CN103457848B - Call route method, Apparatus and system - Google Patents
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Abstract
The present invention provides a kind of call route method, Apparatus and system, relates to communication technical field, and wherein, described method includes: I CSCF receives the call request initiated by the CS network user that a MGCF corresponding to the level-2 area in this level-1 area sends；If described I CSCF determines that the called number in described call request is non-IMS Subscriber Number, then described call request is routed to the BGCF that this level-1 area is corresponding, so that a described BGCF determines, according to number segment information of each level-1 area of configuration, the level-1 area that described called number belongs to, and described call request is routed to the 2nd BGCF corresponding to level-1 area of described called number ownership, and then described call request is made to be routed to the CS network of level-2 area of described called number ownership by described 2nd BGCF.Technical scheme achieves dredges the calling between the CS network user of level-1 area by IMS network, has saved the port resource of traditional long-distance network, it is possible to make full use of the advantage that the intercommunication of IMS network IP is brought.
Description
Technical field
The present invention relates to communication technical field, particularly to a kind of call route method, Apparatus and system.
Background technology
IMS (IP Multimedia Subsystem, IP Multimedia System) is a kind of brand-new many matchmakers
Body form of service, as a kind of technology that can realize the full IPization of network, simple, flexible, standard open
And be its main feature independent of access network, IMS network disclosure satisfy that present terminal client is to more
The demand of multimedia service novel, more diversified, becomes the core of converged communication system of future generation,
Also it is the evolution tendency of language exchange network.
In the evolution that IMS network is following, within a very long time will with based on CS
The telephone network of (circuit switching, circuit switching) (includes the circuit such as PLMN, GSM
Exchange network) coexist, therefore, it is achieved IMS network is the most necessary with the traffic intercommunication of CS network
's.IMS network is only limited to IMS network user and CS network use with the traffic intercommunication of CS network at present
Traffic intercommunication between family (non-IMS network user), and the traffic between the CS network user is still only
Pass through conventional CS network.
Therefore, in existing scheme, the calling transprovincially between the CS network user in different provinces can only be led to
Cross CS long-distance network, occupy the port resource of tradition long-distance network, it is impossible to utilize IMS network IP
The advantage that intercommunication is brought.
Summary of the invention
The present invention provides a kind of call route method, Apparatus and system, is used for solving to exist in prior art
The problems referred to above.
The present invention provides a kind of call route method, including:
I-CSCF receive the level-2 area in this level-1 area corresponding the oneth MGCF send by CS network
Client-initiated call request；
If described I-CSCF determines that the called number in described call request is non-IMS Subscriber Number, then will
Described call request is routed to the BGCF that this level-1 area is corresponding so that a described BGCF according to
Number segment information of each level-1 area of configuration determines the level-1 area that described called number belongs to, and by described
Call request is routed to the 2nd BGCF corresponding to level-1 area of described called number ownership, and then makes institute
State the CS network that call request is routed to the level-2 area of described called number ownership by described 2nd BGCF.
The present invention provides another call route method, including:
2nd BGCF receives the call request that a BGCF sends, and described call request is by the CS network user
Initiate, a MGCF of the level-2 area of described CS network user ownership be sent to described CS network and use
The I-CSCF corresponding to level-1 area of family ownership, and the quilt in described I-CSCF determines described call request
After code of calling out the numbers is non-IMS Subscriber Number, the level-1 area being routed to described CS network user ownership is corresponding
A described BGCF, a described BGCF determine described according to a number segment information for each level-1 area of configuration
After the level-1 area of called number ownership, described call request is routed to described called number ownership
Described 2nd BGCF that level-1 area is corresponding；
Described call request is routed to the level-2 area of described called number ownership by described 2nd BGCF
CS network.
The present invention provides a kind of call routing device, including:
Receiver module, for receive the level-2 area in this level-1 area corresponding the oneth MGCF send by
The call request that the CS network user initiates；
Routing module, when the called number being used in determining described call request is non-IMS Subscriber Number,
Described call request is routed to the BGCF that this level-1 area is corresponding, so that a described BGCF root
The level-1 area that described called number belongs to is determined according to number segment information of each level-1 area of configuration, and by institute
State call request and be routed to the 2nd BGCF corresponding to level-1 area of described called number ownership, and then make
Described call request is routed to the CS net of the level-2 area of described called number ownership by described 2nd BGCF
Network.
