AT&T Merlin Legend BIS10 User manual

AT&T System 25
Multiline Telephone
User Guide

©1989 AT&T
All Rights Reserved
Printed in USA
TO ORDER COPIES OF THIS DOCUMENT REFER TO DOCUMENT
NUMBER 555-540-703.
Contact: Your AT&T sales representative, or
Call: 800-432-6600, Monday to Friday between 7:30 am
and 6:00 pm EST.
In Canada call: 800-255-1242, or
Write: 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.
Multiline Telephone User Guide
Prepared by the
Technical Publications Group

Contents
1
Introduction
9Multiline Features
Account Code Entry
Automatic Intercom
Bridged Access
Call Accountability
Call Waiting
Callback
Conference Calls
Coverage
Data Calls
Placed from Your Telephone
Direct Group Calling (DGC)
Direct Station Selection (DSS)
Directory
Display
Display Functions
Exclusion
Following
Forwarding
Hands-Free Answering
Hold
Inspect
Last Number Dialed
Leave Word Calling
Message Waiting
Night Service
Paging
Park
Personal Message Waiting
Pickup
Placing Calls
Programming Numbers
9
11
12
13
14
15
16
17
18
19
20
21
24
32
33
34
35
36
38
40
42
43
44
45
46
47
48
49
50
52

Recall
55
Repertory Dialing (REP DIAL)
Send All Calls
Signaling
Speaker
Speakerphone
Speed Dialing
Testing Your Telephone
Transfer
56
57
58
59
60
62
63
64
65
Glossary

Introduction
This guide describes the features available to you from AT&T
System 25 through a multiline telephone and provides
instructions for using the features. For your convenience, the
features are arranged in alphabetical order.
Your telephone is ready to use as soon as it is connected to the
System 25. Therefore, as you learn to use the features, you can
make and receive calls with your telephone just as you would
with any ordinary phone.
Features
Your AT&T System 25 has two types of features: fixed and
assignable. A fixed feature is one that is provided on all
multiline telephones. (In this guide, fixed features are indicated
at the beginning of the feature description by a box with a
check. )
An assignable feature is not provided automatically on all
phones. It must be “assigned” by your System Administrator.
(In this guide, assigned features are indicated at the beginning of
a feature description by an empty box. )
fixed feature
assignable feature
Check with your System Administrator as to which features have
been assigned to you. (As a reminder, you can place a check in
the box of each assignable feature as you receive it.)

Multiline Telephone Models
The telephones shown below and on the following page are
some of the phones that are used with System 25. You can use
this guide with any of these telephones.
5-Button
10-Button 10-Button BIS

22-Button BIS with Display
22-Button BIS
34-Button 34-Button BIS with Display

Buttons
Most multiline telephones have
Each is represented in a special
TYPE
dial pad buttons
three standard types of buttons.
way in this guide:
SHOWN AS:
button next to permanent
label with dark background
button next to changeable
label with light background
NOTE: A fourth type of button can be found on the display unit,
and is represented in this way:
Each multiline telephone has System Access buttons that are
used to place and receive calls and to access special system
features. On most phones, these buttons are located on the
upper left portion of the faceplate, and are labeled with your
extension number.
Line Selection
Your telephone should automatically select a line when you lift
the handset to place a call, and automatically select a ringing
line when you lift the handset to answer a call. These options
are set by the System Administrator, and the procedures in this
guide assume that you have both of them. (If you do not have
these options, you must press the appropriate line button at the
beginning of most precedures.)

Handset Tones
System 25 signals you with tones that are heard through the
handset. The tones and their descriptions are listed below.
DIAL TONE
(a continuous steady tone)
You can dial.
CONFIRMATION TONE
(three short tones)
Your action has been accepted.
RINGBACK TONE (repeating on/off tone)
The number you dialed is ringing.
SPECIAL RINGBACK TONE
(one long tone and
one short, dull tone)
The person you dialed
Waiting.
is busy, and has been notified of Call
BUSY TONE
(repeating on/off tone)
The number you dialed is busy.
FAST BUSY TONE (fast repeating on/off tone)
The number you dialed was busy, misdialed, or restricted.
CALL WAITING TONE (short tone(s) heard during a call)
(the waiting call is an inside call)
(the waiting call is an outside call)
You have a call waiting to be answered.
QUEUEING TONE (five short tones)
Your request for a callback has been confirmed.
DEQUEUEING TONE
(three short tones)
The extension or outside line that you requested for callback is
now available.
5

Ringing Tones
System 25 signals you with four distinctive rings. The rings and
their descriptions are listed below.
Your call is from a person inside your company.
Your call is from the attendant or someone outside your
company.
This can indicate a call on another line; a busy-to-idle reminder;
a manual signal; or that your telephone is in program mode.
You are being alerted that your request for Callback can now be
completed; or a call is being set up remotely for your phone via
a data feature known as Third-Party Call Setup.
Lights
A steady red light indicates the line you should
use when you lift the handset.
A steady green light indicates the line or feature
in use.
A slow blinking green light indicates an
incoming call.
A fast blinking green light indicates a call on
hold or a queued call. (An intermittent blinking
green light indicates a call held temporarily while
being transferred or conference.)
6