CN103402034A

CN103402034A - Method for realizing real-time control of teleconference by utilizing 2G (second generation) voice channel

Info

Publication number: CN103402034A
Application number: CN2013103179926A
Authority: CN
Inventors: 汤冬儿; 邓从健; 宁学军
Original assignee: PCI Suntek Technology Co Ltd
Current assignee: PCI Suntek Technology Co Ltd
Priority date: 2013-07-24
Filing date: 2013-07-24
Publication date: 2013-11-20

Abstract

The invention provides a method for realizing the real-time control of a teleconference by utilizing a 2G (second generation) voice channel. The method is characterized in that a DTMF (dual tone multi frequency) code is transmitted through the 2G voice channel to a voice conference system, the audio DTMF code is analyzed by the voice conference system to obtain a control command of the conference business, and the voice conference system provides the corresponding service according to the command. Due to the adoption of the method, the problem that the voice channel and a data channel cannot be coexist in a 2G network and a 3G (third generation) network (CDMA2000 (code division multiple access 2000) and TD-SCDMA (time division-synchronization code division multiple access) can be solved, and the method can be applied to the voice conference business.

Description

A kind of 2G of utilization voice channel is realized the method that videoconference is controlled in real time

Technical field

The invention belongs to the telecommunication technology field, when being particularly related to voice terminal and needing business platform to carry out interbehavior, transmit control command by the 2G voice channel,, to solve the problem that voice channel and data channel can't and be deposited under 2G network, CDMA20003G network, TD-SCDMA3G network, reach the application of the method in audio conference service.

Background technology

At present, the core network of telecom operators, no matter be 2G network (GSM), or 3G network (CDMA2000, TD-SCDMA), the problem that all exists voice channel and data channel can not and deposit, after voice terminal and platform are set up voice link, just can not the usage data channel transmission data.And at value-added service platform, particularly the audio conference service platform, usually need to send some control commands to platform in communication process, the service control flow process.Therefore need a kind of method that can utilize voice channel transmission control command.

Summary of the invention

The objective of the invention is in operator's voice value-added service, after voice terminal and audio communication value-added service platform end are set up voice channel, voice terminal, to audio communication value-added service platform transmission control command, is completed the method for related service by voice channel by the audio communication value increasing platform.

In order to realize goal of the invention, the technical scheme of employing is as follows:

A kind of 2G of utilization voice channel is realized the method that videoconference is controlled in real time, it is characterized in that by the DTMF code after transmitting coding at voice channel as the convention business control command.

What carry on voice channel is audio signal, participant's voice messaging and DTMF key information are mixed in together, the frequency of its sound intermediate frequency DTMF button and the frequency of participant's voice are not overlapping, can use special-purpose DSP decoder that the DTMF code is separated.

After coding, the DTMF code is comprised of 42 machine-processed numerical value, and one has 16 characters, usually uses and only uses wherein 12 characters (from 0 to 9, add * and #).For in order to avoid terminal use's misoperation and easily memory, command code be defined as "? # " and " # " two kinds of patterns, wherein? represent 0 to 9 numerical character.

For instruction commonly used, for convenient memory and use, the use short instruction "? # " pattern, totally 10 instructions.The instruction employing that is of little use " # " pattern, totally 99 instructions., if this instruction is the band parameter, just be attached to the # back.

Description of drawings

In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, below will the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.

Figure is the flow chart by 2G voice channel transmitting conference control command of the present invention.

Embodiment

The enforcement scene of this patent is after the voice terminal user enters the meeting platform, to send the DTMF code by terminal push and control conference flow.

Referring to figure, implementing procedure is:

1. the user is by voice frequency terminal exhalation voice value increasing platform;

2. the voice value increasing platform adds the meeting platform to the user;

3. the user uses terminal push to send the DTMF code;

4. the voice value increasing platform receives on the 2G voice channel and transmits the audio stream of coming;

5. the voice value increasing platform separates and identifies the DTMF code stream from the audio stream that mixes;

6. the voice value increasing platform obtains the meeting instruction according to instruction template in advance;

7. the voice value increasing platform sends the meeting instruction to the meeting platform;

8. the meeting platform is carried out instruction;

9. the voice value increasing platform feeds back execution result to the terminal use.

The above is only the specific embodiment of the present invention; should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.

Claims

1. one kind is utilized the 2G voice channel to realize the method that videoconference is controlled in real time, it is characterized in that the code by 2G voice channel transmission of audio DTMF, resolved and obtained the DTMF code by speech conference system, thereby obtain the control request of meeting, speech conference system provides a kind of method of service according to request.

2. 2G voice channel transmitting conference according to claim 1 is controlled request, it is characterized in that sending audio frequency DTMF code by the voice terminal of talking state, uses the 2G voice channel to be transferred to speech conference system.

3. speech conference system according to claim 1 is resolved the DTMF code, it is characterized in that, speech conference system need to be isolated the DTMF code in the 2G voice channel, pass through a command mappings table and obtain the meeting control command.

4. the control request of meeting according to claim 3, it is characterized in that controlling request is comprised of control command and instruction parameter, use between control command and instruction parameter and separate for No. #, control command only has 1 or 2 characters, order parameter be can not have or only have a length 20 with interior numerical character shape parameter.

5. control command according to claim 4, is characterized in that, control command is supported switching mode, can use an instruction complete the startup of a business function and close.