WO2018095079A1

WO2018095079A1 - Method and apparatus for switching voice service, mobile terminal and computer storage medium

Info

Publication number: WO2018095079A1
Application number: PCT/CN2017/097506
Authority: WO
Inventors: 何迎娟
Original assignee: 中兴通讯股份有限公司
Priority date: 2016-11-25
Filing date: 2017-08-15
Publication date: 2018-05-31
Also published as: CN108112015B; CN108112015A

Abstract

The present disclosure relates to a method and apparatus for switching a voice service, a mobile terminal and a computer storage medium, the method for switching a voice service comprising: acquiring voice quality information of a terminal when the terminal carries out wireless calling in a wireless call mode of a first network, as well as cell information of a second network in an area where the terminal is located; when the voice quality information is less than a preset value, switching from the wireless call mode of the first network to voice calling by means of a cell of the second network according to the cell information of the second network. In the embodiments of the present disclosure, smooth and seamless switching may be carried out by means of obtaining voice quality information and, in a preset condition, switching from wireless calling carried out in a wireless call mode to voice calling, thereby improving user experience.

Description

Method and device for switching voice service, and mobile terminal and computer storage medium

Technical field

The present disclosure relates to the field of communications technologies, and in particular, to a method and device for switching voice services, and a mobile terminal and a computer storage medium.

Background technique

With the development of communication technology, it has become a reality to make wireless calls in the wireless call mode, that is, WiFi Calling, which has received great attention in recent years, but the quality of the call when the wireless call is made in the wireless call mode is affected by the wireless signal strength, etc. The effect, especially when the user uses the wireless call mode to make a wireless call while moving, it is very likely that the quality of the call is degraded due to the weakening of the wireless signal, and even the call is interrupted, which makes the use of the wireless call in the wireless call mode. Getting smaller also reduces the user experience.

Summary of the invention

The embodiments of the present disclosure provide a method and a device for switching a voice service, and a mobile terminal and a computer storage medium, which are used to implement seamless handover between a wireless call and a voice call.

An embodiment of the present disclosure provides a method for switching a voice service, where the method includes:

Obtaining voice quality information when the terminal performs a wireless call in the wireless call mode of the first network, and cell information of the second network in the area where the terminal is located;

And when the voice quality information is lower than a preset value, according to the cell information of the second network, switching from a wireless call mode of the first network to a voice call by a cell of the second network.

The step of obtaining voice quality information when the terminal performs a wireless call in the wireless call mode of the first network includes:

The terminal accesses the first network through the wireless access point AP to enter a wireless call mode;

Authenticate the wireless access point AP;

After the authentication is passed, the voice quality information during the wireless call is obtained.

The step of authenticating the wireless access point AP includes:

Performing bidirectional authentication on the wireless access point AP and the first wireless access point AP that will perform data interaction with the wireless access point AP;

After the authentication succeeds, the wireless access point AP performs data exchange with the first wireless access point AP;

Obtaining an update time of the first wireless access point AP by using the data after the data exchange;

And saving the data information of the first wireless access point AP when the update time meets the first preset condition.

The step of acquiring the cell information of the second network in the area where the terminal is located includes:

Obtaining network side information after successful network registration and cell information of the second network.

When the voice quality information is lower than a preset value, according to the cell information of the second network, the step of switching from the wireless call mode of the first network to the voice call by the cell of the second network includes: :

When the second preset condition is met, controlling the wireless call mode of the first network to switch to a voice call through the cell of the second network by using a first preset mechanism;

When the second preset condition is not met, controlling the wireless call mode of the first network to switch to a voice call through the cell of the second network by using a second preset mechanism.

The embodiment of the present disclosure further provides a switching device for a voice service, including:

a first acquiring module, configured to acquire voice quality information when the terminal performs a wireless call in a wireless call mode of the first network, and cell information of the second network in an area where the terminal is located;

a switching module, configured to switch from a wireless call mode of the first network to a cell that is used by the second network according to cell information of the second network when the voice quality information is lower than a preset value Voice calls.

The first acquiring module is configured to obtain voice quality information when the terminal performs a wireless call in a wireless call mode of the first network, and the terminal accesses the first network to enter a wireless call mode by using the wireless access point AP, where the An acquisition module includes:

An authentication module, configured to authenticate the wireless access point AP;

The second obtaining module is configured to obtain voice quality information during the wireless call after the authentication is passed.

