ADSL Broadband
ASDL Broadband
Asymmetric Digital Subscriber Line (ADSL) is a form of data communications technology that enables faster data transmission over copper telephone lines than a conventional voiceband modem can provide. It does this by utilizing frequencies that are not used by a voice telephone call. A microfilter allows a single telephone connection to be used for both ADSL service and voice calls at the same time.
The development of ADSL technology has allowed broadband to be delivered via traditional copper telephone cables. ADSL was introduced in the UK in 2000, with most exchanges and local loops managed by BT, who sell on connectivity to other ISPs, who provide the actual connectivity to the Internet, as well as telephone support and billing.
Why choose ADSL broadband?
Broadband is faster because it uses a wider bandwidth connection that allows more data to be transmitted in a shorter space of time, so you no longer have to wait hours to download software or music files like you used to with dial-up internet. The vast majority of BT exchanges are enabled for ADSL, meaning that 99% of the UK population can receive ADSL broadband access, whereas only 46% of the UK population can receive Cable Broadband.
In March 2006, BT launched broadband services giving speeds of up to 8 Mbps and recently announced plans to roll out fibre based super-fast broadband to as many as 10 million homes by 2012, which will deliver a range of services with top speeds of up to 100 Mbps.
How do you connect to ADSL broadband?
With ADSL broadband your analogue BT line is converted into an ADSL line via a modem at your home and the BT phone exchange. All you need is an active BT line, a new modem which is compatible with an ADSL connection and a microfilter. You'll receive a start-up package from your Broadband provider in the post containing everything you need to set up broadband, with the broadband provider activating your connection themselves on a specified date.
If you're migrating from one ADSL broadband provider to another, you'll need a standard BT ADSL connection and your individual MAC code, which you need to obtain from your existing ADSL broadband provider. You'll need to let your new ADSL broadband provider have the MAC code and they'll contact your existing provider and BT to arrange for the transfer of your broadband. On the day your broadband is switched over your broadband will be unavailable for around 20 minutes while it's transferred over.
There are a wide range of companies that provide ADSL broadband, including BT, Tiscali, Orange, O2, Talk Talk, Sky, Virgin Media; and all have a range of different packages to suit your needs, starting from as little as £12.50 per month.
What to do next
Take a look at our more detailed guides on Cable Broadband, Broadband and How to Save Money on Broadband.
Or, go straight ahead and compare all the Broadband suppliers and prices for your area.
