SMS Integration in ASP.NET

HttpWebRequest myReq =(HttpWebRequest)WebRequest.Create("http://###.###.##.#/SendSMS/sendmsg.php?uname=*****&pass=*****&send=*****%20&dest=" + mobile_no. + "&msg=Dear " + "Mr./Mrs " + Name_of_user+ " Thanks! for Feedback !!! ");
             
                HttpWebResponse myResp = (HttpWebResponse)myReq.GetResponse();
                System.IO.StreamReader respStreamReader = new                                                                                  System.IO.StreamReader(myResp.GetResponseStream());
                string responseString = respStreamReader.ReadToEnd();
                respStreamReader.Close();
                myResp.Close();