The present invention provides another call routing device, including:
Receiver module, for receiving the call request that a BGCF sends, described call request is by CS net
Network user initiates, a MGCF of the level-2 area of described CS network user ownership be sent to described CS
The I-CSCF corresponding to level-1 area of network user's ownership, and determine described call request at described I-CSCF
In called number be non-IMS Subscriber Number after, be routed to the described CS network user ownership level-1 area
A corresponding described BGCF, a described BGCF is true according to number segment information of each level-1 area of configuration
After the level-1 area of fixed described called number ownership, described call request is routed to described called number
2nd BGCF corresponding to level-1 area of ownership；
Routing module, for being routed to the level-2 area of described called number ownership by described call request
CS network.
The present invention provides a kind of call route system, including:
I-CSCF equipment, a kind of call routing device provided including the preceding claim present invention, it is used for
Receive that a MGCF corresponding to level-2 area in this level-1 area send is initiated by the CS network user
Call request；And the called number in determining described call request is non-IMS Subscriber Number, then by institute
State call request and be routed to the BGCF that this level-1 area is corresponding；
A described BGCF, number segment information for each level-1 area according to configuration determines described called number
The level-1 area of code ownership, and described call request is routed to the level-1 area of described called number ownership
The 2nd corresponding BGCF；
Described 2nd BGCF, another the call routing device provided including the invention described above, it is used for receiving
The call request that a described BGCF sends, and described call request is routed to described called number ownership
The CS network of level-2 area.
In technical scheme, it is achieved that dredge the CS net across level-1 area by IMS network
Calling between network user, has saved the port resource of traditional long-distance network, and can make full use of
The advantage that the intercommunication of IMS network IP is brought.
Accompanying drawing explanation
Fig. 1 is the flow chart of call route method embodiment one of the present invention；
Fig. 2 is the flow chart of call route method embodiment two of the present invention；
Fig. 3 is the flow chart of call route method embodiment three of the present invention；
Fig. 4 is the structural representation of call routing device embodiment one of the present invention；
Fig. 5 is the structural representation of call routing device embodiment two of the present invention.
Detailed description of the invention
Fig. 1 is the flow chart of call route method embodiment one of the present invention, sees Fig. 1, the present embodiment
Method specifically includes:
Step 101:I-CSCF receives what a MGCF corresponding to the level-2 area in this level-1 area sent
The call request initiated by the CS network user；
CSCF(Call Session Control Function；CSCF) it is IMS(IP
Multimedia Subsystem；IP Multimedia System) internal functional entity is 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)
Deng.MGCF(Media Gateway Control Function；MGCF) it is that IP is many
One ingredient of media subsystem (IMS), can control MGW and change media protocol, it is achieved IMS net
Network and the intercommunication of CS network.
In the present embodiment, the corresponding I-CSCF of level-1 area, corresponding one of level-2 area
MGCF, described level-1 area and described level-2 area can be the administrative region of two ranks that country divides,
One level-1 area can comprise multiple level-2 area, in the present embodiment, with described level-1 area for saving
Part, as a example by described level-2 area is districts and cities.After the CS network user initiates call request, by this level-2 area
The CS network of (i.e. districts and cities belonging to the CS network user of caller) is routed to the MGCF that this level-2 area is corresponding
(the i.e. the oneth MGCF), thus calling is routed to IMS network from CS network.Belonging to call request by
It is corresponding that a described MGCF is routed to this level-1 area (i.e. the province of CS network user's ownership of caller)
I-CSCF.
Specifically, in the present embodiment, the CS network of this level-1 area can identify that called number is basis one
The call request of CS network user's number in level region, therefore called when described CS network user calling
When number is CS network user's number of this level-1 area, described call request is directly dredged by CS network,
No longer be routed to a described MGCF, therefore, the MGCF that I-CSCF receives send by CS net
Called number type in network Client-initiated call request is IMS Subscriber Number or non-level-1 area
CS network user's number (i.e. CS network user's number in other provinces).
Step 102: if described I-CSCF determines that the called number in described call request is non-IMS user
Number, then be routed to the BGCF that this level-1 area is corresponding by described call request, so that described first
BGCF determines, according to number segment information of each level-1 area of configuration, the level-1 area that described called number belongs to,
And described call request is routed to the 2nd BGCF corresponding to level-1 area of described called number ownership, enter
And make described call request be routed to the level-2 area of described called number ownership by described 2nd BGCF
CS network.
