The speeds listed on broadband deals are an easy way to identify the type of technology used to connect you to the internet.
‘Up to 17Mbps’ is another way of saying ‘this is an ADSL connection’. ADSL broadband – which came out in 2000 – uses copper telephone lines and telephone exchanges to deliver a broadband service.
ADSL is the slowest but least expensive type of broadband available today.
Though affordable, connection quality suffers very badly from interference. If your connection is crowded with other users or there is a long distance to the closest exchange, the speed of ADSL broadband will dramatically decrease.
If you aren’t covered by fibre or cable providers, ADSL is likely your only option for fixed-line broadband.