CN102480716A - Call routing method and system for number one service in IP (Internet Protocol) multimedia subsystem network - Google Patents
Call routing method and system for number one service in IP (Internet Protocol) multimedia subsystem network Download PDFInfo
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- CN102480716A CN102480716A CN2010105713280A CN201010571328A CN102480716A CN 102480716 A CN102480716 A CN 102480716A CN 2010105713280 A CN2010105713280 A CN 2010105713280A CN 201010571328 A CN201010571328 A CN 201010571328A CN 102480716 A CN102480716 A CN 102480716A
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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Abstract
The invention provides a call routing method and system for a number one service in an IP (Internet Protocol) multimedia subsystem network, belonging to the technical field of communication. The method comprises the following steps of: obtaining state information of a first called terminal and/or a second called terminal, wherein the first called terminal and the second called terminal are pre-bound by a called number; and the called number orders the number one service in the IP multimedia subsystem network; receiving a call request sent to the called number; and adjusting call routing of the first called terminal and/or the second called terminal according to the state information. According to the call routing method and system disclosed by the invention, the occupation on network resources can be effectively reduced when route calling is carried out.
Description
Technical field
The invention belongs to communication technical field, relate in particular to the method and system of one number service calling route in a kind of IMS (IP Multimedia System) network.
Background technology
At present in the one number service of IMS network; Can amplify out the PC software terminal (for example notebook computer) in the IMS network through existing phone number; When the calling subscriber calls out the phone number (one number service number) of having ordered one number service in the IMS network, can realize the ring simultaneously of called mobile phone and PC software terminal.
At first, introduce the method for one number service calling route in the existing IMS network, this method comprises the steps:
Step 1, calling subscriber trigger professional according to O_SCI, dial called number;
Step 2, according to Terminating CAMEL Subscription Information T_CSI, with call request triggers to called SCP (service control point);
Step 3, called SCP issue the number of changing CONNECT message, route code RN+ called mobile phone number, and instruct MS C (mobile switching centre) continues speech channel to the IMS network through GMSC (GMSC);
Step 4, GMSC continue speech channel to the IMS network according to RN+ called mobile phone number;
Step 5, the corresponding number sets of the network based called number of IMS are accomplished the ring to the PC software terminal, initiate the callback to GMSC simultaneously, and before calling number, add special prefix;
Step 6, GMSC initiate the inquiry of MAP (MAP) signaling according to normal called number to HLR (attaching position register);
Step 7, GMSC are toggled to SCP according to T-CSI with callback, SCP according to calling number before special prefix, judge that this callback is the callback of IMS network, the indication GMSC continue according to called number;
Step 8, MSC initiate the calling to the called subscriber according to MSRN (travelling carriage roaming number) number.
Can know by above-mentioned steps 1～8, when terminal called has been ordered the one number service in the IMS network, and the PC software terminal in the IMS network not online the time, can cause calling subscriber's waits for too long, the time delay that continues is bigger.
In the existing IMS network in the one number service route technology scheme; Owing to need realize the PC software terminal of IMS is called out based on calling subscriber's phone number; All need pass through HLR and the cooperation of SCP in the GSM network (calling subscriber place network); Route is again carried out in conversation, be routed to and carry out two speech channels (GSM network and IMS network) in AS (application server) system of IMS network again and make a call.When if this has just caused the PC software terminal of IMS network not online; This speech channel also need be called out route according to existing one number service routing mode; And script can carry out the system of route in the GSM network, need in GSM and two voice bearer networks of IMS, carry out route and could finally call out single called mobile phone.
Hence one can see that, in the one number service of existing IMS network, if when the PC software terminal of IMS is not online, all need be routed to the IMS network, occurred the fearless of IMS Internet resources taken, and also be dual holding for the resource of GSM network.(wherein dual holding comprises the interconnected GMSC with IMS network MGW, and to 2 triggerings of intelligent network SCP, 2 inquiries of HLR).And when the statistics mobile subscriber used one number service, the online situation of the PC software terminal of IMS only accounted in 25% of the whole time of net.The called calling that 75% time that this means produces need not to be routed in the IMS network, the serious waste of carrier network resource under situation about there is no need, occurred.
