CN103414700A - Method and device for calling routing - Google Patents
Method and device for calling routing Download PDFInfo
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- CN103414700A CN103414700A CN2013103144310A CN201310314431A CN103414700A CN 103414700 A CN103414700 A CN 103414700A CN 2013103144310 A CN2013103144310 A CN 2013103144310A CN 201310314431 A CN201310314431 A CN 201310314431A CN 103414700 A CN103414700 A CN 103414700A
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Abstract
The invention provides a method and device for calling routing and relates to the technical field of communication. The method includes the steps that a calling request initiated by a use is received; address information of a next hop first level area device is obtained from an ENUM/DNS server in an inquiring mode, wherein the address information corresponds to a called number in the calling request, and address information is configured in the ENUM/DNS server and corresponds to an IMS user or a non-IMS user; the calling request is routed to the first level area device corresponding to the address information so that the first level area device can route the calling request by the adoption of a second level area device corresponding to a second level area where the called number belongs. According to the technical scheme, on the basis that telephone traffic mutual communication between the IMS user and the non-IMS user is achieved, the routing efficiency of calling is improved, and burdens of network cell equipment are reduced.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of call route method and device.
Background technology
IMS (IP Multimedia Subsystem, IP Multimedia System) be a kind of brand-new multimedia service form, as a kind of technology that can realize the network all-IP, standard open and to be independent of access network be its main feature simply, flexibly,, the IMS network can meet present terminal client to demand more novel, more diversified multimedia service, becoming the core of converged communication system of future generation, is also the evolution direction of language switching network.
In the evolution of IMS network future, within a very long time will with based on CS(circuit switching, circuit switching) telephone network (comprising the circuit-switched networks such as PLMN, GSM) coexists, therefore, the traffic intercommunication that realizes the IMS network user and the CS network user is very important.In the IMS network, usually need at present to judge whether traffic relates to non-IMS user, when relating to non-IMS user, thereby by a plurality of network element devices, transfer and traffic is routed to legacy network realizes and the intercommunication of legacy network traffic, this scheme is comparatively complicated, the traffic router efficiency is low and the IMS network in the network element device burden heavier.
Summary of the invention
The invention provides a kind of method and device be used to improving the traffic router efficiency, the invention provides a kind of call route method, comprising:
Receive the IMS Client-initiated call request that P-CSCF sends;
From inquiry the ENUM/DNS server, obtain the address information of the down hop level-1 area equipment corresponding with called number in described call request, in described ENUM/DNS server, dispose IMS user and address information corresponding to non-IMS user;
Described call request is routed to the level-1 area equipment corresponding with described address information, so that described level-1 area equipment adopts the described call request of level-2 area equipment route corresponding to level-2 area of described called number ownership.
The invention provides another call route method, comprising:
Receive the non-IMS Client-initiated call request that MGCF sends;
From inquiry the ENUM/DNS server, obtain the address information of the down hop level-1 area equipment corresponding with called number in described call request, in described ENUM/DNS server, dispose IMS user and address information corresponding to non-IMS user;
Described call request is routed to the level-1 area equipment corresponding with described address information, so that described level-1 area equipment adopts the described call request of level-2 area equipment route corresponding to level-2 area of described called number ownership.
The invention provides a kind of call routing device, described device comprises:
Receiver module, the IMS Client-initiated call request sent be used to receiving P-CSCF;
Enquiry module, for from ENUM/DNS server inquiry, obtaining the address information of the down hop level-1 area equipment corresponding with called number described call request, in described ENUM/DNS server, dispose IMS user and address information corresponding to non-IMS user;
Routing module, for described call request being routed to the level-1 area equipment corresponding with described address information, so that described level-1 area equipment adopts the described call request of level-2 area equipment route corresponding to level-2 area of described called number ownership.
The invention provides another call routing device, comprising:
Receiver module, the non-IMS Client-initiated call request sent be used to receiving MGCF;
Enquiry module, for from ENUM/DNS server inquiry, obtaining the address information of the down hop level-1 area equipment corresponding with called number described call request, in described ENUM/DNS server, dispose IMS user and address information corresponding to non-IMS user;
Routing module, for described call request being routed to the level-1 area equipment corresponding with described address information, so that described level-1 area equipment adopts the described call request of level-2 area equipment route corresponding to level-2 area of described called number ownership.
