AT&T MERLIN LEGEND Release 2.0 Analog Multiline... User guide

AT&T
AT&T 555-620-111
Issue 1
October, 1992
MERLIN LEGEND
TM
Communications System
Release 2.0
System Programming

7Copyright © 1992 AT&T
AT&T 555-620-111
All Rights Reserved Issue 1
Printed in U.S.A.
October 1992
Notice
Every effort was made to ensure that the information in this book was complete and accurate at the time of
printing. However, information is subject to change.
Federal Communications Commission (FCC)
Electromagnetic Interference Information
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 reasonable protection against harmful
interference when the equipment is operated in a commercial environment. This equipment generates,
uses, and can radiate radio frequency energy and, if not installed and used in accordance with the
instruction manual, may cause harmful Interference to radio communications. Operation of this equipment
in a residential area is likely to cause harmful interference, In which case the user will be required to correct
the interference at his own expense.
Canadian Department of Communications (DOC)
Interference Information
This digital apparatus does not exceed the Class A Ilmlts for radio noise emlsslons set out In the radio
interference regulations of the Canadian Department of Communlcatlons,
Le Présent Appareil Numérique n’emet pas de bruits radloélectrlques depassant Ies Iimltes applicables
aux appareils numériques de la class A prescrltes clans Ie Règlement sur Ie broulllage radloélectrlque
édicté par Ie ministére des Communications du Canada.
Trademarks
5ESS, ACCUNET, CONVERSANT, Magic On Hold, MEGACOM, MERLIN, and MultQuest are registered
trademarks and AUDIX Voice Power, FAX Attendant System, MERLIN LEGEND, MERLIN MAIL, MLX- 10,
MLX-10D, MLX-20L, and MLX-28D, are trademarks of AT&T In the U.S. and other countries
MS-DOS is a registered trademark of Microsoft Corporation
UNIX is a registered trademark of UNIX System Laboratories, Inc.
Support Telephone Number
AT&T provides a toll-free customer Helpline (1-800-628-2888) 24 hours a day (U.S.A. only). Call the
Helpline, or your authorized dealer, if you need assistance when Installing, programming, or using the
system.

Contents
About This Book
1
■ Intended Audience 1
■ Conventions 1
■ Product Safety Labels 2
■ Related Documents 3
■ How to Comment on This Document 4
1
Programming Overview
■ Introduction to System Programming
■ System Programming Console
■ Programming Procedures
■ Entering System Programming
■ Exiting System Programming
■ Idle States
■ Product Enhancements
1-1
1-2
1-4
1-9
1-15
1-18
1-19
1-22
2
Programming with SPM
■ Introduction to SPM
■ Connecting the PC
■ Starting SPM
■ Using SPM
■ Installing the SPM Software
■ Inter-Release Compatibility
■ Upgrade Procedure
2-1
2-2
2-7
2-10
2-13
2-32
2-37
2-38
3
Programming Procedures
3-1
■ Basic System Operating Conditions 3-1
■ System Renumbering
3-22
■ System Operator Positions
3-43
■ Lines and Trunks
3-51
■ DS1 Facilities
3-97
Table of Contents i

Contents
Programming Procedures (continued)
Tie–Trunks -
DID Trunks
PRI Facilities
Telephones
Auxiliary Equipment
Optional Telephone Features
Optional Operator Features
QCC Optional Features
Optional Group-Assigned Features
Optional Group-Calling Features
System Features
Remote Access Features
Automatic Route Selection
Night Service
Labeling
Print Reports
Data Features
Integrated Administration
3-125
3-148
3-173
3-245
3-278
3-297
3-324
3-329
3-363
3-384
3-416
3-472
3-496
3-538
3-555
3-572
3-580
3-584
4
Centralized Telephone Programming
4-1
■ Centralized Programming
4-2
■ Feature Quick Reference
4-13
AMenu Hierarchy
A-1
B
LED Displays
B-1
ii
Table of Contents

Contents
c General Feature Use and Telephone
Programming
C-1
D Button Diagrams
D-1
E Sample Reports
E-1
F
General System Programming Sequence F-1
G
Programming Special Characters
G-1
Table of Contents iii

