CN117880409A

CN117880409A - Communication method, device, chip and storage medium

Info

Publication number: CN117880409A
Application number: CN202410268759.1A
Authority: CN
Inventors: 薛子涛
Original assignee: Honor Device Co Ltd
Current assignee: Honor Device Co Ltd
Priority date: 2024-03-11
Filing date: 2024-03-11
Publication date: 2024-04-12

Abstract

The embodiment of the application provides a communication method, a communication device, a chip and a storage medium. The method comprises the following steps: the first terminal device sends first indication information for indicating at least one dual-tone multi-frequency information transmission mode supported by the first terminal device to the network device. The network equipment acquires a second DTMF information transmission mode of the second terminal equipment. The network device sends second indication information to the first terminal device, the second indication information is used for indicating a target dual-tone multi-frequency information transmission mode, the target dual-tone multi-frequency information transmission mode is used for transmitting dual-tone multi-frequency information between the first terminal device and the second terminal device, and the target dual-tone multi-frequency information transmission mode is the same as the second dual-tone multi-frequency information transmission mode of the second terminal device in the first dual-tone multi-frequency information transmission mode. Thus, the problem of abnormal key input recognition can be reduced by reducing the case that the second terminal device cannot recognize the DTMF information from the first terminal device.

Description

Communication method, device, chip and storage medium

Technical Field

The present disclosure relates to the field of terminal technologies, and in particular, to a communication method, a device, a chip, and a storage medium.

Background

Dual-Tone Multi-Frequency (DTMF) is an audio coding scheme, and is mainly used for signal transmission in telephone systems and communication devices. In telephone systems, DTMF technology is mainly used for key input recognition. When a user presses a key on the telephone keypad, a corresponding pair of DTMF tones will be sent onto the telephone line. The receiving device determines the key pressed by detecting and decoding these tone pairs. In this way, the user can be supported to perform various operations such as dialing a number, making a menu selection, and the like. However, in the case of key input recognition by DTMF technology, there is a problem of abnormal recognition.

In view of this, how to reduce the anomalies that occur when DTMF technology is used for key input recognition is a problem that needs to be addressed.

Disclosure of Invention

The embodiment of the application provides a communication method, a device, a chip and a storage medium, which are applied to the technical field of terminals and are used for reducing the abnormality of the DTMF technology when the DTMF technology is used for key input identification.

In a first aspect, an embodiment of the present application proposes a communication method, applied to a first terminal device, where the method includes:

transmitting first indication information to network equipment, wherein the first indication information is used for indicating at least one dual-tone multi-frequency information transmission mode supported by the first terminal equipment;

Receiving second indication information from the network device, where the second indication information is used to indicate a target dual-tone multi-frequency information transmission mode, where the target dual-tone multi-frequency information transmission mode is used to transmit dual-tone multi-frequency information between the first terminal device and the second terminal device, and the target dual-tone multi-frequency information transmission mode is the same transmission mode in the first dual-tone multi-frequency information transmission mode and the second dual-tone multi-frequency information transmission mode of the second terminal device.

Optionally, the first indication information is capability information of the first terminal device, where the capability information is used to indicate a dual-tone multi-frequency information transmission mode supported by the first terminal device.

Optionally, the capability information carries an identifier of the first dual-tone multi-frequency information transmission mode.

Optionally, the first indication information is session invitation information of calling the second terminal device, and the second indication information is session invitation response information from the network device;

the method further comprises the steps of:

and after the call between the first terminal equipment and the second terminal equipment is established, transmitting the dual-tone multi-frequency information with the second terminal equipment through the target dual-tone multi-frequency information transmission mode.

Optionally, the method further comprises:

and receiving call establishment confirmation information from the network equipment, wherein the call establishment confirmation information is used for indicating that the call establishment between the first terminal equipment and the second terminal equipment is completed.

Optionally, the dual-tone multi-frequency information transmission mode includes at least one of the following: transmission by dual tone multi frequency signaling, transmission by session description protocol, transmission by voice signal.

In a second aspect, an embodiment of the present application provides a communication method, applied to a network device, where the method includes:

receiving first indication information from first terminal equipment, wherein the first indication information is used for indicating the first terminal equipment to support at least one dual-tone multi-frequency information transmission mode;

acquiring a second DTMF information transmission mode of second terminal equipment, wherein the second terminal equipment supports at least one DTMF information transmission mode;

and sending second indication information to the first terminal equipment, wherein the second indication information is used for indicating a target dual-tone multi-frequency information transmission mode, the target dual-tone multi-frequency information transmission mode is used for transmitting dual-tone multi-frequency information between the first terminal equipment and the second terminal equipment, and the target dual-tone multi-frequency information transmission mode is the same as the second dual-tone multi-frequency information transmission mode of the second terminal equipment in the first dual-tone multi-frequency information transmission mode.

Optionally, the first indication information is session invitation information of calling the second terminal device, and the second indication information is session invitation response information from the network device.

Optionally, the acquiring the second dual-tone multi-frequency information transmission mode of the second terminal device includes:

transmitting third indication information to the second terminal equipment, wherein the third indication information is used for indicating the second terminal equipment to report the second DTMF information transmission mode;

and receiving a second DTMF information transmission mode sent by the second terminal equipment.

and acquiring a second DTMF information transmission mode corresponding to the identifier of the second terminal equipment according to the identifier of the second terminal equipment and the mapping relation between the identifier of the terminal equipment and the DTMF information transmission mode.

