Norstar dr4 User Guide

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Modular

Installer

Guide

Planning a network with

Components

Hardware installation

Introduction to programming

Startup

Configuration

Administration

Maintenance

Hardware upgrades

Troubleshooting

2 3 4

Network troubleshooting

Telephone features

Telephone user cards

Technical data

Glossary 15

Planning a network

with

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What’s new about 1

The Big Picture 2

Bits and pieces 2 Benefits 3 Customer use 3

Bits and pieces 5

E&M Trunks 7

Configuration requirements 9

DID Trunks

Configuration requirements 11

Loop Start Trunks 12

Configuration requirements 13

Contents i

Benefits 14

Security 14

Class of Service 14

Dialing filters 15 Direct inward system access (DISA) 17

Unified dialing plan 18

Directory Numbers 18 Line pools 18 Line Pool access codes 18

Unified dialing plan among four systems

Call handling capabilities 20

Auxiliary Ringing 20 Callback 20 Camp on 20

Delayed Ring Transfer 20 Held Line Reminder 21 Overflow Call Routing 21 Prime Telephone Call Capture features 21

Planning a network with

ii Contents

Customer Use

In the public network 23

In the private network 30

In the system 36

Privacy 21 Service Modes 21

Call one or more Call and select tie lines to the private

network 24

Call

Call and use the paging feature 28

Call one or more Call private network 31 Call

Call and use the paging feature

Call a Select tie trunks to the private network Select lines to the public network

Use system features 39

and select lines to the public network

and select tie lines to other nodes in the

and select lines to the public network

telephone 36

telephones

telephones 30

Planning a network with

What’s new about 1

at’s new about

Modular Design Release 4 can now be part of your

corporate telecommunications network. You can connect

to your existing private network, or to other

systems to form a network.

As a Network Manager, you understand your network, but you want to know how can add to your network. This chapter will explain:

how components behave in a network, how they benefit your business, and how you can configure to achieve those

benefits.

This chapter will not teach you about telecommunications networks, and it will not teach you about in general.

If you want to know more about see the other

chapters in the Modular DR4 Installer Guide.

Planning a network with

2 What’s new about

The Big Picture

E &M trunks

Private network

Public network .

Modular is a digital key system that enhanced

trunking abilities to broaden network access. Where a

company once had to rely on the public network to access a small branch office, it can now reach the small office through the corporate network.

A series of systems can be linked together to extend the communications reach of a business. Authorized users can also access tie-lines, Central Office lines, and features from-outside the system.

Bits and pieces

The components that make network access possible are the trunks and lines that uses. Target lines concentrate

incoming calls on fewer trunks, and three types of trunks

provide the network access:

E&M trunks handle incoming and outgoing traffic

between the system and the private network.

DID trunks route incoming calls from the public network directly to telephones within the system,

without an attendant.

Loop Start trunks handle incoming and outgoing calls between and the public network.

Planning a network with

Benefits

Security

provides the security that expanded access

demands:

Control remote access to tie-lines, Central Office lines, and system features by setting up a specific Class of Service for each type of caller.

Restrict outgoing calls to certain telephone numbers or area codes by applying dialing filters to lines and telephones.

Screen remote callers by configuring trunks to answer with DISA, a system response that requires callers to enter a valid password.

Unified dialing plan

What’s new about 3

When you link a number of systems into a network, you can configure them so that the length of Directory Numbers codes are consistent from one system to the next.

the line pools, and the Line Pool access

Call handling capabilities

In the system, the concentrated environment

supports call handling features on up to 184 lines, of which

80 are physical trunks and 104 are target (virtual) lines.

Customer use

Callers in the public network can:

call directly to one or more telephones.

call into the system and select tie lines to access the private network.

call into the system and select outgoing Central Office lines to access the public network.

call into the system and use remote features.

Planning a network with

4 What’s new about

Callers in the private network can:

call directly to one or more telephones. call into the system and select outgoing tie

lines to access other nodes in the private network. call into the system and select outgoing Central

Office lines to access the public network.

call into the system and use remote features..

Callers in the

call directly to a specific telephone: select outgoing tie lines to access the private network. select outgoing tie lines to access features that are

available on the private network. select outgoing Central Office lines to access the public

network. use all of the features, including two new ones:

Line Redirection and Unsupervised Conference with

two external parties.

system can:

Planning a network with

its and pieces

To understand the capabilities that are described later in this

chapter, you need to know how the trunks and lines behave in the

Modular system.

