'use the intellisoftwares' gateway
'objIntelliSMS = New IntelliSMS
'objIntelliSMS.PrimaryGateway = "https://www.intellisoftware.co.uk"
'objIntelliSMS.BackupGateway = "https://www.intellisoftware2.co.uk"
'objIntelliSMS.Username = "xxxxxxxxxxxxxxx"
'objIntelliSMS.Password = "xxxxxx"
'Try
' objIntelliSMS.SendMsg(strCellFoneNo, "This sms operation  is successful", "www.MySite.com")
' lblError.Text = "SMS Sent successfully to " & strCellFoneNo
'Catch Ex As Exception
' lblError.Text = "Error!: SMS could not be sent to " & strCellFoneNo
'Finally
'End Try

[code = VB.NET]
[inline code]
private void Send_Click(object sender, System.EventArgs e)
{
   try
      {
   	SmsTest.com.webservicex.www.SendSMSWorld smsWorld =  
         new SmsTest.com.webservicex.www.SendSMSWorld();
            smsWorld.sendSMS(txtEmailId.Text.Trim(), 
                    txtCountryCode.Text.Trim(), 
                    txtMobileNo.Text.Trim(), txtMessage.Text);
        lblMessage.Visible = true;
        lblMessage.Text="Message Send Succesfully";
      }
   
    catch(Exception ex)
    {
        lblMessage.Visible = true;
        lblMessage.Text="Error in Sending message"+ex.ToString();
    }
}

[/inlinecode]