In a third aspect, an embodiment of the present application provides a communication apparatus, applied to a first terminal device, where the apparatus includes:

the sending module is used for sending first indication information to the network equipment, wherein the first indication information is used for indicating at least one dual-tone multi-frequency information transmission mode supported by the first terminal equipment;

the receiving module is configured to receive second indication information from the network device, where the second indication information is used to indicate a target dual-tone multi-frequency information transmission mode, where the target dual-tone multi-frequency information transmission mode is used to transmit dual-tone multi-frequency information between the first terminal device and the second terminal device, and the target dual-tone multi-frequency information transmission mode is the same transmission mode in the first dual-tone multi-frequency information transmission mode and the second dual-tone multi-frequency information transmission mode of the second terminal device.

In a fourth aspect, an embodiment of the present application provides a communication apparatus, applied to a network device, where the apparatus includes:

The receiving module is used for receiving first indication information from first terminal equipment, wherein the first indication information is used for indicating the first terminal equipment to support at least one DTMF information transmission mode;

the acquisition module is used for acquiring a second DTMF information transmission mode of second terminal equipment, wherein the second terminal equipment supports at least one DTMF information transmission mode;

the sending module is used for sending second indication information to the first terminal equipment, the second indication information is used for indicating a target dual-tone multi-frequency information transmission mode, the target dual-tone multi-frequency information transmission mode is used for transmitting dual-tone multi-frequency information between the first terminal equipment and the second terminal equipment, and the target dual-tone multi-frequency information transmission mode is the same transmission mode in the first dual-tone multi-frequency information transmission mode and the second dual-tone multi-frequency information transmission mode of the second terminal equipment.

In a fifth aspect, embodiments of the present application provide a communication apparatus, the apparatus including: a processor, transceiver, and memory; the processor is respectively in communication connection with the transceiver and the memory;

the memory stores computer-executable instructions;

The transceiver performs communication interaction with external equipment;

the processor executes computer-executable instructions stored by the memory to implement the method of any one of the first or second aspects.

In a sixth aspect, embodiments of the present application provide a chip on which a computer program is stored, which, when executed by the chip, implements a method according to any one of the first aspect or any one of the second aspect.

In a seventh aspect, embodiments of the present application provide a computer readable storage medium storing a computer program, which when executed by a processor implements a method according to any one of the first aspect or the second aspect.

In an eighth aspect, embodiments of the present application provide a computer program product comprising a computer program which, when run, causes a computer to perform the method of any one of the first aspect or the second aspect.

According to the communication method, the device, the chip and the storage medium, before a network device is connected with a call, a target DTMF information transmission mode is determined according to a first DTMF information transmission mode supported by a first terminal device and a second DTMF information transmission mode supported by a second terminal device, so that the first terminal device is instructed to transmit DTMF information according to the target DTMF information transmission mode, the situation that the second terminal device cannot identify the DTMF information from the first terminal device is reduced, and the problem of abnormal key input identification is solved.

Drawings

Fig. 1 is a schematic structural diagram of a communication system provided in the present application;

fig. 2 is a schematic flow chart of a communication method according to an embodiment of the present application;

fig. 3 is a flow chart of another communication method according to an embodiment of the present application;

fig. 4 is a flow chart of another communication method according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of another communication device according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of another communication device according to an embodiment of the present application.

Detailed Description

For purposes of clarity in describing the embodiments of the present application, in the embodiments of the present application, words such as "exemplary" or "such as" are used to indicate by way of example, illustration, or description. Any embodiment or design described herein as "exemplary" or "for example" should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.

In the embodiments of the present application, "at least one" means one or more, and "a plurality" means two or more. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a alone, a and B together, and B alone, wherein a, B may be singular or plural. The character "/" generally indicates that the context-dependent object is an "or" relationship. "at least one of" or the like means any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one (one) of a, b, or c may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or plural.

The term "at … …" in the embodiment of the present application may be instantaneous when a certain situation occurs, or may be a period of time after a certain situation occurs, which is not particularly limited in the embodiment of the present application. In addition, the display interface provided in the embodiments of the present application is merely an example, and the display interface may further include more or less content.

For ease of understanding, the structure of the communication system to which the present application relates will first be described.

Fig. 1 is a schematic structural diagram of a communication system provided in the present application. As shown in fig. 1, the communication system includes a first terminal device, a network device, and a second terminal device.

The first terminal equipment is a telephone calling party, and the second terminal equipment is a telephone called party. The first terminal device and the second terminal device may be telephone terminals (e.g. landline telephones, mobile phones, etc.) or private branch exchanges. The network device may be a session initiation protocol (Session Initiation Protocol, SIP) server, which may be, for example, a server of a telephone operator, a telephone exchange or the like, for transmitting telephone signals of the first terminal device to the second terminal device. The network form adopted in the communication system is not limited in the application, and any network form can be used as long as the network form can support the DTMF technology to carry out telephone service.

When telephone service is performed through the communication system, there is a telephone service related to the key input recognition requirement. For example, in the fields of telephone call systems, banking automatic voice response systems, voice mail systems, etc., digital and special character information such as dialing telephone numbers, operating voice menus, etc., is transmitted when a user interacts with a communication system through a key input recognition technique.

