CN105306482B - A kind of calling-control method of the flooding addressing towards special applications - Google Patents
A kind of calling-control method of the flooding addressing towards special applications Download PDFInfo
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- CN105306482B CN105306482B CN201510771598.9A CN201510771598A CN105306482B CN 105306482 B CN105306482 B CN 105306482B CN 201510771598 A CN201510771598 A CN 201510771598A CN 105306482 B CN105306482 B CN 105306482B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/1066—Session management
- H04L65/1069—Session establishment or de-establishment
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/1066—Session management
- H04L65/1073—Registration or de-registration
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/1066—Session management
- H04L65/1101—Session protocols
- H04L65/1104—Session initiation protocol [SIP]
Abstract
The calling-control method for the flooding addressing towards special applications that the invention discloses a kind of obtains the address and first service address of node of the first client this method comprises: the first client accesses first service node, registers the address information of the first client；Second client accesses second service node, obtains the address and second service address of node of the second client, registers the address information of the second client；First client initiates calling dial request to the second client；First service node can not find out the registration information of the second client, and into the whole network, other service nodes initiate flooding addressing；Second service node receives flooding solicited message, finds the registration information of the second client, carries out the conversation switching processing of call request signaling；First client and the second client are successfully established session.This method realize for it is anti-ruin, client access is not fixed, the flooding for the special applications demand of representative such as mobility strong addresses.
Description
Technical field
The present invention relates to network addressing technical fields, more particularly to a kind of exhaling for flooding addressing towards special applications
It is control method.
Background technique
Currently, SIP (Session Initiation Protocol, session initiation protocol) is widely used in VoIP
In (Voice over Internet Protocol, the networking telephone) system, since voip technology is with easy of integration, at low cost
Honest and clean, the features such as application method is flexible, gradually existing from the application based on cable network to the application development based on wireless network, and
It is used widely in mobile, telecom operators core networks, the application development of other just oriented special dimensions becomes at present
Gesture.Regardless of being which kind of application, addressing is all the essential attribute of VoIP system.
There are two main classes for the addressing method of ordinary meaning, and directly addressing and flooding address.Directly addressing is based on accurate
Location management message carry out the directly addressing based on application layer unicast mode, be suitable for centralized management framework location management,
Based on visiing based on the whole network location updating under ownership mode position management and distributed management architecture under distributed management architecture
Mode position management is visited, only one service node of the whole network in centralized management framework location management, by its unique management the whole network
All clients location management map information has multiple clothes based on the whole network in ownership mode position management under distributed management architecture
Business node, each service node manage its location management map information for belonging to client, are based under distributed management architecture complete
The whole network has multiple service nodes in the visit mode position management of net location updating, and each service node safeguards that all the whole networks are all
The location management map information of client, all clients access where just by service node maintenance and management where, together
When notify other service nodes of the whole network about the update of the location management map information of the mobile terminal by the new service node,
This addressing system position administration overhead under distributed management architecture is relatively large, and addressing overhead is relatively small.
Flooding addressing is then to carry out the flooding of application layer multicast or broadcast mode due to location management message inaccuracy
Addressing, is suitable for the visit mode position management under distributed management architecture based on local update, and the whole network has multiple service nodes,
Each service node only safeguards the location management map information of local access client, and where all clients access just by which
In service node maintenance and management, this mode location management expense is relatively small, and addressing overhead is relatively large.
Currently it is widely used in the addressing method of the operator core networks such as movement, telecommunications, is the IMS (IP used
Multimedia Subsystem, IP multimedia subsystem) thinking, that is, use direct addressing method, this method is for net
Network is stable, reliable operator core network environmental effect is preferable.But for it is anti-ruin, client access is not fixed, mobility
The special applications demand that Qiang Dengwei is represented, is needed to cooperate the visit mode position management based on local update, is sought using flooding
Location method, but traditional addressing technique based on SIP does not support flooding addressing method, and special applications are needed in the prior art
The flooding addressing method asked simultaneously is not present.
Summary of the invention
The calling-control method for the flooding addressing towards special applications that the object of the present invention is to provide a kind of, to solve to pass
The problem of system method does not support flooding to address, realize for it is anti-ruin, client access is not fixed, mobility strong etc. is representative
Special applications demand flooding addressing.
