Lucent Technologies MERLIN LEGEND Release 6.0 Service manual

MERLIN LEGEND®
Communications System
Release 6.0
Pocket Reference
555-660-116
Comcode 108136029
Issue 1
February 1998

Ordering Information
To order copies of this document:
Call: BCS Publications Center
Write: BCS Publications Center
2855 North Franklin Road
Indianapolis, IN 46219-1385
Order: Document No. 555-660-116
Comcode: 108136029
Issue 1, February 1998
For assistance when installing or programming the system:
Call: National Service Assistance Center (NSAC) at
1 800 628-2888 or your Lucent Technologies representative
Notice
While reasonable efforts were made to ensure that the information
in this document was complete and accurate at the time of printing,
Lucent Technologies can assume no responsibility for errors.
Changes or corrections to the information in this document may be
incorporated into reissues.
Copyright © 1998 Lucent Technologies 555-660-116
All Rights Reserved Issue 1
Printed in USA February 1998
Domestic: International:
1 800 457-1235 (voice) 1 317 322-6791 (voice)
1 800 457-1764 (fax) 1 317 322-6849 (fax)

Trademarks
MERLIN LEGEND, DEFINITY, 5ESS, ACCUNET, CONVERSANT,
DEFINITY, MERLIN MAIL, MERLIN II, MERLIN Identifier, MLX-5,
MLX-5D, MLX-10, MLX-10D, MLX-10DP, MLX-16DP MLX-20L,
MLX-28D, Magic On Hold, MEGACOM, MultiQuest, MERLIN, and
SYSTIMAX are registered trademarks, and 4ESS, ProLogix,
AUDIX Voice Power, Fax Attendant System, HackerTracker,
PassageWay, Picasso, Lucent Technologies Attendant, MERLIN
PFC, and TransTalk are trademarks of Lucent Technologies in the
U.S. and other countries.
Mirage, StarSet, Supra, and Supra NC are registered trademarks
of Plantronics, Inc.
PagePac is a registered trademark, and Powermate and Zonemate
are trademarks of DRACON, a division of Harris Corp.
Microsoft is a registered trademark and Windows is a trademark of
Microsoft Corporation.
IBM is a registered trademark of International Business Machines,
Inc.
CLASS is a service mark of Bellcore.
NORTEL is a registered trademark and DMS a trademark of
Northern Telecom.
MCI, Prism, and Vnet are registered trademarks of MCI
Communications.
Novell and NetWare are registered trademarks of Novell
Corporation.

MERLIN LEGEND Communications System Release 6.0
Pocket Reference
555-660-116 Issue 1
February 1998
Page 4

MERLIN LEGEND Communications System Release 6.0
Pocket Reference
555-660-116 Issue 1
February 1998
Page v
Contents
Release 1.1 Enhancements 1
Release 2.0 Enhancements 2
Release 2.1 Enhancements 4
Release 3.0 Enhancements 7
Release 3.1 Enhancements 10
Release 4.0 Enhancements 10
Release 4.1 Enhancements 12
Release 4.2 Enhancements 14
Release 5.0 Enhancements 16
Release 6.0 Enhancements 20
Design Benefits 25
Environmental Specifications 26
Power and Grounding 28
Control Unit Interfaces 31
Network Interface Requirements 32
FCC Registration 32
DOC Registration 32
Hardware and Software Capacities 33
Ordering Codes 38
Control Unit Modules 70

MERLIN LEGEND Communications System Release 6.0
Pocket Reference
555-660-116 Issue 1
February 1998
Contents
Page vi
Adjunct Summary 76
Power Supply Unit Load
Requirements 86
Unit Load Calculation Rules 86
Unit Load Rating of System Modules 87
Unit Load Rating of System Trunks,
Telephones, and Adjuncts 88
System Feature Availability by
Operating Mode 89
Telephone and Operator Console
Features 92
Reference Documents 106
Maintenance Error Codes 109
Technical Addendum 109
Module/Component History 128
Telephone LEDs 140
Wiring Constraints 144
Installing SPM 145
Accessing SPM 145
Technical Support Telephone
Numbers 148

