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Partner II
Installing the Attendant
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Quick Reference Manual
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AT&T Partner II User Manual

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Page 1
AT&T
PARTNER® II
Communications System
Release 1
Installation and Use
Centrex
Page 2
Page 3
Contents
About This Guide
1
2
Overview
■
Terminology
■
Using Premises Equipment to Complement Centrex Services
■
Primary and Secondary Lines
■
Features and Capabilities Premises Equipment
■
Installing the Equipment
Important Safety Instructions
■
■
Terminology
■
Installation Guidelines
■
Example Configuration
■
Installation Procedures
■
Equipment Upgrades
v
1-i 1-1
1-3 1-5 1-6 1-7
2-i
2-ii
2-1 2-3 2-6 2-8 2-14
3
4
Using the Equipment with Centrex Services
■
Overview
■
Terminology
■
Centrex Line Assignments and Ringing
■
Centrex Services
■
One-Touch Access to Centrex Services
Decisions for Customizing Your System
■
Overview
■
Terminology Call Coverage Options■
■
One-Touch Access to Equipment Features
■
Optional Features for Premises Equipment
■
Auxiliary Equipment
■
Identifying the Equipment Features You Need
3-i 3-1 3-2 3-3 3-5 3-6
4-i 4-1 4-2 4-3 4-10 4-13 4-22 4-24
Contents
i
Page 4
5
Programming Reference
Alphabetical List of System and Telephone
■
Programming Procedures Overview
■
■
Terminology
■ System Programming Procedures
■
Telephone Programming Procedures
■
Changing Settings after Installation
■
System Programming Reference
■
System Speed Dial Programming Reference
■ Telephone Programming Reference
5-i
5-ii 5-1
5-2 5-3 5-4 5-7 5-10 5-14 5-15
6
7
A
Using Telephones
Overview
■
■
Terminology
■
MLS- and MLC-Model Telephones
■
Standard Telephones
■
Combination Extensions
■
Equipment Features
■
Using Your Telephone
Using Auxiliary Equipment
■
Terminology
■
Fax Machines
■
Answering Machines
■
Modems
■
Credit Card Scanners
■
Call Reporting Devices (SMDR)
User Forms
Form A: Speed Dial Numbers
■
■
Form B: Centrex Extension Numbers
6-i 6-1 6-1 6-2 6-7 6-9 6-10 6-12
7-i 7-1 7-1 7-5 7-6 7-7 7-7
A-1 A-2 A-3
B
ii
Contents
Using Intercom Features
■
Using the Intercom on MLS- and MLC-Model
Telephones
■
Using Intercom Calling Features
B-1
B-1 B-3
Page 5
C
Maintenance and Customer Support
■ Maintenance
■
In Case of Difficulty
■
Repair Information
■
AT&T Limited Warranty and Limitation of Liability
■
Product Ordering Information
C-1 C-1 C-2 C-9
C-9 C-11
D
E
GL
IN
Specifications
FCC Information
■
Federal Communications Commission (FCC) Interference Information
Feedback Form
Glossary
Index
Programming Quick Reference
D-1
E-1
E-1
GL-1
IN-1
Inside back cover
Contents
iii
Page 6

About This Guide

Purpose

The system described in this guide consists of premises equipment and Centrex services. Although the terms “premises equipment,” “Centrex services,” and
“system” have broader meanings elsewhere, this guide uses those terms to
refer specifically to the following definitions:
Premises equipment
■
refers to the AT&T equipment controller and MLS­and MLC-model telephones that you purchased as part of your Partner® II Centrex Communications System, plus all other telecommunications devices connected to your equipment controller. This equipment is installed at your place of business.
■
Centrex services
include the Centrex lines that are connected to the
equipment controller and the features available on those Centrex lines.
These services (which may be offered in your area under a different name
such as ESSX,® CENTRON,® or Plexar®) must be arranged for separately with your local telephone company.
■
System
refers to the combination of premises equipment and Centrex
services described above.
The main purpose of this guide is to provide instructions for installing,
programming, and using your premises equipment. Because the selection of services available from the local phone companies continually expands and changes—to keep pace with the needs of businesses and with technological advances in the world of communications—this guide does not provide detailed information about Centrex services. For specific information about your Centrex services, see the Centrex documentation provided by your local telephone company.
About This Guide
v
Page 7
Page 8

How to Use This Guide

This guide provides instructions and advice on the following topics:
■
Installation.
Chapters 1 and 2 and Appendix D, which provide an overview of the system, instructions for equipment installation, and equipment specifications.
If your company already has modular jacks for all outside lines and extensions, you may be able to use the existing wiring to install the equipment controller and connect telephones yourself (see Chapter 2). If you prefer to have an AT&T service technician install and customize your premises equipment, call 1 800 247-7000 (in the U.S. only) or your AT&T authorized dealer.
Your system can include a wide variety of auxiliary equipment, including fax machines, modems, answering machines, credit card scanners, and call reporting (SMDR) devices. See Chapter 7 for advice on setting up these industry-standard devices to work effectively with your system.
■
Setup Decisions.
familiarize yourself with the features provided by your equipment controller, to learn how to program the equipment controller and individual phones, and to learn how to handle calls.
If you are installing the system for the first time, read
If you are a new user, read Chapters 1, 3, 4, and 6, to
Chapter 3 explains how your equipment controller complements Centrex services, providing a variety of features that support Centrex capabilities and making it easy for you to access Centrex features. Chapter 4 helps you make decisions about customizing the premises equipment, to use additional features and capabilities provided by your equipment. Chapter 6 provides call-handling instructions for standard phones and for MLS- or MLC-model phones.
■
Programming.
Chapter 5 gives step-by-step instructions for all of the programming procedures for your premises equipment. You can use the information in this chapter as a reference, to help you carry out your decisions about customizing your premises equipment.
■
Making Changes.
If you need to reprogram the premises equipment or individual extensions, see Chapter 5, “Programming Reference,” or the Programming Quick Reference pages at the back of this book.
If you are adding equipment to your system, see Chapter 2, “Installing the Equipment,” Chapter 5, “Programming Reference,” and Chapter 7, “Using Auxiliary Equipment.”
■
Training Co-Workers.
Chapter 6 explains how to handle calls and use equipment features effectively. To help users get the most out of their phones, give each telephone user a Quick Reference card and filled-in copies of the “Speed Dial Numbers” form in the System Planner or Appendix A of this book.
About This Guide
vii
Page 9
Before training co-workers, read Appendix B to decide whether to make intercom calling features available to telephone users. (These equipment features require that users know the jack numbers where lines and extensions are connected to the equipment controller.) In addition, panels 6 and 7 of the Quick Reference card present intercom calling features.
■
Solving Problems.
problems and ordering additional accessories and equipment. If your premises equipment malfunctions, you may be able to solve the problem by following the steps provided in “Troubleshooting,” starting on page C-3.
■
Daily Operation.
need to oversee some of the system’s daily operations. For example, if
you use the Night Service feature available with your equipment controller, you will need to turn on Night Service at the end of each day before leaving the office. (See “Using Night Service” on page 6-18.)
Once you are experienced with the system, use the Table of Contents or Index to locate the information you need.

Product Safety Labels

This book contains several product safety statements, identified by a
Appendix C provides information on solving
Depending on how your system is set up, you may
CAUTION:
Indicates the presence of a hazard that will or can cause minor personal
injury or property damage if the hazard is not avoided.
WARNING:
Indicates the presence of a hazard that can cause severe or fatal
personal injury if the hazard is not avoided.
Carefully read the
equipment modules or backplane will expose you to hazardous voltages, which can cause severe personal injury or death. Also, read “Important Safety
Instructions” on page 2-ii before performing any installation procedures.

Reference Materials

The following reference materials are available to help you install, program, and
use the premises equipment. To order them, call the AT&T Customer Information Center (1 800 432-6600 in the U.S. or 1 800 255-1242 in Canada).
The order numbers are in parentheses:
■
Installation and Use (518-455-330) provides instructions for installing, programming, and using the premises equipment.
■
Quick Reference for Use with MLS-Series Telephones (518-455-331, package of 6) contains basic instructions for using MLS-model telephones.
WARNING
statement on page 2-9. Opening the
viii
About This Guide
Page 10
■
MLC-6 Cordless Telephone: Installation and Troubleshooting
(999-506-143) explains how to install the MLC-6 cordless telephone and how to solve any problems that might occur when using it with your system.
■
MLC-6 Cordless Telephone Quick Reference: Display and Controls
(999-506-146) explains how to use the MLC-6 cordless telephone with your system.
In addition, a System Planner (GBS-124) provides forms that you should use
before you install your system—to determine your system configuration—and on an ongoing basis—to make sure that you have a current record of all the programming for your premises equipment. You can order the Planner from AT&T Forms Services at 1 800 367-6487.

How to Comment on This Guide

A feedback form is located at the end of this guide, after the appendixes. Use that form to send AT&T your comments on the product or this guide, or send your comments and recommendations for changes to:
A. Sherwood AT&T 99 Jefferson Road (Room 2A-25) Parsippany, NJ 07054 (FAX 201 887-6898)
About This Guide
ix
Page 11

Overview

Contents
1
Terminology Using Premises Equipment to Complement
Centrex Services Primary and Secondary Lines Features and Capabilities Premises Equipment
■
Equipment Controller
Modules Capacity
■
MLS- and MLC-Model Telephones
■
Auxiliary Equipment
Industry-Standard Devices Other Devices
1-1
1-3 1-5 1-6 1-7
1-8 1-8 1-8 1-9 1-9 1-10 1-11
Overview
1-i
Page 12
Overview

Terminology

The following terms are used in this chapter. In addition, you may wish to review the “Terminology” section of “About This Guide,” which defines basic terms used throughout this guide, or the Glossary, which defines all terms.
1
Auto Dial button
Auxiliary equipment
Centrex
Centrex
extension number
Centrex system
A programmable telephone button that lets you dial a series of digits simply by pressing that button. An Auto Dial button can be used to store a Centrex feature code or a telephone
number so that it can be dialed with one touch.
Telecommunications equipment (other than MLS- and
MLC-model telephones) that can be connected to the
equipment controller. Auxiliary equipment includes
industry-standard devices that can connect directly to the
public telephone network (such as standard phones or fax machines) as well as devices that require the interface provided by the equipment controller (such as a loudspeaker
paging system). Telephone services that your local telephone company
provides from a Central Office (CO) located outside your business premises, including Centrex lines connected to the equipment controller and the features available on those lines. (Your telephone company may call Centrex by another name.)
A short code (or “Centrex extension ID”) that can be used to dial another extension within the Centrex system. Typically, this is the last digits of the Centrex telephone number.
The total block of Centrex lines you subscribe to—all or some of which may be connected to the equipment controller for your system—together with the Centrex services associated with those lines.
Overview
1-1
Page 13
Equipment Controller
The AT&T product that you purchased as part of your system. This product consists of a group of modules that connect Centrex lines coming into your building to the extensions in your system. The equipment controller also provides equipment features.
Equipment feature
Equipment feature button
Extension Extension jack
Feature phone
Intercom call
Premises
equipment
A feature provided by your equipment controller (as opposed
to a service provided by Centrex).
A programmable telephone button on an MLS- or MLC-model
telephone that enables you to access an equipment feature
with one touch, simply by pressing the button. See also Auto Dial button and Programmable button.
A destination in the system that can be dialed.
The location on 206 modules that allows you to connect
phones (or other telecommunications devices) to the
equipment controller.
An industry-standard phone that includes programmable buttons or other built-in features.
A call that is made using the [
Intercom
] button on an MLS- or MLC-model telephone, to call another system extension without tying up primary Centrex lines.
The AT&T equipment controller and MLS- and MLC-model telephones that you purchased as part of your system, plus
all other telecommunications devices that are connected to
your equipment controller. For purposes of this guide,
premises equipment does not include any equipment that
connects directly to Centrex lines without going through the equipment controller. See also System and Centrex system.
Primary line
Programmable button
Secondary line
Standard phone
1-2 Overview
The main Centrex line assigned to an extension, generally
used to place and receive all calls for that extension. When a
caller dials a phone number, the call rings immediately at the extension where the line is assigned as a primary line (unless
line ringing is changed to let another extension screen calls
on the line). See also Secondary line. A telephone button that can be set up to access a feature.
On MLS- and MLC-model phones, programmable buttons can be used as Auto Dial buttons (for one-touch dialing of Centrex feature codes or telephone numbers) or equipment feature buttons.
A line assigned to an extension for call coverage purposes,
generally with delayed or no ringing. When a call comes in
on the line, it rings first at the extension where it is assigned
as the primary line; only if there is no answer does it ring at
the extension where it is a secondary line. See also Primary
line. An industry-standard touch-tone or rotary phone such as you
might have in your home. Some standard phones include
special feature buttons for frequently-used calling functions.
Page 14
System
Your premises equipment, in combination with the Centrex lines that are connected to your equipment controller and the Centrex services that are available on those lines. See also Centrex system and Premises equipment.
Using Premises Equipment
to Complement Centrex Services
The system discussed in this guide consists of two elements: Centrex services (including Centrex lines and associated features) and premises equipment (including the equipment controller, MLS- and MLC-model telephones, and other telecommunications devices connected to the controller).
The Centrex services you receive from your local telephone company provide a unified telephone network for your business, even across different geographical locations, and give you services customized for your needs.
NOTE:
Your telephone company may offer Centrex services under a different name (for example, ESSX,® CENTRON,® or Plexar®). Also, you may be able to select different services for different lines. (For more information, see the Centrex documentation provided by your local telephone company.)
Your AT&T premises equipment is designed to complement the advantages offered by Centrex. All or some of your Centrex lines may be connected to the equipment controller. You can connect a maximum of 24 Centrex lines and 24 extensions to your equipment controller. Figure 1-1 shows an example in which some Centrex lines are connected to the equipment controller and some are not
Public Phone
Network
Your Centrex System
Your System
555-1000
Equipment
Controller
555-1001
555-1002
Figure 1-1. Your Centrex System
555-1003
555-1004
Centrex
Central
Office
555-1005
Overview
1-3
Page 15
Any Centrex lines that are not connected to the equipment controller, while they are part of the larger Centrex system, are not considered to be part of the system described in this guide. For example, a hospital might subscribe to a large block of Centrex lines, but connect only the lines for administrative personnel to the equipment controller. In this situation, the telephones for administrative personnel would be managed by the equipment controller as a distinct system within the larger Centrex system.
One of the most important Centrex features is the assignment of one Centrex line for each extension in your system. This allows a caller to reach an extension directly, simply by dialing the extension’s phone number, as shown in Figure 1-2. The call rings at the extension immediately, so you do not need to have a receptionist who answers calls for all system extensions and then transfers each call to the appropriate user.
Caller dials 555-1002
555-1000
Equipment
Controller
555-1001
Public Phone
Network
555-1003 555-1004
Ringing
Centrex Central
Office
555-1005
Figure 1-2. Dialing a System Extension
The equipment controller complements Centrex by automatically assigning a primary line to each extension (see “Primary and Secondary Lines” on the next page), and by passing Centrex ringing patterns through to phones. (The major benefits provided by your equipment controller and the AT&T phones that you
connect to it are discussed in “Features and Capabilities” on page 1-6; in addition, Chapter 3 provides a more detailed discussion of the way your premises equipment and Centrex services work together.)
The equipment controller also provides optional features, some of which may be similar to Centrex services you have. (Optional equipment features are listed at the end of Chapter 4 in this guide.) If you have similar features available from Centrex and from the equipment controller, you should use the Centrex features.
NOTE:
The System Planner, available separately, provides forms you can use to plan your system configuration and to identify your Centrex services. If you do not already have a copy of the System Planner, see “Reference Materials” in “About This Guide.”
1-4 Overview
Page 16

Primary and Secondary Lines

By default, each extension in your system gets one primary line that will be used to receive and place all calls for that extension. When the user at an extension picks up the handset to make an outgoing call, the primary line for the extension is automatically selected. Likewise, all incoming calls on the primary line ring immediately at the user’s phone. The primary line always appears on the bottom leftmost line button on an MLS- or MLC-model phone. Except for Hotline phones and doorphones (see page 4-23), each extension in your system has a primary Centrex line.
You can also assign secondary lines to extensions. Secondary lines are lines other than the primary line, typically assigned to a phone for call coverage purposes. Secondary lines generally use delayed ringing; when a call comes in on a line, it rings first at the extension where the line is assigned as a primary line; only after about 20 seconds does it begin ringing at an extension where it is assigned as a secondary line. Likewise, when a user picks up the handset to make an outgoing call, the extension’s primary line is selected automatically. A secondary line is selected automatically only to answer an incoming call (if the call is already ringing at your phone when you pick up the handset).
All lines are automatically assigned to the first phone connected to the equipment controller; but only the line assigned to the bottom leftmost line button on the phone is primary. All of the other lines assigned to the extension are secondary lines. (This default line arrangement provides Central Call Coverage; for more information about this and other call coverage options, see page 4-3.)
NOTE:
Secondary lines assigned to an extension are used as primary lines at other extensions. To avoid tying up another user’s primary line, callers who have secondary lines should always use their own primary lines to make outgoing calls.
Overview
1-5
Page 17

Features and Capabilities

Your equipment controller supports the following features to complement your Centrex services:
■
Multiple line assignments, permitting more flexible call coverage. For example, the equipment controller automatically assigns all lines to the first phone connected to the equipment controller, to serve as a possible receptionist’s position. In addition, you have the option of assigning secondary lines at other phones, to provide Local Call Coverage, so that a person can answer calls on a line when the line’s primary user is absent or busy. The equipment controller also passes Centrex ringing patterns through to each phone (for example, to distinguish between outside and inside calls). When a line is assigned to an MLS- or MLC-model phone, the lights on the line button let you see the activity on the line.
■
Programmable buttons on MLS- and MLC-model phones, providing one-touch access to both Centrex and equipment features). You can access a feature simply by pressing the button.
■
Easy-to-use programming procedures, making it easy for you to manage your system. You can change line assignments, call coverage arrangements, or programmable buttons, quickly and easily. (The display on an MLS-34D or MLS-12D phone provides feedback during programming.)
■
Modular connections to the equipment controller, making it easy for you to reconfigure your system or to add extensions as your system grows.
■
Direct connections for industry-standard devices—including standard phones, fax machines, answering machines, modems, and credit card scanners.
■
Optional equipment features, including paging over a loudspeaker paging system or over MLS-model phone speakers, music on hold*, call detail recording (also known as Station Message Detail Recording, or SMDR), night service operation, speed dialing, line access restrictions, and many others.
■
Power failure operation with standard phones, allowing you to make and answer calls during a power failure while retaining programmed equipment settings for up to four days. (An optional Uninterruptible Power Supply, or UPS, is also available to allow full equipment operation during a power failure.)
*
If you use equipment that rebroadcasts music or other copyrighted materials, you may be required to obtain a license from a third party such as ASCAP or BMI. Or, you can purchase a Magic on Hold® device from AT&T that does not require you to obtain such a license.
1-6 Overview
Page 18

