WO2018187896A1 - Call establishment method and apparatus - Google Patents

Abstract

Provided is a call establishment method, which is applied to a first terminal. When the first terminal needs to establish a call with a second terminal in a common channel, the first terminal determines information about a private channel used for establishing the call, wherein the private channel is an idle channel different from the common channel; and the call is established with the second terminal via the private channel. A call established by a communication terminal by using the call establishment method is not affected by a direct group call nor interrupted by the direct group call, and thus the communication effect is better.

Description

Call establishment method and device Technical field

The present invention relates to the field of through communication technologies, and in particular, to a call establishment method and apparatus.

Background technique

Terminals in the field of professional mobile communication usually have a pass-through mode, and the terminal standard establishes a call, group call and full call function for them, but these call models do not cover all the communication scene requirements of the user. For example, when the terminal is in a group call, there may be a need to separately make a call with another terminal in the group call without being interfered by other terminals.

In the prior art, when a terminal in a group call needs to perform private communication with another terminal in the group call, the terminal first sends a break message in the group call common channel, and interrupts the group call. A separate call to another terminal in the group call is then established through the common channel of the group call in which it is located. During the above call setup process, the terminal forcibly interrupts the group call and directly establishes a separate call with the other terminal in the group call common channel, and the established call is easily interrupted by the re-initiated group call, and the communication effect is not it is good.

Summary of the invention

Based on the above drawbacks and deficiencies of the prior art, the present invention provides a call setup method and apparatus. The terminal uses the method to establish a call on a private channel without being interrupted by a group call, and the communication effect is better.

A first aspect of the present invention provides a call setup method for a first terminal, the method comprising the steps of: determining information about a private channel used to establish a call when a call needs to be established with a second terminal in the common channel Wherein the private channel is an idle channel different from the common channel; a call is established with the second terminal over the private channel. It can be seen that when the first terminal needs to establish a call with the second terminal, the first terminal determines the private channel information used to establish the call by using the technical solution of the present invention, and establishes a call with the second terminal through the private channel. The established call will not be interrupted by the group call, and the communication effect is better.

A second aspect of the present invention provides a private call setup apparatus, which is applied to a first terminal, the apparatus comprising: a channel confirming unit, configured to determine information of a private channel used to establish a call; wherein the private channel is different An idle channel on the common channel; a call setup unit, configured to pass the The private channel establishes a call with the second terminal.

A third aspect of the present invention provides another private call establishing apparatus, which is applied to a first terminal, including: a first memory and a first processor; wherein the first memory is connected to the first processor, and is configured to: And storing the program and the data generated in the running of the program; the first processor is configured to run the program in the first memory to implement the following function: when it is required to establish a call with the second terminal in the common channel, determine the use Information for establishing a private channel of the call; wherein the private channel is an idle channel different from the common channel; a call is established with the second terminal through the private channel.

In an implementation, the determining, by the common channel, the call setup request information is sent to the second terminal by using the common channel, and receiving the private channel information that is sent by the second terminal. Representing information that accepts the call setup request.

In an implementation manner, the determining, by the public channel, information about a private channel for establishing a call, includes: sending, by using the common channel, call setup request information including private channel information to the second terminal; and receiving, by the second terminal, Representing information that accepts the call setup request.

In an implementation manner, the establishing, by the private channel, the call with the second terminal includes: jumping from the common channel to the private channel; sending, by using the private channel, to the second terminal a call setup request; receiving, by the second terminal, information indicating that the call setup request is accepted, and establishing a private call with the second terminal.

In an implementation manner, the first terminal further stores the suspension duration information; after the first terminal establishes a call with the second terminal by using the private channel, the method further includes: when the second terminal is When the sending of the call information ends, or when the receiving of the call information sent by the second terminal ends, the timing is started; if the time period reaches the suspension duration, the call information sent by the second terminal is not received, and there is no more Sending call information to the second terminal, then jumping to the common channel.