The authentication module is configured to perform authentication on the wireless access point AP,

The authentication module is further configured to perform bidirectional authentication on the wireless access point AP and a first wireless access point AP that will perform data interaction with the wireless access point AP;

After the authentication succeeds, controlling, by the wireless access point AP, data exchange with the first wireless access point AP;

The switching device further includes a storage module, configured to obtain, by using the data exchanged data, an update time of the first wireless access point AP;

When the update time meets the first preset condition, the storage module saves the data information of the first wireless access point AP.

The first acquiring module is configured to acquire cell information of a second network in an area where the terminal is located,

The first acquiring module is configured to obtain network side information after successful network registration and cell information of the second network.

The switching module is configured to switch from a wireless call mode of the first network to a second network by using the cell information of the second network when the voice quality information is lower than a preset value. When the cell makes a voice call,

The switching module is further configured to: when the second preset condition is met, control the wireless call mode of the first network to switch to a voice call through a cell of the second network by using a first preset mechanism;

The embodiment of the present disclosure further provides a mobile terminal, including the switching device of the voice service as described above.

Embodiments of the present disclosure also provide a computer storage medium having stored therein one or more programs executable by a computer, the one or more programs being executed by the computer to cause the computer to perform as described above A method of switching voice services provided.

Compared with the prior art, a method and a device for switching a voice service, and a mobile terminal and a computer storage medium provided by the embodiments of the present disclosure have at least the following beneficial effects: in the embodiment of the present disclosure, by acquiring voice quality information, By switching the wireless call in the wireless call mode to the voice call under the preset condition, smooth and seamless switching can be realized, and the user experience is improved.

DRAWINGS

FIG. 1 is a flowchart of a method for switching a voice service according to an embodiment of the present disclosure;

2 is a flowchart of acquiring voice quality information according to an embodiment of the present disclosure;

FIG. 3 is a flowchart of performing authentication on a wireless access point AP according to an embodiment of the present disclosure;

4 is a flowchart of switching from a wireless call to a voice call according to an embodiment of the present disclosure;

FIG. 5 is a schematic structural diagram of a device for switching a voice service according to an embodiment of the present disclosure.

detailed description

The technical problems, the technical solutions, and the advantages of the present invention will be more clearly described in conjunction with the accompanying drawings and specific embodiments. In the following description, specific details such as specific configurations and components are provided only to assist in a comprehensive understanding of the embodiments of the present disclosure. It will be apparent to those skilled in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the disclosure. In addition, descriptions of well-known functions and constructions are omitted for clarity and conciseness.

Referring to FIG. 1 , an embodiment of the present disclosure provides a method for switching a voice service, where the method includes:

Step 101: Acquire voice quality information when the terminal performs a wireless call in the wireless call mode of the first network, and cell information of the second network in the area where the terminal is located;

Step 102: When the voice quality information is lower than a preset value, switch from a wireless call mode of the first network to a voice call by a cell of the second network according to cell information of the second network. .

The preset value may be set according to the pre-test result. The method for switching the voice service according to the embodiment of the present disclosure may enable the wireless call when the user is from a wireless network environment to an environment without a wireless network environment or a poor wireless network. Without interruption, it will adaptively switch to voice call, that is, the wireless call from the wireless network switches to the voice call of the voice network, especially the 2G/3G voice service network with a wide coverage, realizing a seamless seamless handover network. Technology to provide users with better calling services and experiences. When you need to pay attention, wireless calls in wireless call mode include WiFi Calling.

Referring to FIG. 2, in the method for switching a voice service according to an embodiment of the present disclosure, the step of acquiring voice quality information when a terminal performs a wireless call in a wireless call mode of the first network includes:

Step 201: The terminal accesses the first network through the wireless access point AP to enter a wireless call mode.

Step 202: Perform authentication on the wireless access point AP.

Step 203: After the authentication is passed, obtain voice quality information during the wireless call.

This embodiment defines the acquisition of voice quality information on the basis of the previous embodiment. In the method for switching the voice service according to the embodiment of the present disclosure, when the wireless access point AP accesses the first network to enter the wireless call mode, the location information needs to be reported to the ANDSF (access network discovery and selection function). At the same time, in order to ensure user data security and information security, the steps of authenticating the wireless access point AP are added, and other steps are performed after the authentication is passed, thereby ensuring the security of the user data in the wireless network environment.