At present, key input identification in telephone service is mainly realized by DTMF technology. The implementation process of the existing DTMF technology is as follows:

when a key is required to input a number or a special character, the first terminal device responds to an input operation of a user (for example, the user presses a corresponding key), and generates a DTMF signal corresponding to the number or the special character according to the code of the key. The DTMF signal is formed by superimposing two audio signals of different frequencies, one representing a line number (high frequency signal) and the other representing a column number (low frequency signal). The frequencies of these audio signals are predefined and each key has a unique frequency combination.

The DTMF signal generated by the first terminal device is transmitted to the network device via the telephone line. Such as DTMF signals, may be transmitted to network devices through routers, switches, etc., to ensure stable transmission of signals. The network device forwards the DTMF signal to the second terminal device.

The second terminal device receives and decodes the DTMF signal to recognize the digits and special characters input by the user through the first terminal device. In the decoding process, the second terminal device detects the frequency combination of the received audio signal and converts it into corresponding digital or character information. And the second terminal equipment performs corresponding processing, such as establishing call connection, playing voice prompt, executing operation requested by a user and the like, according to the decoded digital or character information.

The following describes several implementations of DTMF techniques at present:

1. transmitted by dual tone multi-frequency signaling.

I.e. DTMF data is transmitted via the SIP signaling channel. The information of the DTMF signals is encapsulated in a session initiation protocol information (Session Initiation Protocol Information Message, SIP INFO) message and the different DTMF signals are identified by signal fields. SIP INFO does not affect the transmission of Real-time transport protocol (Real-time Transport Protocol, RTP) packets and therefore does not interfere with the transmission of voice data. However, since this approach relies on SIP signaling channels, it may lead to problems with dyssynchrony between DTMF signals and voice data.

2. Transmitted via session description protocol (Session Description Protocol, SDP).

I.e., telephone Event (Telephony-Event) mode. This approach uses a predefined DTMF format to transmit DTMF data after SDP negotiation. For example, DTMF signals may be encapsulated in special RTP packets that are identified using a Telephone event payload type (Telephone-Event payload type). Wherein, the same DTMF message usually corresponds to multiple RTP packets with the same time stamp, which is used as a basis for identifying the same key. The method can synchronously transmit the DTMF signal and the voice data, thereby avoiding the possible asynchronous problem in the SIP INFO method. However, since this approach requires embedding DTMF signals in RTP packets, it may have some effect on the transmission of RTP packets.

3. Transmitted by voice signals.

I.e. DTMF signals are transmitted as speech content. In this implementation, DTMF signals would be recorded directly into the voice data and transmitted along with the voice data. At the receiving end (i.e. the second terminal device) such special signals can be detected by digital signal processing (Digital Signal Processing, DSP) techniques and decoded into corresponding DTMF data by spectral analysis. This approach does not require an additional signaling channel to transmit the DTMF signal, however, since the DTMF signal is directly embedded into the voice data, it may have a certain influence on the voice quality, and the receiving end needs to have a corresponding DSP processing capability to decode the DTMF signal.

However, in the current implementation of key input recognition in telephone service by DTMF technology, there is a problem of recognition abnormality. For example, the user operates the first terminal device to perform the key input according to the prompt, but since the DTMF mode supported by the first terminal device is different from the DTMF mode supported by the second terminal device (for example, the first terminal device supports transmitting DTMF signals through SIP INFO and text-Event and the second terminal device supports transmitting DTMF signals through text-Event and voice data), and the first terminal device transmits DTMF signals in a mode not supported by the second terminal device (for example, the first terminal device transmits DTMF signals through SIP INFO and the second terminal device does not support SIP INFO), the second terminal device cannot recognize the DTMF signals after the network device forwards the DTMF signals from the first terminal device to the second terminal device, thereby causing a problem of abnormal key input recognition.

Or, because the user operates the first terminal device to input the key prematurely, before the first terminal device does not determine the actual DTMF information transmission mode of the second terminal device, the DTMF information is transmitted according to the DTMF information transmission mode supported by the first terminal device, which results in the problem of abnormal recognition of the key input.

In view of this, the present application provides a communication method, by determining, by a network device, a target DTMF information transmission manner according to a DTMF information transmission manner supported by a first terminal device and a DTMF information transmission manner supported by a second terminal device before a call is connected, so as to instruct the first terminal device to transmit DTMF information according to the target DTMF information transmission manner, so as to reduce a case that the second terminal device cannot identify a DTMF signal from the first terminal device, and reduce a problem of abnormal recognition of a key input.

The following describes the technical solutions of the present application and how the technical solutions of the present application solve the above technical problems in detail with specific embodiments. The following embodiments may be implemented independently or combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments.

Fig. 2 is a flow chart of a communication method according to an embodiment of the present application. As shown in fig. 2, the method may include:

s201, the first terminal equipment sends first indication information to the network equipment.

Correspondingly, the network equipment receives first indication information sent by the first terminal equipment.

The first indication information is used for indicating at least one dual-tone multi-frequency information transmission mode supported by the first terminal equipment. The first indication information may be sent by the first terminal device to the network device through a separate signaling, or may be carried in session invitation information received by the network device and sent by the first terminal device to call the second terminal device.