In an implementation manner, the sending, by using the common channel, the call setup request information that includes the private channel information to the second terminal includes: detecting whether the first time slot in the current common channel is occupied; if the public If the first time slot in the channel is not occupied, sending call setup request information including private channel information to the second terminal through the first time slot in the common channel; if the first time in the common channel If the slot is occupied, the call setup request information including the private channel information is sent to the second terminal through the second slot in the common channel.

A fourth aspect of the present invention provides another private call setup method, which is applied to a second terminal, the method comprising: responding to an operation performed by the first terminal to determine information for establishing a private channel of a call; Establishing a call with the first terminal. It can be seen that in the private call setup method of the present invention, the second terminal establishes a call with the first terminal in a private channel different from the common channel. The established call will not be interrupted by the group call, and the communication effect is better.

A fifth aspect of the present invention provides another private call establishing apparatus, which is applied to a second terminal, and includes: an operation response unit, configured to perform an operation of determining information of a private channel for establishing a call, performed by the first terminal; And a unit, configured to establish a call with the first terminal by using the private channel.

A sixth aspect of the present invention provides another private call establishing apparatus, which is applied to a second terminal, including: a second memory and a second processor; wherein the second memory is connected to the second processor, and is configured to: And storing the program and the data generated in the running of the program; the second processor is configured to run the program in the second memory, and implement the following function: determining information about the private channel used to establish the call in response to the first terminal performing An operation of establishing a call with the first terminal over the private channel.

In an implementation manner, the operation performed by the first terminal to determine information for establishing a private channel of the call includes: receiving call setup request information that includes information of the private channel sent by the first terminal through the common channel. Sending to the first terminal information indicating that the call setup request is accepted.

In an implementation manner, the operation performed by the first terminal to determine information for establishing a private channel of the call includes: receiving call setup request information sent by the first terminal through a common channel; and to the first terminal Sending information containing private channel information characterizing the acceptance of the call setup request.

In an implementation manner, the second terminal stores the suspension duration information; after the second terminal establishes a call with the first terminal by using the private channel, the method further includes: when the first terminal is When the sending of the call information ends, or when the receiving of the call information sent by the first terminal ends, the timing starts; if the time period reaches the suspension period, the call information sent by the first terminal is not received, and there is no more Sending call information to the first terminal, then jumping to the common channel.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will be implemented The drawings used in the examples or the description of the prior art are briefly introduced. It is obvious that the drawings in the following description are merely examples of the present invention, and those skilled in the art do not make creative work. Further drawings may also be obtained from the drawings provided.

1 is a schematic diagram of a through group call according to an embodiment of the present invention;

2 is a schematic flowchart of a method for establishing a private call according to an embodiment of the present invention;

3 is a schematic diagram of a private call according to an embodiment of the present invention;

4 is a schematic structural diagram of a private call setup apparatus according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of another private call setup apparatus according to an embodiment of the present invention; FIG.

FIG. 6 is a schematic structural diagram of another private call setup apparatus according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of another private call setup apparatus according to an embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

FIG. 1 is a schematic diagram of a through communication scenario according to an embodiment of the present invention.

As shown in FIG. 1, in the through group call shown by CH1, the terminal A wants to communicate with the terminal G. In the prior art, the terminal A directly sends a break message in the CH1 common channel, interrupts the group call, and then sends a call setup request to the terminal G through the common channel, and the terminal G accepts the call setup request sent by the terminal A, A and G establishes a call. Since A and G are private calls established in the common channel, and the common channel is shared by all the terminals in the CH1 pass-through group call, the call established by A and G is likely to be initiated by other terminals in CH1. The group call is interrupted and the communication effect is not good.

The embodiment of the invention provides a private call setup method, which enables a stable call to be established between terminals without being interrupted by a group call.

As shown in FIG. 2, when the terminal A in the group call needs to establish a separate call with the terminal G, the call setup method proposed by the embodiment of the present invention includes the following steps:

S201. The terminal A detects whether the first time slot in the common channel of the current group call CH1 is occupied.

