Inside this section
[ DSL vs. Dialup ] [ DSL vs. ISDN ] [ DSL vs. Cable ] [ DSL vs. T1 ] [ Additional Facts ]
DSL vs ISDN
ISDN stands
for Integrated Services Digital Network. DSL is superior to ISDN for several
reasons:
ISDN is
inflexible, as it is only available in two speeds: 64 Kbps and 128 Kbps. DSL
scales from 128 Kbps to 1.5 Mbps. and beyond. ISDN offers dedicated, always on
access but comes with additional per-minutes charges. Usually fees to the phone
company run $30 a month plus 3 cents a minute for the first minute and 2 cents
for every minute connected thereafter. A dedicated 128 Kbps ISDN line on 24 X 7
would cost hundreds of dollars per month in usage fees to the local phone
company. On top of that, your ISP will charge an additional $30-150/month. If
your business needs to be online with ISDN for as little as one hour a day, you
pay more than 24 X 7 basic 192 Kbps DSL. Additionally, unlike DSL, ISDN requires
the installation of special digital circuits. DSL uses regular phone lines
making installation faster and less complex.
