CN112637798B - Call method and terminal - Google Patents

Abstract

The embodiment of the application provides a call method and a terminal, wherein the method comprises the following steps: when a first voice call with a call target of a first SIM card is connected, the first terminal receives and prompts a second voice call with another call target of the first SIM card; the second voice call is sent to the first terminal after the network equipment transfers the voice call of the second terminal to the second SIM card to the first SIM card based on a call transfer request from the first terminal, wherein the call transfer request comprises identification information of the first SIM card; the call transfer request is sent to the network equipment after the first terminal receives the voice call of the second terminal to the second SIM card after the first terminal receives the first voice call. The switching between two paths of calls can be realized on the double-card double-standby terminal, and the scheme can be applied to the field of artificial intelligence.

Description

Call method and terminal

technical field

The embodiments of the present application relate to the communication field, and in particular, to a calling method and terminal.

Background technique

In the dual-card dual-standby terminal in the prior art, when the terminal connects to the voice call of the Subscriber Identity Module (Subscriber Identity Module, SIM) card 1, the terminal can also receive the voice call of the SIM card 2 (that is, the other terminal calls to the SIM card 2 calls). However, in the current dual-card dual-standby terminal, when the voice call of SIM card 1 is connected and the voice call of SIM card 2 is received, if the incoming call of SIM card 2 is selected, the call of SIM card 1 will be Hang up; if you choose to continue answering the voice call of SIM card 1, the voice call of SIM card 2 will be hung up.

Contents of the invention

The present application provides a call method and a terminal, which can realize normal switching of calls between dual cards on a dual-card dual-standby terminal.

In order to achieve the above object, the application adopts the following technical solutions:

In the first aspect, the embodiment of the present application provides a call method, the method may include: when the first terminal connects to the first voice call whose call target is the first SIM card, if the first terminal receives another terminal, For example, if the second terminal makes a voice call to the second SIM card, then the first terminal will send a call transfer request to the network equipment to request the network equipment to transfer the voice call of the second terminal to the second SIM card to the first SIM card superior. The network device responds to the call transfer request of the first terminal, that is, after transferring the call of the second terminal to the second SIM card to the first SIM card, the first terminal can connect to the call of the first SIM card at the same time, Connect and prompt that there is another call from the first SIM card.

That is to say, when the user answers the call of the first SIM card through the first terminal, the first terminal can also notify the user that there is another call from the first SIM card through prompts such as ringtones, vibrations, or displaying on the screen. , and the original call destination of the call is actually the second SIM card. Correspondingly, the user can choose to answer another call and keep the current call, so as to connect the voice call of another SIM card (i.e. the second SIM card) without hanging up the current call. Without being hung up, the user can also selectively connect to any call, that is, to realize switching between two calls.

Through the above method, the dual-card dual-standby terminal can realize the function similar to the dual-card dual-communication terminal, that is, it can realize the switching of calls between the dual-cards. At the same time, the implementation method does not change the hardware structure of the terminal, thereby providing a low-cost and easy-to-implement communication method.

In a possible implementation, as described above, when the first terminal connects to the voice call (or call) of the first SIM card, if it receives the call of the second SIM card, it can realize the Call mode, that is, transfer the voice call of the second SIM card to the first SIM card. Conversely, if the first SIM card of the first terminal is not in a call, and the first terminal receives a call from the second SIM card, then the first terminal can follow the call mode in the prior art, that is, the first terminal directly prompts the second SIM card to call. Two-SIM voice calls. That is to say, the first terminal realizes the call transfer of the call to the second SIM card, or the condition that can be called temporary call transfer can be: when the first terminal receives the call of the second SIM card, the first SIM card is calling.

In a possible implementation manner, the condition for the first terminal to implement the temporary call forwarding of the call to the second SIM card may also be that both the first terminal and the network device support the temporary call forwarding function.

In the second aspect, the embodiment of the present application also provides a call method, which is applied to a terminal, and the terminal may include a first processor, a second processor, and a third processor, wherein the first processor and the first The SIM card is associated, and the second processor is associated with the second SIM card. The method may include: while the first processor is connecting the first voice call whose call target is the first SIM card, the second processor may receive the second voice call whose call target is the second SIM card. At this time, the second processor detects that the first processor has connected to the first voice call and is talking, that is, the first processor has preempted the RF resources of the terminal. The second processor may send a call transfer request to the network device, which has requested the network device to transfer the call target of the second voice call to the first SIM card. Subsequently, the first processor can receive the transferred second voice call, wherein, while the first processor is receiving the transferred second voice call, the first processor is still connecting the first SIM card call. Next, the first processor may report to the third processor that there is currently a transferred second voice call, and the third processor may prompt that there is a transferred second voice call.

In a possible implementation manner, the first processor may be a Modem, and the Modem is associated with the first SIM card, and is configured to receive and process information or voice calls of the first SIM card. The second processor may be a Modem, and the Modem is associated with the second SIM card, and is used for receiving and processing information or voice calls of the second SIM card. And, the third processor may be an application processor, and the application processor may be configured to display or prompt on the terminal that there is the first voice call, the second voice call, and/or the second voice call that has been transferred.

In a third aspect, the embodiment of the present application further provides a terminal, where the terminal may include one or more processors and memories. Wherein, the processor and the memory communicate with each other through an internal connection path; the processor is used to execute instructions stored in the memory. When the processor executes the instruction, the terminal executes the method described in the first aspect or any possible implementation manner of the first aspect.

In a fourth aspect, an embodiment of the present application provides a computer-readable medium for storing a computer program, where the computer program includes instructions for executing the method in the first aspect or any possible implementation manner of the first aspect.

In a fifth aspect, an embodiment of the present application provides a computer program, where the computer program includes instructions for executing the method in the first aspect or any possible implementation manner of the first aspect.

In a sixth aspect, the embodiment of the present application provides a chip, and the chip includes a processing circuit and transceiving pins. Wherein, the transceiver pin and the processing circuit communicate with each other through an internal connection path, and the processor executes the method in the first aspect or any possible implementation of the first aspect to control the receiving pin to receive signals, so as to Control the send pin to send signal.

Description of drawings

Fig. 1 exemplarily shows a schematic diagram of a communication system;

Fig. 2 exemplarily shows a schematic block diagram of a terminal;

FIG. 3 is one of the schematic flow diagrams of a call method provided in the embodiment of the present application;

FIG. 4 is one of the schematic flow diagrams of a calling method provided in the embodiment of the present application;

Fig. 5a exemplarily shows one of the schematic diagrams of a terminal interface;

Fig. 5b exemplarily shows one of the schematic diagrams of a terminal interface;

FIG. 6 exemplarily shows one of the schematic diagrams of a terminal interface;

Fig. 7 exemplarily shows one of the schematic diagrams of a terminal interface;

FIG. 8 exemplarily shows one of the schematic diagrams of a terminal interface;

FIG. 9 exemplarily shows one of the schematic diagrams of a terminal interface;

FIG. 10 is a schematic structural diagram of a terminal provided by an embodiment of the present application.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

The term "and/or" in this article is just an association relationship describing associated objects, which means that there can be three relationships, for example, A and/or B can mean: A exists alone, A and B exist simultaneously, and there exists alone B these three situations.

The terms "first" and "second" in the description and claims of the embodiments of the present application are used to distinguish different objects, rather than to describe a specific order of objects. For example, the first target object, the second target object, etc. are used to distinguish different target objects, rather than describing a specific order of the target objects.

In the embodiments of the present application, words such as "exemplary" or "for example" are used as examples, illustrations or illustrations. Any embodiment or design scheme described as "exemplary" or "for example" in the embodiments of the present application shall not be interpreted as being more preferred or more advantageous than other embodiments or design schemes. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete manner.

In the description of the embodiments of the present application, unless otherwise specified, "plurality" means two or more. For example, multiple processing units refer to two or more processing units; multiple systems refer to two or more systems.

In order to enable those skilled in the art to better understand the technical solutions in the embodiments of the present application, before introducing the technical solutions in the embodiments of the present application, first briefly introduce the technical background that may be involved.

