CN109873795B - Gateway office call connection method, gateway office and computer readable storage medium - Google Patents
Gateway office call connection method, gateway office and computer readable storage medium Download PDFInfo
- Publication number
- CN109873795B CN109873795B CN201711263214.8A CN201711263214A CN109873795B CN 109873795 B CN109873795 B CN 109873795B CN 201711263214 A CN201711263214 A CN 201711263214A CN 109873795 B CN109873795 B CN 109873795B
- Authority
- CN
- China
- Prior art keywords
- network
- call
- called user
- gateway
- domain
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Data Exchanges In Wide-Area Networks (AREA)
- Telephonic Communication Services (AREA)
Abstract
The disclosure provides a gateway office call connection method, a gateway office and a computer readable storage medium, and relates to the technical field of communication. The call connection method of the gateway office comprises the following steps: a calling party attribution domain gateway receives a calling request from a calling party; the gateway office of the home domain of the calling subscriber inquires the home network of the called subscriber from ENUM/DNS; under the condition that the home network of the called user is a different network, the gateway office of the home domain of the calling user connects the call to the different network to which the called user belongs. By the method, the gateway of the home domain of the calling user can inquire the home network of the called user from the ENUM/DNS and connect the call to the corresponding network, thereby realizing the different network connection of the circuit domain call and the IMS domain call and improving the efficiency of the different network call connection.
Description
Technical Field
The present disclosure relates to the field of communications technologies, and in particular, to a gateway call connection method, a gateway and a computer-readable storage medium.
Background
ENUM (Telephone Number Mapping working group)/DNS (Domain Name System) plays an important role in IMS (IP Multimedia Subsystem) network communication, and each communication call needs to query ENUM for NAPTR (Name Authority Pointer), translate a called Number in a Number format into an SIP (Session Initiation Protocol) URI (Uniform Resource Identifier) format, and then query SRV (Service Location) and a (Address) record in DNS to resolve an IP Address and a port to a destination network element. Based on ENUM, an IMS network opens a Number Portability, and an NPDB (Number Portability Database) is built in an ENUM network element. When an IMS user dials a mobile called number, an NPDB is inquired to acquire carry-in and carry-out information of the mobile called number while an S-CSCF (Home-Call Session Control Function) network element makes NAPTR inquiry to an ENUM.
Disclosure of Invention
The inventor finds that for a circuit domain calling user in a non-IMS domain, a call for dialing a different network mobile number does not need to enter the IMS domain, the call can directly enter a different network operator gateway from an interworking gateway office in the place of a called party, and the whole telephone traffic route is in the circuit domain. If the telephone traffic of the circuit domain needs to be forced to enter the IMS domain according to the inquiry rule of number portability, after the ENUM/DPDB is inquired in the IMS domain, the telephone traffic of the circuit domain is transferred out of the IMS domain to enter the interworking gateway office to cross the network, thereby reducing the call connection efficiency.
An object of the present disclosure is to improve the efficiency of inter-network call connection.
According to an aspect of the present disclosure, a gateway office call connection method is provided, including: a calling party attribution domain gateway receives a calling request from a calling party; the gateway office of the home domain of the calling subscriber inquires the home network of the called subscriber from ENUM/DNS; under the condition that the home network of the called user is a different network, the gateway office of the home domain of the calling user connects the call to the different network to which the called user belongs.
Optionally, the gateway of home domain of the calling subscriber sends the called subscriber number to ENUM/DNS to query the home network of the called subscriber; receiving called user information fed back by ENUM/DNS, if the home network of the called user is a different network, the called user information comprises a different network calling identifier, a called user number and the different network information to which the called user belongs; and sending a different network call connection message to the different network to which the called user belongs to connect the call to the different network, wherein the different network call connection message comprises a different network call identifier and a called user number.
Optionally, the home domain gateway of the calling user receives a call request from the calling user through the circuit domain or the IMS network.
Optionally, the step of the calling party home domain gateway switching office connecting the call to the called party home heterogeneous network includes: the calling User attributive domain gateway connects the calling to the called User attributive different gateway office through the inter-office ISUP (ISDN User Part) signaling.
Optionally, the step of the calling party home domain gateway switching office connecting the call to the called party home heterogeneous network includes: the calling user home domain gateway connects the call to a called user home heterogeneous network IBCF (Interconnection Border Control Function) node through SIP signaling.
