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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.

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