CN110312241B - International gateway server, block chain network system and communication method thereof - Google Patents
International gateway server, block chain network system and communication method thereof Download PDFInfo
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- CN110312241B CN110312241B CN201910590051.7A CN201910590051A CN110312241B CN 110312241 B CN110312241 B CN 110312241B CN 201910590051 A CN201910590051 A CN 201910590051A CN 110312241 B CN110312241 B CN 110312241B
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- 238000000034 method Methods 0.000 title claims abstract description 42
- 230000006854 communication Effects 0.000 title claims abstract description 37
- 238000004891 communication Methods 0.000 title claims abstract description 36
- 238000013507 mapping Methods 0.000 claims abstract description 19
- 230000011664 signaling Effects 0.000 claims description 11
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000012795 verification Methods 0.000 description 3
- 238000012550 audit Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/26—Network addressing or numbering for mobility support
- H04W8/28—Number portability ; Network address portability
Abstract
The invention provides a communication method based on a block chain network system, wherein the block chain network system comprises an industry and credit server node and international gateway office server nodes of a plurality of operators, and the communication method comprises the following steps: after receiving a calling request sent from a foreign operator network, judging whether a mobile phone number sending the calling request carries a number and is transferred out; when the mobile phone number which sends the calling request is judged to be carried out, inquiring an international gateway of an operator to which the mobile phone number which sends the calling request is transferred in the block chain network system; and after determining the operator to which the mobile phone number sending the calling request is transferred, establishing and storing a mapping relation between the mobile phone number sending the calling request and the operator to which the mobile phone number is transferred. The invention also provides an international gateway server and a block chain network system, and overseas roaming communication of the number portability user can be realized by utilizing the communication method.
Description
Technical Field
The invention relates to the field of communication, in particular to a communication method based on a block chain network system, an international gateway office server and the block chain network system.
Background
With the increase of mobile phone users, in order to improve user experience, a number portability service has appeared. That is, a cell phone user may transfer an account from one operator to another operator while keeping the cell phone number unchanged.
The number portability is beneficial to consumers, the market structure is also optimized, and the network portability cost of users can be reduced. However, in the current number portability service, the international roaming condition of the user is not considered, and once the number portability user is in the international roaming state, a fault is easy to occur when the user makes a call.
Therefore, how to implement the international roaming call of the portable network user becomes a technical problem to be solved in the field.
Disclosure of Invention
The invention aims to provide a communication method based on a block chain network system, an international gateway server and the block chain network system. The communication method can realize the international roaming conversation of the number portability user.
In order to achieve the above object, as an aspect of the present invention, there is provided a communication method based on a blockchain network system including an industry department of telecommunication server node and international gateway office server nodes of a plurality of operators, wherein the communication method includes:
after receiving a calling request sent from a foreign operator network, judging whether a mobile phone number sending the calling request carries a number and is transferred out;
when the mobile phone number which sends the calling request is judged to be carried out, inquiring an international gateway of an operator to which the mobile phone number which sends the calling request is transferred in the block chain network system;
and after determining the operator to which the mobile phone number sending the calling request is transferred, establishing and storing a mapping relation between the mobile phone number sending the calling request and the operator to which the mobile phone number is transferred.
Preferably, the communication method further includes, after the step of establishing a mapping relationship between the mobile phone number from which the calling request is sent and the operator to which the mobile phone number is forwarded:
and when receiving an instruction related to the mobile phone number which sends the calling request, forwarding the instruction to an international gateway of an operator related to the mobile phone number which sends the calling request.
Preferably, the instruction related to the mobile phone number which issues the calling request includes signaling about the mobile phone number which issues the calling request or an incoming call of the mobile phone number which issues the calling request.
Preferably, the communication method further includes:
after receiving an inquiry request of an international gateway of an operator to which the inquiry mobile phone number is transferred, locally inquiring the mobile phone number associated with the received inquiry request;
and broadcasting the query result to the blockchain network system.
