ADSL ‘asymmetric digital subscriber line’ is a type of internet connection that is delivered through your telephone line.
This is the most popular type of internet connection and is ‘asymmetric’ which means that the download speed will be quicker than the upload speed.
You will have a ‘splitter adapter’ inside your home that splits the incoming copper phone line into two. Your home telephone plugs into one of the splitter ports and your broadband router plugs into the other port.
This allows you to use your home phone and browse the internet at the same time.
Symmetric broadband (same download and upload speed) are available from broadband providers such as Hyperoptic broadband.