Referring to FIG. 3, in the method for switching a voice service according to an embodiment of the present disclosure, the step of authenticating a wireless access point AP includes:

Step 301: Performing data interaction between the wireless access point AP and the wireless access point AP A wireless access point AP performs mutual authentication;

Step 302: After the authentication succeeds, the wireless access point AP performs data exchange with the first wireless access point AP.

Step 303: Obtain an update time of the first wireless access point AP by using the data after data exchange.

Step 304: When the update time meets the first preset condition, save the data information of the first wireless access point AP.

This embodiment defines the step of authenticating the wireless access point AP based on the previous embodiment. In the method for switching the voice service according to the embodiment of the present disclosure, the wireless access point AP and the first wireless access point AP that performs data exchange with the wireless access point AP are mutually authenticated to implement the first wireless connection. Confirmation of the legality of the ingress AP, and then confirm the data interaction. At the same time, after the data is exchanged, the update time of the data is also checked by the time stamp of the MAC address. If the latest time is after the exchange (that is, the first preset condition is met), then step 304 is performed to save the first wireless. The data information of the AP of the access point; if the time after the interaction is not the latest time, the discarding process is performed, and the information exchange process is terminated to ensure the security of the user data.

For the two-way authentication, the present disclosure provides a preferred embodiment. For the sake of brevity of description, the following describes the wireless access point AP as AP1, and the first wireless access that performs data exchange with the wireless access point AP. The point AP is represented as AP2, and the service distinguishing number ESSID (ESSID) is used as an example, and the service difference number ESSID where the wireless access point AP is located is represented as ESSID1, and the service of the first wireless access point AP is located. The difference number ESSID is represented as ESSID2.

1. When AP1 enters ESSID1, ESSID1 pre-authenticates AP1.

1) AP1 first starts mobile registration. In order to protect the registration message, AP1 performs a hash update message (HMAC, Hash-based Message) for binding update message (RBU) and intra-domain binding update message (LBU) across the ESSID information. Authentication Code) protection and C-HIBS signature;

2) AP1 starts to verify Cert_ESSID1: {Cert_ESSID1} Hess-IBS_Verify_AP1, if successful, AP1 extracts IDESSID1 and Q value set (QMAP, QAR) from Cert_ESSID1;

2. AP1→ESSID1: [RBU, LBU, TS1, (RBU) MAC=HMAC (KAP1-HA, RBU, TS1), σ

1={LBU,TS1}C-HIBS_Sign_AP1,Cert_AP1]:

ESSID1 first checks the freshness of TS1, and then checks the certificate list (CL). Since AP1 first accesses ESSID1, there is no Cert_AP1 information in CL; ESSID1 sends to ESSID manager (EM) Certificate Authentication Request Message (CVR), requesting authentication of Cert_AP1;

3. ESSID1~EM1: [CVR, RBU, (RBU) MAC, TS1, LBU, Cert_AP1]:

1) EM1 verification

{_}Cert AP1Cert AP1Hess IBS Verify MAP, if successful, EM1 checks the node type of AP1, and if it is a mobile node, temporarily updates the binding cache according to the LBU;

2) EM1 sends a certificate authentication confirmation message (CVA) and an intra-domain binding confirmation message (LBA) to ESSID1;

3) EM1 forwards the RBU of AP1 to the HA;

4. EM1~ESSID1: [CVA, LBA]:

1) After receiving the CVA, ESSID1 extracts IDAP1 and Q value sets (QHA, QAP1) from Cert_AP1, and authenticates AP1 {LBU, TS1, 1} C-HIBS_Verify_ESSID1. If successful, sending an authentication success message (VA) to the MAP to notify the authentication result;

2) ESSID1 signs the LBA and sends it to AP1;

5, b EM1 → HA: [RBU, (RBU) MAC, TS1]: HA checks the freshness of TS1 and performs HMA certificate on RBU: {RBU, (RBU) MAC, TS1} HMAC_Verify_HA, if successful, update the binding Cache, returning RBA to AP1;

6, a ESSID1 ~ EM1: [VA]:

After receiving the VA, EM1 officially updates the binding cache, and sends a certificate list update message (CLU) to all ARs in the domain to notify the successful authentication of AP1. The CLU message carries Cert_AP1.

