CN113055874B - Method, platform, system and medium for realizing multi-number business of cross-network operator - Google Patents

Method, platform, system and medium for realizing multi-number business of cross-network operator Download PDF

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Publication number
CN113055874B
CN113055874B CN201911362128.1A CN201911362128A CN113055874B CN 113055874 B CN113055874 B CN 113055874B CN 201911362128 A CN201911362128 A CN 201911362128A CN 113055874 B CN113055874 B CN 113055874B
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cscf
calling
called
network
control module
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CN113055874A (en
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袁晓志
吕振华
张琳峰
尹珂
杨维忠
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China Telecom Corp Ltd
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China Telecom Corp Ltd
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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
    • H04W8/08—Mobility data transfer
    • H04W8/10—Mobility data transfer between location register and external networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/11—Allocation or use of connection identifiers
    • 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
    • H04W8/04—Registration at HLR or HSS [Home Subscriber Server]
    • 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
    • H04W8/06—Registration at serving network Location Register, VLR or user mobility server

Abstract

The invention discloses a method, a platform, a system and a medium for realizing multi-number business of a cross-network operator. The method comprises the following steps: the call initiated by the user reaches an S-CSCF in the home operator network, and the S-CSCF triggers a calling function control module in the multi-number service platform according to the iFC; the calling function control module changes the number according to the called number and routes the call back to the S-CSCF, wherein if the called number is a network number of a visiting operator, the calling number is modified into a secondary number, otherwise, the calling number is modified into a primary number; S-CSCF makes ENUM/DNS inquiry to the called number; and the S-CSCF performs route analysis according to the query result and routes the call to the MGCF or the I-CSCF in the visiting operator network.

Description

Method, platform, system and medium for realizing multi-number business of cross-network operator
Technical Field
The present invention relates to the field of mobile communications, and in particular, to a method, platform, system, and medium for implementing international multi-number service across network operators.
Background
The one-card two-number service refers to an international multi-number service in which a user has two mobile user numbers by using one mobile phone card and can communicate based on the two mobile user numbers. One of the mobile subscriber numbers is called a master number (MDNa), provided by the home operator; the other is called a secondary number (MDNb), provided by the visited operator. When the user dials or sends a short message to the visiting place number as a calling party, the called party displays a secondary number (MDNb) and displays a primary number (MDNa) in other scenes.
The existing multi-number service has the problems that user data cannot be synchronized, and main and auxiliary number voice and short messages cannot be normally transferred under the condition of crossing network operators.
Therefore, there is a need for a method that can implement functions of number binding, caller number change, called call forwarding, etc. across operator networks.
Disclosure of Invention
In view of the above technical problems, the present invention provides a multi-number service platform, and a method, a platform, a system and a medium for implementing functions of number binding, calling number changing, called call forwarding, etc. between inter-operator networks through the multi-number service platform.
According to a first aspect of the present invention, there is provided a method for implementing a multi-number service across network operators when a user initiates a voice call as a calling end. The method comprises the following steps: the call initiated by the user reaches an S-CSCF in the home operator network, and the S-CSCF triggers a calling function control module in the multi-number service platform according to the iFC; the calling function control module changes the number according to the called number and routes the call back to the S-CSCF, wherein if the called number is a network number of a visiting operator, the calling number is modified into a secondary number, otherwise, the calling number is modified into a primary number; S-CSCF makes ENUM/DNS inquiry to the called number; and the S-CSCF performs route analysis according to the query result and routes the call to the MGCF or the I-CSCF in the visiting operator network.
According to one example, the S-CSCF performing routing analysis and routing the call to the MGCF or I-CSCF in the visited carrier network based on the query result includes: when the called party is anchored in the IMS domain, the S-CSCF routes the call to an I-CSCF in an IMS network where the called party number is located; when the called party is anchored in the CS domain, the S-CSCF routes the call to the MGCF, and the MGCF performs subsequent routing according to the called number.
According to one example, the method further comprises the MGCF or the I-CSCF in the visited operator network returning 183 a message to the user via the S-CSCF.
