Lucent Technologies MERLIN LEGEND Release 6.1, MERLIN LEGEND System Manager's Manual

MERLIN LEGEND

®

Communications System
Release 6.1

System Manager’s Guide

555-661-118
Comcode 108289505
Issue 1
August 1998

Copyright © 1998, Lucent TechnologiesDocument 555-661-118
All Rights ReservedComcode 108289505
Printed in USAIssue 1
August 1998

Notice

Every effort was made to ensur e th at the info rm ation in this book was complete and accurate at the time of printin g. How ever, information is

subject to change. See App end ix A, “Customer Support Information,” for important i nformation.

Your Responsibility for Your System’s Security

Toll fraud is the unauthorized use of your telecommunications system by an unauthorized party, for example, persons other than your company’s
employees, agents, subcontractors, or persons working on your company’s behalf. Note that there may be a risk of toll fraud associated with your
telecommunications system, and if toll fraud occurs, it can result in subs tantial additional charges for you r tele com m unications services.
You and your System Manager are responsible for the security of your system, such as programming and configuring your equipment to prevent
unauthorized use. The System Manager is also responsible for reading all installation, instruction, and system programming documents provided
with this product in order to fully understand the features th at ca n int roduce risk of toll fraud and the steps that can be taken to reduce that risk.
Lucent Technologies does not warrant that this product is immune from or will prevent unauthorized use of common-carrier telecommunication
services or facilities accessed through or connected to it. Lucent Technologies will not be responsible for any charges that result from such unau­thorized use. For important inform ation regarding your system and toll fraud, see Appendix A, “Custome r Support Information.”

Federal Communications Commission Statement

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits
are designed to provide rea sonable protection agai nst ha rmful interference when the equipment is opera te d in a commercial envir onm ent. This
equipment generates, use s , and can radiate radio frequency energy and, if not instal led and used in accordance with the instruction manual, may
cause harmful interference t o radio communications. Operation of this equipment in a resid ent ial area is likely to cause harmful i n terference, in
which case the user will be required to correct the interference at his own expense. For further FCC information, see Ap pe ndix A, “Customer
Support Information.”

Canadian Department of Communications (DOC) Interference Information

This digital apparatus does no t ex ce ed the Class A limits for radio noise emissions set out i n the radio interference regulati ons of t he Canadian
Department of Communications.
Le Présent Appareil Numériqu e n’ émet pas de bruits radioélectriques dépassant les limites applicables aux appareil s num é riq ues de la classe A
préscrites dans le règlement sur le brouillage radioélectrique édicté par le ministère des C om munications du Canada.

Trademarks

5ESS, AUDIX, DEFINITY, HackerTracker, CONVERSANT, Lucent Technologies Attendant, Fax Attendant System , MERLIN, ME RL IN
LEGEND, MERLIN MAIL, MERL IN PF C, MLX-10, MLX-10D, MLX-10DP, MLX-16DP, MLX-20L, MLX-28D, Passa ge Way, PARTNER,
and Voice Power are registere d tr ademarks and 4ESS, Intuity, Luc en t Te c hnologies, MLX-5, MLX-5D, and E xpressRoute 1000 are trademarks
of Lucent Technologies in the U S a nd other countries. NetPROT ECT is a service mark of Lucent Te chnologies in the US and other co untries.

Supra, StarSet, and Mirage are registered tradema rks of P lantronics, Inc.
MEGACOM, ACCUNET, AT&T, Magic on Hold, and MultiQuest are registered trademarks of AT&T.
Pipeline is a tradem ark of Ascend Communi cations, Inc.
Intel and Pentium are registered trademarks of Intel Corporation.
PagePac is a registered trademark and PagePal a trademark of DRACON, a division of Harris Corporation.
UNIX is a registered trademark of UNIX System Laboratories, Inc
NORTEL is a regis tered trademark and DMS a trad emark of Northern Te lecom.
MCI, Prism, and Vnet are registered trademarks of MCI Communications Corp.
Apple and Macintosh are registered trademarks of Apple Computer, Inc.
Microsoft and Windows are registered trademarks of Microsoft Corporation.

Ordering Information

Call: BCS Publications Center

Write: BCS Publications Center

Order: Document No. 555-661-118

For more information abou t L uce nt Technologies docu m ent s, refe r to t he sect io n entitled, ‘‘

Support Telephone Number

In the continental US, Lucent Technologies provi des a tol l-f ree customer helpline 24 hours a da y. Call the Lucent Technologi es Helpline at
1 800 628-2888 or your Luce nt Te chnologies authorized dealer if you need assistance when install in g, programming, or using your system.
Consultation charges may apply. Outside the conti nental US, contact your loc al Lucent Technologies a uth orized representative .

Lucent Technolo gies Fraud Interven t ion

If you suspect you are being victimized by toll fraud and you need technical support or assistance, call BCS National Service Assistance Center at

1 800 628-2888.
Warranty

Lucent Technologie s provides a limited warranty on this product. Refer to “Lim it ed Wa rranty and Limitation of Li ability” in Appendix A,
“Customer Support Information. ”

Voice 1 800 457-1235 International Voice 317- 322-6791
Fax [phone] International Fax [phone]

2855 North Franklin Road
Indianapolis, IN 46219- 1385

Comcode: 108289505
Issue 1, August 1998

Related Document s ’’ on page xlvi.

®

MERLIN LEGEND

Communications System

Release 6.1 0

System Manager’s Guide 0

System Information Sheet 0

If you have a problem with your system, you may be able to resolve it quickly and easily by following the
appropriate troubleshooting procedure in this guide. If the problem persists or is not listed in this guide,
call the Lucent Technologies Helpline at 1 800 628-2888 for further assistance; consultation charges may
apply.

When you call the Helpline, the Lucent Technologies representatives can better help you if you have
available the following system information and troubleshooting information. Also, obtain system planning
Form 2a, System Numbering: Extension Jacks and Form 2c, System Numbering: Line/Trunk Jacks.

System Information 0

Company Name
(as on the equipment order)
Account Number
(if known)

Customer Identification Number
Main Listed Telephone Number
(for this location)
Lucent Technologies Contact
Name and Phone Number

Troubleshooting Information 0

Type of equipment experiencing the problem (for example, MERLIN LEGEND Communications System,
MERLIN LEGEND MAIL, or a particular system component):

A description of the problem:

Has this problem occurred before?

Have you attempted to troubleshoot the problem?

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

555-661-118

Contents

Contents

IMPORTANT SAFETY INSTRUCTIONS xvii

New Features and Enhancements xix

■ Release 6.1 Enhancements

(August 1998) xix

Prior Releases: Features and Enhancements xxiii

Issue 1

August 1998

Page v

■ Release 6.0 Enhancements

(February 1998) xxiii

■ Release 5.0 Enhancements (June 1997) xxvii

■ Release 4.2 Enhancements (June 1997) xxxii

■ Release 4.1 Enhancements (June 1997) xxxv

■ Release 4.0 Enhancements

(March 1996) xxxvi

■ Release 3.1 Enhancements

(March 1996) xxxix

About This Book xliii

■ Intended Audience xliii

■ How to Use This Book xliii

■ Terms and Conventions Used xliv

■ Security xlv

■ Related Documents xlvi

■ How to Comment on This Book xlvii

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

555-661-118

August 1998

Contents

1 Read This First 1–1

■ Overview 1–2

■ Your Role as System Manager 1–4

■ The System Planning For ms 1–5

■ Upgrading the System 1–6

■ Environmental Requ irements 1–7

2 About the System 2–1

■ Background 2–2

■ System Overview 2–9

■ Incoming Trunks 2–12

■ Modes of Operation 2–16

■ Components 2–18

■ Features 2–22

■ Applications 2–22

■ Programming the System 2–26

■ System Capacities 2–26

■ Auxiliary Components 2–27

■ Data Communications Capabilities 2–30

Issue 1

Page vi

3 System Components 3–1

■ Control Unit 3–1

■ Telephones 3–14

■ Operator Consoles 3–30

■ Adapters 3–34

■ Adjuncts 3–36

■ Power-Related Hardware 3–46

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

555-661-118

August 1998

Contents

4 Features and Applications 4–1

■ Features 4–2

■ Applications 4–60

5 Putting the System to Work 5–1

■ Scenario 1: A Small Office 5–2

■ Scenario 2: A Professional Office 5–7

■ Optimizing Your System 5–22

6 Managing the System 6–1

Issue 1

Page vii

■ Using the Task Descriptions 6–2

■ Using the Programming Procedures 6–3

■ Introduction to System Programming 6–5

■ Programming from the Console 6–13

■ Programming from a PC with SPM 6–18

■ Centralized Telephone Programming 6–23

■ Using Reports 6–33

■ Setting System Date and/or Time 6–37

■ Backing Up the System 6–38

■ Adding an Extension 6–39

■ Moving an Extension 6–41

■ Removing an Extension 6–43

■ Assigning a Ho tLine Extension 6–44

■ Changing Calling Restrictions 6–46

■ Changing Trunk-to-Trunk Transfer Status 6–47

■ Changing Coverage Delay Options 6–49

■ Adding/Removing a Line 6–55

■ Adding a DLC Operator Position 6–56

■ Adding a QCC Operator Position 6–59

■ Adding Operator Features 6–62

■ Connecting Auxilia ry Equ ipm ent 6–64

■ Changing Calling Group Assignments 6–67

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

555-661-118

Contents

■ Revising Allow ed List s 6–68

■ Assigning Allowed Lists to Extensions 6–70

■ Revising Disallow ed Lis ts 6–71

■ Assigning Disallowed Liststo Ext ensions 6–73

■ Changing Group Coverage Assignments 6–75

■ Revising Night Service with Group Assignment 6–77

■ Revising Night Service with Coverage Control 6–79

■ Changing Extension Directory Labels 6–81

■ Changing Trunk Labels 6–82

■ Changing Posted Message Labels 6–83

■ Changing Calling Group Labels 6–85

■ Changing System Directory Labels 6–86

■ Adding a CTI Link 6–87

■ Removing a CTI Link 6–91

Issue 1

August 1998

Page viii

7 Learning More 7–1

■ Guides 7–2

■ System Guides Information Finder 7–13

8 Troubleshooting the System 8–1

■ All Phones Are Dead (No Dial Tone or Lights) 8–2

■ Some Phones Are Dead (No Dial Tone or Lights) 8–3

■ Difficulty Making Outside Calls 8–5

■ Phone Does Not Ring 8–8

■ DLC Not Ringing for Incoming Calls 8–11

■ QCC Not Ringing for Incoming Calls 8–12

■ Single-Line Phones Ring Back

after Completed Call 8–13

■ Cannot Transfer Call after Answer on an Outside Line 8–14

■ Night Service Not Working 8–15

■ Calls Not Going to Voice Mail 8–16

■ Callers Receiving Incorrect Response from Voice Mail 8–19

■ Calls Not Going to Coverage 8–20

■ Trouble Hearing Called Part y 8–21

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

555-661-118

August 1998

Contents

■ Programmed Button Fa il s 8–22

■ Reminder Messages Received with the Wrong Time 8–22

■ Recall/Switchhook Does Not Work 8–23

■ Calling Group Members Not Receiving Calls 8–24

■ Calls Not Receiving Screen Pop 8–25

■ Calling Group Overflow Calls Not Receiving Screen Pop 8–27

■ Secondary Announcements Not Playing as Programmed 8–27

■ Other or Unresolved Problems 8–30

A Customer Support Information A–1

■ Support Telephone Number A–1

■ Federal Communications Co mmission

(FCC) Electromagnetic
Interference Information A–1

■ Canadian Department of Communications (DOC)

Interference Information A–2

■ FCC Notification and Repair Information A–2

■ Installation and Operational Procedures A–3

■ DOC Notification and Repair Information A–5

■ Renseignements sur la notification du

ministère des Communications du
Canada et la réparation A–6

■ Security of Your System: Preventing Toll Fraud A–8

■ Toll Fraud Prevention A–9

■ Other Security Hints A–15

■ Limited Warranty and Limitation of Liability A–18

■ Remote Administration and Maintenance A–20

Issue 1

Page ix

B About Telecommunications B–1

■ Telephone Extension Equipment B–2

■ Transmission Facilities B–3

■ Switching Equipment B–5

■ Signaling B–8

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

Contents

555-661-118

August 1998

C System Capacities C–1

D System Planning Forms D–1

E Removing/Reinstalling the Control Unit Cover E–1

■ Removing the Control Unit Housing E–2

■ Installing the Control Unit Hou sing E–2

Issue 1

Page x

GL Glossary GL-1

IN Index IN–1

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

Figures

555-661-118

Figures

2 About the System 2–1

2–1 The Local Loop 2–3
2–2 The Telephone Network 2–4
2–3 The Evolution of Switches 2–7
2–4 The Switching Office Hierarchy 2–8
2–5 System Overview 2–11
2–6 Incoming Trunks 2–13
2–7 System Components 2–20
2–8 408 GS/LS-MLX Module 2–21
2–9 Applications 2–25
2–10 Auxiliary System Components 2–29

Issue 1

August 1998

Page xi

3 System Components 3–1

3–1 Processor Module 3–3
3–2 Power Supply Module 3–4
3–3 Line/Trunk and Extension Modules 3–11
3–4 MLX-28D Telephone 3–16
3–5 MLX-20L Telephone 3–17
3–6 MLX-16DP Telephon e 3–18
3–7 MLX-10D Telephone 3–19
3–8 MLX-10 Telephone 3–20
3–9 MLX-5D Telephone 3–21
3–10 Direct Station Selector 3–23

5 Putting the System to Work 5–1

5–1 Medical Office Floor Plan 5–4
5–2 Law Firm Floor Plan 5–8
5–3 Law Firm Equipment 5–16
5–4 Law Firm Call Coverage 5–20
5–5 CTI Link Overview 5–24

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

Figures

555-661-118

6 Managing the System 6–1

6–1 Information Screen 6–6
6–2 Menu Selection Screen 6–7
6–3 Data Entry Screen 6–7
6–4 System Programming Menu Screens 6–8
6–5 Screen Keys 6–9
6–6 Station Busy Screen 6–11
6–7 MLX-20L Telephone with Direct Station Selector

(DSS) 6–14
6–8 Display Buttons and Main Menu 6–14
6–9 Console Overlay 6–16

Issue 1

August 1998

Page xii

E Removing/Reinstalling the Control Unit Cover E–1

E–1 Removing the Control Unit Housing E–2
E–2 Installing the Top Cover E–3
E–3 Installing the Front Cover E–4

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

Tables

555-661-118

Tables

2 About the System 2–1

2–1 Modes of Operation 2–17

3 System Components 3–1

3–1 Line/Trunk and Extension Modules 3–12
3–2 Analog Multiline Teleph one s 3–24
3–3 Single-Line Telephones 3–25
3–4 Maximum Number of System Operator Positions 3–30
3–5 Adjunct Summary 3–44

Issue 1

August 1998

Page xiii

4 Features and Applications 4–1

4–1 Feature Finder: Basic Calling and Answering

(Non-Networked Syst ems ) 4–5
4–2 Feature Finder: Covering Calls and Having Calls

Covered (Non-Networked Systems) 4–13
4–3 Feature Finder: Calling Privileges and Restrictions

(Non-Networked Syst ems ) 4–16
4–4 Feature Finder: Custom iz ing Phone s

(Non-Networked Syst ems ) 4–19
4–5 Feature Finder: Messaging

(Non-Networked Syst ems ) 4–21
4–6 Feature Finder: Timeke epi ng 4–23
4–7 Feature Finder: System Manager’s Functions and

Features (Non-Networked Systems) 4–24
4–8 Feature Finder: Special Operator and Supervisor

Features (Non-Networked Systems) 4–31
4–9 Selective Coverage Features 4–39
4–10 Features for Covering Calls

(Non-Networked Syst ems ) 4–41
4–11 Facility Restriction Levels 4–49
4–12 Application Descriptions and Modes of Operation 4–62
4–13 Voice Messaging Syste m s 4–66

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

Tables

555-661-118

5 Putting the System to Work 5–1

5–1 Medical Office Needs 5–3
5–2 Executive Staff Needs 5–9
5–3 Secretarial Staff Needs 5–10
5–4 Administrative/Support Staff Needs 5–11
5–5 Other Needs 5–12
5–6 Law Firm Call Coverage and Call-Handling 5–17
5–7 Law Firm Calling Restrictions 5–21

6 Managing the System 6–1

6–1 Typefaces Used in Summary Programming

Procedures 6–5
6–2 System Programming Menu Options 6–9
6–3 Screen Keys and PC Keys 6–10
6–4 Idle States 6–12
6–5 Exiting System Programming 6–18
6–6 Features That Can Be Copied: All Telephones 6–29
6–7 Features That Can Be Copied: Direct-Line

Consoles Only 6–30
6–8 Ring Delays Affecting Coverage 6–50
6–9 Group Coverage Call Delivery Rules

(Release 4.1 and Later Systems) 6–52
6–10 Maximum Number of Operator Positions 6–56
6–11 Maximum Number of Operator Positions 6–60

Issue 1

August 1998

Page xiv

7 Learning More 7–1

7–1 System Reference Guides Overview 7–4
7–2 Information Finder: Features 7–14
7–3 Information Finder: Programming 7–17

8 Troubleshooting the System 8–1

8–1 Checking the Effectiveness of Delay Announcements 8–28

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

Tables

555-661-118

C System Capacities C–1

C–1 Hardware and Software Capacities C–2

D System Planning Forms D–1

D–1 System Planning Forms D–1

Issue 1

August 1998

Page xv

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

Tables

555-661-118

Issue 1

August 1998

Page xvi

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

IMPORTANT SAFETY INSTRUCTIONS

555-661-118

IMPORTANT SAFETY INSTRUCTIONS

The exclamation point in an equilateral triangle is
intended to alert the user to the presence of
important operating and maintenance (servicing)
instructions in the literature accompanying the
product.

When installing telephone equipment, always follow these basic safety
precautions to reduce the risk of fire, electrical shock, and injury to persons:

■ Read and understand all instructi on s.

■ Follow all warnings and instructions marked on or packed with the product.

■ Never install telephone wiring during a lightning storm.

Issue 1

August 1998

Page xvii

■ Never install a telephone jack in a wet location unless the jack is

specifically designed for wet locations.

■ Never touch uninsulated telephone wires or terminals unless the telephone

wiring has been disconnected at the network interface.

■ Use caution when installing or modifying telephone lines.

■ Use only Lucent Technologies-manufactured MERLIN LEGEND

Communications System circuit modules, carrier assemblies, and power
units in the MERLIN LEGEND Communications System control unit.

■ Use only Lucent Technologies-recommended/approved MERLIN LEGEND

Communications System accessories.

■ If equipment connected to the analog extension modules (008, 408, 408

GS/LS) or to the MLX telephone modules (008 MLX, 408 GS/LS-MLX) is to
be used for in-range out-of-building (IROB) applications, IROB protectors
are required.

■ Do not install this product near water, for example, in a wet basement

location.