Premises Equipment

Figure 1-3 shows an equipment controller and MLS- and MLC-model telephones connected to it. A brief description of each component follows the figure.
EQUIPMENT CONTROLLER (covers not shown)
Primary
Carrier
206 Modules 400 Modules
206 Module
Circuit Breakers
Main Circuit
Breaker
Expansion
Carrier
Main Circuit
Breaker
Primary Processor Module
Line Jacks
Power Indicators
(LEDs)
Extension Jacks (206 modules only)
MUSIC ON HOLD Jack (for RCA phono plug)
PHONES
Expansion Processor
Line Jacks
PAGE Jack SMDR Jack
Expansion
Cable
MLS-12D
Display Phone
Module
Power Indicators
MLS-34D
Display Phone
(LEDs)
MLS-12 Phone
MLS-6
Phone
Wall Jacks
MLC-6
Cordless Phone
Figure 1-3. Equipment Controller and MLS/MLC-Model Telephones
Overview
1-7
Page 19

Equipment Controller

The equipment controller is the heart of your premises equipment. It is made up of one or two carriers — the plastic housing consisting of the backplane and cover. The backplane distributes power to the premises equipment, and has
slots where modules are placed; the cover slides onto the front of the backplane
after all the modules have been installed. The system must have a primary carrier for support of up to 12 lines and
extensions, and can be expanded to include an expansion carrier for support of up to 12 more lines and extensions. A fully loaded system has both carriers.
Modules
The following modules are installed in your equipment controller:
■
Primary processor module.
the components of your premises equipment. It has jacks for a music-on-hold audio source, a loudspeaker paging system, and a call reporting device (SMDR), such as a printer. The primary processor module is always installed in the center slot of the primary carrier.
■
Expansion processor module.
module extends the primary processor module’s management capabilities to the lines and extensions connected to modules in the expansion carrier. An expansion cable connects the primary processor module to the expansion processor module. This module is always
installed in the center slot of the expansion carrier.
The primary processor module manages
(optional) The expansion processor
Capacity
■
206 Modules.
Each 206 module connects a maximum of two Centrex
lines and six extensions to the equipment controller. You can connect telephones and other telecommunications devices (such as fax machines, answering machines, or modems) to the extension jacks on the 206 module (either directly or through your building’s extension jacks). Each 206 module has a green power indicator that shows it is
receiving power from the equipment controller. At least one 206 module
is required in the leftmost slot of the primary carrier.
■
400 Module.
The 400 module is similar to the 206 module, but without extension jacks. It has jacks for four Centrex lines. The 400 module is always installed to the right of a 206 module.
The number of 206 and 400 modules you install in the equipment controller
determines the number of available lines and extensions. The controller
implements the Centrex requirement of one line for each extension. Therefore, when you install a 400 module (four lines) next to a 206 module (two lines, six extensions) in a carrier, the combined pair provides an equal number (six) of
lines and extensions. For the maximum number of lines and extensions in a two-carrier configuration, pair four 206 modules with four 400 modules—for a total of 24 lines and 24 extensions.
1-8
Overview
Page 20

MLS- and MLC-Model Telephones

AT&T MLS- and MLC-model telephones are designed to make maximum use of the features provided by your system. The following models are available for use with your system:
■
AT&T MLS-34D Telephone.
used by the system manager (for equipment programming), receptionist, or operator. It has 32 buttons that can be used for outside lines or programmed for one-touch access to features. It also has a built-in speaker and microphone (for dialing and having a conversation without lifting the handset) and a large character display that shows the following:
■
Current date, day, and time
■
Number you dialed and elapsed time (when you make a call)
■
Prompts and messages.
■
AT&T MLS-12D Telephone.
for outside lines or programmed for one-touch access to features (and 6 more buttons without lights that can only be used for programmable features). It has a built-in speaker and microphone, and a display similar to the one on the MLS-34D telephone.
NOTE:
An MLS-34D or MLS-12D telephone is required for equipment programming. Use the MLS-12D phone only if there are no MLS-34D phones installed at the site.
■
AT&T MLS-12 Telephone.
MLS-12D telephone, but without a display.
■
AT&T MLS-6 Telephone.
outside lines or programmed for one-touch access to features. It also has a built-in speaker, but no microphone. This means that a user can dial a number without lifting the handset, but must lift the handset to speak when the party answers.
■
AT&T MLC-6 Cordless Telephone.
the MLS-6 corded telephone. It has 4 buttons that can be used for outside lines or programmed for one-touch access to features. It also includes a display that shows line status, an On/Off button that must be pressed before using the phone (to save battery power), and additional feature buttons to support cordless operation (for more information, see
MLC-6 Cordless Telephone Quick Reference: Display and Controls).
This phone has 4 buttons that can be used for
This phone is the best choice for extensions
This phone has 10 buttons that can be used
This telephone has all the features of the
This cordless telephone works like

Auxiliary Equipment

The premises equipment works with many telecommunications devices, not only
MLS- and MLC-model telephones. You can connect industry-standard devices to your equipment controller, and certain models of other devices, all without expensive adapters.
Overview
1-9
Page 21
Industry-Standard Devices
Many industry-standard, single-line telecommunications devices will work with
the equipment controller:
■
Standard touch-tone, rotary, and cordless telephones (such as those you
might have in your home), including feature phones with built-in feature buttons and lights
■
Fax machines
■
Answering machines
■
Modems
■
Credit card scanners.
Limitations
You can connect standard devices to your equipment controller, regardless of the manufacturer. The following limitations apply:
■
The device must be industry-standard and non-proprietary. That is, it cannot be made specifically for use on a particular telephone system. (For example, you cannot connect an AT&T MERLIN® phone, because it is specifically designed for use on a MERLIN system.)
NOTE:
You
can connect a multiple-line device to the equipment controller, but for best
results it should be installed and used as if it were a single-line device.
■
The device’s Ringer Equivalence Number (REN*) cannot be greater than
2.0. (The REN is shown on a label on the device, usually on the bottom.)
Connecting and Using Standard Devices
You can connect a standard device so that it is on an extension by itself, or so that it shares an extension with another piece of equipment (either another standard device or an MLS- or MLC-model phone). An extension with two
devices connected to it is called a combination extension. For example, you
can connect an MLS-model phone and a standard phone to the same
extension, so that the standard phone can be used to place and receive calls in the event of a power failure. To connect two devices on one extension, you need an inexpensive AT&T 267F2 bridging adapter (two are provided with each 206 module).
Chapter 2 explains how to connect standard devices to the equipment controller and how to combine them on a single extension. (See page 2-5 for installation instructions for combination extensions.) For additional information on programming and using fax machines, answering machines, modems, or credit card scanners, see Chapter 7.
*
REN is a measure of the power it takes to ring a phone. A typical home phone line handles 4.0–5.0 RENs; each extension jack in your equipment controller can handle 2.0 RENs.
1-10
Overview
Page 22
Other Devices
You can connect other devices to your equipment controller, but only specific
models are compatible with the equipment controller. (See Appendix C for
product ordering information.)
■
■
■
■
Call accounting devices and printers
allow the system manager to print call reports. The call accounting device or printer connects directly to the primary processor module in the primary carrier. See “Call Reporting Devices (SMDR)” on page 7-7 for more information.
Doorphones
allow visitors to alert up to five extensions at once by pressing a button on the doorphone; the person who answers a doorphone call can then use the phone to speak to the visitor at the doorphone. The equipment controller supports up to two proprietary doorphones, which can be installed indoors or outdoors. A doorphone is especially useful for providing access to offices or departments after hours. For example, you can install a doorphone outside your building entrance to allow visitors to alert telephones inside the building when the receptionist is not there and the front door is locked.
Loudspeaker paging systems
allow you to broadcast a message over a large area, by connecting the paging system directly to the PAGE jack on the primary processor module. The equipment controller supports all AT&T paging systems. For information on how to use a loudspeaker paging system with the equipment controller, see page 6-17.
Music-on-hold systems
allow you to play recorded music to callers while they are on hold, by connecting the music-on-hold system to the primary processor module. The equipment controller supports the AT&T Magic on Hold system and most models from other manufacturers.
■
Extra alerts
are strobes, lights, chimes, horns, or bells that light or ring when calls come in. For example, you can use an audible alert (chime, horn, or bell) to replace a phone ring in a noisy area, such as a factory. Similarly, you can use a visual alert (strobe or light) to replace a phone ring in a quiet area, such as a library.
■
Electromagnetic Interference (EMI) filters
allow you to block “noise” generated by a nearby radio station, as well as most electrical devices. The equipment controller supports the AT&T Z300A EMI Filter.
■
Uninterruptible Power Supply (UPS)
allows full equipment operation during a power failure. The equipment controller supports the AT&T 360VA UPS.
■
In-Range Out-of-Building (IROB) protectors
are required to prevent electrical surges from damaging your equipment when phones are installed in another building, but on the same continuous property. The equipment controller supports the AT&T IROB protector, which provides coverage over a distance of 3,000 feet for standard phones and 1,000 feet for MLS- and MLC-model phones. (For installation instructions, refer to the booklet packaged with the IROB protector.)
Overview
1-11
Page 23
■
Speakerphones
provide hands-free two-way operation of a phone
without lifting the handset. Combining a speakerphone with an MLS-model phone or a standard phone on an extension in a conference room or office is an inexpensive way for several people at a meeting to conference with other parties. The equipment controller supports the AT&T S203 speakerphone. (MLS-model phones have built-in speakers, but they are designed for individual—not group—use.)
■
Repertory dialers
allow you to store frequently-used numbers for one-touch dialing (Auto Dialing). If a user needs many Auto Dial numbers, a repertory dialer can be combined on an extension with an MLS- or MLC-model phone or standard phone.
■
Headsets
allow users to hold private, hands-free conversations. A headset is a combination earphone and microphone worn on the head, useful for receptionists, salespeople, or others who need to have their hands free while talking on the phone. AT&T offers several compatible headsets.
■
Handsets for the hard-of-hearing
are designed for users who need even more amplification than is provided by the volume controls on MLS­and MLC-model phones. Although the volume controls on MLS- and MLC-model phones significantly reduce the need for an amplified handset, hard-of-hearing users may find that the AT&T K6S handset meets their needs.
1-12
Overview
Page 24

Installing the Equipment

Contents
2
Important Safety Instructions
■
Additional Safety Instructions for Installation Personnel
Terminology Installation Guidelines
■
Placement of Carriers and Modules
■
Connection of Telephones and Devices
Combination Extensions
Example Configuration Installation Procedures
■
Required Parts
■
Installing the Carriers and Modules
■
Connecting Lines and Extensions
■
Assembling MLS-Model Telephones
Desk Mounting Wall Mounting
■
Connecting and Testing Telephones
■
Connecting Doorphones and Hotline Phones
■
Connecting Paging, Call Reporting (SMDR), and Music-on-Hold Devices
Equipment Upgrades
■
Adding New Modules
■
Replacing a Module
2-ii
2-ii 2-1 2-3
2-3 2-4 2-5
2-6 2-8
2-8 2-9 2-10
2-11 2-11 2-11 2-12 2-12
2-13 2-14
2-14
2-14
Installing the Equipment
2-i
Page 25

Important Safety Instructions

Always follow these basic safety precautions when using the premises
equipment:
1.
Read and understand all instructions. Follow all warnings and instructions marked on the product.
2. DO NOT block or cover the ventilation slots and openings. They
3. prevent the product from overheating. DO NOT place the product in a separate enclosure, unless proper ventilation is provided.
4.
Never spill liquid on the product or drop objects into the ventilation slots and openings. Doing so may result in serious damage to the components.
Repair or service must be performed by a qualified repair person.
5. The product is provided with a three-wire grounding type plug. This is
6. a safety feature. DO NOT defeat the safety purpose of the grounding type plug. DO NOT staple or otherwise attach the AC power supply cord to building surfaces.
DO NOT use the product near water or in a wet or damp place (such as
7. a wet basement).

Additional Safety Instructions for Installation Personnel

DO NOT install telephone wiring during a lightning storm.
1. DO NOT install telephone jacks in a wet location unless the jack is
2. specifically designed for wet locations.
Never touch uninsulated telephone wires or terminals, unless the
3. telephone line has been disconnected at the network interface.
4.
Use caution when installing or modifying telephone lines.
The equipment carriers must be securely wall mounted.
5.
CAUTION:
If any wiring from the extension jacks leaves the building premises, you must install AT&T IROB protectors (see “Requirements for Out-of-Building Extensions,” page D-2).
CAUTION:
Use only AT&T-manufactured modules in the equipment controller.
CAUTION:
Environmental and electrical conditions must meet the specifications in Appendix D.
SAVE THESE INSTRUCTIONS
2-ii
Installing the Equipment
Page 26
Installing the Equipment
This chapter explains how to install the premises equipment. It begins with general guidelines to consider before installation, followed by an example configuration. It ends with step-by-step instructions for connecting and testing the components.
IMPORTANT:
Before installation you should review Forms A and B of the System Planner to identify the type of equipment that should be connected to the extension jacks
for your system.
2

Terminology

The following terms are used in this chapter. In addition, you may wish to review the “Terminology” section of “About This Guide, ” which defines basic terms
used throughout this guide, or the Glossary, which defines all terms.
Backplane
Carrier
Combination extension
The bottom and rear portion of the plastic housing that makes up a carrier. The backplane distributes power to the premises equipment, and has slots where the modules are installed.
Molded plastic housing, made up of a backplane and cover, which holds the equipment controller modules. Your configuration contains at least the primary carrier and can be expanded to include an expansion carrier.
An extension that has two devices connected to it using a special connector called a bridging adapter. Combination extensions can connect two industry-standard devices or an industry-standard device and an MLS- or MLC-model phone, but not two MLS- or MLC-model phones.
Installing the Equipment
2-1
Page 27
Equipment
Controller
The AT&T product that you purchased as part of your system. This product consists of a group of modules that connect Centrex lines coming into your building to the extensions in your system. The equipment controller also provides equipment features.
Expansion
carrier
Expansion processor module
Extension jack
Extension jack number
400 Module
Line jack
The optional component of the AT&T equipment controller that can be connected to the primary carrier to expand your system’s line and extension capacity. See also Primary carrier.
The main module of the expansion carrier, which must be installed in the center slot of the expansion carrier. This AT&T module extends the primary carrier’s management capabilities to the 206 and 400 modules installed in the expansion carrier. See also Primary processor module.
The location on 206 modules that allows you to connect phones (or other telecommunications devices) to the equipment controller.
The number assigned to each extension jack on a 206 module. Extension jack numbers run consecutively from 10 through 33 (for a two-carrier configuration).
The AT&T equipment component that contains jacks for connecting up to four Centrex lines to the equipment controller.
The location on 206 and 400 modules that allows you to connect Centrex lines to the equipment controller.
Line jack number
Network interface jack
Premises equipment
Primary carrier
The number assigned to each line jack on a 206 or 400 module. Line jack numbers run consecutively from 01 through 24 (for a two-carrier configuration).
A jack, generally located in your equipment room, that provides access to a Centrex line coming into your building from your local telephone company. A telephone cord from the network interface jack to a line jack on a 206 or 400 module connects the Centrex line to your system.
The AT&T equipment controller and MLS- and MLC-model telephones that you purchased as part of your system, plus all other telecommunications devices that are connected to your equipment controller. For purposes of this guide, premises equipment does not include any equipment that connects directly to Centrex lines without going through the equipment controller.
The required component of the AT&T equipment controller that contains the primary processor module and up to two 206 and two 400 modules. This provides for connection of up to 12 lines and 12 extensions. See also Expansion carrier.
2-2
Installing the Equipment
Page 28
Primary processor module
This AT&T module, which is always installed in the center slot of the primary carrier, manages the components of your premises equipment. See also Expansion processor module.
206 Module
The AT&T equipment component that contains jacks for connecting up to two Centrex lines and up to six extensions to the equipment controller.

Installation Guidelines

In this chapter, we refer to line jacks and extension jacks; these terms describe the locations where connections are made to the equipment controller. During installation, each Centrex line is connected to a line jack on the controller. In addition, each phone (or optional device) is connected to an extension jack on the controller (either directly or via a wall jack). Once connections are made, the controller associates each line jack (numbered consecutively from 01 through 24) with a specific extension jack (numbered consecutively from 10 through 33). Each Centrex line is the primary line for the phone at the corresponding extension. (Refer to Form B in the System Planner, which records how your phone numbers are assigned to system extensions.)

Placement of Carriers and Modules

■
Carriers.
the number of lines you have (see “Capacity,” on page 1-8). If you are going to install the expansion carrier, plan to install it to the right of the primary carrier. Install the backplane(s) within five feet of the network
interface jacks and a grounded 110 VAC electrical outlet not controlled by a switch. If you are installing two carriers, both must be plugged into the same power outlet. In addition, when you mount the backplane(s) on the wall, leave at least six inches of clearance at the top and sides, and two feet at the front and bottom.
You will be installing either one or two carriers, depending on
■
Modules.
■
Install the primary processor module in the center slot of the primary
To install modules, follow the rules below:
carrier.
■
If you are installing the expansion carrier, install the expansion processor module in its center slot.
■
The first (leftmost) slot in each carrier must contain a 206 module.
■
Do not skip slots when installing 206 and 400 modules.
■
A 400 module must be installed to the right of each 206 module (except the last 400 module, which can be skipped if you do not need the additional lines).
■
If a second 206 module is installed in a carrier, it must be installed to the right of the processor module.
Figure 2-1 shows the two carriers, with line and extension jacks numbered, for a configuration containing 24 lines and 24 extensions. For a detailed explanation of line and extension jack numbering, see Chapter 3.
Installing the Equipment
2-3
Page 29
Primary
Carrier
Extension
Jacks
Primary
Processor
Module
Expansion Processor
Module
Expansion
Carrier
Line Jacks
206
400
206
400
206 400
206 400
Figure 2-1. Line and Extension Numbering at the Equipment Controller