In the present embodiment, the corresponding BGCF of level-1 area, described level-1 area corresponding the
The corresponding BGCF, a described BGCF in province belonging to the one BGCF i.e. CS network user of caller joins
It is equipped with number segment information (i.e. the ownership province information of each section) of a level-1 area.If described I-CSCF
Determine that the called number in described call request is that non-IMS Subscriber Number i.e. determines that described called number is
CS network user's number in other provinces.
The method of the present embodiment, is routed to the call request that the CS network user initiates by MGCF
At I-CSCF, IMS network also determines that the called number of described call request is for across level-1 area (transprovincially)
The CS network user between calling time, described call request is routed to called number ownership one
The BGCF in level region, is routed to the level-2 area of called number ownership then by described call request
CS network, it is achieved that dredge the calling between the CS network user of level-1 area by IMS network,
Save the port resource of traditional long-distance network, and the intercommunication of IMS network IP can be made full use of carried
The advantage come.
Further, in the above embodiments, described I-CSCF determines the called number in described call request
Code specifically includes for non-IMS Subscriber Number:
The address letter corresponding with the called number in described call request is inquired about from ENUM/DNS server
Breath；
If inquiring about unsuccessfully, it is determined that described called number is non-IMS Subscriber Number, described ENUM/DNS takes
Business device storage has the address information that the IMS Subscriber Number of each level-1 area is corresponding.
The address letter that in described ENUM/DNS server, the IMS Subscriber Number of each level-1 area of storage is corresponding
Breath is particularly as follows: the IP address of I-CSCF corresponding to level-1 area of each IMS Subscriber Number ownership.
Further, described inquiry and the called number in described call request from ENUM/DNS server
Before corresponding address information, described method also includes:
Described I-CSCF carries out HSS server lookup to described called number；
The described ground that inquiry is corresponding with the called number in described call request from ENUM/DNS server
Location information particularly as follows:
If described HSS server lookup failure, the most described I-CSCF inquires about from ENUM/DNS server
The address information corresponding with the called number in described call request.
HSS(Home Subscriber Server；Home subscriber server) it is key-course in IMS network
Important component part, be configured with part IMS Subscriber Number ownership S-CSCF information, it may be preferable that
In the present embodiment, the corresponding HSS server of each level-1 area, each HSS server configures is corresponding
Level-1 area in IMS Subscriber Number ownership S-CSCF information, described HSS server lookup is concrete
For: the HSS server corresponding by this level-1 area carries out HSS server lookup.If described HSS takes
Business device successful inquiring, it is determined that described called number is IMS Subscriber Number, and inquiry obtain called number
Affiliated S-CSCF, and then described call request is routed directly to this S-CSCF, and then it is routed to called
The user terminal that number is corresponding, further increases the efficiency of route.
Fig. 2 is the flow chart of call route method embodiment two of the present invention, sees Fig. 2, the present embodiment
Method specifically includes:
Step 201: the 2nd BGCF receive the oneth BGCF send call request, described call request by
The CS network user initiates, a MGCF of the level-2 area of described CS network user ownership be sent to institute
State the I-CSCF corresponding to level-1 area of CS network user's ownership, and exhale described in determining at described I-CSCF
After making the called number in request be non-IMS Subscriber Number, it is routed to the one of described CS network user ownership
The level corresponding described BGCF, a described BGCF in region is according to number section of each level-1 area of configuration
After information determines the level-1 area that described called number belongs to, described call request is routed to described quilt
It is described 2nd BGCF that the level-1 area of number home is corresponding；
In the present embodiment with described level-1 area as province, described level-2 area as districts and cities as a example by.
Step 202: described call request is routed to the two of described called number ownership by described 2nd BGCF
The CS network in level region.
The method of the present embodiment, is routed to the call request that the CS network user initiates by MGCF
At I-CSCF, IMS network also determines that the called number of described call request is for across level-1 area (transprovincially)
The CS network user between calling time, described call request is routed to called number ownership one
The BGCF in level region, is routed to the level-2 area of called number ownership then by described call request
CS network, it is achieved that dredge the calling between the CS network user of level-1 area by IMS network,
Save the port resource of traditional long-distance network, and the intercommunication of IMS network IP can be made full use of carried
The advantage come.