Optionally, the at least one dual tone multi-frequency information transmission mode supported by the first terminal device includes at least one of the following: transmission by dual tone multi frequency signaling, transmission by session description protocol, transmission by voice signal. It should be understood that the dual-tone multi-frequency information transmission modes referred to in the present application may include not only three of the above examples, but also other dual-tone multi-frequency information transmission modes, which are not limited in this application.

One possible implementation manner, the first indication information is indication information indicating capability information of the first terminal device. The capability information of the first terminal device includes at least one dual tone multi-frequency information transmission mode supported by the first terminal device. For example, the first indication information is an identifier of the capability information, and a plurality of types of capability information are preset in the network device, and a mapping relationship between the plurality of types of capability information and the identifier of the capability information. The network device may determine capability information of the first terminal device according to the first indication information and the mapping relation between the multiple capability information and the identifier of the capability information, and determine at least one dual tone multi-frequency information transmission mode supported by the first terminal device from the capability information of the first terminal device.

In another possible implementation manner, the first indication information is capability information of the first terminal device. The capability information is used for indicating a dual-tone multi-frequency information transmission mode supported by the first terminal equipment. The network device may extract the content of the first indication information, and obtain the capability information of the first terminal device, so as to determine at least one dual-tone multi-frequency information transmission mode supported by the first terminal device according to the capability information. For example, the capability information includes an identifier of a dual-tone multi-frequency information transmission mode supported by the first terminal device, and the network device may determine the dual-tone multi-frequency information transmission mode supported by the first terminal device according to the identifier.

S202, the network equipment acquires a second DTMF information transmission mode of the second terminal equipment.

The second terminal equipment supports at least one dual-tone multi-frequency information transmission mode. The at least one dual-tone multi-frequency information transmission mode supported by the second terminal equipment comprises at least one of the following: transmission by dual tone multi frequency signaling, transmission by session description protocol, transmission by voice signal. It should be understood that the dual-tone multi-frequency information transmission modes referred to in the present application may include not only three of the above examples, but also other dual-tone multi-frequency information transmission modes, which are not limited in this application.

One possible implementation manner may be that the network device extracts, according to a second terminal device called by the first terminal device, a dual-tone multi-frequency information transmission manner supported by the second terminal device (i.e., a second dual-tone multi-frequency information transmission manner) from pre-stored dual-tone multi-frequency information transmission manners supported by the terminal device. For example, the network device may extract, according to the identifier of the second terminal device, the dual-tone multi-frequency information transmission mode supported by the second terminal device from the pre-stored dual-tone multi-frequency information transmission modes supported by the terminal device.

In another possible implementation manner, the network device may acquire the second dual-tone multi-frequency information transmission manner of the second terminal device through a manner of interacting with the second terminal device. For example, the network device may request the second terminal device to report the second dtmf information transmission mode, or the second terminal device actively reports the second dtmf information transmission mode. When the second terminal device actively reports the second dual-tone multi-frequency information transmission mode, the second terminal device can periodically report the second dual-tone multi-frequency information transmission mode to the network device.

S203, the network equipment sends second indication information to the first terminal equipment.

Correspondingly, the first terminal device receives the second indication information from the network device.

The second indication information is used for indicating a target DTMF information transmission mode. The target dual-tone multi-frequency information transmission mode is used for transmitting dual-tone multi-frequency information between the first terminal equipment and the second terminal equipment. The target dual-tone multi-frequency information transmission mode is the same as the second dual-tone multi-frequency information transmission mode of the second terminal equipment in the first dual-tone multi-frequency information transmission mode.

For example, the first dual-tone multi-frequency information transmission mode supported by the first terminal device is dual-tone multi-frequency signaling transmission and session description protocol transmission, and the second dual-tone multi-frequency information transmission mode supported by the second terminal device is session description protocol transmission and voice signal transmission, and then the target dual-tone multi-frequency information transmission mode is session description protocol transmission.

One possible implementation manner, the network device sends the second indication information to the first terminal device through dedicated signaling.

In another possible implementation manner, the network device carries the second indication information in session invitation response information, and sends the second indication information to the first terminal device, where the session invitation response information is response information of session invitation information for the first terminal device to call the second terminal device.

Optionally, the second indication information may directly indicate the target dtmf information, for example, the second indication information may include an identifier of the target dtmf information transmission mode, for example, include a serial number of the target dtmf information transmission mode, or include a name of the target dtmf information transmission mode, etc. Alternatively, the second indication information may indirectly indicate the target dual tone multi-frequency information transmission manner.

When the second indication information indirectly indicates the target dual tone multi-frequency information transmission mode, for example, the second indication information may include an identification of the second dual tone multi-frequency information transmission mode. And the first terminal equipment acquires a second DTMF information transmission mode according to the second indication information. And then, the first terminal equipment determines a target DTMF information transmission mode according to the first DTMF information transmission mode and the second DTMF information transmission mode.

After the first terminal equipment receives the second indication information from the network equipment, DTMF information is transmitted in a target DTMF information transmission mode indicated by the second indication information, so that numbers or special characters input by a user operating the first terminal equipment are transmitted to the second terminal equipment, and a process of key input identification is realized.

According to the method provided by the embodiment of the application, the target DTMF information transmission mode is determined according to the first DTMF information transmission mode supported by the first terminal equipment before the network equipment is connected with the call and the second DTMF information transmission mode supported by the second terminal equipment, so that the first terminal equipment is instructed to transmit the DTMF information according to the target DTMF information transmission mode, the situation that the second terminal equipment cannot identify the DTMF information from the first terminal equipment is reduced, and the problem of abnormal key input identification is solved.