Contents
iv
Table of Contents

Figures
1
Programming Overview
Figure 1-1.
Figure 1-2.
Figure 1-3.
Figure 1-4.
Figure 1-5.
Figure 1-6.
Figure 1-7.
Figure 1-8.
Figure 1-9.
Figure 1-10.
Figure 1-11.
Figure 1-12.
Figure 1-13.
MLX-20L Telephone
Display Buttons
Console Overlay
Information Screen
Menu Selection Screen
Data Entry Screen
Inspect Example
Inspect Example: Inspect Screen
Procedure Branching for Menu Selections
Procedure Branching for Single and Block
Selections
Entry Mode
Screen Keys
System Busy Screen
1-4
1-6
1-7
1-10
1-10
1-11
1-11
1-12
1-12
1-13
1-13
1-14
1-19
2
Programming with SPM
Figure 2-1. The SPM Display
2-2
Figure 2-2. SPM Help Screen
2-7
Figure 2-3. Direct Local Connection
2-9
Figure 2-4. Local Modem Connection
2-9
Figure 2-5.
Remote Modem Connection
2-10
Figure 2-6. Pass-Thru
2-26
3
Programming Procedures
Figure 3-1. 2-Digit Numbering
3-23
Figure 3-2. 3-Digit Numbering
3-23
Figure 3-3. Set Up Space Numbering
3-24
D
Button Diagrams
Figure D-1. MLX Telephone Button Diagram (Hybrid/PBX
Mode)
D-2
Figure D-2. Analog Multiline Telephone Button Diagram
(Hybrid/PBX Mode)
D-3
Table of Contents v

Figures
Button Diagrams (continued)
Figure D-3. MLX Telephone Button Diagram (Key and
Behind Switch Mode)
D-4
Figure D-4. Analog Multiline Telephone Button Diagram
(Key and Behind Switch Mode)
D-5
vi
Table of Contents

Tables
1
Programming Overview
Table 1-1. Display Button Descriptions
1-6
Table 1-2.
System Programming Menu Options
1-17
2
Programming with SPM
Table 2-1. Function of PC Keys in SPM
2-3
Table 2-2. Backup Header: Feature Module
Identification Number
2-14
Table 2-3. Programming Compatibility 2-38
Table 2-4. Programming Needed after Upgrade to
Release 1.1
2-40
Table 2-5.
Programming Needed after Upgrade to
Release 2.0 2-40
3
Programming Procedures
Table 3-1.
Maximum Number of Operator Positions 3-43
Table 3-2.
Timers and Counters 3-202
Table 3-3. Special Services Table
3-226
Table 3-4. Programming Codes for Assigning SA/lCOM
Ring and Voice Buttons
3-266
Table 3-5. Data Features: Programming Procedures 3-580
Table 3-6. Programming through Integrated
Administration
3-585
Table 3-7. Database Reconciliation Rules
3-586
4
Centralized Telephone Programming
Table 4-1. Telephone Programming Codes: Quick
Reference Table
Table 4-2.
Copyable Features for All Telephones
Table 4-3.
Copyable Features for Operator Consoles
4-7
4-9
4-11
Table of Contents vii

Tables
B
LED Displays
Table B-1. Line or Trunk Feature Status
B-2
Table B-2.
Telephone Feature Status for DSS Console
Only
B-4
c
General Feature Use and Telephone
Programming
Table C-1.
Telephone and Operators Features
C-4
Table C-2.
Programming Analog Multiline Telephones
C-9
Table C-3.
Programming MLX-10 Telephones
C-10
Table C-4.
Programming MLX Display Telephones Using
the Display
C-11
E
Sample Reports
Table E-1. System Reports
E-1
Table E-2.
Report Contents
E-3
G
Programming Special Characters
Table-G-1.
Table G-2.
Table G-3.
Table G-4.
Special Characters for Single-Line
Telephones
G-2
Special Characters for Analog Multiline
Telephones
G-3
Special Characters for MLX Non-Display
Telephone
G-4
Special Characters for MLX Display
Telephones
G-5
. . .
Viii
Table of Contents

