send message on mobile by asp.net c#

using System.Net.Mail;<br />
using System.IO.Ports;

string Address = "http://ubaid.tk/sms/sms.aspx?uid=9876543210&pwd=sample &msg=Testing of my project &phone=" + TextBox3.Text + "&provider=way2sms";
            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(Address);
            WebResponse response = null;
            StreamReader reader = null;
            response = request.GetResponse();
reader = new StreamReader(response.GetResponseStream(), Encoding.UTF8);
            string result = reader.ReadToEnd();
            reader.Close();
            if (result == "1")
            {
                Label8.Text = "Mail and Sms has Sent ";
                          
                          (or)
    
                Response.Write("SMS sent successfully");
               
            }