Connection of Telephones and Devices

You can connect the following telephones and devices to the equipment controller:
■
MLS- and MLC-Model Phones.
least two-pair wiring and are compatible with AT&T four-pair SYSTIMAX™ wiring. If you need a shorter cord for wall mounting, use AT&T’s two-foot D4BU-29 mounting cord (available separately—see page C-12). An MLS-34D phone connected to extension jack 10 or 11 is used for System Programming. Use an MLS-12D phone for System Programming only if there are no MLS-34D phones installed at your business site.
■
Industry-Standard Devices.
standard phones) require one-pair mounting cords; AT&T D2R mounting cords are recommended.
■
Standard Phones.
Connect standard touch-tone or rotary phones to the equipment controller for: —
Power Failure Operation.
MLC-model phones will not work because they require power to operate. However, if standard phones are connected to extension jacks 10, 16, 22, or 28, they can place and answer calls on lines at
line jacks 01, 07, 13, or 19, respectively. Connect a standard
phone to one or more of these extensions, either alone or combined with an MLS- or MLC-model phone. (If you combine a standard phone and an MLS- or MLC-model phone on one extension, you may want to turn off the standard phone’s ringer during normal use.)
MLS- and MLC-model phones require at
Industry-standard equipment (including
During a power failure, MLS and
2-4
Installing the Equipment
Page 30
Hotline Phones.
A Hotline phone should be a standard phone—not an MLS or MLC-model phone—but can ring any type of phone. You can specify one alert extension for each Hotline phone, and you can install multiple Hotline phones, if you wish. A Hotline phone only requires connection to an available extension
jack (with no Centrex line assigned to the extension). To simplify
programming, we recommend installing Hotline phones and
doorphones on the last available extension jacks on the last
installed 206 module in the equipment controller (if the last module in the equipment controller is a 206 module with no corresponding
400 module, the last four extension jacks will not have Centrex
lines assigned to them by default).
■
Auxiliary Equipment.
There area variety of ways to set up fax machines, modems, and answering machines to work with the equipment controller. See Chapter 7 for advice on using this equipment. To connect a telephone and a fax on the same extension, see “Combination Extensions” below.
■
Doorphones.
You can connect up to two proprietary doorphones to the equipment controller. Like Hotline phones, doorphones only require connection to an available extension jack (with no Centrex line assigned to the extension). To simplify programming, we recommend installing doorphones and Hotline phones on the last available extension jacks on the last installed 206 module in the equipment controller (if the last module in the equipment controller is a 206 module with no corresponding 400 module, the last four extension jacks will not have Centrex lines assigned to them by default).
■
Call Reporting Devices.
the SMDR jack on the primary processor module for recording call activity. (See “Call Reporting Devices (SMDR)” on page 7-7 for more information.)
■
In-Range Out-of-Building Protectors.
building from the equipment controller requires AT&T In-Range Out-of-Building (IROB) protectors, to prevent damage due to lightning (installation instructions are included with the protector).
Combination Extensions
You can connect a standard device (such as a standard phone or a fax machine) on an extension by itself, or you can use an AT&T 267F2 bridging adapter (only) to combine the standard device with another standard device or an MLS- or MLC-model phone at one extension jack. You cannot install two MLS- or MLC-model phones on the same extension, and the combined REN of two devices on an extension must be no more than 2.0. Figure 2-2 shows how to connect the two devices to the bridging adapter at a combination extension,
Standard Device Only
System Phone or Standard Device
You can connect a call accounting device to
Installing phones in a different
AT&T
267F2
Adapter
Wall Jack
Figure 2-2. Connecting Two Devices on One Extension
Installing the Equipment
2-5
Page 31

Example Configuration

These two pages show an equipment controller with three 206 modules and three 400 modules, giving this particular configuration a capacity of 16 lines and 18 extensions. Note that two of the extensions are a Hotline phone and a doorphone, which do not use primary lines. Although your
configuration may differ, this example shows various devices connected to 10 of the 18 extensions. The circled numbers in the figure refer to the following list, which gives a brief description of the equipment components.
Equipment Controller
The equipment controller in this example contains both the primary and the expansion carriers, plus these components:
Backplanes. The backplanes distribute power to the premises equipment and connect the modules.
206 Modules. Each 206 module has jacks for two lines and six extensions.
400 Modules. Each 400 module provides four line
jacks but no extensions. Notice that each 400 module
is installed to the right of a 206 module.
Primary Processor Module. The primary processor module manages the components connected to the equipment controller. The following auxiliary equipment jacks are on the processor module:
■
PAGE. A loudspeaker paging system plugs directly into this modular jack. The premises equipment is compatible with any AT&T paging system, including the AT&T PagePac6® Plus shown here.
■
SMDR. A call accounting device or printer connects to this jack using an AT&T 355A or 355AF adapter. AT&T’s 572 serial printer is shown here.
■
MUSIC ON HOLD. An AT&T Magic on Hold® system is connected to this jack to provide custom­ized music and messages for callers on hold. Other types of audio equipment (including a CD player, cassette player, or stereo receiver) can be connected with an audio cord and RCA phono plug.
Expansion Processor Module. The expansion processor module extends the primary processor module’s management capabilities to the modules in the expansion carrier.
Line Jacks. All four jacks on each 400 module and the top two jacks on each 206 module connect to Centrex lines.
Extension Jacks. Inside wiring for telephones and other telecommunications equipment connects to the bottom six jacks on each 206 module.
Network Interface Jacks. These jacks provide access to Centrex lines. Each Centrex line is connected to the equipment controller by plugging one end of the telephone Iine cord into one of these jacks, and the other end into a line jack on a 206 or 400 module.
Expansion Cable. The expansion cable connects the primary processor module to the expansion processor
module.
Extensions
This example shows MLS- and MLC-model phones and
industry-standard devices connected to the extension jacks in the equipment controller by way of the building’s inside
wiring.
Extension Jack 10: These devices are connected:
■
MLS-34D Display Phone. Typically, the receptionist on extension 10, called the primary programming extension, has an MLS-34D phone.
■
AT&T 267F2 Bridging Adapter. This adapter permits the connection of two devices—in this example a standard touch-tone phone and an
MLS-34D phone—on one extension jack. This is called a combination extension. (You cannot connect two MLS- or MLC-model phones.)
■
Standard Phone.
extension jack 10 will not work during a power failure; therefore, the receptionist can use the
standard phone.
Extension Jack 11: MLS-34D Display Phone.
Another MLS-34D is connected to extension jack 11, or the backup programming extension. You can program the premises equipment from this extension while the
phone at extension jack 10 is free to handle calls.
NOTE:
An MLS-34D or MLS-12D is required for programming at extension jack 10 or 11, or both. Use an MLS-12D only if there are no MLS-34D phones installed at your site.
Extension Jack 12: Fax Machine and Standard Phone. A fax machine and standard phone are
connected together on this extension. This setup lets you share the fax line with a telephone. Alternatively, you can use an MLS- or MLC-model phone at another extension to monitor the fax machine (see page 7-2).
Extension Jack 13: MLS-12D Phone and Bell.
bell, to provide loud ringing in a noisy area, is combined with an MLS-12 phone.
Extension Jack 14: MLS-12 Phone. This phone is similar to the MLS-12D telephone (see extension jack
13), but it has no display.
Extension Jack 15: MLS-6 Phone and Answering Machine. An MLS-6 phone and an answering machine
are connected to this extension. (See page 7-5). Extension Jack 16: Standard Phone. A standard
touch-tone phone (such as you might have in your home) is connected to this extension jack.
Extension Jack 17: MLC-6 Cordless Phone. An AT&T MLC-6 cordless telephone is connected to this extension. It works like the corded MLS-6.
Note how the Hotline phone and doorphone are connected to the last available extension jacks on the last installed 206 module in the equipment controller:
Extension Jack 26: Hotline—Standard Phone.
the handset of this phone is lifted, another phone rings. Extension Jack 27: Doorphone. A doorphone is
installed at the building entrance. When someone at the entrance presses the doorphone button, the designated extensions (five maximum) in the office alert.
The MLS-34D phone on
A loud
When
2-6
Installing the Equipment
Page 32
EQUIPMENT CONTROLLER
Line Jacks
Ext. Jacks
AT&T Magic
on Hold
®
EXTENSIONS
Primary Carrier
AT&T 572 Serial Printer
Extension Jack 10
Backplanes 206 Modules 400 Modules
Primary Processor Module (center slot)
■
PAGE Jack
■
SMDR Jack
■
MUSIC ON HOLD Jack
Expansion Processor Module (center slot)
Network Interface Jacks Expansion Cable
AT&T PagePac6
®
Plus
Line Jacks
Ext. Jacks
267F2 Bridging Adapter
Expansion Carrier
Extension Jack 17
Extension Jack 11
Extension Jack 12
267F2 Bridging Adapter
Standard Phone
Extension Jack 13
MLS-12D
Phone
MLS-34D Display Phone
Fax Machine
Bell
MLS-34D Display Phone
267F2 Bridging Adapter
Standard Phone for Power Faillure Operation
Extension Jack 14
Extension Jack 15
Personal Answering Machine
Extension Jack 16
MLS-12 Phone
267F2 Bridging Adapter
MLS-6 Phone
Standard Phone
MLC-6 Cordless Phone
Extension Jack 26
Hotline Phone
Extension Jack 27
Doorphone
Installing the Equipment
2-7
Page 33
Page 34
Installing the Carriers and Modules
Backplane
A) Hold the backplane against the
1
wall. (If you are also installing the expansion carrier, plan to install it to the right of the primary carrier, leaving 6” to 24” between carriers.) Using the four screw keyholes in the backplane as a template, mark screw locations on the wall. Start four #12 screws,
leaving the screw heads approxi-
mately 1/4” away from the wall. Slip the backplane onto the screws and tighten them. B) If you are mounting the expansion carrier, repeat this step.
Primary
Processor Module
A) Slide the primary processor mod-
2
ule into the center slot of the primary carrier backplane. Push slowly but firmly until the module locks into place with two snaps, so that it is attached to the rear of the backplane and held by the locking tab on the bottom of the slot. Do not force the module. If it does not insert easily, remove the mod­ule, clear any obstruction, and rein­sert. B) If you have an expansion carrier, slide the expansion processor
module into its center slot until the module locks into place.
206 Module
3
Slide the first 206 module into the
leftmost slot of the primary carrier
backplane. (The system will not work if a 206 module is not installed in this slot.) Going from left to right, install a 206 module first, then a 400 module. Each 400 module must be to the right of a 206 module.
WARNING:
There are no customer-serviceable components inside the modules or backplane. Hazardous voltages within. DO NOT OPEN THE MODULES!
Primary Processor Module
Expansion Processor Module
If you have installed both carriers,
4
plug the ends of the expansion cable into the two processor modules and tighten the screws. Route both ends of the cable through the hooks on the fronts of the modules.
NOTE: The colored plastic filters on the expansion cable should rest just below the hooks.
Main Circuit Breaker
Power
Jack
A) Make sure the main circuit
5
breakers on both carriers are off (pulled out). B) Press the AC power cord firmly into the power jack on the top right rear of the backplane until it
locks into place. Plug the other end of the power cord into a grounded three-prong wall outlet not controlled
by a switch. Repeat for the expansion
carrier, plugging its cord into the same wall outlet. C) Push in the main circuit
breaker for the expansion carrier first,
and then push in the main circuit
breaker on the primary carrier.
Lights
Check all green lights on the fronts
6
of the modules to make sure they are lit. If a single light is out, pull out the main circuit breakers, reseat the module, then push in the main circuit breakers (as you did in Step 5C). If multiple lights are out, check to see that the modules are installed in the right order. If they are, pull out the main circuit breakers, reseat the leftmost module of the ones that were out, then push in the main circuit breakers. If the lights are still out, call the Helpline.
Installing the Hardware
2-9
Page 35
Page 36
Assembling MLS-Model Telephones Desk Mounting (Stand Required for MLS-34D)
1
A) Plug one end of the handset
cord into the jack on the handset and
the other end into the small jack on the
left side of the base. B) For all but MLS-34D phones, plug one end of the phone cord into the big jack on the bottom of the phone; push the cord into place along the channel on the bottom
of the phone. C) To raise the phone’s
angle, go to Step 2. Otherwise, go to Step 3.
2 To install the phone stand, gently
place the phone upside down with the low end of the phone to your right.
Insert the tab on the narrow end of the stand into the right slot on the bottom of the phone. (For an MLS-34D phone, feed the cord through the stand and
plug it in.) Then insert the other tab into the left slot, pushing the stand down
and slightly inward until the tab locks
into place.
Wall Mounting (Stand Required)
A) Remove the plastic cover from
3
the phone and place a labeled button sheet on the phone so the holes on the sheet fit over the buttons. Carefully replace the plastic cover. B) Slide the Quick Reference card under the telephone.
Reverse the plastic hook that is
1
located in the earpiece part of the handset cradle.
NOTE: These wall mounting instructions apply to corded MLS­model phones only. To wall mount an MLC-6 cordless phone, follow the instructions in the booklet provided with the phone.
2
To install the telephone stand, gently place the phone upside down with the low end of the phone to your
right. Insert the tab on the narrow end
of the stand into the left slot on the
bottom of the phone. Then insert the other tab into the right slot, pushing the stand down and slightly inward until the tab locks into place.
CAUTION:
Do not unscrew the bottom of the phone. To do so will expose you to a risk of electrical shock.
A) Insert the short phone cord
3
through the center of the stand and plug
it into the jack on the bottom of the phone, then plug the other end into the modular wall jack. Mount the phone on
the wall jack using the screw keyholes
on the base of the stand. For proper mounting, the wall jack must be an
AT&T 630B connecting block. Finally,
connect the handset cord as described in “Desk Mounting,” Step 1A above. B) Remove the plastic cover from the phone and place a labelled button
sheet on the phone as in Step 3A above.
Installing the Hardware
2-11
Page 37
Page 38
Connecting Paging, Call Reporting (SMDR),
and Music-on-Hold Devices
PAGE Jack SMDR Jack
MUSIC ON HOLD
Jack
AT&T 572
Serial Printer
(optional)
Audio Source
Paging System (optional)
(optional)
Volume Control
Paging System:
To install an AT&T
paging system, insert the modular plug
for the paging system into the jack
labeled PAGE on the primary processor
module. Route the cord as for line and extension cords, then connect it to the loudspeaker paging system.
Music-on-Hold Audio Source: A) To B) To adjust volume, first use a connect an audio source, insert an RCA plug into the jack labeled MUSIC ON HOLD on the primary processor
module. Route the cord as you did for the line and extension cords, then connect it to the audio source.
Call Reporting (SMDR) Printer: To
install an AT&T 572 Serial Printer for call
reporting, insert one end a D8W
modular cord into the jack labeled
SMDR on the primary processor
module. Plug the other end into an AT&T 355AF adapter and then plug the 355AF adapter into the RS-232 serial
port on the printer. NOTE: Only the steps for connection to the equipment controller are provided
here. See Chapter 5 for instructions on activating the Music-on-Hold Jack, Chapter 6 for using the paging system, and Chapter 7 for information on call reporting. Also refer to the manufacturer’s instructions for additional information on using these devices.
flathead screwdriver to turn the volume control on the primary processor
module counter-clockwise to the lowest
setting, then connect the AC power.
Place a call on hold and listen while
adjusting volume. If you do not hear
music at any setting, check System Programming procedure #602 (see page 5-13).
Installing the Hardware
2-13
Page 39
Page 40

Using the Equipment with Centrex Services

Contents
3
Overview Terminology Centrex Line Assignments and Ringing
■
Centrex Line and Extension Numbers
■
Jack Numbers for Extensions and Lines
Centrex Services One-Touch Access to Centrex Services
Storing Centrex Feature Codes on Auto Dial Buttons
■
Storing Phone Numbers on Auto Dial Buttons
■
3-1 3-2 3-3
3-3 3-3
3-5 3-6
3-7 3-7
3-i
Page 41
Using the Equipment with Centrex Services

Overview

This chapter explains how your premises equipment works in conjunction with
your Centrex services. The following topics are discussed:
■
Line assignments and ringing
3
■
Line and extension numbering
■
Popular Centrex services
■
One-touch access to Centrex services.
When you have installed your premises equipment as described in Chapter 2,
the equipment controller sets up your system (using default or “factory” settings) to work smoothly with your Centrex services. For example, the controller automatically distributes the Centrex lines connected to your equipment controller, assigning a primary line to each system extension, and sets all primary lines for immediate ringing. This means that anyone (inside or outside the Centrex system) can dial an extension directly, simply by dialing the phone number. (See “Primary and Secondary Lines” on page 1-5 for more details.)
NOTE:
This guide describes only the operation of your premises equipment; for information on Centrex services, see the Centrex documentation provided by
your local telephone company.
If you wish to change the defaults described in this chapter, see Chapter 4 (for information on the options that are available) or Chapter 5 (for equipment programming procedures).
Using the Equipment
3-1
Page 42

Terminology

The following terms are used in this chapter. In addition, you may wish to review the “Terminology” section of “About This Guide, ” which defines basic terms
used throughout this guide, or the Glossary, which defines all terms.
Auto Dial button
Centrex extension number
Centrex
system
Centrex
telephone
number Inside call
Outside call
A programmable telephone button that lets you dial a series of digits simply by pressing that button. An Auto Dial button
can be used to store a Centrex feature code or a telephone number so that it can be dialed with one touch. See also Programmable button.
A short code (or “Centrex extension ID”) that can be used to dial another extension within the Centrex system. Typically, this is the last digits of the Centrex telephone number.
The total block of Centrex lines you subscribe to—all or some of which may be connected to the equipment controller for your system—together with the Centrex services associated with those lines. See also Premises equipment.
The phone number that outside callers dial to reach an extension within the Centrex system.
A call made from an extension inside the Centrex system to another extension inside the Centrex system, using the Centrex extension number.
A call made from outside the Centrex system to an extension within the Centrex system, or from inside the Centrex system to a number outside the Centrex system. If your Centrex system uses a dial-out code (usually a “9”), you must dial it before you dial an outside telephone number.
Premises
equipment
Programmable
button
Recall
3-2
Using the Equipment
The AT&T equipment controller and MLS- and MLC-model telephones that you purchased as part of your system, plus all other telecommunications devices that are connected to your equipment controller. For purposes of this guide, premises equipment does not include any equipment that connects directly to Centrex lines without going through the equipment controller. See also Centrex system
A telephone button that can be set up to access a feature. On MLS- and MLC-model phones, programmable buttons can be used as Auto Dial buttons (for one-touch dialing of Centrex feature codes or telephone numbers) or equipment feature buttons.
An equipment feature that sends a timed switchhook flash to let you access a Centrex service. (Use Recall only on an
outside or inside call; using Recall on an intercom call
disconnects the call.)
Page 43

Centrex Line Assignments and Ringing

Your local telephone company provides a block of Centrex lines that are used with your telephones. When you connect these lines to your equipment controller and supply electrical power, the controller automatically assigns one Centrex line to each extension. The only exception is the phone connected to extension jack 10, which is assigned all of the lines in your system, to permit a
receptionist to answer calls for users if they do not pick up immediately. (For
more information on call coverage, see “Call Coverage Options” in Chapter 4.)
By default, the primary line for an extension is set for immediate ringing and any
secondary lines are set for delayed ringing. When a call comes in on a line, it
rings immediately at the extension where the line is assigned as a primary line; after about 20 seconds it also begins to ring at any extensions where the line is assigned as a secondary line (for example, at the receptionist’s extension).
NOTE:
The equipment controller passes Centrex ringing patterns through to each
phone (for example, Centrex ringing patterns are usually different for outside and inside calls).

Centrex Line and Extension Numbers

Each Centrex line is identified by a seven-digit telephone number (for example, 555-1212). When someone outside your system calls a Centrex telephone
number (an outside call), the call rings at the extension where that number is
assigned as the primary line.
Users who are on the same Centrex system can generally dial another extension
(an inside call) using the Centrex extension number. The Centrex extension
number is typically the last digits of the telephone number—the number of digits
is determined by the local telephone company, but in most cases the last four or five digits of the telephone number are used. For example, the Centrex
extension number for 555-1212 might be 1212 or 51212. (Some Centrex
systems may also provide a one-or two-digit “Centrex extension ID” that can be
used to dial other extensions.)