Summary of the invention
In order to address the above problem, the purpose of this invention is to provide the method and system of one number service calling route in a kind of IP Multimedia System network, when calling out route, can effectively reduce taking to Internet resources.
In order to achieve the above object, the present invention provides the method for one number service calling route in a kind of IP Multimedia System network, and said method comprises:
Steps A, obtain the state information of first terminal called and/or second terminal called, said first terminal called and said second terminal called are bound with called number in advance, and said called number has been ordered the one number service in the IP Multimedia System network;
The call request that step B, reception calling terminal send to said called number;
Step C, according to said state information, the calling route of said first terminal called and/or said second terminal called is adjusted.
Preferably, said first terminal called is positioned at the global system for mobile communications network, and said second terminal called is positioned at the IP Multimedia System network, and said step C is specially:
If when the state information of said second terminal called is current off-line, directly sets up calling and be connected, do not call out route and be not triggered to the IP Multimedia System network with the mobile switching centre at said first terminal called place.
Preferably, said directly foundation with the mobile switching centre at said first terminal called place called out step of connecting and comprised:
Obtain the travelling carriage roaming number MSRN of said called number;
According to the travelling carriage roaming number MSRN of said called number, inquire the mobile switching centre at said first terminal called place;
Directly set up to call out and be connected with the mobile switching centre at said first terminal called place.
Preferably, the said step of obtaining the state information of said second terminal called comprises:
State information with said second terminal called when not online sends to home subscriber server HSS;
Said home subscriber server HSS sends to the service control point (SCP) with the said state information of said second terminal called.
Preferably, said second terminal called is positioned at the IP Multimedia System network, and said step C specifically comprises:
If the state information of said first terminal called is current off-line, and the state information of said second terminal called is only carried out route to the calling of said second terminal called, and is suppressed route is carried out in the calling of said first terminal called when being current online.
Preferably, the said step of obtaining the state information of said first terminal called and said second terminal called respectively comprises:
The state information of said first terminal called is sent to the service control point (SCP);
The state information of said second terminal called is sent to home subscriber server HSS;
Said home subscriber server HSS sends to said service control point (SCP) with the state information of said second terminal called.
Preferably, route is carried out in said the calling to said second terminal called, and is suppressed to the step that route is carried out in the calling of said first terminal called and comprises:
Obtain the business information of the one number service of said second terminal called;
According to said business information, trigger the one number service on the one number service application server;
After one number service triggered, said one number service application server carried out route to the calling of said second terminal called, and suppressed route is carried out in the calling of said first terminal called.
Preferably, said method also comprises:
Between said home subscriber server HSS and said service control point (SCP), set up the link that is used to transmit said state information.
The present invention also provides the system of one number service calling route in a kind of IP Multimedia System network, comprising:
The state information acquisition device; Be used to obtain the state information of first terminal called and/or second terminal called; Said first terminal called and said second terminal called are bound with called number in advance, and said called number has been ordered the one number service in the IP Multimedia System network;
Receiving system, be used to receive the call request that calling terminal sends to called number;
Call out the route adjusting device, be used for, the calling route of said first terminal called and/or said second terminal called is adjusted according to said state information.
Preferably; When if the state information of said second terminal called is current off-line; Said calling route adjusting device is used for directly setting up to call out with the mobile switching centre at said first terminal called place being connected, and does not call out route and be not triggered to the IP Multimedia System network.
Preferably; If the state information of said first terminal called is current off-line; And when the state information of said second terminal called is current online; Said calling route adjusting device is used for only carrying out route to the calling of said second terminal called, and suppresses route is carried out in the calling of said first terminal called.
