Prior to the
advent of DSL there were not many high-speed solutions for the
home or office. One such is ISDN (Integrated Services Digital Network),
which is a dial-up symmetrical service that allows speeds from
64Kbps to 128Kbps. Dedicated ISDN lines can reach up to 256Kbps.
The
problem with ISDN is that it is incredibly expensive, especially
in light of current broadband pricing available today. It is
also not as quick as cable or DSL. This makes ISDN the least favorable
of all other broadband types and is only practical under very isolated
cases where it is the only option available.