■ Do not over lo ad wal l out let s, as this can re sult in the risk of fire o r el ect rical

shock.

■ The MERLIN LEGEND Communications System is equipped with a 3-wire

grounding-type plug with a third (grounding) pin. This plug will fit only into a
grounding-type power outlet. This is a safety feature. If you are unable to
insert the plug into the outlet, contact an electrician to replace the obsolete
outlet. Do not defeat the safety purpose of the grounding plug.

■ The MERLIN LEGEND Communications System requires a supplementary

ground.

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

IMPORTANT SAFETY INSTRUCTIONS

■ Do not attach the power supply cord to building surfaces. Do not allow

555-661-118

anything to rest on the power cord. Do not locate this product where the
cord will be abused by persons walking on it.

■ Slots and openings in the module housings are provided for ventilation. To

protect this equipment from overheating, do not block these openings.

■ Never push objects of any kind into this product through module openings

or expansion slots, as they may touch dangerous voltage points or short
out parts, which could result in a risk of fire or elec trical shock. Never spill
liquid of any kind on this product.

■ Unplug the product from the wall outlet before cleaning. Use a damp cloth

for cleaning. Do not use cleaners or aerosol cleaners.

■ Auxiliary equipment includes answering machines, alerts, modems, and

fax machines. To connect one of these devices, you must first have a Multi­Function Module (MFM).

■ Do not operate telephones if chemical gas leakage is suspected in the

area. Use telephones located in some other safe area to report the trouble.

Issue 1

August 1998

Page xviii

!

WARNING:

■

For your personal safety, DO NOT install an MFM yourself.

■

ONLY an authorized technician or dealer representative shall install, set
options, or repair an MFM.

■

To eliminate the risk of personal injury due to electrical shock, DO NOT
attempt to install or remove an MFM from your MLX telephone. Opening
or removing the module cover of your telephone may expose you to
dangerous voltages.

SAVE THESE INSTRUCTIONS

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

New Features and Enhancements

555-661-118

New Features and Enhancements

Release 6.1 Enhancements
(August 1998) 0

Issue 1

August 1998

Page xixRelease 6.1 Enhancements (August 1998)

Release 6.1 includes all Release 6.0 functionality, plus the enhancements listed
below.

Private Networking 0

Release 6.1 enhances the functioning of the networked MERLIN LEGEND
Communications System in a number of ways:

■ Centralized Voice Messaging

■ Group Calling Enhancements

■ Transfer Redirect

■ Direct Station Selector

■ Call Forwarding

■ SMDR

■ Prepending of Zeros

■ Decrease in Call Set-Up Time

■ PRI Tandem Trunk Demand Test

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

New Features and Enhancements

555-661-118

Centralized Voice Messaging 0

One or more MERLIN LEGEND systems (Release 6.1 or later) can share the
voice messaging system (VMS) of another MERLIN LEGEND system. In this
configuration, the system containing the VMS is known as the hub. This sharing of

the VMS is called “Centralized Voice Messaging.” Centralized Voice Messaging
includes the functions of voice mail and Automated Attendant. See the

Reference

Centralized Voice Messaging offers the following benefits:

■ Networked systems do not need a local VMS. Having systems use a

■ Users at networked systems can dial the same digits anywhere in the

■ Productivity is enhanced because messages can be forwarded and

for detailed information about Centralized Voice Messaging.

centralized VMS instead of separate VMS’s saves money.

network to access VMS. For example, a salesperson headquartered in
Cincinnati can dial the same four digits at the company’s Los Angeles
office to retrieve voice messages.

broadcast across the network.

Issue 1

August 1998

Page xxRelease 6.1 Enhancements (August 1998)

Network

■ Calling groups on networked systems can send overflow coverage to a

shared VMS, where incoming callers can leave messages for individuals or
groups.

■ One VMS can light the Message Waiting lights on any number of systems.

This greater efficiency saves time.

Group Calling Enhancements 0

A calling group can have a
Dial Plan as existing on another MERLIN LEGEND Communications System
connected by a tandem trunk. If a calling group contains a non-local member, the
non-local member must be the

Reference

for details.

A calling group containing a single non-local member can be used for many of the
same purposes as a calling group containing local extensions, including:

■ Night Service. Night Service coverage can be provided across a private

network to a centralized Automated Attendant, a non-local calling group, a
QCC queue, a DLC, or any individual extension on the remote system,
such as a night bell.

■ Group Coverage. Group Coverage can be provided across a private

network to a VMS, a non-local calling group, a QCC queue, a DLC, or any
individual extension on the remote system.

single

non-local member that is defined by the Uniform

only

member in the calling group. See the

Network

■ Calling group overflow coverage. Calling group overflow coverage can

be provided by a centralized VMS, a non-local calling group, a QCC queue,
a DLC, or any individual extension on the remote system.

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

New Features and Enhancements

555-661-118

Consequently, there can be any number of coverage points across the private
network, and personnel across a private network can be shared for coverage.

Transfer Redirect 0

Calls transferred by an Automated Attendant to a non-local extension can now be

redirected to a local extension programmed to receive the redirected calls. “Local”
means that the extension is on the same system as the Automated Attendant.
When a call is transferred by the Automated Attendant to a non-local extension
and is not answered within the transfer redirect timeout period, the call stops
ringing and is forwarded to the local redirect extension. This redirect extension
can be a QCC queue, a calling group, or an individual extension.

Direct Station Selector 0

Now users can press a Direct Station Selector (DSS) button for an extension on
another system in the private network, provided that the DSS has access to the
Uniform Dial Plan (UDP).

Issue 1

August 1998

Page xxiRelease 6.1 Enhancements (August 1998)

Call Forwarding 0

Calls now can be forwarded to extensions across the private network.

SMDR 0

Administrators now can program local system SMDRs to log incoming and
outgoing calls that travel across private network trunks. Users can select all calls
to be logged or no calls to be logged.

Prepending of Zeros 0

Some businesses set up their communications systems to send only a four-digit
number for Caller ID information. Prior to Release 6.0, the MERLIN LEGEND
system identified all four-digit calls as inside calls. In Release 6.0, calls less than
five digits long were identified as private network calls. Now, in Release 6.1 and
later systems, zeros are prepended to four-digit calling party number calls that
come from the PSTN. This allows an application such as PassageWay Telephony
Services to determine that the call is an outside call by using the length of the
Caller ID information.

Decrease in Call Set-Up Time 0

The set-up time for a call across a private network has been reduced by
programming the number of UDP digits expected. This allows a centralized
Automated Attendant to route calls across the private network.

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

New Features and Enhancements

555-661-118

PRI Tandem Trunk Demand Test 0

A new maintenance test, the PRI Demand T est, has been created to allow Lucent
Technologies technicians or authorized dealers to automatically determine if the
ends of the PRI tandem trunks have been programmed corre ctly.

For PRI tandem trunks to operate correctly between two systems, one system
must have the PRI tandem trunk set to Network, and the other system must have
the PRI tandem trunk set to PBX. If both ends of the connection are programmed
the same, problems occur in the communications between the two systems.

Service Observing 0

Service Observing allows one extension to listen in on (observe) a call at another
extension. A typical application of this feature is that of a Customer Service
supervisor observing how a Customer Service representative handles calls.

The Service Observing group can consist of from one extension to all extensions
on the system, including other Service Observers. Up to 16 Service Observing
groups can be programmed.

Issue 1

August 1998

Page xxiiRelease 6.1 Enhancements (August 1998)

NOTE:

QCCs and CTI link extensions cannot be Service Observers or members of
a Service Observing group. Data and video calls cannot be observed.

The observer activates Service Observing by pressing a Service Observing button
and then dialing an extension number or pressing a DSS or Auto Intercom button.
The Service Observer must use an MLX telephone to observe an extension; the
telephone at the observed extension can be of any type.

A warning tone that alerts the observer, the observed extension, and the caller
that Service Observing is occurring can be set to On or Off through System
Programming. The factory setting is On.

Windows SPM 0

The System Programming and Maintenance (SPM) software is now available in a
Windows format compatible with Windows 95
Windows NT 4.0 Server. The Windows version is backwards-compatible with
previous DOS versions and is available on CD-ROM.

Windows NT Driver 0

The system software now includes a Windows NT driver for TSAPI applications.

, Windows NT 4.0 Workstation, and

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

Prior Releases: Features and Enhancements

555-661-118

Prior Releases: Features and
Enhancements

Release 6.0 Enhancements
(February 1998) 0

Issue 1

August 1998

Page xxiiiRelease 6.0 Enhancements (February 1998)

Release 6.0 includes all Release 5.0 functionality, plus the enhancements listed
below.

Private Networks 0

In Hybrid/PBX mode systems only, MERLIN LEGEND Communications Systems
can be networked with one another or with DEFINITY
Communications Server (ECS) and ProLogix
private networks. In previous releases, this functionality is available using tie lines,
but users handle calls between networked switches as outside calls. In this
release, dialing the pool access code is not necessary for a call going from one
networked switch to another. Also, delay-start tie trunks or T1 trunks administered
as PRI can act as

Available for Hybrid/PBX mode systems, the private network features of the
MERLIN LEGEND Communications System Release 6.0 provide the following
advantages for geographically dispersed organizational sites:

■ Intersystem Calling. In a private network, users on one local system can

call extensions on other systems in the network. Release 6.0 can support
2-, 3-, 4-, or 5-digit dial plans. They dial these extensions as inside calls. To
implement this function, the system manager programs the extension
ranges of remote networked switches to create a non-local dial plan. This
programming does not actually affect numbering on the remote system. To
correctly set up systems for transparent calling among non-local dial plan
extensions, the system manager assigns networking tie and/or PRI tandem
trunks to pools. Then he or she programs as many as 20 patterns,

tandem trunks

to connect networked systems.

™

®

Enterprise

Communications Systems in

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

Prior Releases: Features and Enhancements

555-661-118

associates with routes, Facility Restriction Levels (FRLs), digit absorption,
and digit prepending. This allows ARS-like routing of non-local dial plan
calls. In addition, system managers can control whether calling name,
calling number, or both are shown at MLX display telephone for incoming
calls across PRI tandem trunks.

■ T oll Savings. Pri vat e ne twor ked t run ks ma y al low yo u t o re aliz e si gnifi cant

cost savings on long-distance and toll calls by performing tandem switching
in the following two ways:

— Callers on a local system, or individuals dialing in to remote access

at a local system, can reach the public switched telephone network
(PSTN) via outside trunks connected to other systems in a private
network, avoiding toll charges or decreasing the cost of toll calls. No
special dialing is required. For example, an organization might have
a main office in Boston and a subsidiary office in New Jersey,
connected by networked private tandem trunks between two
systems. A user in the New Jersey office who wishes to make an
outside call to the 617 area code (Boston) can do so through a
line/trunk connected to the system in Boston. For example, he or
she might dial ,

. The local ARS tables would route this

call over the private network trunks and use the ARS tables of the
remote system in Boston to route this call. The system managers at
each end of a private network set up ARS and Remote Access
features to implement this functionality.

Issue 1

August 1998

Page xxivRelease 6.0 Enhancements (February 1998)

— In addition, local organizations or incoming DID calls use private

networked trunks to make intersystem calls between networked
systems, which may be geographically distant from one another,
also resulting in toll savings.

■ Service Cost Savings. In addition to toll call saving, there are two ways

that organizations can save on service costs incurred from
telecommunications providers that provide public switched telephone
network access:

— You order a point to point T1 facility from a service provider, then

use system programming to set it up for PRI signalling. As
necessary, a service provider can provide amplification on the T1
facility, but does not supply switching services.

— You can tailor your use of PRI B-channels with drop-and-insert

equipment that allows fractional use of B-channels for dedicated
data/video communications between systems at speeds greater
than 64kbps per channel or 128 kbps for 2B data, while keeping the
remaining B-channels for PRI voice traffic. The PRI D-channel must
remain active.

— You can tailor use of T1 channels to support both T1-emulated

tandem tie service and T1 Switched 56 service for data
communications at 56 kbps per channel, allowing 2B data transfers
at 112 kbps. You can also use drop-and-insert equipment to provide
fractional T1 use.

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

Prior Releases: Features and Enhancements

■ Voice Mail and Auto Attendant. Networked systems should have their

555-661-118

own local voice mail and/or auto attendant applications as well as their own
external alerts and Music On Hold sources. However, a single auto
attendant can transfer calls throughout the network. It can answer only
those calls that arrive on the PSTN facilities of the system where it is
connected.

Although many features are available using tie trunks for network connectivity,
PRI tandem trunks provide greatly enhanced features and faster call setup. For
this reason, PRI is recommended over tie functionality in private networks.

Group Calling Enhancements 0

Release 6.0 and later systems include Group Calling features that enhance group
calling operations.

Queue Control 0

The system manager can control the maximum number of calls allowed in the
primary calling group queue for calls that arrive on certain facilities often assigned
to calling groups. When the number of the calls in queue reaches the
programmed maximum, subsequent callers receive a busy signal.

Issue 1

August 1998

Page xxvRelease 6.0 Enhancements (February 1998)

Queue control applies to calls received on the following types of facilities:

■ DID (Direct Inward Dialing)

■ PRI facilities programmed for dial-plan routing

■ All calls transferred from a VMI (voice messaging interface) port

■ Dial-in Tie

Queue control also applies to internal calls to a DGC group and calls to a calling
group through the QCC.

Internal calls that dial  or  and are directed to a calling group
administered as Position-Busy Backup are eligible for queue control. Calls that
come in on a trunk assigned to the Queued Call Console (QCC) are not eligible
for queue control if the call is directed to a calling group designated as Position­Busy Backup.

Remote-access calls to a calling group, coverage calls directed to a calling group,
calls directed to calling group through QCC Position-Busy backup, and all other
outside calls are not eligible for queue control.

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

Prior Releases: Features and Enhancements

555-661-118

Prompt-Based Overflow 0

System managers can activate the Prompt-Based Overflow option. This option
allows callers waiting in queue and listening to a delay announcement to press the
# key in order to reach the overflow receiver for the group, which may be the QCC
queue or another calling group (including a calling group assigned for a voice mail
system).

All three overflow distribution options—based on the number of calls, the time a
caller has waited, and according to the caller’s prompt—may be used at one time.
In this case, time-based and number-of-calls based options take precedence over
overflow distribution based on the caller’s prompt.

When prompt-based overflow distribution is used, an extra TTR must be provided
for each delay announcement device assigned to the associated calling group.
The delay announcement informs the caller of the # key option to exit the queue
and leave rather than waiting for an agent. If no TTR is available when a calling
group call arrives, the call is not sent to a delay announcement extension.

Centrex Transfer via Remote Call Forwarding 0

Issue 1

August 1998

Page xxviRelease 6.0 Enhancements (February 1998)

Centrex Transfer via Remote Call Forwarding can be used in all system modes of
operation to send outside calls to a remote telephone number or another Centrex
station. In this context, the term

outside calls

refers to calls from outside the
communications system, which may originate at extensions in the Centrex system
but not connected to the local MERLIN LEGEND Communications System.

An outside call that uses this feature is defined as a call that arrives on an analog
Centrex loop-start line at the MERLIN LEGEND Communications System. It may
arrive directly or be transferred without consultation or without transfer supervision
(in the case of an automated attendant). The forwarding call to the outside
number is made on the same line/trunk on which the call arrived, conserving
system facilities. The following considerations and rules apply:

■ Only outside Centrex calls are forwarded using this feature.

■ The system must be equipped with analog loop-start Centrex lines and a

ll

loop-start lines in the system must be Centrex facilities. Loop-start lines do
not have to provide reliable disconnect for use by the Centrex Transfer via
Remote Call Forwarding feature.

■ To transfer calls outside the Centrex system, the organization must

subscribe to a Centrex trunk-to-trunk transfer feature.

Activating Centrex Transfer via Remote Call Forwarding is just like activating
regular Remote Call Forwarding and requires that Remote Call Forwarding be
enabled for the extension. However, the user dials
and a Pause character may be required after the

 instead of a dial-out code,

. The Centrex service provider

determines whether the Pause is needed.

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

Prior Releases: Features and Enhancements

555-661-118

Pause cannot be originated from a single-line telephone or a remote access user.
A multiline telephone user in the local system must enter an authorization code to
activate the feature.

A remote access user may activate the feature without using an authorization
code. Barrier code requirements do apply, however.

Authorization Codes and
Remote Call Forwarding 0

In Release 6.0 and later Key or Hybrid/PBX mode systems, forwarding features,
including Centrex Transfer via Remote Call Forwarding, but excluding Follow Me,
can be activated or deactivated at a multiline telephone by entering the
authorization code for the extension from which calls are to be forwarded. The
user enters the authorization code, then activates or deactivates the forwarding
feature in the normal fashion. This is especially useful for a single-line telephone
user who must include a Pause character in a Centrex Transfer via Remote Call
Forwarding dialing sequence, because the character cannot be dialed at a single­line telephone. It is also useful when activating Call Forwarding or Remote Call
Forwarding at phantom stations, or via remote access (e.g. from another switch in
the network). No other features can be used by entering an authorization code in
this fashion.

Issue 1

August 1998

Page xxviiRelease 5.0 Enhancements (June 1997)

Release 5.0 Enhancements (June 1997) 0

Release 5.0 includes all Release 4.2 functionality, plus the enhancements listed
below.

Computer Telephony Integration (CTI) 0

Beginning with Release 5.0, a PassageWay® Telephony Services CTI link from
the MERLIN LEGEND Communications System to a LAN server running Novell
NetWare
control and monitor MLX and analog multiline telephone (BIS only) operations.
The physical connection for the CTI link is an MLX port on a 008 MLX or 408 MLX
module on the MERLIN LEGEND Communications System control unit and ISDN

link interface card plugged into the customer’s server. The feature is available for
Hybrid/PBX mode systems only.

®

software allows Lucent T echnologies-certified telephony applications to

NOTE:

The NetWare server software version must be 3.12, 4.1 or 4.11.

The 008 MLX and 408 MLX modules must have firmware vintage other
than 29. If the module has firmware 29, programming a CTI link on the
module is prevented. An earlier or later vi ntag e firmwar e is suppo r ted.

®

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

Prior Releases: Features and Enhancements

555-661-118

Basic Call Control 0

A CTI link application on a user’s computer can assume basic call control of the
user’s analog multiline or MLX telephone’s SA buttons. Basic call control includes:

■ Answering calls arriving on an SA button

■ Making calls from an SA button

■ Hanging up calls

■ Hold and retrieving a call on hold at the user’s extension

NOTE:

Transfer and 3-way conference, when handled through a CTI link
application, provide the original caller’s calling number information or
other information to the transfer receiver or new conference
participant, if the user has screen-pop capability.

Screen Pop 0

Screen pop occurs when the calling number, called number, or other user-defined
identifier (such as account code that a voice-response unit prompts the caller to
dial) is used to display a screen associated with the far-end party. For example,
Caller ID services can be used to support screen pop on a system that includes a
CTI link; using the calling party number as a database key code, information
about a caller automatically appears on the user’s computer screen when the call
arrives at the extension. Depending on the application, screen pop may be
available for calls that arrive on line buttons other than SA buttons and/or calls
that are answered manually at the telephone rather than by the application.