As a second aspect of the present invention, there is provided an international gateway server for a block chain network system including a title server node and international gateway server nodes of a plurality of operators, the international gateway server serving as an international gateway server node of the block chain network system, wherein the international gateway server includes:
the local query module is used for locally querying the mobile phone number sending the calling request after receiving the calling request sent by a foreign operator network, and judging whether the mobile phone number sending the calling request carries out number portability or not;
the broadcasting module is used for broadcasting, inquiring and sending an inquiry request of an international gateway of an operator to which the mobile phone number of the calling request is transferred to the block chain network system when the local inquiry module judges that the mobile phone number of the calling request is carried and transferred out;
and the mapping relation storage module is used for establishing and storing the mapping relation between the mobile phone number sending the calling request and the operator to which the mobile phone number is transferred after determining the operator to which the mobile phone number sending the calling request is transferred.
Preferably, the international gateway server further includes a forwarding module, and the forwarding module is configured to forward, when receiving information related to the mobile phone number that sent the calling request, the information to an international gateway of an operator that is associated with the mobile phone number that sent the calling request.
Preferably, the instruction related to the mobile phone number which issues the calling request includes signaling about the mobile phone number which issues the calling request or an incoming call of the mobile phone number which issues the calling request.
Preferably, the local query module is further configured to query the mobile phone number locally and broadcast the query result to the blockchain network system after receiving a query request for querying an international gateway of an operator to which the mobile phone number that sent the calling request is forwarded.
As a third aspect of the present invention, a blockchain network system is provided, where the blockchain network system includes a business segment server node and a plurality of operator international gateway server nodes, where an international gateway server of the international gateway server node is the international gateway server provided in the present invention, and a business segment server of the business segment server node stores information of the international gateway server nodes of all operators in the blockchain network system.
Preferably, the industry and trust department server of the industry and trust department server node is configured to publish the created blocks of the block chain network system, and the industry and trust department server is configured to examine and approve an international gateway office server node of an operator who applies for joining the block chain network system, and the industry and trust department server of the industry and trust department server node is further configured to update information of the international gateway office server node stored in the industry and trust department server node after the international gateway office server node of the operator is approved to join the block chain network system.
When a mobile phone user sends a calling request abroad, the foreign operator network can preliminarily judge the operator to which the mobile phone number belongs according to the mobile phone number sending the calling request, and forward the calling request to the preliminarily judged international gateway of the operator. For example, when the foreign operator network determines the calling mobile phone number as the mobile phone number according to the number segment, the calling request is forwarded to the mobile international gateway server. By the operation, the faults that the number portability user cannot make a call when roaming overseas can be avoided.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a block diagram of a blockchain-based network system according to the present invention;
FIG. 2 is a flow chart of a communication method provided by the present invention;
fig. 3 is a schematic block diagram of an international gateway server provided in the present invention.
Description of the reference numerals
100: the work and trust department server node 200: international gateway server node
210: the local query module 220: broadcast module 220
230: the mapping relationship storage module 240: forwarding module
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
As an aspect of the present invention, there is provided a communication method based on a blockchain network system, as shown in fig. 1, the blockchain network system including an office server node and international gateway server nodes of a plurality of operators, wherein, as shown in fig. 2, the communication method includes:
in step S110, after receiving a calling request sent from a foreign operator network, it is determined whether a mobile phone number that sent the calling request has been ported;
when the mobile phone number which sends the calling request is judged to be number portability, in step S120, an international gateway of an operator to which the mobile phone number which sends the calling request is ported is queried in the block chain network system;
in step S130, a mapping relationship between the mobile phone number that issued the calling request and the operator to which the mobile phone number is transferred is established and stored.
The above "international gateway server nodes of multiple operators" means that multiple operators are included in the block chain network system, and each operator corresponds to at least one international gateway server node.
It is noted that the communication method is performed by an international gateway server. When a mobile phone user sends a calling request abroad, the foreign operator network can preliminarily judge the operator to which the mobile phone number belongs according to the mobile phone number sending the calling request, and forward the calling request to the preliminarily judged international gateway of the operator. For example, when the foreign operator network determines the calling mobile phone number as the mobile phone number according to the number segment, the calling request is forwarded to the mobile international gateway server. By the operation, the faults that the number portability user cannot make a call when roaming overseas can be avoided.