Can know by technique scheme; Embodiments of the invention have following beneficial effect: in the present embodiment; At first obtain the state information of first terminal called and/or second terminal called; This first terminal called and second terminal called and called number are bound; According to this state information, the calling route of first terminal called and/or second terminal called is adjusted then, for example when the state information of the PC software terminal in the IMS network (being equivalent to second terminal called) is current off-line; Be not triggered to the calling route that the IMS network carries out the PC software terminal through the control of the SCP in the GSM intelligent network, and directly in the GMS network, call out terminal called (being equivalent to first terminal called).Thereby can reduce calling terminal wait time delay when calling out, improve when the PC software terminal is not online in the IMS network as called jointing-success-rate taking the IMS network when having avoided the PC software terminal not online.
Description of drawings
Fig. 1 be in the embodiments of the invention in the IMS network one number service call out the method sketch map of route;
Fig. 2 be in the embodiments of the invention one in the IMS network one number service call out the method sequential chart of route;
Fig. 3 is the process registration sequential chart of PC software terminal in the IMS network in the embodiments of the invention one;
Fig. 4 be in the embodiments of the invention two in the IMS network one number service call out the method sequential chart of route;
Fig. 5 be in the embodiments of the invention in the IMS network one number service call out the system schematic figure of route.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention is clearer,, the embodiment of the invention is done explanation in further detail below in conjunction with embodiment and accompanying drawing.At this, illustrative examples of the present invention and explanation are used to explain the present invention, but not as to qualification of the present invention.
Referring to Fig. 1, call out the method sketch map of route for one number service in the IMS network in the embodiments of the invention, this method comprises:
In the present embodiment; The calling terminal and first terminal called can be arranged in 2G network (for example GSM network); Second terminal called is arranged in the IMS network, and called number has been ordered one number service in the IMS network, and first terminal called and second terminal called are bound with called number in advance.Just; After having ordered one number service, this called number is equivalent to the one number service number, because first terminal called and second terminal called and called number are bound; Therefore when calling terminal is called out this one number service number, can realize the ring simultaneously of first terminal called and second terminal called.
Obtain manner for the state information of first terminal called can be: when first terminal called shut down, first terminal called carried out the renewal of state information on HLR, and the state information after will upgrading then sends to the SCP in the GSM intelligent network.Certainly do not limit the mode of the state information of obtaining first terminal called in the present embodiment.
Obtain manner for the state information of second terminal called can be: set up link between the SCP in HSS in the IMS network and the GSM intelligent network, to obtain the presence information of second terminal called.Certainly also can adopt other mode to obtain the presence information of second terminal called.Do not limit the mode of the presence information of obtaining second terminal called in the present embodiment.
In the present embodiment, this state information comprises: current online and current off-line, when terminal called cancellation or overtime off-line, the state information of this terminal called is " a current off-line ".
The call request that step 102, reception calling terminal send to called number;
1) if the state information of second terminal called that in step 101, obtains during for " current off-line "; Caller MSC can directly set up to call out with the mobile switching centre (MSC) at first terminal called place and be connected in step 103, and is not triggered to the calling route of IMS network.
At this moment, the step of obtaining the state information of second terminal called comprises: at first the state information when not online sends to the home subscriber server (HSS) in the said IMS network to the CSCF (call conversation control function entity) in the IMS network with second terminal called; Home subscriber server (HSS) in the IMS network sends to the Service Control Point in the GSM network with the state information of second terminal called then.
2) be " current off-line " if obtained the state information of first terminal called in the step 101; When the state information of second terminal called is " current online "; In step 103, can only carry out route, and be suppressed in the GSM network calling and carry out route first terminal called to the calling of second terminal called in the IMS network.
Can know by technique scheme; In the present embodiment, at first obtain the state information of first terminal called and/or second terminal called, this first terminal called and second terminal called and called number are bound; Then according to this state information; Calling route to first terminal called and/or second terminal called is adjusted, and can effectively avoid in the calling routing procedure of IMS network one number service, the meaningless of Internet resources being taken.