Jack Numbers for Extensions and Lines

Although users will identify extensions by the Centrex extension number, the
equipment controller tracks lines and extensions using two other numbers,
based on the physical connections at the equipment controller. When your
premises equipment was installed (see Chapter 2), the following connections were made:
■
Each Centrex line comes into your building from your local telephone company and terminates at a network interface jack; each network
interface jack is then connected to a line jack on the equipment controller. Each line jack on the controller is identified by a line jack number. Line jack numbers run from 01 through 24 (if you have the maximum number of lines that can be used with your premises equipment).
Using the Equipment
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■
Each telephone is connected (either directly or through a wall jack) to an extension jack on the equipment controller. Each extension jack on the controller is identified by an extension jack number. Extension jack numbers run from 10 through 33 (if you have the maximum number of extensions that can be used with your premises equipment).
Line jack numbers and extension jack numbers are required for many of the programming procedures that you use to customize your premises equipment.
Equipment Controller
555-1000
555-1001
555-1002
Default Primary Line Assignments
Line Jack 01 Ext. Jack 10
Centrex Ext. 1000
Centrex Ext. 1001
Line Jack 02 Ext. Jack 11
Line Jack 03 Ext. Jack 12
Centrex Ext. 1002
Figure 3-1. Centrex and Equipment Line Numbers
Figure 3-1 shows line jack numbers and extension jack numbers in relation to telephone numbers and Centrex extension numbers in a very small (three-telephone) system. The three lines in this example (555-1000, 555-1001, and 555-1002) use the last four digits of the phone number as the Centrex extension number. The first line has Centrex extension number 1000; it is connected to the first line jack on the equipment controller (line jack 01), and
serves as the primary line for the phone connected to extension jack 10. The other two lines are connected to line jacks 02 and 03, and provide primary lines for the phones connected to extension jacks 11 and 12, respectively.
NOTE:
Figure 3-1 shows only primary line assignments. By default, the equipment controller assigns all lines to the phone connected to extension jack 10, but only the first line is primary.
3-4
Using the Equipment
Page 45

Centrex Services

With each Centrex line, you have a set of Centrex services (some services may
not be available on all lines). Table 3-1 lists some of the most popular Centrex services.
To complement your Centrex services, your equipment controller provides
additional features. You can use Table 3-1 to identify the services you have on your Centrex system; then see Chapter 4 for more information on equipment features you may want to add to your system.
Centrex services are supplied by your local telephone company; see the Centrex documentation provided by your local telephone company for more specific information on the services available with your system. Also, be aware that the names of services may vary depending on the supplier. You can use the
System Planner to record the services available on each line in your system.
NOTE:
Many Centrex services are accessed by pressing the switchhook on a standard
phone, then dialing a Centrex feature code. On an MLS- or MLC-model phone,
however, use the Recall feature to send a timed switchhook flash and then dial the Centrex feature code—see Chapter 5 for instructions on programming the Recall feature on a button and Chapter 6 for instructions on using the Recall feature. Pressing the switchhook on an MLS- or MLC-model phone disconnects the current call instead of sending a switchhook flash.
Table 3-1. Examples of Popular Centrex Services
Name
Abbreviated Lets users call another Centrex extension by dialing a short code (or “Centrex
Extension Dialing
Call Detail Recording
Call Forwarding (Busy)
Call Forwarding (No Answer)
Call Forwarding (Send All Calls)
Call Hold Call Pickup
Call Waiting
Conference Lets a user speak with several parties at the same time. Dial-Out Code
Description
extension ID”). Records calling statistics for each Centrex line; reports are sent periodically
from the telephone company. When a caller gets a busy signal, forwards the call from the busy line to a
designated number. When a caller gets no answer within a designated number of rings, forwards
call from the unanswered line to a designated number.
Forwards all calls to a number specified by the user when the feature is
activated. (User may be able to specify an inside or outside number.) Puts a call on hold so that the user can place another call on the same line. Lets a user dial a code to pick up a call ringing at any extension in the pickup
group. When an inside caller gets a busy signal, the caller can dial a code to send a
“call waiting” tone to the dialed extension. The party dialed can then pick up the call or hang up when finished with the current call (the waiting calI rings).
Another form of Call Waiting supplies a “call waiting” tone whenever a call
comes in on a busy line; the caller does not have to dial a code to send the signal.
Requires that users dial a code (usually “9”) before dialing an outside number. If a dial-out code is required, this code should be programmed for the premises equipment using the PBX Dial-Out Code (#106) procedure. See page 5-10.
Using the Equipment
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Name
Direct Connect
Description
Lets the user at a designated extension dial another extension automatically by lifting the handset on a phone.
Directed Call Pickup
Distinctive Ringing
800 Service
Line Calling Restrictions
Make Busy Multi-Line Hunt
Night Service
Outward WATS
Speed Dialing (Group)
Speed Dialing (Personal)
Transfer
Lets a user dial a code to pick up a ringing call that was made to a specific Centrex extension.
Lets a user determine whether an incoming call or call waiting signal is from an inside caller or a caller outside the Centrex system. (The equipment controller passes Centrex ringing patterns through to the phones in your system.)
Lets callers from predetermined area codes make toll-free inward calls, billed to you at a rate based on expected usage.
Restricts calls made from a specific Centrex line (or group of lines). May allow entry of an authorization code to override restrictions.
Allows selected lines to seem busy to callers. Directs an incoming call made to a specific telephone number to any one of the
lines in a Centrex line group (customized hunting patterns may be available from your local telephone company).
Allows special call handling, when a receptionist is not available (for example, forwarding all calls or enabIing any user to answer calls).
Lets users place calls to predetermined area codes at a billing rate based on the expected usage.
Lets all system users call a number from a predefined list by dialing a short
code (receptionist maintains list).
Lets a user who has the feature call a number from a predefined list by dialing
a short code (user maintains list).
Lets a user transfer calls to another Centrex extension (or in some cases to an
outside number).
Voice Mail
When the user at an extension doesn’t answer and this feature is on, lets a caller leave a message for the person at the extension.
One-Touch Access
to Centrex Services
All MLS- and MLC-model phones have preprogrammed [ buttons that can be used for one-touch access to the Centrex services for conference calling and call transfer. (See the Centrex documentation provided by your local telephone company for specific instructions; but where instructions
for Centrex conference calling or call transfer say “press the switchhook on your
phone,” press the [
Auto Dial buttons let you program a sequence of digits onto a programmable phone button, and then dial the digits simply by pressing the programmed button. You can use Auto Dial buttons to store the codes you use to access
Centrex services, or to store frequently-dialed phone numbers for one-touch dialing.
Conf
] or [
Transfer
] button instead.)
Conf
] and [
Transfer
]
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Using the Equipment
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You can store dialing sequences on two types of telephones:
■
On MLS- and MLC-model phones you can store feature codes and phone
numbers on any of the programmable buttons, as long as no lines are assigned to the buttons. MLS- and MLC-model phone buttons can be programmed centrally from an MLS-34D or MLS-12D phone connected to extension jack 10 or 11, or directly at a user’s extension. In addition to Centrex feature codes and phone numbers, you can program MLS- and MLC-model phone buttons with codes for features that are available with
your premises equipment; see “One-Touch Access to Equipment
Features” in Chapter 4 for instructions.
■
On industry-standard phones with programmable buttons (feature phones), you can store feature codes and phone numbers on any
programmable buttons. Buttons on feature phones must be programmed at the user’s extension.

Storing Centrex Feature Codes on Auto Dial Buttons

To store a Centrex feature code on an Auto Dial button, first make sure the service is available on the Centrex line for the extension being programmed. Then store the Centrex feature code on the button. (For MLS- and MLC-model phones, use the instructions on pages 5-15 and 5-16; for feature phones, follow the instructions provided with the phone.)
NOTE:
When a Centrex feature code is stored on a programmable button on an MLS­or MLC-model phone, the lights next to the button do not show when the feature is active.

Storing Phone Numbers on Auto Dial Buttons

You can store outside telephone numbers or Centrex extension numbers on Auto Dial buttons. Pressing the button automatically dials the number. Outside numbers and Centrex extension numbers can be stored on any phone with
programmable buttons.
To program an outside telephone number, store the complete number, including the dial-out code (“9” on most Centrex systems) if your Centrex system requires it for outside calls. For example, to dial 201 555-1212, store 9 1 201 555 1212 on the Auto Dial button.
NOTE:
If a dial-out code is required for outside calls, this code should be programmed for the premises equipment using the PBX Dial-Out Code (#106) procedure. See page 5-10.
If you store a Centrex extension number on a button, you can use the button to call the extension simply by pressing the button or to help in transferring the call. (For instructions on using Centrex call transfer, see the Centrex documentation provided by your local telephone company.)
Using the Equipment
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Decisions for Customizing Your System

Contents
4
Overview
Terminology
Call Coverage Options
Central Call Coverage
■
■
Centrex Call Coverage Local Call Coverage
■
■
Call Coverage with Answering Machines
■
Additional Options for Covering Extensions
One-Touch Access to Equipment Features
■
Intercom Calling
■
Paging
Optional Features for Premises Equipment
■
Night Service
■
Speed Dialing
System Speed Dialing
Personal Speed Dialing
■
Calling Restrictions
Restricting Line Access Restricting Dialing for All Lines at an Extension
Overriding Dialing Restrictions
Entering Telephone Numbers into Lists Summary of Equipment Dialing Restrictions Dialing Restrictions: An Example
Auxiliary Equipment
■
Hotline Phones
■
Doorphones
■
Call Reporting Fax Machines■
■
Music on Hold
4-1 4-2 4-3
4-3 4-5 4-6 4-10 4-10
4-10 4-11
4-12 4-13
4-13 4-14 4-14 4-15 4-15 4-16 4-16 4-17 4-18 4-20 4-22
4-22 4-23
4-23 4-24 4-24 4-24
Identifying the Equipment Features You Need
4-24
4-i
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Decisions for Customizing Your System

Overview

As discussed in Chapter 3, the default settings for your premises equipment are designed to complement your Centrex services. However, you may wish to customize your premises equipment to fit the needs of your business more exactly.
4
This chapter describes some equipment features that can provide added
benefits to your system, as well as some settings that you may wish to change to
tailor your phone system to your needs. Use the material here to help you make
choices about the way you want your system to work and identify the relevant programming procedures; then see Chapter 5 for detailed programming instructions.
NOTE:
The System Planner for your premises equipment provides an ongoing record of your equipment setup and programming. If you change the programming for your premises equipment after installation, record any changes in your System
Planner. This ensures that you always have a current record of your equipment programming.
The following topics are discussed in this chapter:
■
Call coverage options
■
One-touch access to equipment features
■
Optional equipment features
■
Auxiliary equipment.
Customizing Your System
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Terminology

The following terms are used in this chapter. In addition, you may wish to review the “Terminology” section of “About This Guide,” which defines basic terms used throughout this guide, or the Glossary, which defines all terms.
Auto Dial button
Auxiliary equipment
Call coverage
Doorphone
A programmable telephone button that lets you dial a series
of digits simply by pressing that button. An Auto Dial button can be used to store a Centrex feature code or a telephone number so that it can be dialed with one touch. See also Equipment feature button and Programmable button.
Telecommunications equipment (other than MLS- and MLC-model telephones) that can be connected to the equipment controller. Auxiliary equipment includes industry-standard devices that can connect directly to the public telephone network (such as standard phones or fax machines) as well as devices that require the interface provided by the equipment controller (such as a loudspeaker paging system).
An arrangement that lets a receptionist or a person at another extension answer a call when the dialed extension is busy or
not answered. Call coverage may be provided centrally by a receptionist (using default equipment settings), locally by a
person at another extension (requiring secondary line assignments), or using Centrex coverage services (such as call forwarding or voice mail). In addition, answering machines may be installed at key extensions to take messages when a person is not available to take calls.
An AT&T proprietary phone that can be wall mounted outside your office or in a lobby, to allow visitors to alert up to five system extensions by pressing a button. The doorphone includes a speaker and microphone, to allow two-way conversation between the doorphone and the phone that answers.
Equipment
feature
Equipment
feature button
Hotline phone
Premises equipment
4-2
Customizing Your System
A feature provided by your equipment controller (as opposed to a service provided by Centrex).
A programmable telephone button on an MLS- or MLC-model telephone that enables you to access an equipment feature simply by pressing that button. See also Auto Dial button and Programmable button.
A standard phone that rings another extension automatically
when the handset is lifted. The AT&T equipment controller and MLS- and MLC-model
telephones that you purchased as part of your system, plus all other telecommunications devices that are connected to your equipment controller. For purposes of this guide,
premises equipment does not include any equipment that
connects directly to Centrex lines without going through the equipment controller.
Page 51
Programmable button
A telephone button that can be set up to access a feature. On MLS- and MLC-model phones, programmable buttons can be used as Auto Dial buttons (for one-touch dialing of Centrex feature codes or telephone numbers) or equipment feature buttons.

Call Coverage Options

This section describes your options for providing call coverage when the user at an extension is not available to take calls. The following options are discussed:
■
Central Call Coverage by a receptionist (the default)
■
Centrex Call Coverage using Centrex features such as call forwarding or voice mail
■
Local Call Coverage by another extension
■
Coverage by an answering machine
■
Additional options for extensions that provide call coverage.
An extension that picks up calls on another extension’s line is referred to as a
covering extension. An extension whose calls can be picked up by another extension is referred to as a covered extension.

Central Call Coverage

Central Call Coverage—the default call coverage setup—lets a central receptionist answer calls that are not picked up by the user at the dialed
extension. When a call comes in on a line, it rings first at the phone where the
line is assigned as a primary line, but if the user at that extension does not pick it up, it also rings at the receptionist’s phone.
NOTE:
For a central receptionist, install an MLS-34D phone (which has 32 line/programmable buttons). This phone can easily handle the system maximum
of 24 lines and still have eight programmable buttons available for features.
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Figure 4-1 shows how Central Call Coverage works.
Ext. 1004
Receptionist's Phone
Ext. 1000
Incoming Call
rings immediately
Ext. 1005
Primary
Ext. 1001
Ext. 1006
Ext. 1002
Ext. 1007
Ext. 1003
Covered Call
rings after about 20 seconds
Figure 4-1. Central Call Coverage
Setup for Central Call Coverage is simple, because the equipment controller automatically assigns all lines to the receptionist’s phone (the phone connected to extension jack 10). The Centrex line connected to line jack 01 on the equipment controller is assigned as the primary line; all other lines are assigned as secondary lines. This arrangement lets a receptionist cover all of the lines in your system.
Table 4-1 shows the equipment programming settings that are needed for
Central Call Coverage. The first column shows the name of the programming procedure or function. System Programming procedures, which determine how the equipment controller handles lines and extensions, include the procedure number in parentheses—for example, “Line Assignment (#301).” Telephone Programming procedures, which affect the operation of individual extensions, show only the name of the procedure. (See Chapter 5 for more information on programming.) The remaining columns show the required and optional settings for this call coverage setup.
4-4
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Table 4-1. Programming for Central Call Coverage
Procedure
Setting for Receptionist (Extension
Jack 10)
Line Assignment (#301)
Abbreviated Ringing (#305)
Line Ringing
* Default settings for premises equipment.
*In addition to its own primary line, assigns all other lines in the system as secondary lines.
If a line should not be answered by the receptionist, remove that line’s
assignment for extension jack 10. *Normally, if a call comes in when you
are on the phone, the call will ring at
your phone only once (but the light next to the line button will continue to flash).
To have incoming calls keep ringing, even when you are busy on another call, set Abbreviated Ringing to “not active”
(setting applies to all lines assigned at
that extension).
*Sets the primary line for “immediate ring;” sets secondary lines for “delayed ring” (after about 20 seconds). If a line
should not be answered by the
receptionist, set to “no ring. ”
If the receptionist should answer all calls on a line, set ringing for that line to “immediate ring.”
Setting for Other Extensions
*Assigns a unique primary line to each extension.
*Normally, if a call comes in when you are on the phone, the call will ring at
your phone only once (but the light next
to the line button will continue to flash).
To have incoming calls keep ringing,
even when you are busy on another call,
set Abbreviated Ringing to “not active”
(setting applies to all lines assigned at that extension).
*At each extension, sets the primary line
for “immediate ring.”
If the receptionist should answer all calls on a particular user’s line, set ringing for
that line to “delayed ring” or “no ring” at
the user’s extension.

Centrex Call Coverage

Centrex Call Coverage uses Centrex services—such as call forwarding or voice mail—to provide coverage for unanswered calls.
To set up Centrex Call Coverage, remove all secondary lines from the
receptionist’s phone (the phone connected to extension jack 10). You may also
wish to program the codes for Centrex coverage services onto programmable
phone buttons, to provide one-touch access to those services.
Table 4-2 shows the settings you should change to switch from Central Call Coverage to Centrex Call Coverage. The first column shows the name of the
programming procedure or function. System Programming procedures, which determine how the equipment controller handles lines and extensions, include the procedure number in parentheses—for example, “Line Assignment (#301).” Telephone Programming procedures, which affect the operation of individual extensions, show only the name of the procedure. (See Chapter 5 for more information on programming.) The remaining columns show the required and optional settings for this call coverage setup.
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Table 4-2. Programming for Centrex Call Coverage
Procedure
Line Assignment (#301)
Button
features
Setting for Phone at Extension Jack 10
Remove all lines except the primary line.
To provide one-touch access to Centrex coverage services, program the Centrex feature codes onto Auto Dial buttons.