Bits and pieces 5

A trunk is a physical connection between the and the outside world. A line is a flexible communication path between a one-to-many relationship between trunks and lines.

What this means is that one trunk does not have to represent one line, but can represent several lines. You achieve this in two ways:

Auto-answer trunks many lines, you configure it as Auto-answer. The

system answers calls and maps incoming digits onto numbers that you define in programming. The numbers can access the system, so that callers can then use selected features or call out to another destination (calling through the system). The numbers can also access target lines that appear on one or

of the next paragraph.

user and the outside world. This allows a

If you want one trunk to serve

telephones. Target lines are the subject

system

Target lines

onto a number of different target lines. These are virtual lines that can appear on a other line. They are incoming lines only, and can not be selected for outgoing calls. They are identified to the system by their number. Any line with a number from 081 to 184 is a target line.

Of course, you can still have a one-to-one relationship between a trunk and a line. In this case, you configure the trunk as manual-answer.

incoming calls on one trunk can map

telephone like any

Planning a network with

6 Bits and pieces

You can read more on target lines in the Configuration chapter of the Nor-star Modular DR4 Installer Guide. To learn more about the types of trunks and the important differences between auto-answer and manual-answer trunks, read on.

Planning

a network with

Trunks

PRX

Key system

intelligent network

Bits and pieces 7

Trunk

, cartridges

Key

An E&M trunk gives incoming and outgoing tie-line access from other systems in the private network to the

system. E&M trunks can be configured as manual-answer or auto-answer.

When a call comes in on a manual-answer E&M it

alerts at all telephones with that line appearance.

When a call comes in on an auto-answer E&M trunk, the

system responds:

Planning a network with

8 Bits and pieces

When a call comes in on an auto-answer E&M trunk from an intelligent network, the interprets the incoming digits:

If the trunk is configured to answer with DISA, the caller hears stuttered dial tone. The caller must then use a DTMF telephone to enter a 6-digit Class of Service (COS) password.

If the trunk does not have DISA, or if the password is valid, the caller hears system dial tone. The caller can then use a DTMF telephone to enter a target line

number, the

COS password), a Line Pool access code, or a remote feature code.

If the digits map onto a target line, routes the

call to all

line.

DN (the number that will call for a

system answers the call and

devices with an appearance of that

If the digits map onto the DN, the caller hears

stuttered dial tone, after which the caller must use a

DTMF telephone to enter a valid Class of Service password to get system dial tone.

If the digits map onto the Auto DN (the number for direct system access), the caller hears system dial tone, after which the caller can use a DTMF telephone to enter a target line number, the

access code, or a remote feature code.

To place an outgoing call, a caller selects an E&M trunk by dialing a Line Pool access code or by pressing a line button on the telephone or by pressing a memory button which has been programmed with a Line Pool access

DN, a Line Pool

Planning a network with

Bits and pieces 9

Configuration requirements

In your configuration, you need one Trunk Cartridge for every:

2 E&M trunks. 2 DTMF receivers that you require for on Loop

Start trunks.

You may configure an E&M trunk as the prime line for

telephone.

Planning a network with

Bits and pieces

593-1234

Central off ice

DID trunks give you direct inward dialing (DID) from the

public network to the

system. A typical application of

these trunks is to map incoming digits onto target line appearances within the

system. DID trunks can

operate only as auto-answer trunks.

Planning a network with

Bits and pieces 11

When a call comes in on a DID trunk, interprets the

incoming digits:

If the digits map onto a target line, routes the call to all devices with an appearance of that line.

. .

If the digits map onto the DN, the caller hears stuttered dial tone, after which the caller must use a

DTMF telephone to enter a valid Class of Service password to get system dial tone.

If the digits map onto the Auto DN, or if the COS

password is valid, the caller hears system dial tone. The caller can then use a DTMF telephone to enter a target line number, a Line Pool access code, or a

remote feature code.

Configuration requirements

You need one DID trunk cartridge for every four DID trunks.

Each DID Trunk Cartridge has four DID trunks and four DTMF receivers dedicated to those trunks.

You can not configure a DID trunk as the prime line for a

telephone.

Planning a network with

12 Bits and pieces

Start

Trunks

Loop Start trunks give you incoming and outgoing access to

the public network. However, you would typically configure

your system with Loop Start trunks for outgoing calls and DID trunks for incoming calls. Loop Start trunks can be configured as manual-answer or auto-answer.

When a call comes in on a manual-answer Loop start trunk,

it alerts at all telephones with that line appearance.