Technical scheme of the present invention, by in the ENUM/DNS server, disposing IMS user and address information corresponding to non-IMS user, realized not needing to judge the called number user type and directly call request has been routed to the equipment of the level-1 area (province) that called number belongs to, realize IMS user and the intercommunication of IMS user's traffic basis on, improve call routing efficiency, alleviated the burden of network element device.
The accompanying drawing explanation
Fig. 1 is the flow chart of call route method embodiment mono-of the present invention;
Fig. 2 is the flow chart of call route method embodiment bis-of the present invention;
Fig. 3 is the flow chart of call route method embodiment tri-of the present invention;
Fig. 4 is the structural representation of call routing device embodiment mono-of the present invention;
Fig. 5 is the structural representation of call routing device embodiment bis-of the present invention;
Fig. 6 is the structural representation of call routing device embodiment tri-of the present invention.
Embodiment
Fig. 1 is the flow chart of call route method embodiment mono-of the present invention, and referring to Fig. 1, the method for the present embodiment comprises:
Step 101: receive the IMS Client-initiated call request that P-CSCF sends;
CSCF(Call Session Control Function; CSCF) be IMS(IP Multimedia Subsystem; IP Multimedia System) inner functional entity, be whole IMS server, is divided into P-CSCF(Proxy CSCF according to function; Proxy CSCF), I-CSCF(Interrogating CSCF; Inquiry CSCF), S-CSCF(Serving CSCF; Serving CSCF) etc.
The method of the present embodiment is carried out by the S-CSCF under the IMS user of caller, each IMS user all is assigned the S-CSCF into its service when login network access, be the S-CSCF under it, P-CSCF is the entrance of IMS user visiting network, the all IMS of originating from user terminals all will pass through P-CSCF with the conversation message that ends at the IMS user terminal, in the present embodiment, the corresponding S-CSCF of level-2 area, the call request that the IMS user terminal is initiated is routed to the S-CSCF of the level-2 area under this user by P-CSCF.Step 102: obtain the address information of the down hop level-1 area equipment corresponding with called number in described call request from inquiry the ENUM/DNS server, dispose IMS user and address information corresponding to non-IMS user in described ENUM/DNS server;
Described level-1 area and described level-2 area can be two other administrative regions of level of country's division, and a level-1 area can comprise a plurality of level-2 areas, and in the present embodiment, the described level-1 area of take is province, and described level-2 area is that districts and cities are example.The described address information of obtaining the down hop level-1 area equipment (be provincial equipment) corresponding with called number in described call request from inquiry the ENUM/DNS server is specially: according to called number, find the domain name that this called number is corresponding, and according to domain name, obtain the IP address (being the address of the provincial equipment in province under called number) of down hop level-1 area equipment.
Only to dispose address information corresponding to IMS user different from ENUM/DNS server in existing scheme, in the ENUM/DNS server of the present embodiment, dispose IMS user and address information corresponding to non-IMS user, be specially: dispose IMS user and domain name corresponding to non-IMS Subscriber Number, reach the IP address of level-1 area equipment corresponding to domain name.
Step 103: described call request is routed to the level-1 area equipment corresponding with described address information, so that described level-1 area equipment adopts the described call request of level-2 area equipment route corresponding to level-2 area of described called number ownership.
The scheme of the present embodiment, by in described ENUM/DNS server, disposing IMS user and address information corresponding to non-IMS user, while having realized the IMS Client-initiated call request in S-CSCF receives this level-2 area (these districts and cities), can be directly from inquiry the ENUM/DNS server, obtain the address information of the down hop level-1 area equipment corresponding with called number in described call request, do not need first to judge that called number is that IMS user is also non-IMS Subscriber Number, according to the called number type, via multi-level network element equipment, call request is routed to again to the level-1 area equipment of the level-1 area (province) under the called subscriber, on the basis of realizing IMS user and the intercommunication of non-IMS user's traffic, alleviated the burden of network element device, and router efficiency is higher.
