Send and Receive SMS from Mobile to Mobile using C# Application

<pre><pre lang="css">public class ShortMessage
   {

       #region Private Variables
       private string index;
       private string status;
       private string sender;
       private string alphabet;
       private string sent;
       private string message;
       #endregion

       #region Public Properties
       public string Index
       {
           get { return index; }
           set { index = value; }
       }
       public string Status
       {
           get { return status; }
           set { status = value; }
       }
       public string Sender
       {
           get { return sender; }
           set { sender = value; }
       }
       public string Alphabet
       {
           get { return alphabet; }
           set { alphabet = value; }
       }
       public string Sent
       {
           get { return sent; }
           set { sent = value; }
       }
       public string Message
       {
           get { return message; }
           set { message = value; }
       }
       #endregion

   }

   public class ShortMessageCollection : List<ShortMessage>
   {
   }









#region Read SMS

        public AutoResetEvent receiveNow;

        public ShortMessageCollection ReadSMS(SerialPort port)
        {

            // Set up the phone and read the messages
            ShortMessageCollection messages = null;
            try
            {

                #region Execute Command
                // Check connection
                ExecCommand(port, "AT", 300, "No phone connected");
                // Use message format "Text mode"
                ExecCommand(port, "AT+CMGF=1", 300, "Failed to set message format.");
                // Use character set "PCCP437"
                ExecCommand(port, "AT+CSCS=\"PCCP437\"", 300, "Failed to set character set.");
                // Select SIM storage
                ExecCommand(port, "AT+CPMS=\"SM\"", 300, "Failed to select message storage.");
                // Read the messages
                string input = ExecCommand(port, "AT+CMGL=\"ALL\"", 5000, "Failed to read the messages.");
                #endregion

                #region Parse messages
                messages = ParseMessages(input);
                #endregion

            }
            catch (Exception ex)
            {
                throw new Exception(ex.Message);
            }

            if (messages != null)
                return messages;
            else
                return null;

        }
        public ShortMessageCollection ParseMessages(string input)
        {
            ShortMessageCollection messages = new ShortMessageCollection();
            try
            {
                Regex r = new Regex(@"\+CMGL: (\d+),""(.+)"",""(.+)"",(.*),""(.+)""\r\n(.+)\r\n");
                Match m = r.Match(input);
                while (m.Success)
                {
                    ShortMessage msg = new ShortMessage();
                    //msg.Index = int.Parse(m.Groups[1].Value);
                    msg.Index = m.Groups[1].Value;
                    msg.Status = m.Groups[2].Value;
                    msg.Sender = m.Groups[3].Value;
                    msg.Alphabet = m.Groups[4].Value;
                    msg.Sent = m.Groups[5].Value;
                    msg.Message = m.Groups[6].Value;
                    messages.Add(msg);

                    m = m.NextMatch();
                }

            }
            catch (Exception ex)
            {
                throw ex;
            }
            return messages;
        }

        #endregion