Further, in the present embodiment, described call request is routed to described quilt by described 2nd BGCF
The CS network being the level-2 area of number home specifically includes:
Described 2nd BGCF is according to each level-2 area in the level-1 area of the called number ownership of configuration
Number segment information, determines the level-2 area that described called number belongs to, and described call request is routed to institute
State the 2nd MGCF that the level-2 area of called number ownership is corresponding so that described 2nd MGCF exhales described
Request is made to be routed to the CS network of the level-2 area that described called number belongs to.
BGCF is configured with number segment information of each districts and cities in corresponding province, determines according to a number segment information for configuration
The districts and cities of called number ownership.Described call request is routed to described called number and returns by described 2nd MGCF
After the CS network of the level-2 area belonged to, described call request is routed to described called by described CS network
The user terminal that number is corresponding.
Fig. 3 is the flow chart of call route method embodiment three of the present invention, sees Fig. 3, the present embodiment
Method includes:
The MGCF that step 301:I-CSCF receives the level-2 area in this level-1 area corresponding sends
The call request initiated by the CS network user；
In the present embodiment, with described level-1 area as province, described level-2 area as districts and cities as a example by, work as CS
When network user terminals initiates call request, call request is routed to the CS net of the districts and cities of this user attaching
Network, the CS network of these districts and cities can identify this level-1 area (i.e. province of CS network user's ownership of caller
Part) CS network user's number, if the called number in call request is the CS net in this level-1 area
Network user (i.e. this CS network user inside the province), then the CS network of these districts and cities directly please by described calling
Dredging is asked to arrive the user terminal that called number is corresponding.If described called number is not the CS net of this level-1 area
Network user, the most described call request is routed to, by described CS network, the MGCF that this level-2 area is corresponding,
Thus dredging is to IMS network.
Step 302:I-CSCF carries out HSS server lookup to the called number in described call request,
If successful inquiring, performing step 303, if inquiring about unsuccessfully, performing step 304；
If HSS server lookup success, it is determined that described called number is IMS user, inquiry is somebody's turn to do
S-CSCF belonging to IMS user.
Described call request is routed to belonging to the called number that inquires by step 303:I-CSCF
S-CSCF, so that call request is routed to the user terminal that called number is corresponding by S-CSCF；
In the present embodiment, it is prior art that call request is routed to the process of IMS user terminal by S-CSCF,
Do not repeat them here.
Step 304:I-CSCF is inquired about and the called number in described call request from ENUM/DNS server
The address information that code is corresponding, if successful inquiring, performs step 305, if inquiring about unsuccessfully, performs step 306；
Described ENUM/DNS server configures has the address information that each province IMS Subscriber Number is corresponding, if looking into
Asking successfully, it is determined that described called number is IMS Subscriber Number, inquiry obtains described called number ownership
Level-1 area i.e. belong to the IP address of I-CSCF corresponding to province.If inquiring about unsuccessfully, it is determined that described
Called number is non-IMS Subscriber Number.
The address information that step 305:I-CSCF is corresponding according to inquiring about the called number obtained, please by calling
Seek the I-CSCF that the level-1 area being routed to called number ownership is corresponding；
In the present embodiment, after this step, also include that the I-CSCF that called number belongs to province corresponding will call
Request is routed to the user terminal that called number is corresponding.
Described call request is routed to the BGCF that this level-1 area is corresponding by step 306:I-CSCF；
In the present embodiment, an a corresponding I-CSCF and BGCF in province, described level-1 area correspondence
BGCF corresponding to the province that belonged to of the CS network user of an i.e. caller of BGCF.
Step 307: a number segment information for each level-1 area that a BGCF configures according to self determines described quilt
It is the level-1 area of number home；
Step 308: call request is routed to the level-1 area pair of described called number ownership by a BGCF
The 2nd BGCF answered；
Step 309: the 2nd BGCF determines the level-2 area that described called number belongs to, and by described calling
Request is routed to the 2nd MGCF corresponding to level-2 area of called number ownership, so that described 2nd MGCF
Described call request is routed to the CS network of the level-2 area of called number ownership.
Described 2nd BGCF is configured with in the level-1 area (i.e. the province of called number ownership) of its correspondence
Number segment information of each level-2 area, determines described called number according to a number segment information for each level-2 area
The level-2 area of ownership.
