AT命令的使用C＃.NET拨打电话 [英] Dial call using C#.net by AT Commands

问题描述

我想要通过USB电缆连接到我的手机打只需要打一个电话一个C＃程序。我发现如何通过的SerialPort以及如何连接通过AT命令拨打电话，但是当我运行我的程序，然后点击拨打电话，没有任何反应。这是我的代码，请帮我：

 的SerialPort SP =新的SerialPort（COM3）; 
 SP.BaudRate = 9600; 
 SP.Parity = Parity.None; 
 SP.DataBits = 8; 
 SP.StopBits = StopBits.One; 
 SP.RtsEnable = TRUE; 
 SP.DtrEnable = TRUE; 
 SP.Encoding = System.Text.Encoding.Unicode; 
 SP.ReceivedBytesThreshold = 1; 
 SP.NewLine = Environment.NewLine; 
 SP.Open（）; 
 SP.Write（ATDT 0999182542+ Environment.NewLine）; 
 
 SP.Close（）; 
  

解决方案

首先，看看你的调制解调器连接，发送 AT 命令的端口。如果你收到了确定作为回应，那么就意味着你的调制解调器连接。

要拨打电话的语法是：

ATDYourphnumber; // DONOT忘记在，

例如： ATD9012345645;

所以，你应该写端口以同样的方式。

语法：

SP.WriteLine（ATD+ PHONENUMBER +）;

您可以使用的的WriteLine 的，因为供应的 \r\\\
太。

更新：如何看到来自调制解调器的响应：

在 SP.Open（）的;

  CMD字符串=AT; 
 SP.WriteLine（CMD +\r）; 
 SP.Write（CMD +\r）; 
的Thread.Sleep（500）; 
串SS = SP.ReadExisting（）; 
如果（ss.EndsWith（\r\\\
OK\r\\\
））
 {
 MessageBox.Show（调制解调器连接）; 
} 
  

I want to make a c# program that connects to my mobile phone by usb cable to make just a call. I found how to connect by SerialPort and how to make call by AT Commands, but when I run my program and click to make the call, nothing happens. This is my code, please Help me:

SerialPort SP = new SerialPort("COM3");
SP.BaudRate = 9600;
SP.Parity = Parity.None;
SP.DataBits = 8;
SP.StopBits = StopBits.One;
SP.RtsEnable = true;
SP.DtrEnable = true;
SP.Encoding = System.Text.Encoding.Unicode;
SP.ReceivedBytesThreshold = 1;
SP.NewLine = Environment.NewLine;
SP.Open();
SP.Write("ATDT 0999182542"+ Environment.NewLine);

SP.Close();

解决方案

First of all to see if your modem is connected, send an AT command to the port. If you get a OK as response, then it means your modem is connected.

To make a call the syntax is:

ATDYourphnumber; //Donot forget the ";"

Example: ATD9012345645;

So you should write to the port the same way.

Syntax:

SP.WriteLine("ATD"+phonenumber+";");

You can use WriteLine since that serves the \r\n too.

Update: How to see the response from modem:

After SP.Open( ) ;

string cmd = "AT";
SP.WriteLine(cmd + "\r");
SP.Write(cmd + "\r");
Thread.Sleep(500);
string ss= SP.ReadExisting();
if(ss.EndsWith("\r\nOK\r\n"))
  {
   MessageBox.Show("Modem is connected");
  }

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