Nortel Modular Ics 6.0 Installer Guide

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Services and features for ISDN PRI and BRI
As part of an ISDN digital network, your Modular ICS 
supports enhanced capabilities and features, including :
faster call setup and tear down
high quality voice transmission
dial-up Internet and local area network (LAN) access
video transmission
network name display
name and number blocking (PRI, BRI and analog)
access to public protocols (only NI-1 for BRI)
PRI services and features
call...

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BRI services and features
data transmission at speeds up to 128 kbps per loop, 
depending on the bandwidth supported by your service 
provider
shared digital lines for voice and data ISDN terminal 
equipment
Norstar Basic Rate Interface (BRI) cards also support 
D-channel packet service between a network and terminal 
connection. This allows you to add applications such as point-
of-sale terminals without additional network connections....

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Transmission of B-channel packet data is not supported by 
Modular ICS.
Contact your ISDN service provider for more information 
about these services and features. Packages for ISDN service 
in North America are described on page 56.
The terminal equipment (TE) connected to the Norstar system 
can use some feature codes supported by the ISDN service 
provider. Refer to ISDN services and features in the Modular 
ICS 6.0 System Coordinator...

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Instead, the call will be handled in one of these ways:
If Call Forward on Busy is programmed, the call will ring 
if a free key is available. Otherwise, it goes to the Prime 
set. DND Busy programming is ignored.
If Call Forward All Calls is programmed, the call will go 
to the Prime set.
If Call Forward No Answer is programmed, the call will 
continue to ring at the destination.
Note:  If a terminal rejects a call, the call goes to the...

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MCDN trunk features
Systems with MCDN Private Networking connections can 
provide these trunk routing features:
Trunk Route Optimization (TRO) finds the most direct 
route through the network to send a call between nodes. 
This function occurs during the initial alerting phase of a 
call.
ISDN Call Connection Limitation: The ICCL feature 
piggybacks on the call initiation request and acts as a check 
at transit PBX points to prevent...

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For services information about dialing plans and PRI, see 
Networking with Norstar on page 91 and Dialing Plan on page 
412.
Refer to the hardware section for Call-by-call routing on page 
458. 
Emergency 911 dialing
Modular ICS 6.0 with the ISDN PRI feature is capable of 
transmitting the telephone number and internal extension 
number of a calling station dialing 911 to the Public Switched 
Telephone Network. 
State and local requirements...

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The routing table should route 911 to a public line or line 
pool.
If attendant notification is required, the routing table must 
be set up for all 911 calls to use a dedicated line which has 
an appearance on the attendant console.
Note:  The actual digit string 911 is not hard-coded into the 
system. More than one emergency number can be 
supported 
MCID (Profile 2)
The MCID feature allows you to use ²¡áà to have 
call information...

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ISDN hardware
To support connections to an ISDN network and ISDN 
terminal equipment, your Modular ICS must be equipped with 
one or more BRI Cards (BRI-U or BRI-ST) , a DTI card 
configured for PRI, and a Combination Fiber 6-port Services 
Cartridge or a Services Cartridge.
DTI Card configured as PRI
A DTI card configured as PRI provides one T loop. Refer to 
T reference points on page 51 for more information.
In most PRI network...

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Detailed wiring information for BRI and PRI network and 
terminal connections is included in the Installation on page 
209.
BRI-U2 and BRI-U4 card
A BRI-U2 card supports two loops and the BRI-U4 supports 
four loops. Each loop can be individually programmed to 
provide one of the following:
a U-LT reference point connection for terminal equipment 
(TE) with built-in NT1 functionality (U interface)
a U-NT reference point connection for...

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A U-LT loop supports up to eight ISDN DNs, which identify 
TE to the ICS.
U-NT reference points
The U-NT reference point connection provides a point-to-
point digital connection between the ISDN network and the 
ICS.
A U-NT loop provides lines that can be used by all Norstar 
telephones, peripherals and applications, and ISDN TE.
U-NT and U-LT loops can be used in combination to provide 
D-packet service for a point-of-sale terminal adapter...