Then sent out after the CS network of the level-2 area that described call request is routed to called number ownership
Deliver to the user terminal that called number is corresponding.
The method of the present embodiment, mutual at the traffic realized between the CS network user and IMS network user
On the basis of Tong, it is achieved that by IMS network dredge between the CS network user across level-1 area
(transprovincially) in calling, with existing scheme by tradition long-distance network dredge the CS network user it
Between across level-1 area (transprovincially) calling compare, saved the port resource of traditional long-distance network, and
The advantage of IMS network can be made full use of.
Fig. 4 is the structural representation of call routing device embodiment one of the present invention, sees Fig. 4, this enforcement
The device of example includes:
Receiver module 41, sends for the MGCF receiving the level-2 area in this level-1 area corresponding
The call request initiated by the CS network user；
Routing module 42, is non-IMS Subscriber Number for the called number in determining described call request
Time, described call request is routed to the BGCF that this level-1 area is corresponding, so that a described BGCF
Number segment information of each level-1 area according to configuration determines the level-1 area that described called number belongs to, and will
Described call request is routed to the 2nd BGCF corresponding to level-1 area of described called number ownership, and then makes
Obtain the CS that described call request is routed to the level-2 area of described called number ownership by described 2nd BGCF
Network.
Further, described routing module 42 specifically for:
The address letter corresponding with the called number in described call request is inquired about from ENUM/DNS server
Breath；If inquiring about unsuccessfully, it is determined that described called number is non-IMS Subscriber Number, described ENUM/DNS takes
Business device storage has the address information that the IMS Subscriber Number of each level-1 area is corresponding.
In the above-described embodiments, further, described routing module is additionally operable to from ENUM/DNS server
Before the address information that middle inquiry is corresponding with the called number in described call request, to described called number
Carry out HSS server lookup；If described HSS server lookup failure, then from ENUM/DNS server
Inquire about the address information corresponding with the called number in described call request.
The level-1 area of CS network user's ownership that the device of the present embodiment is arranged on caller is corresponding
On I-CSCF, may be used for the technical scheme of the method shown in Fig. 1 that performs, it realizes principle and technology effect
Fruit seemingly, does not repeats them here.
Fig. 5 is the structural representation of call routing device embodiment two of the present invention, sees Fig. 5, this enforcement
The device of example includes:
Receiver module 51, for receiving the call request that a BGCF sends, described call request is by CS
The network user initiates, a MGCF of the level-2 area of described CS network user ownership be sent to described
The I-CSCF corresponding to level-1 area of CS network user's ownership, and determine that described calling please at described I-CSCF
After the called number asked is non-IMS Subscriber Number, it is routed to the one-level district of described CS network user ownership
The described BGCF that territory is corresponding, a described BGCF are according to number segment information of each level-1 area of configuration
After determining the level-1 area that described called number belongs to, described call request is routed to described called number
2nd BGCF corresponding to level-1 area of code ownership；
Routing module 52, for being routed to the level-2 area of described called number ownership by described call request
CS network.
Further, in the above-described embodiments, described routing module specifically for:
Number segment information of each level-2 area in the level-1 area of the called number ownership according to configuration, determines
The level-2 area of described called number ownership, and described call request is routed to described called number ownership
The 2nd MGCF corresponding to level-2 area so that described call request is routed to institute by described 2nd MGCF
State the CS network of the level-2 area of called number ownership.
The device of the present embodiment is arranged on the BGCF corresponding to level-1 area of called number ownership, Ke Yiyong
In the technical scheme of the method shown in execution Fig. 2, it realizes principle and technique effect is similar to, at this no longer
Repeat.
The present invention also provides for the embodiment of a kind of call route system, and the system of the present embodiment includes:
I-CSCF equipment, including the device shown in claim Fig. 4, for receiving in this level-1 area
The call request initiated by the CS network user that the MGCF that level-2 area is corresponding sends；And determining
Called number in described call request is non-IMS Subscriber Number, then described call request is routed to this
The BGCF that level-1 area is corresponding；
A described BGCF, number segment information for each level-1 area according to configuration determines described called number
The level-1 area of code ownership, and described call request is routed to the level-1 area of described called number ownership
The 2nd corresponding BGCF；
Described 2nd BGCF, including the device shown in Fig. 5, for receiving what a described BGCF sent
Call request, and described call request is routed to the CS net of the level-2 area of described called number ownership
Network.
