ISDN dial-up number
Free-dialup offers you an easy way to get online using ISDN.
Our service supports 64K and 128K ISDN, best of all it works
instantly! No sign-ups or contracts and you only pay for the
Our service lets you use the internet via your ISDN connection
without subscribing or joining. All you need to do is enter
the settings below into your PC or MAC and connect. This service
will work with ISDN routers and ISDN modems on PCs, Macs or
All you need to do
is enter following details into your ISDN dial-up network
settings, the service will work instantly, no sign-up needed!
0844 535 2000
128K ISDN ISP
Get online using your ISDN line with our service now. All
you pay for with this service is the calls which cost 3.9
pence mper minute peak time and as little as 1 pence per minute
off-peak. Get blisteringly fast 128k ISDN internet access
What is ISDN?
ISDN (Integrated Services Digital Network) is a set of CCITT/ITU
standards for digital transmission over ordinary telephone
copper wire as well as over other media. Home and business
users who install an ISDN adapter (in place of a telephone
modem) receive Web pages at up to 128 Kbps compared with the
maximum 56 Kbps rate of a modem connection. ISDN requires
adapters at both ends of the transmission so your access provider
also needs an ISDN adapter. ISDN is generally available from
your phone company in most urban areas in the United States
and Europe. In many areas where DSL and cable modem service
are now offered, ISDN is no longer as popular an option as
it was formerly.
There are two levels of service: the Basic Rate Interface
(BRI), intended for the home and small enterprise, and the
Primary Rate Interface (PRI), for larger users. Both rates
include a number of B-channels and a D-channels. Each B-channel
carries data, voice, and other services. Each D-channel carries
control and signaling information.
The Basic Rate Interface consists of two 64 Kbps B-channels
and one 16 Kbps D- channel. Thus, a Basic Rate user can have
up to 128 Kbps service. The Primary Rate consists of 23 B-channels
and one 64 Kpbs D-channel in the United States or 30 B-channels
and 1 D-channel in Europe.
ISDN in concept is the integration of both analog or voice
data together with digital data over the same network. Although
the ISDN you can install is integrating these on a medium
designed for analog transmission, broadband ISDN (BISDN) is
intended to extend the integration of both services throughout
the rest of the end-to-end path using fiber optic and radio
media. Broadband ISDN encompasses frame relay service for
high-speed data that can be sent in large bursts, the Fiber
Distributed-Data Interface (FDDI), and the Synchronous Opical
Network (SONET). BISDN is intended to support transmission
from 2 Mbps up to much higher, but as yet unspecified, rates.