If the first time slot in the common channel of the group call CH1 is not occupied, then steps are performed. S202. The terminal A sends the call setup request information including the private channel information to the terminal G by using the first time slot of the common channel of the CH1.

If the first time slot in the common channel of the group call CH1 is occupied, step S203 is performed, and the terminal A sends the call setup request information including the private channel information to the terminal G through the second time slot of the common channel of the CH1;

In the digital walkie-talkie standard, a direct-through group call channel is defined by two time slots, and the digital walkie-talkie is a half-duplex mode, and each call occupies one time slot. When terminal A wants to send private call setup request information through the common channel of CH1, it first detects which time slot is occupied and which time slot is not occupied, and can be used to transmit information.

It should be noted that, in theory, in the direct group call system, the first time slot and the second time slot of the common channel may be occupied by the direct group call. If both the first time slot and the second time slot of the common channel of CH1 are occupied, the terminal A forcibly transmits the call setup request information to the terminal G through any one of the time slots. In the embodiment of the present invention, in order to avoid a conflict between the call established between the terminals and the original pass-through group call, it is ensured that the technical solution of the embodiment of the present invention can be smoothly implemented, and the direct-through group call only occupies one time of the common channel. The slot, for example, sets the pass-through group call to occupy only the first time slot of the common channel, and the second time slot of the common channel is reserved for use as a call setup request message between the terminals. Through the above settings, a conflict between the sending of the call setup request information between the terminals and the original through group call is effectively avoided. When the terminal needs to send the call setup request information, it first detects whether the first time slot of the common channel is occupied, if not, directly transmits information through the first time slot; if the first time slot is occupied, passes the second The time slot transmits information, and two time slots are available for selection, so that the terminal can successfully implement the technical solution of the embodiment of the present invention to establish a call.

Obviously, it is also possible to set the terminal to directly send the private call setup request information through the reserved second channel of the common channel. The embodiment of the present invention only explains in the foregoing manner that in the actual use, a time slot is reserved for the terminal for transmitting call setup request information, and the terminal preferentially sends call setup request information through the common channel idle time slot, and does not refer to the common channel. The method for dividing the time slot and the time slot occupied by the terminal are strictly defined. When the technical solution of the embodiment of the present invention is implemented, the manner in which the terminal sends information can be flexibly set according to actual conditions.

The terminal applying the private call setup method proposed by the embodiment of the present invention stores idle private channel information set by the user for establishing a call, and suspension duration information. The private channel is an idle channel different from the common channel where the terminal is located, and can be used to establish a separate call between terminals. The private channel information is not limited to being set by the user, but may also be determined by the terminal by scanning the idle channel. Further, the terminal may also use any feasible method to determine the idle channel information that can be used to establish a call, which is not strictly limited in the embodiment of the invention.

When the terminal stores the user-configured private channel information for establishing a call, the user can configure the private channel information stored by the terminal. Specifically, the user may configure the same private channel information or different private channel information for different terminals. When the user configures different private channel information for different terminals, each terminal stores one or more different private channel information. When the terminal needs to establish a call, it randomly selects a private channel from the private channel stored by itself. , can be used to establish a call.

When the user configures the same private channel information for different terminals, the same plurality of private channel information is stored in each terminal. When the terminal needs to establish a private call, since the private channels available to each terminal are the same, it may happen that other terminals have occupied a part of the private channel. Therefore, before sending the private call setup request, the terminal needs to first detect which private channels are idle private. The channel sends the idle private channel information to the other party, and the two parties establish a private call in the idle private channel.

When the terminal A in the through-group call CH1 needs to establish a private call connection with the terminal G in the CH1, the terminal A selects a private channel that can establish a private call according to the above method, and then the terminal A generates a private channel information including the selected one. The private call setup request information is sent to the terminal G through the common channel of the direct group call CH1 currently located. Specifically, the terminal A knows information such as the ID identification information of the terminal G, and according to the identification information of the terminal G, the terminal A can accurately transmit the private call setup request information to the terminal G.