In order to solve the above technical problems, the present invention provides a kind of Call- Control1 side of flooding addressing towards special applications
Method, this method comprises:
First client accesses first service node, obtains the address and first service address of node of the first client,
The address information of the first client is registered at first service node；
Second client accesses second service node, obtains the address and second service address of node of the second client,
The address information of the second client is registered at second service node；
First client initiates calling dial request to second client；
Information is locally registered according to dial request lookup in the first service node, can not find out the registration letter of the second client
Breath, then into the whole network, other service nodes initiate flooding addressing, and into the whole network, each other service node are sent general
Searching request information；Wherein, flooding solicited message is call request signaling；
The second service node receives the flooding solicited message sent by the first service node, searches local
Registration information finds the registration information of the second client, carries out the conversation switching processing of call request signaling；
First client is successfully established session with the second client and is gone forward side by side by first service node and second service node
Industry business data communication.
Preferably, first client initiates calling dial request to second client, comprising:
First client dials the telephone number of second client, initiates calling dial request.
Preferably, the application layer identification SIP URI of calling dial request are as follows: the telephone number of the second client the
The address of one service node；The flooding solicited message be it is corresponding with the address of the service node of flooding next-hop,
The flooding solicited message sent by first service node are as follows: the service of the telephone number@flooding next-hop of the second client
Address of node.
Preferably, first client accesses first service node, obtains address and the first service of the first client
Address of node, after the address information that the first client is registered at the first service node further include:
Establish the mapping relations between first service address of node and the address of the first client.
Preferably, second client accesses the second network node, obtains address and the second service of the second client
Address of node, after the address information that the second client is registered at the second service node, further includes:
Establish the mapping relations between second service address of node and the address of the second client.
Preferably, the mapping relations between the first service address of node and the address of the first client are as follows: first
The application layer identification of client<->the first client Network Layer identities.
Preferably, the mapping relations between the second service address of node and the address of the second client are as follows: second
The application layer identification of client<->the second client Network Layer identities.
Preferably, the application layer mark are as follows: the address of telephone number service node, the Network Layer identities are signaling
IP address and signaling port numbers.
Preferably, after described each service node other into the whole network sends flooding solicited message, further includes:
The service node of the registration information less than the second client is searched according to standard protocol specification to first service node
Returning response 4XX, 5XX or 6XX.
Preferably, the second service node receives the flooding information sent by first service node, searches local
Registration information finds the registration information of the second client, after the conversation switching processing for carrying out call request signaling, also wraps
It includes:
Second client ring finds the first client using direct addressing method, communicates with the foundation of the first client
Connection.
A kind of calling-control method of flooding addressing towards special applications provided by the present invention, the first client termination
Enter first service node, obtain the address and first service address of node of the first client, is registered at first service node
The address information of first client；Second client accesses second service node, obtains address and the second clothes of the second client
It is engaged in address of node, the address information of the second client being registered at second service node；First client is to the second client
Initiate calling dial request；Information is locally registered according to dial request lookup in first service node, can not find out the second client
Registration information, then into the whole network, other service nodes initiate flooding addressing, and into the whole network, each other service node are equal
Send flooding solicited message；Second service node receives the flooding solicited message sent by first service node, searches
Information is locally registered, finds the registration information of the second client, carries out the conversation switching processing of call request signaling；First visitor
Family end is successfully established session with the second client and carries out business datum and led to by first service node and second service node
Letter.
As it can be seen that this method uses the flooding solicited message with particular provisions, to other in addition to first service node
Each service node sends flooding solicited message, carries out the addressing of the flooding based on SIP by signalling multicast mode, and
Without changing basic service control flow of SIP during traditional directly addressing, general search is not supported for solving conventional method
The problem of rope addresses, meet with it is anti-ruin, client access is not fixed, mobility strong etc. is the special applications demand of representative, realize
The flooding addressing method based on SIP towards special applications, can be in the Signaling Relay for not changing traditional direct addressing method
Under the premise of process, complete the flooding addressing based on SIP, thus meet with it is anti-ruin, client access is not fixed, mobility strong
Deng the special applications demand for representative, solve the problems, such as that conventional method does not support that flooding addresses, realize for it is anti-ruin, client
Terminate into be not fixed, mobility strong etc. for the special applications demand of representative flooding addressing.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is a kind of process of the calling-control method of flooding addressing towards special applications provided by the present invention
Figure；
Fig. 2 is a kind of VoIP system function of the calling-control method of the flooding addressing towards special applications in the present invention
Entity schematic diagram；
Fig. 3 is a kind of business process map of the calling-control method of the flooding addressing towards special applications in the present invention.
Specific embodiment
Core of the invention is to provide a kind of calling-control method of flooding addressing towards special applications, to solve to pass
The problem of system method does not support flooding to address, realize for it is anti-ruin, client access is not fixed, mobility strong etc. is representative
Special applications demand flooding addressing.
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention
Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Referring to FIG. 1, Fig. 1 is a kind of Call- Control1 side of flooding addressing towards special applications provided by the present invention
The flow chart of method, this method comprises:
S11: the first client accesses first service node, obtains the address of the first client and the ground of first service node
The address information of the first client is registered in location at first service node；
Wherein, after the address information for registering the first client, first service address of node and the first client are established
Address between mapping relations.
Wherein, the mapping relations between first service address of node and the address of the first client are as follows: the first client
Application layer identification<->the first client Network Layer identities.The application layer mark are as follows: the ground of telephone number service node
Location, the Network Layer identities are signaling IP address and signaling port numbers.That is the application layer of the first client identifies are as follows: the first client
The telephone number@first service address of node at end, the Network Layer identities of the first client are the signaling IP of the first client
Location and signaling port numbers.
S12: the second client accesses second service node, obtains the address of the second client and the ground of second service node
The address information of the second client is registered in location at second service node；
Wherein, after the address information for registering the second client, second service address of node and the second client are established
Address between mapping relations.
Wherein, the mapping relations between second service address of node and the address of the second client are as follows: the second client
Application layer identification<->the second client Network Layer identities.That is the application layer of the second client identifies are as follows: the second client
Telephone number@second service address of node, the Network Layer identities of the second client are the signaling IP address and letter of two clients
Enable port numbers.
It should be noted that S11 and S12 is coordination, S13 is entered after S11, S13 is entered after S12.
S13: the first client initiates calling dial request to the second client；
Wherein, the first client dials the telephone number of the second client, initiates calling dial request.Calling dial request
Application layer identification SIP URI are as follows: the telephone number first service address of node of the second client；
S14: information is locally registered according to dial request lookup in first service node, can not find out the registration letter of the second client
Breath, then into the whole network, other service nodes initiate flooding addressing, and into the whole network, each other service node are sent general
Searching request information；
Wherein, flooding solicited message is call request signaling.Flooding solicited message is the application of calling dial request
Layer identification SIP URL.
Wherein, flooding solicited message is corresponding with the address of the service node of flooding next-hop, by the first clothes
The flooding solicited message that business node is sent are as follows: the ground of the service node of the telephone number@flooding next-hop of the second client
Location.
Wherein, first service node is after into the whole network, each other service node send flooding solicited message,
The service node of the registration information less than the second client is searched according to standard protocol specification to first service node returning response
4XX, 5XX or 6XX.
Responding 4XX, 5XX or 6XX is non-successful information, shows that the service node for returning to the response is objective there is no second
The registration information at family end.
S15: second service node receives the flooding solicited message sent by first service node, and lookup is locally registered
Information finds the registration information of the second client, carries out the conversation switching processing of call request signaling；
Wherein, after the conversation switching that second service node carries out call request signaling is handled, the second client ring, and
First client is found using direct addressing method, establishes and communicates to connect with the first client.
S16: the first client is successfully established session with the second client by first service node and second service node
Industry of going forward side by side business data communication.
