using System;
using System.Collections.Generic;
using System.Text;
using System.IO.Ports;
using System.Threading;

namespace ReadSMSConsole
{
    class Program
    {
        static SerialPort mySerialPort;

        static void Main(string[] args)
        {
        mySerialPort=new SerialPort("COM3");
        mySerialPort.ReadTimeout=1500; //1500millisecond timeout
        mySerialPort.Open();

        SendATCommand("AT+CMGF=1");
        DisplayReceivedData();

        SendATCommand("AT+CMGL=\"ALL\"");
        DisplayReceivedData();
        Console.ReadKey();
        }


        static void SendATCommand(string strAT)
        {
        mySerialPort.DiscardInBuffer();
        Console.WriteLine(strAT);
        mySerialPort.WriteLine(strAT+"\r\n");
        }

        static void DisplayReceivedData()
        {
        do
            {
            Console.WriteLine(mySerialPort.ReadLine());
            }while(mySerialPort.BytesToRead!=0);
        }


    }
}