Optionally, the gateway of the home domain of the calling subscriber connects the call from the circuit domain to the gateway of the different domain to which the called subscriber belongs.
Optionally, the gateway of the home domain of the calling subscriber connects the call from the circuit domain to the IBCF node of the foreign network to which the called subscriber belongs.
Optionally, the calling user home domain gateway connects the call from the IMS network to the called user home heterogeneous gateway.
Optionally, the calling user home domain gateway connects the call from the IMS network to the called user home heterogeneous IBCF node.
By the method, the gateway of the home domain of the calling user can inquire the home network of the called user from the ENUM/DNS and connect the call to the corresponding network, thereby realizing the different network connection of the circuit domain call and the IMS domain call and improving the efficiency of the different network call connection.
According to another aspect of the present disclosure, a gateway office is provided, comprising: a call receiving unit configured to receive a call request from a calling subscriber; a home network query unit configured to query the ENUM/DNS for a home network of the called subscriber; and the call connection unit is configured to connect the call to the different network to which the called user belongs under the condition that the home network of the called user is the different network.
Optionally, the home network querying unit is configured to send the called user number to the ENUM/DNS to query the home network of the called user, and obtain information of the called user from the ENUM/DNS, where, if the home network of the called user is a foreign network, the information of the called user includes a foreign network call identifier, the called user number, and the foreign network information to which the called user belongs; the call connection unit is configured to send a different network call connection message to a different network to which the called user belongs so as to connect the call to the different network, wherein the different network call connection message comprises a different network call identifier and a called user number.
Optionally, the call receiving unit is configured to receive a call request from the calling user through the circuit domain or the IMS network.
Optionally, the call connection unit is configured to: the call is connected to the different gateway office to which the called user belongs through ISUP signaling of the user part of the interoffice integrated service digital network.
Optionally, the call is connected to the foreign network IBCF to which the called user belongs through SIP signaling.
Optionally, the gateway office connects the call from the circuit domain to a different gateway office to which the called user belongs.
Optionally, the gateway office connects the call from the circuit domain to the heterogeneous network IBCF to which the called user belongs.
Optionally, the gateway office connects the call from the IMS network to a different gateway office to which the called user belongs.
Optionally, the gateway office connects the call from the IMS network to the foreign network IBCF to which the called user belongs.
According to yet another aspect of the present disclosure, a gateway is presented, comprising a memory; and a processor coupled to the memory, the processor configured to perform any of the gateway call connection methods above based on instructions stored in the memory.
The gateway office can inquire the home network of the called user from the ENUM/DNS and connect the call to the corresponding network, thereby realizing the different network connection of the circuit domain call and the IMS domain call and improving the efficiency of the different network call connection.
According to yet another aspect of the present disclosure, a computer-readable storage medium is provided, on which computer program instructions are stored, which instructions, when executed by a processor, implement any of the above gateway office call connection methods.
Thus, the computer readable storage medium can inquire the home network of the called user from the ENUM/DNS by executing the instruction on the computer readable storage medium, and connect the call to the corresponding network, thereby realizing the different network connection of the circuit domain call and the IMS domain call and improving the efficiency of the different network call connection.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this disclosure, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure and not to limit the disclosure. In the drawings:
fig. 1 is a flowchart of an embodiment of a gateway call connection method according to the present disclosure.
Fig. 2 is a flowchart of another embodiment of the gateway call connection method of the present disclosure.
Fig. 3A is a signaling flowchart of an embodiment of a gateway call connection method according to the present disclosure.
Fig. 3B is a signaling flowchart of another embodiment of the gateway call connection method of the present disclosure.
Fig. 3C is a signaling flow diagram of another embodiment of the gateway call connection method of the present disclosure.
Fig. 3D is a signaling flow diagram of a gateway office call connection method according to still another embodiment of the present disclosure.
Figure 4 is a schematic diagram of one embodiment of a gateway office of the present disclosure.
Fig. 5 is a schematic diagram of an embodiment of an application scenario of the gateway of the present disclosure.
Fig. 6 is a schematic diagram of yet another embodiment of a gateway office of the present disclosure.
Fig. 7 is a schematic diagram of yet another embodiment of a gateway office of the present disclosure.
Detailed Description
The technical solution of the present disclosure is further described in detail by the accompanying drawings and examples.
A flow chart of one embodiment of the gateway call connection method of the present disclosure is shown in fig. 1.
In step 101, a calling party home domain gateway receives a call request from a calling party. In one embodiment, the call request may be from the circuit domain or from the IMS domain.
