Nortel Modular Ics 6.0 Installer Guide

							P0992638 03Modular ICS 6. 0 Installer Guide
Networking with Norstar
There are a number of ways you can network Norstar systems 
together, or network Norstar systems with other Nortel 
systems into private networks. What types of lines you use to 
perform the networking will determine the type of services 
that can be shared between systems. 
Keep in mind, that each node (Norstar system) is considered 
an external system by every other node within the network, 
even though, to the users, it appears to be all one system. This 
affects how you configure call transfer and call out features on 
each system. On the home node, all features are configured as 
local numbers. On all other nodes, all features are configured 
with external numbers.
As well, each node must have a unique identifying code. What 
this code will be, and how it is configured for the user, depends 
on what type of trunks and dialing rules you choose to use.
This section describes various configurations of private 
networks. The general settings that are required to set up the 
home node for each system is provided to give you a sense of 
what is required for each type of network.
The common goal is to provide the user with the sense that the 
network is one large system that provides common access to 
colleagues in other buildings, cities, or countries. In some 
systems they may need to enter a destination code before the 
local number to routes the call to the correct system. In other 
systems, using a common dialing plan allows users to dial 
colleagues at any location simply by entering the same number 
of digits they would use to dial a colleague at the next desk. 
						

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Tie-line networking
Norstar uses enhanced trunking to join other Norstar or 
customer equipment in a private network. This allows 
authorized users access to tie lines, central office lines, and 
Norstar features from outside the Norstar system.
Callers using the Norstar Modular ICS system can:
call directly to a specific Norstar telephone
select an outgoing tie line to access a private network
select an outgoing tie line to access features that are 
available on the private network
select an outgoing central office line to access the public 
network
use all of the Norstar features
Callers in the public network can:
call directly to one or more Norstar telephones
call into the Norstar system and select an outgoing tie line 
to access a private network
call into the Norstar system and select an outgoing central 
office line to access the public network
DID trunks
Loop start trunks
PRI trunks BRI trunksPublic/Private
Networks
T1 trunks
E&M trunks
Norstar
PRI SL-1 trunks 
						

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call into the Norstar system and use remote features
Callers in the private network can:
call directly to one or more Norstar telephones
call into the Norstar system and select an outgoing tie line 
to access other nodes in a private network
call into the Norstar system and select an outgoing central 
office line to access the public network
call into the Norstar system and use remote features
Norstar behind a PBX
Norstar Modular ICS can be used behind a PBX. In order to 
support this application, the trunk lines must be set up not to 
exceed 8 dB total loop loss from the serving central office to 
the connection point at the Norstar ICS. 
						

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Dialing plans
Dialing plans allow users to enter consistent dialing 
information to call other systems, or out to a public network 
through another system. The type of network determines what 
kind of dialing scheme is required.
The Norstar system has routing features that allow you to set 
up a transparent dialing plan with other systems in a public or 
private network. In a private network, you can choose to use 
either a uniform dialing plan (UDP) or a coordinated dialing 
plan (CDP) to determine how the system recognizes private 
network dialing strings.
A networked system uses the Public DN length to determine 
the number of digits that must be collected before the call is 
dialed outside each node on the system. Calls routed over 
private networks using CDP also use the public DNs in concert 
with a destination code that determines the routing of dialed 
DN. With CDP, the node identifier is included in the dialed 
DN string and is unique to each node.
Calls routed over private networks using UDP require a 
private DN length, since each node requires an identification 
code in the dialing string, which makes the DN length different 
than for a public-routed call.
If you create a network-wide dialing plan using CDP:
all telephone DNs across the network need to be the same 
length (Public DN length)
the first digit of the DN must be unique to each system, i.e. 
node A has DNs 2222 to 2999, node B has DNS 3222 to 
3999, and so on. 
						

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you indicate that you are using a coordinated dialing plan 
(System Programming/Dialing Plan/Private 
network)
you create access codes that are routed out on auto-answer 
lines connected to the other sites (Access Codes and Call 
Routing)
a telephone can be reached using the access code and the 
telephone number, regardless of where the call originates 
in the network
If you are networked using UDP:
you indicate a private DN length, which is the number of 
digits required to access sets in the system (System 
Programming/Dialing Plan/Private network)
each system has a unique location code (System 
Programming/Dialing Plan/Private network)
you indicate that you are using a UDP dialing plan 
(System Programming/Dialing Plan/Private 
network)
you set up private access codes (Access codes/Private 
access codes)
a telephone in another node is accessed using the access 
codes, the location code, and the  telephone DN.
Any programming for routing and access codes should be 
carefully planned using the tables supplied with the 
Programming Record. The settings for routing and destination 
codes are fully explained in Services on page 353. 
Note:  Network access codes must not conflict with access 
codes used for other purposes. 
						

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Dialing plan using public lines
For example imagine that you have a system in a network of 
three offices such as New York, Toronto, and Santa Clara.
If there is no routing, callers would have to dial this way:
A Norstar user in New York would have to select a line 
pool and dial a number such as 1-416-555-3227 to reach 
telephone 3227 in Toronto (416). 
If there is routing:
you could create a destination code of 3, and create a route 
that uses the proper line pool and DialOut. In this case, the 
user simply dials 3227, the receiving telephone DN being 
227.
In the DialOut, P stands for pause, a host system signalling 
option. Press ²à¡ to insert a 1.5-second pause in the 
dialing string. See the Modular ICS 6.0 System Coordinator 
Guide for information about other signals.
Destination code numbering in a network
Because the system checks the initial digits of a call against the 
routing tables, each type of internal or external call must begin 
with a unique pattern of digits. The following table gives a 
sample plan for how initial digits are assigned in a network of 
systems with three-digit DNs. 
Leading DigitsUse
0Network Direct Dial
221-253 (default)Intercom calls (DNs)
4Coordinated Dialing Plan
5Unused
6Unused
8Call Park Prefix
9All PSTN Calls 
						

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In the table, 4 is used as the initial digit for the Coordinated 
Dialing Plan (CDP), but 5 or 6 could also be used for this 
purpose.
For PRI you need to define a route with a routing code, then 
assign that code to the telephone.
Dialing plan using E&M lines
By properly planning and programming routing tables and 
destination codes, an installer can create a dialing plan where:
E&M lines between Norstar systems are available to other 
systems in the network
The following figure and programming chart shows how to 
configure a transparent dialing plan for a network of three 
Norstars over E&M lines. 
Each system must be running the same version of 
MICS 6.0 or MICS-XC 6.0 software. 
Each system must be equipped with target lines and a 
Trunk Module with an E&M/DISA Trunk cartridge or an 
ICS with a DTI with at least one E&M line. 
						

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Routing by destination codes over E&M lines
HeadingParameterSetting 
New York:
Trk/Line DataLine 049E&M
Ans ModeAuto
Line typePool H
Line 245Target line
Rec’d #2221
Line AccessDN 2221L245: Ring only
Line pool accessLine pool H
New York
Network #: 2221
Red’d #: 2221
Internal #: 2221To r o n t o
Network #: 6221
Red’d #: 6221
Internal #: 6221
Santa Clara
Network #: 4221
Red’d #: 4221
Internal #: 4221 Pool H
Pool BPool N
E&M trunk
E&M trunk
Pool M 
						

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To Santa Clara:
Routing serviceRoute001
UsePool H
DialOutNone
DestCode4
Normal rte001
Absorb0
To Toronto :
Routing serviceDestCode6
Absorb0
Normal rte001
Santa Clara:
Trk/Line DataLine 050E&M
Ans ModeAuto
Line typePool M
Trk/Line DataLine 049E&M
Ans ModeAuto
Line typePool B
Line 250Target line
Rec’d #4221
Line AccessDN 4221L250: Ring only
Line pool accessLine pool B
Line pool M
To New York:
Routing serviceRoute001
UsePool M
DialOutNone
DestCode2
Absorb0
HeadingParameterSetting  
						

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Normal rte001
To Toronto:
Routing serviceRoute002
UsePool B
DialOutNone
DestCode6
Absorb0
Normal rte002
Remote accessRem access pkgs01 
Line pool accessPool M: ON
Rem access pkgs02
Line pool accessPool B: ON
Line abilities049
Remote pkg01
Line abilities050
Remote pkg02
Toronto:
Trk/Line DataLine 053E&M
Ans ModeAuto
Line typePool N
Line 260Target line
Rec’d #6221
Line AccessDN 6221L260: Ring only
Line pool accessLine pool N
To New York:
Routing serviceRoute001
UsePool N
DialOutNone
DestCode4
HeadingParameterSetting