Question

我试图通过AT命令用huawei调制解调器发送ussd消息。这是我的函数，它将At命令写入串口。

对于短信，我尝试以下和它的工作，我可以短信。

 string recievedData = ExecCommand(port,"AT", 300, "No phone connected");
            recievedData = ExecCommand(port,"AT+CMGF=1", 300, "Failed to set message format.");
            String command = "AT+CMGS=\"" + PhoneNo + "\"";
            recievedData = ExecCommand(port,command, 300, "Failed to accept phoneNo");         
            command = Message + char.ConvertFromUtf32(26) + "\r";
            recievedData = ExecCommand(port,command, 3000, "Failed to send message"); //3 seconds
            if (recievedData.EndsWith("\r\nOK\r\n"))
            {
                isSend = true;
            }
            else if (recievedData.Contains("ERROR"))
            {
                isSend = false;
            }

但对于ussd消息，我在尝试以下内容时，

  string recievedData = ExecCommand(port,"AT", 300, "No phone connected");
            recievedData = ExecCommand(port,"AT+CMGF=1", 300, "Failed to set message format.");
            String command = "AT+CUSD=1,*566#";
            recievedData = ExecCommand(port,command, 3000, "Failed to send ussd");
            Console.WriteLine("received data : " +recievedData);
          //  command = Message + char.ConvertFromUtf32(26) + "\r";
          //  recievedData = ExecCommand(port,command, 3000, "Failed to send message"); //3 seconds
            if (recievedData.EndsWith("\r\nOK\r\n"))
            {
                isSend = true;
            }
            else if (recievedData.Contains("ERROR"))
            {
                isSend = false;
            }

前两个exec命令返回ok，但第三个exec命令返回错误。

USSD代码正在提供商移动合作伙伴应用程序

我需要发送哪些AT命令来正确处理ussd应用程序？

USSD消息通过AT命令与huawei调制解调器发送

0 个答案: