AT&T Network Adapter 25 User manual

AT&T
555-530-710
Issue 1, June 1988
AT&T SYSTEM 25
TERMINAL OPERATIONS
MANUAL

© 1988 AT&T
All Rights Reserved
Printed in USA
TO ORDER COPIES OF THIS DOCUMENT REFER TO DOCUMENT
NUMBER 555-530-710.
Contact:
Call:
Write:
Your AT&T sales representative, or
800-432-6600, Monday to Friday between 7:30 a.m.
and 6:00 p.m. EST. In Canada, dial 800-255-1242, or
AT&T Customer Information Center
2855 North Franklin Road
P.O. Box 19901
Indianapolis, Indiana 46219
Every effort was made to ensure that the information in this document was complete
and accurate at the time of printing. However, this information is subject to change.
This document will be reissued periodically to incorporate changes.
Terminal Operations Manual for R2V1
Prepared by System 25
Document Development Group and
the Technical Publications Group

Contents
1
2
Introduction
Introduction
System 25 Voice Terminal Overview
Voice Terminal Features
Account Code Entry
Automatic Intercom
Bridged Access
Call Accountability
Callback Request (Callback Queuing)
Call Waiting
Conferncing
Coverage – Group
Coverage – Individual
Direct Group Calling
Directory
Direct Station Selection
Display
Exclusion
Following
Forwarding
HFAI, Using the BIS Voice Terminal
HFAI, Using the HFAI Voice Terminal
HFAI, Using Voice Terminals With an HFU
HFAI, Using Voice Terminals Without an HFU
Hold
Inspect
Last Number Dialed
Leave Word Calling
Local Display Functions
Message Waiting
Night Service
Paging
Park
Pickup
Placing Calls
Placing Data Calls from a Voice Terminal
Programming Numbers
Recall
Remote Access
Repertory Dialing
Send All Calls
1-1
1-3
2-1
2-5
2-7
2-9
2-11
2-15
2-17
2-19
2-21
2-23
2-25
2-29
2-31
2-39
2-41
2-43
2-45
2-47
2-49
2-51
2-53
2-55
2-57
2-59
2-61
2-63
2-65
2-67
2-69
2-73
2-75
2-77
2-79
2-83
2-85
2-87
2-89

Voice Terminal Features (Continued)
Signaling (Manual Signaling) 2-91
Speaker 2-93
Speakerphone 2-95
Speed Dialing 2-97
Station Message Waiting 2-99
Testing a Voice Terminal 2-101
Transfer 2-103
Attendant Features
Answering Calls
Attendant Message Waiting
Automatic Release and Automatic Hold
Call Waiting
Camp-On
Cancel
Conferncing
Extending Calls (Announced)
Extending Calls (Unannounced)
Forced Release
Hold
Join
Night Service
Paging
Park
Placing Calls
Position Busy
Release
Return Coverage on Busy
Return Coverage on Don’ t Answer
Source and Destination
Splitting One-Way Automatic
Start
System Alarm
Testing the Consoles
3-1
3-3
3-5
3-7
3-9
3-11
3-13
3-17
3-21
3-25
3-27
3-29
3-31
3-33
3-35
3-37
3-41
3-43
3-45
3-47
3-49
3-51
3-53
3-55
3-57
4Data Terminal Features
Data Terminal Features Overview 4-1
Making a Data Call with a Data Terminal 4-3
Making a Data Call with a Voice Terminal 4-5
Viewing and Modifying Data Port Options 4-7
Third-Party Call Setup Using a Data Terminal 4-11
Making a Data Call Across the STARLAN NETWORK 4-13
Ending a Data Call 4-15
IIndexI-1

Introduction 1
This manual is a compilation of information from several System 25 sources, and is intended
to be used by the System Administrator, AT&T Technical Consultants, and Systems
Technicians. It provides the same instructions for using System 25 voice and data terminals
as found in the Data Features User Guide and in the user guides for System 25 voice terminals.
It also includes information from the System 25 R2V1 Reference Manual.
Section Contents in This Manual
Section 1-
“Introduction”
This section provides an overview of System 25 voice terminals.
Section 2- “Voice Terminal Features”
Detailed instructions for using System 25 voice terminal features are contained in
this section.
Section 3-
“Attendant Features”
This section offers instructions for using the attendant consoles.
Section 4-
“Data Terminal Features”
This section provides instructions for using System 25 data features.
For additional information about feature operation and interactions, refer to the
R2V1 Reference Manual.
Introduction 1-1