Local Call Coverage

Local Call Coverage enables co-workers to cover each others’ phones. This coverage setup can eliminate the need for a central receptionist.
NOTE:
MLS- or MLC-model phones are recommended at covering extensions, so that
the user at a covering extension can see which line is ringing when a call comes
in. Figure 4-2 shows one example of how Local Call Coverage works.
Incoming Call
rings immediately
Covered Call
rings after about 20 seconds
Ext. 1001
Setting For Other
Extensions
No changes needed
To provide one-touch access to Centrex coverage services, program the Centrex feature codes onto Auto Dial buttons.
Ext. 1002
Ext. 1003
Figure 4-2. Local Call Coverage: Backup Call Answering
4-6
Customizing Your System
Ext. 1000
Primary
Secondary Secondary
Secondary
Page 55
Centrex extension 1000 (shown in Figure 4-2) is a covering extension for three other extensions. It has a primary line (-1000) and three secondary lines (-1001,
-1002, and -1003). With the secondary lines set for “delayed ring,” calls to those
lines begin ringing at extension 1000 after about 20 seconds. This setup might
be useful for someone who serves as a backup answering position for a
department. (Alternatively, each of these four extensions could be assigned
secondary lines for all the other members of the extension group, so that any
member of the group could cover calls for any other member.)
The phone at extension 1007 (see Figure 4-3) has a primary line plus a single
secondary line. With the secondary line set for “immediate ring,” all calls on the
secondary line ring immediately at the covering extension. This setup is useful
when someone screens all calls on a line, transferring them only when the user
at the covered extension wants to take the call.
Incoming Call
rings immediately
Ext. 1008
Primary
Ext. 1007
Secondary
Figure 4-3. Local Call Coverage: Immediate Call Answering
To set up Local Call Coverage, remove secondary lines from the receptionist’s
phone (the phone connected to extension jack 10) and assign them to covering
extensions as needed. (To have the receptionist keep covering some lines,
remove only the lines that will be covered by other extensions.)
Adjust line ringing for primary and secondary lines to fit the type of call coverage you want. For example, set a primary line to “immediate ringing” (the default setting) if calls should ring first at the covered extension. Then set the
line to “delayed ring” or “no ring” at the covering extension.
Button-Down Mode (#723)
adjusts ringing for all phones. Designed for people who are accustomed to 1A Key systems, this setting means that calls ring only on an extension’s primary line (or on the intercom). When a call comes in on a
secondary line, the lights next to the line button flash, but the call does not ring. The person at the covering extension must press the line button to answer the call. This prevents users from accidentally answering incoming calls on secondary lines when they are trying to place calls on their primary lines. At the
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phone connected to extension jack 10, lines ring according to defaults
(“immediate ring” for the primary line and “delayed ring” for secondary lines). If you are combining Local Call Coverage with button-down operation, you may want to adjust Line Ringing at covering extensions so that some secondary lines
ring. (To put the system into button-down mode, see page 5-10.)
Table 4-3 shows the settings you must change to switch from Central Call Coverage to Local Call Coverage. The first column shows the name of the
programming procedure or function. System Programming procedures, which
determine how the equipment controller handles lines and extensions, include the procedure number in parentheses—for example, “Line Assignment (#301).” Telephone Programming procedures, which affect the operation of individual
extensions, show only the name of the procedure. (See Chapter 5 for more
information on programming.) The remaining columns show the required and optional settings for this call coverage setup.
Table 4-3. Programming for Local Call Coverage
Procedure
Line
Assignment
(#301)
Line
Access
Restriction (#302)
Automatic Extension Privacy (#304)
Setting at Extension Jack 10
Remove any assignments for lines that you do not want covered.
Set secondary lines to “incoming only” if you want to control use of secondary lines (see page 4-16). Any Centrex calling restrictions for the line are also in effect.
Make sure the setting is “not assigned,” so that users at covered extensions will be able to join conversations on their primary lines.
Setting For Covering Extensions
Assign any secondary lines to be covered by the extension.
Set secondary lines to “incoming only” if you want to control use of secondary lines (see page 4-16). Any Centrex calling restrictions for the line are also in effect.
Make sure the setting is “not assigned,” so that users at covered extensions will be able to join conversations on their primary lines.
Setting For Covered Extensions
No change required
No change required
Set to “assigned” (or program
Privacy on a lighted button) to
prevent users at covering extensions from joining calls on this extension’s primary line.
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Procedure
Setting at Extension Jack 10
Setting for Covering Extensions
Setting for Covered Extensions
Abbreviated Ringing (#305)
Line Ringing
Set to “not active” for an
extension if you want incoming calls to keep
ringing, even when the user at the extension is
busy on
another call
(this setting
applies to all
lines assigned
at that
extension).
No change
required
Set to “not active” for an extension if you want incoming calls to keep ringing, even when the user at the extension is busy on another call (this setting applies to all lines assigned at that extension).
To pick up calls on secondary lines only when there is no answer on the covered lines, set ringing for secondary lines to
“delayed ring.” To answer
all calls, set ringing for secondary lines to “immediate ring.”
Alternatively, use
Button-Down Mode (#723) to set secondary lines (at all system extensions) to “no
ring;” this setting means that when a call comes in on a secondary line, the lights next to the line button flash, but the call does not
ring. The user at the covering extension must
press the line button to answer the call.
No change required
If the user at the covering extension should screen all calls, set the primary line to “no ring” or “delayed ring.”
Do Not Disturb ([
Feature
[ 0 ] [ 1 ])
Privacy ([
Feature
[ 0 ] [ 7 ])
No change required
]
No change
]
required
No change required
No change required
Program on a lighted button (on an MLS- or MLC-model phone only). When the feature is on, calls do not ring at the extension, but callers hear ringing. (The lighted button shows when Do Not Disturb is on.) This option is only recommended when all calls for an extension are covered by a user at another extension.
Program on a lighted button (on an MLS- or MLC-model phone only) to allow the person at the extension to turn Privacy on and off. This allows the person at the extension to control when others who share a line can join in on a call.
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Call Coverage with Answering Machines

Personal answering machines are a call coverage option that can be used alone
or combined with other call coverage solutions. An answering machine can be
combined with a telephone at any extension, using a bridging adapter as described on page 2-5. With this setup, an answering machine covers all ringing calls on an extension (on both primary and secondary lines). For more
details on connecting personal answering machines, see page 7-5.

Additional Options for Covering Extensions

The following equipment features can be especially useful when they are
programmed onto equipment feature buttons for covering extensions. Programming procedures are explained in detail in Chapter 5.
■
Fax Management.
your system, first use extension where the fax machine is installed. Then, on the covering extension’s phone, program a one-touch Intercom Calling button with the extension jack number for the fax machine. This enables the person at
the covering extension to see whether the fax machine is busy or not
responding (for instance, out of paper). Use remove the fax line from the receptionist’s phone. For more information on setting up fax machine extensions, see page 7-1.
■
Message Light On
programmable buttons, to turn the message lights on MLS- or MLC-model phones on and off. (To use a button programmed with one of these
features, you must press that button and then dial the extension jack
number.)
If you are connecting a fax machine to an extension in
Fax Machine Extensions (#601)
and
Message Light Off
to identify the
Line Assignment (#301)
to
can be assigned to
■
Use
Line Access Restriction (#302)
on secondary lines. For more information, see page 4-16.
■
Night Service
must be turned on and off at the receptionist’s phone (the
phone connected to extension jack 10 on the equipment controller). For
more information about Night Service, see page 4-13.

One-Touch Access to Equipment Features

As discussed in “One-Touch Access to Centrex Services” in Chapter 3, you can store any dialing sequence—such as Centrex feature codes or frequently-dialed phone numbers—on programmable phone buttons. In addition, you can program the buttons on MLS- and MLC-model phones with the codes for features that are available with your premises equipment.
MLS- and MLC-model phone buttons can be programmed centrally from an MLS-34D or MLS-12D display phone connected to extension jack 10 or 11, or directly at a user’s extension. For equipment features that require an extension or line jack number, you should program the features centrally, storing the feature codes on programmable buttons—this lets people use the features simply by pressing buttons, without needing to remember the jack numbers. (See Appendix B for a complete discussion of equipment features that require extension or line jack numbers.)
if you wish to control outgoing calls
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Some features require buttons with lights. Other features do not require buttons with lights, but do use the lights to show status information if they are available.
For features that can be turned off and on by the user (such as Do Not Disturb
and Privacy), the features are on whenever the lights are on.
NOTE:
The lights on MLS-model phones do not show status information for Centrex features.
Information on programming equipment features is provided on page 5-16. Here are some specific features you might want to store on programmable
buttons:
■
Voice paging of specific extensions
■
Voice paging of Calling Groups
■
Extension jack numbers for frequently-dialed extensions inside your
system (so that users can call with one touch, talk without tying up their
primary lines, and monitor the status of that extension).
■
Message Light On and Message Light Off
■
Privacy and Do Not Disturb, which require buttons with lights
■
Recall, to send a switchhook flash for accessing Centrex features while
on a call.

Intercom Calling

If you store an extension jack number on a programmable button at an MLS- or MLC-model phone, you can use the button as a Direct Station Select (DSS) button, to call the extension with one touch, simply by pressing the button. This enables you to call the extension using the intercom, so you can make an inside call without tying up your primary line (as well as the primary line for the person
you are calling). (See Appendix B for details on intercom calling.)
In addition, the lights next to the button act as Busy Lamp Fields (BLF) that show calling activity for the extension:
■
Idle (no lights)
■
Busy (red on)
■
Calling you using the intercom (green flash).
If the extension is identified as a fax extension, the button also shows a red broken flutter when the fax is not responding (for instance, when it is out of paper).
This equipment feature is called Call Viewing. You may wish to use Call Viewing
at any covering extension (for example, at the receptionist’s phone), so the person at the covering extension can monitor calling activity at covered extensions by looking at the Intercom Calling buttons. Since Call Viewing requires buttons with lights for each extension covered, an MLS-34D, MLS-12,
or MLS-12D phone is recommended for this function.
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Paging

Example:
A person at a covering extension who screens another extension’s calls may
need an Intercom Calling button for the covered extension (possibly with voice paging) to announce calls and visitors. The lights beside the Intercom Calling
button show when the covered extension is busy.
To program an Intercom Calling button, see page 5-15.
Two equipment features enable you to page system extensions. For ease of use, you should store these features on the programmable buttons of MLS- or
MLC-model phones, so that a user can page a phone or group of phones simply by pressing the programmed button.
The following types of paging are available:
■
Paging over an optional loudspeaker paging system,
which may be connected to the equipment controller. You access the loudspeaker by dialing an equipment feature code, which can be programmed onto a button on an MLS- or MLC-model phone.
■
Paging over MLS-model phones,
which have built-in speakers, provides an inexpensive alternative to a loudspeaker paging system. By dialing the appropriate feature code, you can page an extension (Voice Paging) or a Calling Group (Group Paging). Paged extensions beep (at any extension
that has an MLS-model phone) to indicate that the speaker has been turned on; then your voice is heard over the speaker. When a caller picks up the page (by picking up the handset or pressing [
Mic
]), the page becomes an intercom call between the person who paged and the person who picked up. (Because it is an intercom call, the call does not tie up the user’s primary line.)
The feature code for Group Paging, or for paging a particular extension, can be stored on a telephone button for one-touch dialing. (Paging an extension requires that the extension jack number be stored on the telephone button.)
If you are busy on a call when someone tries to voice page your extension, your phone rings instead of turning on the speaker for the page. If you try to voice page an extension where a standard phone or MLC-6 is connected, the phone rings.
Example:
A car dealership puts all extensions for the sales staff into a Calling Group. To talk to salespeople, the sales manager simply presses a programmed button on an MLS- or MLC-model phone. A paging intercom call goes to the Calling Group. The phones’ primary lines remain free for incoming calls.
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To set up loudspeaker paging:
■
Connect a loudspeaker paging system to the primary processor module of the equipment controller, as described on page 2-13.
■
To let a user access loudspeaker paging with one touch, install an MLS­or MLC-model phone at the user’s extension and program a button with
the feature code for loudspeaker paging (see page 5-16).
To set up paging to MLS-model phones:
■
Install MLS-model phones in locations where you want employees to hear
voice-paging announcements.
■
To set up group paging, first use assign extensions to Calling Groups. Exclude extensions with fax machines, Hotline phones, doorphones, or other auxiliary equipment from Calling Groups. You can set up as many as four Calling Groups.
■
Program paging buttons on MLS- or MLC-model phones, so that people can easily page groups or individuals. (Program these features onto buttons so that users will not have to remember group numbers or extension jack numbers.) See page 5-16 for programming information.

Optional Features for Premises Equipment

Calling Group Extensions (#502)
to
In addition to the features you have available through Centrex, you can use equipment features to support your company’s call handling. This section discusses some of the most useful features; for a complete listing, see Table 4-6 on page 4-25. Programming instructions are in Chapter 5.

Night Service

The Night Service feature allows you to change the way a group of extensions operates after normal business hours. When Night Service is turned on, all
incoming calls will ring immediately the extensions in the
Group (#504),
or “no ring” during normal daytime use. For Night Service to work properly, all
lines should be assigned to the extensions in the Night Service Group.
Example:
with all of the lines for the company assigned to it. The secondary lines are set to “no ring,” so that the guard only receives calls on the primary line for the extension during the day. When Night Service is on, however, all lines ring immediately at the security desk, to provide backup call answering when there is no one available in the office.
Table 4-4 shows the programming settings that must be entered to set up Night Service. The first column shows the name of the programming procedure or function. System Programming procedures include the procedure number in parentheses—for example, “Line Assignment (#301).” The remaining columns show the required and optional settings for Night Service.
Night Service
even if Line Ringing for those extensions is set for “delayed ring”
The security guard at Company X has a standard single-line phone
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If you wish to restrict calling from Night Service Group extensions, use
Password (#403)
to specify the system password. If a password is programmed, users in the Night Service Group must enter it before dialing outside telephone numbers or Centrex extension numbers (with some exceptions, described on page 5-13). Intercom calls can be made without using the password (see Appendix B). The password must be entered to turn Night Service on or off. A System Password cannot be entered from a standard phone
or from an MLC-6 cordless phone.
Table 4-4. Programming for Night Service
System
Procedure
Line Assignment (#301)
Night Service Button (#503)
Night Service Group Extensions (#504)

Speed Dialing

Centrex may provide speed dialing for some or all of your Centrex lines. However, you can store additional numbers using the Speed Dialing feature available with your premises equipment.
Speed Dial numbers are outside telephone numbers or Centrex extension numbers that a user can dial automatically by pressing [ code.
Setting at Extension Jack 10 Setting for Night Service Group
No change required
Program the Night Service button on any lighted programmable button on the MLS-34D or MLS-12D display phone. (Whether or not you are using a central receptionist, the Night Service button can only be on the telephone connected to extension jack 10.) Press the button to turn Night Service on or off.
No change required
Extensions
Assign the lines that may ring at night
(or all lines) to the extensions you wish
to include in the Night Service Group.
No change required
Assign extensions to the Night Service
Group.
Feature
] and a two-digit
NOTE:
The Speed Dial numbers available with your premises equipment can be dialed only from MLS- and MLC-model phones.
System Speed Dialing
You can program frequently dialed phone numbers—such as suppliers, repair
services, customers, or other business associates—so that all users in the system with MLS- and MLC-model phones can dial them by pressing three buttons: [
Feature
The following notes apply to System Speed Dial numbers:
System Speed Dial numbers are stored in the equipment controller, so a
■
user at any MLS- or MLC-model phone can dial them provided that a Centrex line is assigned to the extension.
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Customizing Your System
] plus a two-digit code.
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■
The equipment controller can store a maximum of 80 System Speed Dial
numbers (dial codes 20-79).
■
System Speed Dial numbers must be programmed from an MLS-34D or MLS-12D display phone at extension jack 10 or 11.
If you must include a dial-out code before dialing an outside number,
■
include the dial-out code in the programmed Speed Dial number.
It is recommended that you do not store Centrex feature codes as System
■
Speed Dial numbers. (If the equipment controller sees an asterisk in the Centrex feature code, it will interpret the number as a Marked System Speed Dial number and will not dial the asterisk.)
Appendix A provides a form on which to record Speed Dial numbers. You should record all System Speed Dial numbers on the top of that form and give a copy to each user with an MLS- or MLC-model phone.
You may decide to use Centrex speed dialing on all lines for the numbers that all users need often; Centrex speed dial numbers can be dialed from both standard phones and MLS- or MLC-model phones.
Frequently-dialed numbers can also be programmed onto Auto Dial buttons on MLS- or MLC-model phones for even faster one-touch dialing.
Personal Speed Dialing
Personal Speed Dial numbers are available only at the extension for which they are programmed (for users who have MLS- or MLC-model phones). The following notes apply to Personal Speed Dial numbers:
■
Personal Speed Dial numbers are stored in an extension’s memory and
are for the private use of that extension.
■
Each extension can have a maximum of 20 Personal Speed Dial numbers (dial codes 80-99).
■
Personal Speed Dial numbers can be programmed from an MLS-34D or MLS-12D phone at extension jack 10 or 11, or from the user’s extension.
■
Personal Speed Dial numbers do not have to be used to store telephone numbers. Like programmable buttons, they can also be programmed to provide faster access to equipment and Centrex features.
■
If you must include a dial-out code before dialing an outside number,
include the dial-out code in the programmed Speed Dial number.
Users can record their Personal Speed Dial numbers on the Quick Reference cards for their phones or on the bottom of the Appendix A “Speed Dial Numbers” form.

