAAAA_Sonline);
While nullifying successfully, transmitting data is (IMPU:SIP:139AAAAAAAA_Soffline)
In IMS network, in the registration of PC software terminal, user's public identify has been tied to a connectionOn the address of system, at this moment S-CSCF will send server-assignment request (SAR) message as HSS,This user of notice HSS registers on this S-CSCF. Although CSCF quantity crowd in IMS networkMany, PC software terminal may be registered in different CSCF, but belongs at the IMPU of PC software terminalHSS in be the real-time status information of the lower PC software terminal of record.
Therefore, in IMS network, in HSS and GSM intelligent network, between SCP, setting up real-time link connectsConnect, this link is for transmitting state information, and in the time that the registration of PC software terminal is reached the standard grade, HSS is to GSMThe data that intelligent network SCP transmits are: IMPU:SIP: phone number _ s and status information: online; WhenWhen PC software terminal is nullified off-line, the data that HSS transmits to GSM intelligent network SCP are: IMPU:SIP: phone number _ s and status information: offline.
Introduce above when in the situation of the cancellation of PC software terminal or overtime off-line, adjusted one number connecting calling routeEmbodiment. Introduce when terminal called shutdown more below, but PC software terminal is when online, adjusts one number service and exhalesBe the embodiment of route.
In current 2G network, in terminal called shutdown, MSC controls terminal called after shutdownCarry out position renewal, now the IMSI of this called number of mark (international mobile subscriber identity) in HLRFor Poweroff.
In the present embodiment, can be for the signaling of the 2G network of one number service and IMS network, expansionA field " mobile_reachable " that one number service number can reach, corresponding field asMobile_reachable=1, terminal called can reach; As mobile_reachable=0, terminal called is unreachable.When the IMSI of the one number service number in corresponding HLR is Poweroff, mobile_reachable can be set to0。
When having found in HLR according to called number while ordering the one number service having in IMS network, canCall routing is adjusted as follows: to carrying out business triggering in the SCP in 2G intelligent network when, needTo in HLR, inquire about the presence of terminal called, as the presence information of this terminal called is: whenBefore when online (for example, while shutdown), be 0 by mobile_reachable set, and pass through signalling system No.7This field is passed to the HSS in IMS network, in the time that call routing arrives IMS network, in IMS networkOne number service platform AS can determine not send again calling back to GSM network according to this field, therebyThe Internet resources in GSM network are further saved.
For more clearly explanation, adjust when call routing in the situation of terminal called shutdown with figure below explanationWhole scheme. Referring to Fig. 4, it is one number service call routing in IMS network in embodiments of the invention twoMethod sequential chart, concrete steps are as follows:
Step 41, the registration of PC software terminal log in, and log-on message sends CSCF to;
Step 42～43, CSCF register the status information of PC software terminal to HSS, set is current online;
Step 44～45, HSS and CSCF return to next network element the 200OK succeeding in registration and reply;
Step 46, according to the interface specification between HSS in IMS network and GSM intelligent network SCP, HSSThe status information of PC software terminal is sent to the SCP in GSM intelligent network, and SCP is according to IMSIMPUIn termination number prefix correspondence go out termination number, and in the status information of coming according to biography amendment SCPUAD;
Step 47, the shutdown of one number service terminal called, terminal called carries out position renewal, and called number is returnedIn the HLR belonging to, IMSI is set to poweroff;
Step 48, as calling terminal initiate to ordered one number service called number call out;
The ownership HLR of step 49, inquiry called number, and from HLR, obtain this number and ordered No. oneLogical business, further inquires about the IMSI of this called number simultaneously, as is poweroff, by the expansion of signalingExhibition position mobile_reachable set is 0;
Step 50, called number have been ordered one number service, and one number service is ordered to situation and PCThe online situation of software terminal is made " with judgement ", and the result of " with judging " is 1, call out to IMS network,In calling, need on the field band of mobile_reachable.
Step 51, DiameterSAR: the business information of obtaining one number service;
Step 52, DiameterLIA: the business information of returning to one number service;
Step 53, according to service profile trigger one number service;
Step 54, due to mobile_reachable=0 in the signaling under 2G Netowrk tape, can a pinPC software terminal in IMS network is carried out to call routing, and be suppressed to 2G network, terminal called is carried outCall routing.
So far, complete to the call routing flow process of one number service in terminal called shutdown situation.