S204. The terminal G receives the call setup request information sent by the terminal A.

After the terminal A sends the call setup request information to the terminal G, the terminal G receives the call setup request information, and can parse the information of the private channel sent by the terminal A from the received call setup request information. If the terminal G can establish a private call with the terminal A, the terminal G accepts the call setup request sent by the terminal A.

S205. The terminal G sends, to the terminal A, information indicating that the call setup request is accepted.

The terminal G confirms that the call can be established with the terminal A, and after receiving the call setup request sent by the terminal A, sends feedback information to the terminal A, that is, sends a message indicating that the call setup request is accepted.

It should be noted that the terminal G sends the information indicating that the call setup request is accepted to the terminal A through the current time slot, that is, the slot A of the common channel sends the call setup request information to the terminal G through the time slot of the common channel. Then, the terminal G transmits information indicating that the call setup request is accepted to the terminal A through the same time slot. For example, assuming that the terminal A sends a call setup request to the terminal G through the first time slot of the common channel, the terminal G also transmits information indicating the acceptance of the call setup request to the terminal A through the first time slot of the common channel.

It should be noted that, in the processing of the foregoing steps S201 to S205, the terminal A transmits the call request information including the private channel information to the terminal G, and in the process, the terminal A informs the terminal G to establish the private channel of the call. The information is such that both terminal A and terminal G determine private channel information for establishing a call, respectively. After both the terminal A and the terminal G determine the private channel information, the subsequent operation of establishing a call on the private channel can be performed to implement separate call setup. It can be said that the private channel for establishing a call is determined between the terminal A and the terminal G, which is a necessary premise for the terminal A and the terminal G to establish a call.

Another achievable way is that the terminal G informs the terminal A of the private channel information used to establish the call. In this implementation manner, when the terminal A needs to establish a call with the terminal G, the terminal A directly sends the call setup request information to the terminal G without carrying the private channel information. Correspondingly, when receiving the call setup request information sent by the terminal A, the terminal G sends the response information to the terminal A, and carries the private channel information for establishing the call to inform the terminal A which private channel should be used to establish the call. That is, in this implementation manner, the foregoing step S202 is specifically that the terminal A sends the call setup request information to the terminal G through the first time slot of the common channel of the CH1; the foregoing step S203 is specifically that the terminal A passes the common channel of the CH1. The second time slot sends the call setup request information to the terminal G. Correspondingly, the foregoing step S205 specifically sends the terminal G to the terminal A to send the information indicating the accepted call setup request including the private channel information.

S206. The terminal G jumps to the private channel sent by the terminal A.

The terminal G accepts the private call setup request sent by the terminal A, and has parsed the private channel information from the call setup request information sent by the terminal A, or informs the terminal A of the private channel information, switches the channel, and jumps to the private channel.

S207. The terminal A receives the information sent by the terminal G to indicate that the call setup request is accepted.

Further, when the terminal A does not send the private channel information to the terminal G in advance through the step S202 or the step S203, the information received by the terminal A to represent the call setup request is further included in the step S207, and the private channel information is further included. A determines on which private channel the call should be established.

S208. The terminal A jumps to the private channel.

After receiving the information sent by the terminal G to indicate that the private call setup request is accepted, the terminal A switches. The channel, jumps to the above private channel.

S209. The terminal A sends a call setup request to the terminal G by using a private channel.

After the terminal A jumps to the private channel, it sends a call setup request to the terminal G through the private channel according to the identification information of the terminal G known in advance.

S210. The terminal G receives a call setup request sent by the terminal A through the private channel, and sends information indicating that the call setup request is accepted to the terminal A.

After the terminal G jumps to the private channel, when the terminal A sends a call setup request, the terminal G can receive the call setup request. At the same time, after receiving the call setup request, the terminal G accepts the call setup request and sends information indicating that the call setup request is accepted to the terminal A.