A dual-card terminal refers to a terminal that can use multiple SIM cards. Among them, the dual-SIM terminal can be further divided into dual-SIM Dual Standby (DSDS) and dual-SIM DualActive (DSDA) according to its different working modes.

Among them, the dual-card dual-communication terminal can use dual SIM cards and two sets of radio frequency (Radio Frequency, RF) systems, that is, each SIM card corresponds to a set of radio frequency systems, which can be used to receive calls or information corresponding to the SIM card, so that Keep dual cards working at the same time. For example: when SIM card 1 is talking, SIM card 2 can receive and answer calls normally, and can switch between two calls without hanging up any call. However, since the dual-card dual-pass terminal is equipped with two sets of radio frequencies, its power consumption and cost are relatively high, and this type of terminal has gradually withdrawn from the market.

Dual SIM Dual Standby (DSDS) terminals can use dual SIM cards and one RF system, that is, two SIM cards share one RF system. Therefore, dual cards will preempt RF resources, that is, when one card uses RF resources, the other card cannot obtain RF resources. For example: when SIM card 1 is talking, SIM card 2 can receive a call normally, but, when the user selects to answer the incoming call of SIM card, then the conversation of SIM card 1 can be hung up, that is, dual card dual standby in the prior art The terminal cannot answer calls from another card without hanging up the existing call.

In order to solve the problem that the dual-card dual-standby terminal cannot switch between two calls, the embodiment of the present application provides a call method, by transferring one incoming call to the SIM card in the call, so that the dual-card dual-standby terminal can realize a similar The function of the dual-card dual-pass terminal, that is, to realize switching between two calls. It should be noted that the technical solutions in the embodiments of the present application can also be applied to multi-card terminals, such as triple SIM triple standby (Triple SIM Triple Standby, TSTS), and this application only uses a dual-card dual-standby terminal as an example for illustration.

Before describing the technical solution of the embodiment of the present application, firstly, the communication system of the embodiment of the present application will be described with reference to the accompanying drawings. Referring to FIG. 1 , it is a schematic diagram of a communication system provided by an embodiment of the present application. The communication system includes a network device, a terminal A, a terminal B, and a terminal C. Wherein, the terminal may be a device such as a mobile phone or a tablet that can be provided with two or more SIM cards. A network device refers to a device in a core network, and is a network entity capable of performing functions such as forwarding (or switching) a voice call, for example, an application server (Application Server, AS). It should be noted that, in practical applications, the number of network devices and terminals can be one or more, and the number of network devices and terminals in the communication system shown in Figure 1 is only an example of adaptability, which is not limited in this application .

FIG. 2 shows a schematic block diagram of a terminal according to an embodiment of the present application, wherein FIG. 2 shows a schematic structural diagram of a terminal (for example: terminal A, terminal B, and terminal C) being a mobile phone.

Fig. 2 shows a schematic block diagram of a main control device according to an embodiment of the present application, and Fig. 2 shows a schematic structural diagram when the main control device is a mobile phone.

As shown in Figure 2, the mobile phone 100 may include a processor 110, an external memory interface 120, an internal memory 121, a universal serial bus (universal serial bus, USB) interface 130, a charge management module 140, a power management module 141, a battery 142, and an antenna 1 , antenna 2, mobile communication module 150, wireless communication module 160, audio module 170, sensor module 180, button 190, motor 191, indicator 192, camera 193, display screen 194, and subscriber identification module (subscriberidentification module, SIM) card interface 195 etc.

It can be understood that, the structure shown in the embodiment of the present invention does not constitute a specific limitation on the mobile phone 100 . In some other embodiments of the present application, the mobile phone 100 may include more or fewer components than shown in the figure, or combine certain components, or separate certain components, or arrange different components. The illustrated components can be realized in hardware, software or a combination of software and hardware.

The processor 110 may include one or more processing units, for example: the processor 110 may include an application processor (application processor, AP), a modem processor (Modem), a graphics processing unit (graphics processing unit, GPU), an image signal Processor (image signal processor, ISP), controller, video codec, digital signal processor (digital signal processor, DSP), baseband processor, and/or neural network processor (neural-network processing unit, NPU) wait.

It should be noted that the current smart phones all adopt the application processor + coprocessor (CoProcesser, CP) mode, and the realization of mobile phone functions is mainly based on the AP, and the CP provides the communication function. For example, the AP may store a computer program, such as an operating system and an application program, so as to realize the functions defined by the computer program. For example, the AP executes the operating system, thereby realizing various functions of the operating system on the mobile phone. The CP is generally used to enhance the multimedia processing function of the mobile phone. The communication between the AP and the CP can realize functions such as calling, sending and receiving short messages, and surfing the Internet.

Optionally, the CP may include a modem processor, where the modem processor may include one or more modems (Modems), and each Modem is associated with a SIM card, that is, the Modem may The voice call of the card is processed, such as answering or hanging up, and it can also be used to read the required data from the SIM card, such as the number of the SIM card, etc. The implementation of specific functions may refer to the following embodiments.

In some embodiments, the modem processor may be a stand-alone device. In some other embodiments, the modem processor may be independent from the processor 110, and be set in the same device as the mobile communication module 150 or other functional modules.

Wherein, different processing units may be independent devices, or may be integrated in one or more processors.

A memory may also be provided in the processor 110 for storing instructions and data. In some embodiments, the memory in processor 110 is a cache memory. The memory may hold instructions or data that the processor 110 has just used or recycled. If the processor 110 needs to use the instruction or data again, it can be called directly from the memory. Repeated access is avoided, and the waiting time of the processor 110 is reduced, thereby improving the efficiency of the system.

In some embodiments, the processor 110 may include one or more interfaces for connecting the processor 110 with other modules.

It can be understood that the interface connection relationship among the modules shown in FIG. 2 is only a schematic illustration, and does not constitute a structural limitation of the mobile phone 100 .

The charging management module 140 is configured to receive a charging input from a charger. The power management module 141 is used for connecting the battery 142 , the charging management module 140 and the processor 110 . The power management module 141 receives the input from the battery 142 and/or the charging management module 140 to provide power for the processor 110 , the internal memory 121 , the display screen 194 , the camera 193 , and the wireless communication module 160 .

The wireless communication function of the mobile phone 100 can be realized by the antenna 1, the antenna 2, the mobile communication module 150, the wireless communication module 160, the modem processor and the baseband processor.

Antenna 1 and Antenna 2 are used to transmit and receive electromagnetic wave signals. Each antenna in handset 100 can be used to cover single or multiple communication frequency bands. Different antennas can also be multiplexed to improve the utilization of the antennas. For example: Antenna 1 can be multiplexed as a diversity antenna of a wireless local area network. In other embodiments, the antenna may be used in conjunction with a tuning switch.

The mobile communication module 150 can provide solutions including 2G, 3G, 4G, 5G and other wireless communication applied on the mobile phone 100 . The mobile communication module 150 can receive electromagnetic waves through the antenna 1, filter and amplify the received electromagnetic waves, and send them to the modem processor for demodulation. The mobile communication module 150 can also amplify the signals modulated by the modem processor, and convert them into electromagnetic waves and radiate them through the antenna 1 .

The wireless communication module 160 can provide applications on the mobile phone 100 including wireless local area networks (wireless local area networks, WLAN) (such as wireless fidelity (wireless fidelity, Wi-Fi) network), bluetooth (bluetooth, BT), global navigation satellite system ( Global navigation satellite system (GNSS), frequency modulation (frequency modulation, FM), near field communication (near field communication, NFC), infrared technology (infrared, IR) and other wireless communication solutions. The wireless communication module 160 may be one or more devices integrating at least one communication processing module. The wireless communication module 160 receives electromagnetic waves via the antenna 2 , frequency-modulates and filters the electromagnetic wave signals, and sends the processed signals to the processor 110 . The wireless communication module 160 can also receive the signal to be sent from the processor 110 , frequency-modulate it, amplify it, and convert it into electromagnetic waves through the antenna 2 for radiation.