7, b HA → EM1: [RBA, (RBA) MAC = HMAC (KAP1-HA, RBA, TS2), TS2]:

EM1 forwards the RBA to ESSID1;

8, c ESSID1 → AP1: [LBA, TS3, 2 {LBA, TS3} C-HIBS_Sign_ESSID1] σ =: AP1, first check the freshness of TS3, and then use the obtained IDESSID1 and Q value set to recognize ESSID1 {LBA, TS3, σ2} C-HIBS_Verify_AP1.

If successful, complete the two-way access authentication;

9, a EM1 ~ ESSID1: [RBA, (RBA) MAC, TS2, CLU]:

ESSID1 forwards the RBA to AP1 and updates CL to add the Cert_AP1 entry.

10, b EM1 ~ AR2: [CLU]: AR2 update CL, increase the Cert_AP1 entry;

ESSID1→AP1:[RBA,(RBA)MAC,TS2]: AP1 checks the time of TS2 and performs HMAC authentication on RBA: {RBA, (RBA) MAC, TS2}HMAC_Verify_AP1, if successful, completes.

In the method for switching the voice service of the embodiment of the present disclosure, the step of acquiring the cell information of the second network in the area where the terminal is located includes:

In the method for switching the voice service of the embodiment of the present disclosure, the terminal may obtain surrounding cell information, that is, cell information of the second network, by using a SIM/USIM card (Subscriber Identification Module).

Referring to FIG. 4, in a method for switching a voice service according to an embodiment of the present disclosure, when the voice quality information is lower than a preset value, a wireless call from the first network is performed according to cell information of the second network. The step of mode switching to a voice call through a cell of the second network includes:

Step 401: When the second preset condition is met, controlling the wireless call mode of the first network to switch to a voice call through a cell of the second network by using a first preset mechanism;

Step 402: When the second preset condition is not met, controlling the wireless call mode of the first network to switch to a voice call through a cell of the second network by using a second preset mechanism.

The method for switching a voice service according to an embodiment of the present disclosure provides two switching mechanisms, that is, switching a wireless call to a voice call of a 2G/3G voice service and switching the wireless call according to a current IMS (IP Multimedia Subsystem IP Multimedia Subsystem). The mechanism performs network switching. Since IMS is only applicable to LTE networks (as the development of communication technologies, 5G and subsequent networks may also be applicable), the second preset condition is that when there is no LTE network around, only 2G/3G networks are available. And controlling, by the first preset mechanism, the wireless call mode of the first network to perform a voice call by using a cell of the second network. The first preset mechanism includes: acquiring local network information and a home server address of the other party, and backing up a CS (Circuit Switched) domain related parameter of the other party, and when the second preset condition is met, controlling the The wireless call mode of the first network is switched to a voice call through the cell of the second network by using a first preset mechanism. The first preset mechanism includes an IMS switching mechanism.

Referring to FIG. 5, an embodiment of the present disclosure further provides a switching apparatus for a voice service, including:

The first acquiring module 1 is configured to acquire voice quality information when the terminal performs a wireless call in a wireless call mode of the first network, and cell information of the second network in the area where the terminal is located;

The switching module 2 is configured to switch from the wireless call mode of the first network to the cell that passes the second network according to the cell information of the second network when the voice quality information is lower than a preset value. Make a voice call.

The first obtaining module 1 is configured to acquire voice quality information when the terminal performs a wireless call in a wireless call mode of the first network, and the terminal accesses the first network to enter a wireless call mode by using the wireless access point AP, The first obtaining module 1 includes:

The switching module 2 is configured to switch from the wireless call mode of the first network to the second network according to the cell information of the second network when the voice quality information is lower than a preset value. The cell is in a voice call,

The switching module 2 is further configured to: when the second preset condition is met, control the wireless call mode of the first network to switch to a voice call through a cell of the second network by using a first preset mechanism;

In the switching device of the voice service of the embodiment of the present disclosure, the switching device further includes:

a local database module, configured to store the finally obtained cellular information;

Wireless management (WiFimanager) module for mainly managing and accessing network databases;

a data interaction module, configured to perform cell information interaction and information confirmation, query a local database, or synchronize a local database with the wireless management module;

a database polling module, configured to confirm, according to the time of the MAC address of the WiFi stored by the local database module, whether to update the data information of the local database;

The WiFi measurement module is configured to report the coverage information of the surrounding cell information to the UE or the network side of the wireless call according to the data stored in the local database; and when the WiFi is not connected to the network or the WiFi is disconnected, switch to the surrounding 2G/3G network in time;

The voice call module and the network monitoring module are used to enable the real-time monitoring function when using the wireless call, and mainly monitor the network status of the WiFi and the WiFi connection status, and switch to the cell transmitted by the WiFi measurement module in real time to ensure that the voice service does not have LTE. Voice calls in the network but with 2G/3G network coverage are not interrupted.

a cell information module, configured to obtain related network information from a device application layer;

A Content providers tunnel that provides an interface for the wireless management module to invoke network-side data.

