CN103701764B - A kind of nomadic method for limiting, system and equipment - Google Patents
A kind of nomadic method for limiting, system and equipment Download PDFInfo
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- CN103701764B CN103701764B CN201210370269.XA CN201210370269A CN103701764B CN 103701764 B CN103701764 B CN 103701764B CN 201210370269 A CN201210370269 A CN 201210370269A CN 103701764 B CN103701764 B CN 103701764B
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Abstract
A kind of nomadic method for limiting of disclosure, system and equipment.Nomadic method for limiting includes: a kind of nomadic method for limiting, including: receiving node receives the sip message that terminal is transmitted by VLAN；The access network type of described terminal is judged according to described VLAN；End message is sent to HSS with access network type information to inquire about corresponding nomadic restriction strategy；And I CSCF carries out nomadic restriction according to the Query Result of described HSS to described terminal.By the application, terminal can move freely in this VLAN, nor there is leakage password, information equivalent risk, and security is high.
Description
Technical field
The application relates to the communications field, particularly relates to a kind of nomadic method for limiting, system and equipment.
Background technology
Roaming is the term that mobile phone user commonly uses.The user referring to cellular mobile telephone exists
When leaving this area or this country, still can be continuing with their movement in some other area or country
Telephone bandset.Roaming is directed to mobile terminal.Such as, Pekinese mobile subscriber roams into Shanghai and makes
Use mobile phone.
The nomadic user of referring to utilizes identical or different terminal, (can in different access networks and access point
Different access network operators can be belonged to) obtain service, terminal can be by various ways such as WLAN
Access network.Such as, an in-company landline telephone, electricity can be beaten by different access points
Words.
Nomadic restriction refers to that user utilizes identical or different terminal only within the specific limits, not
Same access network and access point (may belong to different access network operators) obtain service, and terminal can
With by various ways access networks such as WLAN.Such as, an in-company landline telephone, only
Can be made a phone call by different access points at company's inside buildings.
For " nomadic restriction ", prior art uses at HSS(Home Subscriber Server；Return
Belong to client server) in join and determine user name and the method for IP address (including port numbers), will user
Name and IP address and port numbers binding.In IMS registration flow process, work as I-CSCF
(Interrogation-CSCF；Interrogating CSCF) inquiry HSS time find HSS joins to have determined user name
Port numbers is included with IP(), now, if request registered user name includes port numbers with IP() with
Join fixed being consistent in HSS, then register flow path can continue；Otherwise this terminal cannot complete registration.But
Being that the method for user bound name and IP address makes terminal immovable, otherwise terminal is by unavailable.
Another kind of prior art, i.e. Centrex are then only capable of by the way of human configuration user profile opening
Logical user account, accordingly, it is possible to the risk of information leakage can be brought.In so Centrex business
There is stolen risk in equipment and/or information.
Summary of the invention
The application aims to provide a kind of terminal and can move freely and safe and reliable trip in restriction scope
Herd restriction technologies scheme.
One embodiment of the application provides a kind of nomadic method for limiting, including: receiving node connects
Receive the sip message that terminal is transmitted by VLAN；The access of described terminal is judged according to described VLAN
Net type；End message is sent to HSS with access network type information to inquire about corresponding nomadic restriction plan
Slightly；I-CSCF carries out nomadic restriction according to the Query Result of described HSS to described terminal.
The application further embodiment provides a kind of nomadic restriction system, including: receiving node,
Receive the sip message that terminal is transmitted by VLAN, judge connecing of described terminal according to described VLAN
Network types, sends end message to HSS with access network type information；Described HSS, according to institute
State end message and inquire about corresponding nomadic restriction strategy with described access network type information, Query Result is sent out
Deliver to I-CSCF；And described I-CSCF, according to described Query Result, described terminal is carried out nomadic
Limit.
The application further embodiment provides a kind of receiving node equipment, including: transceiver module,
Receive the sip message that terminal is transmitted by VLAN；And judge module, sentence according to described VLAN
The access network type of disconnected described terminal；Described transceiver module the most just end message is believed with access network type
Breath sends to HSS to inquire about corresponding nomadic strategy.
