CN110351701A - Communication means, device and the storage medium of international roaming voice service - Google Patents

Abstract

The invention provides a communication method, device and storage medium for an international roaming voice service. The communication method includes: receiving a first call request sent by a calling user equipment, querying the roaming status and opened service information of the called user equipment according to the international mobile subscriber identity ISMI of the called user in the first call request, and determining the called user equipment When the calling user equipment is in the international roaming state and the roaming communication service has been opened, the first call request is sent to the border SBC, so that the border SBC pages the called user equipment through the VoIP network. The above-mentioned communication method realizes the voice communication connection between the roaming user and the user of the domestic telecommunication network in VoIP mode.

Description

Communication method, device and storage medium for international roaming voice service

technical field

The embodiments of the present invention relate to the technical field of communication, and in particular to a communication method, device and storage medium for an international roaming voice service.

Background technique

VoIP (Voice over IP) is based on an IP packet switching network. Through a series of processes such as digitizing, compressing, packaging, and encapsulating traditional analog voice signals, voice services can be carried through the IP network. The classic VoIP network architecture As shown in Figure 1. Limited by the operators themselves and policy reasons, VoIP services have not been opened in China, mainly based on the No.7 telecom network for voice communication.

When a user roams abroad, there are two main ways to achieve voice communication with domestic users: 1) roaming users use the local operator's telecommunication network to achieve roaming voice communication with domestic users, and the tariff is relatively expensive; 2) roaming users use IP networks to implement IP voice communication with domestic users, such as WeChat voice and so on. When the domestic user directly pages the mobile phone number of the overseas user through the domestic telecommunication network, if the overseas user has not opened the roaming voice service at this time, the user cannot be paged through the local operator's telecommunication network.

Contents of the invention

The invention provides a communication method, device and storage medium for an international roaming voice service, which realizes the voice communication connection between a roaming user and a domestic telecommunication network user in a VoIP manner, and the fee is low.

A first aspect of the present invention provides a communication method for an international roaming voice service, including:

receiving a first call request sent by the calling user equipment, where the first call request includes the International Mobile Subscriber Identity ISMI of the called user;

When it is determined that the called user equipment is in the international roaming state and the roaming communication service has been opened, the first call request is sent to the border SBC, so that the border SBC pages the called user equipment through the VoIP network.

In a possible implementation manner, the determining that the called user equipment is in an international roaming state and has opened a roaming communication service includes:

determining the HSS to which the called user equipment belongs according to the ISMI of the called user;

According to the record information of the HSS to which the called user equipment belongs, it is determined whether the called user equipment is in an international roaming state and whether a roaming communication service is activated.

In a possible implementation manner, the receiving the first call request sent by the calling user equipment includes:

The first call request sent by the calling user equipment based on the No.7 signaling protocol is received.

A second aspect of the present invention provides a communication method for an international roaming voice service, including:

Receiving a first call request sent by the calling user equipment, where the first call request is a call request based on the No.7 signaling protocol;

The called user equipment is paged through the VoIP network, and the called user equipment is in an international roaming state and has opened a roaming communication service.

In a possible implementation manner, the paging the called user equipment through the VoIP network includes:

converting the first call request into a second call request based on the SIP protocol;

forwarding the second call request to the inbound SBC where the called user equipment visits, so that the inbound SBC pages the called user equipment through the SIP gateway.

In a possible implementation manner, the receiving the first call request sent by the calling user equipment includes:

The first call request sent by the calling user equipment and forwarded by the mobility management entity MME is received.

A third aspect of the present invention provides a communication device for an international roaming voice service, including:

A receiving module, configured to receive a first call request sent by the calling user equipment, where the first call request includes the International Mobile Subscriber Identity ISMI of the called user;

A sending module, configured to send the first call request to the border SBC when it is determined that the called user equipment is in an international roaming state and has opened a roaming communication service, so that the border SBC pages the called party through the VoIP network user equipment.

A fourth aspect of the present invention provides a communication device for an international roaming voice service, including:

A receiving module, configured to receive a first call request sent by the calling user equipment, where the first call request includes the International Mobile Subscriber Identity ISMI of the called user;

The paging module is used to page the called user equipment through the VoIP network, and the called user equipment is in the state of international roaming and has activated the roaming communication service.

A fifth aspect of the present invention provides a communication device for an international roaming voice service, including:

memory;

processor; and

Computer program;

Wherein, the computer program is stored in the memory and configured to be executed by the processor to implement the method according to any one of the first aspect of the present invention.

