December 2001
Intermediate to advanced
656 pages
27h 19m
English
Content preview from Networking Explained, 2nd Edition
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Chapter 11: Integrated Services Digital Network (ISDN) 381
nent, users do not have to manually make a connection to the Internet every time they want
to check for e-mail or stock quotes. AO/DI is also appealing to service providers because it
reduces the number of B channels they have to nail up.
In short, AO/DI represents a technology that satisfies users and providers. Users, at
best, get free service, and at worst, reduce the cost of their service. Telcos, on the other
hand, still get to provide the service, but their switches become less saturated because the
amount of B channel transmissions is reduced. AO/DI is a win-win solution for everyone. ...
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