What can you use to get an application to be able to receive SMS message?

Question

• Do you need to use some kind of provider?
• Can you setup your own SMS server?
• Does any open source solutions exist?

I am an SMS newbie so

Answer 1

I used kannel on a linux box with an old mobile phone connected via a serial cable to the box. Got a pre-paid card in the phone as I was using it for private use only. Worked like a charm!