The application further embodiment provides a kind of HSS equipment, including: transceiver module, connect
Receiving the DIAMETER UAR message that I-CSCF sends, wherein said DIAMETER UAR disappears
Breath includes end message and the access network type information of counterpart terminal；And enquiry module, according to described
End message inquires about corresponding nomadic restriction strategy with described access network type information；Wherein, described transmitting-receiving
Module also returns Query Result to described I-CSCF.
By presently filed embodiment, whether receiving node can be nomadic by VLAN distinguishing terminal
Limiting terminal, and terminal can move freely in this VLAN, nor exist leakage password,
Information equivalent risk, security is high.
Accompanying drawing explanation
Fig. 1 is the nomadic restriction system of an embodiment according to the application；
Fig. 2 is the nomadic method for limiting 1000 of an embodiment according to the application；
Fig. 3 is the nomadic method for limiting 2000 of another embodiment according to the application；
Fig. 4 is the nomadic restriction system of another embodiment according to the application；
Fig. 5 is the receiving node equipment of an embodiment according to the application；
Fig. 6 is the receiving node equipment of an embodiment according to the application；And
Fig. 7 is the HSS of an embodiment according to the application.
Detailed description of the invention
Describe presently filed embodiment below in conjunction with the accompanying drawings in detail.
Fig. 1 is the nomadic restriction system of an embodiment according to the application.As it is shown in figure 1, this is
System includes receiving node 10, I-CSCF20 and HSS30.Skilled artisan would appreciate that reception
Node 10 can be multiple, such as SBC(Session Border Controller；Session Border Controller)
Or AGCF(Access Gateway control Function, AGCF) etc., below
Illustrate as a example by receiving node 10 is as SBC.SBC10 receives the SIP that terminal is transmitted by VLAN
Message, judges the access network type of terminal, and is believed with access network type by end message according to VLAN
Breath sends to HSS30.HSS30 is according to corresponding nomadic of end message and access network type information inquiry
Restriction strategy, and Query Result is sent to I-CSCF20.I-CSCF20 enters according to described Query Result
The nomadic restriction that row is corresponding.
Fig. 2 is the nomadic method for limiting 1000 of an embodiment according to the application.Below in conjunction with Fig. 1
Shown system describes the method 1000 shown in Fig. 2.
As it is shown in figure 1, in step S110, SBC10 receives the sip message that terminal is transmitted by VLAN.
Such as, SBC 10 receives the sip message that terminal is transmitted by VLAN.Such as, SBC 10 receives terminal 1
The SIP1 message transmitted by WLAN1, and the SIP2 that terminal 2 is transmitted by WLAN2 disappears
Breath.
In step S120, SBC10 judges the access network type of terminal according to VLAN.Such as, SBC10
Can judge to be transmitted the access network class of the terminal of message by VLAN by identifying different VLAN
Type.Such as, the terminal in VLAN1 is enterprise UE terminal, needs to carry out nomadic restriction, then SBC10
Can be to send SIP1 message by VLAN1 by identification terminal 1, thus judge the access network class of terminal 1
Type is that enterprise accesses VLAN, say, that the nomadic Limit Type of terminal 1 is that enterprise is nomadic restricted
Type.The most such as, the terminal in VLAN2 is domestic user terminal, then SBC10 can pass through identification terminal
2 is to send SIP2 message by VLAN2, thus judges that the access network type of terminal 2 is that family accesses
VLAN, say, that the nomadic Limit Type of terminal 2 is the nomadic Limit Type of family.
In step S130, end message is sent to HSS30 by receiving node 10 with access network type information
To inquire about corresponding nomadic restriction strategy.Although it will be appreciated by those skilled in the art that and being described herein as connecing
Receive node 10 to be sent to HSS30 with access network type information by end message, but can have multiple enforcement
Mode.Such as, receiving node 10(such as SBC10) can be directly by with end message and access
The sip message of net type information sends to HSS30；Or, receiving node 10(such as SBC10) and can
The message that other can carry end message and access network type information sends to HSS30；Or,
Receiving node 10(such as SBC10) can will carry the message of end message and access network type information
(including sip message) sends to other node devices (such as I-CSCF20), is then saved by these other
Point device is transmitted to HSS30；Or, receiving node 10(such as SBC10) and can will carry terminal
The message (including sip message) of information and access network type information sends to other node devices (such as
I-CSCF20), these other node devices generate other carried terminal according to the message received
Information and the message of access network type information, be then sent to HSS30.
