Frequently Asked Questions About the Internet

ADSL is a broadband connection technology that uses existing telephone networks. It uses a frequency range not used in normal voice communications to deliver much higher speeds than a traditional 56 k modem (between 4 and 140 times faster). As it splits the signal into two channels, one for voice communications and the other for the high speed data communications, it's possible to use the telephone whilst online.

ADSL is a type of DSL where the upstream and downstream speeds differ (hence the "asymmetric" part). The downstream speed (from the exchange to you) is typically faster than the upstream (from you to the exchange).

There are hundreds of ISPs offering ADSL service; see our ISP list for details.

Not at the moment no. However, you may be able to get broadband through a cable connection. This is provided via the local cable providers network rather than the BT telephone network, and offers similar speeds and services.

Yes, but do make sure that any router or modem you buy or is provided by your ISP is Mac supported.

A micro-filter (or splitter) is a special adapter that you need to use on your phone line, so that your telephone does not interfere with your ADSL connection. You will need to install a micro-filter on every extension you use.

An Internet Service Provider is a company that provides connections to the internet for home and business customers. ISPs can also provide other services such as domain name registration, hosting and webmail.

If you have been told that it is unlikely that your phone line can receive ADSL, it's usually because your line is a long distance from the local exchange, and so the chance of it not working is much higher than average.

However, it's still worth ordering ADSL with an ISP, as it can't be said for certain whether or not a line will work until it has been activated. If the line fails to work, BT will not charge your ISP anything, and your ISP should refund you any money they have taken in advance.

Contract length with an ISP varies from product to product and ranges from 1 month upwards. Some service providers may offer longer contract periods in return for lower monthly charges.

This means that you will install and connect your system to the ADSL line; an engineer will not call at your house.

Shortly after placing an order with your ISP (and assuming your line passes the required tests), you'll be assigned an activation date. You will then need an ADSL modem or router, which may (or may not) be provided by your ISP. If buying a router, make sure that it is an ADSL modem router, not just a broadband router. After activation, you should be able to connect to the Internet with the details supplied by your service provider.

An Engineer Assisted installation is a more expensive option than a self-install. An engineer will visit your home or business to connect and configure a modem or router, and answer any questions you may have. Some ISPs may not offer this service.