Issue 1

August 1998

Page xxviiiRelease 5.0 Enhancements (June 1997)

Screen pop can occur on incoming calls from the following sources:

■ Calling group distribution

■ ISDN PRI Routing by Dial Plan

■ An extension on the MERLIN LEGEND Communications System

■ Remote access

NOTE:

In the case of remote access calls, the only information that the
application can collect about the caller is the remote telephone
number.

■ A transfer of a call that was answer ed by a voice response unit

■ A transfer, redirection, or conference of a call that was answered at a DLC

or at a QCC

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

Prior Releases: Features and Enhancements

555-661-118

NOTES:

1. DLCs (Direct-Line Consoles) may use CTI applications. If they do, they
perform the same way as other extensions. A DLC assigned to use a
CTI link application is a

monitored

regular operator console and not using a CTI link extension, it is

monitored

.

2. Calls to a QCC or non-monitored DLC do not initiate screen pop at the
operator position, but when an operator directs a call to an extension
using a CTI application, caller information does initiate screen pop. If
the DLC is non-monitored, screen pops can occur after the DLC
releases the call.

3. Calls transferred from Cover buttons on non-monitored DLCs do not
initiate screen pop at the destination extension.

HotLine Feature 0

The Release 5.0 HotLine feature is designed for retail sales, catalogue sales, and
other types of businesses and organizations and is available in all three modes of
system operation. It allows a system manager to program a single-line telephone
extension connected to an 008 OPT, 012, or 016 module as a HotLine. When a
user lifts the handset at the HotLine extens i on, the tele pho ne auto mati c all y dia ls
the inside extension or outside telephone number programmed as the first
Personal Speed Dial number (code #01) for the extension. The system does not
permit calls to be transferred, put on hold, or conferenced. (A user can press the

telephone’s Hold button, if it has one, to put a call on local hold, but the call
cannot be redirected in any way. Switchhook flashes are ignored.)

Issue 1

August 1998

Page xxixRelease 5.0 Enhancements (June 1997)

DLC. When a DLC is used as a

non-

Personal Speed Dial codes can be programmed from the extension prior to
HotLine assignment (a system programming function). Alternatively, a Personal
Speed Dial code can be programmed from the single-line telephone after HotLine
operation is assigned. However, because of security considerations, this is a one­time opportunity. Once the Personal Speed Dial number is programmed, any
changes to it or any other extension programming must be performed using
centralized telephone programming.

Any type of inside or outside line that is normally available to a single-line
telephone can be assigned to a HotLine extension. Generally, the HotLine
telephone does not receive calls, and its lines should be set to No Ring.

!

SECURITYlALERT:

If a HotLine extension accesses a loop-start line, that line should provide
reliable disconnect and be programmed for reliable disconnect. Otherwise,
a user at the extension may be able to stay on the line after a call is
completed and then make a toll call.

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

Prior Releases: Features and Enhancements

555-661-118

Group Calling Enhancements 0

Release 5.0 and later systems include Group Calling features that enhance group
calling operations.

Most Idle Hunt Type 0

In addition to the Circular (factory setting) and Linear hunt types supported in
earlier releases, a third hunt type distributes calling group calls in an order based
on which agent has waited the longest since transferring or hanging up on an
incoming calling group call. For some applications, this hunt type is more efficient
than the circular type because it takes into account the varying duration of calls.
The system distributes calls based on when an agent last completed a call, not on
when he or she last received one. This hunting method ignores non-calling group
calls. For example, if an agent transfers a call that arrived on a line not assigned

to the calling group, the calling group member’s most-idle status is unaffected.

Delay Announcement Devices 0

The system manager can designate as many as ten primary delay announcement
devices per group rather than the single device for each group that is available in
Release 4.2 and earlier systems. Furthermore, an additional secondary delay
announcement device can be specified, for a total of ten primary device
extensions and one secondary device extension per group.

Issue 1

August 1998

Page xxxRelease 5.0 Enhancements (June 1997)

A primary delay announcement device operates in the same fashion as a single
delay announcement device, playing once, as soon as it is available, for the caller
who has waited the longest for a calling group agent and has not heard a primary
delay announcement. If a secondary announcement device is used, it can use the
factory setting, which plays the announcement once, or it can be set to repeat the
announcement after a certain amount of time. The system manager programs the
time (0–900 seconds) between announcements. This setting controls both the
interval between primary and secondary announcements and the interval
between repetitions of the secondary announcement if it is set to repeat. (See
Group Calling Options in Chapter 4 for guidelines on setting the delay.)

The primary and secondary announcement options, when used together, allow an
initial message to play for callers, followed by a repeating announcement that, for
example, urges callers to stay on the line and wait for a calling group member.

Two or more groups may share an announcement device.
A primary delay announcement device can be administered as a secondary delay

announcement device.

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

Prior Releases: Features and Enhancements

555-661-118

Enhanced Calls-in-Queue Alarm Thresholds 0

Three Calls-in-Queue Alarm thresholds can be set to more clearly indicate the
real-time status of the calls waiting in the queue according to the behavior of
programmed Calls-in-Queue Alarm buttons. In earlier releases, only one Calls-in­Queue Alarm Threshold setting is available to activate the LEDs at programmed
Calls-in-Queue Alarm buttons for a calling group.

Using all three levels, the system manager sets Threshold 3 to the highest value,
Threshold 2 to a middle value, and Threshold 1 to the lowest value. A
Calls-in-Queue Alarm button indicates the severity of the alarm conditions in the
following ways:

■ If the number of waiting calls is less than the value programmed for

Threshold 1 or drops below that level, the LED is unlit.

■ If the number of waiting calls is greater than or equal to the Threshold 1

value but less than the Threshold 2 value, the LED flashes.

■ If the number of waiting calls is greater than or equal to the Threshold 2

value but less than the value for Threshold 3, the LED winks.

Issue 1

August 1998

Page xxxiRelease 5.0 Enhancements (June 1997)

■ If the number of waiting calls is greater than or equal to the highest value,

Threshold 3, the LED lights steadily.

NOTE:

A DSS (Direct Station Selector) button that is used as a
Calls-in-Queue Alarm button can only indicate two threshold levels,
either by flashing or by lighting steadily. If a calling group must use
this type of Calls-in-Queue Alarm button, only two threshold levels
should be programmed.

If all three thresholds are set to the same value, the result is one threshold only
with LED state either off or on (steady). If two values are the same, then the result
is two alarm levels (flash, steady). The factory setting is one call for all three
thresholds with LED states of off and steady.

An external alert only signals when the number of calls in the queue meets or
exceeds the programmed Threshold 3 value.

MLX-5 and MLX-5D Telephones 0

The MLX-5 nondisplay and MLX-5D display telephones are compatible with all
system releases. The display telephone includes a 2-line by 24-character display,
and both telephones come with 5 line buttons. In systems prior to Release 5.0, the
MLX-5 and MLX-5D telephones are treated as MLX-10 and MLX-10D telephones
respectively. As of Release 5.0, the system recognizes the MLX-5 and MLX-5D
telephones as 5-button telephones.

If these telephones are connected to communications system releases prior to 5.0
they are recognized by the communications system as 10 button telephones.

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

Prior Releases: Features and Enhancements

555-661-118

Release 4.2 Enhancements (June 1997) 0

Release 4.2 includes all Release 4.1 functionality, plus the enhancements listed
below. There are no hardware changes for Release 4.2.

Additional Network Switch and Services Options for ISDN Primary Rate Interface (PRI) 0

Release 4.2 of the system supports connectivity to MCI® or local exchange carrier
(LEC) PRI services and to the following central office switch types (in addition to

the 4ESS™ and 5ESS

services):

■ NORTEL

■ NORTEL DMS-250 generic MCI07 serving the MCI network

■ Digital Switch Corporation DEX600E generic 500-39.30 serving the MCI

network

®

switch types that carry for AT&T Switched Network

®

DMS™-100 BCS 36 for local exchange carrier services

Issue 1

August 1998

Page xxxiiRelease 4.2 Enhancements (June 1997)

Beginning with Release 4.2, the following MCI PRI and PRI local exchange carrier
(LEC) services (along with AT&T Switched Network Services) can be provided to
users of the MERLIN LEGEND Communications System:

■ MCI Toll Services for DMS-250 or DEX600E switch type:

®

—MCI Prism

service for domestic outgoing long-distance and
international voice calls; for domestic outgoing 56-kbps restricted,
64-kbps unrestricted, and 64-kbps restricted circuit-switched data calls

®

—MCI VNet

service for incoming and outgoing domestic and voice calls;
for 56-kbps restricted, 64-kbps restricted, and 64-kbps unrestricted
circuit-switched data calls

—MCI 800 for domestic, toll-free, incoming voice calls
—MCI 900 service numbers

■ LEC services for DMS-100 switch types:

—DMS Virtual Private Network service for calls between the MERLIN

LEGEND Communications System and another commu nications
system (such as another MERLIN LEGEND Communications System)

—DMS INWATS (Inward Wide Area Telephone Service) for domestic

toll-free incoming voice calls

—DMS OUTWATS (Outward Wide Area Te lep hon e Ser vice ) for domes ti c

outgoing long-distance voice calls

—DMS FX (foreign exchange) to provide local call rating for calls from the

local exchange to the area serviced by the foreign exchange.

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

Prior Releases: Features and Enhancements

555-661-118

—DMS tie trunk service to provide private exchange call rating for calls

placed on a dedicated central office facility between the MERLIN
LEGEND Communications System and another commu nications
system (such as another MERLIN LEGEND Communications System)

Improvements to Station Message Detail Recording (SMDR) and Support for MERLIN LEGEND Reporter Application 0

The SMDR feature is enhanced to provide more details about calling group agent
activities and to help system managers assess the effectiveness of call centers in
terms of both agent performance and the adequacy of facilities to handle inbound
calls. These improvements apply to calling groups that are programmed as Auto
Login or Auto Logout type. The SMDR and MERLIN LEGEND Reporter features
listed are administrable:

■ T ALK Fie ld. For Auto Login and Auto Logout calling groups, the TALK field

records the amount of time a calling group agent spends on a call.

■ DUR. (DURATION) Field. For Auto Login and Auto Logout calling groups,

call timing begins when a call arrives at MERLIN LEGEND
Communications System and not after a preset number of seconds. Call
timing ends when the call is disconnected; either the caller or the agent
hangs up. This allows the system manager to determine how long a caller
waited for an agent’s attention.

Issue 1

August 1998

Page xxxiiiRelease 4.2 Enhancements (June 1997)

■ Coding of Calls on Reports. An asterisk (*) appears in the call record

when:

a. A call is not answered by an Auto Login or Auto Logout calling group

agent and is abandoned while waiting for an agent.

b. The call is answered by someone not a member of an Auto Login or

Auto Logout calling group.

An exclamation point (!) signals that an Auto Login or Auto Logout agent
handled a call that was answered by someone who was not a member of
that Auto Login or Auto Logout with Overflow group. An ampersand (&) in
the call record indicates that the group’s overflow receiver answered the
call.

MERLIN LEGEND Reporter 0

MERLIN LEGEND Reporter provides basic call accounting system reports for all
incoming calls to Auto Login or Auto Logout type calling groups. MERLIN
LEGEND Reporter assists in determining the effectiveness of calling group
agents, assessing the level of service provided to callers, and ascertaining
whether adequate incoming phone lines and agents are available to handle peak­call load. The SMDR Talk Time option sets up special call records used by

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

555-661-118

Prior Releases: Features and Enhancements

MERLIN LEGEND Reporter. The default is Off, in which case the Release 4.0
SMDR reports are available. If the option is set to On, the following new reports
are provided:

■ Organization Detail Report

■ Organization Summary and Trends Report

■ Selection Detail Report

■ Account Code Report

■ Traffic Report

■ Extension Summary Report

■ Data Report

■ Talk and Queue Time Distribution Report

■ Time of Day Report

■ ICLID Call Distribution Report

■ Facility Grade of Service Report

Issue 1

August 1998

Page xxxivRelease 4.2 Enhancements (June 1997)

Maintenance Enhancements 0

Change to Permanent Error Alarm 0

Beginning with Release 4.2, the most recent permanent error alarm is not shown
on the System Error Log menu screen but is available as an option from that
screen. For details, refer to the Maintenance section of the technician guide,

Installation, Programming, and Maintenance.

Enhanced Extension Information Report 0

Beginning with Release 4.2, the Extension Information Report includes the
Extension Status (ESS) and supervisory mode of each extension.

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

Prior Releases: Features and Enhancements

555-661-118

Release 4.1 Enhancements (June 1997) 0

Release 4.1 includes all Release 4.0 functionality, plus the enhancements listed
below. There are no hardware changes in Release 4.1.

Coverage Timers Programmed for Individual Extensions 0

Beginning with Release 4.1, coverage timers, which control the duration of the
delay before calls are sent to each level of coverage, are changed as follows:

■ The Group Coverage Ring Delay (1–9 rings) is programmed on individual

extensions and replaces the Coverage Delay Interval programmed
systemwide in previous releases.

■ The Primary Cover Ring Delay (1–6 rings) and Secondary Cover Ring

Delay (1–6 rings), programmed on individual extensions, replace the Delay
Ring Interval programmed systemwide in previous releases.

These enhancements allow the system manager to customize coverage call
delivery to match individual extensions’ call-handling requirements.

Issue 1

August 1998

Page xxxvRelease 4.1 Enhancements (June 1997)

Night Service with Coverage Control 0

Beginning with Release 4.1, a system manager can enable the Night Service
Coverage Control option to automatically control the status of telephones
programmed with Coverage VMS (voice messaging system) Off buttons,
according to Night Service status.

When Coverage Control is enabled and the MERLIN LEGEND Communications
System is put into Night Service, all programmed Coverage VMS Off buttons are
automatically turned off (LED is unlit) and all eligible outside calls are sent to the
assigned voice messaging system calling group with normal ringing delay. When
Night Service is deactivated during the day, all programmed Coverage VMS Off
buttons are automatically turned on (LED is lit) and voice mail coverage is
disabled for outside calls.

Users can override the Coverage VMS Off button status at any time by pressing
the programmed Coverage VMS Off button to turn the LED on or off.

Night Service Group Line Assignment 0

Beginning with Release 4.1, a system manager can assign lines to Night Service
groups to control handling of after-hours calls received on individual lines. This
capability replaces the automatic assignment to Night Service groups of only
those lines that ring on the Night Service operator console. An outside line must
be assigned to a Night Service group to receive Night Service treatment.

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

Prior Releases: Features and Enhancements

With this enhancement, Night Service can be activated and deactivated on lines
that do not appear on operator consoles (for example, personal lines), and lines
appearing at operator positions can be excluded from Night Service.

555-661-118

Forward on Busy 0

Beginning with Release 4.1, the Forward, Follow Me, and Remote Call Forward
features are enhanced to remove the requirement that a call be ringing at an
extension before it can be forwarded. With the Forward on Busy enhancement, a
call to an extension with no available SA (System Access) or ICOM (Intercom)
buttons is forwarded immediately to the programmed destination, preventing the

caller from hearing a busy signal from the intended call recipient’s extension.

Maintenance Testing for BRI Facilities that Are Part of Multiline Hunt Groups (MLHGs) 0

Beginning with Release 4.1, the NI-1 BRI (National Integrated Services Digital
Network-1 Basic Rate Interface) Provisioning Test Tool is enhanced to include
testing for BRI facilities that are part of Multiline Hunt Groups (MLHGs).

Issue 1

August 1998

Page xxxviRelease 4.0 Enhancements (March 1996)

The NI-1 BRI Provisioning Test Tool is used by Lucent Technologies maintenance
personnel on MERLIN LEGEND Communications Systems that include a 800
NI-BRI module. Technicians use the tool during system installation and
maintenance to test the functionality of the BRI lines and to report analyzed
results.

Release 4.0 Enhancements
(March 1996) 0

Release 4.0 includes all Release 3.1 functionality, plus the enhancements listed
below.

Support for Up to 200 Extensions 0

An expanded dial plan supports up to 200 tip/ring devices.

Support for National ISDN BRI Service 0

This service (Hybrid/PBX and Key modes) provides an alternative to loop-start
and ground-start lines/trunks for voice and digital data connectivity to the central
office. Each of the two B-channels (
voice and one data call at any given time. The data speeds on a B-channel are up
to 28.8 kbps for analog data and up to 64 kbps for digital data, which is necessary
for videoconferencing and other high-speed applications. Release 4.0 supports
the IOC Package “S” (basic call handling) service configuration and Multiline Hunt
service configuration on designated CO switches.

bearer channels

) on a BRI line can carry one

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

Prior Releases: Features and Enhancements

555-661-118

New Control Unit Modules 0

Release 4.0 supports a new NI-BRI line/trunk module and a higher-capacity
tip/ring module.

800 NI-BRI Module 0

This new module connects NI-BRI trunks to the MERLIN LEGEND system for
voice, high-speed data, and video transmission.

016 Tip/Ring Module 0

This new module supports a 200-extension dial plan by providing 16 ports for
tip/ring devices. Applications that use a tip/ring interface can connect to this
board. All 16 ports can ring simultaneously. Four touch-tone receivers (TTRs) are

included on the module as well. The module’s ringing frequency (default 20 Hz)
can be changed through programming to 25 Hz for those locations that require it.

Downloadable Firmware for the
016 and NI-BRI Modules 0

Issue 1

August 1998

Page xxxviiRelease 4.0 Enhancements (March 1996)

The Personal Computer Memory Card International Association (PCMCIA)
technology introduced in Release 3.0 continues to support these two new boards
for installation and upgrade in Release 4.0. A Release 3.0 or later processor is
required for PCMCIA technology.

Support for 2B Data Applications 0

A Lucent Technologies-certified group and desktop video application can use two
B-channels to make video/data calls when connected to a single MLX extension
jack programmed for 2B data. The 2B data devices must be equipped with
ISDN-BRI interfaces. NI-1 BRI, PRI, or T1 Switched 56 facilities support 2B data
communications at 112 kbps (using two 56-kpbs channels) or 128 kbps (using two
64-kbps B-channels). This feature is available for Hybrid/PBX and Key modes
only.

Support for T1 Switched 56 Digital Data Transmission 0

For Hybrid/PBX and Key mode systems, Release 4.0 expands support of T1
functionality by providing access to digital data over the public switched 56-kbps
network, as well as to digital data tie-trunk services. Users who have T1 facilities
for voice services can now use them for video or data calls at rates of 56 kbps per
channel (112 kbps for video calls using 2B data). The Release 4.0 offering also
includes point-to-point connectivity over T1 tie trunks, allowing customers to
connect two MERLIN LEGEND Communications Systems or a MERLIN LEGEND

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

Prior Releases: Features and Enhancements

555-661-118

Communications System with a Lucent Technologies DEFINITY® G1.1
Communications System or DEFINITY Enterprise Communications Server. The
two communications systems can be co-located or at different sites.