The system of the present embodiment, may be used for the technical scheme of the method shown in Fig. 3 that performs, and it realizes principle
And technique effect is similar to, do not repeat them here.
One of ordinary skill in the art will appreciate that: realize all or part of step of above-mentioned each method embodiment
Suddenly can be completed by the hardware that programmed instruction is relevant.Aforesaid program can be stored in a computer can
Read in storage medium.This program upon execution, performs to include the step of above-mentioned each method embodiment；And
Aforesaid storage medium includes: ROM, RAM, magnetic disc or CD etc. are various can store program code
Medium.
Last it is noted that various embodiments above is only in order to illustrate technical scheme, rather than right
It limits；Although the present invention being described in detail with reference to foregoing embodiments, this area common
Skilled artisans appreciate that the technical scheme described in foregoing embodiments still can be modified by it,
Or the most some or all of technical characteristic is carried out equivalent；And these amendments or replacement, and
The essence not making appropriate technical solution departs from the scope of various embodiments of the present invention technical scheme.
Claims (7)
1. a call route method, it is characterised in that including:
I-CSCF receive the level-2 area in this level-1 area corresponding the oneth MGCF send by CS network
Client-initiated call request；
If described I-CSCF determines that the called number in described call request is non-IMS Subscriber Number, then will
Described call request is routed to the BGCF that this level-1 area is corresponding so that a described BGCF according to
Number segment information of each level-1 area of configuration determines the level-1 area that described called number belongs to, and by described
Call request is routed to the 2nd BGCF corresponding to level-1 area of described called number ownership, and then makes institute
State the CS network that call request is routed to the level-2 area of described called number ownership by described 2nd BGCF；
Described I-CSCF determines that the called number in described call request is that non-IMS Subscriber Number specifically wraps
Include:
The address letter corresponding with the called number in described call request is inquired about from ENUM/DNS server
Breath；
If inquiring about unsuccessfully, it is determined that described called number is non-IMS Subscriber Number, described ENUM/DNS takes
Business device storage has the address information that the IMS Subscriber Number of each level-1 area is corresponding；
The described ground that inquiry is corresponding with the called number in described call request from ENUM/DNS server
Before the information of location, described method also includes:
Described I-CSCF carries out HSS server lookup to described called number；
The described ground that inquiry is corresponding with the called number in described call request from ENUM/DNS server
Location information particularly as follows:
If described HSS server lookup failure, the most described I-CSCF inquires about from ENUM/DNS server
The address information corresponding with the called number in described call request.
2. a call route method, it is characterised in that including:
2nd BGCF receives the call request that a BGCF sends, and described call request is by the CS network user
Initiate, a MGCF of the level-2 area of described CS network user ownership be sent to described CS network and use
The I-CSCF corresponding to level-1 area of family ownership, and the quilt in described I-CSCF determines described call request
After code of calling out the numbers is non-IMS Subscriber Number, the level-1 area being routed to described CS network user ownership is corresponding
A described BGCF, a described BGCF determine described according to a number segment information for each level-1 area of configuration
After the level-1 area of called number ownership, described call request is routed to described called number ownership
Described 2nd BGCF that level-1 area is corresponding, wherein, described I-CSCF determines in described call request
Called number is that non-IMS Subscriber Number specifically includes: described I-CSCF carries out HSS to described called number
Server lookup；If described HSS server lookup failure, the most described I-CSCF services from ENUM/DNS
Device is inquired about the address information corresponding with the called number in described call request；If inquiring about unsuccessfully, the most really
Fixed described called number is non-IMS Subscriber Number, and described ENUM/DNS server storage has each level-1 area
Address information corresponding to IMS Subscriber Number；
Described call request is routed to the level-2 area of described called number ownership by described 2nd BGCF
CS network.
3. method as claimed in claim 2, it is characterised in that described 2nd BGCF is by described calling
The CS network of the level-2 area that request is routed to described called number ownership specifically includes:
Described 2nd BGCF is according to the Ge Erji district in the level-1 area of the described called number ownership of configuration
Number segment information in territory, determines the level-2 area that described called number belongs to, and described call request is route
The 2nd MGCF that the level-2 area that belongs to described called number is corresponding so that described 2nd MGCF is by institute
State the CS network that call request is routed to the level-2 area of described called number ownership.