In step 102, the calling subscriber home domain gateway office queries ENUM/DNS for the home network of the called subscriber. The gateway of the home domain of the calling user can send the called user number to the ENUM/DNS, and the ENUM/DNS feeds back the home network information of the called user number after being inquired. In an embodiment, when the home network of the called user is a different network, the feedback information may further include a different network call identifier, so that the home domain gateway of the calling user specifies that the home network of the called user number is different from the calling user.
In step 103, in case that the home network of the called user is a different network, the gateway of the home domain of the calling user connects the call to the different network to which the called user belongs.
By the method, the gateway of the home domain of the calling user can inquire the home network or the home operator of the called user from the ENUM/DNS and connect the call to the corresponding network, thereby realizing the different-network connection of the circuit domain call and the IMS domain call and improving the efficiency of the different-network call connection.
Fig. 2 is a flowchart of another embodiment of the gateway call connection method of the present disclosure.
In step 201, the home domain gateway of the calling user receives a call request from the calling user through the circuit domain or the IMS network.
In step 202, the called subscriber number is sent to the ENUM/DNS to query the home network of the called subscriber. For example, the information sent by the gateway office to ENUM/DNS includes "+ 86+ called subscriber number", where +86 is the chinese area code.
In step 203, receiving the called user information fed back by the ENUM/DNS, and if the home network of the called user is a heterogeneous network, the called user information includes a heterogeneous network call identifier, a called user number, and heterogeneous network information to which the called user belongs. For example, the called subscriber information includes "+ 86+ RN + called subscriber number @ called subscriber home-owned foreign network information", where RN is a foreign network call identifier.
In step 204, a different network call connection message is sent to the different network to which the called subscriber belongs to connect the call to the different network, where the different network call connection message includes a different network call identifier and a called subscriber number, for example, the different network call connection message includes "+ 86+ RN + called subscriber number". In one embodiment, the gateway of the home domain of the calling user may connect the call to the different gateway of the home domain of the called user through the inter-office ISUP signaling to implement the connection to the circuit domain of the called user, or may connect the call to the different network IBCF of the home domain of the called user through the SIP signaling to implement the connection to the IMS domain of the called user.
By the method, the network to which the called user belongs can be inquired in the gateway office aiming at the calls of the circuit domain and the IMS domain, particularly the call of the circuit domain does not need to enter the IMS domain to inquire forcibly, and the call connection efficiency is improved.
In one embodiment, an I module may be added on the basis of a conventional gateway, a call from a calling user arrives at the I module first, after a called user home network is queried, if the called user home network is determined to be connected through an IMS domain, the I module interacts with a heterogeneous network IBCF through an SIP protocol, and if the called user home network is determined to be connected through a circuit domain, the I module informs the query result to the conventional gateway, and the conventional gateway interacts with the heterogeneous gateway.
By the method, improvement can be performed on the basis of the traditional gateway, compatibility of the existing network is guaranteed, and popularization and application are facilitated.
The signaling flow diagrams of the gateway call connection method of the present disclosure are shown in fig. 3A to 3D. Fig. 3A is a signaling flow chart of inter-network ISUP interworking when an in-network circuit domain calling dials a different network mobile user:
in 301, the CS (Circuit Switched) domain softswitch 31 sends a call called as "mobile number" and a call called as "foreign mobile number" to the gateway I-module 32, and uses SIP-I protocol, Invite message carries a calling SDP offer, and the I-module 32 receives a call called as "0086139 xxx/139 xxx".
At 302, I-module 32 initiates a NAPTR query to home zone secondary ENUM/DNS 33.
In 303, ENUM/DNS 33 returns "+ 86+ area code + RN +139xxx @ home domain name" to the I-module, and the return result received by the I-module 32 is in TEL URI format.
In 304, the I module 32 transforms the called number of the IAM (Initial Address Message) carried in the Invite Message into "0 + area number + RN +139 xxx", and sends the "0 + area number + RN +139 xxx" to the legacy gateway 34. In one embodiment, a stateless proxy mode is adopted, and I module identification or address is not added in a Contack or Record Route header field; the Invite message carries the calling SDP request unchanged.
In 305, the conventional integrated gateway 34 converts the called number in the IAM message into "+ 86+ RN +139 xxx" and sends the xxx to the different gateway, where ISUP signaling is used between the offices.
At 306, the legacy gateway 34 receives an ACM (Address Complete Message) Message from the foreign gateway 35.