In step S140, I-CSCF20 carries out nomadic restriction according to the Query Result of HSS30 to terminal.
Such as, HSS30 prestores the corresponding relation of end message and access network type information.SBC10
The access network type letter will judged in the information (at least including IP information) of terminal 1 and step S120
Breath (such as enterprise accesses VLAN) sends to HSS30, so that HSS30 is according to end message and access
The nomadic strategy of the terminal 1 that the inquiry of net type information is pre-stored within HSS30.
If the end message that HSS30 receives and access network type information are believed with the terminal self stored
Cease consistent with access network type information corresponding relation, then the result that I-CSCF20 returns according to HSS30 continues
Continue the registration process of terminal and carry out corresponding nomadic restriction.If the end message that HSS30 receives
The end message and the access network type information corresponding relation that store with self with access network type information differ
Cause, then the registration process of the result terminating terminal that I-CSCF20 returns according to HSS30.
Such as, if the information of terminal 1 that receives of HSS30 and access network type information store with self
The information of terminal 1 consistent with the corresponding relation of access network type information, then return to I-CSCF20 and look into
Ask result.Query Result shows that terminal 1 is mated with its access network type and terminal 1 is enterprise UE terminal,
Need to carry out nomadic restriction.Then I-CSCF20 continues the subsequent registration of terminal 1 according to this Query Result
Process also carries out nomadic restriction (i.e. terminal 1 can only carry out nomadic in certain region) to terminal 1.
If the end that the information of the terminal 2 that HSS30 receives and access network type information store with self
The information of end 2 is consistent with the corresponding relation of access network type information, then return inquiry knot to I-CSCF20
Really.Query Result shows that terminal 2 is mated with its access network type and terminal 2 is domestic user terminal, no
Need to carry out nomadic restriction.Then I-CSCF20 continues the subsequent registration of terminal 2 according to this Query Result
Process also carries out nomadic restriction (i.e. not limiting the nomadic scope of terminal 2) to terminal 2.
If the end that the information of the terminal 1 that HSS30 receives and access network type information store with self
The information of end 1 and the corresponding relation of access network type information are inconsistent, then return inquiry to I-CSCF20
As a result, Query Result shows that terminal 1 is not mated with its access network type.Then I-CSCF20 is according to being somebody's turn to do
The subsequent registration process of Query Result terminating terminal 1.
Fig. 3 is the nomadic method for limiting 2000 of an embodiment according to the application.Below in conjunction with Fig. 1
Shown system describes the method 2000 shown in Fig. 3.Step S210 of method 2000 and step S220
Similar to step S110 of method 1000 and step S120, do not repeat them here.
In step S230, receiving node 10 increases correspondence in a sip message according to access network type
The mark of access network type.Such as, judge that the access network type of terminal 1 is that enterprise connects as SBC10
Enter VLAN type, then can the PVNI message header field in the SIP1 message that terminal 1 sends increase
Add subdomain name content, such as Enterprise, represent that the access network type of this terminal 1 is that enterprise accesses
VLAN, this terminal 1 is enterprise UE terminal, belongs to the nomadic Limit Type of enterprise.When SBC10 sentences
Breaking, the access network type of terminal 2 be that family accesses VLAN type, the then SIP2 sent in terminal 2
PVNI message header field in message increases subdomain name content, such as Internet, represents this terminal
The access network type of 2 is that family accesses VLAN, and this terminal 2 is domestic user terminal, belongs to family
Nomadic Limit Type.
In step S240, amended sip message is sent to I-CSCF20 by receiving node 10.
In step S250, I-CSCF20 generates DIAMETER UAR according to amended sip message
Message, this DIAMETER UAR message includes end message and access network type information.Such as,
DIAMETER UAR message includes the user visiting net that the PVNI header field according to sip message extracts
Network identification information, wherein this user visiting network identification information can include the access network type information of terminal,
The access network that such as this terminal is corresponding is that enterprise accesses VLAN type or family accesses VLAN type.
