3G调制解调器语音功能 [英] 3G Modem Voice functionality

问题描述

大多数3G调制解调器（USB支架）都支持语音通话，但所有这些只能通过随附的仪表板软件来实现。

您有任何信息，如何获取语​​音并将麦克风数据传递给3G调制解调器？

当我插上它时，它会安装4个COM端口：

NEMA

诊断

应用程序接口

标准COM端口，可用于传递AT命令。

所以目前通过标准COM端口，我可以通过ATDT12345678命令调用一个号码，建立连接，另一端振铃。当我接听电话时，我在3G调制解调器所连接的电脑上或在被叫电话上都没有听到任何声音。



任何答案或解决方法非常感谢。

FYI：我正在使用Delphi开发

Most of the 3G modem (USB sticks) are support voice call, but all of them can do this only through the dashboard software which is shipped with them.
Do you have any information, how to get the voice from and pass the mic data to the 3G modem?
When I plug it, it installs 4 COM ports:
NEMA
Diagnostic
Application Interface
standard COM port which can be used to pass AT commands.
So currently via the standard COM port I can pass the ATDT12345678 command to call a number, the connection established, and the other end is ringing. When I answer to the call, I don't hear anything neither on the computer which the 3G modem is connected to nor on the called phone.

Any answer or workaround is appreciated.
FYI: I'm using Delphi for developing

推荐答案

我也在进行相同类型的实施，我知道当我们通过AT命令通过NEMA端口发起呼叫时，它将调用目的地号码。一旦另一端应答呼叫，另一个端口（应用程序接口/语音端口）将开始发送二进制数据。我能够获得二进制数据，但我遇到的问题是找到数据的格式，这意味着接收的数据应该以wav或其他格式存储，我仍在努力...



如果您已找到解决方案，请与我们联系。

Hi,

I am also working on same kind of implementation and I understand that when we initiate a call through NEMA port through AT command, it will call the destination number. The other port (Application Interface/Speech port) will start sending binary data once the call is answered by other end. I am able to get that binary data but I am having the problem in finding the format of the data which means the received data should be stored in wav or some other format, I am still working on this ..

Please let me know if you already found the solution.

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