Specifically, described in a kind of calling-control method of flooding addressing towards special applications provided by the invention
In general special applications have the feature that with survivability demand, the whole network using distributed management architecture mode, client
Strong mobility, location management use visit mode approach, location updating mode to use local update mode, client with high motor-driven
Based on nomadic mode, communication in moving situation is few, and on-position is not fixed.In this case, new when there is mobile terminal to be linked into
After network node, i.e. wireless access point, router etc., registered directly at new service node, and only in local update
Its address (ADDR mapping relations, i.e. client application layer identification<->client network layer identification, application layer mark are as follows: telephone number clothes
Business address of node, Network Layer identities are signaling IP address and signaling port numbers.In this way, other service nodes are not aware that the shifting
The address (ADDR mapping relations of dynamic client are changed.
Flooding solicited message is call request signaling, and flooding solicited message is the application layer identification of calling dial request
SIP URL, flooding solicited message, that is, Request URI are the application layer identification in the first row of sip request message, the application
Mark is for describing the next-hop serving node address based on destination client phone number, the i.e. address of sip request message
A username portion in SIP URI fills out destination client phone number, and next-hop service node signaling is filled out in area information part
Address.SIP URI are as follows: user name@area information.
Signalling multicast mechanism are as follows: signalling route link during Signaling Relay is forwarded to next in demand signalling
When jumping service node, while demand signalling being forwarded at the reachable service node of all-network in control plane；Only safeguard
Demand signalling can be correctly routed at the client of destination by the service node of destination client address (ADDR mapping relations,
Other service nodes respond non-successful response 4xx.
This method uses the flooding solicited message Request URI with particular provisions to carry out the completion of signalling multicast mode
Flooding addressing based on SIP, without changing basic service control flow of SIP during traditional directly addressing.Specifically
, it is equal to each other service node in addition to first service node using the flooding solicited message with particular provisions
Flooding solicited message is sent, the addressing of the flooding based on SIP is carried out by signalling multicast mode, is being passed without changing SIP
Basic service control flow during system directly addressing is full for solving the problems, such as that conventional method does not support flooding to address
Be enough it is anti-ruin, the special applications demand that client access is not fixed, mobility strong etc. is representative, realize the base towards special applications
In the flooding addressing method of SIP, can be completed under the premise of not changing the Signaling Relay process of traditional direct addressing method
Flooding addressing based on SIP, thus meet with it is anti-ruin, client access is not fixed, mobility strong etc. is answered for the special of representative
With demand, solve the problems, such as that conventional method does not support flooding to address, realize for it is anti-ruin, client access is not fixed, machine
The flooding addressing for the special applications demand that dynamic property Qiang Dengwei is represented.Specifically, referring to FIG. 2, Fig. 2 is a kind of face in the present invention
The VoIP system functional entity schematic diagram of the calling-control method addressed to the flooding of special applications.The VoIP system specifically wraps
It includes: client X, Y；Service node A, B, C, D；Wireless access point A, B, C, D；Router A, B, C, D；Register administrative unit and
Service Control Unit, by being interacted with SIP signaling between each functional entity and unit, and respectively independent operating and work
Make.Assuming that active client X access service node A, client Y access service node C.
Client X herein is the first client among the above, and client Y is the second client, and service node A is first
Service node, service node C are second service node.Service node B, service node C, service node D are in the whole network except service
Other service nodes of node A, there are three other service nodes here.
Client X and client Y is high motor-driven client, and high motor-driven client has the function of generating various businesses, base
Mobile in nomadic mode, access point is not fixed.Assuming that the visitor service node of current high motor-driven client X, Y is respectively to service section
Point A, C, the application layer mark of client X are as follows: the address of the number service node A of client X, the application layer identification of client Y
Are as follows: the address of the number@service node C of client Y, the Network Layer identities of client X are the address of client X, client Y's
Network Layer identities are the address of client Y.
Service node is the functional entity for handling various businesses signaling, completes calling and called side business client on a control plane
Between Signaling Relay function.Contain register administrative unit and Service Control Unit in each service node.
Wireless access point provides the access of versatility wireless communication means.
Router provides exchange and the routing function of various data, and provides based on carrying unified under IP technical system.
Register administrative unit is deployed on each service node, and major function is in local maintenance and to manage its service node
The address (ADDR mapping relations of upper accessed client, address (ADDR mapping relations are as follows: client application layer identification<->client network layer mark
Know.