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.
IMPORTANT SAFETY INSTRUCTIONS
When installing telephone equipment, always follow basic safety precautions to
reduce the risk of fire, electrical shock, and injury to persons, including:
Read and understand all instructions.
Follow all warnings and instructions marked on or packed with the
product.
Never install telephone wiring during a lightning storm.
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 AT&T-manufactured MERLIN LEGEND™ Communications
System circuit modules, carrier assemblies, and power units in the
MERLIN LEGEND Communications System (511A) control unit.
Use only AT&T-recommended/approved MERLIN LEGEND
Communications System accessories.
If equipment connected to the analog station 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 overload wall outlets, as this can result in the risk of fire or
electrical shock.
The MERLIN LEGEND Communications System is equipped with a
three-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.
ix

Do not attach the power supply cord to building surfaces. Do not allow
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 electrical
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
Multi-Function Module (MFM).
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

Customer Support Information
Support Telephone Number
In the U.S.A. only, AT&T provides a toll-free customer Helpline
(1-800-628-2888) 24 hours a day. Call the Helpline, or your authorized dealer, if
you need assistance when installing, programming, or using your system.
Outside the U. S. A., if you need assistance when installing, programming, or
using your system, contact your authorized AT&T dealer.
Federal Communications Commission (FCC) Electromagnetic Interference
Information
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 reasonable protection against harmful interference when
the equipment is operated in a commercial environment. This equipment
generates, uses, and can radiate radio frequency energy and, if not Installed
and used in accordance with the instruction manual, may cause harmful
interference to radio communications. Operation of this equipment in a
residential area is likely to cause harmful interference, in which case the user
will be required to correct the interference at his own expense.
Canadian Department of Communications (DOC) Interference Information
This digital apparatus does not exceed the Class A limits for radio noise
emissions set out in the radio interference regulations of the Canadian
Department of Communications.
Le Présent Appareil Numérique n’émet pas de bruits radioelectriques
depassant Ies Iimites applicables aux appareils numériques de la class A
prescribes clans Ie reglement sur Ie brouillage radioelectrique edicté par Ie
ministère des Communications du Canada.
FCC Notification and Repair Information
This equipment is registered with the FCC in accordance with Part 68 of its
rules. In compliance with those rules, you are advised of the following:
Customer Support Information xi

Customer Support Information
Means of Connection. Connection of this equipment to the telephone
network shall be through a standard network interface jack:
USOC RJ11C, RJ14C, RJ21X. Connection to E&M tie trunks requires a
USOC RJ2GX. Connection to off-premises stations requires a
USOC RJ11C or RJ14C. Connection to 1.544-Mbps digital facilities must
be through a USOC RJ48C or RJ48X. Connection to DID requires a
USOC RJ11C, RJ14C, or RJ21X. These USOCs must be ordered from
your telephone company.
This equipment may not be used with party lines or coin telephone lines.
Notification to the Telephone Companies. Before connecting this
equipment, you or your equipment supplier must notify your local
telephone company’s business office of the following:
—The telephone number(s) you will be using with this equipment.
—The appropriate registration number and ringer equivalence
number (REN), which can be found on the back or bottom of the
control unit, as follows:
If this equipment is to be used as Key System, report the
number AS593M-72914-KF-E.
If the system provides both manual and automatic selection
of incoming/outgoing access to the network, report the
number AS593M-72682-MF-E.
If there are no directly terminated trunks, or if the only
directly terminated facilities are personal lines, report the
number AS5USA-65646-PF-E.
The REN for all three systems is 1.5A.
—For tie line connection, the facility interface code (FIC) is TL31M
and the service order code (SOC) is 9.0F.
—For connection to off-premises stations, the FIC is OL13C and
the SOC is 9.0F.
—For equipment to be connected to 1.544-Mbps digital service,
the FIC is 04DU9-B for D4 framing format or 04DU9-C for
extended framing format, and the SOC is 6.0P.
—For equipment to be connected to DID facilities, the FIC is
02RV2-T and the SOC is 9.0F.
—The quantities and USOC numbers of the jacks required.
—For each jack, the sequence in which lines are to be connected:
the line types, the FIC, and the REN by position when applicable.
You must also notify your local telephone company if and when this
equipment is permanently disconnected from the line(s).
The REN is used to determine the number of devices that may be
connected to the telephone line. Excessive RENs on the line may result
in the devices not ringing in response to an incoming call. In most, but
not all, areas the sum of the RENs should not exceed five (5.0). To be
certain of the number of devices that may be connected to the line, as
determined by the total RENs, contact the telephone company to
determine the maximum REN for the calling area.
xii Customer Support Information