Further, in the call route method of above-described embodiment, described ENUM/DNS server comprises the level ENUM/DNS of group server, level-1 area level ENUM/DNS server; The described level ENUM/DNS of group server disposes IMS user and the non-IMS user's of each level-1 area number segment information, and described level-1 area level ENUM/DNS server disposes IMS user and the non-IMS user's of this level-1 area (this province) address information; Correspondingly, described in step 102, obtain the address information of the down hop level-1 area equipment corresponding with called number in described call request from inquiry the ENUM/DNS server, specifically comprise:
Address information from the level-1 area equipment that in (the ownership province of the corresponding districts and cities of S-CSCF, i.e. province under the IMS user of caller) level-1 area level ENUM/DNS server of this level-1 area, the described called number of inquiry is corresponding;
If successful inquiring, obtain the address information of the level-1 area equipment that described called number is corresponding;
If inquire about unsuccessfully, from the level-1 area of the described called number of inquiry ownership described one-level ENUM/DNS server, obtain the address information of the level-1 area equipment that described called number is corresponding from inquiry the ENUM/DNS server of the level-1 area of described called number ownership.
In the present embodiment, if S-CSCF is successful from this level-1 area level ENUM/DNS server lookup, called number is this level-1 area number (being this province number), if inquire about unsuccessfully, called number is not this level-1 area number (being other provinces number).
In the present embodiment, if called number is the IMS Subscriber Number, described down hop level-1 area equipment is specially the I-CSCF in the affiliated province of called number, in step 103 so that described level-1 area equipment adopts the described call request of level-2 area equipment route corresponding to level-2 area of described called number ownership, be specially: so that under described called number, the I-CSCF in province selects the described call request of S-CSCF route corresponding to districts and cities that described called number belongs to, the most described call request is routed to the user terminal that called number is corresponding; I-CSCF can be by inquiry HSS(Home Subscriber Server; Home subscriber server) S-CSCF under the inquiry called number.
Further, if described called number is non-IMS Subscriber Number, described down hop level-1 area equipment is specially IBCF, in step 103 so that described level-1 area equipment adopts the described call request of level-2 area equipment route corresponding to level-2 area of described called number ownership, specifically comprise: described call request is routed to the level-1 area equipment I BCF corresponding with described address information, so that described level-1 area equipment adopts the described call request of MGCF route of the level-2 area of described called number ownership, and then make described MGCF described call request is routed to the CS network of the level-2 area of described called number ownership.
Preferentially, in the present embodiment, address information corresponding to non-IMS user configured in described ENUM/DNS server is specially domain name and provincial IBCF(Interconnection Border Control Function corresponding to domain name that non-IMS Subscriber Number is corresponding; Interconnected boundary Control function group) IP address, for example, the non-IMS Subscriber Number in Guangdong Province, corresponding domain name is@IBCF.GD.COM, IP address corresponding to this domain name is the address of the IBCF in Guangdong Province.Correspondingly, when called number was non-IMS user, described down hop level-1 area equipment was IBCF.
IBCF in the present embodiment disposes number section attaching information (namely number section belongs to districts and cities' information) of each level-2 area in corresponding level-1 area, integrated BGCF(Breakout Gateway Control Function; Breakout Gateway Control Function) function, IBCF finds according to number section attaching information of self configuration the level-2 area that called number belongs to, and described call request is routed to MGCF(Media GatewayControl Function corresponding to level-2 area that described called number belongs to; MGCF), MGCF is routed to call request on the CS network of this level-2 area, and the most described call request is routed to the user terminal that called number is corresponding; Described MGCF can control MGW convert media agreement, realizes the intercommunication of IMS network and CS network.
Especially, the method of the present embodiment, when described called number is non-IMS user and the level-1 area different from the IMS user attaching of described caller, after in the method for the present embodiment, by the IMS network, call request being routed to called level-1 area, by called level-1 area, be routed to the CS network again, realized by trans-regional (transprovincially) trunk call between IMS network dredging IMS user and non-IMS user, with in prior art, in the caller province, call request is routed to the CS network and by the CS network, is routed the call to again the scheme ratio in called subscriber province, saved the port resource of traditional long-distance network, and maximum using the advantage of IMS network IP intercommunication.
Fig. 2 is the flow chart of call route method embodiment bis-of the present invention, and referring to Fig. 2, the method for the present embodiment comprises:
Step 201: receive the non-IMS Client-initiated call request that MGCF sends;
In the present embodiment, the corresponding MGCF of level-2 area, the corresponding I-CSCF of level-1 area, in the present embodiment, take described level-1 area as province, described level-2 area is example as districts and cities.The method of the present embodiment is carried out by the I-CSCF of the level-1 area under the described non-IMS user of caller, MGCF in this step is the MGCF of level-2 area of the non-IMS user attaching of caller, and non-IMS Client-initiated call request is routed to the IMS network through MGCF.