DEFINITY ECS Release 6
System Description Pocket Reference
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January 1998
Page 1
Release 1.1 Enhancements
Release 1.1 Enhancements
Refer to Release 1.1 Notes for detailed descriptions of Release 1.1
enhancements. Release 1.1 includes all Release 1.0 functionality
plus the enhancements described in the following sections.
Language Selection
This selection allows you to program the system for the display of
prompts, menus, and messages on MLX display telephones in
English, French or Spanish. You can also program the following
options in any of these languages, independently of the system
language:
■Individual extensions with MLX telephones
■System Programming and Maintenance (SPM)
■System programming reports
■SMDR report headers
MLX-10D®, MLX-20L®, and MLX-28D®display telephones and
MLX-10®nondisplay telephones are available in three separate
versions, with factory-set buttons in English, Spanish, or French.
(The MLX-10DP®is available in the English version only.) In
addition, user and operator guides and telephone tray cards are
available in all three languages.
Programming and Maintenance
Programming and maintenance enhancements include the
following:
■Additional Inspect capability in system programming
■Editing capability (Backspace selection) in extension
programming
■Improvements to system reports
■An access log that records the last 20 times maintenance or
system programming has been accessed
■Longer (20-second) gap between ring cycles for programming
mode and Forced Idle tone
Operational
System operational enhancements include the following:
■Automatic selection of an SA button when Conference is
invoked (Hybrid/PBX mode)
■Prompting through Conference feature on MLX display
telephones
■Relocation of the More prompt on the MLX-20L display
telephone
■Display of the number saved on a programmed Last Number
Dial or Saved Number Dial button when the button is inspected
SPM
SPM enhancements include operation in English, French, or
Spanish; faster backup and restore; and automatic on-screen
display of reports as they are created with a Browse capability for
reading the reports.

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Release 2.0 Enhancements
Equipment
Additional equipment includes the 8102 and 8110 analog
telephones, four headsets, two headset amplifiers, and a
transparent protective cover for the MLX-10 and MLX-10D
telephones. The 8102 and 8110 telephones are also compatible
with Release 1.0.
PF Registration
PF registration number AS5USA-65646-PF-E is assigned by the
FCC for operating the MERLIN LEGEND®Communications
System in Hybrid/PBX mode in the United States. (The PF
registration is also applicable to Release 1.0 systems.
Release 2.0 Enhancements
Refer to Release 2.0 Notes for detailed descriptions of Release 2.0
and later enhancements. Release 2.0 includes all Release 1.1
functionality plus the enhancements listed below.
Programming
Programming enhancements include the following:
■Extension Copy is a feature that reduces programming time by
allowing the use of any extension as a template for
programming another extension or block of extensions through
centralized telephone programming.
■Integrated Administration provides a single interface through
Integrated Solutions III (IS III) for programming entries common
to the MERLIN LEGEND Communications System and AUDIX
Voice Power™.
■Any SPM Version 2.xx (where xx is replaced by numbers)
provides a Convert function for use in upgrading the system
from Release 1.0 or 1.1 system to Release 2.0 and later format,
allowing reuse of existing system programming on the
upgraded system.
■Forced Idle reductions keep system interruptions at a minimum.
In general, the smallest necessary component is forced idle
during programming activities. For example, renumbering a
single extension idles only one extension. Only a few system-
wide programming activities, such as setting the system mode
and system renumbering, idle the entire system.
Operational
System operational enhancements include the following:
■Coverage VMS Off is a feature that prevents incoming outside
calls from going to voice mail. (All other coverage remains
active as programmed.) The feature is programmed extension
by extension, either through extension programming or through
centralized telephone programming.
■A Night Service group can be programmed to include either
extensions or a calling group as members. However, you should
not program both individual extensions and a calling group into
the Night Service group because individuals will not have a
chance to answer before calling group members do.