According to a second aspect of the present invention, there is provided a method for implementing multiple number services across network operators when a user initiates a short message transmission as a calling end. The method comprises the following steps: the short message carrying the calling number sent by the user reaches an S-CSCF in the home operator network through a P-CSCF, and the S-CSCF forwards the short message to the SMSC according to the iFC trigger rule; the SMSC sends the short message carrying the calling number to a calling function control module in the multi-number service platform; the calling function control module changes the number according to the called number, wherein if the called number is a network number of a visiting operator, the calling number is modified into a secondary number, otherwise, the calling number is modified into a primary number; the calling function control module sends the short message containing the changed calling number back to the SMSC; and the SMSC sends the short message according to the called route.
According to one example, the method further comprises the SMSC returning 202 a message to the user via the S-CSCF and the P-CSCF.
According to a third aspect of the present invention, there is provided a method for implementing multiple number services across network operators when a user receives a voice call as a called party. The method comprises the following steps: an IAM request carrying CD = secondary number arrives at the GMSC in the visited operator network; the GMSC sends a location request message LOCRQ carrying MDN=auxiliary number to the HLR to which the auxiliary number belongs; HLR sends route request message ROUTREQ to called function control module in multi-number service platform to request TLDN; the called function control module modifies the auxiliary number into a main number and returns a routing request message response routreq carrying TLDN=main number to the HLR; the HLR returns a location request message response locreq carrying TLDN=master number to the GMSC; the GMSC sends an IAM request carrying the cd=primary number to the ISC; and the ISC sends an IAM request carrying the CD=main number to the MGCF of the home operator of the main number, and the MGCF calls the main number continuously according to the route.
According to a fourth aspect of the present invention, there is provided a method for implementing multiple number service across network operators when a user receives a short message as a called party. The method comprises the following steps: the SMSC of the operator to which the auxiliary number belongs receives a short message service request SMSREQ carrying MDN=auxiliary number; the SMSC sends SMSREQ carrying mdn=secondary number to HLR to which the secondary number belongs; the HLR returns the global address GT of the called function control module in the multi-number service platform to the SMSC through a short message service request response smsreq; the SMSC sends the SMDPP to the called function control module in a point-to-point mode, wherein the SMDPP carries the called number = auxiliary number; the called function control module modifies the called number into a main number and routes the short message point-to-point delivery SMPP_delivery carrying the called number=the main number to the SMSC of the home operator; and the SMSC of the home operator sends the short message to the main number.
According to one example, the method further comprises the called function control module returning a SMDPP message to the SMSC, wherein the SMDPP message is a response message to the SMDPP message.
According to one example, the method further comprises the SMSC of the home operator responding to the called function control module with a short message point-to-point delivery response smpp_delivery_resp.
According to a fifth aspect of the present invention, a multi-number service platform is provided for implementing a cross-network operator. The platform comprises: the calling function control module comprises a calling number changing module which is configured to change the number of a calling number initiating voice and short messages according to the called number; and the called function control module comprises a called number changing module which is configured to change the number of the auxiliary number for receiving the voice and the short message so as to transfer the auxiliary number to the main number before the incoming call and the short message are received.
According to the embodiment of the invention, the calling function control module and the called function control module can be combined or separated for deployment according to service requirements, and can also be virtualized for deployment.
According to one example, the calling number change module is further configured to change the calling number to a secondary number if the called number is a visited operator network number, and to change the calling number to a primary number otherwise.
According to one example, after opening the multi-number service, the multi-number service platform can register as an MSC/VLR on the HLR to which the secondary number belongs.
According to a sixth aspect of the present invention, there is provided a system for implementing a multi-number service across network operators. The system comprises: a memory having stored thereon computer executable instructions; and a processor coupled to the memory and executing the computer-executable instructions to perform a method of implementing a multi-number service across a network operator as previously described.
According to a seventh aspect of the present invention there is provided a non-transitory computer-readable storage medium having stored thereon computer-executable instructions which, when executed by one or more processors, cause the one or more processors to perform a method of implementing a multi-number service across network operators as previously described.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
Fig. 1 shows a schematic diagram of a multi-number service platform 100 in which a caller function control module 110 and a callee function control module 120 are integrated together according to an embodiment of the present invention.
Fig. 2 illustrates a grid pattern 200 in accordance with an embodiment of the present invention.