It should be noted that when the terminal establishes a call on the private channel, the terminal may also establish a call by means of no answer. That is, after the terminal A sends a call setup request to the terminal G, the terminal G accepts the call setup request, directly establishes a private call with the terminal A, and starts private communication with the terminal A, and does not need to reply to the terminal A with information indicating that the call setup request is accepted. Specifically, after receiving the call setup request, the terminal responds, and the user sets the terminal by using the frequency writing software. When the terminal G that implements the technical solution of the embodiment of the present invention is set to establish a call by using a non-response mode, in step S210, after receiving the call setup request sent by the terminal A, the terminal G directly establishes a call with the terminal A, and does not need to Terminal A sends a reply message.

S211. The terminal A receives the information that is sent by the terminal G and represents the acceptance of the call setup request, and establishes a private call with the terminal G.

The terminal A establishes a call with the terminal G after receiving the information sent by the terminal G through the private channel to characterize the acceptance of the call setup request. As shown in FIG. 3, at this time, the terminal A and the terminal G establish a call on the private channel other than the common channel of CH1.

Correspondingly, referring to the description in step S210, if the terminal G is set to establish a call by using a non-response mode, in step S211, the terminal A does not receive the information sent by the terminal G to represent the accept call setup request, but directly Establish a private call with terminal G.

S212. When the terminal A sends the call information to the terminal G, or the terminal G sends the call information to the terminal A, the terminal A and the terminal G start timing respectively.

If the terminal A does not receive the call information sent by the terminal G during the suspension duration stored in the terminal A, and the terminal A does not send the call information to the terminal G again, the terminal A performs step S213 and jumps to the through group. Calling the common channel of CH1;

At the same time, if the terminal G does not receive the call information sent by the terminal A during the suspension duration of the terminal G storage, and the terminal G does not send the call information to the terminal A again, the terminal G performs step S213 and jumps to The through group calls the common channel of CH1.

Specifically, after the terminal A sends the call information to the terminal G, or the terminal A receives the group call information sent by the terminal G, the terminal A enters the suspended state, and if the suspension state ends, the terminal G receives the transmission. Calling the information, or sending the call information to the terminal G again, the terminal A and the terminal G maintain the established call; if the terminal A does not receive the call information sent by the terminal G during the end of the suspended state, and the terminal A does not return to the terminal again G sends the call information, and the terminal A jumps back to the common channel of the direct group call CH1 where the original is located.

Correspondingly, when the terminal G sends the call information to the terminal A, or the terminal G receives the group call information sent by the terminal A, the terminal G enters the suspended state. If the terminal G receives the terminal A, the terminal G receives the terminal A. Call information, or the terminal G sends the call information to the terminal A again, and the terminal G maintains the established call with the terminal A; if the terminal G does not receive the call information sent by the terminal A during the end of the suspended state, and the terminal G does not have When the call information is sent to the terminal A again, the terminal G jumps back to the common channel of the direct group call CH1 where the original one is located.

As can be seen from the above process, in the technical solution of the embodiment of the present invention, the terminal A and the terminal G firstly communicate with each other through the common channel, and mutually confirm the information of the private channel, and then both the terminal A and the terminal G jump to the confirmed private channel to establish a call. . The established call will not be affected by the group call, and will not be interrupted by the group call, and the communication effect is better.

4 is a schematic structural diagram of a call setup apparatus according to an embodiment of the present invention. The apparatus is applied to a first terminal, and includes: a channel confirming unit 401, configured to determine information about a private channel used to establish a call; The private channel is an idle channel different from the common channel; the call establishing unit 402 is configured to establish a call with the second terminal by using the private channel.

For details, refer to the content of the embodiment of the corresponding call setup method, and details are not described herein again.

FIG. 5 is a schematic structural diagram of another call establishing apparatus according to an embodiment of the present invention. The apparatus is applied to a first terminal, and includes: a first memory 501 and a first processor 502; wherein the first memory 501 and the The first processor 502 is connected to store data generated in a program and a program; the first processor 502 is configured to run a program in the first memory 501 to implement the following functions: when needed and a common channel When the second terminal in the call is established, the private channel for establishing the call is determined. Information; wherein the private channel is an idle channel different from the common channel; a call is established with the second terminal over the private channel.