The wireless management device in the prior art cannot obtain the cell information, and the device in the embodiment of the present disclosure provides the following solution. In the switching device of the voice service according to the embodiment of the present disclosure, the network side information and the surrounding cell information after the network registration is successful are obtained by using the SIM/USIM card, and the network database stores the network side data, and the wireless management module passes the content through the Content providers tunnel. The interface invokes network side data to obtain cell information. At the same time, the data interaction module and the wireless management module perform cell information interaction and information confirmation, and the module can also query the local database or synchronize the local database information.

In the switching device of the voice service according to the embodiment of the present disclosure, the AP obtains the cellular cell data information registered by the SIM card by using the following method: first, adding access rights in the underlying code of the device; for example, adding Content in the mainfest file of the android Readers and wifi manager read access; AP can access the Internet; wireless management module manages and accesses air interface related data; accesses the network database through the API interface provided by Content providers, ensuring the security of user data and preventing illegal users from stealing user data; The database rotation training module mainly confirms whether to update the data information of the local database according to the time of the WiFi MAC address in the database; if necessary, it is updated and stored in the local database; if not, according to the updated network time, polling is performed again. The wireless management module acquires network side data.

When the switching module 2 meets the second preset condition, the wireless call mode of the first network is controlled to be switched to the voice through the cell of the second network by using the first preset mechanism, and the voice call can be further refined. The switching device of the voice service of the embodiment of the present disclosure further includes a pre-processing module (the pre-processing module includes: sensing user service and user network module, sensing user service and user behavior module, analyzing wireless call quality) The quantity module) and the wireless call monitoring module; the wireless call monitoring module monitors the wireless call and the network information reported to the local machine, and the home server address of the other party, and provides the voice load monitoring module, and after receiving the information, the voice load monitoring module according to the current Call quality information to confirm whether backup parameters and pre-operation processing are required, query the cell information of the 2G/3G network in the environment of the wifi measurement module again, back up the CS domain related parameters of the other party, analyze the call quality of the current wireless call, and judge The critical value of the call quality, if it is at the critical value, then the pre-processing module performs the pre-switching query and scheduling work, and if it meets the value of the voice call quality, it returns to the wireless call monitoring step.

Each module or unit in the switching device of the above voice service may be through one or more digital signal processors (DSPs), application specific integrated circuits (ASICs), processors, microprocessors, controllers, microcontrollers, and field programmable Arrays (FPGAs), programmable logic devices, or other electronic units, or any combination thereof, are implemented. Some of the functions or processes described in this application embodiment may also be implemented by software executing on a processor.

For example, the embodiment of the present disclosure further provides a voice service switching apparatus, for example, the apparatus can be applied to a mobile terminal, including:

processor;

a memory for storing processor executable instructions;

The processor is configured to perform the voice service switching method described above.

The memory in the embodiments of the present disclosure may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory may be a read-only memory (ROM), a programmable read only memory (PROM), an erasable programmable read only memory (Erasable PROM, EPROM), or an electric Erase programmable read only memory (EEPROM) or flash memory. The volatile memory can be a Random Access Memory (RAM) that acts as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (Synchronous DRAM, SDRAM). Double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronously connected dynamic random access memory (Synchlink DRAM, SLDRAM) and Direct Memory Bus Random Access Memory (DRRAM). In summary, in an embodiment of the present disclosure, by acquiring voice quality information, By default, the wireless call made in the wireless call mode is switched to the voice call, which can realize smooth and seamless switching and improve the user experience.

The above is a preferred embodiment of the present disclosure, and it should be noted that those skilled in the art can also make several improvements and refinements without departing from the principles of the present disclosure. It should also be considered as the scope of protection of the present disclosure.