Such as, I-CSCF20 receives amended SIP1 message, then generate according to this SIP1 message
DIAMETER UAR message 1, wherein this DIAMETER UAR message 1 includes the letter of terminal 1
The use that breath (at least including the IP of terminal 1) and the PVNI message header field according to SIP1 message extract
Family visited network identification information, this user visiting network identification information includes that enterprise accesses vlan information,
The subdomain name content increased in i.e. PVNI message header field, such as Enterprise.I-CSCF20 receives
To amended SIP2 message, then generate DIAMETER UAR message 2 according to this SIP2 message,
Wherein this DIAMETER UAR message 2 includes the information (at least including the IP of terminal 2) of terminal 2
And the user visiting network identification information of the PVNI message header field extraction according to SIP2 message, this use
Family visited network identification information includes that family accesses vlan information, i.e. increase in PVNI message header field
Subdomain name content, such as Internet.
In step S260, DIAMETER UAR message is sent to HSS30 by I-CSCF20.Step
In rapid S270, HSS30 is according to the end message in DIAMETER UAR message and access network class
The nomadic strategy that type information inquiry terminal is corresponding, and the Query Result returned.In step S280,
I-CSCF20 carries out nomadic restriction according to the Query Result of HSS30 to terminal.
If the terminal that the end message that HSS30 receives and access network type information store with self
Information is consistent with access network type information corresponding relation, then the knot that I-CSCF20 returns according to HSS30
Fruit continues the registration process of terminal and carries out corresponding nomadic restriction.If the terminal that HSS30 receives
The end message of information and access network type information and self storage and access network type information corresponding relation
Inconsistent, then the registration process of the result terminating terminal that I-CSCF20 returns according to HSS30.
Select as one, under each VLAN, can include multiple different user terminal, but embodiment party
Method is same as described above.Selecting as one, receiving node (such as SBC) can connect multiple different VLAN
Under domestic consumer and/or enterprise customer.Such as, as shown in Figure 4, terminal 3 is by VLAN3 and reception
Node 10 connects, and terminal 4 is connected with receiving node 10 by VLAN4, and terminal 5 is passed through VLAN5 and connect
Receiving node 10 to connect, terminal 6 is connected with receiving node 10 by VLAN6.Below with receiving node 10
For illustrating as a example by SBC.
Then in step S210, SBC 10 receives SIP3 message, the end that terminal 3 is transmitted by WLAN3
Hold the SIP5 message that the 4 SIP4 message transmitted by WLAN4, terminal 5 are transmitted by WLAN5
And the SIP6 message that terminal 6 is transmitted by WLAN6.
In step S220, SBC 10 judges the access network type of terminal according to VLAN.Such as, such as,
SBC 10 is to judge the access network of terminal 3 by VLAN3 transmission SIP3 message by identification terminal 3
Type is enterprise's access network type 3, and the access network type similarly identifying terminal 4 is enterprise's access network
Type 4, the access network type of terminal 5 is family's access network type 5, and the access network type of terminal 6 is family
Front yard access network type 6.
In step S230, SBC10 increases the access of correspondence in a sip message according to access network type
The mark of net type.Such as, SBC10 increases the mark of enterprise's access network 3 in SIP3 message,
In SIP4 message, increase the mark of enterprise's access network 4, SIP5 message increases family's access network
The mark of 5, increases the mark of family's access network 6 in SIP6 message.
In step S240, amended sip message is sent to I-CSCF20 by SBC10.
In step S250, I-CSCF20 generates DIAMETER UAR according to amended sip message
Message, this DIAMETER UAR message includes end message and access network type information.Such as,
I-CSCF20 receives amended SIP3 message, then generate DIAMETER according to this SIP1 message
UAR message 3, wherein this DIAMETER UAR message 3 includes that the information of terminal 3 (is at least wrapped
Include the IP of terminal 3) and the mark of mark enterprise access network 3.Similarly, generate according to SIP4
DIAMETER UAR message 4, DIAMETER UAR message 4 includes the information of terminal 4 (extremely
Include the IP of terminal 4 less) and the mark of mark enterprise access network 4；Generate according to SIP5
DIAMETER UAR message 5, DIAMETER UAR message 5 includes the information of terminal 5 (extremely
Include the IP of terminal 5 less) and the mark of mark family access network 5；And generate according to SIP6
DIAMETER UAR message 6, DIAMETER UAR message 6 includes the information of terminal 6 (extremely
Include the IP of terminal 6 less) and the mark of mark family access network 6.
In step S260, DIAMETER UAR message is sent to HSS30 by I-CSCF20.And
In step S170, HSS30 is according to the end message in DIAMETER UAR message and access network
The nomadic strategy that type information inquiry terminal is corresponding, and return Query Result to I-CSCF20.Step
In S280, I-CSCF20 carries out nomadic restriction according to the Query Result of HSS to terminal.