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Release 2.0 Enhancements
■When AUDIX Voice Power sends a Leave Message notification
to an extension, the system identifies the voice mail system as
the sender of the message. When the voice mail subscriber
uses the Return Call feature, the call goes to any available
voice mail port, not just to the specific port that generated the
message. This reduces the chance of getting a busy port.
■Coverage receivers can call coverage senders and have the call
receive coverage treatment. If a receiver calls a sender for
whom he or she is covering, and the sender is busy or
unavailable, the call proceeds to other points of coverage. It
does not come back to the receiver who originated the call.
■Enhancements to display prompts include automatic posting of
a
'R1RW'LVWXUE message (for MLX display telephones or
other multiline telephones, a Posted Message button must be
programmed for the
'R1RW'LVWXUE message to be posted
automatically). When a user activates the Do Not Disturb
feature, and confirmation messages when a user activates
Hold, Privacy, Saved Number Dial, and Transfer.
■Direct Inward Dialing (DID) trunk emulation on a T1 facility
provides up to 24 DID channels on a single DS1 interface,
instead of requiring 24 separate physical trunks.
■A telephone user can send a timed flash (switchhook flash) on a
loop-start trunk call on a System Access (SA) button.
Fax Attendant System™
Fax Attendant is an application for sending and receiving fax
messages; its interface is similar to the voice mail interface
provided by AUDIX Voice Power. Fax Attendant System, which co-
resides with AUDIX Voice Power on the IS III platform, provides the
following services:
■Fax Call Coverage. Receives and holds messages for
subscribers whose fax machines are busy or out of paper. this
service also allows a subscriber to have a personal fax number
without having a fax machine.
■Fax Mail. Allows subscribers to create and use fax distribution
lists, send and receive fax messages, and record personal
greetings for incoming fax calls.
■Fax Response. Prompts callers to select and receive faxes
from a customer-created menu of choices, using touch-tone
responses.
408 GS/LS-MLX Module
The 408 GS/LS-MLX module (Releases 2.0 and higher only)
combines four line/trunk jacks for ground-start or loop-start trunks
and eight extension jacks for MLX telephones on a single module in
the control unit.
Primary Rate Interface (PRI)
Primary Rate Interface (PRI) enhancements include the following:
■Connectivity to the 5ESS®Generic 6
■Multiple Incoming calls to directory number
■Call-by-Call Service Selection
■Password handling for FTS2000
■Extension ID as Calling Party Number for Automatic Number ID
(ANI)

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Release 2.1 Enhancements
Maintenance
Maintenance enhancements include the following:
■Clear descriptions of module test failures
■Optional printing of hard copy of error logs
■Display that correlates extension numbers to slot/port and
logical ID
■Display of the slots, trunks, and extensions that are
maintenance busy
■Internal digital switching element (DSE) loopback test for all
modules
■B-channel loopback test for MLX modules
■B-channel line or call service states display
■Error log entries for dual-port RAM errors
Release 2.1 Enhancements
Refer to Release 2.1 Notes for detailed descriptions of Release 2.1
enhancements. Release 2.1 includes all Release 2.0 functionality
plus the enhancements listed below.
Operational
System operational enhancements include the following:
■When a call is forwarded to a multiline telephone that has an
Auto Dial or DSS button programmed for the forwarding
telephone, the green light next to the Auto Dial or DSS button
for the forwarding telephone does not flash.
■People answering calls received on Cover buttons are allowed
to generate touch tones if their telephones are not outward- or
toll-restricted.
■Calls received on personal lines with Do Not Disturb on go
immediately to coverage instead of waiting for the coverage
delay interval.
■A call put on hold at a Cover button can be added to a
conference by someone who has a personal line for the call.
■A call put on hold at a Cover button can be picked up by any
person who has a personal line for the call.
■Calls that have been put on hold at a Cover, SA, Shared SA, or
Pool button can be picked up by a person who has a personal
line button for the call.
■An inside call on hold at an SA button can be picked up and
transferred byany person with a Shared SA button
corresponding to the button with the held call.
■Calls that are on hold awaiting transfer can be picked up by any
user who has a personal line for the call.
■Beginning with Integrated Solution III Version 1.2, the automatic
reconciliation program that was run automatically at 3:00 a.m.
has been disabled and can be invoked manually from the User
Maintenance menu.
■When a telephone is programmed for Forced Account Code
entry, account codes do not have to be entered when using a
programmed Loudspeaker Paging button. In addition, an SMDR
record is not generated for calls made to paging ports.