Fig. 3 shows a flow chart of a method 300 of implementing international multi-number services across network operators according to a first embodiment of the invention.
Fig. 4 shows a flow chart of a method 400 of implementing international multi-number services across network operators according to a second embodiment of the invention.
Fig. 5 shows a flow chart of a method 500 of implementing international multi-number services across network operators according to a third embodiment of the invention.
Fig. 6 shows a flow chart of a method 600 of implementing international multi-number services across network operators according to a fourth embodiment of the invention.
Detailed Description
Representative applications of the apparatus and methods according to embodiments described herein are provided in this section. These examples are provided solely to add context and aid in the understanding of the embodiments. It will thus be apparent to one skilled in the art that embodiments of the invention described herein may be practiced without some or all of these specific details. In other instances, well known process steps have not been described in detail in order to not unnecessarily obscure the embodiments of the present invention. Other applications are possible as well, so that the following examples should not be considered limiting.
Before describing the embodiments of the present application, some abbreviations that may be mentioned in the present application are described as follows:
P-CSCF: proxy Call Session Control Function, proxy call session control function;
I-CSCF: interrogation Call Session Control Function, inquiring about call session control functions;
S-CSCF: serving Call Session Control Function, serving call session control function;
ENUM: e164 Number, e.164 Number;
DNS: domain Name System, domain name system;
HLR: home Location Register, home location register;
HSS: home Subscriber Server, home subscriber server;
MSC: mobile Switching Center, mobile switching center;
VLR: visitor Location Register, visitor location register;
VoLTE AS: voice over Long-Term Evolution Application Server, voice service application server based on LTE;
SMSC (short message service center): short Message Service Center, short message service center;
MGCF: media Gateway Control Function, media gateway control function;
GMSC: gateway Mobile Switching Center, gateway mobile switching center;
STP: signaling Transfer Point, signaling transfer points;
ISC: international Switching Center, international switching center;
TLDN: temporary Local Directory Number temporary local subscriber number;
IMS: IP Multimedia Subsystem, IP multimedia subsystem;
SBC: session Border Controller, boundary session controller;
iFC: initial Filter Criteria, initial filter criteria;
GT: global Table, global address;
MDN: mobile Directory Number, mobile subscriber number;
IAM: initial Address Message, initial address message;
SMDPP: short Message Delivery Point-to-Point, short message Point-to-Point delivery; and
CD: called, called number.
The invention provides a multi-number service platform, which consists of a calling function control module and a called function control module. The calling function control module and the called function control module can be combined or separated for deployment according to service requirements, and can also be virtualized for deployment.
Fig. 1 shows a schematic diagram of a multi-number service platform 100 in which a caller function control module 110 and a callee function control module 120 are integrated together according to an embodiment of the present invention.
According to an embodiment of the present invention, the calling function control module 110 includes a calling number changing module 130, where the calling number changing module 130 may be configured to change the calling number initiating the voice and the short message according to the called number, if the called number is a visited carrier network number, the calling number is changed to a secondary number, otherwise, the calling number is changed to a primary number.
According to an embodiment of the present invention, the called function control module 120 includes a called number changing module 140, where the called number changing module 140 may be configured to change the number of the secondary number that receives the voice and the short message, and forward the secondary number to the primary number before the incoming call and the short message are received.
According to the embodiment of the invention, after the multi-number service is opened, the multi-number service platform can be used as an MSC/VLR to register on an HLR to which the auxiliary number belongs.
In accordance with an embodiment of the present invention, the association between the primary number and the secondary number is bound by the HLR/HSS and the multi-number service platform, the binding details being described below with reference to fig. 2-6. The primary number can bind a plurality of secondary numbers, namely the home operator network can bridge a plurality of visiting operator networks through the multi-number service platform of the invention. The main number VoLTE user triggers the multi-number service through the iFC subscription information.
A method for implementing international multi-number service across network operators through the multi-number service platform is described in detail below with reference to fig. 2-6.
Fig. 2 illustrates a grid pattern 200 in accordance with an embodiment of the present invention. The IMS architecture in the home operator network, the multi-number service platform, and the system architecture in the visited operator network, and the associations between the three are shown in fig. 2.