A sixth aspect of the present invention provides a communication device for an international roaming voice service, including:

memory;

processor; and

Computer program;

Wherein, the computer program is stored in the memory and is configured to be executed by the processor to implement the method according to any one of the second aspect of the present invention.

A seventh aspect of the present invention provides a computer-readable storage medium, on which a computer program is stored, and the computer program is executed by a processor to implement the method according to any one of the first aspect of the present invention.

An eighth aspect of the present invention provides a computer-readable storage medium, on which a computer program is stored, and the computer program is executed by a processor to implement the method according to any one of the second aspect of the present invention.

Embodiments of the present invention provide a communication method, device and storage medium for an international roaming voice service. The communication method includes: receiving a first call request sent by a calling user equipment, querying the roaming status and opened service information of the called user equipment according to the international mobile subscriber identity ISMI of the called user in the first call request, and determining the called user equipment When the calling user equipment is in the international roaming state and the roaming communication service has been opened, the first call request is sent to the border SBC, so that the border SBC pages the called user equipment through the VoIP network. The above-mentioned communication method realizes the voice communication connection between the roaming user and the user of the domestic telecommunication network in VoIP mode.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to these drawings without any creative effort.

Fig. 1 is the schematic diagram of existing VoIP network architecture;

FIG. 2 is a system architecture diagram of a communication method for an international roaming voice service provided by an embodiment of the present invention;

FIG. 3 is a schematic flowchart of a communication method for an international roaming voice service provided by an embodiment of the present invention;

FIG. 4 is a schematic flowchart of a communication method for an international roaming voice service provided by another embodiment of the present invention;

FIG. 5 is an interactive schematic diagram of a communication method for an international roaming voice service provided by an embodiment of the present invention;

FIG. 6 is a schematic functional structure diagram of a communication device for an international roaming voice service provided by an embodiment of the present invention;

FIG. 7 is a schematic functional structure diagram of a communication device for an international roaming voice service provided by another embodiment of the present invention;

FIG. 8 is a schematic diagram of a hardware structure of a communication device for an international roaming voice service provided by an embodiment of the present invention;

FIG. 9 is a schematic diagram of a hardware structure of a communication device for an international roaming voice service provided by another embodiment of the present invention.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

It should be understood that the terms "comprising" and "having" and any variations thereof, as used herein, are intended to cover a non-exclusive inclusion, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to Those steps or elements are not explicitly listed, but may include other steps or elements not explicitly listed or inherent to the process, method, product or apparatus.

FIG. 2 is a system architecture diagram of a communication method for an international roaming voice service provided by an embodiment of the present invention. As shown in FIG. 2 , the communication system provided by this embodiment includes a domestic telecommunication network and an international Internet network. The domestic telecommunication network is based on No. 7 signaling for transmission, and the international Internet network is based on SIP signaling for transmission.

Among them, No. 7 signaling (No. 7 signaling), also known as common channel signaling, is a signaling method for transmitting a group of voice channel signaling on a high-speed data link in a time-division manner. SIP signaling is an application-layer signaling control protocol used to create, modify, and release sessions of one or more participants. Sessions can be Internet multimedia conferences, IP telephony, or multimedia distribution.

The domestic telecommunications network in this embodiment includes user equipment UE1, base station eNB, mobility management entity MME, home subscriber server HSS and session border controller SBC1, referring to Figure 2, the functions of each device in Figure 2 are as follows:

eNB: eNodeB, which provides an air interface (air interface) for user equipment. User equipment can be connected to the eNB through wireless, and the eNB is responsible for managing UE, including resource allocation, scheduling, and management of access policies.

MME: Mobility Management Entity, one of the most important entities in the core network, provides NAS signaling transmission, user authentication and roaming management, and mobility management. Only after the signaling is established, can the core network EPC carry out subsequent service bearing.

HSS: Home Subscriber Server, belonging to the user server, stores all data information belonging to core network users. When the user connects to the MME, the information submitted by the user will be compared with the information in the HSS data server for authentication.

It should be noted that, in this embodiment, the HSS has the following two functions: First, the information about the user's roaming abroad is stored in the HSS, and when a domestic caller pages the user, the MME can know when authenticating with the HSS The user has roamed abroad; secondly, when the user applies for a customized roaming communication service, the HSS marks the user and sends the paging signaling of this call to the SBC network element.