Next, the communication method provided in the present application is introduced by taking the first indication information as session invitation information for calling the second terminal device, the second indication information is session invitation response information from the network device, and the network device acquires the second dtmf information transmission mode by interacting with the second terminal device, where the second indication information includes an identifier of the second dtmf information transmission mode as an example.

Fig. 3 is a flow chart of another communication method according to an embodiment of the present application. As shown in fig. 3, the method may include:

s301, the first terminal device sends session invitation information to the network device.

Correspondingly, the network device receives the session invitation information sent by the first terminal device.

The session invitation information sent by the first terminal device includes a first dual-tone multi-frequency transmission mode. For example, the first dual tone multi-frequency transport is contained in a session description protocol (Session Description Protocol, SDP) in the session invite message. For example, if the first dual-tone multi-frequency transmission mode supported by the first terminal device is transmission through session description protocol and transmission through voice signals, the following information may be included in SDP:

a=fmtp:100 telephone-event;q=0.7

a=fmtp:101 inband

wherein a=fmtp: 100 text-event characterization supports transmission of DTMF information via a session description protocol, text-event being an identification transmitted via the session description protocol. a=fmtp: 101 in band representation supports DTMF information transmission by voice signals, in band being the identification transmitted by voice signals. q=0.7 characterizes the priority of DTMF information transfer via the session description protocol, with q parameter values ranging from 0 to 1, where 1 represents the highest priority.

S302, the network equipment sends third indication information to the second terminal equipment.

Correspondingly, the second terminal device receives the third indication information sent by the network device.

The third indication information is used for indicating the second terminal equipment to report the second DTMF information transmission mode.

Before responding to the session invitation information sent by the first terminal device, the network device sends third indication information to the second terminal device so as to acquire a second DTMF information transmission mode of the second terminal device.

The specific form of the third indication information is not limited in the present application, and any indication information may be used as long as the second indication information can indicate the second terminal device to report the second dtmf information transmission mode.

S303, the second terminal equipment sends a second DTMF information transmission mode to the network equipment.

Correspondingly, the network equipment receives a second DTMF information transmission mode sent by the second terminal equipment.

In one possible implementation manner, the second terminal device sends the identifier of the second dual-tone multi-frequency information transmission mode to the network device, and the network device may obtain the second dual-tone multi-frequency information transmission mode corresponding to the identifier of the second terminal device according to the identifier of the second terminal device and the mapping relationship between the identifier of the terminal device and the dual-tone multi-frequency information transmission mode.

In another possible implementation manner, the second terminal device directly sends the second dual-tone multi-frequency information transmission manner to the network device.

S304, the network equipment sends session invitation response information to the first terminal equipment.

Correspondingly, the first terminal equipment receives the session invitation response information sent by the network equipment.

The session invitation response information includes a second dual-tone multi-frequency information transmission mode. The second dual-tone multi-frequency transmission manner may also be included in the SDP in the session invite response message, which is similar to the method in which the first dual-tone multi-frequency information transmission manner is included in the session invite message sent by the first terminal device to the network device in step S301, and will not be described herein.

S305, the first terminal equipment determines a target DTMF information transmission mode according to the first DTMF information transmission mode and the second DTMF information transmission mode.

The first terminal equipment determines the same dual-tone multi-frequency information transmission mode as the target dual-tone multi-frequency information transmission mode in the first dual-tone multi-frequency information transmission mode and the second dual-tone multi-frequency information transmission mode according to the first dual-tone multi-frequency information transmission mode supported by the first terminal equipment and the second dual-tone multi-frequency information transmission mode received from the network equipment.

For example, if the first dual-tone multi-frequency information transmission mode supported by the first terminal device is transmission through a session description protocol, transmission through a voice signal, and the second dual-tone multi-frequency information transmission mode supported by the second terminal device is transmission through dual-tone multi-frequency signaling, transmission through the session description protocol, transmission through a voice signal, the target dual-tone multi-frequency information transmission mode may be transmission through the session description protocol or transmission through a voice signal.

Or if the first dual-tone multi-frequency information transmission mode supported by the first terminal device is transmission through a session description protocol and transmission through a voice signal, and the second dual-tone multi-frequency information transmission mode supported by the second terminal device is transmission through dual-tone multi-frequency signaling and transmission through the session description protocol, the target dual-tone multi-frequency information transmission mode may be transmission through the session description protocol.

S306, after the call between the first terminal device and the second terminal device is established, the first terminal device transmits the dual-tone multi-frequency information with the second terminal device through the target dual-tone multi-frequency information transmission mode.

After the network device sends the session invitation response information to the first terminal device, the network device establishes connection between the first terminal device and the second terminal device, and completes call establishment between the first terminal device and the second terminal device. The first terminal device transmits the dual-tone multi-frequency information to the second terminal device in a target dual-tone multi-frequency information transmission mode, so that the second terminal device can determine the number or special character and the like which the first terminal device wants to transmit.

Optionally, the first terminal device may determine that the call setup between the first terminal device and the second terminal device is completed according to the call setup confirmation information (for example, may be 200 OK message) of the network device. In this implementation, the first terminal device receives call setup confirmation information from the network device, the call setup confirmation information being used to indicate that call setup between the first terminal device and the second terminal device is complete. The first terminal equipment determines that the transmission of the dual-tone multi-frequency information with the second terminal equipment can be started through the target dual-tone multi-frequency information transmission mode according to the call establishment confirmation information.