Forwarding Delay Option 0

Each user can program a Forwarding Delay setting for the Forward, Remote Call
Forwarding, or Follow Me featu res. The forwarding delay is the number of times
that a call rings at the forwarding extension before the call is sent to the receiver.
The delay period gives the original call recipient time to answer or to screen calls
by checking the displayed calling number (if available). The delay can be set at 0
up to 9 rings. The factory setting for the forwarding delay is 0 rings (no delay).

Voice Announce on Queued Call Console 0

The system manager can enable the fifth Call button on a QCC console

(Hybrid/PBX mode only) to announce a call on another user’s speakerphone
(providing the destination telephone has a voice announce-capable SA button
available). A QCC cannot receive voice-announced calls; they are received as
ringing calls. The factory-set status for the fifth Call button is Voice Announce
disabled.

Issue 1

August 1998

Page xxxviiiRelease 4.0 Enhancements (March 1996)

Time-Based Option for
Overflow on Calling Group 0

Release 4.0 has added a

number of calls

limit. If the Overflow Threshold Time option is set to a valid
number between 1 and 900 seconds, calls that remain in the calling group queue
for the set time are sent to the overflow receiver. If the overflow threshold time is
set to 0, overflow by time is turned off. The factory-set time limit is 0 seconds (off).

time

limit for calls in queue in addition to the previous

Single-Line Telephone Enhancements 0

The following changes enhance the performance of single-line telephones:

■ Disable Transfer. Through centralized telephone programming, the

system manager can disable transfer by removing all but one SA or ICOM
button from the extension.

■ No Transfer Return. When a handset bounces in its cradle, the system

interprets this as a switchhook flash and attempts to transfer a call. When
the transfer attempt period expires, the user’s telephone rings. Release 4.0
eliminates this unintended ringing by disconnecting the call in situations
where a switchhook flash is followed by an on-hook state and a dial tone is
present.

■ Forward Disconnect. All ports on 008 OPT, 012, and 016 modules now

send forward disconnect to all devices connected to them when forward
disconnect is received from the CO. This enhancement prevents the

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

Prior Releases: Features and Enhancements

trunk/line from being kept active when one end disconnects from the call. If
an answering machine is connected to the port, it does not record silence,
busy tones, or other useless messages. This operation is not
programmable.

555-661-118

Seven-Digit Password for SPM 0

Release 4.0 has increased system security by requiring a 7-digit password for
system managers or technicians who use SPM to perform programming or the
Trunk Test procedure. This password is for use in addition to a remote access
barrier code.

Release 3.1 Enhancements
(March 1996) 0

Release 3.1 includes all Release 3.0 functionality, plus the enhancements listed
below.

Issue 1

August 1998

Page xxxixRelease 3.1 Enhancements (March 1996)

Call Restriction Checking for Star Codes 0

Beginning with Release 3.1, a system manager can add star (*) codes to Allowed
and Disallowed Lists to help prevent toll fraud. Star codes, typically dialed before
an outgoing call, enable telephone users to obtain special services provided by
the central office (CO). For example, in many areas, a telephone user can dial

*67 before a telephone number to disable central office-supplied caller

identification at the receiving party’s telephone. You must contract with your
telephone service provider to have these codes activated.

When users dial star codes, the system’s calling restrictions determine whether
the codes are allowed. If they are allowed, the system’s calling restrictions are
reset and the remaining digits that the users dial are checked against the calling
restrictions.

Trunk-to-Trunk Transfer Set for Each Extension 0

This enhancement to the Transfer feature enables the system manager to allow or
disallow trunk-to-trunk transfer on a per-extension basis. In Release 3.1 and later
systems, the default setting for all extensions is restricted.

Programmable Second Dial Tone Timer 0

The system manager can assign a second dial tone timer to lines/trunks, in order
to help prevent toll fraud (for example, when star codes are used). After receiving
certain digits dialed by a user, the CO may provide a second dial tone, prompting
the user to enter more digits. If this second dial tone is delayed, and the user dials

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

Prior Releases: Features and Enhancements

digits before the CO provides the second dial tone, there is a risk of toll fraud or
misrouting the call. The second dial tone timer enables the system manager to
make sure that the CO is ready to receive more digits from the caller.

555-661-118

Security Enhancements 0

The sections below outside security measures that are implemented in Release

3.1 and later systems.

Disallowed List Including Numbers Often Associated with Toll Fraud 0

A factory-set Disallowed List 7 contains default entries, which are numbers
frequently associated with toll fraud. By default, Disallowed List 7 is automatically
assigned to both generic and integrated VMI (voice messaging interface) ports
used by voice messagi ng systems. The system manager ca n manual ly assign this
list to other extensions.

Default Pool Dial-Out Code Restriction for All Extensions 0

Issue 1

August 1998

Page xlRelease 3.1 Enhancements (March 1996)

The default setting for the pool dial-out code restriction (Hybrid/PBX mode only) is
restricted. No extension or remote access user with a barrier code has access to
pools until the restriction is removed by the system manager.

Default Outward Restrictions for VMI Ports 0

Ports assigned for use by voice messaging systems (generic or integrated VMI
ports) are now assigned outward restrictions by defau lt. If a voice messaging

system must be allowed to call out (for example, to send calls to a user’s home
office), the system manager must remove these restrictions.

!

SECURITYlALERT:

Before removing restrictions, it is strongly recommended that you read

Appendix A, “Customer Support Information.”

Default Facility Restriction Level (FRL) for VMI Ports 0

The default Automatic Route Selection (ARS) FRL for VMI ports is 0, restricting all
outcalling.

Default for the Default Local Table 0

The default Automatic Route Selection (ARS, Hybrid/PBX mode only) FRL has
changed to 2 for the Default Local table. System managers can easily change an
extension default of 3 to 2 or lower in order to restrict calling. No adjustment to the
route FRL is required.

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

Prior Releases: Features and Enhancements

555-661-118

New Maintenance Procedure for Testing Outgoing Trunks 0

Technicians must enter a password in order to perform trunk tests.

!

SECURITYlALERT:

The enhancements in Release 3.1 help increase the security of the MERLIN
LEGEND System. To fully utilize these security enhancements, be sure to
read and understand the information in these upgrade notes and in the
relevant system guides.

Issue 1

August 1998

Page xliRelease 3.1 Enhancements (March 1996)

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

Prior Releases: Features and Enhancements

555-661-118

Issue 1

August 1998

Page xliiRelease 3.1 Enhancements (March 1996)

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

About This Book

555-661-118

About This Book

The MERLIN LEGEND Communications System is an advanced digital switching
system that integrates voice and data communications features. Voice features
include traditional telephone features, such as Transfer and Hold, and advanced
features, such as Group Coverage and Park. Data features allow both voice and
data to be transmitted over the same system wiring.

Issue 1

August 1998

Page xliiiIntended Audience

Intended Audience 0

This book is specifically designed to help you fulfill your role as system manager
of the MERLIN LEGEND
you need little or no knowledge of the system and no special expertise.

Communications System Release 6.1. T o use this guide,

How to Use This Book 0

This book provides background information about all aspects of the system,
including system components and features, as well as specific information and
procedures for managing the system.

The first two chapters are especially important as an introduction to the system

and your role as system manager. Therefore, you should read Chapter 1, “Read
This First,” and Chapter 2, “About the System,” if you are not already familiar with
these topics.

For more detailed information about features, system programming, and system
components, refer to the

“Related Documents” on page –xlvi

documentation, together with ordering information.

Feature Reference

provides a complete list of system

and to

System Programming

.

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

About This Book

In the USA only, Lucent Technologies provides a toll-free customer Helpline
24 hours a day. Call the Helpline at 1 800 628-2888 (consultation charges may
apply), or call your Lucent Technologies representative, if you need assistance
when installing, programming, or using your system.

Outside the USA, if you need assistance when installing, programming, or using
your system, contact your Lucent Technologies representative.

555-661-118

Terms and Conventions Used 0

The terms described here are used in preference to other, equally acceptable
terms for describing communications systems.

Lines, Trunks, and Facilities

Issue 1

August 1998

Page xlivTerms and Conventions Used

Facility

telephone system and the telephone company central office. Technically, a
connects a switch to a switch, for example, the MERLIN LEGEND
Communications System to the central office. Technically, a
facility or a communications path that does not connect switches, for example, an
intercom line or a Centrex line. However, in actual usage, the terms
are often applied interchangeably. In this guide, we use
to refer to facilities in general. Specifically, we refer to digital
specific terms such as
When you talk to your local telephone company central office personnel, ask
about the terms they use for the specific facilities they connect to your system.

Some older terms have been replaced with new ones. The following list shows the
old term and the new term.

Old New

trunk module line/trunk module
trunk jack line/trunk jack
station extension
station jack extension jack
analog data station modem data workstation
7500B data station ISDN terminal adapter data workstation
analog voice and data station analog voice and modem data

digital voice and analog data station MLX voice and modem data workstation
analog data-only station modem data-only workstation
7500B data-only station ISDN terminal adapter data-only

MLX voice and 7500B data station MLX voice and ISDN terminal adapter

is a general term that designates a communications path between a

line

is a loop-start

line

and

lines/trunks

facilities

personal line, ground-s tart trunk, DID trunk

workstation

workstation
data workst ation

and

line/trunk

. We also use

, and so on.

trunk

trunk

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

About This Book

555-661-118

Typographical Conventions 0

Certain type fonts and styles act as visual cues to help you rapidly understand the
information presented:

Example Purpose

It is

very

important that you follow these

must

steps. You
before touching the connection.

The part of the headset that fits over
one or both ears is called a

If you press the Feature button on an
MLX display telephone, the display lists
telephone features you can select. A
programmed Auto Dial button gives
you instant access to an inside or
outside number.

Choose
screen.

To activate Call Waiting, dial

([W3URJfrom the display

attach the wristband

headpiece.

 Constant-width type in italics indicates

Italics indicate emphasis.

Italics also set off special terms.

The names of fixed-feature, factory­imprinted buttons appear in bold. The
names of programmed buttons are
printed as regular text.

Plain constant-width type indicates text
that appears on the telephone display
or PC screen.

characters you dial at the telephone or
type at the PC.

Issue 1

August 1998

Page xlvSecurity

Product Safety Advisories 0

Throughout these documents, hazardous situations are indicated by an
exclamation point inside a triangle and the word

!

WARNING:

Warning indicates the presence of a hazard that could cause death or
severe personal injury if the hazard is not avoided.

!

CAUTION:

Caution indicates the presence of a hazard that could cause minor personal
injury or property damage if the hazard is not avoided.

Security 0

Certain features of the system can be protected by passwords to prevent
unauthorized users from abusing the system. You should assign passwords
wherever you can and limit knowledge of such passwords to three or fewer
people.

CAUTION

or

WARNING

.

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

About This Book

Nondisplaying authorization codes and telephone numbers provide another layer

of security. For more information, see Appendix A, “Customer Support
Information.”

Throughout this document, toll fraud security hazards are indicated by an
exclamation point inside a triangle and the words

!

SECURITYlALERT:

555-661-118

Security Alert indicates the presence of toll fraud security hazard. Toll fraud
is the unauthorized use of your telecommunications system by an

unauthorized party (for example, persons other than your company’s
employees, agents, subcontractors, or persons working on your company’s
behalf). Be sure to read “Your Responsibility for Your System’s Security” on
the inside front cover of this book and “Security of Your System: Preventing
Toll Fraud” in Appendix A, “Customer Support Information.”

Related Documents 0

SECURITY ALERT

Issue 1

August 1998

Page xlviRelated Documents

.

In addition to this book, the documents listed below are part of the MERLIN
LEGEND documentation set. Within the continental United States, these
documents can be ordered from the Lucent Technologies BCS Publications
Center by calling 1 800 457-1235. Outside the United States, call 317-322-6791.

Document No. Title

System Documents

555-661-100

Customer Documentat ion Package

Consists of paper versions of the

System Manager’s Guide,

Feature Reference, and System Programming.

555-661-110
555-661-111
555-661-112
555-661-113
555-661-116
555-661-118
555-661-150
555-661-800

Feature Reference
System Programming
System Planning
System Planning Forms
Pocket Reference
System Manager’s Guide
Network Reference
Customer Reference CD-ROM

Contains the

System Manager’s Guide, Feature Reference,

System Programming, and Network Reference.

Telephone User Support

555-660-122
555-630-150

MLX Display Telephones User’s Guide
MLX-5D, MLX-10D, and MLX-10DP Display Telephone Tray
Cards (5 cards)

555-630-153
555-660-124

MLX-28D and MLX-20L Telephone Tray Cards (5 cards)
MLX-5® and MLX-10® Nondisplay Telephones User’s Guide

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

About This Book

Document No. Title

555-630-151

555-661-118

Telephone User Support (

MLX-10 and MLX-5 Nondisplay Telephone Tray Cards
(6 cards)

555-630-155
555-660-120
555-660-126
555-660-138

555-660-134
555-660-132
555-660-136

555-660-130
555-640-105

555-660-140

MLX-16DP Display Telephone Tray Ca rds (5 cards)

Analog Multiline Telephones User’s Guide
Single-Line Telephones User’s Guide
MDC and MDW Telephones User’s Guide

System Operator Support

MLX Direct-Line Consoles Operator’s Guide
Analog Direct-Line Consoles Operator’s Guide
MLX Queued Call Console Operator’s Guide

Miscellaneous User Support

Calling Group Supervisor’s Guide
Data/Video Reference

Documentation for Qualified Technicians

Installation, Programming, & Maintenance (IP&M) Binder

Includes:

Installation, System Programming & Maintenance

(SPM), and Maintenance & Troubleshooting

Toll Fraud Security

555-025-600

BCS Products Security Handbook

continued

Issue 1

August 1998

Page xlviiHow to Comment on This Book

)

How to Comment on This Book 0

We welcome your comments, both positive and negative. Please use the
feedback form on the next page to let us know how we can continue to serve you.
If the feedback form is missing, write directly to:

Documentation Manage r
Lucent Te chn ol ogies
211 Mount Airy Road, Room 2W226
Basking Ridge, NJ 07920

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

About This Book

555-661-118

Issue 1

August 1998

Page xlviiiHow to Comment on This Book

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

Read This First

1

555-661-118

Read This First 1

This chapter includes important background information to help you perform the
system manager function and understand how to use this guide.

Issue 1

August 1998

Page 1-1

1

After a brief overview, this chapter provides the following information:

■ A description of system manager responsibilities

■ A description of the planning forms that are the record of how your system

is set up

■ Information about upgrading the system

■ A description of environmental requirements for correct and safe system

operation

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

Read This First

1

555-661-118

Overview 1

Although the MERLIN LEGEND Communications System is technologically
sophisticated and offers state-of-the-art services, it is designed for ease of use
and management.

Once Lucent Technologies personnel install and program the system, it should
demand little of your time. If you need to make changes to the system as business
needs change, or if there is a problem with the system, you can use the system
reference books and get assistance from Lucent Technologies personnel, as
needed.

When you do need to perform simple system management tasks, several easy-to­use tools are available to help you. For example, to program changes in the
system, you can use a specially designated system telephone that has a display,
or you can use a personal computer (PC).

Whether using a system telephone or a PC to program system changes, you

simply make selections from menus; you don’t have to remember any special
commands or codes.

Issue 1

August 1998

Page 1-2Overview

If you need detailed information or step-by-step instructions, the system guides
clearly describe the choices.

Although the number of system reference guides may seem overwhelming at first,
this book contains clear instructions on how to use the guideshow to quickly find
a solution or needed information when a problem or new business need arises.

There are also several features to help you manage the system, for example,
reports that provide information about how the system is set up, a record of all
incoming and outgoing calls, and an error log that describes any system errors
that occur. These reports can be viewed on screen or printed out.

If you run into a problem at any time while you are using or managing the system,
experienced Lucent Technologies personnel can provide information and
instructions, including your local Lucent Technologies representative as well as
the Lucent T echnologies national technical support organization at the Lucent
Technologies Helpline (1 800 628-2888; consultation charges may apply).

Using This Guide 1

This guide is specifically designed to help you fulfill your function as system
manager.

To use this guide, you need little or no knowledge of the system and no special
technical expertise. Also, wherever possible, the guide provides quick reference
tables and illustrations, so that you don’t have to wade through dense text to find
the information you need.

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

Read This First

1

555-661-118

This guide is divided into two parts:

■ The first four chapters provide information to help you understand the

system, including its hardware components and features.

■ The last four chapters specifically deal with managing the system, including

how to perform the most common system management tasks and how to

“troubleshoot” system problems, that is, what you can do on your own
before you call Lucent Technologies for help.

You should scan the first four chapters now so that you have a general idea of
how the system works. Then, if and when you need a stronger understanding
about a particular aspect of the system or a common system management task,
you can read that chapter or section more carefully.

Related Guides 1

Three categories of guides are available for the system:

■ User Guides and Operator Guides. Each of these guides describes the

use and features of a specific telephone or operator console.

Issue 1

August 1998

Page 1-3Overview

■ System Reference Guides. These guides provide detailed information

about system features and capabilities:

Feature Reference

—The

contains information about features and

applications.

System Programming

—

includes detailed, step-by-step procedures to

program the system.

■ Special Reference Guide. For Release 6.0 and later systems

(Hybrid/PBX mode only), the

Network Reference

provides detailed
information about private networks made up of linked MERLIN LEGEND
Communications Systems and/or DEFINITY Enterprise Communications
Server/ProLogix Solutions systems. The features and system management
issues associated with private networks are not discussed in the

Manager’s Guide

.

System

NOTE:

An additional guide,

System Planning

, contains information about
completing the planning forms and is used mainly by Lucent Technologies
personnel.

Equipment and Operations Reference

contains information

about system equipment; it has not been updated since Release 3.0.

Feature Reference

The

and

System Programming

are essential when you

perform the common system management tasks described in Chapter 6,

“Managing the System,” or when you otherwise modify the system as your
company needs change and expand.

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

Read This First

1

555-661-118

Both of these guides are described in Chapter 7, “Learning More,” which helps
you quickly find what you need in each guide.

Your Role as System Manager 1

As system manager, you coordinate the system to ensure the best possible
benefit and performance for your company. Primarily, this involves acting as a
contact for people using the system and for Lucent Technologies personnel, as
well as making changes to the system as the needs of your company change or
expand.

When the system is installed, experienced Lucent Technologies personnel
complete all of the programming required to get the system up and running. But if
and when you need to make changes to the system, you don’t have to be an
engineer, a programmer, or a telecommunications specialist. It is more important
that you understand the needs of your company and the system’s users.

If you like, you can use a PC to do the programming. Otherwise, you can use a
system telephone, with a display, for most programming tasks. In both cases,
menus guide you through the process. You don’t need to remember any special
commands or codes.

Issue 1

August 1998

Page 1-4Your Role as System Manager

If you want more detailed instructions, you can use the step-by-step procedures in
the system’s manuals. The instructions are designed so that you can follow them
easily. To quickly find the information or procedure you need, read Chapter 7,
“Learning More,” for descriptions of the system reference guides and how to use
them. As a last resort, call the Lucent Technologies Helpline at 1 800 628-2888
(consultation charges may apply).