Step 202: obtain the address information of the down hop level-1 area equipment corresponding with called number in described call request from inquiry the ENUM/DNS server, dispose IMS user and address information corresponding to non-IMS user in described ENUM/DNS server;
In the present embodiment, described called number can also can be non-IMS user for IMS user, the described address information of obtaining the down hop level-1 area equipment corresponding with called number in described call request from inquiry the ENUM/DNS server is specially: according to called number, find the domain name that this called number is corresponding, and according to domain name, obtain the IP address (being the address of the level-1 area equipment in province under called number) of down hop level-1 area equipment.
In described ENUM/DNS server, dispose IMS user and address information corresponding to non-IMS user is specially: IMS user and domain name corresponding to non-IMS Subscriber Number, and the IP address of level-1 area equipment corresponding to domain name.In the present embodiment, level-1 area equipment corresponding to IMS user is I-CSCF, and level-1 area equipment corresponding to non-IMS user is IBCF.
Step 203: described call request is routed to the level-1 area equipment corresponding with described address information, so that described level-1 area equipment adopts the described call request of level-2 area equipment route corresponding to level-2 area of described called number ownership.
Especially, when called number is this province (province under the non-IMS user of caller) IMS user, affiliated down hop level-1 area equipment is for carrying out the I-CSCF of the present embodiment method itself, correspondingly this step is specially: described call request is routed to the S-CSCF of districts and cities under described called number, so that the described call request of S-CSCF route.
The method of the present embodiment, by in described ENUM/DNS server, disposing IMS user and address information corresponding to non-IMS user, realized when I-CSCF receives the non-IMS Client-initiated call request of this province, can be directly from inquiry the ENUM/DNS server, obtain the address information of the down hop level-1 area equipment corresponding with called number in described call request, do not need first to judge that called number is that IMS user is also non-IMS Subscriber Number, according to the called number type, via multi-level network element equipment, call request is routed to again to the level-1 area equipment of the level-1 area (province) under the called subscriber, on the basis of realizing non-IMS user and the intercommunication of IMS user's traffic, realized by the traffic between the IMS network non-IMS user of dredging and non-IMS user, alleviated the port resource of traditional traffic network, alleviated the burden of network element device, improved the efficiency of call routing.
Fig. 3 is the flow chart of call route method embodiment tri-of the present invention, and referring to Fig. 3, the method for the present embodiment comprises:
Step 301: receive the non-IMS Client-initiated call request that MGCF sends;
In the present embodiment, the corresponding MGCF of level-2 area, the corresponding I-CSCF of level-1 area, particularly, the described level-2 area of take in the present embodiment is example as districts and cities, described level-1 area as province.The method of the present embodiment is carried out by the I-CSCF in the province under the described non-IMS user of caller, and the MGCF in this step is the MGCF of level-2 area of the non-IMS user attaching of caller, and non-IMS Client-initiated call request is routed to the IMS network through MGCF.
Step 302: the called number in described call request is carried out to the HSS server lookup, if successful inquiring performs step 303, perform step 304 if inquire about unsuccessfully;
In the present embodiment, if HSS server lookup success, namely find the S-CSCF of described called number ownership, described called number is the IMS user of this province, if inquire about unsuccessfully, non-province IMS user of described called number, namely described called number may be the non-IMS user of this province, other provinces IMS user or the non-IMS user in other provinces.
Step 303: the described call request of S-CSCF route of the called number ownership by inquiring;
In the present embodiment, inquire about by HSS, realized being routed directly to the S-CSCF of called number ownership when called number is this province IMS user, no longer carry out subsequent query, saved router efficiency.
Step 304: obtain the address information of the down hop level-1 area equipment corresponding with called number in described call request from inquiry the ENUM/DNS server, dispose IMS user and address information corresponding to non-IMS user in described ENUM/DNS server;
In the present embodiment, described ENUM/DNS server comprises the level ENUM/DNS of group server, level-1 area level ENUM/DNS server; The described level ENUM/DNS of group server disposes each province IMS user and non-IMS user's number segment information, and described level-1 area level ENUM/DNS server disposes this province IMS user and non-IMS user's address information;
Describedly from inquiry the ENUM/DNS server, obtain the address information of the down hop level-1 area equipment corresponding with called number in described call request, specifically comprise:
Address information from the level-1 area equipment that in the provincial ENUM/DNS server of this province (province that I-CSCF is corresponding is also the non-IMS user attaching province of caller), the described called number of inquiry is corresponding; If successful inquiring, obtain the address information of the level-1 area equipment that described called number is corresponding; If inquire about unsuccessfully, from the described called number ownership of inquiry the described level ENUM/DNS of group server province, from the level-1 area level ENUM/DNS server in described called number ownership province, inquiring about the address information of obtaining the level-1 area equipment that described called number is corresponding.