After receiving a calling request from abroad, firstly, judging whether a user sending the calling request carries a number to switch to the network or not, rather than directly processing the calling request. When the international gateway which receives the calling request determines the operator to which the mobile phone number which sends the calling request belongs at present, the mapping relation between the mobile phone number and the operator is established and stored. When a calling request is received, the updating of the mapping relation between the mobile phone number and the operator is completed once, so that the timely synchronization of the number portability information of different operators can be realized, a database does not need to be specially maintained, and the maintenance cost is reduced. In addition, the communication method provided by the invention is also beneficial to realizing the supervision of the number portability information, thereby facilitating the work of charging, number inquiry and the like, and improving the user experience.
In the invention, the operator to which the mobile phone number sending the calling request belongs currently can be inquired in a mode of broadcasting the inquiry request to the blockchain network. Specifically, the broadcast message including the query request may have the following format: the method comprises the steps of block chain identification of a current international gateway office server, a block chain public key, a mobile phone number to be inquired and an inquiry instruction. And after encrypting the broadcast message by using a block chain private key of the current international gateway office server, broadcasting the broadcast message to a block chain network.
After a mapping relationship between the mobile phone number and an operator to which the mobile phone number currently belongs (i.e., the operator to which the mobile phone number is transferred) is established and stored, the calling request is processed. Accordingly, the communication method further comprises, after step S130:
in step S140, when receiving an instruction related to the mobile phone number that issued the calling request, the instruction is forwarded to an international gateway of an operator that is associated with the mobile phone number that issued the calling request, where the instruction includes signaling or incoming call information.
As described above, when a caller request is received, the current international gateway server queries the blockchain network system for the cell phone number from which the caller request originated. When the current international gateway server receives a query request sent by an international gateway server of another operator, the current international gateway server should also be able to respond accordingly. Specifically, the communication method may further include:
in step S150, after receiving an inquiry request of the international gateway of the operator to which the inquiry mobile phone number is forwarded, locally inquiring the mobile phone number associated with the received inquiry request;
in step S160, the query result is broadcasted to the blockchain network system.
In the present invention, the specific form of the query request is not particularly limited, and as a specific and implementation manner, the query request may be a broadcast message having the following form: and sending the block chain identification of the international gateway office server of the query request, the block chain public key, the mobile phone number to be queried and a query instruction. It is noted that the broadcast message is encrypted by the private key of the international gateway office server that sent the query request.
As a second aspect of the present invention, there is provided an international gateway server for a block chain network system, the block chain network system including a trust office server node and international gateway server nodes of a plurality of operators, the international gateway server serving as an international gateway server node of the block chain network system, wherein the international gateway server includes a local query module 210, a broadcast module 220, and a mapping relation storage module 230, as shown in fig. 3. The international gateway server provided by the invention can execute the communication method provided by the invention.
The local query module 210 is configured to perform step S110, that is, the local query module 210 is configured to perform local query on the mobile phone number that sends the calling request after receiving the calling request sent from the foreign operator network, and determine whether the mobile phone number that sends the calling request has been ported.
The broadcasting module 220 is configured to perform step S120, that is, when the local query module determines that the mobile phone number that sent the calling request is ported, the broadcasting module 220 is configured to broadcast, query, and send a query request of an international gateway of an operator to which the mobile phone number that sent the calling request is ported to in the block chain network system.
The mapping relation storage module 230 is configured to execute step S130, that is, the mapping relation storage module 230 is configured to establish and store a mapping relation between the mobile phone number that sends the calling request and the operator to which the mobile phone number is transferred, after determining the operator to which the mobile phone number that sends the calling request is transferred.
The working principle and the beneficial effects of the communication method have been described in detail above, and are not described in detail herein.
As described above, the broadcast message including the query request may have the following format: the method comprises the steps of block chain identification of a current international gateway office server, a block chain public key, a mobile phone number to be inquired and an inquiry instruction.
After a mapping relationship between the mobile phone number and an operator to which the mobile phone number currently belongs (i.e., the operator to which the mobile phone number is transferred) is established and stored, the calling request is processed. Correspondingly, the international gateway server further includes a forwarding module 240, where the forwarding module 240 is configured to perform step S140, that is, when a signaling or an incoming call related to the mobile phone number that issued the calling request is received, the forwarding module 240 is configured to forward the signaling or the incoming call to the international gateway of the operator that is associated with the mobile phone number that issued the calling request.
