public void SendSMS(stirng msg, string mobileno)
{
   ///SMS GATEWAY PROVIDER PATH
   string url = "http://XXXXProvider.com?phoneNumber={0}&MsgTxt={1}";

   string url1 = String.Fomat(url, mobileNo, msg);

   //create Web Request object for the url
   HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url1);

   // get the response from the web request
   HttpWebResponse res = (HttpWebResponse)req.GetResponse();

   // read the response from the WebResponse in to a stram
   Stream s = res.GetResponseStream();
   StreamReader rdr = new StreamReader(s);
   string result = rdr.ReadLine();
   s.Flush();
   s.Close();
}