1300 Numbers are virtual numbers, meaning they only exist in the telecommunications cloud.
This means they aren’t physical, like your office phone, your mobile or your home phone. 1300 numbers operate the same as internet domain names, so the service just lives in cyberspace and you point it to your webserver where your website lives.
Ok, so that’s how they technically work, from a practical point of view all you really need to know is where you want the 1300 number to connect to. Most customers just connect their 1300 number to their office phone or mobile phone – which ever is more practical to there business.