As described above, when a caller request is received, the current international gateway server queries the blockchain network system for the cell phone number from which the caller request originated. When the current international gateway server receives a query request sent by an international gateway server of another operator, the current international gateway server should also be able to respond accordingly. Preferably, the local query module 210 is further configured to perform step S150 and step S160, that is, after receiving a query request for querying an international gateway of an operator to which a mobile phone number that sent the calling request is forwarded, the local query module 210 is further configured to query the mobile phone number locally, and broadcast a query result to the blockchain network system.
As a third aspect of the present invention, there is provided a blockchain network system, as shown in fig. 1, the blockchain network system includes a business trust department server node and a plurality of operator's international gateway office server nodes, wherein an international gateway office server 20 of the international gateway office server nodes is the international gateway office server provided by the present invention. The information of the international gateway server nodes of all operators in the block chain network system is stored in the work and trust department server 100 of the work and trust department server node.
Preferably, the gong-letter server 100 of the gong-letter server node is arranged to distribute the created blocks of the blockchain network system. And the Ministry of industry and communications server is used for approving the International gateway office Server node of the operator who applies for joining the blockchain network system, and the Ministry of industry and communications server of the Ministry of industry and communications server node is also used for updating the information of the International gateway office Server node stored in the Ministry of industry and communications server after the International gateway office Server node of the operator is approved to join the blockchain network system.
And the work and information part server of the work and information part server node is an originator of the block chain network system. The following briefly describes how the industry and credit department server creates a block chain network system:
the business department server of the business department server node is used as an originator of the local block chain, and distributes an established block of the local block chain in the block chain network in a mode of sending broadcast messages, wherein the established block comprises the following contents: the broadcast message is signed by using a private key of the server node of the work and trust department and then is broadcast to a block chain network, and the created block is used as a first block of the block chain;
the business-to-trust server locally stores list information of the operator international gateway server node of the local block chain, and updates the list information of the operator international gateway server node in real time, where the list includes information such as block chain identifiers and public keys of all the operator international gateway server nodes of the local block chain network, and for example, the list of the operator includes the following information: the method comprises the steps that a block chain identifier and a public key of an international gateway office node are communicated, a block chain identifier and a public key of a telecommunication international gateway office node are communicated, and a block chain identifier and a public key of a mobile international gateway office node are communicated;
when an international gateway server node of an operator wants to apply for becoming an international gateway node of the operator of the block chain, the international gateway server node of the operator firstly broadcasts identity information to the block chain when the international gateway server node of the operator is accessed into the block chain for the first time, the broadcast information comprises the identity information, identification, public key and other information of the international gateway node of the operator, which belongs to the international gateway server node of the operator, and the broadcast information is broadcasted to a block chain network after being signed by using a private key of the node;
then the international gateway server node of the operator inquires the created block of the block chain from the adjacent node of the operator, and the inquiry request is signed by using the private key of the node and then is sent to each adjacent node. (the international gateway server node of the operator who has joined the above application may query its own multiple neighboring nodes for created blocks, and then compare the received created blocks for consistency, and if they are consistent, the created blocks are deemed to be real created blocks, and if they are not consistent, the created blocks that exceed a certain number percentage threshold are defined to be real, because the existence of any block chain assumes that most of the block chains are good);
the international gateway server node of the operator applying for joining receives the created block which is returned from the adjacent node and is subjected to correctness verification, the created block is stored in the local of the international gateway server node, the address of an originator node of the block chain, namely a business department node, is taken out from the created block, and an application request of the international gateway server node applying for becoming the block chain is sent to the business department node, wherein the request comprises the block chain identification and the public key of the international gateway server node of the operator applying for joining, and the information of the company name, the representative (name and identity number), the registered capital, the registered address, the enterprise registered number (the registered number is 569876654324567 for example), the establishing time and the like of the international gateway server node of the operator is sent;
the business trust server node receives the application request of the operator which applies for becoming the block chain from the international gateway server node of the operator, audits the operator qualification of the international gateway server node of the operator, if the audit is passed, the business trust server node sends broadcast information to the block chain network, declares the international gateway server node of the operator to become the international gateway server node of a certain operator of the block chain, and broadcasts the broadcast information after using the private key signature of the business trust node. The business trust server node adds the relative information of the node into the list information of the operator international gateway server stored in the business trust server node.