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Release 2.1 Enhancements
■When an MLX telephone, other than an MLX-20L, is plugged
into an MLX port and the Personal Directory does not contain
any entries, the allocation of the Personal Directory resources is
released. If there are any entries in the Personal Directory, the
Personal Directory allocation and the entries in the Personal
Directory are saved in the MLX port.
■SMDR call records for calls made on PRI facilities are more
accurate than SMDR call records for calls made on non-PRI
facilities. Outgoing calls made on PRI facilities receive “answer
supervision.” Consequently, SMDR timing for calls made on PRI
facilities begins when the call is answered. Timing for calls
made on non-PRI facilities begins when dialing is completed.
Therefore, an SMDR call record is not generated when a call
made on a PRI facility is not answered at the far end.
■The Call Type field and the Called Number field on the SMDR
report have been changed for both the Basic and ISDN report
formats.
■An 012 port that is programmed as a generic voice messaging
interface (VMI) port can transfer an outside call to an outside
number.
■In a system where the transfer audible option is programmed for
Music On Hold and a music source is provided, outside callers
who are transferred to a calling group and are waiting in the
queue or who are parked or camped-on hear music while they
are waiting. Internal callers never hear music on hold while
waiting in the calling group queue or when the are parked,
camped-on, or being transferred to another extension.
Installation and Hardware
Installation and hardware enhancements include the following:
■The control unit covers for the MERLIN LEGEND
Communications System are the same easy-to-use covers as
those for the MERLIN®II Communications System.
■A new 012 (T/R) module [apparatus code 517G13 (28) or higher
letter] contains a built-in ring generator. The maximum ring
equivalency number (REN) supported is 2.2, and the module
rings four ports at one time. Bridging of single-line telephones is
not supported due to poor transmission quality.
■A new 008 OPT module (labeled “with RING GEN.”) contains a
built-in ring generator. It rings four ports at a time.
■Ferrite cores for the power supply modules are shipped from the
factory to comply with FCC Part 15 requirements.
■3129-WTWA (touch-tone outdoor telephone equipped with cast
aluminum housing and armored handset cord with bell ringers)
■3129-WRWA (rotary-dial outdoor telephone equipped with cast
aluminum housing and armored handset cord with bell ringers)
■3129-WAWA (auto dial outdoor telephone equipped with cast
aluminum housing and armored handset cord with bell ringers)
■3129-WNWA (nondial, automatic ringing on dedicated circuit for
outdoor telephone equipped with cast aluminum housing and
armored handset cord with bell ringers)