Industrial applicability

The solution provided by the embodiments of the present disclosure can be applied to the field of communication technologies. The method and device for switching voice services provided by the embodiments of the present disclosure, and the mobile terminal and the computer storage medium, by acquiring the voice quality information, switch the wireless call in the wireless call mode to the voice call in a preset situation. , smooth and seamless switching can be achieved to improve the user experience.

Claims

A method for switching a voice service, where the method includes:

Obtaining voice quality information when the terminal performs a wireless call in the wireless call mode of the first network, and cell information of the second network in the area where the terminal is located;

And when the voice quality information is lower than a preset value, according to the cell information of the second network, switching from a wireless call mode of the first network to a voice call by a cell of the second network.
The method for switching voice services according to claim 1, wherein the step of acquiring voice quality information when the terminal performs a wireless call in the wireless call mode of the first network comprises:

The terminal accesses the first network through the wireless access point AP to enter a wireless call mode;

Authenticate the wireless access point AP;

After the authentication is passed, the voice quality information during the wireless call is obtained.
The method for switching a voice service according to claim 2, wherein the step of authenticating the wireless access point AP comprises:

Performing bidirectional authentication on the wireless access point AP and the first wireless access point AP that will perform data interaction with the wireless access point AP;

After the authentication succeeds, the wireless access point AP performs data exchange with the first wireless access point AP;

Obtaining an update time of the first wireless access point AP by using the data after the data exchange;

And saving the data information of the first wireless access point AP when the update time meets the first preset condition.
The method for switching voice services according to claim 1, wherein the step of acquiring cell information of the second network in the area where the terminal is located includes:

Obtaining network side information after successful network registration and cell information of the second network.
The method for switching a voice service according to claim 1, wherein, when the voice quality information is lower than a preset value, switching from a wireless call mode of the first network according to cell information of the second network The step of performing a voice call to the cell passing through the second network includes:

When the second preset condition is met, controlling the wireless call mode of the first network to switch to a voice call through the cell of the second network by using a first preset mechanism;

Controlling the wireless call mode of the first network through the second preset machine when the second preset condition is not met Switching to a voice call through a cell of the second network.
A switching device for a voice service, comprising:

a first acquiring module, configured to acquire voice quality information when the terminal performs a wireless call in a wireless call mode of the first network, and cell information of a second network in an area where the terminal is located;

The switching module is configured to, when the voice quality information is lower than a preset value, switch from the wireless call mode of the first network to the cell that passes the second network according to the cell information of the second network Voice calls.
The apparatus for switching voice services according to claim 6, wherein the first obtaining module is configured to acquire voice quality information when the terminal performs a wireless call in a wireless call mode of the first network, and the terminal accesses the wireless The point AP accesses the first network to enter the wireless call mode, and the first acquiring module includes:

An authentication module configured to authenticate the wireless access point AP;

The second obtaining module is configured to obtain voice quality information when the wireless call is obtained after the authentication is passed.
The apparatus for switching voice services according to claim 7, wherein the authentication module is configured to authenticate the wireless access point AP,

The authentication module is further configured to perform mutual authentication on the wireless access point AP and the first wireless access point AP that will perform data interaction with the wireless access point AP;

After the authentication succeeds, controlling, by the wireless access point AP, data exchange with the first wireless access point AP;

The switching device further includes a storage module, configured to obtain an update time of the first wireless access point AP by using the data after the data exchange;

When the update time meets the first preset condition, the storage module saves the data information of the first wireless access point AP.
The apparatus for switching voice services according to claim 6, wherein the first obtaining module is configured to acquire cell information of a second network in an area where the terminal is located,

The first acquiring module is configured to acquire network side information after successful network registration and cell information of the second network.
The switching device of the voice service according to claim 6, wherein the switching module is configured to: according to the cell information of the second network, when the voice quality information is lower than a preset value, Switching to a wireless call mode of a network to perform a voice call through a cell of the second network,

The switching module is further configured to: when the second preset condition is met, control the wireless call mode of the first network to switch to a voice call through a cell of the second network by using a first preset mechanism;

When the second preset condition is not met, controlling the wireless call mode of the first network to switch to a voice call through the cell of the second network by using a second preset mechanism.
A mobile terminal comprising the switching device for voice services according to any one of claims 6 to 10.
A computer storage medium having stored therein one or more programs executable by a computer, the one or more programs being executed by the computer to cause the computer to perform as in claims 1-5 A method for switching a voice service according to any one of the preceding claims.