When a call comes in on an auto-answer Loop start trunk,

responds:

if the trunk is configured to answer with DISA, the caller

hears stuttered dial tone. The caller must then use a

DTMF telephone to enter a 6-digit Class of Service (COS) password.

if the trunk does not have or if the COS

password is valid, the caller hears system dial tone. The caller can then use a DTMF telephone to enter a target line number, the

code, or a remote feature code.

To place an outgoing call, a

Start line by dialing a Line Pool access code or by pressing a line button on the telephone or by pressing a memory button which has been programmed with a Line Pool access code.

DN, a Line Pool access

caller selects a Loop

Planning a network with

Bits and pieces 13

Configuration requirements

You need one Loop Start Trunk Cartridge for every four trunks beyond the eight that come with the Key Service Unit.

If you wish to configure your Loop Start lines as answer, the lines must have disconnect supervision. You will also need one

Loop Start lines that you configure as auto-answer.

Note that an auto-answer Loop Start trunk can give you the

same kind of direct inward dialing function as a DID trunk,

but you will require

mentioned in the previous paragraph) to receive the

incoming digits from the Central Office.

You may configure a Loop Start line as the prime line for a

telephone.

Trunk Cartridge for every two

Trunk Cartridges (as

Planning a network with

14 Benefits

Security

Class of Service

In the Capabilities section of Administration programming, there are several ways of protecting your from unauthorized access.

Class of Service (COS) refers to the capabilities that

provides to users who access the system from the public or

private network. The Class of Service includes:

filters that restrict dialing on the line. an access package, which defines the set of line pools

that may be accessed and whether or not the user has access to the paging feature.

system

The Class of Service that is applied to an incoming

access call is determined by:

the filters that you apply to the incoming trunk, or by the COS password that the caller used to gain access

to the

In cases where is not applied to incoming calls, the remote caller can change the Class of Service by dialing the

DN and entering a COS password.

To program COS passwords, see Capabilities in the

Administration chapter of the Modular

system.

Guide.

Planning a network with

Benefits 15

Dialing filters

You can use dialing filters to restrict the numbers that may be dialed on any external line within your system. You may specify up to 100 dialing filters for the system. A dialing filter consists of up to 48 restrictions and their associated exceptions.

Dialing within the system

To restrict dialing within the system, you can apply filters to outgoing external lines (as line filters), to telephones (as set filters), and to external lines on specific telephones (as line per set filters).

Line

Filter

Line per Set

Filter

no long

line 1

line 5

Planning a network with

16 Benefits

Dialed digits must pass both the line filter and the set filter.

The line per set filter overrides the line filter and set filter.

In the diagram on the previous page, a caller using line I

could not dial any long-distance number except to area

codes 212 and 718. A caller using line 3 could not dial any long-distance number. A caller using line 5 could dial

distance numbers to area codes 212, 718, and 415.

Note: Set filters have no effect on the numbers that are

dialed out on an E&M trunk.

Dialing outside the system

To restrict dialing outside the system (once a caller gains

remote access), you can apply dialing filters to incoming

external lines (as remote filters).

Line

Filter

no long

distance

Remote

caller

Remote

Filter

no long

distance

except

area codes

212.718

Access Code

Dialed digits in this case must pass both the remote filter and

the line filter. A remote caller can override these filters by

dialing the DN and entering a Class of Service password.

For programming instructions, see the Administration

chapter of the Modular DR4 Installer Guide.

Planning a network with

Benefits 17

Direct inward system access (DISA)

To control access from the public or private network, you configure auto-answer trunks to answer with DISA. Remote

callers hear stuttered dial tone and must then enter a Class

of Service password that determines what they are allowed

to do in the system.

Auto-answer Loop Start and E&M trunks are configured to answer with

by default.

Note:

DID trunks can not be configured to answer with DISA. If you want incoming DID calls to be answered with configure the system with a DN. Incoming DID calls that map onto the

has DISA.

For programming instructions, see the Configuration chapter

of the

You must have one Trunk Cartridge for every two auto-answer Loop Star-t trunks.

DN will then be routed to a line that

Modular DR4 Installer Guide.

Planning a network with

18 Benefits

Unified dialing plan

The system does not support a coordinated dialing plan for other systems in the network. However, if you are configuring more than one you can make access between the systems much easier with a unified dialing plan.

Directory Numbers

Make sure that the length of your is the same for all the

systems.

