I can't see a class, but i know i can send arguments see:
[HTML]https://myaccount.smsdiscount.com/clx/sendsms.php?username=xxxxxxxxxx&password=xxxxxxxxx x&from=xxxxxxxxxx&to=xxxxxxxxxx&text=xxxxxxxxxx[/HTML]
if you made it link and fill username, password, text, to ... then with one click you can send sms from your desktop html code
how to send arguments to php class with textbox