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Release 2.1 Enhancements
Equipment and Operations
Equipment and operations enhancements include the following:
■A new release (Version 2.16 of the System Programming and
Maintenance (SPM) software to support international use.
■Support of PRI connection to DEFINITY®Communications
Systems
■MLX-10DP telephone, identical to an MLX -10D, except that it
provides a jack for access to the PassageWay Solution and
PassageWay Direct Connection Solution application.
Additional Application Packages, Telephones, Adjuncts, and
Adapter Enhancements
Additional application packages, adjuncts, and adapter
enhancements include the following:
■A Lucent Technologies Digital Announcer Unit, compatible with
all call management systems and tip/ring applications currently
available for the MERLIN LEGEND Communications System.
■The HackerTracker™system software enhancement to the Call
Accounting system (CAS) detects abnormal calling activity by
allowing monitoring of facilities or authorization code usage.
■A new digital Magic on Hold unit is available in three
configurations:
—Basic Prerecorded Package
—Personalized Package
—Custom Production Package
■The MERLIN®Identifier application enables people to receive,
store, and use information provided by the local telephone
company, specifically, the telephone number of a caller in an
area where the service is also supported.
■An Off-Premises Range Extender (OPRE) supports off-
premises operation with an off-premises extension capability
and extended range operation for tip/ring devices as well as
variable gain to improve voice transmission levels.
■PagePac®Plus Loudspeaker Paging Systems do not require
system adapters. The controller provides 8 built-in zones
(expandable to 56 zones by using up to 3 16-zone expansion
units), group zones, talkback, night bell, operator override,
tones, door supervision, microphone input, and system access
security codes as standard features.
■PassageWay Solution (Release 1.0) software consisting of four
applications that run with Microsoft®Windows™3.1 or later and
provide an interface between an IBM®-compatible personal
computer and the MERLIN LEGEND system.
■Four single-line telephones with memory buttons: 710, 715,
725, and 730.
■Four specialty handsets compatible with all MLX telephones
and the 3101-series, 3178-NHL, 8102, and 8110 single-line
telephones.

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Release 3.0 Enhancements
Release 3.0 Enhancements
Release 3.0 includes all Release 2.1 functionality plus the
enhancements listed below.
Equipment
New hardware includes a variety of components. Additional details
are included elsewhere in this book.
■CPU modifications include:
A processor running at 16 MHz with a 32-bit wide data bus
1.5 Mbytes of non-volatile (battery-backed) RAM
4.0 Mbytes of Flash ROM
PCMCIA memory card interface
A full-duplex 1200/2400 bps modem
Error/Status code display for maintenance support
■An 800 GS/LS-ID line/trunk module delivers the calling party’s
telephone number to the customer premises (MLX display
telephones only) if the service is subscribed to by the customer
and if it is supported by the caller’s telephone company.
■Support for:
MDC 9000 (6-line, cordless)
MDW 9000 (6-line, cordless, wireless)
8101 (single-line telephone, desk or wall-mount, data/fax jack,
selectable positive disconnect)
2500 YMGL and 2500 MMGL (single-line desk telephones,
selectable positive disconnect)
Picasso™Still-Image telephone (for interactive display of still
images)
■Videophone 2500 single-line phone with interactive video
display
■Pre-fabricated and pre-drilled backboard
Installation, Upgrade Administration, and Maintenance
These are the new MERLIN LEGEND Communications System
capabilities:
■SPM (Release 3.18) conversion of translations from Release
1.0, 1.1, 2.0, and 2.1 to 3.0
■Remote operation at 1200/2400bps
■Advice and feedback administration screens for new Release
3.0 functionality
■PCMCIA Memory Card Interface (a Release 3.0 processor
board required) allowing:
—System software installation
—System software upgrade
—800 GS/LS-ID port module firmware upgrade
—Integrated backup and restore of translations
Automatic and manual options for backup and restore are
available on the system. Automatic backup can be scheduled
weekly or daily to fit the customer’s needs.
■Inter-digit dialing timer values are administrable

