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How can read sms from GSM modem using AT command

P: 1
Hi,I am syedur Rahman.

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  1. protected void ReadSMS_Click(object sender, EventArgs e)
  2. {
  3. openport();//Port Related function
  4.  
  5.  
  6. // Select SIM storage
  7. serialport.WriteLine("AT+CPMS=" + Environment.NewLine);
  8. System.Threading.Thread.Sleep(200);
  9. // Read the messages
  10. txtreadmessage.Text = serialport.ReadExisting();
  11. serialport.WriteLine("AT+CMGL=" + Environment.NewLine);
  12. System.Threading.Thread.Sleep(200);
  13. serialport.Close();
  14. }
  15.  
Without debugging error i can not read sms from GSM Modem. Can you send sample code in click event in asp.net c#. I huge googling but i can not success.
Dec 2 '13 #1
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