According to the method provided by the embodiment of the application, the network equipment receives the session invitation information sent by the first terminal equipment, determines the second terminal equipment and acquires the second DTMF information transmission mode. The network equipment sends the second DTMF information transmission mode to the first terminal equipment through the session invitation response information, so that the first terminal equipment determines a target DTMF information transmission mode according to the second DTMF information transmission mode and the first DTMF information transmission mode, and transmits the DTMF information with the second terminal equipment through the target DTMF information transmission mode after the call with the second terminal equipment is established, thereby solving the problem of DTMF capability negotiation when a part of extension telephone is dialed at present, improving the success rate of DTMF operation, and simplifying the flow of DTMF capability negotiation.

In the following, the detailed flow of the present application is exemplarily described by taking the first dual-tone multi-frequency information transmission mode supported by the first terminal device as transmission through dual-tone multi-frequency signaling and transmission through session description protocol, and the second dual-tone multi-frequency information transmission mode supported by the second terminal device as transmission through dual-tone multi-frequency signaling, transmission through session description protocol and transmission through voice signal.

Fig. 4 is a flow chart of another communication method according to an embodiment of the present application. As shown in fig. 4, the method may include:

s401, the first terminal device sends session invitation information to the network device.

The session invitation information sent by the first terminal device includes a first dual-tone multi-frequency transmission mode, that is, includes transmission through dual-tone multi-frequency signaling (SIP INFO) and transmission through session description protocol (session-event).

And S402, the network equipment sends third indication information for indicating the second terminal equipment to report the second DTMF information transmission mode to the second terminal equipment.

S403, the second terminal equipment sends the second DTMF information transmission mode to the network equipment.

The second dual-tone multi-frequency information transmission mode comprises transmission through dual-tone multi-frequency signaling (SIP INFO), transmission through session description protocol (session-event) and transmission through voice signal (inband).

S404, the network device sends session invitation response information to the first terminal device.

The session invitation response information includes the identification of the second dual-tone multi-frequency information transmission mode or the second dual-tone multi-frequency information transmission mode. The second dual tone multi frequency information transmission mode includes transmission through dual tone multi frequency signaling (SIP INFO), transmission through session description protocol (session-event), and transmission through voice signal (inband).

S405, the first terminal equipment determines a target DTMF information transmission mode according to the first DTMF information transmission mode and the second DTMF information transmission mode.

The first terminal equipment determines a target DTMF information transmission mode through DTMF signaling transmission (SIP INFO) and session description protocol transmission (text-event) according to the first DTMF information transmission mode and the second DTMF information transmission mode.

S406, the network device sends the call establishment confirmation information to the first terminal device.

Correspondingly, the first terminal equipment receives the call establishment confirmation information sent by the network equipment.

After completing the establishment of the call between the first terminal device and the second terminal device, the network device sends the call establishment confirmation information. The call setup confirmation information may be a 200 OK message, which is used to enable the first terminal device to determine that the call with the second terminal device is setup.

S407, the first terminal equipment transmits the dual-tone multi-frequency information with the second terminal equipment through the target dual-tone multi-frequency information transmission mode.

Fig. 5 is a schematic structural diagram of a communication device according to an embodiment of the present application. It will be appreciated that the communications apparatus may correspond to implementing the operations or steps of the corresponding first terminal device in the foregoing method embodiments. The communication means may be the first terminal device or may be a component configurable at the first terminal device, such as a chip, a chip module or the like. As shown in fig. 5, the communication apparatus may include: a transmitting module 501 and a receiving module 502. In one possible implementation, the method further includes a processing module 503. Alternatively, the transmitting module 501 and the receiving module 502 may be integrated into the transceiver module or may be separated.

A sending module 501, configured to send first indication information to a network device, where the first indication information is used to indicate at least one dual-tone multifrequency information transmission mode supported by the first terminal device.

The receiving module 502 is configured to receive second indication information from the network device, where the second indication information is used to indicate a target dtmf information transmission mode, where the target dtmf information transmission mode is used to transmit dtmf information between the first terminal device and the second terminal device, and the target dtmf information transmission mode is the same transmission mode in the first dtmf information transmission mode and the second dtmf information transmission mode of the second terminal device.

Optionally, the first indication information is capability information of the first terminal device, where the capability information is used to indicate a dual tone multi-frequency information transmission mode supported by the first terminal device.

Optionally, the capability information carries an identifier of the first dtmf information transmission mode.

Optionally, if the first indication information is session invitation information for calling the second terminal device, the second indication information is session invitation response information from the network device, and the sending module 501 is further configured to transmit dual-tone multi-frequency information with the second terminal device through the target dual-tone multi-frequency information transmission mode after the call between the first terminal device and the second terminal device is established.

Optionally, the receiving module 502 is further configured to receive call setup confirmation information from the network device, where the call setup confirmation information is used to indicate that the call setup between the first terminal device and the second terminal device is completed.

Optionally, the dual tone multi frequency information transmission mode includes at least one of the following: transmission by dual tone multi frequency signaling, transmission by session description protocol, transmission by voice signal.

The communication device provided in this embodiment may perform the actions of the first terminal device in the foregoing method embodiment, and its implementation principle and technical effects are similar, and are not described herein again.

