21st Century Network. See NGN.
Describes how much data you can send through an internet
connection and is usually measured in bits-per-second. As a rule,
increased bandwidth equals faster internet connections.
Generic term for high speed internet access.
The fibre ring at the centre of a network that delivers voice
and data around the country.
DNS (Domain Name Server)
DNS is used to map names to IP addresses and vice versa. Domain
Name Servers maintain central lists of domain name/IP addresses and
map the domain names in your internet requests to other servers on
the internet until the specified web site is found.
DSL Access Multiplexor. First generation unbundling
infrastructure, handing off voice and data over DSL between the
customer and the unbundler's backhaul and core network, installed
into BT exchanges.
Internet Protocol: packet switched technology used on the
internet. The method by which both voice and data will be
switched over NGNs.
IP Address (Internet Protocol Address)
Also sometimes called a dotted quad. It is a unique number
consisting of 4 parts separated by dots e.g. 188.8.131.52. Every
machine that is on the internet has a unique IP number - if a
machine does not have an IP number, it is not really on the
internet. Most machines also have one or more Domain Names that are
easier for people to remember.
IPSec (Internet Protocol Security)
A standard for security at the network or packet processing
layer of network communication. IPSec essentially encrypts data to
create secure data transmissions across private and public networks
such as the internet and allows companies to implement VPNs
(Virtual Private Networks) across the internet as a cost effective
alternative to dedicated connections.
BT's wholesale broadband product, currently the staple product
used by mass market ISPs.
ISDN (Integrated Services Digital Network)
ISDN is a type of digital phone/data and internet service that
preceded ADSL and has for the most part been superseded by it.
Internet Service Provider: company selling internet
Metallic Path Facility: BT's name for the copper wire in the
local loop. The technical term for FULL.
Next Generation Network: industry term for future telecoms
networks that will transmit both voice and data traffic on an
all-IP platform. See also 21CN.
Next Generation Switch: BT's latest trunk exchanges replaced
Shared Metallic Path Facility: shared use of unbundled copper
loop. Technical term for PULL.