Concrete application scenarios with the method for one number service calling route in this IMS network is that example describes below.This scene comprises: the PC software terminal (being equivalent to second terminal called) in terminal called in calling terminal, the GSM network (being equivalent to first terminal called) and the IMS network; Wherein, Called number has been ordered one number service in the IMS network, and this terminal called and PC software terminal and this called number are bound.
In the present embodiment, when the PC software terminal is online, still can adopt existing mode to carry out, promptly be routed to when carrying out terminal called and PC software terminal in the IMS network and call out the calling route of one number service.
In the present embodiment; When the PC software terminal was not online, although this terminal called has been ordered the one number service in the IMS network in the GSM intelligent network, the state information of the PC software terminal of storing among the SCP in the GSM intelligent network was: current off-line; At this moment; The calling route of one number service just changes, and calling will be called out the adjustment of route according to the not online state information of PC software terminal when the GSM intelligent network carries out the one number service triggering to the IMS network.In this case, only call out and carry out at the GSM network, and not in the IMS network.
For more clearly explanation, adopt Fig. 2 that the calling routing procedure when the PC software terminal is not online in the present embodiment is described.Referring to Fig. 2, call out the method sequential chart of route for one number service in the IMS network in the embodiments of the invention one, concrete steps are following:
PC software terminal off-line in step 21, the IMS network is nullified, and sends the state information of PC software terminal to CSCF;
In the present embodiment, the state information of this PC software terminal comprises: current online and current off-line.When this PC software terminal cancellation or overtime off-line, the state information of this PC software terminal is: current off-line.
Step 22, CSCF register the state information of PC software terminal to HSS;
In this step; CSCF at first sends Diameter SAR (server-assignment request) message to HSS; This PC software terminal of notice HSS is registered on CSCF, and this HSS sends DiameterSAA (server-assignment answer) message to CSCF, to accomplish the state information of CSCF to HSS registration PC software terminal.
Step 23, HSS and CSCF return the successful 200OK of PC software terminal off-line to next network element and reply;
Just, HSS returns the successful 200OK of PC software terminal off-line to CSCF and replys, and CSCF returns the successful 200OK of off-line to the PC software terminal and replys.
Step 24, HSS send to the SCP in the GSM intelligent network with the state information of PC software terminal;
In the present embodiment; According to the interface specification between the SCP in HSS in the IMS network and the GSM intelligent network; HSS is with the state information of PC software terminal; Send to the SCP in the GSM intelligent network, the SCP in the GSM intelligent network goes out the address information at terminal according to the terminal address information prefix correspondence among the IMS IMPU (IP multimedia public identity), and revises the UAD among the SCP according to the state information that biography is come;
In the present embodiment; This HSS transmits in the data to SCP and comprises: IMPU, SIP, terminal address information and state information; Wherein state information can adopt Online to represent current online; Offline representes current off-line, and at this moment, the structure of these data can be expressed as: IMPU:SIP:139AAAAAAAA_Soffine.Certainly do not limit the concrete structure of these data in the present embodiment.
These data can adopt following format.
Step 25, calling terminal make a call to called number;
Called number like calling terminal one number service in having ordered the IMS network makes a call, and through the ownership HLR of inquiry called number, and from HLR, obtains the IN service (one number service in the IMS network) that this called number is ordered;
The service attribute of inquiry called number among step 26, the SCP in the GSM intelligent network;
In the present embodiment, called HLR is carried out map instruction inquiry, learn and ordered called intelligent service, be triggered to intelligent network then, the service attribute of inquiry called number among the SCP in this intelligent network;
Step 27, directly carry out the triggering of IN service in the GSM network, and return the MSRN (travelling carriage roaming number) of called number, carry out the PC software terminal and call out and need not to be routed to the IMS network;
In the present embodiment; Called number has been ordered the one number service in the IMS network; The online situation of in step 27, one number service being ordered situation and PC software terminal is made " with judging "; If the result of " with judge " is 1 (be that terminal called has been ordered the one number service in the IMS network, and the state information of PC software terminal to be: current online), then call out routing mode according to existing one number service and call out route.
