Send SMS with a mobile phone

[carambola at aliceposta.it]

I wrote a rev-application to send  SMS . At the moment I send a post to 
a web-server and the server send the message. It works but I need an account 
on the server and an internet connection.

I wonder how can I send  SMS directly from my computer using a mobile phone 
(with an ordinary SIM) or some other appliances connected to my computer. 

Have you a hint about that? 

Best regards,

Paolo Mazza