In 307, the conventional gateway 34 maps the ACM message in a 180 message, sends the 180 message to the I module, and carries a called SDP (Session Description Protocol) response.
In 308, the I-module forwards the 180 message to the CS domain softswitch 31 and carries the called SDP answer.
In 309, the CS domain softswitch 31 feeds back a PRACK message confirmation to the legacy integrated gateway 34.
At 310, the legacy integrated gateway 34 receives an ANM (answer Message) from the foreign gateway 35.
At 311, the legacy synthetic gateway 34 maps the ANM message in a 200 message to the CS domain soft switch 31.
In 312, the CS domain soft switch 31 returns an ACK (Acknowledgement) confirmation to the legacy integrated gateway.
By the method, the calling party of the circuit domain in the network can dial the mobile user of the different network to adopt circuit domain interaction, the user does not need to enter the IMS domain to inquire the home network of the called user forcibly, and the call connection efficiency is improved.
Fig. 3B is a signaling flow chart of inter-network SIP interworking when an in-network circuit domain calling dials a different network mobile user:
in 321, the CS domain softswitch 31 sends the call with the calling party being "mobile number" and the called party being "foreign number" to the I-module 32 in the gateway, and uses SIP-I protocol, Invite message carries the calling SDP1 request, and the I-module 32 receives the call with the called party being "0086139 xxx/139 xxx".
At 322, I module 32 initiates a NAPTR query to home zone secondary ENUM/DNS 33.
At 323, ENUM/DNS 33 returns "+ 86+ area code + RN +139xxx @ home domain name", and the return received by I-module 32 is in TEL URI format.
At 324, the I-module 32 converts the called number to "+ 86+ RN +139 xxx" to send to the heterogeneous IBCF 36. The Invite message masks the home network topology and carries the calling SDP2 offer.
In 325, the different network IBCF 36 returns a 180 response, carrying the called SDP2 answer.
In 326, the I module 32 performs IMS SIP and SIP-I protocol adaptation, maps the ACM to the 180 response, forwards the response to the CS domain soft switch, carries the called SDP1 answer, and performs codec conversion.
The CS domain softswitch 31 returns a PRACK confirmation to the I-module 32 at 327.
At 328, the I module 32 returns a PRACK confirmation to the foreign IBCF 36.
In 329, the foreign IBCF 36 returns a 200 response.
In 330, the I-module 31 maps the ANM in a 200 response to the CS domain soft switch.
In 331, the CS domain softswitch 31 returns an ACK confirmation to the I-module 32.
In 332, the I-module 32 returns an ACK confirmation to the foreign IBCF 36.
Fig. 3C is a signaling flow chart of the inter-network ISUP interworking when a calling party in the different network dials a mobile subscriber in the home network:
in 341, the different gateway office 35 calls the local legacy gateway office 34, and the called number is "+ 861241139 xxx", where 1241 is the different network call identifier.
At 342, the legacy gateway 34 sends the call with the called number "+ 861241" to the I-module 32, using SIP protocol, with the Invite message carrying the calling SDP request.
In 343, the I module 32 receives the call called "+ 861241139 xxx", rejects 1241 and initiates NAPTR query to the local area second-level ENUM/DNS 33, with the query number "+ 86139 xxx".
At 344 ENUM/DNS 33 returns "+ 86139xxx @ home domain name", and the returned result received by I-module 32 is in SIP URI format.
In 345, I module 32 makes SRV query and a record query to ENUM/DNS 33 again according to the returned result, obtains the address of called home domain I-CSCF (Call Session Control Function), and sends the Call to called home domain I-CSCF 37; adopting a stateless proxy mode, adding I module identification or address in the Contack and Record Route header fields, mapping and converting the soft switch SIP protocol to the IMS SIP protocol, and adding IMS SIP related header fields (without requiring the support of Precondition); the Invite message carries the calling SDP offer unchanged. The I-CSCF is the entry point to the IMS home network. In the registration process, the I-CSCF selects an S-CSCF for the user by querying the HSS.
In 346-348, the called home domain I-CSCF 37 queries the HSS 38, obtains the S-CSCF 39 registered by the called user, and forwards the call to the S-CSCF 39.
At 349, the S-CSCF 39 forwards the call to the P-CSCF 30 with which the user is registered, continuing to the called terminal. The P-CSCF is the entry point to the IMS visited network.