The following will briefly describe how the blockchain network system provided by the present invention performs the communication method provided by the present invention, taking the mobile phone number 138111222 as an example to carry out number portability to connected:
when a mobile user carries out number portability to a connected state, the number portability user roams abroad and the user initiates a call abroad, a foreign operator network identifies the number section of the mobile phone number of the user and sends the information of the user to a mobile international gateway, and when the mobile international gateway finds that the user carries out number portability when the user is attached, a mobile gateway node sends a broadcast message to a block chain network, wherein the content of the broadcast message is as follows: the mobile international gateway identity + the blockchain public key + the query request of the operator to which the mobile phone number 13811112222 of the user belongs, and the broadcast message is signed by using a private key of the mobile international gateway and then is broadcast to the blockchain network;
after receiving the broadcast message, the international gateway nodes of other operators in the blockchain network verify the private key signature of the mobile international gateway, if the verification is passed, inquire the mobile phone number 13811112222 in the international gateway, if the international gateway is inquired, and if the connected international gateway finds that the number belongs to a mobile phone user who is carried into the connected international gateway, send the broadcast message to the blockchain network, wherein the content of the broadcast message is as follows: the operator to which the communicated international gateway block chain identifier + block chain public key + user's mobile phone number 13811112222 belongs is a communication, and the broadcast message is signed by using the private key of the communicated international gateway and then broadcast to the block chain network;
after receiving the broadcast message of the connected international gateway node, the mobile international gateway node verifies the private key signature of the connected international gateway, if the verification is passed, the mobile international gateway marks the mobile phone number as a connected user in the mobile international gateway, and subsequently, if the mobile international gateway continues to receive the signaling or incoming call of the mobile phone number 1381111222 from other foreign operators, the mobile international gateway switches the signaling or incoming call to the connected international gateway, and completes the subsequent call establishment and communication process;
a Long Term Evolution Voice over lte (VoLTE) user needs to complete an attachment process before starting up in a foreign country, then registers in an IP Multimedia Subsystem (IMS) network, and subsequently completes the processes of call signaling establishment, call connection, and the like;
a VoLTE calling user needs to complete a corresponding basic calling process before talking with a called party, and the SIP related signaling flow in the VoLTE calling establishment is the same as the flow of a normal IMS calling;
the voice bearer needs to be established in the calling process, after the bearer is established, an Update message needs to be sent to a called side, an oLTE user carrying the number and switching the network serves as a calling party, and the calling process of the called VoLTE user is as follows: the number portability user is started abroad and attached to the IMS network, and the process is the same as the LTE data international roaming attachment process;
a Public Data Gateway (PGW) with functions of providing session management and bearer control, Data forwarding, IP address allocation and the like of a user sends a message to a Policy and Charging Rules Function (PCRF), when the message is sent to a Home Subscriber Server (HSS), the Home Subscriber Server replies the message to the PGW, finds that the user is not in the Home Subscriber Server and carries the number and forwards the message, and then the PGW sends the message to a telecommunication and Unicom PGW to inquire whether the number is carried and networked to the telecommunication or Unicom;
the method comprises the steps that a telecom and connected PGW sends a query message to a self attribution subscriber server, if a user carries out number portability to a connected state, the connected PGW replies a message to a mobile PGW, the message carries a number portability mark of the user, messages are sent among PGWs, and the PGWs of different operators cannot send messages to each other at present;
the foreign operator network establishes the call by querying the international gateway corresponding to the subscriber. A terminal initiates a call, and firstly, the terminal establishes a channel through a base station and a service gateway;
the service gateway sends the related information to the international gateway of the foreign operator, and then the international gateway of the foreign operator establishes connection with the mobile international gateway to request for call establishment;
the mobile international gateway routes the message to the connected international gateway;
the mobile international gateway transfers the subsequent information to the communicated international gateway; foreign operator IMS network element establishes connection with mobile international gateway, mobile international gateway to connection gateway, completes call connection process;
and finally, finishing the processes of call ending and hanging up.
It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.