Service Control Unit is deployed on each service node, and major function is to complete the Signaling Relay of various businesses, industry
Addressing and routing of business link setup and call signaling etc..It can not find out the feelings of purpose client registers information in information is locally registered
Under condition, needs to distinguish call request signaling and still come from other service nodes from local client, if the former, then initiate
Flooding addressing, otherwise responds 4XX., 5XX or 6XX.Responding 4XX, 5XX or 6XX is non-successful information, shows to return
There is no the registration informations of the second client for the service node of the response.
As shown in Fig. 2, client X access network nodes A, gets new client address X and the address service node A,
Client Y access network nodes C gets new client address Y and the address service node C；Client X to service node A
Place is registered, and client Y is registered at service node C；Client X initiates calling dial, application layer mark to client Y
Know the address number@service node A that Request URI is Y, for client X, control layer next-hop is service node
A；The Service Control Unit of service node A searches the registration information less than client Y, then initiates to initiate flooding in network-wide basis
Addressing, flooding solicited message Request URI are respectively the number@clothes of the number@service node B of client Y, client Y
The number@service node D of business node C, client Y；Service node B and D can not find out the registration information of client Y, respond 4XX；
Service node C finds the registration information of client Y, carries out Signaling Relay operation；Client X, Y is via service node A, C success
Establish session go forward side by side industry business data communication.A kind of Call- Control1 of flooding addressing towards special applications provided by the invention
Method is a kind of flooding addressing method for not changing traditional SIP directly addressing process.
Specifically, Fig. 3 is a kind of calling control of the flooding addressing towards special applications in the present invention in conjunction with Fig. 2 and Fig. 3
The business process map of method processed.Specific step is as follows:
Step 1, client X, Y is respectively connected to network node A, C, obtains client address X, Y, gets its access
Serving node address A, C；
Step 2, client X, Y arrives service node A, C respectively and initiates registration, and service node A, C are being locally created and are safeguarding
Registration information, i.e. address (ADDR mapping relations；
Step 3, client X initiates dial-up to client Y, and the solicited message Request URI of calling dial is number
Code Y@service node A；
Step 4, service node A, which is looked into, is locally registered information, can not find out the registration information of client Y；
Step 5, service node initiates flooding addressing, flooding to the whole network other service nodes, that is, service node B, C, D
Solicited message Request URI is respectively number Y@service node B, number Y@service node C, number Y@service node D；
Step 6, service node B, which is looked into, is locally registered information, can not find out the registration information of client Y, responds 4XX；
Step 7, service node C, which is looked into, is locally registered information, finds the registration information of client Y, continues conversation switching processing,
And give call request signalling route to client Y.Call request signaling, that is, flooding solicited message Request URI is number
Y@client Y address；
Step 8, service node D, which is looked into, is locally registered information, can not find out the registration information of client Y, responds 4XX；
Step 9, client Y ring, process of the follow-up process with traditional directly addressing.
Step 10, client Y finishing service Signaling Relay operates, data communication of commencing business.
Found out by above-mentioned detailed process, the flooding addressing method based on SIP towards special applications can not change
Under the premise of the Signaling Relay process of traditional direct addressing method, the flooding addressing based on SIP is completed, to meet with anti-
It ruins, the special applications demand that client access is not fixed, mobility strong etc. is representative.It is asked using the flooding with particular provisions
Information Request URI is sought, the addressing of the flooding based on SIP is carried out by signalling multicast mode, without changing SIP in tradition
Basic service control flow during directly addressing.For solving the problems, such as that conventional method does not support flooding to address, meet
With it is anti-ruin, client access is not fixed, mobility strong etc. for representative special applications demand.
In conclusion a kind of calling-control method of flooding addressing towards special applications provided by the present invention, the
One client accesses first service node, the address and first service address of node of the first client is obtained, in first service
The address information of the first client is registered at node；Second client accesses second service node, obtains the ground of the second client
The address information of the second client is registered in location and second service address of node at second service node；First client to
Second client initiates calling dial request；Information is locally registered according to dial request lookup in first service node, can not find out the
The registration information of two clients, then into the whole network, other service nodes initiate floodings addressing, into the whole network it is other each
Service node sends flooding solicited message；Second service node receives the flooding request sent by first service node
Information is locally registered in information, lookup, finds the registration information of the second client, carries out the connecting processing of call request signaling；
First client is successfully established session with the second client and is gone forward side by side industry business number by first service node and second service node
According to communication.
