Mobile to Website
 

I am truly sorry for posting this here as I tried asking a lot of forums (must be the wrong ones) about that and got no satisfactory result. I hope some of you could help me..

I am going to build a simple website that interacts with cellular/mobile phones. How is it possible for users to send a command message to the website regardless of regions? For example, user X has an account on ABC.Com and he can ask for a particular picture from the site by following a particular formatted text message. How can it be done?

A year ago in school, I made a simple experimental application where students register for an account using their phones, add their current subjects so that they can get quiz, exam, grade related info using their phones. I made one client side program to send the formatted message to another phone which is connected to internet. The phone that is connected to the internet receives the messages and forwards 'em to the server using HttpConnection. The server is a Java Servlet that listens to incoming requests and sends a response back. It was just for fun.

Any help would be highly appreciated.

I am more than amazed that nobody replied.. C'mon guys, share your thoughts please..