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Release 3.0 Enhancements
■Inspection of Lines/Trunks displays only those lines and trunks
configured on system rather than all 80 facilities
■Stations and facilities in Maintenance Busy (both manual and
automatic) can be identified by the maintenance monitor
User Features
Security
The Remote Access feature allows people at remote locations to
enter the system by dialing the number of a line or trunk designated
for remote access. The system can be programmed to require the
remote user to dial a barrier code (a type of password) after
reaching the system. In earlier versions, the system-wide barrier
code length is fixed at 4 digits. Release 3.0 allows a system-wide
barrier code length ranging from a minimum of 4 digits to a
maximum of 11 digits, with a default setting of 7 digits. SMDR
records are enhanced to provide information for remote access
calls. If the remote access call is received on a facility providing
Caller ID information (see below), the SMDR report can help trace
the call.
Caller ID
Caller information (telephone number) is furnished to MLX display
telephones by an 800 GS/LS-ID module using the LS (loop-start)
option. This allows customers to screen calls prior to answering the
phone, as well as providing calling party information for use with
various applications. This function is available only when the
customer subscribes to caller identification service from the local
telephone company, if the telephone company supports that
service.
Shared System Access (SSA)
A telephone may have up to 27 Shared SA buttons to expand
extension coverage.
Authorization Codes
The Authorization Code feature allows you to make calls using your
calling privileges when you are dialing from an extension other than
your own. When you enter your authorization code (ranging from 2
to 11 characters and unique across the system), the privileges and
restrictions assigned to your home extension override the current
restrictions at the host extension. This includes toll restriction,
outward restriction, Facility Restriction Level (FRL), Allowed Lists,
Disallowed Lists, Night Service Exclusion List, and Dial Access to
Pools. All other functions on the telephone are those of the local
telephone, not the home extension.
Authorization codes can also be used for the purposes of call
accounting through the SMDR printout. The SMDR account code
field can hold the authorization code extension number or the
authorization code itself.
Direct Voice Mail
If your company has voice mail, this feature allows you to dial a co-
worker’s voice mailbox directly without ringing that person’s
extension. Direct Voice Mail is especially useful for transferring
calls when a co-worker is not available.

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Release 3.0 Enhancements
Additional Features
The status of Leave Word Calling (LWC) and Privacy are retained
across cold starts.
Caller ID (CLASSSM ICLID and PRI) are available on primary
coverage and return from transfer.
Additional Application Packages, Adjuncts, and Adapter
Enhancements
PassageWay
TM
Direct Connection Solution
PassageWay Direct Connection Solution (Release 2.0) is a Lucent
Technologies computer telephone integrated product that links a
desktop Windows PC to the MERLIN LEGEND’s MLX-10DP,
MLX-16DP, MLX-20L, or MLX-28D telephone. The Windows
applications are: Lucent Technologies Call (autodial/contact
manager), Lucent technologies Buzz (screen-pop applications),
Lucent Technologies Set (station programming interface), and Log
Viewer (call log application). PassageWay Direct Connection
Solution (Release 2.0) is the version supported on MERLIN
LEGEND 3.0.
PagePal
PagePal connects several Lucent Technologies and other paging
systems to the MERLIN LEGEND Communications System. No
other system adapter is necessary for loudspeaker paging.
Fax Attendant 2.1.1
Fax Attendant Release 2.1.1., which co-resides with AUDIX Voice
Power on the IS III Release 1.2 platform, provides the same
functionality as earlier versions, plus the following enhancements:
■Personal Fax Messaging. Inbound faxes can be stored until
the subscriber asks that they be printed, at any fax machine he
or she specifies, on company premises or off-site (when the
subscriber retrieves fax messages remotely).
■Fax Mail. Allows subscribers to send fax messages, get fax
messages, record personal greetings, and program outcalling.
■Fax Broadcast. Provides a simple way to send one fax to as
many as 1000 fax numbers.
Call Accounting System (CAS) for Windows
This stand-alone version of CAS takes advantage of the easy-to-
use graphical environment offered by Microsoft Windows. Through
data communications, it also allows one CAS system to serve
multiple business sites.
Group Video Conferencing
Group video conferencing is supported over DS1 (Digital Signal
Level 1) facilities with PRI. (Video conferencing has been available
since Release 2.0.)

