public bool SendSms2(string text, ApplicationUser currentUser)
        {
            var username = ConfigurationManager.AppSettings["SMSKing-Username"];
            var password = ConfigurationManager.AppSettings["SMSKing-Password"];
            _phoneNumber = "0" + _phoneNumber;
            var responseUrl = "http://dev.goplay.la/api/smsresponse";
            var submiturl = "https://api.kotsms.com.tw/kotsmsapi-1.php";


            var strRequest = new StringBuilder();
            var strResponse = false;
            strRequest.AppendFormat("username={0}", username);
            strRequest.AppendFormat("&password={0}", password);
            strRequest.AppendFormat("&dstaddr={0}", _phoneNumber);
            strRequest.AppendFormat("&smbody={0}", text);
            strRequest.AppendFormat("&response={0}", responseUrl);

            const int maxRetries = 5;

            int attempts = 0;

            do
            {
                try
                {
                    HttpWebRequest request = (HttpWebRequest)WebRequest.Create(submiturl);
                    request.Method = "POST";
                    request.ContentType = "application/x-www-form-urlencoded";
                    request.ContentLength = strRequest.Length;

                    StreamWriter streamWriter = new StreamWriter(request.GetRequestStream(), System.Text.Encoding.ASCII);
                    streamWriter.Write(strRequest);
                    streamWriter.Close();

                    //StreamReader streamReader = new StreamReader(request.GetResponse().GetResponseStream());
                    //strResponse = streamReader.ReadToEnd();
                    //streamReader.Close();

                    strResponse = true;

                    break;
                }
                catch (WebException ex)
                {
                    if (ex.Status != WebExceptionStatus.ReceiveFailure &&
                        ex.Status != WebExceptionStatus.ConnectFailure &&
                        ex.Status != WebExceptionStatus.KeepAliveFailure)
                    {
                        HandleError(_phoneNumber, currentUser, ex.ToString());
                    }

                    if (++attempts >= maxRetries)
                        HandleError(_phoneNumber, currentUser, ex.ToString());

                    Thread.Sleep(1000);
                }
            } while (true);

            _phoneNumber = "+886" + _phoneNumber.TrimStart('0');
            return strResponse;
        }