In some embodiments, the antenna 1 of the mobile phone 100 is coupled to the mobile communication module 150, and the antenna 2 is coupled to the wireless communication module 160, so that the mobile phone 100 can communicate with the network and other devices through wireless communication technology. The wireless communication technology may include global system for mobile communications (GSM), general packet radio service (general packet radio service, GPRS), code division multiple access (code division multiple access, CDMA), wideband code wideband code division multiple access (WCDMA), time-division code division multiple access (TD-SCDMA), long term evolution (LTE), BT, GNSS, WLAN, NFC, FM, and/or IR technology, etc. The GNSS may include a global positioning system (global positioning system, GPS), a global navigation satellite system (globalnavigation satellite system, GLONASS), a Beidou satellite navigation system (beidou navigationsatellite system, BDS), a quasi-zenith satellite system (quasi-zenith) satellite system (QZSS) and/or satellite based augmentation systems (SBAS).

The mobile phone 100 realizes the display function through the GPU, the display screen 194, and the application processor. Processor 110 may include one or more GPUs that execute program instructions to generate or change display information.

The display screen 194 is used to display images, videos and the like. The display screen 194 includes a display panel. Camera 193 is used to capture still images or video. The external memory interface 120 can be used to connect an external memory card.

The internal memory 121 may be used to store computer-executable program codes including instructions. The internal memory 121 may include an area for storing programs and an area for storing data. Wherein, the stored program area can store an operating system, at least one application program required by a function (such as a sound playing function, an image playing function, etc.) and the like. The storage data area can store data (such as audio data, phone book, etc.) created during the use of the mobile phone 100 . The processor 110 executes various functional applications and data processing of the mobile phone 100 by executing instructions stored in the internal memory 121 and/or instructions stored in a memory provided in the processor.

The mobile phone 100 can realize the audio function through the audio module 170 and the application processor. Such as music playback, recording, etc.

The sensor module 180 may also include a pressure sensor, a touch sensor and/or a bone conduction sensor. Wherein, the touch sensor can be disposed on the display screen 194, and the touch sensor and the display screen 194 form a touch screen, also called “touch screen”. A touch sensor can be used to detect a touch on or near it. The touch sensor can pass the detected touch operation to the application processor to determine the type of touch event. Visual output related to the touch operation can be provided through the display screen 194 .

The keys 190 include a power key, a volume key and the like. The motor 191 can generate a vibrating reminder. The indicator 192 can be an indicator light, and can be used to indicate charging status, power change, and can also be used to indicate messages, missed calls, notifications, and the like.

The SIM card interface 195 is used for connecting a SIM card. The SIM card can be connected and separated from the mobile phone 100 by inserting it into the SIM card interface 195 or pulling it out from the SIM card interface 195 . The mobile phone 100 can support 1 or N SIM card interfaces, where N is a positive integer greater than 1. SIM card interface 195 can support Nano SIM card, Micro SIM card, SIM card and so on. The mobile phone 100 interacts with the network through the SIM card to implement functions such as calling and data communication. In some embodiments, the mobile phone 100 adopts eSIM, that is, an embedded SIM card. The eSIM card can be embedded in the mobile phone 100 and cannot be separated from the mobile phone 100 .

Combining FIG. 1 and FIG. 2, FIG. 3 is a schematic flow diagram of the call method in the embodiment of the present application. In FIG. 3:

Terminal A supports the setting of more than two SIM cards. The first SIM card (referred to as SIM card 1) and the second SIM card (referred to as SIM card 2) are used as an example for illustration. The call method of this application is also applicable to three SIM cards. (set with three SIM cards) and terminals with more than three cards.

It should be further noted that, as described above, the terminal is provided with multiple SIM cards and multiple Modems, and the multiple Modems correspond to (or are associated with) the multiple SIM cards. As shown in Figure 3, in Figure 3, Modem1 is associated with SIM card 1 and can be used to implement functions such as processing voice calls to SIM card 1, and Modem2 is associated with SIM card 2 and can be used to implement voice calls to SIM card 2 processing and other functions. For the implementation of specific functions, see the specific embodiments.

It should also be noted that the terminal (for example, terminal A) described in this application is described by taking a dual-card dual-standby terminal as an example. Moreover, the dual-card dual-standby terminal is a terminal that can receive a voice call from the SIM card 2 while connecting to the voice call from the SIM card 1 . That is to say, when Modem1 connects to the voice call whose calling target is SIM card 1 , Modem2 can receive the voice call whose calling target is SIM card 2 .

Optionally, SIM card 1 and/or SIM card 2 may be a mobile SIM card, a China Unicom SIM card or a telecom SIM card, which is not limited in this application.

In step 101, terminal A negotiates with network equipment to determine that it supports the call forwarding function.

Specifically, terminal A may negotiate with the network device to determine that both terminal A and the network device support the call transfer function (also called the temporary call transfer function). That is to say, the solution of the present application can be effectively implemented only under the condition that both the terminal A and the network equipment support the call forwarding function. On the contrary, if any device in the terminal A and the network equipment does not support the call transfer function, then, when the terminal A receives a voice call from the SIM card 1 and/or SIM card 2, it will follow the dual-card dual-card It is to be processed in the manner of the terminal, that is, the terminal A connects the voice call of one SIM card and hangs up the voice call of the other SIM card.

It should be noted that the temporary call transfer function involved in this application means that the voice calls of multiple SIM cards in the terminal can be transferred to each other, for example: the voice call of SIM card 1 can be transferred to SIM card 2, wherein the SIM card 1 and SIM card 2 belong to the same terminal.

Optionally, the negotiation between terminal A and the network device may be carried out through the Modem corresponding to each SIM card and the network device. In an example, Modem1 succeeds in negotiating with the network device, but Modem2 fails in negotiating with the network device. Then, in the subsequent process, Modem1 can realize the call transfer function described in the embodiment of the present application, that is, Modem1 can transfer the voice call of SIM card 1 to SIM card 2, while Modem2 cannot transfer the voice call of SIM card 2 to SIM card 2. The call is transferred to SIM card 1. That is to say, the voice call of SIM card 2 can only be processed according to the traditional dual-card dual-standby mode.

It should be noted that the "voice call", "incoming call" or "telephone call" mentioned in this application refers to the voice call whose call target is the specified SIM card, that is to say, the voice call of SIM card 1 means that the call target is the SIM card Card 1 voice call. For example: terminal B makes a voice call to SIM card 1, then, the terminal will receive the voice call (or incoming call) whose calling target is SIM card 1 through Modem1, and in this application, it is referred to as Modem1 receiving the voice of SIM card 1 for short. call, and so on. It should be further noted that the "call transfer" mentioned in this application can also be called temporary call transfer, which are two completely different technologies from the call transfer between two terminals in the prior art.

Still referring to FIG. 3 , the negotiation process between terminal A and the network device may be initiated by the terminal or by the network device.

Taking the SIM card 1 as an example, optionally, the Modem 1 associated with the SIM card 1 may send a request to the network device to determine whether the network device also supports the call transfer function after determining that it supports the call transfer function.

In an example, Modem 1 may send capability indication information to the network device during the registration phase (referring to the phase in which SIM card 1 registers with the IP multimedia subsystem (IP multimedia subsystem, IMS) network after terminal A is turned on), for indicating that SIM card 1 (Specifically, Modem 1 corresponding to SIM card 1) supports the call forwarding function, and requests whether the network device supports the call forwarding function. Optionally, the capability indication information may be carried in a register (Register) message. For example, referring to FIG. 4 , it shows a schematic flow diagram of a possible negotiation process between Modem1 and a network device. In FIG. 4, if Modem1 supports the call transfer function, the Contact header field of the Register message sent by Modem1 to the network device during the registration phase may carry a transfer field to indicate that the terminal supports the call transfer function. The network device receives the Register message, detects that it carries the transfer field, and determines that terminal A is a terminal that supports call transfer. After the network device detects that it supports the call transfer function, it returns a Register 200 "OK message" to terminal A. The message The supported function (Supported) header field in the field carries the transfer field to indicate that the network device also supports the call transfer function.

In another example, Modem1 may also send capability indication information to the network device after the registration is completed. For example, Modem1 may carry capability indication information in a call message (Invite message), which is used to indicate that SIM card 1 (specifically, Modem1 corresponding to SIM card 1) supports the call forwarding function, and requests whether the network device supports the call forwarding function. After the network device receives the Invite message and recognizes the bearer capability indication information, it determines that the terminal supports the call forwarding function, and returns a response message, such as a 180ringing message, to the terminal after detecting that the network device also supports the call forwarding function. Optionally, the position of the capability indication information in the Register and/or Invite message may be set according to actual requirements, which is not limited in this application.

Optionally, after determining that it supports the call forwarding function, the network device may send capability indication information to the Modem1 associated with the SIM card 1 to indicate that the network device supports the call forwarding function.

In one example, the network device may negotiate with the SIM card 1 during the registration phase. In another example, the network device may negotiate with the SIM card 1 after the SIM card 1 completes the registration and accesses the network. Optionally, the network device sends capability indication information to Modem1, which is used to indicate that the network device supports the call forwarding function. Wherein, the capability indication information may be carried in a message sent by the network device during the registration phase. Optionally, the capability indication information may also be carried in the calling message sent by the network device to the SIM card 1 . The specific negotiation timing and the carrying manner of the capability indication information can be set according to actual needs, and are not limited in this application. Optionally, after receiving the capability indication information sent by the network device and determining that the terminal also supports the call transfer function, the terminal can determine that the negotiation is successful without returning response information to the network device.

Optionally, after determining that the negotiation is successful, the terminal may set in the configuration to indicate that the negotiation is successful, that is, both the terminal and the network device indicate call transfer permission indication information of the call transfer function.

In this application, the description continues by taking the example that both SIM card 1 (specifically, Modem1) and SIM card 2 (specifically, Modem2) succeed in negotiating with the network device.

In step 102, terminal A connects the voice call of SIM card 1 .

Specifically, terminal B makes a voice call to SIM card 1 in terminal A, Modem1 receives the voice call of SIM card 1 through the antenna (specifically refers to the voice call or incoming call whose call target is SIM card 1), and connects SIM card 1 voice calls.

In step 103, terminal A receives a voice call from SIM card 2 .

Specifically, after terminal A connects to the voice call of SIM card 1 through Modem1, terminal C makes a voice call to SIM card 2 in terminal A, and Modem2 receives the voice call of SIM card 2 through the antenna (specifically, the calling target is voice call or incoming call from SIM card 2).

Optionally, after receiving the voice call from the SIM card 2, the terminal A judges whether the call transfer condition is satisfied. If the condition is satisfied, go to step 104 . Optionally, call forwarding conditions include but are not limited to:

1) SIM card 1 is in a call. That is to say, terminal A is currently connected to a voice call whose call target is SIM card 1 through Modem1.

2) Both Modem2 and network equipment support call transfer function. That is to say, in step 101, the negotiation between Modem2 and the network equipment is successful. Optionally, Modem2 can determine that both Modem2 and the network equipment support the call forwarding function by detecting the configured call forwarding permission indication information.

3) Modem 2 can acquire the identification information of SIM card 1 . Optionally, the identification information of the SIM card 1 is the number of the SIM card 1 . Optionally, when Modem1 completes the stage of registering SIM card 1 with the network, Modem1 can obtain the number of SIM card 1, and cache the obtained number of SIM card 1 into the cache of terminal A, and Modem2 can obtain the number of SIM card 1 from the terminal A. The number of SIM card 1 is obtained from A's cache. The specific way for the Modem to obtain the number of the SIM card can refer to the prior art, which is not limited in this application.

It should be noted that if any of the above conditions is not satisfied, the call transfer process ends, and Modem 2 reports to the AP that SIM card 2 has a voice call, that is, the dual-card dual-standby solution in the prior art is still used. If the conditions in the above conditions are all satisfied, go to step 104 .

Step 104, terminal A sends a call transfer request to the network device.

Specifically, terminal A sends a call transfer request to the network device through Modem 2, and the call transfer request includes the identification information of SIM card 1, and is used to instruct the network device to transfer the voice call of SIM card 2 to SIM card 1. That is to say, the network device is requested to update the call destination of the voice call whose original call destination is SIM card 2 to SIM card 1 .

Step 105 , the network device transfers the voice call of SIM card 2 to SIM card 1 .

Specifically, the network device recognizes the identification information of the SIM card 1 after receiving the call transfer request sent by the Modem2. The network device can transfer the voice call of the SIM card 2 to the SIM card 1 based on the identification information. The way that the network device side transfers the voice call to another card can be as follows: the network device queries the communication link established by the network device for the SIM card 1 based on the identification of the SIM card 1, such as the number of the SIM card 1, that is, the network The communication link between the device and Modem1. Subsequently, the network device can send a voice call to Modem1 through the communication link. The specific details of call transfer can refer to the existing technology, and this application will not repeat them.

In step 106, while the terminal A is connected to the voice call of the SIM card 1, it receives the voice call whose calling target is the SIM card 1, and prompts the SIM card 1 that there is another voice call.

Specifically, after the network device transfers the call target to SIM card 1, it sends a call request to terminal A, and the call target of the call request is SIM card 1. Modem1 receives the voice call of SIM card 1 through the antenna (in order to distinguish the voice call that SIM card 1 is talking, the voice call after the transfer is called a temporary voice call), and Modem1 can connect the voice call of SIM card 1 at the same time , to report to the AP in the terminal that there is another temporary voice call on the SIM card 1. As mentioned above, the mobile phone can realize the display function through the GPU, the display screen 1, and the AP, etc. In this application, the AP receives the voice call of the SIM card 1 reported by the Modem1, and can remind the user on the terminal that the user is currently talking There is also another temporary voice call on the SIM card 1, so as to realize the effect of call waiting (or call hold) on the SIM card 1. Optionally, the manner in which the AP prompts another temporary voice call on the terminal may be vibration, sound or display, which is not limited in this application.

It can be seen that in this case, the voice call of SIM card 2 has been transferred to SIM card 1, that is, Modem1 can also receive and prompt that there is another phone call of SIM card 1 (former SIM card 1) while connecting a call. voice call on card 2). Optionally, the user may choose to connect the temporary voice call of SIM card 1 (the original voice call of SIM card 2), and hang up or hold the voice call of SIM card 1. Optionally, the user can also choose to continue to answer the voice call of SIM card 1 (the voice call of terminal B to SIM card 1), and hang up or hold the temporary voice call of SIM card 1. Obviously, compared with the dual-card dual-standby terminal in the prior art, to answer the voice call of one SIM card, it is necessary to hang up the voice call of the other SIM card. , to answer voice calls from other terminals to another card, and realize functions similar to dual-card dual-pass terminals, thereby improving user experience. Moreover, compared with the existing dual-card dual-pass terminal, the present application can effectively save costs while realizing the same functions. And, in this application, terminal A can answer another card's voice call through Modem1, so that the terminal can use the currently established call link (the link between Modem1 and the network device) to answer terminal C's call to SIM card 2. voice calls, thereby saving operator resources and improving resource utilization. .

On the basis of the embodiment shown in FIG. 3 , as shown in FIG. 4 , it exemplarily shows a schematic flow chart of a calling method. In FIG. 4 :

In step 201, Modem2 negotiates with the network device to determine that it supports the call forwarding function.

Optionally, Modem2 actively initiates negotiation to the network device, or the network device actively initiates negotiation to Modem2. And, Modem2 determines that both Modem2 (also referred to as the SIM card 2) and the network device support the call transfer function (also referred to as the temporary call transfer function).

Optionally, when the terminal detects whether it supports the call forwarding function, it may determine whether it supports the function by detecting the configuration. The configuration process can be set by the user. For example: as shown in Figure 5a, the user sets both SIM cards in the available mode, that is to say, after the user sets SIM card 1 and SIM card 2 as available, Modem1 and SIM card 1 of SIM card 1 and Modem 2 of SIM card 2 will respectively register with the network device and access the network. As shown in Fig. 5b, the user can enable the call forwarding function of SIM card 1 and/or SIM card 2 through setting. Correspondingly, during the registration phase, Modem1 and/or Modem2 may detect terminal configuration to determine whether to support the call forwarding function. It should be noted that the premise that the user can select SIM card 1 and/or SIM card 2 to enable the call forwarding function is that SIM card 1 and SIM card 2 have signed up for this function, which can be understood as: SIM card 1 and/or SIM card 2 With this function, the user can choose whether to enable it.