1-2 Introduction

System 25 Voice Terminal Overview
This section is an overview of System 25 voice terminal operation. It describes the functions
of voice terminal tones, lights, and feature buttons.
Voice Terminals Supported
System 25 supports a maximum of 142 multiline voice terminals in addition to two multilines
assigned as attendant consoles. Of the 142 voice terminals, up to 96 may be 22- or 34-button
types.
Single-Line Terminals System 25 supports both rotary and touch-tone single-line voice
terminals.
Multiline Terminals System 25 supports many models of multiline voice terminals,
including the MERLIN® CS family of multiline voice terminals and
the HORIZON® CS Multibutton Electronic Telephone (MET) voice
terminals.
Attendant Consoles The System 25 supports up to two Direct Trunk Attendant
Consoles (DTACs) or up to two Switched Loop Attendant Consoles
(SLACs). The Direct Extension Selector Console is specifically
designed for use with System 25 attendant consoles.
For further information on specific models of voice terminals supported by System 25, see the
R2V1 Reference Manual.
DDCS and PDCS
When System 25 was installed, Data Dial Codes (DDCs) were assigned to data terminals and
Personal Dial Codes (PDCs) were assigned to voice terminals. In most cases, a PDC is
equivalent to an extension number. Visitors and those who do not have exclusive use of a
voice terminal may have been assigned Floating Personal Dial Codes (FPDCs).
Calling Restrictions
Calling restrictions, such as toll restriction and dial-access restriction, are established on a
per-terminal (not PDC) basis by the System Administrator. Attempts to place calls that
conflict with specified restrictions receive fast busy (reorder) tone at a voice terminal or a
denial message at a data terminal. For further information, see the “Calling Restrictions”
feature description in the R2V1 Reference Manual.
® MERLIN is a registered trademark of AT&T.
® HORIZON is a registered trademark of AT&T.
System 25 Voice Terminal Overview 1-3

Features
System 25 has two types of features, fixed and assignable,
voice terminal. Fixed features are available on every voice
assigned by the System Administrator.
Feature Access Codes
Some System 25 features require the user to dial a code to
that transform a telephone into a
terminal. Assignable features are
access the feature. These codes
are specified in the operating instructions reference that follows. For convenient reference,
they are summarized below.
FEATURE ACCESS CODES
FEATURE DESCRIPTION
I
CODE
Account Code † to enter an Account Code * 0 Code
Call Accountability to make PDC accountable for this call # # PDC
Callback Request to request callback for a busy station/trunk RECALL ‡ or # 60
to cancel callback request DROP ‡ or # 61
Call Waiting to answer a waiting call *9
Direct Group Calling to leave your DGC group *4
to return to your DGC group *6
to sign in PDC ** PDC PDC
Following to sign out PDC ** PDC 0
to sign out all PDCs **
0
to send calls to PDC # 70 PDC
Forwarding to send calls to an outside number # 70 number
to cancel forwarding from a PDC ** PDC PDC
to leave a message when calling PDC LEAVE WORD ‡
Leave Word Calling to leave a message when calling PDC #92‡
to leave a message at PDC while not active
LEAVE WORD ‡ PDC
to leave a message at PDC while not active # 92 PDC
to turn on message light at PDC # 90 PDC
Message Waiting to turn off message light at PDC # 91 PDC
or MESSAGE ‡ (for yourself)
Park to park this call *5
to pick up call parked by PDC * 8 PDC
Pickup to pick up a call ringing in a pickup group * 70
to pick up a call ringing at PDC * 7 PDC
Programming to program a button or code #4
Speed Dialing
to dial a programmed number (20-39, 100-189) # Code
† Multiline voice terminals must have an Account Code Entry button to enter codes for
incoming calls.
‡ This button or feature is available on multiline terminals only.
1-4 Introduction

Ringing Tones
System 25 signals users with four distinctive rings. The rings and their descriptions are listed
below.
INSIDE CALL
The call is from a person inside the company.
(one long ring)
OUTSIDE CALL
The call is either from the Attendant or from someone outside the company.
(two short rings)
ABBREVIATED ALERT
This indicates a second call on another line, a busy-to-idle reminder, a signal, or that the
user’s voice terminal is in program mode.
(one short burt of ringing)
PRIORITY RING
The call is either a callback because the station or outside line requested is now available, or
the call is being set up remotely for this phone via Third-Party Call Setup (a data feature).
(two short rings and one long ring)
Handset Tones
System 25 signals users with tones that are heard through the handset. The tones and their
descriptions are listed below.
DIAL TONE
The user can dial. (a continuous steady tone)
CONFIRMATION TONE
An action is accepted. Proceed to the next step.
RINGBACK TONE
The dialed number is ringing.
(three short tones)
(repeating on/off tone)
SPECIAL RINGBACK TONE
The dialed number is busy but has Call Waiting.
(one long and one short, dull tone)
BUSY TONE
The dialed number is busy. (repeating on/off tone)
FAST BUSY TONE
The dialed number is busy, misdialed, or restricted.
(repeating on/off tone)
CALL WAITING TONE (one or two tones heard during a call)
(one short tone: the waiting call is an inside call)
(tWO short tones: the waiting call is an outside call)
There is another call waiting.
QUEUING TONE
A callback request for a busy station or outside line has been confirmed.
(five short tones)
DEQUEUING TONE
The station or outside line that was requested is now available, and the call can be
completed.
(three short tones)
System 25 Voice Terminal Overview 1-5