At 350, the called terminal rings, returns a 180 response, and forwards the response to the I module via the P-CSCF, S-CSCF, and I-CSCF.
In 351, the I-module 32 forwards the 180 response to the legacy gateway 34.
In 352-354, the conventional gateway 34 returns an ACM message to the different gateway 35, returns a PRACK confirmation to the S-CSCF, and forwards the PRACK confirmation to the called terminal through the P-CSCF.
In 355-356, the called terminal goes off-hook, returns 200 responses and carries a called SDP response; and forwarded to the conventional integrated gateway 34 via the P-CSCF and the S-CSCF.
And in 357-359, the traditional gateway 34 sends an ANM message to the heterogeneous gateway 35, returns an ACK confirmation to the S-CSCF, and forwards the ACK confirmation to the called terminal through the P-CSCF.
By the method, under the condition that the circuit domain call is continued, the called end I module can inquire the attribution of the called number to the ENUM/DNS of the local domain and determine that the called number belongs to the local network, so that the reliability of the call is improved; meanwhile, the gateway can also realize the inquiry of the called home domain I-CSCF address, thereby further improving the call connection efficiency.
Fig. 3D is a signaling flow diagram of inter-network SIP interworking when a calling party of a different network dials a mobile subscriber of a home network:
in 361, the IBCF 36 calls the gateway I module 32, and the called number is "+ 861241189 xxx". The traditional gateway office sends the call with the called number "+ 861241" to the I-module, and uses the SIP protocol, and Invite message carries the request of calling SDP 1.
In 362, the I module 32 receives the call called "+ 861241189 xxx", rejects the different-network call identifier 1241 and initiates NAPTR query to the local area second-level ENUM/DNS 33, where the query number is "+ 86189 xxx".
At 363, ENUM/DNS 33 returns a "no search name".
In 364, the I-module 32 directs the call to the CS domain softswitch 31 with the called number "0086189 xxx" according to the returned result; adopting a stateful proxy mode; the Invite message carries the calling SDP2 offer. The CS domain softswitch 31 connects the call to the called terminal.
At 365, the called terminal rings and the CS domain softswitch 31 returns a 180 response to the I-module 32, carrying the called SDP1 response.
In 366, the I module 21 forwards the 180 response to the heterogeneous IBCF 36.
The foreign IBCF 36 returns a PRACK confirmation 367.
At 368, the I-module 32 forwards the PRACK confirmation to the CS domain soft switch 31.
In 369-372, the called terminal goes off-hook, and the CS domain soft switch 31 returns a 200 response to the I module 32; the I module 32 returns a 200 response to the heterogeneous network IBCF 36, and the heterogeneous network IBCF 36 returns an ACK confirmation; the I-module forwards the ACK acknowledgement to the CS domain softswitch 31.
Through the signaling interaction in the 3A-3D embodiments, the protocol conversion and adaptation mechanism of the I module and the in-network circuit domain soft switch, the in-network IMS domain and the inter-network IBCF intercommunication can be realized, the gateway office queries the number home network or the operator from the ENUM/DNS, and the connection of the circuit domain and the IMS domain call is completed.
A schematic diagram of one embodiment of the gateway of the present disclosure is shown in fig. 4.
The call receiving unit 401 can receive a call request from a calling subscriber. In one embodiment, the call request may be from the circuit domain or from the IMS domain.
Home network querying element 402 may be capable of querying the ENUM/DNS for the home network of the called subscriber. In one embodiment, home network querying unit 402 may send the called user number to ENUM/DNS, and after being queried, ENUM/DNS feeds back home network information of the called user number. In an embodiment, when the home network of the called user is a different network, the feedback information may further include a different network call identifier, so that the home domain gateway of the calling user specifies that the home network of the called user number is different from the calling user.
The call connection unit 403 can connect the call to the different network to which the called user belongs when the home network of the called user is the different network.
The gateway office can inquire the home network of the called user from the ENUM/DNS and connect the call to the corresponding network, thereby realizing the different network connection of the circuit domain call and the IMS domain call and improving the efficiency of the different network call connection.
A schematic diagram of an embodiment of an application scenario of the gateway 51 of the present disclosure is shown in fig. 5, and the gateway 511 may include a legacy gateway 511 and an I module 512. I-module 512 is capable of receiving a call request from CS domain 52 and/or IMS domain 53, I-module 512 queries EUNM/DNS 54 for the home network information of the called subscriber and gets a feedback result. When the called user is determined to be a user in a different network, if the called user is determined to adopt circuit domain communication, the called user is connected with the gateway of the different network 55 through the ISUP of the traditional gateway 511, and if the called user is determined to adopt IMS domain communication, the I module adopts SIP to be connected with the IBCF 56 in the different network.