If the terminal that the end message that HSS30 receives and access network type information store with self
Information is consistent with access network type information corresponding relation, then the knot that I-CSCF20 returns according to HSS30
Fruit continues the registration process of terminal and carries out corresponding nomadic restriction.If the terminal that HSS30 receives
The end message of information and access network type information and self storage and access network type information corresponding relation
Inconsistent, then the registration process of the result terminating terminal that I-CSCF20 returns according to HSS30.
Fig. 5 is the receiving node equipment of an embodiment according to the application.Below with receiving node
Equipment is to illustrate as a example by SBC.As it can be seen, SBC10 includes transceiver module 101, judges mould
Block 102.Transceiver module 101 receives the sip message that terminal is transmitted by VLAN；Judge module 102
The access network type of terminal is judged according to VLAN.Transceiver module 10 is also by end message and access network
Type information sends to HSS30 to inquire about corresponding nomadic restriction strategy.Shown in Fig. 1
System describes the receiving node equipment shown in Fig. 4.
Such as, transceiver module 101 receives the SIP1 message that terminal 1 is transmitted by WLAN1, and whole
The SIP2 message that end 2 is transmitted by WLAN2.
Judge module 102 is by identifying that different VLAN judges to be transmitted the terminal of message by VLAN
Access network type.Such as, the terminal in VLAN1 is enterprise UE terminal, needs to carry out nomadic limit
System, then judge module 102 is to judge terminal by VLAN1 transmission SIP1 message by identification terminal 1
The access network type of 1 is enterprise's access network type.The most such as, the terminal in VLAN2 is domestic consumer
Terminal, it is not necessary to carry out nomadic restriction, then judge module 102 is to pass through VLAN2 by identification terminal 2
Send SIP2 message and judge that the access network type of terminal 2 is family's access network type.Transceiver module 10
The most just end message (at least including the IP information of terminal) sends extremely with access network type information
HSS30, so that the nomadic restriction strategy that HSS30 inquiry terminal is corresponding.
Fig. 6 is the receiving node equipment of another embodiment according to the application.Below to receive joint
Point device is to illustrate as a example by SBC.As it can be seen, SBC10 is except including transceiver module 101 and sentencing
Outside disconnected module 102, also include modified module 103.Modified module 103 exists according to access network type
Sip message increases the mark of the access network type of correspondence.
Such as, the modified module 103 PVNI message header field in SIP1 message increases in subdomain name
Hold, such as Enterprise, represent that the access network type of this terminal 1 is that enterprise accesses VLAN, should
Terminal 1 is enterprise UE terminal, belongs to the nomadic Limit Type of enterprise.Modified module 103 is at SIP2
PVNI message header field in message increases subdomain name content, such as Internet, represents this terminal
The access network type of 2 is that family accesses VLAN, and this terminal 2 is domestic user terminal, belongs to family
Nomadic Limit Type.
Amended sip message is also sent to I-CSCF20 by transceiver module 10.
Fig. 7 is the HSS of an embodiment according to the application.HSS30 include transceiver module 301 with
And enquiry module 302.Transceiver module 301 receives the DIAMETER UAR message that I-CSCF20 sends,
Wherein DIAMETER UAR message includes the access network information of end message and terminal；Enquiry module
The presets list is inquired about by 302 according to DIAMETER UAR message.Transceiver module 301 also to
I-CSCF20 returns Query Result.Below in conjunction with the system shown in Fig. 1, the HSS shown in Fig. 5 is described.
Such as, HSS30 prestores the corresponding relation of end message and access network type information.Transmitting-receiving mould
Block 301 receive I-CSCF20 send by DIAMETER UAR message.Enquiry module according to
Prestored information (is such as arranged by end message and access network information that DIAMETER UAR message includes
Table) inquire about.Query Result is also returned to I-CSCF20 by transceiver module 301.
Such as, the terminal 1 that HSS30 includes according to the DIAMETER UAR message 1 received
IP information and enterprise's access network information, the presets list has inquired corresponding information.Namely
Say, the terminal 1 that the information of the terminal 1 that HSS30 receives and access network type information store with self
Information consistent with the corresponding relation of access network type information, then to I-CSCF20 return Query Result.
