First of all you must have a mobile phone signal or wireless internet access for your visitors to use and connect their phones to. This will be used to link them with the content.
To use QR codes your visitors must then have a smartphone equipped with a camera and a QR code reader/scanner application. Luckily, the newer smartphones models available today often have the app pre-installed. If not all visitors have to do is visit their phone’s app store (example Android Market, Apple App Store, BlackBerry App World, etc.) and download the normally FREE QR code reader/scanner app.
Once installed they can use the app to scan/photo the code which will then link them to the resource over the internet.
The resource can be a piece of text, image, sound or video or a whole mixture on one page.
Now don’t worry if you are in a dead mobile or wireless spot, there are other ways we can can run a system locally, contact us for further information.