In the present embodiment, if S-CSCF is from the level-1 area level ENUM/DNS server lookup success of this province, called number is the non-IMS Subscriber Number of this province, if inquire about unsuccessfully, called number is other provinces number (the non-IMS Subscriber Number in other provinces IMS Subscriber Number or other provinces).
Step 305: described call request is routed to the level-1 area equipment corresponding with described address information, so that described level-1 area equipment adopts the described call request of level-2 area equipment route corresponding to level-2 area of described called number ownership.
If called number is other provinces IMS Subscriber Numbers, described down hop level-1 area equipment is specially the I-CSCF in the affiliated province of called number, in this step so that described level-1 area equipment adopts the described call request of level-2 area equipment route corresponding to level-2 area of described called number ownership, be specially: so that under described called number, the I-CSCF in province selects the described call request of S-CSCF route corresponding to districts and cities that described called number belongs to, the most described call request is routed to the user terminal that called number is corresponding; I-CSCF can be by inquiry HSS(Home Subscriber Server; Home subscriber server) S-CSCF under the inquiry called number.
In the present embodiment, if described called number is non-IMS Subscriber Number, described described call request is routed to the level-1 area equipment corresponding with described address information, so that described level-1 area equipment adopts the described call request of level-2 area equipment route corresponding to level-2 area of described called number ownership, specifically comprise:
Described call request is routed to the level-1 area equipment I BCF corresponding with described address information, so that described level-1 area equipment adopts the described call request of MGCF route of the level-2 area of described called number ownership, and then make described MGCF described call request is routed to the CS network of the level-2 area of described called number ownership.
IBCF in the present embodiment disposes number section attaching information of each level-2 area in corresponding province, integrated BGCF(Breakout Gateway Control Function; Breakout Gateway Control Function) function, the level-2 area information searching of number section ownership that IBCF configures according to self, to the districts and cities of called number ownership, is routed to by described call request MGCF(Media Gateway Control Function corresponding to districts and cities that described called number belongs to; MGCF), MGCF is routed to call request on the CS network of these districts and cities, and the most described call request is routed to the user terminal that called number is corresponding; Described MGCF can control MGW convert media agreement, realizes the intercommunication of IMS network and CS network.
The method of the present embodiment, on the basis of improving the efficiency of call routing between non-IMS user and IMS user, realized by the traffic between the IMS network non-IMS user of dredging and non-IMS user, alleviated the port resource of traditional traffic network, particularly, in the situation that trans-regional (transprovincially) between non-IMS user and non-IMS user calls out, compared with prior art, alleviated the burden of network element device, improved the efficiency of call routing, and the maximum advantage of having utilized the IMS network.
Fig. 4 is the structural representation of call routing device embodiment mono-of the present invention, and referring to Fig. 4, the device of the present embodiment is arranged in the S-CSCF under the calling subscriber, comprising:
Described ENUM/DNS server comprises the level ENUM/DNS of group server, each level-1 area level ENUM/DNS server; The described level ENUM/DNS of group server disposes each province IMS user and non-IMS user's number segment information, and described level-1 area level ENUM/DNS server disposes this province IMS user and non-IMS user's address information.
Number segment information of the described level ENUM/DNS of group server configuration, the level-1 area of indicating each number section to belong to.
Further, enquiry module 42 in the device of above-described embodiment, specifically for: from the address information of the level-1 area equipment that in the level-1 area level ENUM/DNS server of this level-1 area (the ownership province of the corresponding districts and cities of S-CSCF, i.e. the IMS user of caller under province), the described called number of inquiry is corresponding; If successful inquiring, obtain the address information of the level-1 area equipment that described called number is corresponding; If inquire about unsuccessfully, from the level-1 area of the described called number of inquiry ownership the level ENUM/DNS of group server, obtain the address information of the level-1 area equipment that described called number is corresponding from inquiry the level-1 area level ENUM/DNS server of the level-1 area of described called number ownership.