Calling Restrictions

Once a caller has access to a Centrex line, Centrex can provide dialing restrictions for the line. Centrex restrictions apply to all appearances of a line—controlling calling on all phones that have that line assigned, whether the line is assigned as a secondary line or as a primary line.
The dialing restrictions that are available through your equipment controller can provide additional flexibility, letting you control a particular extension’s access to
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NOTE:
While procedures that restrict dialing are very effective, absolute protection against misuse cannot be guaranteed. MLS- and MLC-model phones give more protection than standard phones. Therefore, we strongly recommend that you install MLS- and MLC-model phones where restricting phone use is important.
When an extension is allowed access to a Centrex line, you can use the following procedures to control calling for all lines to which the extension has access:
■
Outgoing Call Restriction (#401)
■
No restriction allows outside calls to long distance and local numbers,
provides the following choices:
and inside calls.
■
Local only allows outside calls to local numbers, and inside calls (make sure the Toll Call Prefix is set properly, using procedure #402).
■
Inside only allows inside calls only.
■
Disallowed Phone Number Lists (#404)
creates lists of numbers that
cannot be dialed. The numbers on a Disallowed List can be entire
telephone numbers, or numbers of a certain type (such as all numbers in
a particular area code). You can store as many as four different lists of up to 10 numbers each. For information on entering telephone numbers into lists, see “Entering Telephone Numbers into Lists” on page 4-18. (For programming information, see page 5-12.)
After you create the Disallowed Lists, use the
Assignments (#405)
procedure to assign one or more of the lists to a
specific extension.
■
Night Service
(with a System Password defined) restricts calling on Centrex lines by all extensions in the Night Service Group. Night Service (with or without a password) also causes after-hours calls to ring immediately at the extensions in the equipment Night Service Group, regardless of Line Ringing during normal day operation. See page 4-13 for details on Night Service.
Overriding Dialing Restrictions
The following programming procedures provide ways to override all equipment dialing restrictions, except those imposed by Line Access Restriction (the extension must have access to a Centrex line):
Emergency Phone Number List (#406)
■
numbers that can be dialed from any extension in the system. A typical Emergency number is 911. For information on entering telephone numbers into lists, see “Entering Telephone Numbers into Lists” on page 4-18. (For programming information, see page 5-12.)
NOTE:
A variety of factors influence the effectiveness of dialing restrictions. Avoid putting 800 numbers in your Emergency List. If you need to allow restricted users to dial 800 numbers, put those numbers in an Allowed Phone Number List (see page 4-18).
Disallowed List
defines a list of up to ten
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Marked System Speed Dial Numbers
■
can be dialed from any extension. System Speed Dial numbers are telephone numbers that a user can dial automatically by pressing [
Feature
] (or [ # ] on a standard phone), followed
by a two-digit code. “Marking” a System Speed Dial number when the number is programmed lets any user in the system dial it, overriding any equipment dialing restrictions for the extension.
■
System Password (#403)
creates a password that, when entered at any MLS-model phone, overrides equipment dialing restrictions for the duration of a call. This means that a person who knows the password can make a call from a restricted extension. If you define a System Password, turning on Night Service also restricts calling for the Night Service Group. See page 4-13 for details on Night Service.
You can use the following procedure to override all equipment dialing
restrictions, except Line Access Restriction and Night Service with a System Password:
■
Allowed Phone Number Lists (#407)
allows you to create lists of
numbers that specific extensions are allowed to dial. Even if an
extension’s settings for Outgoing Call Restriction and Disallowed Phone Numbers would normally prevent the extension from dialing a number, defining the number as an Allowed Phone Number lets the extension dial it. (For example, if you put 900 numbers on a Disallowed List but want users to be able to call a specific 900 technical support hotline, put that number in an Allowed List.) For information on entering telephone numbers into lists, see “Entering Telephone Numbers into Lists” on page 4-18. (For programming information, see page 5-12.)
The equipment controller stores as many as four different Allowed
Lists of up to 10 numbers each. After creating Allowed Lists, use the
Allowed List Assignments (#408)
the lists to a specific extension.
Entering Telephone Numbers into Lists
This section explains how to enter telephone numbers into Disallowed Phone Number Lists, Allowed Phone Number Lists, and an Emergency Phone Number List.
To store a telephone number, dial the number as you would normally; but leave
out the dial-out code if you must normally dial one to place outside calls.
However, for toll calls you should include a toll call prefix such as 1 or 0 (if you must dial one to place toll calls) and the area code.
For example, to prevent all calls to a specific area code, you need only enter the toll call prefix and the area code in a Disallowed List. When a user at an extension to which the list is assigned tries to dial a number in that area code,
the user hears a reorder tone (fast busy signal) as soon as they dial the area
code, before they have a chance to dial the rest of the number.
When you store a telephone number in a list, you can also use the “wildcard”
character to stand for any single digit in a phone number. To enter the wildcard
character, press [
Hold
]; the wildcard appears as “!” on the telephone display. For example, if you want to prevent users from placing calls to any numbers beginning with 202, 212, 222, 232, 242, 252, 262, 272, 282, and 292, you can
enter each number in a separate list entry, or you can combine them into one
procedure to assign one or more of
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entry by entering [ 2 ] [
Hold
] [ 2 ] into your list (using the wild card for the middle
digit). The examples below show how you would enter telephone numbers for a
Disallowed List, including both normally-dialed numbers and numbers with wildcards.
■
Specific Telephone Numbers.
example, to prevent calls to the local number 555-5678, press [
Dial the telephone number directly. For
5
] [ 5 ] [ 5 ]
[ 5 ] [ 6 ] [ 7 ] [ 8 ] .
■
All Telephone Numbers in One Area Code.
The following list entries
prevent calls to the 900 area code:
■
List 1 (Toll Call Prefix required)
1900 0900
■
List 2 (Toll Call Prefix not required)
900
Prevents direct-dial calls to area code 900 Prevents operator-assisted calls to area code 900
Prevents all calls to area code 900.
NOTE:
The entries you must make to restrict toll calls differ depending on the setting for the
Toll Call Prefix (#402)
procedure. (This setting tells the equipment controller
whether a “0” or “1” is required when you make toll calls.) Make sure the Toll
Call Prefix is set correctly for your dialing area. If it is not, entries on the Disallowed and Allowed Lists may not be handled properly.
All Telephone Numbers in One Exchange.
■
prevent calls to the 976 exchange:
■
List 1 (Toll Call Prefix required)
976 1!0!976
Prevents local calls Prevents direct-dial calls to area codes with “0” as the
second digit
1!1!976
Prevents direct-dial calls to area codes with “1” as the second digit
0!0!976
Prevents operator-assisted calls to area codes with “0” as the second digit
0!1!976
Prevents operator-assisted calls to area codes with” 1” as the second digit
1976
Prevents direct-dial in-state calls (needed only when 0 or 1 is required for in-state toll calls)
0976
Prevents operator-assisted in-state calls (needed only when 0 or 1 is required for in-state toll calls)
■
List 2 (Toll Call Prefix not required)
976 !0!976
Prevents local calls Prevents calls to area codes with “0” as the second
digit, such as 203
!1!976
Prevents calls to area codes with “1” as the second digit, such as 212
The following list entries
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International Long Distance.
■
international prefix numbers, [
To prevent international calls, enter the
0
] [ 1 ] [ 1 ].
You can also use Allowed List entries to override numbers that would otherwise be disallowed. For example, if you wish to allow calls to a specific 900 number (such as a technical support number), put the number in an Allowed List:
List 1 (Toll Call Prefix required)
■
19005559999 09005559999
■
List 2 (Toll Call Prefix not required)
9005559999
Summary of Equipment Dialing Restrictions
Table 4-5 summarizes the equipment dialing restrictions and permissions, showing how they can be combined in a variety of ways to customize an extension’s dialing privileges. This table assumes that at least one Centrex line is assigned to the extension for which you are creating dialing restrictions.
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Settings that restrict an extension’s access to a specific Centrex line
Settings that restrict an extension’s dialing once it gets a line
Table 4-5. Dialing Restrictions and Permissions
Type of Restrictions
or Permissions for the Extension
Can only
monitor call
activity and pick up held calls on a
specific Centrex line
(cannot place or receive calls on the line)
Can only receive (but not place) calls on a specific Centrex line
Can only place (but not receive) calls on a specific Centrex line
Can only place inside calls (and can answer any call)
Can only place inside and local calls (and can answer any call)
Can place inside, local, and long­distance calls (and can answer any call)
Example
Example: The receptionist's phone has the boss' private line, so the receptionist can see when the boss is on the line and can pick up calls the
boss has put on hold.
Example: A line is only used for taking sales orders.
Example: A line is only used for telemarketing.
Example: Clerks in a supermarket can call the service desk to check prices, but they cannot make outgoing calls.
Example: An extension in the lobby permits visitors to make local and inside calls, but they are prevented from making long-distance calls.
Example: An employee can make any type of call on lines appearing on his or her phone, but calls to some specific local and long-distance numbers are restricted.
Setting for Line Access Restriction (#302)
“No access” for that line
“Incoming only” for that line
“Outgoing only”
for that line
“No restriction”
“No restriction”
“No restriction” “No restriction”
Setting for Outgoing Call Restriction (#401)
No changes needed
No changes needed
No changes needed
“Inside only”
“Local only” Any local numbers that
Setting for Disallowed/Allowed Phone Number Lists (#404/#405)
No changes needed
No changes needed
No changes needed
No changes needed
should not be dialed from the extension are
put into a Disallowed List
(see page 4-19).
Any local and
long-distance numbers that should not be dialed from the extension are
put into a Disallowed List
(see page 4-19).
NOTE:
Emergency numbers, Marked System Speed Dial Numbers, Allowed Phone Numbers, and numbers dialed using the System Password override all dialing
restrictions if a user has access to a Centrex line to place the call.
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Dialing Restrictions: An Example
The following example shows how the equipment controller checks dialing
restrictions and permissions when a user places a call. The controller checks
the number dialed against all the equipment dialing restrictions that apply to the
extension placing the call. When the number dialed passes a restriction, it goes to the next one, if necessary. When a number violates a restriction, the call is stopped and the user hears a reorder (fast busy signal) tone.
In this example, the user is dialing on a line that has Outgoing Call Restriction
set to “local only.” In addition, the extension has an Allowed Phone Number List that contains a “1800” entry. Notice that the equipment controller keeps checking the number until it finds a valid reason to complete the call or stop it.
Dial: 1 201 555-1212
Emergency Number?
No, keep checking
Marked System Speed Dial Number?
No, keep checking
System Password entered?
No, keep checking
Night Service on?
No, keep checking
Allowed Phone Number?
No, keep checking
Disallowed Phone Number?
No, keep checking
Outgoing Call Restriction violated?
Yes, call dropped and reorder tone given
NOTE:
If you have Centrex dialing restrictions on a line and also program equipment
dialing restrictions for the line or an extension where the line is assigned, both the Centrex and equipment restrictions will apply to the line or extension.
However, equipment dialing permissions will not override Centrex restrictions.
Dial: 1 800 555-1212
Emergency Number?
No, keep checking
Marked System Speed Dial Number?
No, keep checking
System Password entered?
No, keep checking
Night Service on?
No, keep checking
Allowed Phone Number?
Yes, complete the call (if there are no Centrex restrictions)

Auxiliary Equipment

You can use a variety of auxiliary devices with your phone system, either by connecting them directly to the equipment controller or by connecting them to extensions. This chapter includes information on auxiliary equipment that requires programming, including Hotline phones, loudspeaker paging systems, doorphones, call reporting devices (SMDR), fax machines, and music-on-hold sources. Chapter 7 includes further information about this equipment and
additional equipment that does not require programming (including answering
machines, modems, and credit card scanners). In addition, Chapter 2 includes information about connecting auxiliary equipment to your equipment controller. Programming procedures are explained in detail in Chapter 5.
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■
Use that will be signalled by a doorphone when the doorphone button is pressed.
■
Make sure the doorphone extension is not in the
Calling Group (#502), Night Service Group (#504), (#505).

Call Reporting

Centrex may provide call reporting and accounting services. However, if you do
not subscribe to this service, you can install call accounting devices and
printers that allow you to print call reports. To get a better idea of the call reporting capabilities available with your premises equipment, see “Call Reporting Devices (SMDR)” on page 7-7.
To set up a call accounting device or printer for call reporting, install the equipment according to the directions on page 2-13. Then use
Type (#608)

Fax Machines

Doorphone Alert Extensions (#606)
to identify up to five extensions
Pickup Group (#501),
or
Hunt Group
(See page 5-13.)
SMDR Record
to specify the type of calls that you want to record for call reporting.
Fax Machine Extensions (#601)
lets you identify an extension on which a fax machine is installed. If you also program the fax extension as an Intercom Calling button (by storing the extension jack number on a programmable button with a light), the button will show the status of the fax machine when it is in use or needs paper. Do not assign a fax machine’s primary line to any other extension. See “Fax Machines” on page 7-1 for more details on setting up and
using fax machines.

Music on Hold

Music on Hold (#602)
system, which can be connected to an RCA jack on the equipment controller (see page 2-13).
activates or deactivates an optional music-on-hold

Identifying the Equipment Features You Need

Table 4-6 shows the optional features available with your premises equipment. Make a check mark in the rightmost column to indicate whether you need the feature shown on that row. The page numbers where you can find programming information are shown in the “For instructions, see. . .” column. Two types of features are included in the table:
System Programming.
■
Programming are identified by the procedure code that is used to program the feature (# and three digits). For these features, the “For
instructions, see . . .” column of Table 4-6 shows the words System
Programming.
Features that are available through System
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■
Telephone Programming.
Features that are available to an extension through telephone programming are identified by the words Telephone Programming in the “For instructions, see . . .” column of the table.
Table 4-6. Optional Features Available for Premises Equipment
Feature
Description
For instructions, see...
✔
Abbreviated Ringing
Auto Dialing Buttons
Automatic Extension Privacy
Button-Down Mode
Call Forwarding
Call Pickup
Call Reporting (SMDR)
Dial Mode
Affects ringing for calls received at an extension when the user at the extension is
busy on another call.
One-touch dialing of Centrex feature codes or phone numbers.
Prevents other extensions from picking up calls on an extension’s primary line.
Sets ringing on all secondary
lines to “no ring,” so users at covering extensions must
press line buttons to answer calls on them.
Forwards calls to another extension.
Enables users to answer calls
ringing at other extensions.
Records calling statistics for each extension.
Sets the equipment controller to send touch-tone or rotary signals on a line.
Page 5-11 System Programming (procedure #305)
Page 5-15
Telephone Programming
Page 5-11 System Programming (procedure #304)
Page 5-10 System Programming (procedure #723)
Page 5-16
Telephone Programming
Page 5-16
Telephone Programming
Page 5-13 System Programming SMDR Record Type (procedure #608)
SMDR Top of Page (procedure #609)
Page 5-11 System Programming (procedure #201)
Dialing Restrictions
Display Language
Limits the use of a line assigned to an extension.
Limits calling from both
primary and secondary lines at an extension.
Sets up customized
restrictions and permissions for calls made from each extension.
Sets display on MLS-34D or
MLS-12D phone to English,
Spanish, or French.
Page 5-11
System Programming
Line Access Restrictions (procedure #302). Page 5-12
System Programming
Outgoing Call Restriction (procedure #401). Page 5-12
System Programming
Disallowed Phone Number Lists (procedure #404) Allowed Phone Number Lists (procedure #407)
Emergency Phone Number List (procedure #406) System Password (procedure #403) Allowed List Assignments (procedure #408)
Disallowed List Assignments (procedure #405)
Page 5-14
Telephone Programming
Marked System Speed Dial numbers
Page 5-11
System Programming (procedure #303)
Customizing Your System
4-25
Page 74
Feature
Do Not Disturb
Description
Prevents the phone from ringing.
For instructions, see...
Page 5-16
Telephone Programmjng
Requires a button with a light.
✔
Doorphones
Emergency
Phone
Numbers
Exclusive Hold
Fax Machines
Group Calling
Group
Paging
Group Pickup
Lets visitors signal one or more extensions from a doorphone.
Defines a list of numbers that can be dialed by any extension, regardless of
equipment dialing restrictions. (Does not circumvent Centrex dialing restrictions.)
Prevents other extensions that share the same line from picking up a call on hold.
Identifies a fax machine extension.
Rings all extensions in a Calling Group.
Pages all extensions in a Calling Group over their MLS-model phone speakers.
Picks up any ringing call for a pickup group.
Page 5-13
System Programming
Doorphone 1 Extension (procedure #604) Doorphone 2 Extension (procedure #605) Door hone Alert Extensions (procedure #606)
Page 5-12 System Programming (procedure #406)
Page 5-16
Telephone Programming
Page 5-13 System Programming (procedure #601)
Page 5-13
System Programming
Calling Group Extensions (procedure #502) Page 5-16
Telephone Programming
Page 5-13
System Programming
Calling Group Extensions (procedure #502) Page 5-16
Telephone Programming
Page 5-13
System Programming
Pickup Group Extensions (procedure #501) Page 5-16
Telephone Programming
Hotline
Intercom Calling
Last Number Redial
Loudspeaker Paging
Message Lights
4-26
Customizing Your System
Lets the user at an extension ring another extension (or the loudspeaker paging system) automatically, simply by lifting the handset of the Hotline phone.
Lets users who have MLS- or MLC-model telephones make calls within the system using the [
Intercom ] buttons on their
phones, so at they do not tie up their primary lines.
Redials the last inside or outside number dialed.
Connects a user to an (optional) loudspeaker paging system.
Turns the message light on an MLS- or MLC-model phone on or off.
Page 5-13 System Programming (procedure #603)
Page 5-15. Also see Appendix B
Page 5-16
Telephone Programming
Page 5-16
Telephone Programming
Page 5-16
Telephone Programming
Message Light On Message Light Off
Page 75
Page 76

Programming Reference

Contents
5
Alphabetical List of System and Telephone Programming Procedures
Overview Terminology System Programming Procedures
■
Programming Overlays
Telephone Programming Procedures
Programming Telephone Buttons
■
Changing Settings after Installation
■
Changing the System Clock
■
Adding Modules and Centrex Extensions
Hotline Phone and Doorphone Extensions
System Programming Reference System Speed Dial Programming Reference Telephone Programming Reference
5-ii 5-1
5-2 5-3
5-4 5-4
5-4 5-7
5-7 5-9 5-9
5-10 5-14 5-15
Programming Reference
5-i
Page 77
Page 78
Page 79
■
■
Brief summaries of all programming procedures are also provided on the inside back cover of this book.

Terminology

The following terms are used in this chapter. In addition, you may wish to review the “Terminology” section of “About This Guide,” which defines basic terms used throughout this guide, or the Glossary, which defines all terms.
Preparation.
See page 5-4, “Telephone Programming Procedures,”
to find out how you prepare for Telephone Programming.
Instructions.
To program a phone from extension jack 10 or 11, use
the instructions at the top of page 5-15. To program at the extension,
use the instructions at the bottom of page 5-16, then go to the appropriate box on page 5-16 for instructions on programming an individual feature.
Auto Dial button
Button-Down Mode
Centralized Telephone
Programming
Equipment
feature
Equipment
feature button
Extension Programming
A programmable telephone button that lets you dial a series of digits simply by pressing that button. An Auto Dial button can be used to store a Centrex feature code or a telephone
number so that it can be dialed with one touch. See also Equipment feature button and Programmable button.
A system-wide setting that causes incoming calls on secondary lines to flash, but not ring. A user must press the
line button down to pick up the call. This feature enables the equipment to imitate the way lines ring at extensions on key
telephone systems, such as the 1A Key System. A method of telephone programming that lets you program
individual extensions in the system from an MLS-34D or MLS-12D phone at extension jack 10 or extension jack 11. Centralized Telephone Programming is an alternative to
Extension Programming.
A feature provided by your equipment controller (as opposed to a service provided by Centrex).
A programmable telephone button on an MLS- or MLC-model telephone that enables you to access an equipment feature simply by pressing that button. See also Auto Dial button
and Programmable button.
A method of telephone programming that lets users program their own extensions from their MLS- or MLC-model phones.
Extension Programming is an alternative to Centralized
Telephone Programming.
Premises
equipment
5-2
Programming Reference
The AT&T equipment controller and MLS- and MLC-model telephones that you purchased as part of your system, plus all other telecommunications devices that are connected to your equipment controller. For purposes of this guide,
premises equipment does not include any equipment that connects directly to Centrex lines without going through the equipment controller.
Page 80
Programmable button
A telephone button that can be set up to access a feature. On MLS- and MLC-model phones, programmable buttons can be used as Auto Dial buttons (for one-touch dialing of Centrex feature codes or telephone numbers) or equipment feature buttons.
System Programming
Designates the way the premises equipment works for your
business on a system-wide basis. System Programming requires an MLS-34D or MLS-12D phone and must be done
from extension jack 10 or extension jack 11.
Telephone Programming
Customizes ringing or adds special dialing features for extensions, to meet the needs of individual users. Telephone
Programming can be done either centrally (see Centralized Telephone Programming) or from the user’s own extension (see Extension Programming).

System Programming Procedures

In general, you can program the premises equipment in one of two ways:
Direct Method.
■
by dialing the code for that procedure.
■
Cycle Method.
numerical order by pressing [
programming overlays on pages 5-5 and 5-6). This method is best for
programming the premises equipment for the first time or for changing a series of related settings.
NOTE:
You can be talking on the phone while you program. This is useful if you need to talk with someone at the AT&T Helpline about programming. However, you must call before you enter programming mode, and you must use the handset to talk, not the speaker and microphone.
With this method, you access a programming procedure
With this method, you cycle through the procedures in
Next Procedure
] or [
Prev Procedure
] (see the
Review the following two procedures before you start to program, as they may facilitate your programming task:
Button-Down Mode (#723)
■
adjusts ringing for all phones connected to your equipment controller. Designed for people who are accustomed to 1A Key systems, this feature causes incoming calls on secondary lines to flash (but not ring). To pick up a call, a user must press the line button. This prevents users from accidentally answering incoming calls on secondary lines when they are trying to place calls on their primary lines. Only the receptionist’s phone at extension jack 10 follows the premises
equipment defaults (“immediate ring” for the primary line and “delayed
ring” for secondary lines). The default for Button-Down Mode is “Not
Active.”
Programming Reference
5-3
Page 81
■
Copy Settings (#399)
Abbreviated Ringing settings as well as Fax Machine extensions, equipment dialing restrictions, and group assignments from one extension to another; it does not copy line assignments, line ringing settings, or button programming—see page 5-11 for a list of the specific
programmed settings that are copied. To save time, you can program one extension for each type of phone connected to the equipment controller, and then use Copy Settings to program other phones of the same type. For example, you can program one MLS-12D phone and then copy its settings to other extensions that have MLS-12D phones.