Line pools

If the systems are close to each other geographically, you can conserve resources by not duplicating access. For example, system A has a line pool to New York, System B has a line pool to Los Angeles, and system C has a line pool to Dallas. A A calls system C to get the line pool to Dallas.

system in your network,

user in system

Line Pool access codes

To simplify access between systems, all line pools that go to the same destination should have the same Line

Pool access code. For example, system A and system B both have a line pool to Nashville. You can configure both systems with the same Line Pool access code for the

Nashville line pool.

Planning a network with

Benefits 19

Unified dialing plan among four systems

A dialing plan similar to the one below will let you to create a company directory that includes the line pool access codes.

E&M

Netwk 5234

Rec’d #: 234

Internal #: 234 Internal #: 334

Netwk #: 8534 Netwk #: 7434

Netwk #: 6334

Rec’d #: 334

E&M

Internal #: 434

For instance, the person on System A at telephone 234 can select an intercom button and dial 7434.

This means that telephone 234 has dialed the line pool access code of the trunk to System C, and will receive the dial tone of System C. The digits 434 then map to the

Received number 434, and ring telephone 434 with an

appearance of the associated target line.

Planning a network with

20 Benefits

Call handling capabilities

The addition of target lines to the Nor-star Modular system

means that call coverage is extended. All call handling

features that apply to regular lines also apply to target lines.

Here are some brief descriptions of features that apply to

any line appearance on a

information on these features, see the Telephone features chapter of the

Modular Installer Guide.

telephone. For complete

Auxiliary Ringing

If the system has an auxiliary ringer (a bell that is not part of a telephone), the target line can be administered so

that the auxiliary ringer alerts in addition to the telephone

ringer.

Callback

When an external call on a target line is transferred to a busy telephone or not answered after a few rings, the call

automatically rings at the prime telephone for that line. The display shows that the telephone was busy or that the call was not answered.

Camp on

Even when a telephone is busy, a call on a target line can be routed to the telephone, where it waits in a queue until the telephone is not busy.

Delayed Ring Transfer

Target line calls that go unanswered after a specified

number of rings can be routed to the prime telephone if programmed to do so in Configuration.

Planning a network with

Benefits 21

Held Line Reminder

When a target line call is placed on hold, the telephone gives

two reminder tones at periodic intervals until the call is taken

off hold. This happens only if Held reminder is activated

during Configuration programming.

Overflow Call Routing

If a call comes in for a target line that is busy, routes the call to the prime telephone for that target line. If you don’t assign a prime telephone for the target line or if a call can

not be mapped onto a target line, the call will go to the prime telephone for the incoming trunk.

Prime Telephone Call Capture features

See the

Prime Telephone User Card

for details.

Privacy

When a user is on an external call and the Privacy feature is turned on, no other

same target line can join in on the call. If Privacy is turned off, another person with the same line can press the line

button to join in your conversation, forming a conference.

telephone with the

Service Modes

When there are fewer people available to answer calls during lunch hours, nights, or weekends, you can administer the system so that target line calls ring at certain telephones.

Planning a network with

22 Customer use

This section shows you sample configurations for the different types of network access. Each example has four parts:

A diagram shows the route that a call follows from

beginning to end.

A scenario explains the caller’s goal and the actions

needed to accomplish it. A list shows the hardware required to support

the configuration. A table shows the programming settings in

Configuration and Administration. Only those settings that are important to network access are described here.

In many cases, there are several ways to configure your

system for a particular type of network access. The

examples show the more typical configurations.

Planning a network with

the public network

Call one or more telephones

Ms. Nelson

Customer use 23

Target line

trunk

cartridges

Target line

083

Accountant

(telephone 226)

Ms. Nelson is a bank customer who has a question for an accountant. She dials the telephone number that maps onto target line 083. All of the accountants’ telephones ring.

Hardware

: any version of KSU, 1 Trunk Module, 1 DID

Trunk Cartridge.

Program heading

1. Data

Setting Rec’d

(for Line083)

5. System Data

Rec’d length:4 (can be up to 7 digits, but must match number of digits sent by Central Office)

Planning a network with

24 Customer use

Call and select tie lines to the private network

DID

Campaign

manager

Nors

E&M line pool

to Washington

A campaign manager in Georgia wants to use the tie lines at

headquarters to call Washington. The manager dials a

telephone number that maps onto the

DN, enters a

Class of Service (COS) password, then dials a Line Pool access code to select a tie line to Washington.

Hardware

: any version of KSU, 1 Trunk Module, 1 DID Trunk Cartridge, 2 Trunk Cartridges (for the three trunks in the line pool to Washington)

Planning a network with

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