The gateway can be improved on the basis of the traditional gateway, ensures the compatibility of the existing network and is beneficial to popularization and application.
A schematic structural diagram of an embodiment of the gateway of the present disclosure is shown in fig. 6. The gateway comprises a memory 601 and a processor 602. Wherein: the memory 601 may be a magnetic disk, flash memory, or any other non-volatile storage medium. The memory is used for storing the instructions in the corresponding embodiments of the gateway call connection method. Processor 602 is coupled to memory 601 and may be implemented as one or more integrated circuits, such as a microprocessor or microcontroller. The processor 602 is configured to execute the instruction stored in the memory, and can implement the inter-network connection between the circuit domain call and the IMS domain call, thereby improving the efficiency of inter-network call connection.
In one embodiment, as also shown in FIG. 7, the gateway 700 includes a memory 701 and a processor 702. Processor 702 is coupled to memory 701 by a BUS BUS 703. The gateway 700 may also be connected to external storage 705 via a storage interface 704 for the purpose of invoking external data, and may also be connected to a network or another computer system (not shown) via a network interface 706. And will not be described in detail herein.
In the embodiment, the data instruction is stored in the memory, and the processor processes the instruction, so that the different-network connection of the circuit domain call and the IMS domain call can be realized, and the efficiency of the different-network call connection is improved. .
In another embodiment, a computer readable storage medium has stored thereon computer program instructions which, when executed by a processor, implement the steps of the method in the corresponding embodiment of the gateway office call connection method. As will be appreciated by one skilled in the art, embodiments of the present disclosure may be provided as a method, apparatus, or computer program product. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable non-transitory storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present disclosure is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the disclosure. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams 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, embedded processor, 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 specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
Thus far, the present disclosure has been described in detail. Some details that are well known in the art have not been described in order to avoid obscuring the concepts of the present disclosure. It will be fully apparent to those skilled in the art from the foregoing description how to practice the presently disclosed embodiments.
The methods and apparatus of the present disclosure may be implemented in a number of ways. For example, the methods and apparatus of the present disclosure may be implemented by software, hardware, firmware, or any combination of software, hardware, and firmware. The above-described order for the steps of the method is for illustration only, and the steps of the method of the present disclosure are not limited to the order specifically described above unless specifically stated otherwise. Further, in some embodiments, the present disclosure may also be embodied as programs recorded in a recording medium, the programs including machine-readable instructions for implementing the methods according to the present disclosure. Thus, the present disclosure also covers a recording medium storing a program for executing the method according to the present disclosure.
Finally, it should be noted that: the above examples are intended only to illustrate the technical solutions of the present disclosure and not to limit them; although the present disclosure has been described in detail with reference to preferred embodiments, those of ordinary skill in the art will understand that: modifications to the specific embodiments of the disclosure or equivalent substitutions for parts of the technical features may still be made; all such modifications are intended to be included within the scope of the claims of this disclosure without departing from the spirit thereof.
Claims (12)
1. A gateway office call connection method comprises the following steps:
a calling party attribution domain gateway receives a calling request from a calling party;
the gateway office of the home domain of the calling subscriber inquires the home network of the called subscriber from the domain name system ENUM/DNS of the mapping working group of the telephone number;
under the condition that the home network of the called user is a different network, the gateway office of the home domain of the calling user connects the call to the different network to which the called user belongs, and the method comprises the following steps: the gateway office of the home domain of the calling user connects the call to the different gateway office of the home domain of the called user through ISUP signaling of the user part of the interoffice integrated service digital network so as to realize the connection to the circuit domain of the called user.
2. The method of claim 1, wherein,
the gateway of the home domain of the calling user sends the number of the called user to the ENUM/DNS to inquire the home network of the called user;
receiving called user information fed back by the ENUM/DNS, wherein the called user information comprises a different network calling identifier, a called user number and different network information to which the called user belongs if the home network of the called user is a different network;
and sending a different network call connection message to the different network to which the called user belongs to connect the call to the different network, wherein the different network call connection message comprises a different network call identifier and a called user number.
3. The method of claim 1, wherein the calling party home domain gateway receives the call request from the calling party through a circuit domain or an internetworking protocol multimedia subsystem (IMS) network.