As it can be seen that this method uses the flooding solicited message with particular provisions, to other in addition to first service node
Each service node sends flooding solicited message, carries out the addressing of the flooding based on SIP by signalling multicast mode, and
Without changing basic service control flow of SIP during traditional directly addressing, general search is not supported for solving conventional method
The problem of rope addresses, meet with it is anti-ruin, client access is not fixed, mobility strong etc. is the special applications demand of representative, realize
The flooding addressing method based on SIP towards special applications, can be in the Signaling Relay for not changing traditional direct addressing method
Under the premise of process, complete the flooding addressing based on SIP, thus meet with it is anti-ruin, client access is not fixed, mobility strong
Deng the special applications demand for representative, solve the problems, such as that conventional method does not support that flooding addresses, realize for it is anti-ruin, client
Terminate into be not fixed, mobility strong etc. for the special applications demand of representative flooding addressing.
Above to it is provided by the present invention it is a kind of towards special applications flooding addressing calling-control method carry out
It is discussed in detail.Used herein a specific example illustrates the principle and implementation of the invention, above embodiments
Illustrate to be merely used to help understand method and its core concept of the invention.It should be pointed out that for the common skill of the art
, without departing from the principle of the present invention, can be with several improvements and modifications are made to the present invention for art personnel, these change
It is also fallen within the protection scope of the claims of the present invention into modification.
Claims (5)
1. a kind of calling-control method of the flooding addressing towards special applications characterized by comprising
First client accesses first service node, obtains the address and first service address of node of the first client, the
The address information of the first client is registered at one service node；
Second client accesses second service node, obtains the address and second service address of node of the second client, the
The address information of the second client is registered at two service nodes；
First client initiates calling dial request to second client；
Information is locally registered according to dial request lookup in the first service node, can not find out the address information of the second client,
Then into the whole network, other service nodes initiate flooding addressing, and into the whole network, each other service node send flooding
Solicited message；Wherein, flooding solicited message is call request signaling；
The second service node receives the flooding solicited message sent by the first service node, and lookup is locally registered
Information finds the registration information of the second client, carries out the conversation switching processing of call request signaling；
First client is successfully established session with the second client and is gone forward side by side industry by first service node and second service node
Business data communication；
First client accesses first service node, obtains the address and first service address of node of the first client,
After the address information for registering the first client at the first service node further include:
Establish the mapping relations between first service address of node and the address of the first client；
Mapping relations between the first service address of node and the address of the first client are as follows: the application of the first client
Layer identification<->the first client Network Layer identities；
Second client accesses second service node, obtains the address and second service address of node of the second client,
After the address information for registering the second client at the second service node, further includes:
Establish the mapping relations between second service address of node and the address of the second client；
Mapping relations between the second service address of node and the address of the second client are as follows: the application of the second client
Layer identification<->the second client Network Layer identities；
The application layer mark are as follows: the address of telephone number service node, the Network Layer identities are signaling IP address and signaling
Port numbers.
2. the method as described in claim 1, which is characterized in that first client is initiated to call to second client
Dial request, comprising:
First client dials the telephone number of second client, initiates calling dial request.
3. the method as described in claim 1, which is characterized in that the application layer identification SIP URI of the calling dial request are as follows:
The telephone number@first service address of node of second client；The flooding solicited message is and flooding next-hop
The address of service node is corresponding, the flooding solicited message sent by first service node are as follows: the phone of the second client
The address of the service node of number@flooding next-hop.
4. the method as described in any one of claims 1 to 3, which is characterized in that described each clothes other into the whole network
Business node is sent after flooding solicited message, further includes:
The service node for searching the registration information less than the second client is returned according to standard protocol specification to first service node
Respond 4XX, 5XX or 6XX.
5. the method as described in any one of claims 1 to 3, which is characterized in that the second service node receive by
The flooding information that first service node is sent, lookup are locally registered information, find the registration information of the second client, carry out
After the conversation switching processing of call request signaling, further includes:
Second client ring finds the first client using direct addressing method, establishes and communicates to connect with the first client.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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