Single-Line Voice Terminals
The Switchhook (Recall)
The switchhook is used in single-line voice terminal procedures. The switchhook is the
button(s) pressed down by the handset when not in use. When the user is instructed to
press the switchhook, the switchhook must be pressed down firmly as far as it will go for
approximately 1/2 second and then released. If the switchhook is pressed and released too
quickly, the signal will not work. If the switchhook is held down too long, the call will be
disconnected.
NOTE: If a single-line voice terminal has a [RECALL] button, the user can press it
instead of the switchhook. It does not matter how long this button is held down,
as timing is automatically controlled by the terminal.
To hang up and place another call right away, the switchhook should be held down for more
than two seconds. [RECALL] should not be used to hang up and place another call.
Multiline Voice Terminals and Attendant Consoles
The following information describes special features of multiline voice terminals and
attendant consoles. Attendant consoles have some additional features, exclusive to them,
described later in this section.
Buttons
Buttons, like features, are either fixed or assignable. Fixed buttons, such as [TRANSFER] have
specific permanent functions. Assignable buttons can have features assigned to them, usually
by the System Administrator. Each type of button is represented in a special way in this
manual, as shown below.
TYPE SHOWN AS:
dial pad buttons
[7]
dark background buttons with [TRANSFER]
permanent labels (fixed)
white background buttons with [REP DIAL]
changeable labels (assignable)
NOTE: A fourth type of button can be found on the display unit, and is represented
in the following manner: [ Set ] .
1-6 Introduction

System Access Buttons
Each multiline voice terminal (except those used as Switched Loop Attendant Consoles) has
System Access (SA) buttons that are used to place and receive calls. These
buttons, labeled with a PDC, give the user access to outside lines and system features. Unless
otherwise noted, System Access button(s) must be used for procedures described in this manual.
Any programmable button on a multiline set can be administered as an SA button. Only
buttons with both a red I-use LED and a green status LED should be used for the SA
function. If not, call appearance conditions cannot be easily monitored.
The System 25 R2V1 Implementation Manual and the System 25 R2V1 Administration Manual
provide additional information about button labeling and options.
Lights
A steady red light identifies the line in use or the line that will be in use
when the handset is lifted.
A steady green light indicates that a line or feature is in use.
A slow flashing green light indicates an incoming call.
A fast winking green light indicates a call on hold. (A green light that winks
intermittently indicates a call held temporarily while being transferred or
conference.)
Display
A 16-character Liquid Crystal Display (LCD) unit on the Switched Loop Attendant Console,
and available on some multiline voice terminals, provides visual data about incoming and
outgoing calls. In addition, the display provides support for most other system features and
offers a number of local (built-in) functions, such as a clock and timer.
To adjust the visibility of the display under various lighting conditions, use the thumbwheel
Contrast control adjacent to the screen.
For more information about using the display, see the entries titled “Directory,” “Display,”
“Inspect,” and “Local Display Functions, ” in the “Voice Terminal Features” section.
System 25 Voice Terminal Overview 1-7