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Release 3.1 Enhancements
Release 3.1 Enhancements
Release 3.1 includes all Release 3.0 functionality plus the toll fraud
and security enhancements listed below.
Star Codes
Star codes are dialable codes for services provided by the CO. The
user has to contract with the CO to get these codes activated.
With this release, users can now add a star (*) code to Allowed and
Disallowed Lists to help prevent toll fraud. The MERLIN LEGEND
system checks if the star codes are allowed. If allowed, the system
then checks the remaining dialed digits against the calling
restrictions.
As a security enhancement, *03 requires a technician to enter a
maintenance password to access test procedures.
Second Dial Tone Timer
Users can program a delay period (Second Dial Tone Timer) during
which no dialing is allowed. This is useful in cases when the CO
sends a second dial tone (such as after a star code); the user may
start dialing before getting the second dial tone, creating a risk of
toll fraud or misrouted calls. If the timer is programmed and dialing
is attempted during the delay, the call is not completed.
Trunk-to-Trunk Transfer
This feature allows or disallows trunk-to-trunk transfer on a per-
station basis. The default setting for all stations is restricted
(disallowed).
Toll Fraud Defaults
This feature changes these default settings:
■No station or remote access user with a barrier code may dial
access to any pool.
■Disallowed List 7 contains numbers most commonly abused for
toll fraud: 0, 10, 11, 1809, 1700, 1900, 976, 1ppp976 (p=any
number or character), *. Assign this list to extensions as
needed.
■VMI ports are maximally restricted. Outward restriction is on and
they are assigned to Disallowed List 7.
■FRL settings for VMI ports is 0, for local calls is 2, and for toll
calls is 3.
Release 4.0 Enhancements
Release 4.0 includes all Release 3.1 functionality plus the
enhancements listed below.
System Functionality
The MERLIN LEGEND Communications System functionality is
enhanced to include the following:
■An expanded dial plan supporting up to 200 tip/ring devices.
■National ISDN BRI service support for voice and data
connectivity to the CO. Data speeds are 14.4 kbps for analog
data and up to 64 kbps for digital data. Release 4.0 supports the
IOC Package “S” and Multiline Hunt service configurations.

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Release 4.0 Enhancements
■Certified 2B-data video/data applications that connect to MLX
ports and use NI-1 BRI, PRI, or T1 Switched 56 network
interfaces to make outside connections.
NOTE:
The 008 MLX and 408 MLX modules must have firmware
vintage other than 29. An earlier or later vintage firmware is
supported.
■The use of T1 facilities for digital data transmission of up to
56 kbps per T1 channel.
Equipment
New hardware includes two new modules. They are:
■An 016 module supporting 16 tip/ring devices and four TTRs.
All 16 ports can ring simultaneously. The module’s ringing
frequency (default 20 Hz) can be changed through
programming to 25 Hz for those locations that require it.
■An 800 NI-BRI module supporting high-speed data and video
transmission.
Maintenance Support
The R4.0 software includes a Provisioning Test tool that
technicians can use to verify the operational status of installed
NI-1 BRI lines.
User Features
Product Enhancements
The following enhancements are added:
■Delay Call Forwarding. Each user can program a Forwarding
Delay setting for calls that are forwarded using Forward,
Remote Call Forwarding, or Follow Me. The forwarding delay is
the number of times a call rings at the forwarding extension
before the call is sent to the receiver. During the delay, the user
may screen calls by checking the displayed calling number (if it
is available). The delay can be set at 0 to 9 rings. The factory
setting for Forwarding Delay is 0 rings (no delay).
■Voice Announce on the QCC. The QCC operator can use the
fifth Call Button to announce a call on another user’s
speakerphone if the destination telephone has a Voice
Announce-capable SA button available. QCCs cannot receive
Voice Announce calls; they are received as ringing calls. The
factory setting for the fifth Call button is Voice Announce
disabled.
■Timebased option for overflow on Calling Group. If the
Overflow Threshold Time is set to a value between 1-900
seconds, calls that remain in the Calling Group Queue for the
set time are sent to the Overflow Receiver. This is in addition to
the number of calls that are in the Queue (previously, the only
way to send calls to the Overflow Receiver). If the Overflow
Threshold Time is set to 0, Overflow by time is off. The factory-
set time limit is 0 (overflow by time is off).
■Downloadable Firmware for 016 T/R board and the NI-BRI
board. The PCMCIA technology introduced in Release 3.0
continues to support these two new boards in Release 4.0 for
installation and upgrade. A Release 3.0 or later processor is
required for PCMCIA technology.