Fig. 6 is a schematic structural diagram of another communication device according to an embodiment of the present application. It will be appreciated that the communications apparatus may correspond to implementing the operations or steps of the corresponding network device in the various method embodiments described above. The communication means may be a network device or may be a component configurable in a network device, such as a chip, a chip module, etc. As shown in fig. 6, the communication apparatus may include: the device comprises a receiving module 601, an obtaining module 602 and a sending module 603. Alternatively, the receiving module 601 and the transmitting module 603 may be integrated in the transceiver module or may be separated.

The receiving module 601 is configured to receive first indication information from a first terminal device, where the first indication information is used to indicate that the first terminal device supports at least one dual tone multi-frequency information transmission mode.

The obtaining module 602 is configured to obtain a second dual-tone multi-frequency information transmission mode of a second terminal device, where the second terminal device supports at least one dual-tone multi-frequency information transmission mode.

And a sending module 603, configured to send second indication information to the first terminal device, where the second indication information is used to indicate a target dtmf information transmission mode, where the target dtmf information transmission mode is used to transmit dtmf information between the first terminal device and the second terminal device, and the target dtmf information transmission mode is the same transmission mode in the first dtmf information transmission mode and the second dtmf information transmission mode of the second terminal device.

Optionally, the first indication information is session invitation information for calling the second terminal device, and the second indication information is session invitation response information from the network device.

Optionally, the sending module 603 is specifically configured to send third indication information to the second terminal device, where the third indication information is used to instruct the second terminal device to report the second dual-tone multifrequency information transmission mode. The receiving module 601 is specifically configured to receive a second dtmf information transmission mode sent by the second terminal device.

Optionally, the obtaining module 602 is specifically configured to obtain, according to the identifier of the second terminal device and the mapping relationship between the identifier of the terminal device and the dual-tone multi-frequency information transmission mode, a second dual-tone multi-frequency information transmission mode corresponding to the identifier of the second terminal device.

The communication device provided in this embodiment may perform the actions of the network device in the foregoing method embodiment, and its implementation principle and technical effects are similar, and are not described herein again.

Optionally, the communication device may further include at least one storage module, where the storage module may include data and/or instructions, and other modules (e.g., a receiving module, a sending module, a processing module, etc.) in the communication device may read the data and/or instructions in the storage module to implement a corresponding method.

It should be noted that, in the foregoing embodiments, the transmitting module may be actually implemented as a transmitter, and the receiving module may be actually implemented as a receiver, or the transmitting module and the receiving module are implemented by a transceiver, or the transmitting module and the receiving module are implemented by a communication port. And the processing module can be realized in the form of software calling through the processing element; or in hardware. For example, the processing module may be at least one processing element that is set up separately, may be implemented in one of the chips of the above-mentioned apparatus, or may be stored in the memory of the above-mentioned apparatus in the form of program codes, and the functions of the above processing module may be called and executed by one of the processing elements of the above-mentioned apparatus. In addition, all or part of the modules can be integrated together or can be independently implemented. The processing element referred to herein may be an integrated circuit having signal processing capabilities. In implementation, each step of the above method or each module above may be implemented by an integrated logic circuit of hardware in a processor element or an instruction in a software form.

For example, the modules above may be one or more integrated circuits configured to implement the methods above, such as: one or more application specific integrated circuits (application specific integrated circuit, ASIC), or one or more microprocessors (digital signal processor, DSP), or one or more field programmable gate arrays (field programmable gate array, FPGA), or the like. For another example, when a module above is implemented in the form of a processing element calling program code, the processing element may be a general-purpose processor, such as a central processing unit (central processing unit, CPU) or other processor that may call program code. For another example, the modules may be integrated together and implemented in the form of a system-on-a-chip (SOC).

Fig. 7 is a schematic structural diagram of another communication device according to an embodiment of the present application. As shown in fig. 7, the communication apparatus 700 may include: at least one processor 701, memory 702, and transceiver 703. Wherein the processor 701, the transceiver 703 and the memory 702 are in communication with each other through an internal connection path, the memory 702 is used for storing instructions, and the processor 701 is used for executing the instructions stored in the memory 702 to control the transceiver 703 to send instruction information and/or receive instruction information.

The communication device may be, for example, the network device, the first terminal device, or the second terminal device.

It should be understood that the communication device may correspond to the terminal device in the above method embodiment, or may correspond to the network device in the above method embodiment. And may be used to perform various steps and/or flows performed by the terminal device, or the network device, in the method embodiments described above. The memory 702 may optionally include read-only memory and random access memory, and provide instructions and data to the processor 701. A portion of the memory 702 may also include non-volatile random access memory. The memory 702 may be a separate device or may be integrated in the processor 701. The processor 701 may be configured to execute instructions stored in the memory 702, and when the processor 701 executes instructions stored in the memory, the processor 701 is configured to perform the steps and/or flows of the method embodiments described above.

The transceiver 703 may include a transmitter and a receiver, among others. The transceiver 703 may further include antennas, the number of which may be one or more. The processor 701 and the memory 702 and the transceiver 703 may be devices integrated on different chips. For example, the processor 701 and the memory 702 may be integrated in a baseband chip and the transceiver 703 may be integrated in a radio frequency chip. The processor 701 and the memory 702 may also be devices integrated on the same chip as the transceiver 703. The present application is not limited in this regard.