Customer Support Information
Installation and Operational Procedures
The manuals for your system contain information about installation and
operational procedures.
Repair Instructions. If you experience trouble because your equipment
is malfunctioning, the FCC requires that the equipment not be used and
that it be disconnected from the network until the problem has been
corrected. Repairs to this equipment can be made only by the
manufacturers, their authorized agents, or others who may be authorized
by the FCC. In the event repairs are needed on this equipment, contact
your authorized AT&T dealer or, in the U.S.A. only, contact the National
Service Assistance Center (NSAC) at 1-800-628-2888.
Rights of the Local Telephone Company. If this equipment causes
harm to the telephone network, the local telephone company may
discontinue your service temporarily. If possible, they will notify you in
advance. But if advance notice is not practical, you will be notified as
soon as possible. You will also be informed of your right to file a
complaint with the FCC.
Your local telephone company may make changes in its facilities,
equipment, operations, or procedures that affect the proper functioning
of this equipment. If they do, you will be notified in advance to give you
an opportunity to maintain uninterrupted telephone service.
Hearing Aid Compatibility. The custom telephone sets for this system
are compatible with inductively coupled hearing aids as prescribed by
the FCC.
Automatic Dialers. WHEN PROGRAMMING EMERGENCY NUMBERS
AND/OR MAKING TEST CALLS TO EMERGENCY NUMBERS:
— Remain on the line and briefly explain to the dispatcher the
reason for the call.
—Perform such activities in off-peak hours, such as early morning
or late evening.
Direct Inward Dialing (DID).
a. This equipment returns answer supervision signals to the Public
Switched Telephone Network when:
(1) answered by the called station
(2) answered by the attendant
(3) routed to a recorded announcement that can be
administered by the customer premises equipment user
(4) routed to a dial prompt
b. This equipment returns answer supervision on all DID calls
forwarded back to the Public Switched Telephone Network.
Permissible exceptions are when:
(1)
a call is unanswered
(2)
a busy tone is received
(3) a reorder tone is received
Customer Support Information xiii

Customer Support Information
Allowing this equipment to be operated in such a manner as not to
provide proper answer supervision signaling is in violation of
Part 68 rules.
DOC Notification and Repair Information
NOTICE: The Canadian Department of Communications (DOC) label identifies
certified equipment. This certification means that the equipment meets certain
telecommunications network protective, operational, and safety requirements.
The DOC does not guarantee the equipment will operate to the user’s
satisfaction.
Before installing this equipment, users should ensure that it is permissible to
connect it to the facilities of the local telecommunications company. The
equipment must also be installed using an acceptable method of connection.
In some cases, the company’s inside wiring for single-line individual service
may be extended by means of a certified connector assembly (telephone
extension cord). The customer should be aware that compliance with the above
conditions may not prevent degradation of service in some situations.
Repairs to certified equipment should be made by an authorized Canadian
maintenance facility designated by the supplier. Any repairs or alterations
made by the user to this equipment, or any equipment malfunctions, may give
the telecommunications company cause to request the user to disconnect the
equipment.
Users should ensure for their own protection that the electrical ground
connections of the power utility, telephone lines, and internal metallic water pipe
system, if present, are connected. This precaution may be particularly
important in rural areas.
CAUTION: Users should not attempt to make such connections themselves, but
should contact the appropriate electrical inspection authority or electrician, as
appropriate.
To prevent overloading, the Load Number (LN) assigned to each terminal
device denotes the percentage of the total load to be connected to a telephone
loop used by the device. The termination on a loop may consist of any
combination of devices subject only to the requirement that the total of the Load
Numbers of all the devices does not exceed 100.
DOC Certification No. 230 4095A
CSA Certification No. LR 56260
Load No. 6
Renseignements sur la notification du ministière des Communications du
Canada et la reparation
AVIS: L’étiquette du ministère des Communications du Canada identifie Ie
matériel homologué. Cette étiquette certifie que Ie matériel est conforme à
certaines normes de protection, d’exploitation et de sécurité des réseaux de
télécommunications. Le Ministère n’assure toutefois pas que Ie matériel
fonctionnera à la satisfaction de I’utilisateur.
Avant d’installer ce matériel, I’utilisateur doit s’assurer qu’il est permis de Ie
raccorder aux installations de I’entreprise locale de télécommunication Le
xiv Customer Support Information