4. a call routing device, it is characterised in that including:
Receiver module, for receive the level-2 area in this level-1 area corresponding the oneth MGCF send by
The call request that the CS network user initiates；
Routing module, when the called number being used in determining described call request is non-IMS Subscriber Number,
Described call request is routed to the BGCF that this level-1 area is corresponding, so that a described BGCF root
The level-1 area that described called number belongs to is determined according to number segment information of each level-1 area of configuration, and by institute
State call request and be routed to the 2nd BGCF corresponding to level-1 area of described called number ownership, and then make
Described call request is routed to the CS net of the level-2 area of described called number ownership by described 2nd BGCF
Network；
Described routing module specifically for:
The address letter corresponding with the called number in described call request is inquired about from ENUM/DNS server
Breath；If inquiring about unsuccessfully, it is determined that described called number is non-IMS Subscriber Number, described ENUM/DNS takes
Business device storage has the address information that the IMS Subscriber Number of each level-1 area is corresponding；
Described routing module is additionally operable in inquiry from ENUM/DNS server and described call request
Before the address information that called number is corresponding, described called number is carried out HSS server lookup；If institute
State HSS server lookup failure, then inquiry and the quilt in described call request from ENUM/DNS server
The address information that code of calling out the numbers is corresponding.
5. a call routing device, it is characterised in that including:
Receiver module, for receiving the call request that a BGCF sends, described call request is by CS net
Network user initiates, a MGCF of the level-2 area of described CS network user ownership be sent to described CS
The I-CSCF corresponding to level-1 area of network user's ownership, and determine described call request at described I-CSCF
In called number be non-IMS Subscriber Number after, be routed to the described CS network user ownership level-1 area
A corresponding described BGCF, a described BGCF is true according to number segment information of each level-1 area of configuration
After the level-1 area of fixed described called number ownership, described call request is routed to described called number
2nd BGCF corresponding to level-1 area of ownership, wherein, described I-CSCF determines in described call request
Called number be that non-IMS Subscriber Number specifically includes: described called number is carried out by described I-CSCF
HSS server lookup；If described HSS server lookup failure, the most described I-CSCF is from ENUM/DNS
Server is inquired about the address information corresponding with the called number in described call request；If inquiring about unsuccessfully,
Then determining that described called number is non-IMS Subscriber Number, described ENUM/DNS server storage has each one-level
The address information that the IMS Subscriber Number in region is corresponding；
Routing module, for being routed to the level-2 area of described called number ownership by described call request
CS network.
6. device as claimed in claim 5, it is characterised in that described routing module specifically for:
Number segment information of each level-2 area in the level-1 area of the described called number ownership according to configuration,
Determine the level-2 area that described called number belongs to, and described call request is routed to described called number
2nd MGCF corresponding to level-2 area of ownership so that described call request is route by described 2nd MGCF
CS network to the level-2 area that described called number belongs to.
7. a call route system, it is characterised in that including:
I-CSCF equipment, including the device described in claim 4, for receiving two in this level-1 area
The call request initiated by the CS network user of the MGCF transmission that level region is corresponding；And determining
Stating the called number in call request is non-IMS Subscriber Number, then described call request is routed to basis one
The BGCF that level region is corresponding；
A described BGCF, number segment information for each level-1 area according to configuration determines described called number
The level-1 area of code ownership, and described call request is routed to the level-1 area of described called number ownership
The 2nd corresponding BGCF；
Described 2nd BGCF, including the device described in claim 5 or 6, is used for receiving a described BGCF
The call request sent, and described call request is routed to the level-2 area of described called number ownership
CS network.
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| CN110677844B (en) * | 2018-07-03 | 2022-04-08 | 中国电信股份有限公司 | Calling method, information interaction method, communication equipment and interaction platform |
Citations (2)
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| CN1929457A (en) * | 2006-09-22 | 2007-03-14 | 中国移动通信集团公司 | Method for message intercommunication of IMS domain and CS domain |
| CN101115224A (en) * | 2006-07-28 | 2008-01-30 | 华为技术有限公司 | Short message branching method and system for IMS network |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101115224A (en) * | 2006-07-28 | 2008-01-30 | 华为技术有限公司 | Short message branching method and system for IMS network |
| CN1929457A (en) * | 2006-09-22 | 2007-03-14 | 中国移动通信集团公司 | Method for message intercommunication of IMS domain and CS domain |
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