What is a Leased Line?
A leased line is the most common type of permanent high-speed
connection to the Internet. It is a direct connection between
a network and an Internet Service Provider which is provided by
a telephone company such as BT.
It is mostly used by large networks or Web servers which require
faster connection speeds than a modem can offer. The line is a
permanent 24 hour connection, which is available in a range of
capacities:
- A 64K leased line uses standard telephone wire and is the
least expensive type of connection.
- . A T1 connection can carry data at 1.544 Mbps, approximately
27 times the capacity of a 56K line.
- A T3 connection is a costly high capacity trunk line, and
is only usually used by large Internet Service Providers and
corporations.
Dial-up connections also have numerous standards and systems
to cope with: V.34, X2, K56, V90, BRI, PRI, ISDN30, Euro ISDN,
ISDN2e, BT Highway - the list goes on. Supporting all of these
is an extremely complex task. Your modem or TA needs special drivers,
your ISDN router needs careful configuration, your ISP needs to
support your hardware, your hardware vendor needs to support you.
Leased line standards are simple and well established - your
router is supplied, configured and managed remotely on an ongoing
basis by us.
ISDN routers are prone to line spoofing errors. Everyone that
deals with ISDN routers knows that they never do exactly what
they say on the box! If you have a badly configured ISDN router,
or your network has a lot of traffic, going on holiday without
knowing if your router is working properly is an inherent drawback
with dial-up access. Do you really want to spend any of your time
away worrying about telephone bills?
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