Isdn (Integrated Services Digital Network); Isdn Support; Isdn Connectivity; Isdn Primary Rate Interface - Mitel 3300 ICP General Information Manual

ISDN (Integrated Services Digital Network)

ISDN Support

The Integrated Services Digital Network (ISDN) transmits voice, data, and video at high speeds.
ISDN services can be deployed and accessed at enterprise, department, and desktop levels by
adding the 3300 Universal NSU with PRI or the 3300 BRI NSU to the 3300 ICP.
LAN traffic can also be carried over existing private or public digital network connections on Euro
ISDN, DASSII (public access) protocols, or even on a private MSDN/DPNSS network using ISDN
connections to a router.

ISDN Connectivity

ISDN access lets customers leverage the advantages of ISDN network services for both voice and
data applications, effectively improving performance and network resource management while
controlling costs.
The 3300 ICP supports multiple ISDN protocols and provides ISDN connectivity. The system
connects with the ISDN public network and data devices (such as routers, video conferencing
equipment, and servers) by using Primary Rate Interface (PRI) or Basic Rate Interface (BRI). ISDN
takes advantage of the following features to capture and control costs, analyze peak periods, and fine
tune network resources accordingly for both voice and data calls:
•
ARS/LCR (Automatic Route Selection / Least Cost Routing)
•
SMDR (Station Message Detail Recording)
•
Min/Max Traffic Control
•
Per Call Service Selection
•
Limited Toll Restriction
•
Trunk Diagnostics
•
NFAS (Non-Facility Associated Signaling)
•
Remote LAN Access.

ISDN Primary Rate Interface

ISDN Primary Rate Interface (PRI) has become the most cost-effective enterprise solution for IT
managers responding to increased demands for remote LAN access, Internet and intranet access,
off-site desktop and group video conferences, and a host of other inbound and outbound data
applications.
Using ISDN PRI all inbound and outbound services that are usually obtained by using different trunk
types (such as INWATS, OUTWATS, FX, Tie, and DID) can be accessed with a single ISDN trunk; as
a result, the number of trunks can be reduced by 10 to 15 percent. On outbound calls, the system
requests the required service from the Network and the trunk takes on the requested characteristics
for the duration of the call.
At the same time, ISDN supports enhanced voice communications capabilities. These capabilities
include Caller Line Identification Delivery (CLID), Automatic Number Identification (ANI), and Dialed
Number Identification Service (DNIS). These options allow you to know who is calling and facilitate
call center and CTI applications, fast call set-up, call-by-call, and Min/Max for reduced trunking. ISDN
delivers the highest degree of voice clarity of any transmission medium available.
3300 ICP General Information Guide
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