4. The method of claim 1, wherein the calling party home domain gateway switching the call to the called party home foreign network further comprises:
and the gateway of the home domain of the calling user connects the call to a foreign network Interconnection Border Control Function (IBCF) node to which the called user belongs through Session Initiation Protocol (SIP) signaling so as to realize connection to the IMS domain of the called user.
5. The method according to any one of claims 1 to 4, wherein the calling party home domain gateway connects the call from the circuit domain to the called party home heterogeneous gateway; or
Connecting a call from a circuit domain to a heterogeneous network IBCF to which a called user belongs; or
Connecting the call from the IMS network to a different gateway office to which the called user belongs; or
And connecting the call from the IMS network to the foreign network IBCF which the called user belongs to.
6. A gateway office, comprising:
a call receiving unit configured to receive a call request from a calling subscriber;
a home network query unit configured to query a telephone number mapping workgroup domain name system (ENUM/DNS) for a home network of a called subscriber;
the call connection unit is configured to connect the call to the different network to which the called user belongs under the condition that the home network of the called user is the different network, and comprises the following steps: the gateway office of the home domain of the calling user connects the call to the different gateway office of the home domain of the called user through ISUP signaling of the user part of the interoffice integrated service digital network so as to realize the connection to the circuit domain of the called user.
7. The gateway office of claim 6,
the home network query unit is configured to send a called user number to the ENUM/DNS to query a home network of a called user, and obtain information of the called user from the ENUM/DNS, where if the home network of the called user is a foreign network, the information of the called user includes a foreign network call identifier, a called user number, and foreign network information to which the called user belongs;
the call connection unit is configured to send a heterogeneous network call connection message to a heterogeneous network to which the called user belongs so as to connect the call to the heterogeneous network, wherein the heterogeneous network call connection message comprises a heterogeneous network call identifier and a called user number.
8. The gateway office of claim 6, wherein the call receiving unit is configured to receive the call request from the calling user over a circuit domain or an internetworking protocol multimedia subsystem, IMS, network.
9. The gateway office of claim 6, wherein the call connection unit is further configured to:
and connecting the call to a heterogeneous network Interconnection Border Control Function (IBCF) node to which the called user belongs through Session Initiation Protocol (SIP) signaling so as to realize the connection to the IMS domain of the called user.
10. The gateway office according to any of claims 6 to 9, wherein the gateway office connects a call from a circuit domain to a different gateway office to which a called user belongs; or
Connecting a call from a circuit domain to a heterogeneous network IBCF to which a called user belongs; or
Connecting the call from the IMS network to a different gateway office to which the called user belongs; or
And connecting the call from the IMS network to the foreign network IBCF which the called user belongs to.
11. A gateway office comprises
A memory; and
a processor coupled to the memory, the processor configured to perform the method of any of claims 1-5 based on instructions stored in the memory.
12. A computer readable storage medium having stored thereon computer program instructions which, when executed by a processor, implement the steps of the method of any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711263214.8A CN109873795B (en) | 2017-12-05 | 2017-12-05 | Gateway office call connection method, gateway office and computer readable storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711263214.8A CN109873795B (en) | 2017-12-05 | 2017-12-05 | Gateway office call connection method, gateway office and computer readable storage medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109873795A CN109873795A (en) | 2019-06-11 |
| CN109873795B true CN109873795B (en) | 2021-06-29 |
Family
ID=66915915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711263214.8A Active CN109873795B (en) | 2017-12-05 | 2017-12-05 | Gateway office call connection method, gateway office and computer readable storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109873795B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112752260B (en) * | 2019-10-31 | 2023-06-16 | 中国电信股份有限公司 | Equipment and method for number-carrying network-transfer transmitting end inquiry |
| CN114258063B (en) * | 2020-09-25 | 2023-11-21 | 中国移动通信集团设计院有限公司 | Method and device for processing internet call, electronic equipment and storage medium |