In this application, it is described by taking Modem1 detecting that the user sets SIM1 to support the call forwarding function, and Modem2 detecting that the user sets SIM2 supporting the call forwarding function as an example.

Optionally, Modem1 may also perform a process of negotiating with the network device, and the details are the same as those of Modem2, which will not be repeated here. It should be noted that the negotiation process between Modem1 and Modem2 may be performed at the same stage, or may be performed at different stages. In an example, Modem1 may negotiate with the network device during the registration phase to determine that it supports the call forwarding function, and Modem2 may perform the negotiation process after the registration phase, that is, after accessing the network. In another example, Modem1 and Modem2 may simultaneously negotiate with the network device during the registration process (registration times of Modem1 and Modem2 may be the same or different). This application is not limited to this.

For specific negotiation details, refer to step 101, which will not be repeated here.

In step 202, terminal A connects terminal B's voice call to SIM card 1 .

Specifically, in this application, Modem 1 reports the voice call of SIM card 1 to the AP in the terminal after receiving the voice call from terminal B to SIM card 1 . After receiving the voice call reported by Modem 1 , the AP makes terminal A prompt that there is currently a voice call from terminal B to SIM card 1 . Optionally, the prompting method may be voice prompting or display prompting. For example, terminal A displays on the screen that terminal B is calling and that the calling target is SIM card 1. This application does not limit it. The AP can obtain the operation instruction generated by the user by touching the screen, etc., to instruct the terminal A to connect to the voice call of the SIM card 1 . The AP sends the operation command to Modem1, and then Modem1 executes the operation of connecting the voice call with terminal B. The interaction process between Modem1 and AP during the connection process, and the interaction process between Modem1 and network equipment and terminal B are not shown in the figure. The specific steps can refer to the existing technology, and this application will not repeat them.

In step 203, terminal C initiates a voice call to SIM card 2 .

Specifically, step 203 may include:

Step 203a, terminal C sends an Invite message to the network device, wherein, the source address field (From field, or called From field) of the Invite message includes the number of the SIM card in terminal C, and the destination address field (To field, or called is the To field) includes the number of the SIM card 2 in the terminal A to indicate that the terminal C expects to initiate a voice call to the SIM card 2.

In step 203b, the network device sends an Invite message of terminal C to Modem2.

For the specific call process of the terminal C to the SIM card 2, reference may be made to the prior art, and the present application will not repeat them.

In step 204, Modem 2 receives a voice call from terminal C to SIM card 2.

Optionally, after SIM card 1 (specifically Modem1) establishes a call with terminal B, Modem2 receives a call request forwarded from the network device, and the call request includes a From field and a To field, wherein the From field includes the terminal C's The number of the SIM card to indicate that the originator of the call request is terminal C. The To field includes the number of the SIM card 2 to indicate that the call destination of the voice call is the SIM card 2 .

Step 205, Modem2 detects whether the call transfer condition is satisfied.

Optionally, as mentioned above, the call forwarding conditions include but not limited to:

1) SIM card 1 is in a call.

2) Both Modem2 and network equipment support call transfer function.

3) Modem2 can obtain the number of SIM card 1.

Optionally, if any of the above conditions is not satisfied, the existing dual-card dual-standby mode is still implemented on terminal A. Specifically, Modem 2 sends to the AP in terminal A, including the number of the SIM card of terminal C and the number of SIM card 2 A call request for the number. Terminal A prompts that there is an incoming call from SIM card 2. For example: the AP can make the terminal A display the voice call of the terminal C to the SIM card 2, as shown in FIG. 6 . Referring to Figure 6, in this case, the user can only choose to answer the voice call from terminal C to SIM card 2, while terminal A will hang up the voice call from terminal B to SIM card 1; or choose to hang up the voice call from terminal C to SIM card 2 2, and continue to answer the voice call made by terminal B to SIM card 1.

Optionally, if the above conditions are met, go to step 206 .

Step 206, Modem2 sends a Refer message to the network device.

Optionally, Modem2 may send a transmission (Refer) message to the network device, and the Refer-To header field in the Refer message includes the number of the SIM card 1, to indicate that the network device calls the currently received voice of Modem2, that is, the terminal C's voice call to SIM card 2 is transferred to SIM card 1. Wherein, the Refer message may also be called a call transfer request message.

Step 207, the network device sends an Invite message to Modem1.

Optionally, the network device transfers the voice call of the terminal C to the SIM card 2 to the SIM card 1 based on the number of the SIM card 1 . Specifically, the network device may update the call target (namely, SIM card 2) of the voice call made by terminal B to SIM card 2 to SIM card 1, thereby completing the transfer of the voice call.

Optionally, the network device may store a call configuration corresponding to the SIM card 2 . Call configuration includes but not limited to: call restriction service of SIM card 2, common call forwarding service of SIM card 2, push-to-talk service of SIM card 2, etc. Wherein, the call restriction service of SIM card 2 can refer to that when the user opens the call transfer function described in this application (in order to be different from ordinary services, hereinafter referred to as the temporary call transfer function) and the incoming call restriction service, it cannot be applied. Temporary call forwarding function. Common call forwarding service means that the terminal has been pre-set to forward all incoming calls or incoming calls when busy to a designated number. The push-to-talk service can also be called push to talk (Push To Talk), which has the advantages of quick call establishment and convenient team collaboration. The calling party only needs to press a button to directly initiate a call to one or a group of members, and the call is connected in time, and the called party does not need to wait for the ringing.

The temporary call transfer service in this application is also one of the call configurations. Optionally, the priority of the above-mentioned call restriction service, common call forwarding service and push-to-talk service is higher than that of the temporary call forwarding service. That is to say, after receiving the Refer message for instructing the network device to perform temporary call forwarding, the network device detects whether the SIM card 2 corresponds to other call configurations except the temporary call forwarding function. And detect the priority of each configuration. In an example, if the network device detects that the SIM card 2 is configured with a call restriction service, the network device preferentially processes the voice call of the SIM card 2 according to the requirement of the call restriction service.

Still referring to FIG. 4 , optionally, the network device re-sends the call request to terminal A, that is, the network device sends an Invite message to Modem1, and the From field in the Invite message includes the number of the SIM card of terminal C to indicate that the voice The call is initiated by terminal C, that is, it indicates that the calling terminal is: terminal C. In addition, the To field in the Invite message includes the number of the SIM card 1 to indicate that the calling target of the voice call is the SIM card 1 . Optionally, the Invite message may also include original call target indication information, which is used to indicate that the original call target of the call request is the SIM card 2 .

In step 208, Modem 1 reports the temporary voice call of SIM card 1 to the AP.

Optionally, the voice call transferred to the SIM card 1 may also be called a temporary voice call. In this application, during a voice call between terminal A (specifically SIM card 1) and terminal B, Modem1 receives an Invite message from the network device, wherein the Invite message includes but is not limited to: the number of SIM card 1, The number of the SIM card of terminal C and the indication information of the original call destination. Modem 1 reports the call request to the AP in terminal A, so as to display on the display interface of terminal A that there is currently another voice call from SIM card 1 waiting to be connected.

Optionally, Modem 1 can also report to the AP that the original call destination of the call request is SIM card 2, and correspondingly, the display interface of terminal A can display that the original call destination of the temporary voice call of SIM card 1 is SIM card 2, as shown in the figure 7.

In one example, as shown in Figure 8, in this application, the user can choose to hold the call between terminal B and SIM card 1 by touching the display screen, and connect to the temporary voice call of SIM card 1 (that is, terminal B's incoming calls). The touch sensor in the terminal can detect the user's touch operation, and then the touch sensor can pass the detected touch operation to the AP to determine that the touch event type is to connect the temporary voice call of SIM card 1 and keep terminal B and SIM Call between card 1. It should be noted that "hold" refers to putting the call in the background.