Fig. 3 shows a flow chart of a method 300 of implementing international multi-number services across network operators according to a first embodiment of the invention. The method 300 is a flow chart when a user initiates a voice call as a calling end.
At step 310, the user sends an INVITE request to the P-CSCF/SBC in the home operator network to which the primary number belongs.
At step 320, the P-CSCF/SBC sends an INVITE request to the S-CSCF.
At step 330, the S-CSCF triggers a calling function control module in the multi-number service platform according to the iFC.
Since the VoLTE AS stores all the service types of the subscription of the user, according to an alternative embodiment, the S-CSCF needs to go to the VoLTE AS to take the service of the subscription of the user, and the AS needs to return the corresponding service subscription to the S-CSCF.
At step 340, the calling function control module changes numbers according to the called number and routes the INVITE request back to the S-CSCF.
According to the number changing logic of the embodiment of the invention, if the called number is the network number of the visiting operator, the calling number is changed into the auxiliary number, otherwise, the calling number is changed into the main number.
According to an example embodiment, the calling function control module modifies the calling number MDN in the header field P-Asserted-Identity: < sip: + MDN@ims.mnc0XX.mcc515.3gppnetwork.org > of the INVITE message to be the primary number MDNa or the secondary number MDNb, depending on the called number.
At step 350, the S-CSCF makes an ENUM/DNS query for the called number.
The S-CSCF performs a routing analysis based on the query result and routes the INVITE request to the MGCF or the I-CSCF in the visited operator network at step 360.
According to one embodiment, when the called party is anchored in the IMS domain, the S-CSCF routes the call to the I-CSCF in the IMS network where the called number is located; when the called party is anchored in the CS domain, the S-CSCF routes the call to the MGCF, and the MGCF performs subsequent routing according to the called number.
At step 370 the MGCF or I-CSCF in the visited operator network returns 183 a message (session in progress) to the user via the S-CSCF and the P-CSCF/SBC.
The S-CSCF also sends this 183 message to the calling function control module in the VoLTE AS and multi-number service platform according to an embodiment of the present invention.
Fig. 4 shows a flow chart of a method 400 of implementing international multi-number services across network operators according to a second embodiment of the invention. The method 400 is a flow chart when a user initiates a short message as a calling end.
At step 410, a MESSAGE carrying the calling number arrives at the S-CSCF in the home operator network via the P-CSCF.
At step 420, the S-CSCF forwards the MESSAGE to the SMSC according to the iFC trigger rule.
At step 430, the SMSC returns 202 a message (accept response) to the user via the S-CSCF and the P-CSCF.
At step 440, the SMSC sends a MESSAGE carrying the calling number to the calling function control module in the multi-number service platform via smpp_delivery_sm.
At step 450, the caller function control module changes numbers according to the called number.
According to an embodiment of the invention, the calling number is modified to the secondary number MDNb if the called number is a visited operator network number, otherwise the calling number is modified to the primary number MDNa.
At step 460, the calling function control module sends a MESSAGE containing the modified calling number back to the SMSC via smpp_delivery_sm_resp (short MESSAGE point-to-point delivery MESSAGE response).
At step 470, the SMSC issues a short message according to the called route.
Optionally, the SMSC may select different routes for issuing according to the calling party number, the called party number, the service rule, and the like, which are not described herein.
Fig. 5 shows a flow chart of a method 500 of implementing international multi-number services across network operators according to a third embodiment of the invention. Method 500 is a flow chart when a user receives a voice call as a called party.
At step 510, an IAM request carrying cd=mdnb arrives at the GMSC in the visited operator network. Here MDNb is a secondary number.
At step 520, the GMSC sends a LOCREQ (location request message) carrying mdn=mdnb to the HLR to which the secondary number MDNb belongs.
At step 530, the HLR sends a ROUTREQ (route request message) to the called function control module in the multi-number service platform requesting a TLDN.
At step 540, the called function control module modifies the secondary number MDNb to the primary number MDNa, returning a routreq (routing request message response) carrying tldn=mdna to the HLR.
At step 550, the HLR returns a locreq (location request message response) carrying tldn=mdna to the GMSC.