Claims (10)
1. A communication method based on a blockchain network system, the blockchain network system including an office server node and international gateway server nodes of a plurality of operators, the communication method being applied to the international gateway server nodes, the communication method comprising:
after receiving a calling request sent from a foreign operator network, judging whether a mobile phone number sending the calling request carries a number and is transferred out;
when the mobile phone number which sends the calling request is judged to be carried out, inquiring an international gateway of an operator to which the mobile phone number which sends the calling request is transferred in the block chain network system;
and after determining the operator to which the mobile phone number sending the calling request is transferred, establishing and storing a mapping relation between the mobile phone number sending the calling request and the operator to which the mobile phone number is transferred.
2. The communication method according to claim 1, further comprising, after the step of establishing a mapping relationship between the mobile phone number from which the calling request is issued and the operator to which the mobile phone number is forwarded:
and when receiving an instruction related to the mobile phone number which sends the calling request, forwarding the instruction to an international gateway of an operator related to the mobile phone number which sends the calling request.
3. The communication method according to claim 2, wherein the instruction related to the mobile phone number from which the calling request is issued includes signaling about the mobile phone number from which the calling request is issued or an incoming call of the mobile phone number from which the calling request is issued.
4. The communication method according to any one of claims 1 to 3, characterized in that the communication method further comprises:
after receiving an inquiry request of an international gateway of an operator to which the inquiry mobile phone number is transferred, locally inquiring the mobile phone number associated with the received inquiry request;
and broadcasting the query result to the blockchain network system.
5. An international gateway server for a blockchain network system including a trust office server node and international gateway server nodes of a plurality of operators, the international gateway server serving as an international gateway server node of a blockchain network system, the international gateway server comprising:
the local query module is used for locally querying the mobile phone number sending the calling request after receiving the calling request sent by a foreign operator network, and judging whether the mobile phone number sending the calling request carries out number portability or not;
the broadcasting module is used for broadcasting, inquiring and sending an inquiry request of an international gateway of an operator to which the mobile phone number of the calling request is transferred to the block chain network system when the local inquiry module judges that the mobile phone number of the calling request is carried and transferred out;
and the mapping relation storage module is used for establishing and storing the mapping relation between the mobile phone number sending the calling request and the operator to which the mobile phone number is transferred after determining the operator to which the mobile phone number sending the calling request is transferred.
6. The international gateway server according to claim 5, further comprising a forwarding module, wherein the forwarding module is configured to forward, when receiving the information related to the mobile phone number that issued the calling request, the information to an international gateway of an operator that is associated with the mobile phone number that issued the calling request.
7. The international gateway server according to claim 6, wherein the instruction related to the mobile phone number from which the calling request is issued includes signaling about the mobile phone number from which the calling request is issued or an incoming call to the mobile phone number from which the calling request is issued.
8. The gateway international server according to any one of claims 5 to 7, wherein the local query module is further configured to query the mobile phone number locally and broadcast a query result to the blockchain network system after receiving a query request for querying an international gateway of an operator to which the mobile phone number that sent the calling request is forwarded.
9. A blockchain network system comprising a gateway server node and a plurality of operator's international gateway server nodes, wherein the international gateway server of the international gateway server node is the international gateway server of any one of claims 4 to 6, and the gateway server of the gateway server node stores information of the international gateway server nodes of all operators in the blockchain network system.
10. The blockchain network system of claim 9, wherein the industry department server of the industry department server node is configured to publish a created block of the blockchain network system, and the industry department server is configured to approve an international gateway office server node of an operator applying to join the blockchain network system, and the industry department server of the industry department server node is further configured to update information of the international gateway office server node stored in the industry department server after the international gateway office server node of the operator is approved to join the blockchain network system.
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| US6161017A (en) * | 1997-10-07 | 2000-12-12 | Telefonaktiebolaget Lm Ericsson | Method of routing calls to portable numbers in a radio telecommunications network |
| CN1199482C (en) * | 2002-01-06 | 2005-04-27 | 华为技术有限公司 | Method for realizing carryover of mobile number |
| KR100525344B1 (en) * | 2003-07-28 | 2005-11-01 | 주식회사 케이티프리텔 | Method and system for providing number integrated service to commercial terminal |
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