Specifically, as shown in Figure 9, the specific steps of holding the incoming call of terminal B and connecting the incoming call of terminal C are shown in Figure 9:

In step 301, the AP triggers Modem1 to send an Invite message to the network device. Specifically, after terminal A (specifically, the AP in terminal A) detects the user's operation instruction on the display screen, it can trigger Modem1 to send an Invite message to the network device based on the operation instruction, and the Invite message can include the information of the SIM card of terminal B. The number and call hold indication information is used to instruct the network device to hold the ongoing voice call of the SIM card 1 .

In step 302, the network device sends an Invite message including call hold indication information to terminal B based on the number of the SIM card of terminal B carried in the Invite message. After terminal B receives the Invite message, it will hear the call hold tone to remind terminal B that the call is on hold.

In step 303, terminal B returns a response message (ie, a 200 OK message) to the network device to indicate that terminal B has received the Invite message indicating that the voice call is on hold.

Step 304, the network device forwards the 200 OK message to Modem1.

Step 305, after receiving the 200 OK message, terminal A sends an acknowledgment (Acknowledgment, ACK) message to the network device, which may also be called an acknowledgment message, to indicate that terminal A has successfully received the 200 OK message.

Step 306, the network device forwards the ACK message to terminal B.

Step 307, Modem1 sends a 200OK message to the network device, the 200OK message carries the number of the SIM card of terminal C, to indicate that Modem1 expects to connect to the incoming call of terminal C.

Step 308, the network device forwards the 200 OK message to terminal C based on the number of the SIM card of terminal C carried in the 200 OK message.

In step 309, terminal C returns an ACK message to indicate that terminal C has received the 200 OK message.

Step 310, after receiving the ACK message returned by terminal C, the network device sends an ACK message to Modem1 to notify Modem1 that a call with terminal C can be established.

In step 311, terminal A can establish a call with terminal C through Modem1.

In another example, the user can also choose to hold the temporary voice call of terminal C to SIM card 1 (the original call target is SIM card 2) by touching the display screen, and continue to answer the voice call of terminal B to SIM card 1. In order to realize this scenario, the interaction process between Modem1, network equipment, and terminal B and terminal C is similar to that shown in FIG. 9 , and will not be repeated here.

In another example, terminal A can also hang up the voice call of terminal B to SIM card 1 according to the user's choice, and answer the temporary call of terminal C to SIM card 1 (the original call target is SIM card 2).

In another example, terminal A may continue to answer the voice call made by terminal B to SIM card 1 according to the user's choice, and hang up the temporary call made by terminal C to SIM card 1 (the original call target is SIM card 2).

In another example, terminal A may also hang up the voice call of terminal B to SIM card 1 and the temporary call of terminal C to SIM card 1 (the original call target is SIM card 2) according to the user's selection.

The foregoing mainly introduces the solution provided by the embodiment of the present application from the perspective of interaction between various network elements. It can be understood that, in order to realize the above functions, the terminal includes hardware structures and/or software modules corresponding to each function. Those skilled in the art should easily realize that the embodiments of the present application can be implemented in the form of hardware or a combination of hardware and computer software in combination with the example units and algorithm steps described in the embodiments disclosed herein. Whether a certain function is executed by hardware or computer software drives hardware depends on the specific application and design constraints of the technical solution. Skilled artisans may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the present application.

The embodiment of the present application may divide the terminal into functional modules according to the above method example, for example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The above-mentioned integrated modules can be implemented in the form of hardware or in the form of software function modules. It should be noted that the division of modules in the embodiment of the present application is schematic, and is only a logical function division, and there may be other division methods in actual implementation.

In an example, in the case of dividing each functional module corresponding to each function, FIG. 10 shows a possible structure of the terminal 100 involved in the above embodiment Schematic diagram, as shown in FIG. 10 , the terminal 100 may include: a processing module 101 , a sending and receiving module 102 and a prompting module 103 . Wherein, the processing module 101 can be used for the step of "connecting the first voice call whose call target is the first SIM card", for example, this module can be used to support the terminal to execute step 102 and step 202 in the above method embodiment. The transceiver module 102 can be used for the step of "after connecting the first voice call, receive the second voice call whose target is the second SIM card, and send a call transfer request message to the network device", for example, this module can be used to support the terminal Step 103, step 104, step 204, and step 206 in the above method embodiment are executed. The transceiving module 101 can also be used in the step of "receiving the transferred second voice call", for example, this module can be used to support the terminal to execute step 106 and step 207 in the above method embodiment. The prompting module 103 is used for the step of "prompting that there is a transferred second voice call", for example, this module can be used to support the terminal to execute steps 106 and 208 in the above method embodiments.

Wherein, all relevant content of each step involved in the above-mentioned method embodiment can be referred to the function description of the corresponding function module, and will not be repeated here.

In addition, this application also describes some embodiments, including:

Embodiment 1, a call method, which is characterized in that it is applied to a first terminal, and the first terminal is provided with a first SIM card and a second SIM card, wherein the first terminal connects to the target of the call During the voice call of the first SIM card, a voice call whose call target is the second SIM card can also be received; the method includes:

When the first terminal connects to the first voice call whose call target is the first SIM card, it receives and prompts that there is another second voice call whose call target is the first SIM card;

Wherein, the second voice call is after the network device transfers the voice call of the second terminal to the second SIM card to the first SIM card based on the call transfer request from the first terminal, and sends the voice call to the first SIM card. Sent by the first terminal, the call transfer request includes identification information of the first SIM card;

The call transfer request is sent to the network device after the first terminal connects to the first voice call and receives a voice call from the second terminal to the second SIM card.

Embodiment 2, according to the method described in embodiment 1, is characterized in that, described method also comprises:

The first terminal negotiates with the network device, and determines that both the first terminal and the network device support a call forwarding function.

Embodiment 3. The method according to Embodiment 2, wherein the negotiation with the network device includes:

The first terminal sends capability information to the network device, which is used to indicate that the first terminal supports the call forwarding function;

If the first terminal receives the response information sent by the network device and used to indicate that the network device supports the call forwarding function, it determines that the negotiation is successful.

Embodiment 4, the method according to Embodiment 3, wherein the capability information is that the first terminal sends the information to the first terminal after accessing the network to which the network device belongs and before receiving the first voice call. sent by the above network equipment;

or,

The capability information is sent by the first terminal to the network device when registering with the network.

Embodiment 5. The method according to Embodiment 2, wherein the negotiation with the network device includes:

If the capability determination information sent by the network device is received, detecting whether the first terminal supports the call forwarding function, where the capability determination information is used to indicate that the network device supports the call forwarding operation function;

If it is detected that the first terminal supports the call transfer function, it is determined that the negotiation is successful.

Embodiment 6, the method according to Embodiment 5, wherein the capability determination information is received by the network device before the first terminal accesses the network device and receives the first voice call ;

or,

The capability determination information is received by the first terminal when registering with the network.

Embodiment 7. The method according to any one of Embodiments 1 to 6, wherein the identification information is number information of the first SIM card.

Embodiment 8. The method according to any one of embodiments 1 to 7, wherein the method further comprises:

The first terminal connects the second voice call and puts the first voice call on hold;

or,

The first terminal continues to connect to the first voice call, and puts the second voice call on hold.

Embodiment 9. The method according to any one of embodiments 1 to 8, wherein the method further comprises:

The first terminal prompts that the original call target of the second voice call is the second SIM card.

Embodiment 10, a call method, which is applied to a terminal, the terminal includes a first processor, a second processor, and a third processor, the first processor is associated with the first SIM card, and the The second processor is associated with a second SIM card;

The first processor is configured to connect a first voice call whose call target is the first SIM card;

The second processor is configured to, after the first processor connects the first voice call, receive a second voice call whose call target is the second SIM card, and send a call transfer request to a network device message, the call transfer request message includes the identification information of the first SIM card, and is used to instruct the network device to transfer the call target of the second voice call to the first SIM card based on the identification information ;

The first processor is further configured to receive the transferred second voice call, and send the transferred second voice call to the third processor while connecting the first voice call call;

The third processor is configured to prompt that there is the transferred second voice call.