Programming Overlays

System Programming requires a programming overlay placed over the phone’s dial pad.
During System Programming, the normal functions of several buttons on the
display phone at extension jack 10 or 11 change. For example, the left [ button becomes [ mode. To identify these buttons while programming, place the appropriate
programming overlay (provided with the premises equipment) on the dial pad of the phone at extension jack 10 or 11. Figures 5-1 and 5-2 show the
programming overlays for the MLS-34D and MLS-12D phones, and explain what the special buttons do while programming.
System Program
copies Automatic Extension Privacy and
Intercom
]
], the button used to enter System Programming

Telephone Programming Procedures

Two methods can be used to program telephones:
■
Centralized Telephone Programming
Extension Programming
■
from an MLS- or MLC-model phone at the
extension being programmed.
During Centralized Telephone Programming, the display phone at extension jack 10 or 11 takes on the characteristics of the telephone being programmed, including any System Programming and the lines assigned to the phone. Make sure the programming phone is as large as the largest phone connected to the equipment controller, because an MLS-12D phone cannot program an MLS-34D phone. When you enter Centralized Telephone Programming, green lights appear next to any line buttons that are already assigned so that you do not attempt to program over them.

Programming Telephone Buttons

Telephone buttons without lines assigned to them are programmable buttons.
Programmable buttons that are used to store outside telephone numbers,
Centrex extension numbers, or Centrex feature codes are called Auto Dial
buttons, because pressing the button automatically dials the number stored on
the button.
from extension jack 10 or 11
5-4
Programming Reference
Page 82
Page 83
Next Procedure/ Prev Procedure
Cycle forward/backward through the programming procedures. You can use these buttons to select a procedure.
Next Item/Prev Item
Cycle forward/backward through a procedure’s
parameters. A parameter is usually an outside line, an extension, or a telephone list entry. If a procedure has two parameters (for example, a line and extension), Next Item/Prev Item affects only the second one.
Next Data/Prev Data
Cycle forward/backward through the valid data entries. These buttons work only for fixed data, such as a line or extension jack number. They do not work for variable data such as date, time, password, telephone numbers, or doorphone assignments.
Remove
Returns the current setting to the factory setting.
System Program
(Intercom) Starts the System
Programming process.
Central Tel Program
(Intercom)
Starts the Centralized Telephone Programming process (that is, customizing individual telephones remotely from the phone at extension jack 10 or 11).
Next
Procedure
Prev
Procedure
System
Program
Feature
Next Item
Prev Item
Central
Tel Program
Next Data
Prev Data
PARTNER™ Plus/
Programming Overlay for MLS-12D Telephones
PARTNER Plus: Use at Ext. 10 only
PARTNER
II Communications Systems
II:
Use at Ext. 10 or 11 only
Remove
Feature
When followed by [ 0 ][ 0 ], enters or exits programming mode.
Enter
Enter
Ends an entry of variable length, such as a telephone number in an Allowed Phone Number List.
Wild
Enters a “wildcard” (a character that matches any digit dialed) in telephone numbers in Allowed
Wild
and Disallowed Number Lists.
NOTE:
This is a full-size illustration. If you to se the original, you can order a replacement by calling 1 800 432-6600 in the U.S. or
AT&T 518-455-320
1 800 255-1242 in Canada. The order number is 518-455-320.
Figure 5-2. Programming Overlay for MLS-12D Phone
5-6
Programming Reference
Page 84
In addition, you can use programmable buttons to store equipment feature codes or extension jack numbers for one-touch Intercom Calling. These buttons are called equipment feature buttons. (The equipment features that you can program onto buttons are described on page 5-16. Note that some equipment features require programming on a button with lights so that you can see whether a feature is turned on or off.)
NOTE:
If your business includes industry-standard feature phones with programmable
buttons, follow the directions for those phones in order to program any telephone numbers or Centrex feature codes that you want to make available for one-touch access. Feature phones may also support speed dialing for faster access to Centrex services.
Figure 5-3 illustrates the MLS- and MLC-model phones: MLS-34D, MLS-12D,
MLS-12, MLS-6, and MLC-6. As you program buttons, mark their functions on the phone’s labeling sheet (see the examples in Figure 5-3).

Changing Settings after Installation

As your business grows or changes, you will probably need to change the way your premises equipment was originally programmed. The following sections describe some instances where such changes might be needed.

Changing the System Clock

You may need to change or reset the system clock for daylight saving time, after a prolonged power failure, or after a complete equipment reset. To change the system clock, use the following procedures:
System Date (#101)
■
■
System Day (#102) System Time (#103)
■
to set the month, day, and year
to set the day of the week
to set the hour and minute.
Programming Reference
5-7
Page 85
MLS-34D
Phone
Line/Programmable Buttons
Any unused line button is programmable
MLS-12
Phone
Programmable Buttons
(without lights)
Line/ Programmable Buttons
(with lights) Any unused Iine button is programmable
Behind Cover
MLC-6 Phone
MLS-6 Phone
MLS-12D
Phone
Programmable
Programmable
Buttons
(without lights)
Buttons
(with lights)
Any unused
line button is
programmable
Line/
Line/Programmable Buttons
Any unused line button is programmable
Figure 5-3. Programmable Buttons and Labeling Sheets on MLS- and MLC-Model Phones 5-8
Programming Reference
Page 86

Adding Modules and Centrex Extensions

If you add new modules to your equipment controller after installation, you will need to identify new extensions and to change Hotline and doorphone extensions (if those devices are installed). Likewise, if you add a Centrex extension after installation, you must adjust programmed settings to accommodate the new extension. You may want to use Copy Settings (#399) to copy some settings—see page 5-11 for information on the programmed settings that can be copied with this feature. (If you are using new extensions for auxiliary equipment, see Chapter 7.)
Use the following procedures to adjust the programming for your premises equipment when you add a module or an extension:
■
Line Assignment (#301)
to an extension that you added. If it is not, use this procedure to assign the line. (You can also use this procedure to assign a secondary line to the extension.)
■
Line Ringing
(Centralized Telephone Programming) specifies when a
primary or secondary line will start ringing at the extension.
■
Line Access Restriction (#302)
the lines assigned to the extension can place or receive calls on the line.
■
Dial Mode (#201)
identifies a line as rotary or touch-tone.
lets you verify that the primary line is assigned
determines whether users on each of
Hotline Phone and Doorphone Extensions
Hotline phones and doorphones should be connected to the last available
extension jacks on the last installed 206 module in the equipment controller. If you add modules to your existing configuration and you have Hotline phones or
doorphones connected to it, you will need to move the equipment (see page
2-14) and change the following programming procedures:
■
Hotline (#603)
■
Doorphone Extensions (#604 and #605)
to identify the new Hotline extension.
extension(s).
■
Line Assignment (#301)
to remove the primary line from the new Hotline
phone and/or doorphone extensions.
NOTE:
Remember to reassign the primary lines to the extension jacks where Hotline
phones and/or doorphones were previously installed.
to identify the new doorphone
Programming Reference
5-9
Page 87
Page 88
LINES
DIAL MODE
Identifies individual lines as touch­tone or rotary. You may also need to adjust the Rotary Dialing Timeout (#108).
DIAL #201 DIAL a line jack number
1 = Touch-Tone ✔ 2 = Rotary
PRESS [
HOLD DlSCONNECT TIME
Selects the signal that the equipment controller uses to detect when a caller on hold hangs up. Change the setting to “long” if the equipment controller discon­nects callers on hold before they hang up, or to “short” if users get dial tone when trying to retrieve calls left on hold.
DIAL #203 DIAL a line jack number DIAL
PRESS [
Next Item
] to program another line
1 = Long (450 msec) ✔
2 = Short (50 msec)
Next Item
] to program another line
✔
= Factory Setting
= Troubleshooting procedure
(see Appendix C)
EXTENSIONS
LINE ASSIGNMENT
Assigns the Centrex lines that are available at an extension, in consecutive order. The default order of line assignment is from left to right, starting with the bottom row of line
buttons on an MLS- or MLC-model phone. To put the lines in a different order, first use this procedure to remove all assigned lines; then assign lines in the desired order.
DIAL #301
DIAL an extension jack number
A red LED lights next to each line button that has a line assigned.
To remove all existing line assign­ments, press [ selecting a line.
DIAL a line jack number (01 to 24)
If that line is currently assigned, a green LED will light next to the button
it is assigned to.
DIAL
1 = Assigned 2 = Not Assigned 3 = Select Button and then press
If you use option 3 after a line has been assigned, the line moves from the old button to the new button you select.
PRESS [
Next Item
this extension
To program another extension:
PRESS [
Next Procedure
new extension jack number, and repeat above steps
NOTE: Use the Line Ringing procedure (page 5-15) to identify when each line should start ringing at an extension. See page 3-3 for information on default line assignments.
LINE ACCESS RESTRlCTION
Restricts calling on specified lines at the
specified extension.
DIAL #302
DIAL an extension jack number
DIAL a line jack number DIAL
1 = No Restriction ✔ 2 = Outgoing Only 3 = Incoming Only 4 = No Access (line appears on
PRESS [
Next Item
To program another extension:
PRESS [
Next Procedure
new extension jack number, and repeat above steps
Remove ] before
a line button to assign the line to that button
] to program another line for
] [
Prev Procedure
button, but you can use line only to pick up a held call)
], enter a
] to program another line
] [
Prev Procedure
], enter a
DISPLAY LANGUAGE
Identifies the language used for display
messages if the specified extension has
an MLS-34D or MLS-12D phone. DIAL #303
DIAL an extension jack number
1 = English ✔
DIAL
2 = Spanish 3 = French
PRESS [
Next Item
] to program another
extension
AUTOMATIC EXTENSION PRIVACY
Prevents other extensions with the same line from joining a call on the specified extension. You can also use this proce­dure to prevent users from interrupting calls on an extension with a fax machine or modem. Privacy can also be pro­grammed on a button for manual use (see page 5-16).
DIAL #304 DIAL an extension jack number DIAL
1 = Assigned
2 = Not assigned
PRESS [
Next Item
] to program another
extension
ABBREVIATED RINGING
Determines how calls ring at an extension when the extension is busy on a call on a different line. If Abbreviated Ringing is on and you are busy on a call, the call rings once; the green button for the line continues to flash until you answer the call or the caller hangs up.
DIAL #305 DIAL an extension jack number
DIAL
1 = Active (1 ring) ✔ 2 = Not Active (repeated ringing)
PRESS [
COPY SETTINGS
Copies following settings from one
Next Item
extension.
] to program another
extension to another: #302 Line Access Restriction
#303 Display Language #304 Automatic Extension Privacy #305 Abbreviated Ringing #401 Outgoing Call Restriction #405 Disallowed List Assignments
#408 Allowed List Assignments #501 Pickup Group Extensions #502 Calling Group Extensions #504 Night Service Group Extensions #505 Hunt Group Extensions #601 Fax Machine Extensions
DIAL #399 DIAL a source extension jack number DIAL target extension jack numbers
Programming Reference
5-11
Page 89
Page 90
GROUPS
AUXILIARY EQUIPMENT
PICKUP GROUP EXTENSIONS
Assigns an extension to a Pickup Group. Calls to a Group can be picked up by any user.
DIAL #501 DIAL a group number (1 to 4) DIAL an extension jack number
DIAL
1
= Assigned to group
2
PRESS [
= Not assigned to group
Next Item
] to assign another extension
✔
To program another group:
PRESS [
Next Procedure
] [
Prev Procedure
] enter a
new group number, and repeat above
CALLING GROUP EXTENSIONS
Assigns extension to a Calling Group. Anyone can ring or page all extensions in a Group (first user to pick up call is connected).
DIAL #502 DIAL a group number (1 to 4) DIAL an extension jack number DIAL
1
= Assigned to group
2
PRESS [
= Not assigned to group
Next Item
] to assign another extension
✔
To program another group:
PRESS [
Next Procedure
] [
Prev Procedure
], enter a
new group number, and repeat above
NIGHT SERVICE BUTTON
Programs a button to turn Night Service on and off. Option 3 assigns Night Service to a button of the MLS-display phone at extension jack 10. If a System Password is programmed, you must enter it to turn Night Service on or off,
DIAL #503 DIAL
1
= Assigned to standard button
2 = Not assigned ✔ 3
= Select button—and then press a
If you use Option 3 been assigned, the Night Service button moves from the old button to the new button (overriding any
previously programmed feature on that button).
NIGHT SERVICE GROUP EXTENSIONS
Assigns an extension to the Night Service
programmable button
after
a Night Service button has
Group. When Night Service is on, lines set to “no ring” or “delayed ring” in the Group change to “immediate ring,” and if a System Password has been programmed, people in the Group can only dial emergency and Marked System Speed Dial numbers
DIAL #504 DIAL an extension jack number DIAL
1 = Assigned to group
2
PRESS [
HUNT GROUP EXTENSIONS
Assigns extension to a Hunt Group. Intercom calls to a Group ring at the first non-busy extension, the next call to that Group will not ring there unless all other Group phones are busy. (NOTE: This feature is not recom­mended for most systems. If Centrex Hunt Groups are available, use them instead.)
Next Item
] to assign another extension
= Not assigned to group
✔
DIAL #505 DIAL a group number (1 to 6) DIAL an extension jack number DIAL
1
= Assigned to group
2
PRESS [
= Not assigned to group
Next Item
] to assign another extension
✔
To program another group:
PRESS [
Next Procedure
] [
Prev Procedure
] enter a
new group number, and repeat above
FAX MACHINE EXTENSIONS
Identifies an extension to which a fax machine is connected. To monitor the status of the fax machine from an MLS­model phone in another location, see “Fax Management” (the bottom half of this box).
DlAL #601 DIAL an extension jack number DIAL
PRESS [
— — — — — — — — — — — —
FAX MANAGEMENT
To monitor the status of fax machines from MLS-model phones:
MUSIC ON HOLD
Activates and deactivates the MUSIC ON HOLD jack. When active and an audio source is connected to the jack and turned on, callers on hold hear music or recorded messages.
1 = Assigned 2 = Not Assigned ✔
Next Item
] to identify another
extension
Use Fax Machine Extensions (#601)
1. procedure to identify extension jacks
where fax machines are connected. On an MLS-model phone, program a
2. button with lights as an Intercom
Calling button for the fax extension jack number (for each fax extension to
be monitored). Label the Intercom
Calling button appropriately (for example, “FAX 1012”).
DIAL #602
1 = Active ✔ 2 = Not Active
HOTLINE
Identifies a “Hotline” extension and an “alert” extension. When a user picks up the Hotline phone, it rings the alert extension. The Hotline phone should be a standard touch-tone phone; the alert extension can have any type of phone or can be the loudspeaker paging system.
Use #301 to remove any Centrex lines from this extension. Use #502, #504, and #505 to remove this extension from Calling, Night Service, and Hunt Groups
DIAL
#603
DIAL an extension jack number to identify
the Hotline
DIAL an extension jack number (except the
Hotline to identify the alert extension or [ 7 ] [ 0 ] if the loudspeaker paging system will be the alert extension
To remove the Hotline and alert:
PRESS [
Remove
]
DOORPHONE 1 EXTENSION
Identifies a doorphone extension. When a person uses the doorphone, it signals all the alert extensions for the doorphone at the same time.
Use #301 to remove any Centrex lines from this extension. Use #502, #504, and #505 to remove this extension from Calling, Night Service, and Hunt Groups.
DIAL #604 DIAL an extension jack number (12–15),
18–21, 24–27, 30–33)
DOORPHONE 2 EXTENSION
See “Doorphone 1 Extension.” DIAL #605 DIAL an extension jack number (12–15,
18–21, 24–27, 30–33)
DOORPHONE ALERT EXTENSIONS
Identifies up to 5 extensions to be signalled by a doorphone (identified using proce­dures #604 or #605). When a person uses the doorphone, it signals all alert exten­sions at the same time. If the alert extension is an MLS-model phone, the call signals with a unique “ding-dong” sound to distinguish it from other calls.
DIAL #606 DIAL an extension jack number (except a
doorphone extension)
DIAL
1 = Not an alert ✔ 2 = Doorphone 1 alert 3 = Doorphone 2 alert 4 = Doors 1 and 2
PRESS [
SMDR RECORD TYPE
Identifies the type of calls a call reporting
Next Item
(up to 5 alert extensions per doorphone)
] to select another extension
device should record. For each call, the equipment controller records the date and time, call duration, extension jack number, dialed number, and type of call.
DIAL #608 DIAL
1 = All calls ✔ 2 = Outgoing calls only
SMDR TOP OF PAGE
Notifies the equipment controller that the printer has been aligned to the top of a new page. The controller responds by printing the call report page header.
DIAL #609
✔
= Factory Setting
Programming Reference
5-13
Page 91
System Speed Dial
Programming Reference
From the MLS display phone at extension jack 10 or 11, you can store up to 60 telephone numbers as System Speed Dial numbers. Once System Speed Dial numbers have been stored, any user can dial a number automatically by pressing [
NOTE: In addition, each extension can store up to 20 Personal Speed Dial numbers (80-99) for the private use of the user at the extension; see page 5-15 for programming instructions.
TO PROGRAM A SYSTEM SPEED DIAL NUMBER
(from the MLS display phone at extension jack 10 or 11 only)
PRESS [
Feature ] [ 0 ] [ 0 ] to enter program mode
TO REMOVE A SPEED DIAL NUMBER
(from the MLS display phone at extension jack 10 or 11 only)
PRESS [
Feature
] [ 0 ] [ 0 ] to enter program mode
Feature ] + a 2-digit code (from 20–79).
PRESS [ Feature ] PRESS [ Feature ] DIAL DIAL
To program another Speed Dial number, or to change a
number, repeat the last three steps
PRESS [
a 2-digit code (20 to 79) DIAL the 2-digit code (20 to 79) for the System Speed Dial
the dial-out code (if applicable) and the telephone number—up to 20 digits including special functions
(see “Entering Special Characters in Speed Dial
and Auto Dial Numbers” below)
To mark a number which overrides dialing
restrictions), dial [
Feature
] [ 0 ] [ 0 ] to exit program mode
★ ] before the telephone number
PRESS [ To remove another Speed Dial number, repeat the last three steps
PRESS [
number to be removed
Mic
]
Feature ] [ 0 ] [ 0 ] to exit program mode
IMPORTANT:
If you program 911 or other emergency numbers as Speed Dial numbers and want to place test calls:
1.
Remain on the line and briefly explain to the dispatcher the reason for the call before hanging up.
2.
Perform such activities in off-peak hours, such as early morning or late evening.
Entering Special Characters in Speed Dial and Auto Dial Numbers
These special characters can be included in Personal Speed Dial, System Speed Dial, and Auto Dial numbers.
Function Button Display
Pause
Recall
Stop
Touch-
Hold ]
[
[
Spkr
[
Mic
[
Transfer
]
]
P
R
S
T
]
Tone Enable
What It Does
Inserts a 1.5 second pause in dialing sequence, to wait for a response such as a dial tone or a computer voice message.
Example: To call an answering machine at 555-0529 (with 9 as the dial-out code), wait 15 seconds, and then dial 10 to retrieve messages, enter [ 9 ] [ 5 ] [ 5 ] [ 5 ] [ 0 ] [ 5 ] [ 2 ] [ 9 ] [
Hold
] [
Hold
] [
Hold
] [
Hold
] [
Hold
] [
Hold
[
] [ 1 ] [ 0 ].
Sends a timed switchhook flash over the phone line. Use Recall only as the first entry in a Speed Dial number.
Example: To use a favorite Centrex feature, you have to send a timed switchhook flash and then dial 388. Enter [
Spkr
] [ 3 ] [ 8 ] [ 8 ].
Stops dialing so that the user can enter additional digits, such as a password or credit card number. After a stop, the user can press [
NOTE: Since MLS-6 phones have no [
Feature ] and the Speed Dial code again to continue.
Mic ] button, you must program numbers that include the Stop
function from the phone at extension jack 10.
Example: Your local bank-by-phone service requires you to enter a password before the account number. To program a Speed Dial number to call the bank at 555-7898, include a stop for manually entering the password, and continue with the bank account number (679 556 88), enter [
[ 7 ] [ 8 ] [ 9 ] [ 8 ] [
Mic
] [ 6 ] [ 7 ] [ 9 ] [ 5 ] [ 5 ] [ 6 ] [ 8 ] [ 8 ].
Sends touch-tone digits over a rotary line to electronic equipment, such as an answering machine or
bank computer.
Example: Your system is connected to rotary lines but you want to call an answering machine at
555-3454 to retrieve messages. Since the answering machine requires touch tones, enters [
3 ] [ 4 ] [ 5 ] [ 4 ] [ Transfer ]. All digits pressed during the rest of the call are sent as touch tones.
[
Hold
] [
Hold
] [
Hold
5 ] [ 5 ] [ 5 ]
] [
Hold
]
5 ] [ 5 ] [ 5 ]
5-14
Programming Reference
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Telephone Programming Reference