Query Result shows that terminal 1 is mated with its access network type and terminal 1 is enterprise UE terminal, needs
Carry out nomadic restriction.I-CSCF20 is so made to continue the follow-up note of terminal 1 according to this Query Result
Volume process also carries out nomadic restriction (i.e. terminal 1 can only carry out nomadic in certain region) to terminal 1.
Such as, the IP of the terminal 2 that HSS30 includes according to the DIAMETER UAR message 2 received
Information and family's access network information, inquired corresponding information in the presets list.It is to say,
The information of the terminal 2 that the information of the terminal 2 that HSS30 receives and access network type information store with self
Consistent with the corresponding relation of access network type information, then return Query Result to I-CSCF20.Inquiry knot
Fruit shows that terminal 2 is mated with its access network type and terminal 2 is domestic user terminal, it is not necessary to swim
Herd restriction.So that I-CSCF20 continues the subsequent registration process of terminal 2 also according to this Query Result
Terminal 2 is carried out nomadic restriction (i.e. not limiting the nomadic scope of terminal 2).
The most such as, the terminal 1 that HSS30 includes according to the DIAMETER UAR message 1 received
IP information and enterprise's access network information, inquire about in the presets list less than corresponding information.Namely
Say, the terminal 1 that the information of the terminal 1 that HSS30 receives and access network type information store with self
The corresponding relation of information and access network type information is inconsistent, then return Query Result to I-CSCF20.
Query Result shows that terminal 1 is not mated with its access network type.So that I-CSCF20 looks into according to this
Ask the subsequent registration process of result terminating terminal 1.
These are only the preferred embodiment of the application, not thereby limit the scope of the claims of the application,
Every equivalent structure utilizing present specification and accompanying drawing content to be made or equivalence flow process conversion, or directly
Connect or be indirectly used in other relevant technical field, be the most in like manner included in the patent protection model of the application
In enclosing.
Claims (7)
1. a nomadic method for limiting, including:
Receiving node receives the sip message that terminal is transmitted by VLAN；
The access network type of described terminal is judged according to described VLAN；
End message is sent to HSS with access network type information to inquire about corresponding nomadic restriction strategy；And
I-CSCF carries out nomadic restriction according to the Query Result of described HSS to described terminal.
2. the method for claim 1, described end message and access network type information transmission to HSS includes with the step inquiring about corresponding nomadic restriction strategy:
Described receiving node increases the mark of the access network type of correspondence in described sip message according to described access network type；
Amended sip message is sent to described I-CSCF；
Described I-CSCF generates DIAMETER UAR message according to described amended sip message, and wherein said DIAMETER UAR message includes described end message and described access network type information；And
Described DIAMETER UAR message is sent to described HSS.
3. a nomadic restriction system, including:
Receiving node, receives the sip message that terminal is transmitted by VLAN, judges the access network type of described terminal according to described VLAN, is sent to HSS with access network type information by end message；
Described HSS, inquires about corresponding nomadic restriction strategy according to described end message with described access network type information, sends Query Result to I-CSCF；And
Described I-CSCF, carries out nomadic restriction according to described Query Result to described terminal.
4. system as claimed in claim 3, described receiving node increases the mark of the access network type of correspondence in described sip message, and sends amended sip message to described I-CSCF always according to described access network type；And
Described I-CSCF generates DIAMETER UAR message always according to described amended sip message, and wherein said DIAMETER UAR message includes described end message and described access network type information, and sends described DIAMETER UAR message to described HSS.
5. a receiving node equipment, including:
Transceiver module, receives the sip message that terminal is transmitted by VLAN；And
Judge module, judges the access network type of described terminal according to described VLAN；
Described transceiver module the most just end message sends with access network type information to HSS to inquire about corresponding nomadic restriction strategy.
6. equipment as claimed in claim 5, also includes:
Modified module, increases the mark of the access network type of correspondence in described sip message according to described access network type；
Amended sip message is sent to I-CSCF by described transceiver module.
7. a HSS equipment, including:
Transceiver module, receives the DIAMETER UAR message that I-CSCF sends, and wherein said DIAMETER UAR message includes end message and the access network type information of counterpart terminal；And
Enquiry module, inquires about corresponding nomadic restriction strategy according to described end message with described access network type information；
Wherein, described transceiver module also returns Query Result to described I-CSCF.
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