Help needed in developing bulk messaging system

Hi,

which type of Bulk Messaging system you need to??

whether it send bulk SMS using API or what??

if it is with the help of API then you can choose any of the language because to implementing the API SMS is quite easy

Meanwhile you can use C# winform

//Your authentication key
           string user = "XXXXXXXXX";
           //Multiple mobiles numbers separated by comma
           string pass = "XXXXX";
           //Sender ID,While using route4 sender id should be 6 characters long.
           string send = "060000";
           //Your message to send, Add URL encoding here.
           string text = textBox2.Text;
           string priority = "dnd";
           string stype = "normal";
           string phone = textBox1.Text;

           //Prepare you post parameters
           StringBuilder sbPostData = new StringBuilder();
           sbPostData.AppendFormat("user={0}", user);
           sbPostData.AppendFormat("&pass={0}", pass);
           sbPostData.AppendFormat("&sender={0}", send);
           sbPostData.AppendFormat("&phone={0}", phone);
           sbPostData.AppendFormat("&text={0}", textBox2.Text);
           sbPostData.AppendFormat("&priority={0}", priority);
           sbPostData.AppendFormat("&stype={0}", stype);


           try
           {
               //Call Send SMS API
           string sendSMSUri = "http://bhashsms.com/api/sendmsg.php";
               //Create HTTPWebrequest
               HttpWebRequest httpWReq = (HttpWebRequest)WebRequest.Create(sendSMSUri);
               //Prepare and Add URL Encoded data
               UTF8Encoding encoding = new UTF8Encoding();
               byte[] data = encoding.GetBytes(sbPostData.ToString());
               //Specify post method
               httpWReq.Method = "POST";
               httpWReq.ContentType = "application/x-www-form-urlencoded";
               httpWReq.ContentLength = data.Length;
               using (Stream stream = httpWReq.GetRequestStream())
               {
                   stream.Write(data, 0, data.Length);
               }
               //Get the response
               HttpWebResponse response = (HttpWebResponse)httpWReq.GetResponse();
               StreamReader reader = new StreamReader(response.GetResponseStream());
               string responseString = reader.ReadToEnd();

               //Close the response
               reader.Close();
               response.Close();
               MessageBox.Show("Your SMS send successfully");
           }
           catch (SystemException ex)
           {
               MessageBox.Show(ex.Message.ToString());
           }