Embodiment 11, according to the method described in embodiment 10, is characterized in that,

The second processor is further configured to negotiate with the network device to determine that both the second processor and the network device support a call forwarding function.

Embodiment 12, the method according to Embodiment 11, wherein when the second processor negotiates with the network device, the second processor is further used to:

The second processor sends capability information to the network device, which is used to indicate that the second processor supports the call forwarding function;

If the second processor receives response information sent by the network device for indicating that the network device supports the call forwarding function, determine that the negotiation is successful.

Embodiment 13, the method according to Embodiment 12, wherein the capability information is the information sent by the first terminal to the network after the first terminal accesses the network to which the network device belongs and before receiving the first voice call. sent by the above network equipment;

or,

The capability information is sent by the first terminal to the network device when registering with the network.

Embodiment 14. The method according to Embodiment 11, wherein when the second processor negotiates with the network device, the second processor is further used to:

If the second processor receives the capability determination information sent by the network device, detect whether the second processor supports the call forwarding function, wherein the capability determination information is used to indicate that the network The device supports the call transfer operation function;

If the second processor detects that the first terminal supports the call forwarding function, determine that the negotiation is successful.

Embodiment 15, the method according to Embodiment 14, wherein the capability determination information is received by the network device before the first terminal accesses the network device and receives the first voice call ;

or,

The capability determination information is received by the first terminal when registering with the network.

Embodiment 16, the method according to any one of Embodiments 10 to 15, wherein the identification information is number information of the first SIM card.

Embodiment 17. The method according to any one of embodiments 10 to 16, characterized in that,

The third processor is further configured to prompt that the original call target of the second voice call is the second SIM card.

Embodiment 18. The method according to any one of Embodiments 10 to 17, wherein the first processor and the second processor are Modems;

The third processor is an application processor AP.

Embodiment 19, a communication device, which is characterized in that it is applied to a first terminal, and the first terminal is provided with a first SIM card and a second SIM card, wherein the target of the call connected by the first terminal is the During the voice call of the first SIM card, the voice call whose call target is the second SIM card can also be received; the device includes:

The receiving unit is used for the first terminal to receive and prompt that there is another second voice call whose target is the first SIM card when the first terminal is connected to the first voice call whose target is the first SIM card;

Wherein, the second voice call is after the network device transfers the voice call of the second terminal to the second SIM card to the first SIM card based on the call transfer request from the first terminal, and sends the voice call to the first SIM card. Sent by the first terminal, the call transfer request includes identification information of the first SIM card;

The call transfer request is sent to the network device after the first terminal connects to the first voice call and receives a voice call from the second terminal to the second SIM card.

Embodiment 20, the device according to embodiment 19, characterized in that the device further includes:

The negotiating unit is configured to negotiate with the network equipment to determine that both the first terminal and the network equipment support a call forwarding function.

Embodiment 21, the device according to Embodiment 20, wherein the negotiation unit is also used for:

sending capability information to the network device, used to indicate that the first terminal supports the call forwarding function;

If the response information sent by the network device and used to indicate that the network device supports the call forwarding function is received, it is determined that the negotiation is successful.

Embodiment 22, the device according to Embodiment 21, wherein the capability information is that the negotiating unit sends to the sent by network equipment;

or,

The capability information is sent by the negotiating unit to the network device when registering with the network.

Embodiment 23, the device according to Embodiment 20, wherein the negotiation unit is also used for:

If the capability determination information sent by the network device is received, detecting whether the first terminal supports the call forwarding function, where the capability determination information is used to indicate that the network device supports the call forwarding operation function;

If it is detected that the first terminal supports the call transfer function, it is determined that the negotiation is successful.

Embodiment 24, the device according to Embodiment 23, wherein the capability determination information is received by the network device before the first terminal accesses the network device and receives the first voice call ;

or,

The capability determination information is received by the negotiating unit when registering with the network.

Embodiment 25, the device according to any one of Embodiments 19 to 24, wherein the identification information is number information of the first SIM card.

Embodiment 26. The device according to any one of embodiments 19 to 25, wherein the device further comprises:

a processing unit, configured to connect the second voice call and hold the first voice call;

or,

The processing unit is further configured to continue connecting the first voice call and hold the second voice call.

Embodiment 27. The device according to any one of Embodiments 19 to 26, wherein the receiving module is also used for:

Prompting that the original call target of the second voice call is the second SIM card.

Embodiment 28, a terminal, wherein the first terminal is provided with a first SIM card and a second SIM card, wherein the first terminal is connected to a voice call whose calling target is the first SIM card , may also receive a voice call whose call target is the second SIM card; the terminal includes:

a memory coupled to one or more processors, the memory coupled to the one or more processors;

The memory stores instructions, wherein, when the instructions are executed by the one or more processors, the terminal performs the following steps:

When the first voice call whose call target is the first SIM card is connected, receive and prompt that there is another second voice call whose call target is the first SIM card;

Wherein, the second voice call is after the network device transfers the voice call of the second terminal to the second SIM card to the first SIM card based on the call transfer request from the first terminal, and sends the voice call to the first SIM card. Sent by the first terminal, the call transfer request includes identification information of the first SIM card;

The call transfer request is sent to the network device after the first terminal connects to the first voice call and receives a voice call from the second terminal to the second SIM card.

Embodiment 29, the terminal according to Embodiment 28, wherein, when the instruction is executed by the one or more processors, the terminal performs the following steps:

Negotiating with the network device to determine that both the first terminal and the network device support a call forwarding function.

Embodiment 30, the terminal according to Embodiment 29, wherein when the instruction is executed by the one or more processors, the terminal performs the following steps when negotiating with the network device:

sending capability information to the network device, used to indicate that the first terminal supports the call forwarding function;

If the response information sent by the network device and used to indicate that the network device supports the call forwarding function is received, it is determined that the negotiation is successful.

Embodiment 31, the terminal according to Embodiment 30, wherein the capability information is the information that the first terminal sends to the network after the first terminal accesses the network to which the network device belongs and before receiving the first voice call. sent by the above network equipment;

or,

The capability information is sent by the first terminal to the network device when registering with the network.

Embodiment 32, the terminal according to Embodiment 29, wherein when the instruction is executed by the one or more processors, the terminal performs the following steps when negotiating with the network device:

If the capability determination information sent by the network device is received, detecting whether the first terminal supports the call forwarding function, where the capability determination information is used to indicate that the network device supports the call forwarding operation function;

If it is detected that the first terminal supports the call transfer function, it is determined that the negotiation is successful.

Embodiment 33, the terminal according to Embodiment 32, wherein the capability determination information is received by the network device before the first terminal accesses the network device and receives the first voice call ;

or,

The capability determination information is received by the first terminal when registering with the network.

Embodiment 34, the terminal according to any one of Embodiments 28 to 33, wherein the identification information is number information of the first SIM card.

Embodiment 35, the terminal according to any one of Embodiments 28 to 34, wherein, when the instructions are executed by the one or more processors, the terminal performs the following steps:

connecting the second voice call and putting the first voice call on hold;

or,

Continue to connect the first voice call, and put the second voice call on hold.

Embodiment 36, the terminal according to any one of Embodiments 28 to 35, wherein, when the instruction is executed by the one or more processors, the terminal performs the following steps:

Prompting that the original call target of the second voice call is the second SIM card.

Embodiment 37. A computer program. When the computer program is executed by a terminal, the terminal executes the method described in any one of Embodiments 1 to 9.

Embodiment 38. A computer-readable storage medium, the computer-readable storage medium stores a computer program, the computer program includes at least one piece of code, and the at least one piece of code can be executed by a terminal to control the terminal to execute the embodiment The method described in any one of 1 to 9.

Embodiment 39, a chip, the chip includes a processing circuit and transceiving pins. The processing circuit is configured to execute the method described in any one of Embodiments 1 to 9.