Alternatively, the communication means is a component, such as a chip, a chip system, etc., arranged in the terminal device, or in the network device.

The transceiver 703 may also be a communication interface, such as an input interface and/or an output interface, a circuit, etc. The transceiver 703 may be integrated in the same chip as both the processor 701 and the memory 702, such as in a baseband chip.

It should be understood that the communication means described above may be one or more chips. For example, the communication device may be a field programmable gate array (field programmable gate array, FPGA), an application specific integrated chip (application specific integrated circuit, ASIC), a system on chip (SoC), a central processing unit (central processor unit, CPU), a network processor (network processor, NP), a digital signal processing circuit (digital signal processor, DSP), a microcontroller (micro controller unit, MCU), a programmable controller (programmable logic device, PLD) or other integrated chip.

In implementation, the steps of the above method may be performed by integrated logic circuits of hardware in a processor or by instructions in the form of software. The steps of a method disclosed in connection with the embodiments of the present application may be embodied directly in a hardware processor for execution, or in a combination of hardware and software modules in the processor for execution. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory, and the processor reads the information in the memory and, in combination with its hardware, performs the steps of the above method. To avoid repetition, a detailed description is not provided herein.

It should be noted that the processor in the embodiments of the present application may be an integrated circuit chip with signal processing capability. In implementation, the steps of the above method embodiments may be implemented by integrated logic circuits of hardware in a processor or instructions in software form. The processor may be a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic, or discrete hardware components. The disclosed methods, steps, and logic blocks in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the embodiments of the present application may be embodied directly in hardware, in a decoded processor, or in a combination of hardware and software modules in a decoded processor. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory, and the processor reads the information in the memory and, in combination with its hardware, performs the steps of the above method.

It will be appreciated that the memory in embodiments of the present application may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable EPROM (EEPROM), or a flash memory. The volatile memory may be random access memory (random access memory, RAM) which acts as an external cache. By way of example, and not limitation, many forms of RAM are available, such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous DRAM (SLDRAM), and direct memory bus RAM (DR RAM). It should be noted that the memory described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

The embodiment of the application also provides a communication system, which comprises the first terminal device, the second terminal device and the network device in the embodiment.

The present application also provides a chip on which a computer program is stored which, when executed by the chip, implements the method of the above embodiments.

The present application also provides a computer-readable storage medium, which may include: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, etc., which may store program codes, and in particular, the computer-readable storage medium stores program instructions that, when executed, implement the methods in the above embodiments.

The present application also provides a computer program product comprising execution instructions stored in a readable storage medium. The at least one processor of the communication device may read the execution instructions from the readable storage medium, the execution instructions being executed by the at least one processor to cause the communication device to implement the communication methods provided by the various embodiments described above.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A communication method, applied to a first terminal device, the method comprising:

2. The method of claim 1, wherein the first indication information is capability information of the first terminal device, and the capability information is used to indicate a dual tone multi-frequency information transmission mode supported by the first terminal device.

3. The method of claim 2, wherein the capability information carries an identifier of the first dual tone multi-frequency information transmission mode.

4. A method according to any of claims 1-3, characterized in that the first indication information is session invite information for calling the second terminal device, the second indication information being session invite response information from the network device;

the method further comprises the steps of:

5. The method according to claim 4, wherein the method further comprises:

6. A method according to any one of claims 1-3, wherein the dual tone multi frequency information transmission scheme comprises at least one of: transmission by dual tone multi frequency signaling, transmission by session description protocol, transmission by voice signal.

7. A method of communication, for use with a network device, the method comprising:

8. The method of claim 7, wherein the first indication information is capability information of the first terminal device, and the capability information is used to indicate a dual tone multi-frequency information transmission mode supported by the first terminal device.

9. The method of claim 8, wherein the capability information carries an identification of the first dual tone multi-frequency information transmission mode.

10. The method according to any of claims 7-9, wherein the first indication information is session invite information for calling the second terminal device, and the second indication information is session invite response information from the network device.

11. The method according to any one of claims 7-9, wherein the obtaining the second dtmf information transmission mode of the second terminal device includes:

12. The method of claim 11, wherein the obtaining the second dtmf information transmission mode of the second terminal device includes:

13. The method according to any one of claims 7-9, wherein the dual tone multi frequency information transmission scheme includes at least one of: transmission by dual tone multi frequency signaling, transmission by session description protocol, transmission by voice signal.

14. A communication apparatus for use with a first terminal device, the apparatus comprising:

15. A communication apparatus for use with a network device, the apparatus comprising:

16. A communication device, the device comprising: a processor, transceiver, and memory; the processor is respectively in communication connection with the transceiver and the memory;

The memory stores computer-executable instructions;

the transceiver performs communication interaction with external equipment;

the processor executes computer-executable instructions stored in the memory to implement the method of any one of claims 1 to 6 or any one of claims 7 to 13.

17. A chip, characterized in that it has stored thereon a computer program which, when executed by the chip, implements the method according to any of claims 1 to 6 or any of claims 7 to 13.

18. A computer readable storage medium storing a computer program comprising instructions for implementing the method of any one of claims 1 to 6 or any one of claims 7 to 13.

19. A computer program product comprising computer program code embodied therein, which when run on a computer causes the computer to carry out the method according to any one of claims 1 to 6 or any one of claims 7 to 13.