Further, described called number is non-IMS Subscriber Number, correspondingly, described routing module 43 specifically for: described call request is routed to the level-1 area equipment (IBCF) corresponding with described address information, so that described level-1 area equipment adopts the described call request of MGCF route of the level-2 area of described called number ownership, and then make described MGCF described call request is routed to the CS network of the level-2 area of described called number ownership.
The device of the present embodiment is for carrying out the technical scheme of embodiment of the method shown in Figure 1, its realize principle and technique effect similar, do not repeat them here.
Fig. 5 is the structural representation of call routing device embodiment bis-of the present invention, and the device of the present embodiment is arranged in the I-CSCF of level-1 area of calling subscriber ownership, and referring to Fig. 5, the device of the present embodiment comprises:
The device of the present embodiment is for carrying out the technical scheme of embodiment of the method shown in Figure 2, its realize principle and technique effect similar, do not repeat them here.
Fig. 6 is the structural representation of call routing device embodiment tri-of the present invention, and the device of the present embodiment is arranged in the I-CSCF of level-1 area of calling subscriber ownership, and referring to Fig. 6, the device of the present embodiment, on the basis of structure shown in Figure 5, also comprises:
If described enquiry module 52 is for HSS server lookup failure, describedly from inquiry the ENUM/DNS server, obtain the address information of the down hop level-1 area equipment corresponding with called number in described call request, in described ENUM/DNS server, dispose IMS user and address information corresponding to non-IMS user.
Described ENUM/DNS server comprises the level ENUM/DNS of group server, level-1 area level ENUM/DNS server; The described level ENUM/DNS of group server disposes each province IMS user and non-IMS user's number segment information, and described level-1 area level ENUM/DNS server disposes this province IMS user and non-IMS user's address information.
Further, in the present embodiment, described enquiry module 52 specifically for:
Address information from the level-1 area equipment that the provincial ENUM/DNS server of this province, the described called number of inquiry is corresponding;
If successful inquiring, obtain the address information of the level-1 area equipment that described called number is corresponding;
If inquire about unsuccessfully, from the described called number of inquiry ownership province the described level ENUM/DNS of group server, obtain the address information of the level-1 area equipment that described called number is corresponding from inquiry the level-1 area level ENUM/DNS server of the level-1 area of described called number ownership.
In above-mentioned device embodiment, further, if described called number is non-IMS Subscriber Number, described routing module 53 specifically for:
Described call request is routed to the level-1 area equipment corresponding with described address information, so that described level-1 area equipment adopts the described call request of MGCF route of the level-2 area of described called number ownership, and then make described MGCF described call request is routed to the CS network of the level-2 area of described called number ownership.
The device of the present embodiment can be used to carrying out the technical scheme of method shown in Figure 3, and it realizes that the philosophy and technique effect is similar, does not repeat them here.
One of ordinary skill in the art will appreciate that: all or part of step that realizes above-mentioned each embodiment of the method can complete by the hardware that program command is correlated with.Aforesaid program can be stored in a computer read/write memory medium.This program, when carrying out, is carried out the step that comprises above-mentioned each embodiment of the method; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CDs.
Finally it should be noted that: above each embodiment, only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to aforementioned each embodiment, the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme that aforementioned each embodiment puts down in writing, or some or all of technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the scope of various embodiments of the present invention technical scheme.
Claims (10)
1. a call route method, is characterized in that, comprising:
Receive the IMS Client-initiated call request that P-CSCF sends;
From inquiry the ENUM/DNS server, obtain the address information of the down hop level-1 area equipment corresponding with called number in described call request, in described ENUM/DNS server, dispose IMS user and address information corresponding to non-IMS user;
Described call request is routed to the level-1 area equipment corresponding with described address information, so that described level-1 area equipment adopts the described call request of level-2 area equipment route corresponding to level-2 area of described called number ownership.
2. the method for claim 1, it is characterized in that, described called number is non-IMS Subscriber Number, described described call request is routed to the level-1 area equipment corresponding with described address information, so that described level-1 area equipment adopts the described call request of level-2 area equipment route corresponding to level-2 area of described called number ownership, specifically comprise:
Described call request is routed to the level-1 area equipment corresponding with described address information, so that described level-1 area equipment adopts the described call request of MGCF route of the level-2 area of described called number ownership, and then make described MGCF described call request is routed to the CS network of the level-2 area of described called number ownership.