Line Selection
If a multiline voice terminal automatically selects a line when a user lifts the handset to place
a call, it has the option called “prime line preference. ” If a terminal automatically selects the
ringing line when the handset is lifted to answer a call, it has the option called “ringing line
preference.”
The procedures in this manual assume the user’s voice terminal has both ringing line
preference and prime line preference (on a System Access button). If a terminal does not
have these options, the user must press the appropriate line button at the beginning of most
procedures.
Finally, a user may select any line before or after picking up the handset by pressing the
button associated with the desired line.
NOTE: In most instances, if another line is selected without putting an existing
conversation on hold, the first call will be dropped.
Attendant Consoles
Two types of attendant consoles are available with System 25:
Direct Trunk Attendant Consoles (DTACs)
Switched Loop Attendant Consoles (SLACs)
A SLAC or DTAC can be used with or without a Direct Extension Selector Console. The
setup used will depend on the size and needs of the company.
Features
An attendant can use most of the features available to other multiline voice terminal users.
In addition, the attendant has access to special call-handling features which are described in
the “Attendant Features” section.
Direct Extension Selector Consoles
The Selector Console, which allows the attendant to call an inside number by pressing only
one or two buttons instead of dialing all the digits. These buttons are identified and
described below.
GROUP SELECTION BUTTONS (the first seven buttons located on the bottom row)
Used for selecting the “hundreds group” of each extension number. The last button on
the right is used for testing the console.
NOTE: It is a good idea to label the seven Group Select buttons. The plastic caps
can be pulled off temporarily to insert labels.
DIRECT EXTENSION SELECTION (DXS) BUTTONS (located directly above the Group
Select buttons)
Used for selecting specific extension numbers from the hundreds group. (The numbering
for this group of buttons is fixed from 00 to 99.)
1-8 Introduction

Lights
On the Selector Console, a
terminal is off-hook or that
On the Selector Console, a
from that voice terminal or
steady red light indicates either that a voice
a call is parked on this extension.
flashing red light indicates a call to the attendant
an unanswered call returning to the console.
Switched Loop Attendant Consoles
Loop Buttons
Loops are the voice communications paths between the console and the system switch. The
Switched Loop Attendant Console gets its name from the system’s ability to hold incoming
attendant-bound calls in a queue and switch them to the console by way of these voice loops.
Calls are directed to the console in a predetermined, prioritized sequence. The console
receives calls one at a time; while the attendant is busy with a call, any other calls will wait in
the queue until the attendant is ready to handle another. If there are two attendants, they
share the same queue.
All incoming calls are answered at the five [LOOP] buttons located on the upper left side
of the console. The loops are also used for calls placed from the console, although other
buttons (such as those on the Selector Console) maybe used to begin the calls.
Automatic Loop Selection
When an incoming call is ringing, lifting the handset (going off-hook) automatically connects
the attendant to the caller. If the attendant wants to place a call from an idle console, lifting
the handset causes one of the [LOOP] buttons to become active (produce dial tone) for the
call. The System Administration determines which [LOOP] button becomes active when the
handset is lifted on an idle attendant console, since this is an administrable feature.
In a few situations, the attendant may need to press a [LOOP] button to answer or place a call.
The console procedures will provide specific instructions when this is necessary.
Queue Status
The number of calls waiting in the SLAC queue is shown on the right side of the Screen 1
display. If between 1 and 9 calls are waiting for service, the actual number appears. A
queue of ten or more calls is indicated by “ !”.
System 25 Voice Terminal Overview 1-9

Account Code Entry
2
For bookkeeping purposes, account codes may reassociated with any incoming or outgoing
trunk call. This optional feature provides an easy method of allocating the costs of specific
calls (and associated staff time) to the correct project, department, or client. If an account
code is entered, it is reported in the ACCOUNT field of the SMDR call record and can be
used later for accounting or billing purposes.
In addition, account codes may be required (Forced Account Code Entry) to be entered by
some users before being able to place certain outgoing calls. Forced Account Code Entry
may be required for all outgoing calls or for only “dial 0 or 1” toll calls. Account Code Entry
cannot be forced for the following types of calls:
Personal Line
Direct Facility Access
Remote Access
Automatic Route Selection (ARS) calls to 911 or designated emergency numbers
System 25 can be administered to accept account codes of one to fifteen digits. After the
correct number of account code digits has been entered (or # is entered to signal end-of-
dialing), confirmation tone is followed by dial tone. When an outgoing call requires an
account code that has not been entered, reorder tone is heard.
Only one account code will be recorded per call, and any subsequent attempts will be
ignored. For example, in conference or transfer situations, where more than one person
may try to enter their own account code, the system will not record subsequent attempts
after one account code has already been entered.
The system does not check the validity of an entered account code; it only checks for the
proper number of digits or the code terminator, “ #”.
The Call Accountability feature may be used before or after entering an account code. For
more information, see the “Call Accountability” entry on page 2-9.
Account Code Entry 2-1

Multiline
Entering Account Codes for Outgoing Calls
2
Lift the handset and listen for dial tone.
Dial.
Dial the account code or speed dialing code, or press the [REP DIAL] button
associated with the account code.
1
3
NOTE: If you make a mistake while entering the account code,
again and then the account code.
dial
4Listen for dial tone.
NOTE: If you do not hear dial tone, press
dial tone. and listen for
5Dial the outside line access code and listen for dial tone.
Dial the telephone number.
6
Entering Account Codes for Incoming Calls
You will be disconnected from your call when you press [ACCT ENTRY]. Therefore, do not
press it until you have finished your conversation.
1
2
3
Before you hang up, press [ACCT ENTRY].
Dial the account code or speed dialing code, or press the [REP DIAL] button
associated with the account code.
NOTE: If you make a mistake while entering the account code,
press [ACCT ENTRY] again and then redial the account code.
Listen for confirmation tone and then hang up.
2-2 Voice Terminal Features