At step 560, the GMSC sends an IAM request to the ISC carrying cd=mdna.
At step 570, the ISC sends an IAM request carrying cd=mdna to the MGCF of the home operator of the primary number MDNa.
At step 580, the call is routed by the MGCF to the primary number MDNa.
When the IAM request itself carries a cd=main number MDNa, the main number is directly called without changing the number.
Fig. 6 shows a flow chart of a method 600 of implementing international multi-number services across network operators according to a fourth embodiment of the invention. The method 600 is a flow chart when a user receives a short message as a called party.
At step 610, the SMSC of the operator to which the secondary number belongs receives an SMSREQ (short message service request) carrying mdn=mdnb.
At step 620, the SMSC sends SMSREQ carrying mdn=mdnb to the HLR to which the secondary number belongs.
At step 630, the HLR returns the GT of the called function control module in the multi-number service platform to the SMSC through smsreq (short message service request response).
At step 640, the SMSC sends an SMDPP message carrying the called number=mdnb to the called function control module.
At step 650, the called function control module returns a smdpp message to the SMSC. Wherein, the SMDPP message is a response message of the SMDPP message.
At step 660, the called function control module modifies the called number to the primary number MDNa and routes the smpp_delivery message carrying the called number = MDNa to the home operator SMSC.
At step 670, the home operator SMSC responds to the called function control module with a smpp_delivery_resp (short message point-to-point delivery response).
At step 680, the SMSC to which the primary number belongs issues a short message to the primary number MDNa.
AS described above, the multi-number service platform of the present invention has two functional logic body calling function control modules and called function control modules, and has the function of the application server AS, and the deployment mode may be combined, separated deployment or virtualization, so that the multi-number service platform has the capability of registering AS MSC/VLR on the HLR. And the main number and the auxiliary number are bound through the opening association of the service, and the main number can bind a plurality of auxiliary numbers, so that the home operator network can bridge a plurality of visiting operator networks through a multi-number service platform. For VoLTE users, the main number triggers the multi-number service through iFC subscription information. The number changing logic of the calling function control module is used for changing the number of the voice calling and the short message sending according to the called number, if the called number is a visiting place number, the calling number is changed into a secondary number, and otherwise, the calling number is changed into a primary number. The called function control module changes the number logic into forwarding the voice called and short message receiving of the auxiliary number to the main number.
Compared with the traditional multi-number service method, the method can realize the synchronization of user data and the multi-number service functions of voice and short messages under different network operators. By the method provided by the application, the auxiliary numbers of a plurality of visiting operators and the main numbers of the home operators can be bound, and service application scenes such as calling number changing, called call forwarding and the like of the cross-network operators can be realized by the method provided by the application.
Some of the functions described above may be comprised of instructions stored on a storage medium (e.g., a computer readable medium). The instructions may be fetched and executed by a processor. Some examples of storage media are memory devices, tapes, disks, and the like. The instructions, when executed by the processor, are adapted to direct the processor to operate in accordance with the techniques. Those skilled in the art are familiar with instructions, processor(s), and storage media.
Computer program code for carrying out operations corresponding to aspects of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, smalltalk, C ++ or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer (as a stand-alone software package), partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the latter scenario, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through an Internet connection using an Internet service provider).
The corresponding structures, materials, acts, and equivalents of all means or step plus function elements in the claims below are intended to include any structure, material, or act for performing the function in combination with other claimed elements as specifically claimed. The foregoing description of the invention has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the invention. The foregoing exemplary embodiments were chosen and described in order to best explain the principles of the technology of the invention and its practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Aspects of the present invention have been described above with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and/or block diagrams, and combinations of blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions/acts specified in the flowchart and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable medium that can direct a computer, other programmable data processing apparatus, or other devices to function in a particular manner, such that the instructions stored in the computer-readable medium produce an article of manufacture including instructions which implement the function/act specified in the flowchart and/or block diagram block or blocks.
The computer program instructions may also be loaded onto a computer, other programmable data processing apparatus, or other devices to cause a series of operational steps to be performed on the computer, other programmable apparatus or other devices to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide processes for implementing the functions/acts specified in the flowchart and/or block diagram block or blocks.
The flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
While various embodiments have been described above, it should be understood that they have been presented by way of example only, and not limitation. The foregoing description is not intended to limit the scope of the technology to the particular forms set forth herein. Thus, the breadth and scope of a preferred embodiment should not be limited by any of the above-described exemplary embodiments. It is to be understood that the above description is intended to be illustrative, and not restrictive. On the contrary, the description of the invention is intended to cover such alternatives, modifications and equivalents as may be included within the spirit and scope of the technology as defined by the appended claims and otherwise recognized by those skilled in the art. The scope of the technology should, therefore, be determined not with reference to the above description, but instead should be determined with reference to the appended claims along with their full scope of equivalents.

Claims (10)

1. A method for implementing a multi-number service across network operators when a user initiates a voice call as a calling end, comprising:
the call initiated by the user reaches an S-CSCF in the home operator network, and the S-CSCF triggers a calling function control module in the multi-number service platform according to the iFC;
the calling function control module changes the number according to the called number and routes the call after the number change back to the S-CSCF, wherein if the called number is a network number of a visiting operator, the calling number is modified into a secondary number, otherwise, the calling number is modified into a primary number;
S-CSCF makes ENUM/DNS inquiry to the called number; and
the S-CSCF performs route analysis according to the query result and routes the call after the number change to the MGCF or the I-CSCF in the visiting operator network.
2. The method of claim 1 wherein the S-CSCF performing the routing analysis and routing the call to the MGCF or the I-CSCF in the visited operator network based on the query result comprises:
when the called party is anchored in the IMS domain, the S-CSCF routes the call to an I-CSCF in an IMS network where the called party number is located; and
when the called party is anchored in the CS domain, the S-CSCF routes the call to the MGCF, and the MGCF performs subsequent routing according to the called number.
3. The method of claim 1, further comprising the MGCF or the I-CSCF in the visited operator network returning 183 a message to the user via the S-CSCF.
4. A method for realizing multi-number service across network operators when a user initiates a short message transmission as a calling terminal comprises the following steps:
the short message carrying the calling number sent by the user reaches an S-CSCF in the home operator network through a P-CSCF, and the S-CSCF forwards the short message to the SMSC according to the iFC trigger rule;
the SMSC sends the short message carrying the calling number to a calling function control module in the multi-number service platform;
the calling function control module changes the number according to the called number, wherein if the called number is a network number of a visiting operator, the calling number is modified into a secondary number, otherwise, the calling number is modified into a primary number;
the calling function control module sends the short message containing the changed calling number back to the SMSC; and
the SMSC sends out the short message according to the called route.
5. The method of claim 4, further comprising the SMSC returning 202 a message to the user via the S-CSCF and the P-CSCF.
6. A multi-number service platform for implementing a cross-network operator, comprising:
the calling function control module comprises a calling number changing module which is configured to change the number of a calling number initiating a voice call and sending a short message according to the called number;
the calling function control module is configured to respond to the trigger of the S-CSCF according to the iFC, change the number according to the called number, and route the call after changing the number back to the S-CSCF; and receiving the short message carrying the calling number sent by the SMSC, carrying out number changing according to the called number, and sending the short message containing the number-changed calling number back to the SMSC;
wherein the calling number change module is further configured to change the calling number to a secondary number if the called number is a visited operator network number, and to change the calling number to a primary number otherwise.
7. The multiple number service platform of claim 6, further comprising:
the called function control module comprises a called number changing module which is configured to change the number of the auxiliary number which receives the voice and the short message so as to transfer the auxiliary number to the main number before the incoming call and the short message are received.
8. The multi-number service platform according to claim 6, wherein after the multi-number service is opened, the multi-number service platform can be registered as an MSC/VLR on the HLR to which the secondary number belongs.
9. A system for implementing multiple number services across network operators, comprising:
a memory having stored thereon computer executable instructions; and
a processor coupled to the memory and executing the computer-executable instructions to implement the method of implementing multi-number services across network operators as recited in any of claims 1-5.
10. A non-transitory computer-readable storage medium having stored thereon computer-executable instructions that, when executed by one or more processors, cause the one or more processors to implement the method of implementing a multi-number service across network operators according to any of claims 1-5.
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