Specifically, for the specific working content of the various parts of the call setup apparatus shown in FIG. 5, refer to the content of the embodiment of the corresponding private call setup method, and details are not described herein again.

FIG. 6 is a schematic structural diagram of another call setup apparatus according to an embodiment of the present invention. The apparatus is applied to a second terminal, and includes: an operation response unit 601, configured to determine, according to the first terminal, a private used to establish a call. The operation of the information of the channel; the processing unit 602, configured to establish a call with the first terminal by using the private channel.

For details, refer to the content of the embodiment of the corresponding private call setup method, and details are not described herein again.

FIG. 7 is a schematic structural diagram of another call setup apparatus according to an embodiment of the present invention. The apparatus is applied to a second terminal, including: a second memory 701 and a second processor 702; wherein the second memory 701 and the The second processor 702 is connected to store the program and the data generated during the running of the program. The second processor 702 is configured to run the program in the second memory 701 to implement the following functions: executing in response to the first terminal An operation of determining information for establishing a private channel of a call; establishing, by the private channel, a call with the first terminal.

For details, refer to the content of the embodiment of the corresponding private call setup method, and details are not described herein again.

The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments are obvious to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but the scope of the invention is to be accorded

Claims (22)

A method for establishing a call, which is applied to a first terminal, and the method includes: Determining information of a private channel used to establish a call when it is required to establish a call with a second terminal in the common channel; wherein the private channel is an idle channel different from the common channel; Establishing a call with the second terminal over the private channel. The method of claim 1, wherein the determining the information of the private channel used to establish the call comprises: Sending call setup request information to the second terminal through the common channel; Receiving information including the private channel information sent by the second terminal to represent the call setup request. The method of claim 1, wherein the determining the information of the private channel used to establish the call comprises: Sending call setup request information including private channel information to the second terminal through the common channel; Receiving, by the second terminal, information indicating that the call setup request is accepted. The method according to claim 1, wherein the establishing a call with the second terminal by using the private channel comprises: Jumping from the common channel to the private channel; Sending a call setup request to the second terminal by using the private channel; Receiving, by the second terminal, information indicating that the call setup request is accepted, and establishing a call with the second terminal. The method according to claim 1, wherein the first terminal further stores the suspension duration information; after the first terminal establishes a call with the second terminal by using the private channel, the method further includes: When the sending of the call information to the second terminal ends, or when the receiving of the call information sent by the second terminal ends, the timing is started; If the call information sent by the second terminal is not received during the duration of the suspension, and the call information is not sent to the second terminal again, jump to the public message Road. The method according to claim 3, wherein the transmitting the private call setup request information including the private channel information to the second terminal by using the common channel comprises: Detecting whether the first time slot in the current common channel is occupied; And if the first time slot in the common channel is not occupied, transmitting private call setup request information including private channel information to the second terminal by using the first time slot in the common channel; If the first time slot in the common channel is occupied, private call setup request information including private channel information is transmitted to the second terminal through the second time slot in the common channel. A method for establishing a call, which is applied to a second terminal, the method comprising: Responding to an operation performed by the first terminal to determine information for establishing a private channel of the call; Establishing a call with the first terminal over the private channel. The method according to claim 7, wherein the operation of determining, by the first terminal, information for establishing a private channel of the call comprises: Receiving, by the first terminal, call setup request information including information of the private channel, which is sent by using the common channel; Information indicating that the call setup request is accepted is sent to the first terminal. The method according to claim 7, wherein the operation of determining, by the first terminal, information for establishing a private channel of the call comprises: Receiving call setup request information sent by the first terminal through the common channel; Transmitting, to the first terminal, information containing private channel information that characterizes accepting the call setup request. The method according to claim 7, wherein the second terminal stores the suspension duration information; after the second terminal establishes a call with the first terminal by using the private channel, the method further includes: When the sending of the call information to the first terminal ends, or when the receiving of the call information sent by the first terminal ends, the timing is started; If