我正在尝试使用HSDPA 7.1 GSM调制解调器发送短信 [英] I am trying to send SMS using HSDPA 7.1 GSM Modem

问题描述

我想用Vb.net发送短信我有HSDPA 7.1 GSM调制解调器它的工作正常随着软件出现我​​也测试了HyperTerminal工作正常但是当我使用VB.NET发送相同命令时没有碰巧我发送Follwing系列的cammands

如果是SerialPort.IsOpen那么

SerialPort.Close（）

结束如果

SerialPort.PortName = COM4

SerialPort.BaudRate = 9600

SerialPort.Parity = Parity.None

SerialPort.StopBits = StopBits.One

SerialPort.DataBits = 8

SerialPort.Handshake = Handshake.RequestToSend

SerialPort.DtrEnable = True

SerialPort .RtsEnable = True

SerialPort.NewLine = vbCrLf

昏暗消息为字符串

message = MsgRichTextBox.Text

SerialPort.Open（）

如果是SerialPort.IsOpen（）那么

SerialPort.Write（" AT"& vbCrLf）
SerialPort.Write（" AT + CMGF = 1" &安培; vbCrLf）

SerialPort.Write（" AT + CMGS =" Chr（34）& phoneNumBox.Text& Chr（34）& vbCrLf）

SerialPort.Write（message& Chr（26））

SentPicture.Visible = True

SentLabel.Visible = True

SentTimer.Start （）

Else

MsgBox（端口不可用）

结束如果



请建议任何其他更好的GSM MODEM接受AT命令

Thansk

Hi, I want to send SMS using Vb.net I have HSDPA 7.1 GSM Modem its works ok with software came along with it and I also have tested with HyperTerminal works fine but when I am sending same commands using VB.NET nothing happens I am sending Follwing series of cammands
If SerialPort.IsOpen Then
SerialPort.Close()
End If
SerialPort.PortName = COM4
SerialPort.BaudRate = 9600
SerialPort.Parity = Parity.None
SerialPort.StopBits = StopBits.One
SerialPort.DataBits = 8
SerialPort.Handshake = Handshake.RequestToSend
SerialPort.DtrEnable = True
SerialPort.RtsEnable = True
SerialPort.NewLine = vbCrLf
Dim message As String
message = MsgRichTextBox.Text
SerialPort.Open()
If SerialPort.IsOpen() Then
SerialPort.Write("AT" & vbCrLf)
SerialPort.Write("AT+CMGF=1" & vbCrLf)
SerialPort.Write("AT+CMGS=" & Chr(34) & phoneNumBox.Text & Chr(34) & vbCrLf)
SerialPort.Write(message & Chr(26))
SentPicture.Visible = True
SentLabel.Visible = True
SentTimer.Start()
Else
MsgBox("Port not available")
End If

Please suggest any other better GSM MODEM which accepts AT Commands
Thansk

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