SBC: Session Border Controller, Session Border Controller. SBC has gradually become a standard configuration product for NGN and IMS networks (like Lanswitch and routers), and is also widely known as BAC (Border Access Controller). Encountered NAT/FW traversal, security, intercommunication, QoS and other issues. The SBC is generally located between two service provider networks in a peer-to-peer environment, or between the access network and the backbone network that provide services to residential and business users. While some SBCs only handle signaling, most handle both signaling and media. This type of SBC realizes the communication between the component processing the signaling and the component processing the media stream signaling, which is performed inside the SBC.

It should be noted that in this embodiment, the SBC mainly implements the conversion between No.7 paging signaling and SIP signaling, including: converting No.7 signaling into SIP signaling and sending it to overseas Inbound SBC, paging roaming users; convert SIP signaling into No.7 signaling, realize the connection between domestic outbound SBC and foreign inbound SBC.

The international Internet network in this embodiment includes a session border controller SBC2, a SIP gateway, and a user equipment UE2. Referring to FIG. 2, the user equipment UE2 in FIG. 2 is connected to the Internet network through WIFI. The SIP gateway, that is, the voice gateway of the IP phone, addresses users and implements routing and distribution of voice media streams.

Based on the above-mentioned communication system architecture, the embodiment of the present invention provides a communication method for international roaming voice services, which realizes seamless voice communication connection between overseas roaming users and domestic users in VoIP mode, so that roaming users abroad use VoIP with lower tariffs. voice communication with domestic telecommunications network users.

The technical solution of the present invention will be described in detail below with specific embodiments. The following specific embodiments may be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments.

FIG. 3 is a schematic flowchart of a communication method for an international roaming voice service provided by an embodiment of the present invention. The method provided in this embodiment can be executed by any communication device that implements the international roaming voice service, and the communication device can be implemented by software and/or hardware.

In this embodiment, the communication device may be the mobility management entity MME shown in FIG. 2 , and the communication method provided in this embodiment will be described below with the MME as the execution subject.

As shown in Figure 3, the communication method provided by this embodiment includes the following steps:

S101. Receive a first call request sent by a calling user equipment, where the first call request includes an International Mobile Subscriber Identity ISMI of a called user.

Specifically, the MME receives the first call request sent by the calling user equipment through the base station eNB, and the first call request is a call request based on the No.7 signaling protocol.

S102. When it is determined that the called user equipment is in an international roaming state and has opened a roaming communication service, send a first call request to the border SBC, so that the border SBC pages the called user equipment through the VoIP network.

In this embodiment, the MME determines the HSS to which the called user belongs according to the ISMI of the called user in the first call request, and then determines whether the called user equipment is in the state of international roaming and whether it is activated according to the record information of the HSS to which the called user belongs. Roaming communication service.

Wherein, the record information of the HSS to which the called user belongs includes the location information of the called user and the service information opened by the called user. When the called user roams to a foreign heterogeneous network, the roaming MSC/VLR sends a location update request to the HSS to which the called user belongs. The location update request includes the called user's ISMI and the roaming MSCID. The HSS to which the called user belongs updates the location information of the called user according to the received location update request, so as to query the location information of the called user during subsequent voice calls.

It should be noted that the called user in this embodiment has pre-applied for the roaming communication service, which is different from the service in the prior art that realizes roaming voice communication with domestic users based on the telecommunication network of a foreign local operator. The roaming communication service of the embodiment is a voice communication service based on a foreign VoIP network and a domestic telecommunication network. The roaming communication service has a relatively low tariff and stable voice communication quality.

When the called user subscribes to the above roaming communication service, the domestic operator will record the user-customized service information on the HSS to which the called user belongs, so that the MME can transfer the call request according to the user-customized service information.

In the communication method provided by the embodiment of the present invention, by receiving the first call request sent by the calling user equipment, query the roaming status and opened services of the called user equipment according to the international mobile subscriber identity ISMI of the called user in the first call request information, when it is determined that the called user equipment is in the international roaming state and the roaming communication service has been opened, the first call request is sent to the border SBC, so that the border SBC pages the called user equipment through the VoIP network. The above-mentioned communication method realizes the voice communication connection between the roaming user and the user of the domestic telecommunication network in VoIP mode.

Fig. 4 is a schematic flowchart of a communication method for an international roaming voice service provided by another embodiment of the present invention. The method provided in this embodiment can be executed by any communication device that implements the international roaming voice service, and the communication device can be implemented by software and/or hardware.

In this embodiment, the communication device may be SBC1 of the domestic telecommunication network shown in FIG. 2 . As shown in Figure 4, the communication method provided by this embodiment includes the following steps:

S201. Receive a first call request sent by a calling user equipment, where the first call request is a call request based on No.7 signaling protocol.

Specifically, the border SBC of the domestic telecommunications network receives the first call request sent by the calling user equipment forwarded by the mobility management entity MME.

In this embodiment, the border SBC may receive the first call request forwarded by the MME only when the called user in the first call request is currently in an international roaming state and the called user has subscribed to the roaming communication service in advance. That is to say, if the called user in the first call request is currently in the international roaming state, but the called user has not subscribed to the roaming communication service, the called user cannot be called. The roaming communication service in this embodiment is different from the roaming communication service in the prior art. For details, reference may be made to the foregoing embodiments, which will not be repeated here.

S202. Paging the called user equipment through the VoIP network. The called user equipment is in an international roaming state and has opened a roaming communication service.

Specifically, after receiving the first call request sent by the calling user equipment forwarded by the MME, the border SBC can page the called user equipment in the roaming state through the following steps:

Step 1. Convert the first call request into a second call request based on the SIP protocol.

The border SBC in this embodiment has a protocol conversion function, which can convert the No.7 protocol of the domestic telecommunication network to the SIP protocol of the foreign VoIP network.

The border SBC of this embodiment corresponds to SBC1 shown in FIG. 2 .

Step 2. Forward the second call request to the inbound SBC where the called user equipment visits, so that the inbound SBC pages the called user equipment through the SIP gateway.

The port-entry SBC of this embodiment receives the second call request based on the SIP protocol through the international Internet network, and forwards the second call request to the SIP gateway where the called user equipment is located, thereby realizing that the called user communicates with domestic telecommunications in the form of VoIP abroad. Voice communication of network calling users.

The inbound SBC of this embodiment corresponds to SBC2 shown in FIG. 2 .

In the communication method provided by the embodiment of the present invention, by receiving the first call request including the International Mobile Subscriber Identity ISMI of the called user sent by the calling user equipment, the first call request is a call request based on the No.7 signaling protocol, After the protocol conversion, the called user equipment which is in the international roaming state and has opened the roaming communication service is paged through the VoIP network. The above-mentioned communication method realizes the voice communication connection between the roaming user and the user of the domestic telecommunication network in VoIP mode.

FIG. 5 is an interactive schematic diagram of a communication method for an international roaming voice service provided by an embodiment of the present invention. As shown in Figure 5, the communication method provided by this embodiment includes the following steps:

S301. The calling user equipment sends a first call request to the MME through the base station, where the first call request includes the International Mobile Subscriber Identity ISMI of the called user;

S302. When the MME determines that the called user equipment is in the international roaming state and has activated the roaming communication service, forward the first call request to the border SBC;

S303. The border SBC converts the first call request into a second call request based on the SIP protocol;

S304. The border SBC forwards the second call request to the inbound SBC where the called user equipment is located;

S305. The inbound SBC forwards the second call request to the SIP gateway where the called user equipment is located;

S306. Establish voice communication.

The above-mentioned interaction process is the same as the embodiment shown in FIG. 3 and FIG. 4 , for details, refer to the above-mentioned embodiment, and details are not repeated here. Through the interactive mode provided by this embodiment, the voice communication connection between the roaming user and the domestic telecommunication network user is realized in VoIP mode.

FIG. 6 is a schematic functional structure diagram of a communication device for an international roaming voice service provided by an embodiment of the present invention. As shown in Figure 6, the communication device provided in this embodiment includes:

The receiving module 41 is configured to receive a first call request sent by the calling user equipment, where the first call request includes the International Mobile Subscriber Identity ISMI of the called user;

The sending module 42 is configured to send the first call request to the border SBC when it is determined that the called user equipment is in an international roaming state and has opened a roaming communication service, so that the border SBC can page the called user equipment through the VoIP network. called user equipment.

Optionally, the communication device further includes: a determining module 43;

The determination module 43 is used for:

determining the HSS to which the called user equipment belongs according to the ISMI of the called user;

According to the record information of the HSS to which the called user equipment belongs, it is determined whether the called user equipment is in an international roaming state and whether a roaming communication service is activated.

