public void SendSMS(string reciever, string message, string countrycode)
{
string encodedmessage = HttpUtility.UrlPathEncode(message);
string url = "http://sms.kyoto-tech.com/sendurlcomma.aspx?user=******pwd=******&senderid=DELMA&mobileno=" + reciever + "&msgtext=" + encodedmessage + "&Countrycode=" + countrycode;
WebRequest request = HttpWebRequest.Create(url);
WebResponse response = request.GetResponse();
StreamReader reader = new StreamReader(response.GetResponseStream());
string urlText = reader.ReadToEnd(); // it takes the response from your url. now you can use as your need
}