Also provide in an embodiment of the present invention one number service in a kind of IP Multimedia System network to call outThe system of route, referring to Fig. 5, is one number service call routing in IMS network in embodiments of the inventionSystem schematic, this system comprises:
State information acquisition device 61, for obtaining the state of the first terminal called and/or the second terminal calledInformation, described the first terminal called and described the second terminal called are bound with called number in advance, and described quiltThe code of calling out the numbers has been ordered the one number service in IP Multimedia System network;
Receiving system 62, the call request sending to called number for receiving calling terminal;
Call routing adjusting device 63, for according to described status information, to described the first terminal called and/Or the call routing of described the second terminal called is adjusted.
If when the status information of described the second terminal called is current off-line, described call routing adjusting device63, for directly establishing call connection with the mobile switching centre at described the first terminal called place, and do not touchBe dealt into IP Multimedia System network and carry out call routing.
If the status information of described the first terminal called is current off-line, and the state of described the second terminal calledInformation is current when online, described call routing adjusting device 63, for only for described the second called endRoute is carried out in the calling of end, and suppresses the calling of described the first terminal called to carry out route.
As shown from the above technical solution, embodiments of the invention have following beneficial effect: in the present embodiment,First obtain the status information of the first terminal called and/or the second terminal called, this first terminal called andThe binding of two terminal calleds and called number, then according to this status information, to the first terminal called and/or theThe call routing of two terminal calleds is adjusted, for example, when PC software terminal in IMS network (is equivalent to theTwo terminal calleds) status information while being current off-line, control and touch by the SCP in GSM intelligent networkBe dealt into the call routing that IMS network carries out PC software terminal, and directly in GMS network, call out called endEnd (being equivalent to the first terminal called). Thereby can reduce calling terminal waits for and has improved time delay in the time calling outWhen PC software terminal is not online in IMS network, as called jointing-success-rate, avoid PC software terminal notTaking IMS network when online.
The above is only the preferred embodiment of the present invention, it should be pointed out that common for the artTechnical staff, under the premise without departing from the principles of the invention, can also make some improvements and modifications,These improvements and modifications also should be considered as protection scope of the present invention.

Claims (4)

1. a method for one number service call routing in IP Multimedia System network, is characterized in that, described method comprises:
Steps A, obtain the status information of the first terminal called and the second terminal called, described the first terminal called and described the second terminal called in advance with called number binding, and described called number has been ordered the one number service in IP Multimedia System network;
The call request that step B, reception calling terminal send to described called number;
Step C, according to described status information, the call routing of described the first terminal called and described the second terminal called is adjusted;
The step of the described status information of obtaining described the first terminal called and described the second terminal called comprises:
The status information of described the first terminal called is sent to service control point (SCP);
The status information of described the second terminal called is sent to home subscriber server HSS;
The status information of described the second terminal called is sent to described service control point (SCP) by described home subscriber server HSS;
Described the second terminal called is positioned at IP Multimedia System network, and described step C specifically comprises:
If the status information of described the first terminal called is current off-line, and the status information of described the second terminal called is current when online, only carries out route for the calling of described the second terminal called, and suppresses the calling of described the first terminal called to carry out route.
2. method according to claim 1, is characterized in that, route is carried out in described the calling for described the second terminal called, and is suppressed to the step that the calling of described the first terminal called is carried out to route and comprises:
Obtain the business information of the one number service of described the second terminal called;
According to described business information, trigger the one number service on one number service application server;
After one number service triggers, described one number service application server carries out route to the calling of described the second terminal called, and suppresses the calling of described the first terminal called to carry out route.
3. method according to claim 1, is characterized in that, described method also comprises:
Between described home subscriber server HSS and described service control point (SCP), set up the link for transmitting described status information.
4. a system for one number service call routing in IP Multimedia System network, is characterized in that, comprising:
State information acquisition device, for obtaining the status information of the first terminal called and the second terminal called, described the first terminal called and described the second terminal called are bound with called number in advance, and described called number has been ordered the one number service in IP Multimedia System network;
Receiving system, the call request sending to called number for receiving calling terminal;
Call routing adjusting device, for according to described status information, adjusts the call routing of described the first terminal called and described the second terminal called;
Described state information acquisition device is further used for the status information of described the first terminal called to send to service control point (SCP); The status information of described the second terminal called is sent to home subscriber server HSS, and the status information of described the second terminal called is sent to described service control point (SCP) by described home subscriber server HSS;
If the status information of described the first terminal called is current off-line, and the status information of described the second terminal called is current when online, described call routing adjusting device, for only carrying out route for the calling of described the second terminal called, and suppress the calling of described the first terminal called to carry out route;
Described call routing adjusting device, if be current off-line specifically for the status information of described the first terminal called, and the status information of described the second terminal called is current when online, only carry out route for the calling of described the second terminal called, and suppress the calling of described the first terminal called to carry out route.
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