AT&T System 25 User Manual

555-540-711
Issue 1
1989

AT&T System 25
Cordless Telephone

User Guide

©1989 AT&T

All Rights Reserved
Printed in USA

TO ORDER COPIES OF THIS DOCUMENT REFER TO DOCUMENT
NUMBER 555-540-711.

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 dial 800-255-1242, or

Write: AT&T Customer Information Center

285 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.

Cordless Telephone User Guide

Prepared by the

Technical Publications Group

Contents

1

7

Introduction

Cordless Telephone Controls
Lights
Ringing Tones
Handset Tones

System 25 Features

Programming System 25 Features
Considerations
Procedures for Programming Features

2
4
4
5

10
10
11

Introduction

This guide lists all of the features available to you from AT&T

System 25 through the cordless telephone and provides basic
instructions on how to use your cordless telephone to program
those features. For a full description of these features, and step-

by-step instructions on how to implement them, see the AT&T

System 25 Multiline Telephone User Guide.

Your cordless telephone is ready to use as soon as it is connected
to the System 25. You can still make and receive calls while you
are learning to use the System 25 features.

NOTE: To ensure optimal operation of your cordless phone, you

should make certain that the environmental guides specified for
this set have been met.

1

Cordless Telephone Controls

The following figures show the controls on the handset and base
unit of the cordless telephone. See the owner’s manual that
accompanied your set for more detailed information on how to
use these controls.

Base Unit Controls

1 Retractable Antenna
2 Power Cord with AC Adapter
3 Handset Hook
4 Directory Card
5 Battery Contacts

2

6 Channel Indicator
7 Mode
8 T/P Switch
9 Ringer Volume

10 Message Light