I have a Dell Latitude E4300. It has a Bluetooth sign on it and it is always in “on” state.
If I use my cellphone Bluetooth to search for it, it shows my laptop in its search for new devices list. However, I could never connect my cellphone with it (pairing Failed) to transfer small amounts of data, like audio songs etc.
I think it would be a lot easier to transfer small data by using Bluetooth, for example when I don’t have my cellphone’s data cable. :P