Just, when satisfying following two conditions simultaneously, can carry out route according to existing one number service call route method.Condition 1) terminal called has been ordered the one number service in the IMS network; Condition 2) state information of PC software terminal is: current online.
In Fig. 2, because the state information of PC software terminal is " a current off-line ", therefore the result of " with judging " is 0, and the routing change that can not carry out one number service this moment triggers, and directly handles the IN service in the GSM network;
Step 28, SCP return the MSRN of called number for caller MSC;
Step 29, inquire the MSC at terminal called place, set up to call out with called MS C and be connected according to the MSRN of called number.
In step 28～29, caller MSC inquires the MSC that terminal called belongs to according to the MSRN of called number, and promptly called MS C sets up between caller MSC and called MS C then and calls out connection.
So far, under the not online situation of PC software terminal, terminal called finishes as called calling route flow process.
In the present embodiment, connect, make that the HSS in the IMS network can send the state information of PC software terminal to the SCP in the GSM intelligent network through setting up link in SCP in the GSM intelligent network and the IMS network between the HSS; Like the PC software terminal when not online; According to the state information of this PC software terminal, control the route that is not triggered to the IMS network through the SCP in the GSM intelligent network, the terminal called in the direct calling GSM network; Thereby wait time delay when having avoided the calling subscriber to call out; When having avoided the PC software terminal not online, the network of one number connecting calling takies the generation of situation, has avoided one number service the bilayer of HLR, intelligent network SCP, GMSC to be taken the generation of situation equally.
Introduce below down, in the present embodiment the PC software terminal reach the standard grade or the situation of off-line under, the propelling movement mode of state information referring to Fig. 3, is the process registration sequential chart of PC software terminal in the IMS network, concrete steps are following:
Step 31～32, PC software terminal send to I-CSCF (interrogation-call session control function entity) with log-on message;
Step 41, succeed in registration after, HSS transmits the state information of PC software terminal and gives the SCP in the 2G intelligent network;
When succeeding in registration, transmitting data is (IMPU:SIP:139AAAAAAAA_S online);
When nullifying successfully, transmitting data is (IMPU:SIP:139AAAAAAAA_S offline)
In the registration of PC software terminal, user's public identify has been tied on the address of a contact in the IMS network, and at this moment S-CSCF will look like HSS send server request for allocation (SAR) message, and this user of notice HSS registers on this S-CSCF.Although CSCF One's name is legion in the IMS network, the PC software terminal possibly registered in different CSCF, is the state information of PC software terminal under the record in real time in the HSS that IMPU belonged to of PC software terminal.
Therefore; In the IMS network, setting up real-time link in HSS and the GSM intelligent network between the SCP connects; This link is used for transmitting state information, and when the registration of PC software terminal was reached the standard grade, HSS to the data that the GSM intelligent network SCP transmits was: IMPU:SIP: phone number _ s and state information: online; When the PC software terminal was nullified off-line, HSS to the data that the GSM intelligent network SCP transmits was: IMPU:SIP: phone number _ s and state information: offline.
Introduced under the situation of cancellation of PC software terminal or overtime off-line the embodiment of adjustment one number connecting calling route above.Introduce again below when the terminal called shutdown, but the PC software terminal is when online the embodiment of adjustment one number connecting calling route.
In the current 2G network, in the terminal called shutdown, MSC control terminal called upgrades at the laggard line position of shutdown, and this moment, the IMSI (international mobile subscriber identity) of this called number of mark in HLR was Power off.
In the present embodiment, can expand the field " mobile_reachable " that an one number service number can reach to the 2G network of one number service and the signaling of IMS network, corresponding field such as mobile_reachable=1, terminal called can reach; Like mobile_reachable=0, terminal called is unreachable.When the IMSI of the one number service number among the corresponding HLR was Power off, mobile_reachable can be set to 0.
