1. Group Web Presentation : Week 11
How Circuit-Switched Digital Networks Work
text book page 172-173
s1160014 Shuhei Ikari
s1160018 Hikaru Ishikawa
s1160019 Narumi Ishige
s1160021 Hayato Izumi

2. Abstract
The central office's router calls the
central office switch. And explain about
Central office switch having two work.

3. Concept
The concept explain about ISDN networks
conection. There is more fast.

4. Concept
The central switch have two work to
access other distination.
And ISDN equipment uses a special thing
for fast-call setup.

5. Concept
The central office switch works with other
similar switches to route and complete
a call. This is the most important point
to use network and phone.

6. Concept
And the central office switch accepts the
incoming call and makes adigital conection t
o the distination. The distination router
senses the incoming call and makes a connect
-ion to the LAN. It is important for access.