System Manager Responsibilities 1

Depending on the size and complexity of a system, more than one person may
perform the system manager function. Lucent Technologies personnel carry out
more complex tasks or help you implement them.

Specifically, the responsibilities of the system manager may include the following
tasks:

■ Pre-installation

—Ensuring appropriate selection of equipment and features by surveying

your company’s employees and providing the information to your Lucent

Techn olo gies representative
—Helping develop a floor plan that illustrates where to install equipment
—Participating in any training that your Lucent Technologies

representative provides for you and for telephone users

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

Read This First

1

■ Post-installation

555-661-118

—Functioning as the in-house contact both for your system’s users and for

Lucent Te chn ologi es personn el
—Planning for, and sometimes implementing, system modifications that

become necessary as your company changes and grows
—Maintaining records of changes made to the system
—Preparing an updated in-house directory of telephone extension

numbers
—Training new users
—Screening repair and/or operational problems or questions and reporting

them, if necessary, to the Lucent Technologies Helpline

(1 800 628-2888; consultation charges may apply)
—Maintaining the security of the system and overseeing features that help

prevent fraud

Issue 1

August 1998

Page 1-5The System Planning Forms

The System Planning Forms 1

When a MERLIN LEGEND Communications System is installed and set up,
Lucent T echnologies personnel program it to function according to the options the
customer selects and the features needed. T o make the programming process run
smoothly, the Lucent Technologies personnel fill out and refer to planning forms
that record all of the system’s settings and features, including those that affect the
entire system and those that affect individual extensions. Lucent Technologies
representatives use a book called
forms at the time of an installation or upgrade.

After the system is installed and programmed, copies of these completed planning
forms are available for you, as system manager, to use for reference and to
update as you make changes to the system. The forms are a complete record of
how your system is set up, so keep them in a safe place.

A list of the forms and a description of each form’s purpose are in Appendix D.
One of the forms is the Employee Communications Survey. Use this form if you
need to conduct a survey of your users’ needs; for example, to plan system
modifications as yo ur compa ny expan ds.

If you have not received the completed planning forms for your system, contact
your Lucent Technologies representative. If you need a blank set of forms, call the
Lucent Technologies Customer Information Center at 1 800 457-1235.

System Planning

as a guide when filling out

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

Read This First

1

555-661-118

Upgrading the System 1

There are three types of system upgrades:

■ Feature Upgrade. To upgrade your system to the latest “release” or

version as soon as it becomes available. With little or no changes in your
existing equipment or wiring, your system can be easily adapted and
expanded as your company’s business needs change and grow.

■ Maintenance Upgrade. To fix problems in the system.

■ Processor Module Replacement. In some cases, upgrading the system

requires the replacement of the processor module.

In Release 3.0 and later, an upgrade basically involves inserting a memory card
(similar to a computer disk) into a slot on the system’s processor or “brain” (part of
the system’s

control unit

for a maintenance upgrade, Lucent Technologies provides the memory card at no
cost.

For more information about upgrading your system, contact your Lucent
Techn olo gie s re pres enta t ive.

). For a feature upgrade, you need a new memory card;

Issue 1

August 1998

Page 1-6Upgrading the System

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

Read This First

1

555-661-118

Environmental Requirements 1

The control unit requires a regulated environment that is temperature-controlled,
clean, and not exposed to direct sunlight. In addition, proper power and grounding
are essential for correct and safe system operation, and to protect the system
from lightning, power surges, and other problem s.

If the control unit and other system components were installed by qualified Lucent
Technologies technicians, these requirements were met during installation.

After installation, you can help the correct operation of the system by making sure
the following rules are observed:

■ The electrical outlet for the control unit must not be controlled by a switch.

Plugging the control unit into an outlet that can be turned on and off by a
switch invites accidental disconnection of the system.

■ The AC outlet must be properly grounded by using an AC receptacle for a

3-prong plug.

■ Do not install the control unit outdoors.

Issue 1

August 1998

Page 1-7Environmental Requirements

■ Do not place the control unit near extreme heat (furnaces, heaters, attics,

or direct sunlight).

■ Do not expose the control unit to devices that generate electrical

interference (such as arc welders, or the motors of air conditioners,
ventilators, compressors, and so on).

■ Each auxiliary power unit requires one outlet.

■ Do not expose the control unit to moisture, corrosive gases, dust,

chemicals, spray paint, or similar material.

■ Do not place anything that could block ventilation on top of or around the

carriers.

■ Do not install the control unit under any device that may drip fluid, such as

an air conditioner.

■ For maintenance purposes, the control unit should be mounted in an

accessible location. There should be sufficient room and lighting available
to remove the cover(s) and replace modules without moving furniture,
boxes, or other objects.

For more information, contact your Lucent Technologies representative.

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

Read This First

1

555-661-118

Issue 1

August 1998

Page 1-8Environmental Requirements

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

About the System

2

555-661-118

About the System 2

This chapter provides a general overview that introduces all of the major aspects
of the system and its operation, including:

Issue 1

August 1998

Page 2-1

2

■ Trunks

■ Modes of operation

■ System components

■ Features

■ Applications

■ Programming the system

■ System capacities

■ Auxiliary components

■ Data communications capabilities

NOTE:

Release 6.0 and later systems (Hybrid/PBX mode only) support private
connections between MERLIN LEGEND Communications Systems and
DEFINITY Enterprise Communications Server (ECS) or DEFINITY
ProLogix Solutions systems using private networks or the public switched
telephone network. This aspect of the system is not covered in this guide.
For complete information, see the

More information about specific system topics is included throughout the guide.

Feature Reference

The

and

System Programming

Network Reference.

provide detailed information.

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

About the System

2

555-661-118

Many of the principles of telephone communications have not changed since
Alexander Graham Bell made the first phone call in 1876. Because learning about
these concepts helps explain how the system works, this chapter begins with
some background information about telephone communications. For a more

detailed history and description, see Appendix B, “About Telecommunications.”
If you are already familiar with the concepts described in this chapter, you can skip

the chapter.

Background 2

Alexander Graham Bell and his assistant, Thomas A. Watson, demonstrated the
first working model of a telephone on March 10, 1876. Bell made the call from a
transmitter in one room to a receiver a few rooms away.

The first telephone installations were set up like that first call, as direct
connections between one telephone and another. When more and more
telephones were installed, it quickly became impractical to have every phone
connected directly to every other phone. Thus, the concept of
developed, that is, all telephones connected physically to all other telephones, but
each telephone could make the electrical cross-connection between itself and
another phone so that the caller was connected to the called party.

Issue 1

August 1998

Page 2-2Background

switching

Again, as more and more telephones and lines were installed, it became
impractical to have each telephone perform this switching function, so all lines
from all phones were brought into a common place, called a

exchange

(see Figure 2–1) where human operators switched calls at

central office ( CO)

or

switchboards. This 2-way connection between the telephone and the CO was
(and still is) called the

local loop.

Eventually, more and more COs were created
and interconnected, until the current global telephone network evolved (see

Figure 2–2

).

As geographic areas expanded and the global telephone network evolved, and as
technological advances became available, switches also evolved and are now
fully automatic and controlled by computers.

There are now also private switches that, rather than being located at the
telephone company’s CO, are located on a company’s premises. These systems,

private branch exchanges (PBXs

called

), made sense because most of a

business’ calls are between telephones on site within the company.
The MERLIN LEGEND Communications System includes such a switch, located

on a company’s premises, that offers access to even more powerful telephone
network applications and services. It can operate as a PBX (

Hybrid/PBX mode)

or
can be set up to operate in one of two other modes that define how the system
works. The system can also use state-of-the-art telephone equipment.

The next sections briefly describe the evolution of telephone equipment and
switching. For more information, see Appendix B, “About Telecommunications.”

MERLIN LEGEND Communications System Release 6.1

T
C
(

System Manager’s Guide

About the System

2

555-661-118

elephone Company

entral Office

CO)

Issue 1

August 1998

Page 2-3Background

Customer
Premises

Figure 2–1. The Local Loop

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

About the System

2

Long Distance
(Toll) Network

555-661-118

CO

CO

Customer
Premises

August 1998

Customer
Premises

Issue 1

Page 2-4Background

Figure 2–2. The Telephone Network

Telephone Equipment 2

The first working model of a telephone consisted of a microphone (called a

transmitter

a pair of wires and a battery.
A telephone is powered by

supplied by a battery inside the phone. Beginning in 1894, COs used a common
battery to power all the telephones connected to the exchange.

The receiver for early telephones hung on a hook that activated a switch to control
the flow of direct current to the telephone. This hook was called a
term that is still used today. When a telephone handset is sitting on its cradle

on-hook

(
from the cradle (
requesting service.

) and a small loudspeaker-like device (called a

direct current (dc

) which, in early phones, was

), it draws no current from the CO. When a person removes the handset

off-hook

), current flows and signals the CO that the caller is

receiver)

connected by

switchhook

, a

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

About the System

2

555-661-118

Similarly, the CO signals the called party by sending current to his or her phone,
causing it to ring. When the called party lifts the handset from its cradle, the
current flows, indicating to the CO that the party has answered.

Bell realized that a caller needed a way to signal the other person to pick up the

phone. After experiments with various bells and buzzers, in 1878 Bell’s assistant
Watson developed a bell ringer operated by a hand crank.

When human operators handled switching, the caller used the telephone’s hand
crank to ring the operator, and then told the operator the name of the person he or
she wanted to reach. If the called party was available, the operator connected the
two parties by using a cord that had plugs at each end. Each plug had parts called

tip and a ring

a

that functioned as conductors to complete the electrical circuit.

The operator connected the two parties by plugging in one end of the cord into the

jack

caller’s connector (called a

) on the switchboard, and the other end of the cord

into the called party’s jack.
Once automatic switches were in place, telephone companies assigned numbers

to telephone service subscribers, and a dialing mechanism was built into the
telephone. The caller identified the called party to the switch by dialing the called
party’s number.

Issue 1

August 1998

Page 2-5Background

Telephone users originally dialed numbers by using a mechanical device called a

rotary dialer

. A spring wound up when turned in one direction and, on its return to
normal position, caused interruptions in the flow of current, thus creating dial
pulses recognized by the switch. The subsequent development of the touch-tone
dialer provided a further innovation: the creation of unique tones produced by
simply pressing buttons on the dialpad.

Although there are still some rotary-dial telephones in use, most modern
telephones have touch-tone dialing, which is faster and, with the advent of
services available from touch-tone phones, more versatile.

tip

and

ring

The terms

, however, still describe any telephone equipment that
involves only one line, for example, a single-line telephone (such as those in most
homes), an answering machine, or a fax machine. These are referred to as

tip/ring (T/R

) devices.

You can use several different types of telephones with the MERLIN LEGEND
Communications System, including single-line telephones, analog multiline
telephones, and MLX digital telephones. The terms

analog

and

digital

refer to the

type of signal the telephone produces:

■ Analog Signal. A signal that represents a range of frequencies, that is,

continuously variable physical qualities such as amplitude; for example, the
human voice.

■ Digital Signal. Information transmitted in a coded form (from a computer)

represented by discrete signal elements; for example, off and on or zero
and one.

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

About the System

2

555-661-118

Switching Equipment 2

As described earlier, the telephone network is composed of a number of
centralized switching locations, called

central offices (COs

circuit is connected, or switched, to another circuit. That is, the caller’s line is
connected to the called party’s line so the two can hold a conversation.

Telephone operators, who supplied the first manual switching, were slow and
costly but afforded some special functionality: calls could be forwarded, messages
taken, and calls interrupted. Electromechanical switching automated that manual
labor and made telephone service universally affordable, but the technology was
inflexible and did little more than switch calls. Now, with electronic, computer­controlled switches, both flexibility and functionality are affordable for everyone.

The Evolution of Switches 2

The method, type, capabilities, and capacities of switches have evolved as
geographic areas expanded and technological advances became available. The
following list describes each of these progressive innovations. Figure 2–3
illustrates this evolution of switching equipment.

Issue 1

August 1998

Page 2-6Background

), where a telephone

■ Private-Line Service. In the first telephone installations, communication

was directly from one telephone to another, as in Bell’s demonstration.
Thus, one telephone could communicate with only one other telephone.

■ Party-Line Service. Several telephones were connected to one line so

that a number of people could communicate in the same conversation. But
there was no way to reach a telephone on any other line.

■ Station Switching. All telephones were connected to all other telephones.

The telephone itself performed the switching and made the connection.
This was workable for a small number of telephones, but quickly became
impractical as hundreds of telephones were installed.

■ Centralized Switching. As the number of telephones grew, all the lines

from all the telephones came to a common

central office (CO)

or

exchange

so that the lines could be electrically cross-connected. Human operators
made the connections.

,

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

About the System

2

555-661-118

Telephone

Station

☎☎☎

☎

☎

Private-Line

Service

Telephone

Station

Switch

☎

☎

Party-Line

☎

Central Office

☎

Service

Issue 1

August 1998

Page 2-7Background

☎

☎

☎

☎☎

☎☎

Station Switching

☎

Figure 2–3. The Evolution of Switches

Eventually, as more and more COs were created, a hierarchy of special

(SOs) connected the COs locally and then between cities and countries for

offices

long-distance (toll)

trunks.

The following list provides an overview of the hierarchy of switching offices. Figure

2–4 illustrates the hierarchy.

■ Level 1: Trunking between COs. The first level in the hierarchy consists

of local COs with direct trunk connections between them. This is referred to
as the
be a residence with a single phone line or a business with a customer
premises switch such as the MERLIN LEGEND Communications System.

switching.

local CO network.

☎

Centralized Switching

switching

The dedicated lines between COs were called

The customer premises served by each CO can

■ Level 2: Switching between Tandem (Intermediary) SOs. When the

traffic between two COs exceeds the amount that direct trunking can
efficiently and cost-effectively serve, the COs are each connected to a third
switching office (SOs) that functions as an Intermediary. This is referred to
as the

public tandem network.

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

About the System

2

■ Level 3 and Above: Switching among All SOs. To ensure that there is a

communications path from each SO to any other SO, ever-increasing
levels of SOs combine larger and larger geographical areas. This is
referred to as the
service.

Toll
Network

Tandem
Network

555-661-118

toll network

and comprises national and international

Issue 1

August 1998

Page 2-8Background

Key:
= Level 5

= Level 4
= Level 3
= Level 2
= Level 1 (CO)

= MERLIN

LEGEND
Communications
System

= Customer

☎

Telephone

Local
Network

☎

Figure 2–4. The Switching Office Hierarchy

Today, a local area within which there is a single, uniform set of charges for
telephone service is called a
local exchange area, and a call between any two points within an exchange area
is a local call. A toll call is a call made to a point outside the local exchange area
and includes service through the switching office hierarchy.

☎

☎

☎

☎

local exchange area.

☎

☎

Switching Methods 2

For the first few decades of telephone service, human operators manually
switched calls and made the actual connections of circuits. They made the
connections at switchboards by using cords that had plugs at each end.

Approximately 120 lines terminated at answering jacks on an operator’s
switchboard. In turn, each operator had 18 cords for making connections.

When a telephone service subscriber made a call, a lamp lit at his or her jack,
telling the operator that the person on that line desired service. The operator
connected to the subscriber’s jack, and the calling party would then give the name
(and later, the telephone number) of the party he or she was calling. Then the
operator completed the call (that is, completed the circuit) by connecting the cord
to one of perhaps 10,000 subscriber jacks within reach. When the call was over

A number of COs may serve a

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

About the System

2

555-661-118

and the parties had hung up, the lamp associated with each connecting cord
would go out and the operator knew that the call was complete and the cord could
be removed.

The first automatic switch was invented in 1892 by Almon B. Strowger, an
undertaker who realized that his competitor was getting all the undertaking

business in the town, referred by the town telephone operator—who was also the
competing undertaker’s wife! The Strowger switch was an electromechanical
device controlled by the caller’s telephone (

Strowger’s switch was adapted for use in the Bell System in 1919. It was noisy
and not very flexible at offering new services but, because it was more cost­effective than human operators, it was directly responsible for making telephone
service affordable and universal.

In 1938, the Bell System developed and installed the next innovation in
electromechanical switching, and it is still in use in some areas today. It had fewer
switches, a sophisticated control mechanism, and lower maintenance. However,
like its predecessor, it was not flexible because it couldn’t be programmed.

Issue 1

August 1998

Page 2-9System Overview

station switching).

It was, therefore, a natural progression that led to the idea of using a computer,
with its inherent programmable flexibility, to control the switching operation. This
new generation of switching technology was called an

. With ever-increasing innovations in technology (beginning with the AT&T

(ESS)

No.1 ESS first installed in 1965), the Lucent T echnologies 5ESS

system handles 100,000 lines and 650,000 telephone calls per hour. The newer
digital switching systems also interface easily with high-speed digital trunks.

As mentioned earlier, the MERLIN LEGEND Communications System is a switch

located on a company’s premises, providing access to powerful features and
advanced telephone network applications and services.

System Overview 2

The MERLIN LEGEND Communications System can handle voice and data
simultaneously over the same lines, and voice features can enhance the use of
data communications. The system accommodates businesses with needs ranging
from a few telephones to over 100 telephones. Its modular design allows easy
expansion.

Many of the terms and concepts introduced in the beginning of this chapter are
used in the system. As illustrated in Figure 2–5
of incoming trunks from the telephone company’s central office (CO), connected
through the system’s

control unit

example, a PC or fax machine.

to telephones and other system equipment, for

electronic switching system

®

digital switching

, the system allows the connection

There are various types of trunks that provide different functionality. Likewise, a
variety of telephones and other equipment can be connected to the system.
Depending on the trunks and the telephones and other equipment selected, a

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

About the System

2

555-661-118

Issue 1

August 1998

Page 2-10System Overview

wide array of features and add-on products (

applications

) can function according

to the needs of your company.
The rest of this chapter provides an overview of each primary system aspect:

■ Incoming trunks

■ Modes of operation

■ System components

■ Line/trunk and extension modules

■ Features

■ Applications

■ Programming the system

■ System capacities

■ Auxiliary components

■ Data communications capabilities

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

About the System

2

Telephone
Company

MERLIN
LEGEND
Communications
System
Control Unit

555-661-118

Telephone Company
Central Office
(CO)

Incoming Trunks

)
/
L
s

s

T
e

e

A
n

n

i
(

o

L
s

h

e
e

p

n
d

e

i

l

o
s

e

t
h

T

u
p

)
l

e
O
l

a

e

t
i

S
T

S

g

L

i

g

L

r

/

D

o
o

X

l

(

S

2

L

a
S

1

X

G

n

M

0

L

G
A

8

8

4

M

0

8

8

4

0

4

8

0

0

4

PROCESSOR

P
O
W

E
R

C
A
U

T
I
O
N

O
N

O
F
F

T
u

r
n
o
f

f
p
o
w

e

r

b
i
n

e

s

f
o

e

r

r

e
t
i
n

r

g

e

o

m

r
o
v
i
n

m

g

o

d
u
l
e

s

A
G

I
N
P

U
T

F

R

G

N
D

Issue 1

August 1998

Page 2-11System Overview

Telephones
and Other
Equipment

MERLIN
LEGEND

Applications

Auxiliary
Components

Figure 2–5. System Overview

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

About the System

2

555-661-118

Incoming Trunks 2

Trunks are the telephone company’s facilities, provided by the central office (CO)
to carry voice or data communications (see Figure 2–6
trunks, each with different capabilities. These types have evolved over the years
as technology has advanced and customer needs have expanded.

