Nortel Modular Ics 6.0 Installer Guide

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P0992638 03Modular ICS 6. 0 Installer Guide
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 by call service selection
dialing plan
Emergency 911 dialing, internal extension number 
transmission
Advanced Private Networking to Meridian 1 using SL-1 
protocol, providing 
–access to central Voice Mail and Automated Attendant 
equipment connected to the Meridian system
–trunk route optimization (TRO)
–Message Waiting Indication (MWI) from the Voice 
Mail application
–Network Call Redirection Information (NCRI), which 
is built on the existing Call Forward and Call Transfer 
features
tandem networking between Norstar systems 
						

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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. 
Any analog or digital network connections can be shared by all 
Norstar telephones, peripherals and applications, and ISDN 
terminal equipment (TE).
Modular ICS supports the following ISDN services and 
features offered by ISDN service providers:
D-channel packet service (BRI only) to support devices 
such as transaction terminals. Transaction terminals are 
used to swipe credit or debit cards and transmit the 
information to a financial institution in data packets. 
calling number identification, which appears on both 
Norstar sets and ISDN terminal equipment with the 
capability to show the information
Multi-Line Hunt or DN Hunting which switches a call to 
another ISDN line if the line usually used by the Network 
DN is busy. (BRI only)
subaddressing of terminal equipment (TE) on the same 
BRI loop. However, terminal equipment which supports 
sub-addressing is not commonly available in North 
America.(BRI only) 
						

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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 Guide for more information.
Feature descriptions
The following section provides brief descriptions about the 
ISDN features, and links for more programming information.
Network name display
This feature allows ISDN to deliver the Name information of 
the users to those who are involved in a call that is on a public 
or private network. For information on system programming 
of this feature see, BusName on page 429.
Systems with Advanced Private Networking connections 
(MCDN SL-1) to a Meridian system also retain information 
about sets that have forwarded or transferred a call, as well as 
the originating caller information.This feature is called 
Network Call Redirection Information (NCRI). This 
information is available to all parties involved in the call.
Calls can only be redirected a defined number of times within 
the network. This is currently hardcoded to five times. Once 
this limit is reached, call redirection will be disallowed 
regardless of the type of outgoing line being presented for 
redirection. 
						

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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 Prime set, 
if a Prime set is configured for the target line. If the 
target line is configured to send a busy tone, the call 
gets released with the reason as User Busy.
Message Waiting Indicator (MWI)
Systems with Advanced Private Networking connections to a 
Meridian system Voice Mail system provide message-waiting 
indicators at telephones connected to those lines. Telephones 
with displays display a message. Non-display terminals may 
have a lamp that lights when a message is waiting. The setting 
for this feature is defined from the Meridian system.
Name and number blocking
This feature suppresses the outgoing name and/or number on 
a call by call basis. For information on system programming of 
this feature see, Outgoing Name and Number Blocking on 
page 432.
External call forwarding
The system now allows you to forward calls to an external 
number. This feature is activated using 
² Ýfrom the 
telephone.  
						

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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 misconfigured routes or 
calls with errors from blocking channels.
Trunk Anti-tromboning (TAT) is a call-reroute feature that 
works to find better routes during a transfer of an active 
call. This feature acts to prevent unnecessary tandeming 
and tromboning of trunks. This action occurs after the 
speech path has been established.
Call by Call service selection for PRI
Call by Call service selection allows a user to access services 
or private facilities over a PRI line without the use of dedicated 
facilities. Various types of services such as FX, Tie, and 
OUTWATS are available, depending on the Protocol that is 
selected. Private network settings are used for tandem 
networking and Advanced Private Networking.
Outgoing calls are routed through a dedicated PRI Pool and the 
calls can be routed based on various schedules. 
For information about system programming of this feature, see 
Programming Call by Call service selection on page 436.  
						

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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 for support of Emergency 911 
dialing service by Customer Premises Equipment vary. 
Consult your local telecommunications service provider 
regarding compliance with applicable laws and regulations. 
For most installations, the following configuration rules 
should be followed, unless local regulations require other 
settings.
All PSTN connections must be over PRI.
In order for all sets to be reachable from the Public Safety 
Answering Point (PSAP), the system must be configured 
for DID access to all sets. In order to reduce confusion, the 
dial digits for each telephone should be configured to 
correspond to the extension number (DN).
The OLI digits for each telephone should be identical to 
the DID dialed digits for the telephone.
The System Coordinator is responsible for maintaining a 
site map or location directory that allows emergency 
personnel to rapidly locate a telephone given its DID 
number. This list should be kept up to date and readily 
available, and can be included in the Programming Record 
						

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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 recorded on the central office database for an 
incoming call on a specific line (EUROISDN lines, only).
The user must invoke the feature code during the active call or 
within 30 seconds (time varies on different networks) after the 
caller hangs up. The user must remain on the line to enter the 
code.
Network Call Diversion (Profile 2)
This feature is a network function of ETSI E1 lines that allows 
forwarding and redirection of calls outside the Norstar 
network when using an ETSI ISDN line. Functionality is 
similar to that of External Call Forward (ECF). NCD redirects 
calls using the same line on which they arrive. Call forward is 
efficient since there is no need for additional outside lines.
DTI card configured as a PRI card
The DTI card on your Norstar system can be configured to 
support PRI. For information on configuring a DTI card as a 
PRI type card, see Provisioning the DTI card for PRI on page 
456. 
						

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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 configurations, you need one DTI card 
configured as PRI in your ICS to act as the primary clock 
reference. The only time when you may not have  PRI 
designated as the primary clock reference is in a network 
where your Norstar system is connected back-to-back with 
another switch using a PRI link, such as is the case with the 
Advanced Private Networking configuration.
However, if the other switch is loop-timed to your Norstar 
system, your DTI card, configured as PRI, can be designated 
as a timing master. 
If your Norstar has two DTI cards configured as PRI, you 
cannot assign both cards as the primary reference or both cards 
as the secondary reference . You can only have one primary 
reference and one secondary reference per system.  Refer to 
ClockSrc on page 464 for more information.
BRI Card
The loops on BRI-U and BRI-ST cards can be programmed to 
support either network or terminal connections. This allows 
you to customize your arrangement of lines, voice terminals, 
data terminals and other ISDN equipment.  
						

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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 direct connection to 
an ISDN network
BRI-ST card
A BRI-ST card provides four loops. Each loop can be 
individually programmed to one of the following:
an S reference point connection (S loop) to ISDN terminal 
equipment (TE)
a T or S reference point connection (T loop or S loop) to an 
ISDN network using an external NT1
U-LT reference point
The U-LT reference point connection provides a point-to-
point digital connection between Norstar and TE equipped 
with a U interface. 
						

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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 (POSTA) 
or other D-packet device. D-packet service is a 16 kbps data 
transmission service that uses the D-channel of an ISDN line.
To deliver D-packet service, a network connection (U-NT) is 
programmed to work with a terminal connection (U-LT). The 
loops must be on the same physical card. For example, if the 
point-to-point
U-LT
ICS
U interface TE
network
 connection
U-NT
ICS
ISDN