AT&T Network Adapter 25 User manual

555-520-703
Issue 1, June 1987
AT&T SYSTEM 25
MULTILINE
TERMINAL
USERGUIDE

© 1987 AT&T
All Rights Reserved
Printed in USA
TO ORDER COPIES OF THIS DOCUMENT REFER TO DOCUMENT
NUMBER 555-520-703.
Contact: Your AT&T sales representative or
Call: 800-432-6600, Monday to Friday between 7:30 am
and 6:00 EST, or
Write: AT&T Customer Information Center
2855 North Franklin Road
P.O. Box 19901
Indianapolis, Indiana 46219
Multiline Terminal User Guide
Prepared by System 25
Document Development Group and the
Technical Publications Group

Contents
Introduction
1
Features
1
Buttons
1
Line Selection
2
Multiline Voice Terminals
2
Handset Tones
Ringing Tones
Lights
DDCs and PDCs
For Additional Information
Multiline Features
Account Codes
Automatic Intercom
Call Accountability
Call Coverage
Call Following (Forwarding)
Call Pickup
Conference Call
Direct Station Selection (DSS)
Exclusion
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
Incoming Calls Group
Last Number Dialed
Manual Signaling
Message Waiting
4
4
5
5
5
7
7
8
9
10
11
12
13
15
16
17
19
21
23
24
26
27
29
30

Night Service
Paging
Park
Placing Calls
Placing Data Calls from Your
Voice Terminal
Programming Numbers
Recall
Repertory Dialing
Speaker
Speakerphone
Speed Dialing
Station Message Waiting
Testing Your Voice Terminal
Transfer
Waiting Call
32
33
34
35
37
38
42
43
44
45
47
48
49
50
51
Glossary
53
Quick Reference Card

Introduction
This guide describes how users of multiline voice terminals may
use System 25 features. The voice terminals that can be used
with this guide are shown on pages 2 and 3.
Features
Your AT&T System 25 has two types of features, fixed and
assignable, that transform your telephone into a voice terminal.
Fixed features are available on every multiline voice terminal.
Assignable features are assigned by your System Administrator.
In this guide, fixed features are identified by a check in the box
at the top of the page.
fixed feature
❑assignable feature
If you need an assignable feature, see your System
Administrator. As a reminder, you may wish to check the boxes
of the assignable features you have.
Buttons
There are three types of buttons on most multiline voice
terminals. Each is represented in a special way in this guide:
TYPESHOWN AS:
keypad buttons ❑
7
dark background buttons with
permanent labels TRANSFER
white background buttons with
changeable labels
1

Each Multiline voice terminal has at least two System Access
buttons that can be used to place and receive calls. From these
buttons you can also gain access to outside lines and system
features. On most terminals, these buttons are located in the
upper left portion of the faceplate, and are labeled with your
PDC (extension number). Unless otherwise noted, you must use a
System Access button for the procedures described in this manual.
Line Selection
If your voice terminal automatically selects a line when you lift
the handset to place a call, you have the option “prime line
preference.”
If your voice terminal automatically selects the
ringing line when you lift the handset to answer a call, you have
the option “ringing line preference. ”
Throughout this manual, it has been assumed that you have
both ringing line preference and prime line preference (on a
System Access button). If you do not have these options, the
appropriate line (button) must be manually selected at the beginning of
most procedures.
Multiline Voice Terminals
The voice terminals shown below and on the following page are
some of the terminals that are supported by System 25. You can
use this guide with any of these voice terminals.
2

3

Handset Tones
System 25 signals you with tones that are heard through the
handset. The tones and their descriptions are listed below.
DIAL TONE lllllllllllllllllllllllllllllllllllllllll
You can dial.
CONFIRMATION TONE Illllllllllll
Your action has been accepted.
(a continuous steady tone)
lllllllllllll llllllllllll
(three short tones)
Proceed to the next step.
RINGBACK TONE lllllllllllllll lllllllllllllll llllllllllllll
(repeating on/off tone)
The number you dialed is ringing.
BUSY TONE lllllllllllll
llllllllllllll llllllllllll (repeating on/off tone)
The number you dialed is busy.
FAST BUSY TONE lllllllll lllllllll lllllllll (repeating on/off tone)
The number or access code you dialed was busy, misdialed, or
restricted.
CALL WAITING TONE lllllll (one short tone–heard during a call)
You have another call waiting.
PREFERRED ROUTE TONE llllll llllll lllllll lllllll (five short tones)
Your call is waiting in line for the preferred route. You may wait
by staying off-hook or you may hang up and try again later.
Ringing Tones
System 25 signals you with four distinctive rings. The rings and
their descriptions are listed below.
INSIDE CALL llllllllllllllllllllllllll
(one long ring)
Your call is from a person inside your company.
OUTSIDE CALL llllllllllllllll lllllllllllll (two short rings)
Your call is either from the Attendant or someone outside your
company.
ABBREVIATED ALERT lllllllllllll
(one short burst of ringing)
This indicates a second call on another line, a busy-to-idle
reminder, a manual signal, or that your voice terminal is in
program mode.
PRIORITY RING llllllllllll lllllllllll lllllllllllllllllllll (two short rings followed
by one long ring)
A call is being set up remotely for this phone via Third-Party
Call Set-Up, a data feature.
4

Lights
A steady red light identifies the line you are using or the
line you will be using when you lift the handset.
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. (An
intermittent winking green light indicates a call held
temporarily while being transferred or conference.)
DDCs and PDCs
When your 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, your PDC is
your extension number. If a voice terminal is shared, each
person may have been assigned their own "floating" PDC.
For Additional Information
See your System Administrator if you have any questions or
would like additional information about your System 25 features.
5

Multiline Features
Account Codes
❑
For bookkeeping purposes, your System Administrator may
assign account codes to use with certain calls.
You will be disconnected from your call when you press
Therefore, do not press it until you have finished your
.
conversation.
1 Before you hang up, press
2 Dial the account code or speed dialing code,
or press the button associated with
the account code.
3 Listen for confirmation tone and then
hang up.
7