| CN114422964A (en) * | 2020-10-28 | 2022-04-29 | 中国电信股份有限公司 | Method, system, and storage medium for messaging between 5G messaging users/VoLTE users |
| CN115150451A (en) * | 2021-03-15 | 2022-10-04 | 中国电信股份有限公司 | Method and device for internetworking, computer readable medium and electronic equipment |
| CN115766668A (en) * | 2021-09-03 | 2023-03-07 | 中国移动通信集团山东有限公司 | Automatic disaster recovery method, electronic device, and storage medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101662482A (en) * | 2009-09-29 | 2010-03-03 | 华为技术有限公司 | Method, equipment and system for circuit domain user to call IMS domain user |
| CN104202786A (en) * | 2014-08-27 | 2014-12-10 | 中国联合网络通信集团有限公司 | Method and device for calling routing |
| CN106603881A (en) * | 2015-10-20 | 2017-04-26 | 中国电信股份有限公司 | Method, device, and system of realizing call routing in IMS network |
| CN107135132A (en) * | 2016-02-26 | 2017-09-05 | 中国移动通信集团公司 | A kind of network intercommunication method and network entity, controlled entity |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE406761T1 (en) * | 2005-09-06 | 2008-09-15 | Huawei Tech Co Ltd | METHOD AND SYSTEM FOR TELEPHONE NUMBER PORTABILITY IN IMS NETWORKS |
| EP2856724B1 (en) * | 2012-05-24 | 2017-09-27 | Telefonaktiebolaget LM Ericsson (publ) | Method, network and network entity for establishing a communication session to a user equipment roaming in ims |
| US9288238B2 (en) * | 2013-10-25 | 2016-03-15 | At&T Intellectual Property I, Lp | Optimizing call bearer path using session initiation protocol proxy |
| WO2017098324A1 (en) * | 2015-12-11 | 2017-06-15 | Belgacom International Carrier Services Sa (Bics) | System and method for powering voice over long term evolution (volte) in long term evolution networks |
-
2017
- 2017-12-05 CN CN201711263214.8A patent/CN109873795B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101662482A (en) * | 2009-09-29 | 2010-03-03 | 华为技术有限公司 | Method, equipment and system for circuit domain user to call IMS domain user |
| CN104202786A (en) * | 2014-08-27 | 2014-12-10 | 中国联合网络通信集团有限公司 | Method and device for calling routing |
| CN106603881A (en) * | 2015-10-20 | 2017-04-26 | 中国电信股份有限公司 | Method, device, and system of realizing call routing in IMS network |
| CN107135132A (en) * | 2016-02-26 | 2017-09-05 | 中国移动通信集团公司 | A kind of network intercommunication method and network entity, controlled entity |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109873795A (en) | 2019-06-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109873795B (en) | Gateway office call connection method, gateway office and computer readable storage medium | |
| US7969967B2 (en) | Number portability for an IMS network | |
| US8792481B2 (en) | Methods, systems, and computer program products for providing inter-carrier IP-based connections using a common telephone number mapping architecture | |
| US8391273B2 (en) | Methods, systems, and computer program products for providing intra-carrier IP-based connections using a common telephone number mapping architecture | |
| US7787878B2 (en) | Method and system for enabling number portability in IMS networks | |
| US7948967B2 (en) | Methods, systems, and computer program products for enabling non-IMS queries of a common telephone number mapping system | |
| US7606202B2 (en) | Methods, systems, and computer program products for offloading call control services from a first network of a first type to a second network of a second type | |
| US8406400B2 (en) | Techniques for providing multimedia communication services to a subscriber | |
| US8861508B2 (en) | Routing a call setup request to a destination serving node in an IMS network | |
| CN101569153B (en) | It is overlapping that SCP between GSM and IMS controls | |
| US8571015B2 (en) | Methods, systems, and computer program products for enabling non-IMS queries of a common telephone number mapping system | |
| US20060206504A1 (en) | IMS network access using legacy devices | |
| CN103250388B (en) | For the method and apparatus of across a network and business route between networks | |
| CN100450292C (en) | User registration and conversation switching method in IP multimedia terminal and system | |
| US20100002682A1 (en) | Interworking method and interworking control unit, method and system for implementing simulation services | |
| US8908665B2 (en) | Methods for routing of calls in internet protocol multimedia subsystem centralized services networks and related gateway mobile switching centres (GMSC) and home location registers (HLR) | |
| CN100550851C (en) | A kind of route marking switch method, Apparatus and system | |
| CN102404233A (en) | Method for controlling routing query of IMS user and IMS network | |
| EP2339780B1 (en) | Routing signaling messages through networks | |
| KR101525393B1 (en) | Call processing apparatus and method for providing number portability service, and ip multimedia subsystem and method for providing number portability service using ims | |
| CN103812771A (en) | Method and system for anchoring service routing in IP (Internet protocol) multimedia subsystem |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |