Nortel Modular Ics 6.0 Installer Guide

P0992638 03Modular ICS 6. 0 Installer Guide
Remote system access
The remote access feature allows callers elsewhere on the 
private or the public network to access a Norstar system by 
dialing directly without going through an attendant. Once in 
the system, the remote user can use some of the system 
resources. The remote access must be enabled in programming 
before callers can use it.
Norstar systems support remote system access on the 
following trunk types which may require the remote caller to...

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Remote access on loop start and E&M trunks
Loop start trunks provide remote access to Norstar from the 
public network. E&M trunks provide remote access from a 
private network. Each must be configured to be auto-answer to 
provide remote system access. 
A loop start trunk must have disconnect supervision if it is to 
operate in auto-answer mode. E&M trunks always operate in 
disconnect supervised mode.
When a caller dials into the...

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The DISA DN and the Auto DN allow auto-answer private 
network and DID calls, in the same way that calls on 
auto-answer loop start and auto-answer E&M trunks can be 
answered, with or without DISA. These DNs are described in 
System prgming under Access codes.
Remote access on Direct Inward Dial (DID) trunks
Remote system access on DID trunks is similar to that of E&M 
trunks connected to a private network.
The main differences are:...

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P0992638 03Modular ICS 6. 0 Installer Guide
Controlling system access
Modular ICS programming provides several ways of 
protecting your Norstar system from unauthorized access or 
use. These features are used in combination to provide control 
both to users and to lines.
Class of Service
Class of Service (COS) refers to the capabilities that Norstar 
provides to users who access the system from the public or 
private network. A password defines which set of capabilities 
the user is to have access to....

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Restriction filters
Restriction filters can be used to restrict the numbers that may 
be dialed on any external line within your Norstar system. Up 
to 100 restriction filters can be created for the system.
A restriction filter consists of up to 48 restrictions with 
associated overrides.
To restrict dialing within the system, you can apply filters to:
outgoing external lines (as line restrictions)
telephones (as set...

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Line restrictions
In the previous diagram, a caller using line 1 could only dial 
long-distance numbers to area codes 212 and 718. A caller 
using line 3 could not dial any long-distance numbers. A caller 
using line 5 could dial long-distance numbers to area codes 
212, 718, and 415.
Line/Set
restriction Set restriction
line 1
line 3
line 5
Line restriction
line 1
line 3
line 5
no long
distance
except
area codes
212, 718, 415no...

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Remote caller restrictions
In this case, dialed digits must pass both the remote restriction 
and the line restriction. A remote caller can override these 
filters by dialing the DISA DN and entering a COS password. 
For restriction filter programming instructions, see 
Restrictions on page 322 and the Modular ICS 6.0 System 
Coordinator Guide.
Tips - Set restrictions have no effect on numbers dialed on 
an E&M trunk.
To restrict...

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Direct inward system access (DISA)
To control access from the public or private network, you can 
configure auto-answer trunks to answer with DISA. Remote 
callers hear a stuttered dial tone and must then enter a COS 
password. The password they enter determines what access 
they are allowed in the system.
Auto-answer loop start and E&M trunks are configured to 
answer with DISA by default. For DISA programming 
instructions, see...

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