protected void Page_Load(object sender, EventArgs e) { int is3g = 0; string msisdn = MobileUtils.GetMSISDN(out is3g); //msisdn = "84123456789"; string p = Request.QueryString["p"]; if (p == "1") { Response.Redirect(""); } var jsonObj = new { SDT = msisdn }; var jScriptSerializer = new JavaScriptSerializer(); string jsonClient = jScriptSerializer.Serialize(jsonObj); Response.Write(jsonClient); }