When having found in HLR according to called number when ordering the one number service that has in the IMS network; Can adjust as follows calling out route: when carrying out service trigger among the SCP in the 2G intelligent network; Need in HLR, inquire about the presence of terminal called; Presence information like this terminal called is: current when not online (when for example shutting down); Be 0 then, and this field passed to the HSS in the IMS network, when calling is routed to the IMS network through signalling system No.7 with mobile_reachable set; One number service platform AS in the IMS network can will not call out according to this field decision and send the GSM network again back to, thereby further save the Internet resources in the GSM network.
For more clearly explanation, under the situation of terminal called shutdown, call out the scheme of route adjustment with figure below explanation.Referring to Fig. 4, call out the method sequential chart of route for one number service in the IMS network in the embodiments of the invention two, concrete steps are following:
Step 41, the registration of PC software terminal are landed, and log-on message sends CSCF to;
Step 46, according to the interface specification between HSS in the IMS network and the GSM intelligent network SCP; HSS sends to the SCP in the GSM intelligent network with the state information of PC software terminal; SCP goes out termination number according to the termination number prefix correspondence among the IMS IMPU, and revises the UAD among the SCP according to the state information that biography is come;
Step 47, the shutdown of one number service terminal called, terminal called carries out the position to be upgraded, and IMSI among the HLR of called number ownership is changed to power off;
Step 48, initiate the called number of having ordered one number service is called out like calling terminal;
The ownership HLR of step 49, inquiry called number, and this number of acquisition has been ordered one number service from HLR, further inquires about the IMSI of this called number simultaneously, as is power off, then the extension bits mobile_reachable set with signaling is 0;
Step 50, called number have been ordered one number service; One number service is ordered situation and the online situation work of PC software terminal " with judging "; The result of " with judge " is 1, calls out to the IMS network, need field band in the calling with mobile_reachable on.
Step 53, trigger one number service according to service profile;
Step 54, because mobile_reachable=0 in the signaling under the 2G Netowrk tape, the PC software terminal that then can only be directed against in the IMS network called out route, and be suppressed to the 2G network terminal called is called out route.
So far, the calling route flow process to one number service under the terminal called shutdown situation finishes.
The system of one number service calling route in a kind of IP Multimedia System network also is provided in an embodiment of the present invention, referring to Fig. 5, is the system schematic that one number service is called out route in the IMS network in the embodiments of the invention, and this system comprises:
State information acquisition device 61; Be used to obtain the state information of first terminal called and/or second terminal called; Said first terminal called and said second terminal called are bound with called number in advance, and said called number has been ordered the one number service in the IP Multimedia System network;
Receiving system 62, be used to receive the call request that calling terminal sends to called number;
Call out route adjusting device 63, be used for, the calling route of said first terminal called and/or said second terminal called is adjusted according to said state information.
When if the state information of said second terminal called is current off-line; Said calling route adjusting device 63; Be used for directly setting up to call out being connected, do not call out route and be not triggered to the IP Multimedia System network with the mobile switching centre at said first terminal called place.
If the state information of said first terminal called is current off-line; And when the state information of said second terminal called is current online; Said calling route adjusting device 63; Be used for only carrying out route, and suppress route is carried out in the calling of said first terminal called to the calling of said second terminal called.
Can know by technique scheme; Embodiments of the invention have following beneficial effect: in the present embodiment; At first obtain the state information of first terminal called and/or second terminal called; This first terminal called and second terminal called and called number are bound; According to this state information, the calling route of first terminal called and/or second terminal called is adjusted then, for example when the state information of the PC software terminal in the IMS network (being equivalent to second terminal called) is current off-line; Be not triggered to the calling route that the IMS network carries out the PC software terminal through the control of the SCP in the GSM intelligent network, and directly in the GMS network, call out terminal called (being equivalent to first terminal called).Thereby can reduce calling terminal wait time delay when calling out, improve when the PC software terminal is not online in the IMS network as called jointing-success-rate taking the IMS network when having avoided the PC software terminal not online.
