AT&T 3658B Quick Start Manual Download Page 1

INSTALLATION

NOTE

: Install this telephone away from electronic equipment,

such as personal computers, television sets or microwave ovens.
Avoid excessive heat, cold, dust or moisture.

1

Connect the telephone line cord. (figure a)

2

Connect the power cord to the base and an electrical outlet not
controlled by a wall switch. (figure a)  

CL

flashes in the message

window.

Use only the power cord supplied with this product.
If you need a replacement, call 1-800-222-3111.

3

Install the handset battery. Use only AT&T Battery 2401,
SKU# 91077. (figure b)

Charge the handset battery.

Place the handset in the base.

Charge the battery at least 12 hours. After the first charge,
the battery will charge in eight hours.

For detailed installation instructions, to use the belt clip, or to 
use a headset with this phone please refer to the 

INSTALLATION

section of your User’s Manual.

FEATURE SETUP

QUICK START GUIDE

5.8 GHz Cordless Answering 
System 3658B with 
Caller ID/Call Waiting

b) Align the contacts

and place the
battery pack in
the battery
compartment

a) Remove battery

compartment
cover by pressing
on indentation
and sliding
downward.

Modular

telephone

jack

Standard
electrical
outlet

Power Cord

Line Cord

figure a

figure b

c) Replace cover 

by sliding it on its
track up over bat-
tery case until it
snaps firmly into
place.

Set Time

You can choose to set the handset time manually, or you can allow it
to be set automatically with incoming Caller ID information.

1

Press

on the handset.

2

Press 

until the screen displays

3

Press

. The screen displays the current time setting.

Use 

to move the cursor, use the keypad to change a

digit. Select .

4

Press

to save the displayed time.

NOTE

: To set up the answering system clock, please refer

to ANSWERING SYSTEM section on this page or see “Set the
Clock” in ANSWERING SYSTEM OPERATION on page 45 of
your User’s Manual.

FEATURE SETUP continued on back

SAVE

AM/PM

OK

CALLS LOG

INTERCOM

HANDSET SETTINGS

MENU

OK

SET TIME

 ATT3658B_QSG  5/19/04  5:28 PM  Page 1

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