DEFINITY ECS Release 6
System Description Pocket Reference
555-230-211 Issue 2
January 1998
Page 12
Release 4.1 Enhancements
Single-Line Telephone Enhancements
The following enhancements are added to the single-line
telephones:
■Disable Transfer. Through centralized programming, the
system manager can disable the ability to transfer calls by
removing all but one SA or ICOM button from the telephone.
■No Transfer Return. When a handset bounces in its cradle, the
MERLIN LEGEND system interprets this as a switchhook flash
and attempts to transfer a call. This causes unintended ringing
at the user’s phone. In Release 4.0, a flash followed by an on-
hook state when a dial tone is present causes the call to be
disconnected.
■Forward Disconnect. All ports on 012 and 016 modules now
send forward disconnect to all devices connected to them when
forward disconnect is received from the CO. This is a non-
administrable operation.
System Security
Greater system security is achieved by requiring a 7-digit
maintenance password when using SPM to perform remote
administration via the Remote Access Feature.
Release 4.1 Enhancements
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
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 system-wide 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
system-wide in previous releases.
These enhancements allow the system manager to customize
coverage call delivery to match individual extensions’ call-
handling requirements.

DEFINITY ECS Release 6
System Description Pocket Reference
555-230-211 Issue 2
January 1998
Page 13
Release 4.1 Enhancements
■Night Service Coverage Control
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 Mail 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 off) 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 on) 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
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.
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.
■Forward on Busy
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
a station 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)
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).
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.
The tool is used during system installation and maintenance to
test the functionality of the BRI lines and report analyzed
results.

DEFINITY ECS Release 6
System Description Pocket Reference
555-230-211 Issue 2
January 1998
Page 14
Release 4.2 Enhancements
Release 4.2 Enhancements
Release 4.2 includes all Release 4.1 functionality plus the
enhancements listed below. There are no hardware changes or
Release 4.2.
■Additional Network Switch interface and Services Options
for ISDN Primary Rate Interface (PRI)
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
switch types that are currently available for AT&T Switched
Network Services):
—Nortel® DMS™-100 Generic BCS 36 for local exchange
carrier services
—Nortel DMS-250 Generic MC107 serving the MCI network
—Digital Switch Corporation DEX600E Generic 500-39.30
serving the MCI network
Beginning with Release 4.2, the following MCI PRI and local
exchange carrier (LEC) PRI services (along with the AT&T
Switched Network Services) can be connected to users of the
MERLIN LEGEND Communications System:
—MCI Toll Services for DMS-250 or DEX600E switch type:
R 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
R 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
R MCI 800 for domestic, toll-free, incoming voice calls
R MCI 900 service numbers
—Local Exchange Carrier Services for DMS-100 switch type:
R DMS Virtual Private Network service for calls between the
MERLIN LEGEND Communications System and another
communications system (such as another MERLIN
LEGEND Communications System)
R DMS INWATS (Inward Wide Area Telephone Service) for
domestic, toll-free, incoming voice calls
R DMS OUTWATS (Outward Wide Area Telephone Service)
for domestic, outgoing, long-distance voice calls
R DMS FX (foreign exchange) to provide local call rating for
calls from the local exchange to the area serviced by the
foreign exchange.
R DMS Tie Trunk to provide private exchange call rating for
calls placed on a dedicated central office facility between
the MERLIN LEGEND Communications System and
another communications system (such as another
MERLIN LEGEND Communications System)