The decision concerning the type of trunks chosen for your company’s system
depends primarily on your company’s needs. Other factors include cost (due to
differing capabilities, the use of some trunks is more expensive than others), and
availability (some of the advanced trunks are not available everywhere).

Your company chooses trunks before the system is installed. A Lucent
Technologies representative works with you or your company’s representative to
identify needs and, therefore, the appropriate type and number of trunks. When
the Lucent Technologies representative places the order for the system
equipment, she or he also contacts the local telephone company and arranges for
the trunks.

Issue 1

August 1998

Page 2-12Incoming Trunks

). There are a variety of

Depending on the trunk type and what the CO can provide, a variety of services is
available, for example, incoming and outgoing WATS (INWATS and OUTWATS).

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

About the System

2

Telephone
Company

Incoming Trunks

MERLIN
LEGEND
Communications
System
Control Unit

555-661-118

Telephone Company
Central Office
(CO)

)
/
L
s

s

T
e

e

A
n

n

i
(

o

L
s

h

e
e

p

n

e

id

l

o

s

e

t

h

T

u

p

)
l

O

le

a

e

t
i

S

T

S

g

L

i

g

L

r

/

D

o

X

lo

(

S

2

L

a

S

1

X

G

n

M

0

L

G

A

8

8

4

M

0

8

8

4

0

4

8

0

0

4

PROCESSOR

P
O

W
E
R

C
A

U
T
I
O

N

O
N

O
F

F

T

u
r
n
o

f

f

p
o

w
e
r

b

i
n

e
s

f

o
e

r
r

e
t
i

n

r

g

e

o

m

r
o
v

i

n

m

g
o
d
u
l

e

s

A
G

I
N
P

U
T

F
R
G
N
D

Loop-Start Trunk
Ground-Start Trunk
Digital Facility

Issue 1

August 1998

Page 2-13Incoming Trunks

Telephones
and Other
Equipment

MERLIN
LEGEND

Applications

Auxiliary
Components

Figure 2–6. Incoming Trunks

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

About the System

2

555-661-118

The types of trunks are:

■ Loop-Start Lines (Incoming and Outgoing Calls). Provide incoming and

outgoing calls and are intended primarily for single-line telephones and
older PBXs. They are the simplest (often the least expensive) and most
common facilities in the nationwide telephone network. Although they are
not appropriate for some situations, they are necessary for others (for
example, some caller identification services).

■ Ground-Start Trunks (Incoming and Outgoing Calls). Provide a signal at

the beginning and end of incoming and outgoing calls to determine the
availability of a trunk before the CO routes an incoming call on it. Also,
when either the caller or the called party hangs up, the entire circuit is
disconnected and dropped. These trunks were introduced to solve the
problems that PBXs encounter on loop-start trunks (namely, glare and
unreliable disconnect), as described in the Introduction booklet.

■ Tie T runks. Private lines that directly connect two communications

systems. Using a tie trunk, a user on one system can call an extension on
another system by dialing an access code and the extension number or
simply the extension number. In Release 6.0 and later systems
(Hybrid/PBX mode only), tandem tie trunks, either analog or T1-emulated,
can be used for networking. In this case, the user dials only the non-local
extension number without an access code. For more information, see the

Network Reference

.

Issue 1

August 1998

Page 2-14Incoming Trunks

In more complex tie trunk configurations, a person can tie into another
system and use a trunk that does not exist on his or her own system. For
example, in a company with locations in New York, Chicago, and Los
Angeles (with tie trunks between New York and Chicago, and Chicago and
Los Angeles), users in New York can access a Los Angeles trunk and
make a local call as if they were in Los Angeles themselves.

■ Direct Inward Dial (DID) Trunks (Incoming Calls Only). Provide fast

access to specific individuals; incoming DID calls can be routed directly to
an extension or calling group without system operator assistance.

■ Digital Facilities. MERLIN LEGEND supports two different types of digital

facilities: Digital Signal 1 (DS1) and, in Release 4.0 and later systems,
National Integrated Services Digital Network 1 Basic Rate Interface
(abbreviated

NI-1 BRI

) facilities. T1, PRI, and BRI are the system’s
interfaces to these Integrated Services Digital Network (ISDN) facilities,
which provide end-to-end digital connectivity and switched connections to
other networks. All three interfaces allow high-speed data transfer.

—National I n te g r at ed Services D ig i ta l N et w ork 1 B a si c R ate Interf ac e

(Incoming and Outgoing Calls). One NI-1 BRI facility carries the
equivalent of three “lines.” Two are called

B-channels

and provide voice
and data communications services. A third D-channel controls signaling
and maintains operations on the B-channels.

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

About the System

2

555-661-118

—Digital Signal 1 Facility Programmed for Either T1 or Primary Rate

Interface Operation (Incoming and Outgoing Calls). One Digital Signal

1 (DS1) facility provides the equivalent of 24 lines, called
Release 4.0 and later systems, the DS1 facility can be programmed to
operate in one of three ways:



T1 Voice Operation. A “line” can be programmed through the
system, without the services of a telephone company installer, to
emulate a ground-start, loop-start, tie, or DID trunk. This type of T1
operation also gives you access to special services, such as inbound
800 or WATS service for incoming, toll-free service for voice calls.
Only this type of T1 operation is available in releases prior to Release

4.0.

NOTES:

1. While you can quickly and easily change the type of line
that a channel imitates, you must coordinate the change
with the T1 provider so that both ends of the connection are
set up for the same type of line/trunk.

August 1998

Page 2-15Incoming Trunks

channels

Issue 1

. In

2. In Release 6.0 and later systems (Hybrid/PBX mode only),
tandem PRI lines can be used for networking. In this case,
you order a T1 facility and program it for PRI operation. For
more information, see the



T1 Data Operation. Available in Release 4.0 and later systems, T1

Network Reference

.

data operation allows high-speed data communications over the
public switched network; this is called

T1 Switched 56 service

. It also
provides data tie “lines” to connect one MERLIN LEGEND
Communications System to another or to a DEFINITY system. A T1
data-operation “line” is a



Primary Rate Interface (PRI) Operation. The 24 “lines” include 23

channel

.

B-channels. Each B-channel can dynamically provide voice and data
services; one D-channel carries signaling information for the
B-channels.

NOTE:

Facility

is a general term that designates a communications path between
a telephone system and the telephone company central office. Specifically,
we refer to digital facilities (sometimes called

). Technically, a

trunk

pipes

connects a switch to a switch, for example, the MERLIN LEGEND

line

Communications System to the central office. Technically, a

is a loop­start facility or a communications path that does not connect switches, for
example, an intercom line or a Centrex line. However, in actual usage, the

line

and

trunk

terms

lines/trunks

use
specific terms such as

are often applied interchangeably. In this guide, we

and

line/trunk

to refer to facilities in general. We also use

personal line, ground-s tart trunk, DID trunk

, and so

on. When you talk to personnel at your local telephone company central

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

About the System

2

555-661-118

office, ask them which terms they use for the specific facilities they connect
to your system.

Modes of Operation 2

The system’s mode of operation determines the following:

■ The types of outside trunks that can be connected to the system

■ How users access outside trunks

■ The types of system operator consoles your business can use

■ The features and applications that your business can use and how they

work

■ How the system is registered with the Federal Communications

Commission (FCC)

The choice of system mode depends on your company’s needs. Your Lucent
Technologies representative and you decide on the system mode when you plan
and purchase the system. Lucent Technologies personnel then set the mode
when they install the system.

Issue 1

August 1998

Page 2-16Modes of Operation

!

CAUTION:

Because the operating mode significantly affects how the system works,
you should know the mode in which your system is configured. You can
either check the planning forms (Form 1, Page 2, System Mode) or contact
your Lucent Technologies representative

.

The system operates in one of three modes:

■ Key Mode. The simplest way to provide people with more than one line

from a telephone. Easy to use. Recommended for smaller systems.

■ Hybrid/PBX Mode. Especially useful where toll fraud/security are a

concern. Provides cost-effective call routing, especially useful for special­purpose network services. Recommended for medium to larger systems.

■ Behind Switch Mode. Used when the system is connected to a system

such as DEFINITY. May be appropriate for users who are part of a large
organization, for example, a department within a company.

While Key mode is appropriate for smaller systems and has the capacity
limitations of any key system, the MERLIN LEGEND Communications System,
unlike other key systems, is flexible and allows you to expand to a PBX system
when your business outgrows Key mode. Table 2–1

outlines the primary
differences among the modes. “Line Buttons on Multiline Telephones” on page

3–25 describes Shared Access (SA) buttons and Intercom (ICOM) buttons.

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

About the System

2

555-661-118

Table 2–1. Modes of Operation

Key Mode Hybrid/PBX Mode Behind Switch Mode

Description Telephones have multiple

buttons (or keys) labeled
with telephone numbers.
Every button corresponds
directly to an outside line.
Different buttons (ICOM
buttons) are used for
inside calls.

Types of Trunks Ground-start

Loop-start
Tie
DS1 (T1 only)
BRI

Number of
Extensions:

Fewer than 50
More than 50

Types of Buttons A line button for each

User Access to
Outside
Lines/Trunks

Types of Operator
Console(s)

Recommended
Use

Good
Not recommended

outside line.
Up to 10 ICOM buttons for

inside calls.

Choosing a specific line
button

DLCs only DLC, QCC, or a

Smaller systems (fewer
than 50 extensions)

Outside trunks are
grouped in pools for
shared use; the system
automatically selects an
available outside trunk.
People use the same
button to make both
inside and outside calls.

Ground-start
Loop-start
Tie
DS1 (PRI and T1)
DID
BRI
Private network trunks

(Release 6.0 and later)

Good
Good
Up to 10 SA buttons.

Pool button to access a
specific pool. (Optional) A
personal line button for
dedicated use of a
specific outside trunk.

Dialing a code (usually
from an SA button

combination of both
Medium to larger systems
(more than 50 extensions)

August 1998

Used when the system
(called the local system ) is
connected to a larger PBX
or Centrex system (called
the host system). One
outside line (a prime line)
is assigned to each
telephone. The host
system provides the
interface to outside lines
and some features.
Ground-start
Loop-start
Tie

Good
Good up to 80
For multiline phones:

Multiple prime line bu ttons.
Up to 10 ICOM buttons.



)

Dialing the host system’s
dial-out code (usually
from a prim e line butto n
DLCs only

For users who are part of a
large organization, for
example, a department
within a company or
companies whic h
subscribe to Centrex
services for most features

Page 2-17Modes of Operation

Issue 1



)

Continued on next page

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

About the System

2

555-661-118

Table 2–1. Continued

Key Mode Hybrid/PBX Mode Behind Switch Mode

Comments All users need multiline

phones.
Line assignments can be

customized by phone or
groups of phones. For
example, you can assign
tie trunks only to the
telephones where they
are needed.

Provides the most efficie nt
use of outside trunks. The
Automatic Route
Selection (ARS) feature
can be programmed for
the cost-effective use of
pools and the greatest
protection against toll
fraud. Provides greater
functionality for single-line
phones than other modes.
Fewer line buttons
required for users.

Components 2

Issue 1

August 1998

Page 2-18Components

Users can have access to
most features of both th e
local system and the host
system. Single-line p hones
can be used.

The system includes the following components:

■ Control Unit. The circuitry that manages the switching activities of the

telephone company’s trunks and your system. It consists of

modules

which

processor module

(circuit packs) are inserted. The module types include a

(the “brain” of the system), a power supply module, and

carriers

into

a variety of line/trunk or extension modules with jacks for connecting the
incoming trunks and the extension lines. The following section explains
line/trunk and extension modules in more detail.

A plastic cabinet (the cover) protects the control unit.

■ Telephones. Single-line, cordless, cordless/wireless, and analog multiline

telephones, as well as digital MLX telephones that offer a variety of
features and advanced capabilities. Most MLX telephones have displays
that show call information, list features for using the telephone, and provide
menu-driven programming instructions. MLX telephones include the
following: MLX-5, MLX-5D, MLX-10, MLX-10D, MLX-10DP, MLX-16DP,
MLX-20L, and MLX-28D.

■ System Operator Consoles. Telephones programmed to handle a variety

of operator functions. Types of consoles include:
—Analog or MLX Direct-Line Console (DLC) . Outside lin es are assign ed

to individual buttons, and the console can have several calls ringing at
the same time. Only certain MLX telephones and analog multiline
telephones can be used as DLCs.

—MLX Queued Call Console (QCC). Available only in Hybrid/PBX mode.

Incoming calls wait in a queue for the operator and reach the QCC on a
first-in, first-out basis, according to the call priority level assigned
through system programming. Only one call rings at a time.

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

About the System

2

555-661-118

The MLX-20L telephone is the only telephone that can be assigned
through system programming to function as a QCC. The buttons on the
QCC are factory-set with fixed features.

The type of console used depends on the company’s needs and the
system’s mode of operation, as described earlier in this chapter.

NOTE:

One or two Direct Station Selector (DSS) adjuncts can be added to
an MLX console to provide 150 or 300 additional extension buttons.
The analog System Display Console has 40 built-in DSS buttons and
provides access to three pages of extensions, for a total of 120.

■ Auxiliary Components. Adapters for connecting extra equipment and the

adjuncts that add features to the system or extensions. Some adjuncts are:
loudspeaker paging systems, headsets, fax machines, and modems. Other
add-on components are optional accessories, for example, surge
protectors that protect the equipment from lightning and power surges.

Issue 1

August 1998

Page 2-19Components

Figure 2–7

illustrates some of the components of the system. “Auxiliary

Components” on page 2–27 and Chapter 3, “System Components,” include

additional information. For more information or to order any of the components,
contact your Lucent Technologies representative.

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

About the System

2

elephone

ompany

MERLIN
LEGEND
Communications
System
Control Unit

555-661-118

Telephone Company
Central Office
(CO)

Incoming Trunks

)
/
L

s

s
T

e

e
A

n

n
i
(

o

L
s

h

e
e

p

n
d

e

i

l

o
s

e

t
h

T

u
p

)
l

e
O
l

a

e

t
i

S
T

S

g

L

i

g

L

r

/

D

o
o

X

l

(

S

2

L

a
S

1

X

G

n

M

0

L

G
A

8

8

4

M

0

8

8

4

0

4

8

0

0

4

PROCESSOR

P
O
W

E
R

C
A
U

T
I
O
N

O
N

O
F
F

T
u
r

n
o
f

f
p
o
w

e

r

b
i
n

e

s

f
o

e

r

r

e
t
i
n

r

g

e

o

m

r
o
v
i
n

m

g

o

d
u
l
e
s

AG INPUT

F
R
G

N
D

Issue 1

August 1998

Page 2-20Components

LAN

Telephony

Server

ERLIN

EGEND

Telephones
and Other
Equipment

Applications

Auxiliary
Components

MLX

Telephone

Fax

Machine

MLX

Telephone

with MFM

Single-

Line

Phone

Answering

Machine

Analog

Multiline

Telephone

Your LAN

Figure 2–7. System Components

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

About the System

2

555-661-118

Line/Trunk and Extension Modules 2

The line/trunk and extension modules inserted into the control unit have jacks for
connecting CO trunks and system telephone wires to the control unit.

A system with a basic carrier has five slots for modules. Up to two expansion
carriers can be added, each one providing six slots for modules.

The system supports 17 different types of modules that vary in the types of
lines/trunks that they support and the types of telephones or other equipment that
can be connected to them.

The names of the modules identify their capacities and capabilities. The first digit
tells you the number of line/trunk jacks a module supports, while the last two digits
describe the number of extension jacks it supports. Following the number may be
letters that indicate the type of trunk it supports, that is,

ground-start

for
the module supports loop-start trunks. For example, the 408 GS/LS MLX module
provides four line/trunk jacks and eight MLX extension jacks, and supports
ground-start and loop-star t trunks (see Figure 2–8

; if the number indicates line/trunk support and no letters follow,

Issue 1

August 1998

Page 2-21Components

LS

for

loop-start

and GS

).

8 Analog Telephones (ATL)

408 GS/LS

4 GS or LS Outside Lines/

408

GS/LS-MLX

PFT Jack

Line/Trunk
Jacks

Digital (MLX)
Extension
Jacks

Figure 2–8. 408 GS/LS-MLX Module

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

About the System

2

555-661-118

Features 2

The versatility and power of the system are due, in large part, to the variety of
feature settings and services it can provide.

Features include traditional items (Transfer and Call Waiting), as well as
advanced features (Coverage and Park).

Some functions can be performed in several ways. For example, the system
offers a variety of ways to provide call coverage. You therefore choose and set up
features according to your specific business needs.

Chapter 4, “Features and Applications,” provides additional information about
features. The

Feature Reference

provides detailed information, including

interactions of features.

Applications 2

Issue 1

August 1998

Page 2-22Features

Numerous add-on products (

applications

) are available to enhance the system.
Chapter 4, “Features and Applications,” includes an overview of available
applications. Of course, the documentation provided with the product is the most
authoritative. Once you have reviewed this material and found an application that
seems to fit your nee ds, con tact you r Lu cen t Technolog ies repr es ent ati ve to orde r
the product or discuss it further.

Businesses can purchase some applications separately; others are integrated to
have a common interface. Most have settings that you can easily customize to
suit your company’s needs. Some require additional hardware.

In addition, the system provides support for special services, such as Centrex,
Basic Rate Interface (BRI), and Primary Rate Interface (PRI).

Figure 2–9 on page 2–25

■ Voice messaging systems answer incoming calls, provide callers with a

illustrates some of these applications, which include:

menu of choices, such as people or departments, and then transfer the call
as prompted by the caller using a touch-tone phone. Voice messaging
systems may or may not include voice mail services, described below.

■ Voice mail services enable system users, for example, to send voice

messages to other users, forward voice messages with comments, and
return a call.

■ Fax messaging services automate the sending, receiving, call-handling,

and storage of faxes, in much the same way voice messaging systems
handle voice messag in g.

■ Call accounting applications manage telephone usage by tracking and

sorting telephone costs and producing reports on costs.

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

About the System

2

■ A call management application answers and distributes calls to members

555-661-118

of a specified group, for example, ticketing agents.

Issue 1

August 1998

Page 2-23Applications

■ PassageWay Direct Connection Solution provides an interface between an

extension and a PC with Microsoft

®

Windows®, as well as providing utilities
and allowing the integration of Windows applications with telephone
activities.