The steps of the methods or algorithms described in connection with the disclosure of the embodiments of the present application may be implemented in the form of hardware, or may be implemented in the form of a processor executing software instructions. The software instructions can be composed of corresponding software modules, and the software modules can be stored in random access memory (Random Access Memory, RAM), flash memory, read only memory (Read Only Memory, ROM), erasable programmable read-only memory ( Erasable Programmable ROM, EPROM), Electrically Erasable Programmable Read-Only Memory (Electrically EPROM, EEPROM), registers, hard disk, removable hard disk, CD-ROM, or any other form of storage medium known in the art. 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 storage medium can be located in the ASIC. Additionally, the ASIC may be located in a network device. Of course, the processor and the storage medium can also exist in the network device as discrete components.

The steps of the methods or algorithms described in connection with the disclosure of the embodiments of the present application may be implemented in the form of hardware, or may be implemented in the form of a processor executing software instructions. The software instructions can be composed of corresponding software modules, and the software modules can be stored in random access memory (Random Access Memory, RAM), flash memory, read only memory (Read Only Memory, ROM), erasable programmable read-only memory ( Erasable Programmable ROM, EPROM), Electrically Erasable Programmable Read-Only Memory (Electrically EPROM, EEPROM), registers, hard disk, removable hard disk, CD-ROM, or any other form of storage medium known in the art. 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 storage medium can be located in the ASIC. Additionally, the ASIC may be located in a network device. Of course, the processor and the storage medium can also exist in the network device as discrete components.

Those skilled in the art should be aware that, in the foregoing one or more examples, the functions described in the embodiments of the present application may be implemented by hardware, software, firmware or any combination thereof. When implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.

The embodiments of the present application have been described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementations. The above-mentioned specific implementations are only illustrative and not restrictive. Those of ordinary skill in the art will Under the inspiration of this application, without departing from the purpose of this application and the scope of protection of the claims, many forms can also be made, all of which belong to the protection of this application.

Claims (18)

1. A calling method, characterized in that it is applied to a first terminal, and the first terminal supports at least a first SIM card and a second SIM card, wherein, when the first SIM card and the second SIM card are set Two SIM cards, when the first terminal connects the voice call whose call target is the first SIM card, it can also receive the voice call whose call target is the second SIM card; the method includes: When the first terminal connects to the first voice call whose call target is the first SIM card, it receives and prompts that there is another second voice call whose call target is the first SIM card; Wherein, the second voice call is after the network device transfers the voice call of the second terminal to the second SIM card to the first SIM card based on the call transfer request from the first terminal, and sends the voice call to the first SIM card. Sent by the first terminal, the call transfer request includes identification information of the first SIM card; The call transfer request is sent to the network device after the first terminal connects to the first voice call and receives a voice call from the second terminal to the second SIM card; After the first terminal sends the call transfer request to the network device, the method further includes: The first terminal receives a call message from the network device, the call message at least includes: original call target indication information, the original call target indication information is used to indicate that the original call target of the call request is the second SIM card; The first terminal displays on the display interface of the first terminal that the original call target of the second voice call to the first SIM card is the second SIM card according to the call message; Wherein, after the network device receives the call transfer request message, the network device detects whether the second SIM card corresponds to other call configurations except temporary call transfer and detects the priority of each call configuration ; The network device processes the voice call of the second SIM card according to the priority configured for each call. 2. The method according to claim 1, characterized in that the method further comprises: The first terminal negotiates with the network device, and determines that both the first terminal and the network device support a call forwarding function. 3. The method according to claim 2, wherein said negotiating with said network device comprises: The first terminal sends capability information to the network device, which is used to indicate that the first terminal supports the call forwarding function; If the first terminal receives the response information sent by the network device and used to indicate that the network device supports the call forwarding function, it determines that the negotiation is successful. 4. The method according to claim 3, wherein the capability information is that the first terminal sends information to the network after the first terminal accesses the network to which the network device belongs and before receiving the first voice call. sent by the device; or, The capability information is sent by the first terminal to the network device when registering with the network. 5. The method according to claim 2, wherein said negotiating with said network device comprises: If the capability determination information sent by the network device is received, detecting whether the first terminal supports the call forwarding function, where the capability determination information is used to indicate that the network device supports the call forwarding function; If it is detected that the first terminal supports the call transfer function, it is determined that the negotiation is successful. 6. The method according to claim 5, wherein the capability determination information is received by the network device before the first terminal accesses the network device and receives the first voice call; or, The capability determination information is received by the first terminal when registering with the network. 7. The method according to any one of claims 1 to 6, wherein the identification information is number information of the first SIM card. 8. The method according to any one of claims 1 to 6, wherein the method further comprises: The first terminal connects the second voice call and puts the first voice call on hold; or, The first terminal continues to connect to the first voice call, and puts the second voice call on hold. 9. A terminal, characterized in that the first terminal at least supports setting a first SIM card and a second SIM card, wherein, when setting the first SIM card and the second SIM card, the first terminal connects When making a voice call whose call target is the first SIM card, it may also receive a voice call whose call target is the second SIM card; the terminal includes: a memory and a processor, the memory being coupled to the processor; The memory stores instructions, wherein, when the instructions are executed by one or more of the processors, the terminal performs the following steps: When the first voice call whose call target is the first SIM card is connected, receive and prompt that there is another second voice call whose call target is the first SIM card; Wherein, the second voice call is after the network device transfers the voice call of the second terminal to the second SIM card to the first SIM card based on the call transfer request from the first terminal, and sends the voice call to the first SIM card. Sent by the first terminal, the call transfer request includes identification information of the first SIM card; The call transfer request is sent to the network device after the first terminal connects to the first voice call and receives a voice call from the second terminal to the second SIM card; After the first terminal sends a call transfer request to the network device, when the instruction is executed by the processor, the terminal is made to perform the following steps: The first terminal receives a call message from the network device, the call message at least includes: original call target indication information, the original call target indication information is used to indicate that the original call target of the call request is the second SIM card; The first terminal displays on the display interface of the first terminal that the original call target of the second voice call to the first SIM card is the second SIM card according to the call message; Wherein, after the network device receives the call transfer request message, the network device detects whether the second SIM card corresponds to other call configurations except the temporary call transfer function and detects the priority of each call configuration. level; the network device processes the voice call of the second SIM card according to the priority configured for each call. 10. The terminal according to claim 9, wherein when the instruction is executed by the processor, the terminal is made to perform the following steps: Negotiating with the network device to determine that both the first terminal and the network device support a call forwarding function. 11. The terminal according to claim 10, wherein when the instruction is executed by the processor, the terminal performs the following steps when negotiating with the network device: sending capability information to the network device, used to indicate that the first terminal supports the call forwarding function; If the response information sent by the network device and used to indicate that the network device supports the call forwarding function is received, it is determined that the negotiation is successful. 12. The terminal according to claim 11, wherein the capability information is that the first terminal sends information to the network after the first terminal accesses the network to which the network device belongs and before receiving the first voice call. sent by the device; or, The capability information is sent by the first terminal to the network device when registering with the network. 13. The terminal according to claim 10, wherein when the instruction is executed by the processor, the terminal performs the following steps when negotiating with the network device: If the capability determination information sent by the network device is received, detecting whether the first terminal supports the call forwarding function, where the capability determination information is used to indicate that the network device supports the call forwarding function; If it is detected that the first terminal supports the call transfer function, it is determined that the negotiation is successful. 14. The terminal according to claim 13, wherein the capability determination information is received by the network device before the first terminal accesses the network device and receives the first voice call; or, The capability determination information is received by the first terminal when registering with the network. 15. The terminal according to any one of claims 9 to 14, wherein the identification information is number information of the first SIM card. 16. The terminal according to any one of claims 9 to 14, wherein when the instruction is executed by the processor, the terminal is made to perform the following steps: connecting the second voice call and putting the first voice call on hold; or, Continue to connect the first voice call, and put the second voice call on hold. 17. A computer-readable storage medium, the computer-readable storage medium stores a computer program, the computer program includes at least one piece of code, and the at least one piece of code can be executed by a terminal to control the terminal to execute claims 1 to 17. 8. The method described in any one. 18. A chip, comprising a processing circuit and transceiving pins; the processing circuit is used to execute the method according to any one of claims 1 to 8.

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