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Digital Signal 1 Service
Description
ISDN
T-1
Multiquest
Service
An incoming 900
x
With DNIS
number that provides
callers with voice
and data information
service on an
interactive basis.
software
Defined
A virtual private x
x
Network
(SDN)
networking service
Service
for voice and circuit
switched data calls
(Up to 56 Kbps).
SDN lets businesses
use portions of the
AT&T
Switched
Network in concert
with their dedicated
private
line
networks.
The
system, however,
does not support
“uniform
dialing
plan,”
which is
necessary
for
complete integration
with SDN.
ACCUNET Switched A digital switching x
Digital Service
service
between
subscriber data
stations and far-end
connection. Useful
for batch data or file
transfer, high-speed
faxes, etc.
Digital
Data LEGEND supports it
x
Transmission
in
ISDN-PRI.
LEGEND does not
support it in straight
T-1.