Library for Decode/Encode SMS PDU

		public static string Decode7bit(string source, int length)<br />
		{<br />
			byte[] bytes = GetInvertBytes(source);<br />
<br />
			string binary = string.Empty;<br />
<br />
			foreach (byte b in bytes)<br />
				binary += Convert.ToString(b, 2).PadLeft(8, '0');<br />
<br />
			binary = binary.PadRight(length * 7, '0');<br />
<br />
			string result = string.Empty;<br />
<br />
			for (int i = 1; i <= length; i++)<br />
				result += (char) Convert.ToByte(binary.Substring(binary.Length - i * 7, 7), 2);<br />
<br />
			return result.Replace('\x0', '\x40');<br />
		}<br />

<br />
SerialPort port = new SerialPort();<br />
port.Port = "COM1"; //Here you enter port number via your phone connected to PC (if you use data cable see control panel -> modems, if you use bluetooth see connected message)<br />
port.Open();<br />
port.NewLine = "\r";<br />
<br />
//mySMS here is a instance of SMS class.<br />
string pdu = mySMS.Compose(SMS.SMSEncoding.UCS2); //If you using my library<br />
<br />
port.WriteLine(string.Format("AT+CMGS={0}", (pdu.Length / 2) - 1));<br />
Thread.Sleep(1000); //Here we wait for phone response<br />
//Response should return "> " string, which indicates that you can write pdu. If "CMS+ERROR" or "ERROR" string returns - you have troubles.<br />
<br />
//Then send our pdu<br />
port.WriteLine(string.Format("{0}\x1A", pdu));<br />
//"OK" string should be return<br />

0791246030500200440C91246030828930000060218080239440A00500039E020182E8B71AA427CBC3F6741B640DCF4169D07C5D87A7DD75D0529E9FD3DF6697755C968741EA79B90DB2E7D1F2303B0C5297D5E9311A34248641ECF49CBECE83DC61D0FAED1E97E574D0BC0CAAEB41EDF718442FCFD36D50183446D3CBEC30489C1FA341F6F01C047FC3E5EF799A0E0AEB416477790E9AA741F43AC89E47CBEB20785D4DAE83EC

System.ArgumentOutOfRangeException: Hodnota StartIndex nemůže být menší než nula.
Název parametru: startIndex
   v System.String.InternalSubStringWithChecks(Int32 startIndex, Int32 length, Boolean fAlwaysCopy)
   v System.String.Substring(Int32 startIndex, Int32 length)
   v SMSPDULib.SMSBase.Decode7bit(String source, Int32 length) v C:\Documents and Settings\soukup\Dokumenty\Visual Studio 2005\Projects\SMS_PDU_decode_test\SMS_PDU_decode_test\SMSBase.cs:řádek 68
   v SMSPDULib.SMS.Fetch(SMS sms, String& source) v C:\Documents and Settings\soukup\Dokumenty\Visual Studio 2005\Projects\SMS_PDU_decode_test\SMS_PDU_decode_test\SMS.cs:řádek 205
   v SMS_PDU_decode_test.Form1.btn_PDUdecode_Click(Object sender, EventArgs e) v C:\Documents and Settings\soukup\Dokumenty\Visual Studio 2005\Projects\SMS_PDU_decode_test\SMS_PDU_decode_test\Form1.cs:řádek 35