Customer Support Information
matériel doit également être installé en suivant une méthode acceptée de
raccordement. Dans certains cas, Ies fils intérieurs de I’enterprise utilisés pour
un service individual à Iigne unique peuvent être prolongés au moyen d’un
dispositif homologué de raccordement (cordon prolongateur téléphonique
interne). L’abonné ne doit pas oublier qu’il est possible que la conformité? aux
conditions énoncées ci-dessus n’empêchent pas la degradation du service
clans certaines situations. Actuellement, Ies entreprises de télécommunication
ne permettent pas que I’on raccorde Ieur matériel à des jacks d’abonné, sauf
clans Ies cas précis prévus pas Ies tarifs particuliers de ces entreprises.
Les réparations de matériel homologué doivent être effectuées par un centre
d’entretien canadien autorisé désigné par Ie fournisseur. La compagnie de
télécommunications peut demander à I’utilisateur de débrancher un appareil à
la suite de reparations ou de modifications effectuées par I’utilisateur ou à
cause de mauvais fonctionnement.
Pour sa propre protection, I’utilisateur doit s’assurer que tous Ies fils de mise à
la terre de la source d’énergie électrique, des Iignes téléphoniques et des
canalisations d’eau métalliques, s’il y en a, sent raccordés ensemble. Cette
précaution est particulièrement importance clans Ies régions rurales.
AVERTISSEMENT: L’utilisateur ne doit pas tenter de faire ces raccordements
lui-même; il doit avoir recours à un service d’inspection des installations
électriques, ou à un electrician, selon Ie cas.
L’indite de charge (IC) assigné à chaque dispositif terminal indique, pour éviter
toute surcharge, Ie pourcentage de la charge totale qui peut être raccordée à
un circuit téléphonique bouclé utilisé par ce dispositif. La terminaison du circuit
bouclé peut être constituée de n’importe quelle combinaison de dispositifs,
pourvu que la somme des indices de charge de I’ensemble des dispositifs ne
dépasse pas 100.
No d’homologation: 230 4095A
Node certification: CSA LR 56260
L’indite de charge: 6
Customer Support Information xv

Customer Support Information
MERLIN LEGEND D.O.C.
Location Label Placement Ministère des Communications
du Canada emplacement de
I’étiquette
xvi Customer Support Information