■ Group and desktop videoconferencing and data exchange applications

allow multimedia interaction among people who work together but are
geographically distant.

■ In Release 5.0 and later systems, a bridge to PC applications is available:

the Computer Telephony Integration (CTI) link or

CTI link

(part of the
PassageWay Telephony Services product from Lucent Technologies) for
local area networks (LANs). The connection is made through a
programmed MLX exten sio n ja ck. The link all ows call s on SA buttons to be
monitored and controlled from workstations connected on a LAN to a
server running Novell NetWare software. The link supports applications
such as power dialing for telemarketing salespeople and pop-up database

information about a caller. (Screen-pop applications that use the caller’s
telephone numbers must be combined with Caller ID services through PRI,
NI-1 BRI, or a local service provider via the system’s 800 GS/LS ID
module.)

The CTI link hardware/software feature is supported in Novell NetWare and
Windows NT local area networks (LANs) for LAN applications on Windows

3.1, Windows 95, Windows for Workgroups 3.11, Windows NT, Apple

Macintosh

“Computer Telephony Integration Link” on page 5–23

®

OS, and UNIX® System clients. For more information, see

or consult your

®

Lucent Te chn ologi es repres ent ati ve.

NOTE:

A CTI link is not compatible with all Macintosh OS and UNIX System
clients, which must support private data in order to function with the
feature. For additional information, consult the

PassageWay

Telephony Services Network Manager’s Guide.

■ Beginning in Release 6.1, one or more MERLIN LEGEND systems can

share the voice messaging system (VMS) of another MERLIN LEGEND
system provided the following conditions are met:

—All systems must be Release 6.1 or later .
—The systems must be directly connected via an analog or digital tie trunk

or via a Primary Rate Interface (PRI) tandem trunk. No other systems
can be in between.

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

About the System

2

555-661-118

The sharing of the voice messaging system within a private network is
called "Centralized Voice Messaging" and is supported by creating a calling
group on the MERLIN LEGEND system without the VMS that routes calls
to the VMS. Centralized Voice Messaging is supported only with the
following voice messag ing systems:

—MERLIN LEGEND Mail
—Messaging 2000
—Intuity AUDIX and Fax Messaging
—IS III AUDIX Voice Power (ISIII AUDIX Voice Power is no longer

available from Lucent Technologies.)

Issue 1

August 1998

Page 2-24Applications

See the

Network Reference

Messaging.

for more information about Centralized Voice

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

About the System

2

Telephone
Company

MERLIN
LEGEND
Communications
System
Control Unit

555-661-118

Telephone Company
Central Office
(CO)

Incoming Trunks

)

/

L

s

s

T

e

e

A

n

in

(

o

L

s

h

e

e

p

n

e

id

l

o

s

e

t

h

T

u

p

)
l

O

le

a

e

t
i

S

T

S

g

L

i

g
r
/L

D

o

X

lo

(

S

2

L

a
S

1

X

G

n

M

0

L

G

A
8

8

4

M

0

8

8

4

0

4

8

0

0

4

PROCESSOR

P

O
W

E
R

C
A
U

T
I
O
N

O

N

O
F
F

T
u
r
n

o
f

f
p
o
w

e

r

b
i
n

e
s

f

o
e

r

r

e
t
i
n

r

g

e

o

m

r
o
v
i
n

m

g

o
d

u
l
e
s

AG INPUT

F

R

G

N
D

Issue 1

August 1998

Page 2-25Applications

LAN

Telephony

Server

Telephones
and Other
Equipment

MERLIN
LEGEND

Telephone

Applications

PassageWay

Direct Connection

Solution

Auxiliary
Components

Figure 2–9. Applications

MLX

Call

Accounting

System

Fax

Machine

MLX

Telephone

with MFM

Single-

Line

Phone

Answering

Machine

Messaging

System

Telephone

Voice

Analog

Multiline

Your LAN

CTI Link

Application

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

About the System

2

555-661-118

Programming the System 2

System installation includes the programming of features, settings, and options
selected by you or a representative from your company.

Depending on the feature, either you, as system manager, or a person at his or
her extension can make changes to features:

■ System Programming . Used to program systemwide or group features. A

Lucent T echnologies technician can also do system programming. You use
one of the following:

Issue 1

August 1998

Page 2-26Programming the System

—An MLX-20L telephone, referred to as the
—A PC with System Programming and Maintenance (SPM) software,

connected to the system in one of three ways: a direct connection
between the PC and the system’s control unit, an onsite or
connection to the modem in the control unit, or an offsite
connection.

■ Extension Programming. Can be performed in two ways:

—Centralized Telephone Programming. You program at the

programming console.

—T elephone Programming. Either you or the user programs at a specific

telephone.

When programming from an MLX-20L telephone or a PC, you work with menus of
features and options. You simply select an item from the menu and enter settings
as desired.

System Capacities 2

The system can support up to 80 line/trunk jacks, 72 of which can be B-channels
supplied on 100D modules or 800 NI-BRI modules (Release 4.0 and later
systems).

programming console

local

remote

modem

modem

The maximum number of extensions depends on the type of equipment included
in the system. In theory, you can connect as many as 255 extensions, but this, in
fact, is not practical. In Release 4.0 and later systems, a higher-capacity tip/ring
(T/R) extension module, the 016, allows the system to support as many as 200
T/R devices such as single-line telephones, modems, and fax machines. The
number of extensions you can connect depends on the equipment you use in your
system.

Appendix C describes hardware and software capacities, that is, the minimums
and maximums for certain features.

If you have any questions about your system’s capacity, contact your Lucent
Techn olo gie s re pres enta t ive.

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

About the System

2

555-661-118

Auxiliary Components 2

Many other components are available for use with the system, including adapters,
adjuncts, and accessories. You probably have many of these in your system

already. If you’re interested in adding any of these components to your system,
contact your Lucent Technologies representative.

The following is a list of the types of auxiliary system components, including some
examples of each:

■ Adjuncts. Auxiliary equipment that adds features to the system, for

example, a fax machine or modem. There are three types of adjuncts:
—System Adjuncts. Connect directly to the control unit, for example, a

Station Message Detail Recording Printer (SMDR) to print call records, a
PC with System Programming and Maintenance (SPM) software to be
used for the programming and maintenance of the system, loudspeaker
paging systems, and Magic on Hold

callers on hold.

—Telephone Adjuncts. Connect to telephones. For example, Direct

Station Selectors (DSSs) can enhance the capabilities of operator and
programming consoles, as well as a variety of headsets,
speakerphones, and specialty handsets (for users who are hard of
hearing or in noisy environments).

Issue 1

August 1998

Page 2-27Auxiliary Components

®

to provide background music for

—Other Adjuncts. Connect directly to the control unit but are not

necessarily used systemwide, for example, a fax machine at its own
extension. (Many adjuncts, such as fax machines and modems, can
either connect directly to the control unit from their own extensions, or
they can connect to a telephone at an extension.)

■ Adapters. Enable the connection of other equipment or certain telephone

company facilities. There are two kinds of adapters, classified according to
function:

—System Adapters. Connect adjuncts (for example, a loudspeaker

paging system) directly to the control unit and serve the whole system.

—Telephone Adapters. Connect adjuncts to telephones. For example, a

Multi-Function Module (MFM) connects an adjunct, such as an
answering machine, modem, fax machine, or special strobe, to an MLX
telephone.

■ Accessories. Different kinds of accessories can be added to the system to

provide more power or additional protection from power surges. There are
three types of accessories:

—Power Accessories. For example, an Uninterruptible Power Supply

(UPS) for the system or telephone powe r units to pro vide addi ti ona l
power to individual telephones that require them for adjuncts.

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

About the System

2

555-661-118

—Protection Accessories. For example, for grounding and protec ting

special telephone connections (like a telephone located in a different
building) from lightning strikes and power surges.

—Miscellaneous Accessories. Include a power-failure transfer (PFT)

telephone used to make and receive calls in the event of a commercial
power failure or an Off-Premises Range Extender (OPRE) used for a
single-line telephone located in a different building from the control unit
and more than 1000 feet away.

Issue 1

August 1998

Page 2-28Auxiliary Components

Figure 2–10

illustrates some of these components. For information about these

accessories, see Chapter 3, “System Components,” and the

Operations Reference

(not updated since Release 3.0).

Equipment and

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

About the System

2

Telephone
Company

MERLIN
LEGEND
Communications
System
Control Unit

555-661-118

Telephone Company
Central Office
(CO)

Incoming Trunks

)
/
L

s

s
T

e

e
A

n

n
i
(

o

L
s

h

e
e

p

n
d

e

i

l

o
s

e

t
h

T

u
p

)
l

e
O
l

a

e

t
i

S
T

S

g

L

i

g

L

r

/

D

o
o

X

l

(

S

2

L

a
S

1

X

G

n

M

0

L

G
A

8

8

4

M

0

8

8

4

0

4

8

0

0

4

PROCESSOR

P
O
W
E

R

C
A
U

T
IO
N

O

N

O

F

F

T
u
r

n
o
f

f
p
o
w

e

r

b
i
n

e

s

f
o

e

r

rt

e

in
r

g
e

o

m

r
o
v
i
n

m

g

o

d
u
le

s

A
G
I

N
P
U

T

F
R
G

N
D

Issue 1

August 1998

Page 2-29Auxiliary Components

LAN

Telephony

Server

Your LAN

Telephones
and Other
Equipment

MERLIN
LEGEND

MLX

Telephone

Fax

Machine

Applications

PassageWay

Direct Connection

Solution

Call

Accounting

System

Auxiliary
Components

O

H

L

D

Music-on-Hold

or

Magic-on-Hold

Headset

E

X
P

R
E
S
S

R

O
U
T

E

D
i
g

i
t
a
l
A
d
a
p
t

e
r
1
0
0
0

D
a
t

a

Computer

and ISDN

Terminal

Adapter

Building A

Figure 2–10. Auxiliary System Components

MLX

Telephone

with MFM

Bell, Chime,

Strobe, etc.

Single-

Line

Phone

Uninterruptible

Power

Supply

Answering

Machine

“Attention”

Paging
System

Multiline

Telephone

Voice

Messaging

System

Analog

CTI Link

Application

P
O
W

E

O

R

U
T

6
5
7

G

E

R

O
U
N
D

I
N

6
5
7
E

OPRE

Single-

Line Phone

Building B

G
A
I
N

O
N

1
2
3
4

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

About the System

2

555-661-118

Data Communications Capabilities 2

One of the important capabilities of the system is to carry both voice and data
communications simultaneously over the same lines. In addition, system features
used for voice communications, such as Automatic Route Selection, calling
restrictions, and speed dialing, can also enhance the use of data equipment.

NOTE:

For the most up-to-date information about data and video communications,
consult the

Data/Video Reference

Thus, the system allows you to use telephone lines for communicating not only
voice but data and video too. For example, a computer in New York can send data
files to a computer in San Diego. At your own company, your PC can
communicate with a gateway computer on a local area network (LAN) and gain
access to the network; or you can call your office computer from your home
computer and send files back and forth.

.

Issue 1

August 1998

Page 2-30Data Communications Capabilities

In addition, the system supports advanced network services that integrate voice
and data, such as group and personal videoconferencing.

A special type of extension, called a

data workstation

, is used for data
communications. It may include a telephone and always includes two types of
equipment:

■ Data Terminal Equipment (DTE). For example, a PC, data terminal,

printer, optical scanner, or video system.

■ Data Communications Equipment (DCE). For example, an internal or

external modem or an external Ascend Pipeline™ 75 ISDN terminal
adapter.

The DTE connects to the system via the DCE, which has capabilities similar to a
telephone. The DCE places the data call, maintains the connection, and
terminates the call.

Sometimes a telephone is also part of a data workstation. The telephone can be
either an MLX or an analog multiline telephone that operates independently of the
DCE. You can attach a modem to either an analog or MLX telephone adapter.

video workstation

A

is a type of data workstation that allows group or desktop

videoconferencing.
For high-speed data communications over Integrated Services Digital Network

(ISDN) Basic Rate Interface (NI-1 BRI, Release 4.0 and later) or Digital Signal 1
(DS1) Primary Rate Interface (PRI) or T1 Switched 56 (Release 4.0 and later)
facilities, you can attach an ExpressRoute 1000 ISDN Terminal Adapter or
another ISDN communications device to an MLX extension. Group
videoconferencing may require ExpressRoute 1000s, or an ISDN terminal adapter

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

About the System

2

555-661-118

compatible with them, which may be provided with the videoconferencing
application. A modem or other communications device can operate (with its data
terminal, of course) from its own extension, with no telephone at the extension.

Desktop videoconfer encin g, d ata trans fer, and screen-sharing app li cat ion s work
with Release 4.0 and later systems. They use any combination of PRI, NI-1 BRI,
and T1 Switched 56 data lines/trunks. Such systems can stand alone, and some
may also have an MLX telephone attached. Desktop videoconferencing systems
can use one MLX B-channel (for minimal video quality) or two B-channels (for
better video quality). If the system uses both MLX B-channels, you cannot use the
telephone connected to the same MLX port as the videoconferencing application
while the desktop videoconferencing system is making or receiving calls. The use
of two B-channels is called

2B data

.

Issue 1

August 1998

Page 2-31Data Communications Capabilities

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

About the System

2

555-661-118

Issue 1

August 1998

Page 2-32Data Communications Capabilities

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

System Components

3

555-661-118

System Components 3

This chapter describes the system’s basic hardware. It includes descriptions of
the control unit, MLX telephones, analog multiline telephones, single-line
telephones, system operator consoles, adjuncts and adapters for the system and
telephones, and power-related accessories.

Issue 1

August 1998

Page 3-1Control Unit

3

Control Unit 3

The control unit connects the telephone company’s outside trunks to the system’s
telephones and adjuncts. It is the heart of the system, managing the traffic within
the system (inside calls) and making telephone company facilities and outside
services available to your company. It includes the following components:

■ Carriers (up to three)

■ Processor module (one per system)

■ Power supply module (one per carrier)

■ Line/trunk and extension modules (up to 17 total in three carriers)

■ Cover that protects the unit

Carriers 3

The carriers in the system are the containers that hold the modules on which the
circuit boards and connections for lines/trunks and extensions (called

ports

) are located. There can be up to three carriers: one

expansion carriers.

The carriers hold the modules in slots. For the purposes of system programming
and installation, 2-digit numbers indicate the slots, starting with 00 for the
processor module.

basic carrier

jacks

or

and two

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

System Components

3

555-661-118

Issue 1

August 1998

Page 3-2Control Unit

Inside the back of each carrier is a component called the

the circuitry that makes it possible for the modules to “talk” to each other and for
the processor module to handle the traffic among the modules.

Every system has a

■ Power supply module (not numbered)

■ Processor module (slot 00)

■ Up to five line/trunk and extension modules (slots 01–05)

basic carrier

that holds the following modules in its slots:

If you need more trunks and/or extensions than can fit in the basic carrier, you can
connect up to two

expansion carriers

to the basic carrier. Like the basic carrier,
each expansion carrier’s leftmost slot holds a power supply module; the remaining
six slots hold line/trunk and extension modules. (The processor module in the
basic carrier serves the expansion carriers too.) The six slots for line/trunk and
extension modules in the expansion carriers are numbered as follows:

■ First expansion carrier (slots 06−11)

■ Second expansion carrier (slots 12−17)

Processor Module 3

The processor module is the “brains” of the system, a miniature computer that
controls system features and diagnostics, as well as the traffic among the
modules (see Figur e 3–1
Station Message Detail Recording (labeled
and maintenance using a PC (labeled
by Lucent Technologies technicians only (this one is plugged shut)

). The processor module provides three jacks, one for

SMDR

ADMIN

backplane

, which holds

), one for system programming

), and one for software maintenance

.

The Personal Computer Memory Card International Association (PCMCIA)
interface slot on the processor module is where you insert a PCMCIA memory
card. A memory card is very similar to a floppy disk used in a PC, but it is about
the size of a credit card. There are different types of memory cards used with the
system, each with a different label. (See the next section for more information.)

The processor module has a single-character display for the numbers and
symbols that help Lucent Technologies technicians to understand any problems
with the system software and to maintain the system. The module also has a red
light that indicates hardware failures.

A super capacitor in the processor module provides backup power for the
system’s clock and its memory in case of power failure or system shutdown. The
super capacitor retains data for four to five days.

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

System Components

3

555-661-118

Processor

Module Label

Error/Status Code Display

PCMCIA
Interface Slot

Debugging Port (plugged to prevent access)
Alarm Status Light
SMDR Port

ADMIN Port

Issue 1

August 1998

Page 3-3Control Unit

Figure 3–1. Processor Module

PCMCIA Memory Card 3

The processor includes 4 MB of on-board memory that can be erased and
overwritten many times. A PCMCIA memory card can be used to install or
upgrade the system software into this memory. A memory card can also be used
to back up and restore system programming.

There are different types of memory cards, each about the size of a credit card.
Their labels indicate contents and function. Described below are three types of
PCMCIA memory cards that you may encounter. For more information, see

System Programming

■ Feature Upgrade Memory Card. Orange label with black bars; entitled

Forced Installation

■ Maintenance Upgrade Memory Card. Orange label; entitled

To fix problems in the system.

Card.

■ Translation Memory Card. White label; entitled

up and restore your system programming as an alternative to using System
Programming and Maintenance (SPM). These procedures run faster when
you use the PCMCIA card.

or contact your Lucent Technologies representative.

. To upgrade your system to the latest release.

Upgrade

T ranslation Card

. To back

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

System Components

3

555-661-118

Power Supply Module 3

The power supply module (Figure 3–2) provides power to the carrier, to each

telephone, and to most adjuncts. (Some adjuncts, such as fax machines, come
with their own power supplies and do not rely on the system.) Each carrier
requires its own power supply module, installed in the carrier’s leftmost slot. The
current power supply module is the 391C1; it works with all releases of the
system.

In some systems, you need extra power supplies to support your system
components as described in “Power-Related Hardware” on page 3–46

Issue 1

August 1998

Page 3-4Control Unit

.

TEST PORTS

1

2

3

BATTERY BACK UP

CAUTION

TURN OFF SWITCH THEN REMOVE
POWER CORD BEFORE INSERTING OR
REMOVING UNIT.

ATTENTION

ETEIGNEZ L'APPAREIL ET D´EBRANCHEZ
LA PRISE AVANT D'INTRODUIRE OU DE
RETIRER DES MODULES.

PRECAUCION

APAGUE EL INTERRUPTOR DESPUES
REMUEVA EL CABLE ELECTRICO
INSERTANDO O REMOVIENDO LA
UNIDAD

VORSICHT

ZUERST ABSCHALTEN, DANN DAS
STROMKABEL ENTFERNEN, EHE DAS
GERAT EINGESETZT ODER ENTFERNT
WIRD.

POWER

ON/OFF

+5V

-5V

-48V

AC INPUT

Power Indicator (Green Light)

On/Off Switch
Power Connection
Grounding Screw

Figure 3–2. Power Supply Module

Line/Trunk and Extension Modules 3

Line/trunk and extension modules have jacks for connecting telephone company
lines/trunks and extension wires to the control unit. The system supports 17 types
of line/trunk and extension modules. For maximum flexibility, some modules
support only lines/trunks, some only extensions, and some a combination of the
two.