Single-Line
Entering Account Codes for Outgoing Calls
3
1
2
4
5
6
Lift the handset and listen for dial tone.
Dial.
Dial the account code or speed dialing code that is associated
with the account code.
dial
NOTE: If you make a mistake while entering the account code,
again and then the account code.
Listen for dial tone.
NOTE: If you do not hear dial tone, press
for dial tone. and listen
Dial the outside line access code and listen for dial tone.
Dial the telephone number.
Entering Account Codes for Incoming Calls
Your call will be disconnected when you follow this procedure. Therefore, do not attempt it
until you have finished your conversation.
Before you hang up, press the switchhook.
Listen for confirmation tone and dial tone.
1
2
3
4
Dial
Dial the account code or
with the account code. speed dialing code that is associated
dial
NOTE: If you make a mistake while entering the account code,
again and then the account code.
Listen for confirmation tone and then hang up.5
Account Code Entry 2-3

2-4 Voice Terminal Features

Automatic Intercom
This feature applies to multiline voice terminals only.
The Automatic Intercom feature allows a multiline voice terminal user to place calls to and
answer calls from another station by use of a dedicated button appearance. The Automatic
Intercom feature is usually set up between two system users who frequently call each other.
To use this feature, the AUTO ICOM button is pressed instead of dialing the other person’s
PDC.
AUTO ICOM buttons are assigned to voice terminals in pairs. If a voice terminal should
have direct access to multiple stations, multiple AUTO ICOM buttons need to be assigned.
The AUTO ICOM status LED remains lit whenever the other party is off-hook. If the green
light is on next to AUTO ICOM, a busy-to-idle reminder can be activated; the user’s voice
terminal will ring when the other person hangs up. To activate the busy-to-idle reminder,
the user can press AUTO ICOM while remaining on-hook. A short burst of tone is provided
when the other party hangs up. The user can then go off-hook, and the call will be placed;
the AUTO ICOM button does not have
Placing a Call Using Automatic
1
2
Lift the handset and
Press [AUTO ICOM] .
Activating
to be pressed again.
Intercom
listen for dial tone.
a Busy-to-Idle Reminder
Do not lift the handset.
1
2Press [AUTO ICOM] .
NOTE: The voice terminal will ring once when the other person
hangs up, and your call will be placed automatically when you lift
the handset.
Automatic Intercom 2-5

2-6 Voice Terminal Features

Bridged Access
This feature applies to multiline voice terminals only.
The Bridging feature allows a multiline voice terminal user to handle calls on a BRIDGED
ACCESS (BA) button associated with a SYSTEM ACCESS (SA) button on another multiline
station (the principal station). The BA button can be used to cover or join calls in progress on
the associated SA button. The bridging feature meets the needs of executive/secretary-type
arrangements where both parties place and receive calls on the same extension numbers.
It is recommended that each SA button on a principal station have a corresponding BA
button on the bridging station. With this arrangement, the bridging user can track all calls
coming to the principal’s SA buttons. Up to 16 people can have a BA button for the same
SA button on the principal station.
NOTE: The bridging feature applies only to calls appearing on the SA buttons of a
principal station. Calls on AUTO ICOM, PERS LINE, DSS, and FLEX DSS buttons
are not accessible from a BA button.
Although a BA button can be assigned to any programmable feature button on a bridging
station, it does not take the place of an SA button. The SA buttons on the bridging station
can be bridged by other stations.
A bridging station user is able to originate calls using BA buttons and can answer calls for the
principal. The bridging user can also enter existing calls on bridged appearances by simply
going off-hook on the BA button, unless Exclusion has been activated or the maximum of five
active parties on a call has been reached.
Many features can be used with bridged calls; operation is no different from calls on other
buttons. For example, Hold, Conference, and Transfer can be used from a BA button just
as they would be used from an SA button. If a station goes off-hook on a BA button and
dials a number, the call is completed according to the bridging station’s restrictions and
characteristics, not the principal station’s.
The System Administrator can set the BA button to ring in any of the following ways:
Ring immediately whenever a call rings at the principal’s SA button
Start ringing after a predetermined number of rings on the principal’s SA button
(delayed ring)
Not ring at all
Bridged Access 2-7