Customer Support Information
Security of Your System—Preventing Toll Fraud
As a customer of a new telephone system, you should be aware that there
exists an increasing problem of telephone toll fraud. Telephone toll fraud can
occur in many forms, despite the numerous efforts of telephone companies and
telephone equipment manufacturers to control it. Some individuals use
electronic devices to prevent or falsify records of these calls. Others charge
calls to someone else’s number by illegally using lost or stolen calling cards,
billing innocent parties, clipping on to someone else’s line, and breaking into
someone else’s telephone equipment physically or electronically. In certain
instances, unauthorized individuals make connections to the telephone network
through the use of remote access features.
The Remote Access feature of your system, if you choose to use it, permits off-
premises callers to access the system from a remote telephone by using an 800
number or a 7- or 10-digit telephone number. The system returns an
acknowledgement signaling the user to key in his or her authorization code,
which is selected and administered by the system manager. After the
authorization code is accepted, the system returns dial tone to the user. If you
do not program specific egress restrictions, the user will be able to place any
call normally dialed from a telephone associated with the system. Such an off-
premises network call is originated at, and will be billed from the system
location.
The Remote Access feature, as designed, helps the customer, through proper
administration, to minimize the ability of unauthorized persons to gain access to
the network. Most commonly, phone numbers and codes are compromised
when overheard in a public location, through theft of a wallet or purse
containing access information, or through carelessness (writing codes on a
piece of paper and improperly discarding it). Additionally, hackers may use a
computer to dial an access code and then publish the information to other
hackers. Enormous charges can be run up quickly. It is the customer’s
responsibility to take the appropriate steps to properly implement the features,
evaluate and administer the various restriction levels, protect access codes,
and distribute access codes only to individuals who have been fully advised of
the sensitive nature of the access information.
Common carriers are required by law to collect their tariffed charges. While
these charges are fraudulent charges made by persons with criminal intent,
applicable tariffs state that the customer of record is responsible for payment of
all long-distance or other network charges. AT&T cannot be responsible for
such charges and will not make any allowance or give any credit for charges
that result from unauthorized access.
To minimize the risk of unauthorized access to your communications system:
■ Use a nonpublished Remote Access number.
■ Assign authorization codes randomly to users on a need-to-have basis,
keeping a log of ALL authorized users and assigning one code to one
person.
Customer Support Information
xvii

Customer Support Information
Use random sequence authorization codes, which are less likely to be
easily broken.
Deactivate all unassigned codes promptly.
Ensure that Remote Access users are aware of their responsibility to
keep the telephone number and any authorization codes secure.
When possible, restrict the off-network capability of off-premises callers,
via use of Call Restrictions and Disallowed List capabilities.
When possible, block out-of-hours calling.
Frequently monitor system call detail reports for quicker detection of any
unauthorized or abnormal calling patterns.
Limit Remote Call Forward to persons on a need-to-have basis.
Limited Warranty and Limitation of Liability
AT&T warrants to you, the customer, that your MERLIN LEGEND
Communications System will be in good working order on the date AT&T or its
authorized reseller delivers or installs the system, whichever is later (“Warranty
Date”). If you notify AT&T or its authorized reseller within one year of the
Warranty Date that your system is not in good working order, AT&T will without
charge to you repair or replace, at its option, the system components that are
not in good working order. Repair or replacement parts may be new or
refurbished and will be provided on an exchange basis. If AT&T determines
that your system cannot be repaired or replaced, AT&T will remove the system
and, at your option, refund the purchase price of your system, or apply the
purchase price towards the purchase of another AT&T system.
If you purchased your system directly from AT&T, AT&T will perform warranty
repair in accordance with the terms and conditions of the specific type of AT&T
maintenance coverage you selected. If you purchased your system from an
AT&T-authorized reseller, contact your reseller for the details of the
maintenance plan applicable to your system.
This AT&T limited warranty covers damage to the system caused by power
surges, including power surges due to lightning.
The following will not be deemed to impair the good working order of the
system, and AT&T will not be responsible under the limited warranty for
damages resulting from
failure to follow AT&T’s installation, operation, or maintenance
instructions
unauthorized system modification, movement, or alteration
unauthorized use of common carrier communication services accessed
through the system
abuse, misuse, or negligent acts or omissions of the customer and
persons under the customer’s control
acts of third parties and acts of God
AT&T’S OBLIGATION TO REPAIR, REPLACE, OR REFUND AS SET FORTH
ABOVE IS YOUR EXCLUSIVE REMEDY.
EXCEPT AS SPECIFICALLY SET FORTH ABOVE, AT&T, ITS AFFILIATES,
SUPPLIERS, AND AUTHORIZED RESELLERS MAKE NO WARRANTIES,
EXPRESS OR IMPLIED, AND SPECIFICALLY DISCLAIM ANY WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
xviii Customer Support Information