Optionally, the receiving module 41 is specifically used for:

The first call request sent by the calling user equipment based on the No.7 signaling protocol is received.

The communication device provided in this embodiment can implement the technical solution of the method embodiment shown in FIG. 3 , and its implementation principle and technical effect are similar, and will not be repeated here.

Fig. 7 is a schematic functional structure diagram of a communication device for an international roaming voice service provided by another embodiment of the present invention. As shown in Figure 7, the communication device provided in this embodiment includes:

The receiving module 51 is configured to receive a first call request sent by the calling user equipment, where the first call request is a call request based on the No.7 signaling protocol;

The paging module 52 is configured to page the called user equipment through the VoIP network, and the called user equipment is in an international roaming state and has opened a roaming communication service.

Optionally, the paging module 52 is specifically used for:

converting the first call request into a second call request based on the SIP protocol;

forwarding the second call request to the inbound SBC where the called user equipment visits, so that the inbound SBC pages the called user equipment through the SIP gateway.

Optionally, the receiving module 51 is specifically used for:

The first call request sent by the calling user equipment and forwarded by the mobility management entity MME is received.

The communication device provided in this embodiment can execute the technical solution of the method embodiment shown in FIG. 4 , and its implementation principle and technical effect are similar, and details are not repeated here.

Fig. 8 is a hardware structural diagram of a communication device for an international roaming voice service provided by an embodiment of the present invention. As shown in Fig. 8, the communication device 60 provided in this embodiment includes:

memory 61;

processor 62; and

Computer program;

Wherein, the computer program is stored in the memory 61 and is configured to be executed by the processor 62 to implement the technical solution of the method embodiment shown in FIG. 3 above. The implementation principles and technical effects are similar and will not be repeated here.

Optionally, the memory 61 can be independent or integrated with the processor 62 .

When the memory 61 is a device independent of the processor 62 , the communication device 60 further includes: a bus 63 for connecting the memory 61 and the processor 62 .

FIG. 9 is a hardware structural diagram of a communication device for an international roaming voice service provided by another embodiment of the present invention. As shown in FIG. 9, the communication device 70 provided in this embodiment includes:

memory 71;

processor 72; and

Computer program;

Wherein, the computer program is stored in the memory 71 and is configured to be executed by the processor 72 to implement the technical solution of the method embodiment shown in FIG. 4 above. The implementation principles and technical effects are similar and will not be repeated here.

Optionally, the memory 71 can be independent or integrated with the processor 72 .

When the memory 71 is a device independent of the processor 72 , the communication device 70 further includes: a bus 73 for connecting the memory 71 and the processor 72 .

The embodiment of the present invention also provides a computer-readable storage medium, on which a computer program is stored, and the computer program is executed by the processor 62 to implement the various steps performed by the communication device 60 in the above method embodiment.

The embodiment of the present invention also provides a computer-readable storage medium, on which a computer program is stored, and the computer program is executed by the processor 72 to implement various steps performed by the communication device 70 in the above method embodiment.

In the several embodiments provided by the present invention, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of modules is only a logical function division. In actual implementation, there may be other division methods. For example, multiple modules can be combined or integrated into another A system, or some feature, can be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or modules may be in electrical, mechanical or other forms.

A module described as a separate component may or may not be physically separated, and a component shown as a module may or may not be a physical unit, that is, it may be located in one place, or may also be distributed to multiple network units. Part or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional module in each embodiment of the present invention may be integrated into one processing unit, or each module may physically exist separately, or two or more modules may be integrated into one unit. The units formed by the above modules can be implemented in the form of hardware, or in the form of hardware plus software functional units.

The above-mentioned integrated modules implemented in the form of software function modules can be stored in a computer-readable storage medium. The above-mentioned software function modules are stored in a storage medium, and include several instructions to enable a computer device (which may be a personal computer, server, or network device, etc.) or a processor (English: processor) to execute the methods of the various embodiments of the present application. partial steps.

It should be understood that the above-mentioned processor can be a central processing unit (English: Central Processing Unit, referred to as: CPU), and can also be other general-purpose processors, digital signal processors (English: Digital Signal Processor, referred to as: DSP), application-specific integrated circuits (English: Application Specific Integrated Circuit, referred to as: ASIC) and so on. A general-purpose processor may be a microprocessor, or the processor may be any conventional processor, or the like. The steps of the method disclosed in conjunction with the invention can be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules in the processor.