3. a call route method, is characterized in that, comprising:
Receive the non-IMS Client-initiated call request that MGCF sends;
From inquiry the ENUM/DNS server, obtain the address information of the down hop level-1 area equipment corresponding with called number in described call request, in described ENUM/DNS server, dispose IMS user and address information corresponding to non-IMS user;
Described call request is routed to the level-1 area equipment corresponding with described address information, so that described level-1 area equipment adopts the described call request of level-2 area equipment route corresponding to level-2 area of described called number ownership.
4. method as claimed in claim 3, is characterized in that, after the non-IMS Client-initiated call request that described reception MGCF sends, also comprises:
Called number in described call request is carried out to the HSS server lookup;
Describedly from inquiry the ENUM/DNS server, obtain the address information of the down hop level-1 area equipment corresponding with called number in described call request, in described ENUM/DNS server, dispose IMS user and address information corresponding to non-IMS user, be specially:
If HSS server lookup failure, describedly from inquiry the ENUM/DNS server, obtain the address information of the down hop level-1 area equipment corresponding with called number in described call request, in described ENUM/DNS server, dispose IMS user and address information corresponding to non-IMS user.
5. method as described as claim 3 or 4, it is characterized in that, described called number is non-IMS Subscriber Number, described described call request is routed to the level-1 area equipment corresponding with described address information, so that described level-1 area equipment adopts the described call request of level-2 area equipment route corresponding to level-2 area of described called number ownership, specifically comprise:
Described call request is routed to the level-1 area equipment corresponding with described address information, so that described level-1 area equipment adopts the described call request of MGCF route of the level-2 area of described called number ownership, and then make described MGCF described call request is routed to the CS network of the level-2 area of described called number ownership.
6. a call routing device, is characterized in that, comprising:
Receiver module, the IMS Client-initiated call request sent be used to receiving P-CSCF;
Enquiry module, for from ENUM/DNS server inquiry, obtaining the address information of the down hop level-1 area equipment corresponding with called number described call request, in described ENUM/DNS server, dispose IMS user and address information corresponding to non-IMS user;
Routing module, for described call request being routed to the level-1 area equipment corresponding with described address information, so that described level-1 area equipment adopts the described call request of level-2 area equipment route corresponding to level-2 area of described called number ownership.
7. device as claimed in claim 6, is characterized in that, described called number is non-IMS Subscriber Number, described routing module specifically for:
Described call request is routed to the level-1 area equipment corresponding with described address information, so that described level-1 area equipment adopts the described call request of MGCF route of the level-2 area of described called number ownership, and then make described MGCF described call request is routed to the CS network of the level-2 area of described called number ownership.
8. a call routing device, is characterized in that, comprising:
Receiver module, the non-IMS Client-initiated call request sent be used to receiving MGCF;
Enquiry module, for from ENUM/DNS server inquiry, obtaining the address information of the down hop level-1 area equipment corresponding with called number described call request, in described ENUM/DNS server, dispose IMS user and address information corresponding to non-IMS user;
Routing module, for described call request being routed to the level-1 area equipment corresponding with described address information, so that described level-1 area equipment adopts the described call request of level-2 area equipment route corresponding to level-2 area of described called number ownership.
9. device as claimed in claim 8, is characterized in that, described, also comprises:
The HSS enquiry module, after the non-IMS Client-initiated call request receiving the MGCF transmission, carry out the HSS server lookup to the called number in described call request;
If described enquiry module is for HSS server lookup failure, describedly from inquiry the ENUM/DNS server, obtain the address information of the down hop level-1 area equipment corresponding with called number in described call request, in described ENUM/DNS server, dispose IMS user and address information corresponding to non-IMS user.
As claimed in claim 8 or 9 the device, it is characterized in that, described called number is non-IMS Subscriber Number, described routing module specifically for:
Described call request is routed to the level-1 area equipment corresponding with described address information, so that described level-1 area equipment adopts the described call request of MGCF route of the level-2 area of described called number ownership, and then make described MGCF described call request is routed to the CS network of the level-2 area of described called number ownership.
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| CN201310314431.0A CN103414700B (en) | 2013-07-24 | 2013-07-24 | Method and device for calling routing |
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| CN201310314431.0A CN103414700B (en) | 2013-07-24 | 2013-07-24 | Method and device for calling routing |
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| CN103414700B (en) | 2016-08-10 |
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