the time period reaches the suspension duration, the first terminal does not receive the transmission Calling the information and not transmitting the call information to the first terminal again, then jumping to the common channel. A call establishing apparatus, which is applied to a first terminal, the apparatus comprising: a channel confirming unit, configured to determine information of a private channel used to establish a call; wherein the private channel is an idle channel different from the common channel; a call establishing unit, configured to establish a call with the second terminal by using the private channel. The device according to claim 11, wherein the channel confirmation unit comprises: An information sending unit, configured to send call setup request information to the second terminal by using the common channel; And an information receiving unit, configured to receive, by the second terminal, the information that includes the private channel information, and that indicates that the call setup request is accepted. The device according to claim 12, wherein the information sending unit is further configured to send, by using the common channel, call setup request information including private channel information to the second terminal; Correspondingly, the information receiving unit is further configured to receive, by the second terminal, information indicating that the call setup request is accepted. The device according to claim 13, wherein when the information sending unit sends the private call setup request information including the private channel information to the second terminal by using the common channel, the information sending unit is specifically configured to: Detecting whether a first time slot in the common channel is currently occupied; if the first time slot in the common channel is not occupied, sending the first time slot in the common channel to the second terminal Private call setup request information including private channel information; if the first time slot in the common channel is occupied, transmitting a private call setup containing private channel information to the second terminal through the second time slot in the common channel Request information. A call establishing apparatus, which is applied to a second terminal, the apparatus comprising: An operation response unit, configured to respond to an operation performed by the first terminal to determine information for establishing a private channel of the call; And a processing unit, configured to establish a call with the first terminal by using the private channel. The apparatus according to claim 15, wherein said operation response unit, said package include: a request receiving unit, configured to receive call setup request information that includes information of a private channel that is sent by the first terminal through a common channel; And a response sending unit, configured to send, to the first terminal, information indicating that the call setup request is accepted. The device according to claim 16, wherein the request receiving unit is further configured to: receive call setup request information sent by the first terminal through a common channel; Correspondingly, the response sending unit is further configured to send, to the first terminal, information that includes private channel information, and that represents the call setup request. A call establishing apparatus, which is applied to a first terminal, the apparatus comprising: a first memory and a first processor; The first memory is connected to the first processor, and is configured to store data generated by a program and a program running; The first processor is configured to run a program in the first memory to implement the following functions: Determining information of a private channel used to establish a call when a call needs to be established with a second terminal in the common channel; wherein the private channel is an idle channel different from the common channel; The second terminal establishes a call. The apparatus according to claim 18, wherein said first processor is further configured to: store suspended duration information; after establishing a call with said second terminal through said private channel, when said When the second terminal sends the call information to end, or receives the call information sent by the second terminal, the time starts; if the time period reaches the suspension period, the call information sent by the second terminal is not received, and If the call information is not sent to the second terminal again, then the common channel is jumped. The device according to claim 18, wherein when the first processor establishes a call with the second terminal by using the private channel, specifically: Jumping from the common channel to the private channel; transmitting, by the private channel, a call setup request to the second terminal; receiving, by the second terminal, information indicating that the call setup request is accepted, and The second terminal establishes a private call. A call establishing apparatus, which is applied to a second terminal, the apparatus comprising: a second memory and a second processor; The second memory is connected to the second processor for storing data generated by the program and the running of the program; The second processor is configured to run a program in the second memory to implement the following functions: And responsive to the operation performed by the first terminal to determine information for establishing a private channel of the call; establishing, by the private channel, a call with the first terminal. The device according to claim 21, wherein the second processor is further configured to: Storing the suspension duration information; after the call is established with the first terminal through the private channel, when the sending of the call information to the first terminal ends, or the reception of the call information sent by the first terminal ends, Timing; if the call information sent by the first terminal is not received during the duration of the suspension, and the call information is not sent to the first terminal again, jump to the common channel.

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