The storage may include a high-speed RAM memory, and may also include a non-volatile storage NVM, such as at least one disk storage, and may also be a U disk, a mobile hard disk, a read-only memory, a magnetic disk, or an optical disk.

The bus may be an Industry Standard Architecture (Industry Standard Architecture, ISA) bus, a Peripheral Component Interconnect (Peripheral Component, PCI) bus, or an Extended Industry Standard Architecture (Extended Industry Standard Architecture, EISA) bus, etc. The bus can be divided into address bus, data bus, control bus and so on. For ease of representation, the buses in the drawings of the present application are not limited to only one bus or one type of bus.

The above-mentioned storage medium can be realized by any type of volatile or non-volatile storage device or their combination, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable In addition to programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.

An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be a component of the processor. The processor and the storage medium may be located in application specific integrated circuits (Application Specific Integrated Circuits, ASIC for short). Of course, the processor and the storage medium can also exist in the electronic device or the main control device as discrete components.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the various embodiments of the present invention. scope.

Claims (12)

1. a kind of communication means of international roaming voice service characterized by comprising

The first call request that calling subscriber equipment is sent is received, first call request includes that the world of called subscriber is mobile Customer identification number ISMI；

When determining that called subscriber equipment is in international roaming state and has opened roaming communication business, first calling is asked It asks and is sent to boundary SBC, so that the boundary SBC pages the called subscriber equipment by voip network.

2. the method according to claim 1, wherein the determining called subscriber equipment is in international roaming state And open roaming communication business, comprising:

The HSS of the called subscriber equipment ownership is determined according to the ISMI of the called subscriber；

According to the record information of the HSS of called subscriber equipment ownership, determine whether the called subscriber equipment is in international Roaming state and whether open roaming communication business.

3. the method according to claim 1, wherein first calling for receiving calling subscriber equipment transmission is asked It asks, comprising:

Receive the first call request that calling subscriber equipment is sent based on No.7 signaling protocol.

4. a kind of communication means of international roaming voice service characterized by comprising

The first call request that calling subscriber equipment is sent is received, first call request is exhaling based on No.7 signaling protocol Cry request；

By voip network calling called subscriber equipment, the called subscriber equipment is in international roaming state and has opened roaming Communication service.

5. according to the method described in claim 4, it is characterized in that, described pass through voip network calling called subscriber equipment, packet It includes:

First call request is converted to the second call request based on Session Initiation Protocol；

The SBC that enters a port second call request being forwarded to where the called subscriber equipment access, so that described enter a port SBC pages the called subscriber equipment by SIP gateway.

6. according to the method described in claim 4, it is characterized in that, first calling for receiving calling subscriber equipment transmission is asked It asks, comprising:

Receive the first call request that the calling subscriber equipment of mobile management entity MME forwarding is sent.

7. a kind of communication device of international roaming voice service characterized by comprising

Receiving module, for receiving the first call request of calling subscriber equipment transmission, first call request includes called The international mobile subscriber identifier ISMI of user；

Sending module, for inciting somebody to action when determining that called subscriber equipment is in international roaming state and has opened roaming communication business First call request is sent to boundary SBC, sets so that the boundary SBC pages the called subscriber by voip network It is standby.

8. a kind of communication device of international roaming voice service characterized by comprising

Receiving module, for receiving the first call request of calling subscriber equipment transmission, first call request includes called The international mobile subscriber identifier ISMI of user；

Module is paged, for by voip network calling called subscriber equipment, the called subscriber equipment to be in international roaming shape State and roaming communication business is opened.

9. a kind of communication device of international roaming voice service characterized by comprising

Memory；

Processor；And

Computer program；

Wherein, the computer program stores in the memory, and is configured as being executed by the processor to realize such as The described in any item methods of claims 1 to 3.

10. a kind of communication device of international roaming voice service characterized by comprising

Memory；

Processor；And

Computer program；

Wherein, the computer program stores in the memory, and is configured as being executed by the processor to realize such as The described in any item methods of claim 4 to 6.

11. a kind of computer readable storage medium, which is characterized in that be stored thereon with computer program, the computer program It is executed by processor to realize method as described in any one of claims 1 to 3.

12. a kind of computer readable storage medium, which is characterized in that be stored thereon with computer program, the computer program It is executed by processor to realize such as the described in any item methods of claim 4 to 6.