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

System Components

3

555-661-118

Each module has a label that contains its name. As noted in Chapter 2, “About the
System,” the names of the modules identify their capacities and capabilities. The
first digit indicates the number of line/trunk jacks a module supports, while the last
two digits describe the number of extension jacks it supports. Following the
number may be letters that indicate the type of trunk or trunks it supports; for
example, LS for

loop-start

and GS for

ground-st art

no letter following it supports loop-start trunks. The following are examples of
module names:

■ The 408 GS/LS MLX module provides four trunk jacks supporting

ground-start and/or loop-start trunks, and eight MLX extension jacks.

■ The 016 (T/R) module (Release 4.0 and later only) provides 16 extension

jacks that, in this case, supply tip/ring (T/R) connections for single-line
telephones, modems, voice messaging systems, and other components.

The balance of this section presents some specific information about the modules
that connect extensions and the mod ule s that co nnec t lines /tr unks . Figure 3–3
and Table 3–1

present summary information.

Issue 1

August 1998

Page 3-5Control Unit

. A line/trunk module name with

Modules Supporting Extensions 3

Table 3–1 describes the type of equipment that each module supports. This

section highlights some important points about extension modules.

NOTE:

Extension jacks connect to individual telephones and to adjuncts that are
attached to extensions. Some adjuncts and applications serve the whole
system and connect directly to line/trunk jacks.

Extension Jacks 3

While the jacks that support MLX extensions and the jacks that support analog
extensions may look the same, there is a major difference: an MLX extension jack
actually supports two extension numbers at each location served by the jack.

When you use an adapter called a Multi-Function Module in an MLX telephone,
you can connect a T/R device (for example, a modem, fax machine, or answering
machine) to that telephone. Even though a single extension jack on the module
serves both the phone and the T/R device, each device has its own extension
number and operates independently. In contrast, if you want to use both an
analog multiline telephone and a modem (or other adjunct) at the same location in
the system and give each one its own extension number, you must use
physical extension jacks on the module.

two

The Voice Announce to Busy feature, which allows a telephone user to hear a

voice page

(also called a

voice-announced call

) while on another call, has the
same requirements as an adjunct that operates independently from the phone:
one extension jack (and no adjunct) for an MLX phone; two extension jacks for an

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

System Components

3

555-661-118

analog multiline telephone. Single-line telephones and analog cordless or
wireless telephones cannot receive voice pages.

NOTE:

There is a distinction between an extension jack (sometimes referred to as

logical ID

a

or

port

) and an extension number. In system programming, you
sometimes need to use port/jack/logical ID numbers, rather than extension
numbers or system line/trunk numbers. Port/jack/logical IDs are numbered,
starting at 1, from the bottom of a module, and are fixed: they cannot be
changed. The extension and line/trunk numbers that people in the system
dial are flexible and can be programmed

Touch-Tone Receivers 3

In addition to jacks for connecting lines/trunks and extensions, various modules
also include components called
the system to process touch tones entered by outside callers for special purposes,
such as for automated attendants that answer calls from people with touch-tone
phones, voice mail systems, and remote access callers who call into the system
and use its services. When your Lucent Technologies representative helps plan
your system, he or she makes sure that your modules have enough touch-tone
receivers to support your needs. When you add an application or adjunct to your
system, you sometimes have to make more TTRs available as well, for example,
for tie trunks connecting private-networked systems (Release 6.0 and later
systems, Hybrid/PBX mode)
your Lucent Technologies representative for information about additional TTRs
that may be required.

touch-tone receiver s (TTRs

.

When you make a change to your system, consult

Issue 1

August 1998

Page 3-6Control Unit

.

). These TTRs allow

016 (T/R), 012, and 008 OPT Modules 3

Extension modules that support single-line telephones or off-premises telephones
(OPTs) must have ring generators so that the telephones get electrical current for
their ringers. All 016 (T/R) extension modules, which are compatible only with
Release 4.0 and later systems, include built-in ring generators. Since late 1993,
012 and 008 modules have come with ring generators built in. Earlier modules
required Lucent Technologies technicians to install ring generators. If your 008 or
012 module has a ring generator, either added or built-in, you should see a label
on the front of the module telling you that the ring generator is included.

Also, 016 (T/R), 012, and 008 modules allow the connection of T/R devices
directly to the control unit, without the need for a telephone and adapter at an
extension. You can use them to hook up fax machines or PCs with modems, for
example. For more information, see “Adjuncts” on page 3–36

NOTE:

The MERLIN LEGEND Mail

®

Voice Messaging System integrates a T/R
module (007 MLM) with a voice messaging system and is both a module
and an application.

.

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

System Components

3

555-661-118

Modules Supporting Lines/Trunks 3

Table 3–1 summa riz es the module s that su ppor t li nes/tr unk s . This sect ion

describes a few module features and modules that need additional explanation.

NOTE:

Modes of operation affect features and hardware. For example, Direct
Inward Dial (DID) is supported only in Hybrid/PBX mode, so if your system
uses a different mode of operation, you do not need a DID module. For
more information about modes, see Chapter 2, “About the System.”

Power-Failure Transfer Telephones 3

When your system was planned, the Lucent T echnologies representative(s) made
sure that you had a module to support one or more power-failure transfer (PFT)
telephones. These telephones, each of which is connected to a special line/trunk
jack, allow you to make and receive calls during a commercial power failure. They
do not affect the capacity of the modules.

Issue 1

August 1998

Page 3-7Control Unit

100D Module 3

The 100D module has only one line/trunk (called a
facility) but actually supports 23 or 24 “virtual” lines/trunks. These are called

channels

or

B-channels

, depending upon the type of service you choose. As
described in Chapter 2, “About the System,” you can program the DS1 facility to
provide either T1 or Primary Rate Interface (PRI) service on the 100D module.

NOTE:

The 100D module is not available in Behind Switch mode.

In addition, PRI and T1 support Group IV (G4) fax machines, as well as desktop
and group videoconferencing.

PRI and T1 differ in some important ways:

■ Primary Rate Interface (PRI). PRI supports Integrated Services Access,

also called

Service Select ion

Shared Access for Switched Services (SASS)

. This feature, available from various telecommunications
companies, allows multiple PRI services to use the same facilities,
eliminating the need to have dedicated, separate incoming and outgoing
B-channel groups. It selects the optimal service for each outgoing call,
allowing more than one service over each B-channel, including digital data
communications at speeds up to 64 kilobits per second.

Digital Signal Level 1

and

Call-by-Call

or

DS1

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

System Components

3

555-661-118

NOTES:

1. In releases prior to 4.2, only AT&T services for Lucent
Technologies generic 4ESS, Lucent Technologies 5ESS, and

other providers’ emulations of these services are supported.
Release 4.2 and later systems support services on NORTEL
DMS-100 generic BCS 36 serving local exchange carriers,
NORTEL DMS-250 generic MCI07 serving the MCI network, and
Digital Switch Corporation DEX 600E generic 500-39.30 serving
the MCI network.

2. For the DMS-100 or DMS-250 switch type, you must give special
instructions to the service provider to use variant NTNAPRI
(Northern Telecom North America Primary Rate Interface)
instead of the AT&T protocol. For the DEX600E switch type,
instruct the service provider to use the profile p250. For
additional information, refer to
Lucent Technologies representative.

System Planning

Issue 1

August 1998

Page 3-8Control Unit

or contact your

PRI supports

routing by dial plan

for DID-like call-handling. This is
especially appropriate for Caller ID services such as AT&T’s Station
Identification/Automatic Number Identification or the AT&T and MCI Dialed
Number Identification Service (DNIS) when your company subscribes.
DNIS routes incoming 800 or 900 calls according to customer-selected
parameters, such as area code, state, or time of call. For example, a
customer can specify that calls received from a particular area code be
routed to a specific individual or group responsible for accounts in the area.

The system’s PRI platform allows you to choose any combination of the
telecommunications company services listed below (your company must
subscribe to these).

—MCI Services (Release 4.2 and later systems only). Domestic outgoing

long-distance and international voice calls, domestic incoming toll-free
800 voice calls, 900 service numbers, and private network voice calls,
as well as 56- and 64-kbps restricted and unrestricted circuit-switched
data calls.

—Local DMS-100 Services (Release 4.2 and later systems only).

Available from local carriers: private network or tie trunk service for calls
between the MERLIN LEGEND Communications System and another
communications system (such as another MERLIN LEGEND
Communications System), outbound WATS for domestic outgoing long­distance calls, inbound WA TS for domestic toll-free incoming voice calls,
and foreign exchange serv ic e.

—AT&T Services. Domestic outgoing long-distance and voice calls,

56-and 64-kbps circuit-switched data calls with routing by dial plan, 900
service numbers, outbound WATS for domestic outgoing long-distance
calls, and domestic toll-free incoming voice calls.

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

System Components

3

■ T1 Service. This service is cost-effective and convenient for many

555-661-118

businesses. Prior to Release 4.0, it provided voice operation only. In
Release 4.0 and later systems, T1 service provides voice operation or
high-speed data operation. A T1 channel must be programmed for either
voice or data operation and cannot be used for both.

NOTE:

In Release 6.0 and later systems (Hybrid/PBX mode only), tandem
PRI lines can be used for networking. In this case, you order a T1
facility and program it for PRI operation. For more information, see

Network Reference

the

.

—Voice Operation. T1 voice channels can be configured to emulate

different types of trunks for voice (analog) use, according to business
needs. T1 can emulate loop-start, ground-start, Direct Inward Dial (DID,
Hybrid/PBX mode only), and tie trunks. In some areas, T1 service is less
expensive than leasing the equivalent number of standard telephone
company trunks. T1 also allows access to network subscriber options
such as toll-free domestic long-distance services.

Issue 1

August 1998

Page 3-9Control Unit

You can connect the system’s control unit to another system’s control
unit using an emulated T1 tie trunk programmed for T1-type voice
operation. This arrangement provides voice communications or analog
data communications using modems.

—Data Operation. Available in Release 4.0 and later systems, T1

Switched 56 data operation allows switched data communications at
56 kbps. The same high-speed connectivity can link a MERLIN
LEGEND Communications System to another; or it can link a MERLIN
LEGEND Communications System to a DEFINITY system. Whether
used for digital tie-trunk emulation or not, a T1 data-operation channel
provides data communications on ly, not voice communications.

800 NI-BRI Module 3

Available for Release 4.0 and later systems, this module supplies eight line/trunk
jacks for connecting central office facilities that use the standard National
Integrated Services Digital Network 1 (ISDN-1) protocol and the Basic Rate
Interface (BRI) access arrangement (this combination is abbreviated

NI-1 BRI

These digital facilities are available from COs in many areas.
Each facility actually includes two “virtual” lines, two B-channels for carrying voice

and data, as well as a third D-channel for handling signaling and maintenance.

NOTE:

The 800 NI-BRI module is not available in Behind Switch mode.

).

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

System Components

3

555-661-118

Summary 3

Figure 3–3 shows the modules; Table 3–1 lists the number of available jacks for

each module and presents a brief description of the equipment you can connect
to it.

NOTE:

Modules labeled “GS/LS” can accept ground-start trunks, loop-start trunks,
or a combination of both types of trunks.

Issue 1

August 1998

Page 3-10Control Unit

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

System Components

3

800 GS/LS-ID

800 NI-BRI

8 Central Office Basic Rate Interfaces

8 GS/LS-ID Outside Lines

555-661-118

400EM

4 E&M Tie Trunks

Touch Tone Receivers

400

4 Outside Lines

PFT Jack

Line/
Trunk
Jacks

Line/
Trunk
Jacks

Line/
Trunk
Jacks

Line/
Trunk
Jacks

PFT Jack

4-pair

Tie­ Trunk
Jacks

Line/
Trunk
Jacks

PFT Jack
Jacks
(DS1)

Tie­ Trunk
Jacks

Touch Tone Receivers

400 GHS/LS/TTR

4 GS or LS Outside Lines

Line/
Trunk
Jacks

PFT Jack

800 DID

8 Direct Inward Dialing Trunks

Line/
Trunk
Jacks

Line/
Trunk
Jacks

800

8 Outside Lines

PFT Jack

Line/Trunk
Jacks

Line/Trunk
Jacks

PFT Jack

Issue 1

August 1998

Page 3-11Control Unit

800 GS/LS

8 GS/LS Outside Lines

PFT Jack

Line/Trunk
Jacks

Line/Trunk
Jacks

PFT Jack

800

NI-BRI

008 OPT

800

GS/LS-ID

008 OPT

8 Off-Premisis (Basic) Telephones (+4)

Off-Premises
Telephone
(OPT) Jacks

Off-Premises
Telephone
(OPT) Jacks

100D 400EM 400 400

008

8 Analog Telephones (ATL)

008 MLX

8 MLX (Dighital) Telephones

012

12 Basic Telephone Sets

Basic
Telephone
Jacks

Analog
Extension
Jacks

008

Digital
Extension
Jacks

008 MLX

012

GS/LS/TTR

016 with RING GEN.

16 Basic Telephone Sets

Basic
Telephone
Jacks

016

800 DID

408

4 Outside Lines/ 8 Voice Terminals

PFT Jack

Line/
Trunk
Jacks

Analog
Extension
Jacks

408

800

8 Analog Telephones (ATL)

408 GS/LS

4 GS or LS Outside Lines/

408

GS/LS

800

GS/LS

PFT Jack

Line/
Trunk
Jacks

Analog
Extension
Jacks

GS/LS-MLX

8 Analog Telephones (ATL)

408 GS/LS

4 GS or LS Outside Lines/

PFT Jack

Line/
Trunk
Jacks

Digital
Extension
Jacks

408

Figure 3–3. Line/Trunk and Extension Modules

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

System Components

3

555-661-118

Issue 1

August 1998

Page 3-12Control Unit

Table 3–1. Line/Trunk and Extension Modules

Module Line/Trunk Description

008 none Capacity: 8 analog extension jacks

Supports: Analog multiline telephones

008 MLX none Capacity: 8 digital extension jacks, each with 1 or 2 extensions (each

extension is assigned an individual extension number)
Supports: MLX extensions, including:

— MLX voice only
— MLX voice with Voice Announce to Busy
— MLX voice and ISDN terminal adapter
— MLX voice and Multi-Function Module (MFM) with T/R adjunct
— ISDN terminal adapter only
— Access device for data c ommunicati ons betwee n a PC on th e system
and a high-speed Internet connection, connection to remote node LAN
access server, or ISDN router*
— CTI (Computer Telephony Integration) link
— Videoconferencing systems us ing one jac k and 2B data featu re, MLX
telephone with some video systems*

008 OPT§none Capacity: 8 T/R extensions on 2-way voice transmission path with

support for telephones with message-waiting lights, 2 TTRs
Supports: On-premises or off-premises single-line telephones

012 none Capacity: 12 T/R extensions on 2-way voice transmission path with

support for telephones with message-waiting lights, 2 TTRs
Supports: Single-line telephones; Lucent Technologies Attendant;
MERLIN Mail

®

VMS; Intuity™ CONVERSANT®; T/R adjuncts (such as

answering or fax machine); analog data devices (such as modems)

016 (T/R)* none Capacity: 16 T/R extensions on 2-way voice transmission path with

support for telephones with message-waiting lights, 4 TTRs
Supports: Single-line telephones; Lucent Technologies Attendant;
MERLIN Mail VMS; CONVERSANT; T/R adjuncts (s uch as answering o r
fax machine); analog data devices (such as modems).

100D T1 or PRI Capacity: 24 channels (“virtual” lines/trunks) for voice and analog data

or for digital data only (T1); or 23 B-channels for voice and data and 1
channel used for signaling (PRI). Supports networking in Release 6.0
and later systems, Hybrid/PBX mode only.
Supports: See “100D Module” o n pa ge 3–7
lines/trunks: loop-start, ground-start, tie, and Direct Inward Dial (DID;
Hybrid/PBX mode only); can also supply subscriber services. In
Release 4.0 and later, T1 can also provide high-speed data
communications and digitally emulated tie trunks for data
communications. PRI supports subscriber services, allows high-speed
digital data communications, and includes special features.

†

‡

†

†

for details. T1 emul ate s 2 4

Continued on next page

MERLIN LEGEND Communications System Release 6.1

System Manager’s Guide

System Components

3

555-661-118

August 1998

Page 3-13Control Unit

Table 3–1. Continued

Module Line/Trunk Description

800
NI-BRI*

400 (LS)

400EM Tie trunk Capacity: 4 tie trunks. Supports networking in Release 6.0 and later

400
GS/LS

¶

408

408
GS/LS

408
GS/LS­MLX**

¶

800

800 DID DID, TTR Capacity: 8 lines/trunks, 2 TTRs
800

GS/LS
800 GS/

LS-ID

BRI Capacity: 8 BRI facilities, each with 2 B-channels (“virtual” lines) for

voice and data and 1 channel used for signaling.
Supports: See “800 NI-BRI Module” on page 3–9

for details. Voice,
data, video, and other services at 64 kbps over standard ISDN
lines/trunks.

¶

LS, TTR Capacity: 4 lines/trunks, 4 TTRs, 1 PFT telephone

Supports: 1 PFT telephone

systems, Hybrid/PBX mode only.

LS or GS,
TTR

Capacity: 4 lines/trunks, 4 TTRs, 1 PFT telephone
Supports: PFT telephone with ground-start (GS) button

LS Capacity: 4 lines/trunks, 8 extensions, 1 PFT telephone

Supports: Analog multiline telephones; CMS; a PFT telephone

LS or GS Capacity: 4 lines/trunks, 8 extensions, 1 PFT telephone

Supports: Analog multiline telephones; CMS; PFT telephone with GS

button

LS or GS Capacity: 4 lines/trunks, 1 PFT telephone, 8 digital extension jacks for

MLX extensions, including:

— MLX voice only
— MLX voice with Voice Announce to Busy
— MLX voice and ISDN terminal adapter
— MLX voice and MFM with T/R adjunct
— ISDN terminal adapter only
— Access device for data c ommunicati ons betwee n a PC on th e system
and a high-speed Internet connection, connection to remote node LAN
access server, or ISDN router
— CTI (Computer Telephony Integration) link
— Videoconferencing systems us ing one jac k and 2B data featu re, MLX
telephone with some video systems*

†

‡

†

†

LS Capacity: 8 lines, 2 PFT telephones

Supports: 2 PFT telephones

LS or GS,
TTR

LS or GS Capacity: 8 lines/trunks, 2 PFT telephones; 2 TTRs

††

Capacity: 8 lines/trunks, 2 PFT telephones
Supports: 2 PFT telephones with ground-start (GS) button

Supports: Caller ID (gro und -sta rt trunks only), if you subscribe to caller

identification from the local phone company), displays the numbers of
incoming callers (from supported areas) on MLX display phones.

Issue 1

Continued on next page