The above only is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; Can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.
Claims (11)
1. one number service is called out the method for route in the IP Multimedia System network, it is characterized in that said method comprises:
Steps A, obtain the state information of first terminal called and/or second terminal called, said first terminal called and said second terminal called are bound with called number in advance, and said called number has been ordered the one number service in the IP Multimedia System network;
The call request that step B, reception calling terminal send to said called number;
Step C, according to said state information, the calling route of said first terminal called and/or said second terminal called is adjusted.
2. method according to claim 1 is characterized in that, said first terminal called is positioned at the global system for mobile communications network, and said second terminal called is positioned at the IP Multimedia System network, and said step C is specially:
If when the state information of said second terminal called is current off-line, directly sets up calling and be connected, do not call out route and be not triggered to the IP Multimedia System network with the mobile switching centre at said first terminal called place.
3. method according to claim 2 is characterized in that, the mobile switching centre at said direct and said first terminal called place sets up the calling step of connecting and comprises:
Obtain the travelling carriage roaming number MSRN of said called number;
According to the travelling carriage roaming number MSRN of said called number, inquire the mobile switching centre at said first terminal called place;
Directly set up to call out and be connected with the mobile switching centre at said first terminal called place.
4. method according to claim 2 is characterized in that, the said step of obtaining the state information of said second terminal called comprises:
State information with said second terminal called when not online sends to home subscriber server HSS;
Said home subscriber server HSS sends to the service control point (SCP) with the said state information of said second terminal called.
5. method according to claim 1 is characterized in that, said second terminal called is positioned at the IP Multimedia System network, and said step C specifically comprises:
If the state information of said first terminal called is current off-line, and the state information of said second terminal called is only carried out route to the calling of said second terminal called, and is suppressed route is carried out in the calling of said first terminal called when being current online.
6. method according to claim 5 is characterized in that, the said step of obtaining the state information of said first terminal called and said second terminal called respectively comprises:
The state information of said first terminal called is sent to the service control point (SCP);
The state information of said second terminal called is sent to home subscriber server HSS;
Said home subscriber server HSS sends to said service control point (SCP) with the state information of said second terminal called.
7. method according to claim 6 is characterized in that, route is carried out in said the calling to said second terminal called, and is suppressed to the step that route is carried out in the calling of said first terminal called and comprises:
Obtain the business information of the one number service of said second terminal called;
According to said business information, trigger the one number service on the one number service application server;
After one number service triggered, said one number service application server carried out route to the calling of said second terminal called, and suppressed route is carried out in the calling of said first terminal called.
8. according to claim 4 or 6 described methods, it is characterized in that said method also comprises:
Between said home subscriber server HSS and said service control point (SCP), set up the link that is used to transmit said state information.
9. one number service is called out the system of route in the IP Multimedia System network, it is characterized in that, comprising:
The state information acquisition device; Be used to obtain the state information of first terminal called and/or second terminal called; Said first terminal called and said second terminal called are bound with called number in advance, and said called number has been ordered the one number service in the IP Multimedia System network;
Receiving system, be used to receive the call request that calling terminal sends to called number;
Call out the route adjusting device, be used for, the calling route of said first terminal called and/or said second terminal called is adjusted according to said state information.
10. system according to claim 9; It is characterized in that; When if the state information of said second terminal called is current off-line; Said calling route adjusting device is used for directly setting up to call out with the mobile switching centre at said first terminal called place being connected, and does not call out route and be not triggered to the IP Multimedia System network.
11. system according to claim 9; It is characterized in that; If the state information of said first terminal called is current off-line, and the state information of said second terminal called is when being current online, said calling route adjusting device; Be used for only carrying out route, and suppress route is carried out in the calling of said first terminal called to the calling of said second terminal called.
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