Centralized Telephone Programming
Use Centralized Telephone Programming to program features or store telephone numbers for individual extensions. Line Ringing must be programmed from an MLS display phone at extension jack 10 or 11 (using Centralized Telephone Programming); all other features can be programmed on an MLS- or MLC-model phone at the user’s extension (see “Extension Programming” on next page).
Place the Programming Overlay on the dial pad of the MLS display phone at extension jack 10 or 11
TO START PROGRAMMING
PRESS [ PRESS [ PRESS [
PRESS [ DIAL the extension jack number of the MLS- or
MLC-model phone to be programmed
Buttons on which lines are assigned for the extension light up to show the current Line Ringing setting; remaining buttons can be programmed with Auto Dial numbers, extension jack numbers, or features
Feature
] [ 0 ] [ 0 ]
System Program
System Program
Central Tel Program
]
]
]
TO PROGRAM ANOTHER FEATURE AT THE SAME EXTENSION
After you finish changing a setting, simply continue with the instructions in the box shown for the new feature on page 5-16
TO CHANGE SETTING FOR ANOTHER EXTENSION
PRESS [
Central Tel Program
DIAL the extension jack number for the new extension
]
TO ERASE A FEATURE OR AUTO
DIAL BUTTON
PRESS the programmed button PRESS [
Mic
]
TO END PROGRAMMING
PRESS [
Feature
] [ 0 ] [ 0 ]
LINES
LINE RINGING
Determines when calls ring at the extension:
●
Immediate ring (green steady)
● Delayed ring—starts ringing after about
20 seconds (green slow flashing)
●
No ring (green fast flutter)
PRESS each line button until the desired
ringing option appears in the display
*IMPORTANT:
If you program 911 or other emergency numbers as Speed Dial numbers and want to place test calls:
Remain on the line and briefly explain
1. to the dispatcher the reason for the call before hanging up.
2. Perform such activities in the off-peak hours, such as early morning or late evening.
SPEED DIALING
PERSONAL SPEED DIAL NUMBERS
Stores up to 20 Personal Speed Dial numbers for a user’s extension. Users with MLS- or MLC-model phones can program Personal Speed Dial numbers.
PRESS [ DIAL a 2-digit code (80 to 99) DIAL the dial-out code (if you must dial one
After programming, the user can dial the number automatically by pressing [
plus the 2-digit code.
AUTO DIALING*
Stores outside phone numbers. Centrex feature codes, or Centrex extension numbers on programmable buttons of MLS-
or MLC-model phones, so users can dial simply by pressing the programmed buttons.
PRESS a programmable button
To program a phone number:
DIAL the complete number exactly as you
To program a Centrex feature code:
DIAL the feature code (to use the Centrex
Feature
]
to make an outside call) and the phone number—up to 20 digits including special characters (see page 5-14)
Feature ]
would dial it manually, including a dial-out code if you must dial one to place an outside call (the number can be up to 20 digits, including special characters; see page 5-14)
feature while on a call, a Recall signal can be included as the first character
stored on the button)
ONE-TOUCH INTERCOM CALLING
If you program an extension jack number
on a programmable button on an MLS- or MLC-model phone, you can place an intercom call to the extension simply by pressing the programmed button (on a button with lights, the lights beside the
Intercom Calling button show calling activity at the extension).
PRESS a programmable button PRESS left [
Intercom
]
DIAL the extension jack number (to ring the
extension when the button is pressed)
or [ ★ ] plus the extension jack number (to
voice page the extension when the button is pressed)
Programming
5-15
Page 93
Telephone Programming Reference
EQUIPMENT FEATURES
DO NOT DISTURB TOUCH-TONE ENABLE
Prevents the phone from ringing; callers hear ringing (except intercom callers, who hear a busy signal). This feature is require touch-tone digits. After the user recommended only if someone else answers calls for your extension.
PRESS a programmable button with lights
Feature
PRESS [
EXCLUSIVE HOLD
Prevents other extensions that share a line
] [ 0 ] [ 1 ]
from picking up calls placed on hold.
Lets users with rotary lines use phone services such as “Bank by Phone” that
presses Touch-Tone Enable, all numbers
dialed during the call are sent as touch-
tone digits.
PRESS a programmable button
Feature
PRESS [
MESSAGE LIGHT ON
Turns on the Message light at an extension
] [ 0 ] [ 8 ]
with an MLS- or MLC-model phone. PRESS a programmable button PRESS a programmable button PRESS [
RECALL
Sends a timed switchhook flash over the phone line. This lets the user access
Feature
] [ 0 ] [ 2 ]
PRESS [
MESSAGE LIGHT OFF
Turns off the Message light at an extension
with an MLS- or MLC-model phone. Centrex services while on a call
PRESS a programmable button PRESS [
SAVE NUMBER REDIAL extension. You can use this feature at your Saves a telephone number into temporary memory if user presses the button before hanging up the call. Pressing the Save PRESS a programmable button Number Redial button then redials the
Feature
] [ 0 ] [ 3 ]
CALL FORWARDING
own extension or at the extension where
number, even after intervening calls.
NOTE: This feature can be programmed
onto more than one button. PRESS a programmable button PRESS [
Feature
] [ 0 ] [ 4 ]
LAST NUMBER REDIAL
Automatically redials the last telephone number dialed.
PRESS a programmable button PRESS [
PRIVACY
Prevents other extensions that share a line
Feature
] [ 0 ] [ 5 ]
from joining telephone conversations.
PRESS a programmable button with lights PRESS [
Feature
] [ 0 ] [ 7 ]
Feature
] [ 0 ] [ 9 ]
PRESS a programmable button
PRESS [
Feature
] [ 1 ] [ 0 ]
Forwards all calls to another system
you want your calls forwarded.
PRESS [
CALL PICKUP (any extension)
Picks up a call ringing at any other extension in the system (you cannot pick up an intercom call).
Feature
] [ 1 ] [ 1 ]
PRESS a programmable button PRESS left [
Intercom
] [ 6 ]
DIAL the extension jack number
GROUP PICKUP
Picks up a call ringing at any extension in a Pickup Group (you cannot pick up an intercom call). To define the Pickup Group, see System Programming procedure #501.
PRESS a programmable button DIAL left [
Intercom
] [ 6 ] [ 6 ]
DIAL the Pickup Group number (1–4)
LOUDSPEAKER PAGING
Connects the user to the (optional)
Requires a button with lights
loudspeaker paging system.
PRESS a programmable button
PRESS left [
Intercom
] [ 7 ] [
0
]
GROUP CALLING
Simultaneously places an intercom call to
all extensions in a Calling Group (see
System Programming procedure #502). The first user to answer is connected to the caller.
PRESS a programmable button
PRESS left [
Intercom
] [ 7 ]
DIAL a Calling Group number (1–4)
GROUP PAGING
Simultaneously places a voice-paging
intercom call to all extensions in a Calling
Group (see System Programming
procedure #502). When using this feature,
the caller hears a beep and begins
speaking; the caller’s voice is then heard
on the speakers of all system phones in
the Calling Group. The first user to answer
the call (by picking up the handset or
pressing the [
the caller.
Mic ] button) is connected to
PRESS a programmable button
PRESS left [
Intercom
] [ ★ ] [ 7 ]
DIAL a Calling Group number (1–4)
EXTENSION HUNT GROUP
Places a ringing or paging intercom call
to the next available extension in a Hunt
Group (see System Programming
procedure #505).
NOTE: This feature is not recommended for most systems. Centrex Hunt Groups
are available, use them instead.
For ringing the first available extension:
PRESS a programmable button
Intercom
DIAL left [
] [ 7 ] [ 7 ]
DIAL a Hunt Group number (1–6)
For paging the first available extension:
PRESS a programmable button
PRESS left [
Intercom
] [ ★ ] [ 7 ] [ 7 ]
DIAL a Hunt Group number (1-6)
DIRECT LINE PICKUP
Picks up a ringing, held, or active call on
a line. This feature is useful for accessing a call on a line that is not assigned to the
extension. PRESS a programmable button DIAL left [
Intercom
] [ 6 ] [ 8 ]
Extension Programming
Users can program features or store telephone numbers at their own phones using Extension Programming. Line Ringing must be programmed from the MLS display phone at extension jack 10 or 11 (using Centralized Telephone Programming); all other features can be programmed on an MLS- or MLC-model phone at the user’s extension.
TO PROGRAM OR CHANGE A PERSONAL SPEED DIAL NUMBER,
AUTO DIAL NUMBER, OR EQUIPMENT FEATURE:
PRESS [ Follow the boxed instructlons in “Centralized Telephone Programming”
(page 5-15) to program the first number or feature
To program more numbers or features, follow their boxed instructions
PRESS [
5-16
Feature
] [ 0 ] [ 0 ] to enter program mode
Feature
] [ 0 ] [ 0 ] when you are finished programming
Programming
TO REMOVE AN AUTO DIAL NUMBER OR EQUIPMENT
FEATURE FROM A BUTTON:
PRESS [
Feature
] [ 0 ] [ 0 ] to enter program mode
PRESS the programmed button PRESS [
Mic
]
To remove another number or feature, repeat the last two
steps PRESS [
Feature
] [ 0 ] [ 0 ] when you are finished programming
Page 94

Using Telephones

Contents
6
Overview Terminology MLS- and MLC-Model Telephones
■
Ringing Patterns and Dial Tones
■
Lights
■
Buttons and Indicators
■
Switchhook and Recall
■
Using the Handset, Speaker, and Microphone
Speakerphone Performance Tips
Standard Telephones
■
Switchhook
■
Limitations
■
Feature Phones
Combination Extensions Equipment Features Using Your Telephone
■
Accessing a Centrex Service
■
Placing a Call
■
Answering a Call
■
Putting a Call on Hold
■
Transferring a Call
■
Making a Conference Call
■
Joining a Call
■
Forwarding a Call
■
Loudspeaker Paging
■
Using the Message Light
■
Using Night Service
6-1 6-1 6-2
6-2 6-3 6-4 6-6 6-6 6-7
6-7 6-8
6-8 6-8
6-9 6-10 6-12
6-12 6-12 6-14 6-15 6-15 6-16 6-16 6-16 6-17 6-17 6-18
6-i
Page 95
Using Telephones

Overview

This chapter explains how to use your telephones. It does not provide detailed
instructions about using your Centrex services. See the Centrex documentation provided by your local telephone company for information on Centrex services.
6

Terminology

The following terms are used in this chapter. In addition, you may wish to review the “Terminology” section of “About This Guide,” which defines basic terms
used throughout this guide, or the Glossary, which defines all terms.
Centrex
extension
number Combination
extension
Equipment feature
Equipment feature button
Inside call
A short code (or “Centrex extension ID”) that can be used to dial another extension within the Centrex system. Typically, this is the last digits of the Centrex telephone number.
An extension that has two devices connected to it using a special connector called a bridging adapter. Combination extensions can connect two industry-standard devices or an industry-standard device and an MLS- or MLC-model phone, but not two MLS- or MLC-model phones.
A feature provided by your equipment controller (as opposed to a service provided by Centrex).
A programmable telephone button on an MLS- or MLC-model telephone that enables you to access an equipment feature simply by pressing that button.
A call made from an extension inside the Centrex system to another extension inside the Centrex system, using the Centrex extension number.
Using Telephones
6-1
Page 96
Intercom call
A call that is made using the [
Intercom
] button on an MLS- or
MLC-model telephone, to call another system extension
without tying up primary Centrex lines.
Outside call
A call made from outside the Centrex system to an extension within the Centrex system, or from inside the Centrex system to a number outside the Centrex system. If your Centrex
system uses a dial-out code (usually a “9”), you must dial it before you dial an outside telephone number.
Primary line
The main Centrex line assigned to an extension, generally
used to place and receive all calls for that extension. When a caller dials a phone number, the call rings immediately at the extension where the line is assigned as a primary line (unless line ringing is changed to let a user at another extension screen calls on the line). See also Secondary line.
Secondary line
A line assigned to an extension for call coverage purposes,
generally with delayed or no ringing. When a call comes in on the line, it rings first at the extension where it is assigned as the primary line; only if there is no answer does it ring at
the extension where it is a secondary line. See also Primary
line.
Standard
phone
An industry-standard touch-tone or rotary phone such as you might have in your home. Some standard phones include special feature buttons for frequently-used calling functions.

MLS- and MLC-Model Telephones

MLS-and MLC-model telephones have some buttons and indicators in common. Refer to pages 6-4 and 6-5 for an explanation of where they are and how they
work. Call handling instructions for MLS- and MLC-model telephones and
industry-standard phones begin on page 6-12.

Ringing Patterns and Dial Tones

Your Centrex system determines the ringing pattern you will generally hear when calls ring at your phone. (For example, there may be different ringing patterns
for inside and outside calls.) If someone makes an intercom call to your phone,
you will hear a ring and a beep (ring BEEP . . . ring BEEP . . . ring BEEP . . .).
When making most calls, you will hear the Centrex dial tone, indicating that you
are connected with a Centrex line. (If you press [ dial tone. See Appendix B for information on using the intercom button.)
Intercom
], you hear the intercom
6-2
Using Telephones
Page 97
Page 98

Buttons and Indicators

MLS-34D
Display
Line/Programmable Buttons
(32 with lights)
Primary Line Button Intercom Buttons
(2)
MLS-12D
Display
Programmable Buttons
(6 without lights)
MLS-12
Line/Programmable Buttons
(10 with lights)
Primary Line Button Intercom Buttons
The following buttons and displays appear on MLS- and MLC-model phones. (Some controls and indicators are not available on all phones.)
Display.
jack number calling when receiving an intercom call, and duration while a call is in progress. When programming, shows settings, options, and prompts.
Line/Programmable Buttons.
numbers, or programmed equipment features. When no line is assigned, the button may be programmed. The MLS-34D has 32 programmable buttons; the MLS-12D and MLS-12 have 16 programmable buttons (10 with lights); the MLS-6 and MLC-6 phones have 4 programmable buttons.
Primary Line Button.
Intercom Buttons. Use for Intercom calling. See Appendix B.
Other Buttons and Indicators
(MLS-34D and MLS-12D only) Shows date, day, and time when phone is idle, number dialed when placing a call, extension
Used for Centrex lines, programmed dialing sequences such as Centrex feature codes or telephone
The bottom leftmost line/programmable button, always used for the primary line assigned to the phone.
(shown in exploded views)
Feature. Conf (Conference). Use to access your Centrex conference calling. Transfer.
Use to change programmed settings or to access equipment features.
Use to access your Centrex call transfer.
NOTE:
You must subscribe to Centrex conference or transfer to use these services.
(2)
6-4
Using Telephones
Page 99
MLS-6
Line/Programmable
Buttons (4)
Primary Line Button
Intercom Buttons (2)
MLC-6
Earpiece Volume Control
Line/Programmable Buttons
Primary Line Button
Intercom Buttons
Hold.
Press to put a call on hold.
Spkr (Speaker)
so you can have a conversation without lifting the handset.
Mic (Microphone)
this button to turn off the microphone when you are using the built-in speaker. Leave on to use Hands-Free Answer on Intercom feature (see Appendix B).
Message Indicator. Volume Control Buttons.
■
To adjust ringer volume, press ▼ or ▲ while the phone is idle and the handset is on the phone.
■
To adjust speaker volume, press ▼ or ▲ while listening to a call through the speaker.
■
To adjust handset volume, press ▼ or ▲ while listening through the handset.
On/Off
(MLC-6 only). Turns the handset on and off, (You must turn the handset on to make calls.)
Status
(MLC-6 only). Quickly updates the display on the MLC-6 handset.
Talk
(MLC-6 only). Lights when handset is lifted and turned on.
Charge (MLC-6
(all models except the MLC-6). Press to dial without lifting the handset. Turns on speaker and microphone (if available),
(MLS-34D, MLS-12D, and MLS-12 only). The light next to this button shows when the microphone is turned on; press
Lights when someone signals you with the Message Light On feature.
Press
▼
to decrease or ▲ to increase the volume of the ringer, speaker, and handset.
only). Lights when handset is placed on the base and handset batteries are charging.
Using Telephones
6-5
Page 100

Switchhook and Recall

When you are on a call using an MLS- or MLC-model phone, pressing the switchhook disconnects you from the call. To access Centrex services when you are on a call, use the Recall feature to execute a timed switch hook flash (see page 6-12). You can program this feature onto a button on your telephone (see page 5-16). (Recall disconnects an intercom call.)

Using the Handset, Speaker, and Microphone

Every MLS-model telephone has a speaker, which you can turn on by pressing [
Spkr
]. When the green light next to [
MLS-34D, MLS-12D, and MLS-12 phones also have microphones. On these phones, pressing [ addition, you can turn just the microphone on and off by pressing [ the green light next to [
The call handling instructions in this chapter explain how to use the handset to make and answer calls. However, if you prefer to dial and conduct calls without lifting the handset, you can use the speaker and the microphone instead. Use the following techniques to make calls with the speaker and (if you have one) the microphone:
Spkr
Spkr
] is on, the speaker is on.
] turns on both the speaker and the microphone. In
Mic
]. When
Mic
] is on, the microphone is on.
To make a call without lifting the handset, press [
■
Spkr
] to `get a dial tone; then dial the number, and you will hear the call ringing. If you have a microphone, it is turned on automatically when you press [
Spkr
] (if it is not
on already); when the other party answers, you can talk without lifting the
handset. On MLS-6 phones (which have no microphone), lift the handset
to talk when the other party answers. To turn off the microphone when you are using the speaker, press [
■
Mic
].
This will mute your voice so that the other party cannot hear you.
■
If you are already on a call (on an MLS-34D, MLS-12D, or MLS-12 phone),
you can switch from the handset to the speaker and microphone by
pressing [
Spkr
] and hanging up the handset. Conversely, if you are
using the speaker and microphone and want to switch to the handset, lift
the handset and the speaker and microphone will turn off.
■
Use the Hands-Free Answer on Intercom (HFAI) feature (on an MLS-34D, MLS-12D, or MLS-12 phone), to answer voice paging calls without lifting the handset (see Appendix B).
6-6
Using Telephones
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