Ericsson T28s User manual

Visit us on our website
http://mobile.ericsson.com
Ericsson Mobile Communications AB, SE-221 83 Lund, Sweden
EN/SVV 000 000 R1A
Mobile Phone
T28s
User’s Guide

NotforCommercialUse
EricssonMobileCommunicationsAB
Contents
at a Glance
Getting Started 3
Preparing Your Phone for Use 4
Turning Your Phone On and Off 9
Display Information and Key Functions 11
Making and Receiving Calls 13
During a Call 16
Functions and Settings 19
T28 Features 20
Using the Menus 21
Your Personal Phone Book 27
Using the Call List 35
Your Voice Mail Service 37
Personalizing Your Phone 39
Sending and Receiving Text Messages (SMS) 46
Diverting Incoming Calls 56
Security for Your Phone and Subscription 58
Handling More than One Call Simultaneously 65
Setting Network Preferences 70
Knowing the Call Time/Call Cost 73
Using Two Voice Lines 75
Voice Control 76
Calling Card Calls 79
Sending and Receiving Fax and Data Calls 82
Extras 84
The Profile Concept 88
Accessories 91
Online Services 99
Additional Information 103
Quick Keys 104
Troubleshooting 106
Ericsson Mobile Internet 108
Technical Data 109
Glossary 110
Guidelines for Safe and Efficient Use 115
Warranty 121
Declaration of Conformity 123
Index 125
Ericsson T28s
Second edition (September 1999)
This manual is published by Ericsson
Mobile Communications AB, without any
warranty. Improvements and changes to
this manual necessitated by typographical
errors, inaccuracies of current information,
or improvements to programs and/or equip-
ment, may be made by Ericsson Mobile
Communications AB at any time and with-
out notice. Such changes will, however, be
incorporated into new editions of this
manual.
All rights reserved.
©Ericsson Mobile Communications AB,
1999
Publication number: EN/LZT 126 1456 R1B
Printed in Sweden
INNOVATRON PATENTS

NotforCommercialUse
EricssonMobileCommunicationsAB
Please note!
Some of the services in this manual are not supported by all
networks. This also applies to the GSM International Emergency
Number 112.
Please contact your network operator or service provider if you are
in doubt whether you can use a particular service or not.
Note! You should read the Guidelines for Safe and Efficient Use
and the Warranty chapters before using your mobile phone.
The symbol on our products signifies that they have been
certified according to the EMC directive 89/336/EEC, the
Telecommunications directive 91/263/EEC, and the Low Voltage
directive
73/23/EEC when applicable. The products fulfil the requirements
according to the following standards:
Cellular Phones and Accessories in Combination:
ETS 300 342-1 EMC for European digital cellular
telecommunications.
Accessories Without Direct Connection to a Cellular Phone:
EN 50081 Electromagnetic compatibility, Generic Emission
Standard, and EN 50082 Electromagnetic compatibility, Generic
Immunity Standard.

NotforCommercialUse
EricssonMobileCommunicationsAB
Preparing Your Phone for Use 4
Turning Your Phone On and Off 9
Display Information and Key Functions 11
Making and Receiving Calls 13
During a Call 16
Getting Started

NotforCommercialUse
EricssonMobileCommunicationsAB
4 Preparing Your Phone for Use
Preparing Your Phone
for Use
Front
Back
Overview
Antenna
Indicator light
Earpiece
Power On/Off
Flip release button
Microphone
Volume key
Display
Keypad
Flip
Connector for external antenna
H
ole for belt clip
Battery release catch
Flip release button
Handsfree
connector
Charging
connector
Battery

NotforCommercialUse
EricssonMobileCommunicationsAB
Preparing Your Phone for Use 5
You need to do the following to use your phone:
•insert the SIM card
•attach the battery to the phone
•charge the battery
When you register as a subscriber with a network operator, you get a SIM
(Subscriber Identity Module) card. The SIM card contains a computer chip
that keeps track of your phone number, the services included in your
subscription, and your Phone Book information, among other things.
SIM cards come in two sizes. One is the size of a credit card and the other is
smaller. Your phone uses the smaller card. Many credit card-sized SIM cards
have a perforated smaller card that you can take out easily. Before you can use
your phone, you must insert the SIM card as shown below.
Inserting and Removing the SIM Card
1. Remove the battery if attached. Slide the SIM card into the slot, under the
silvery holders, with the golden connectors facing down and the cut corner
to the right.
Assembly
The SIM Card

NotforCommercialUse
EricssonMobileCommunicationsAB
6 Preparing Your Phone for Use
2. Raise the edge of the SIM card and slide it out.
The PIN
Most SIM cards are supplied with a security code, also known as PIN
(Personal Identity Number), which you need to access the network. Every
time you turn on your phone, you are asked to enter your PIN. You will find
your PIN in the information from your operator.
Some operators may have services that require a second PIN, your PIN2.
You should be careful with your PIN, since it is your protection against
unauthorized use of your subscription.
If your PIN is entered incorrectly three times in a row, the SIM card is
blocked. If this happens, you can unlock it by using your PUK (Personal
Unblocking Key code), which you also get from your operator.
Your T28 comes with a lithium battery. The battery is not charged when you
buy your phone, but there may be enough power to switch the phone on. We
recommend that you charge the battery up to three hours before you use the
phone for the first time.
Attaching the Battery to Your Phone
When to Charge the Battery
The battery that comes with your phone can be charged whenever you wish
without affecting its performance. You can also charge the battery when the
phone is off.
To remind you that you will soon need to charge the battery or replace it with
a charged one:
•an alarm signal (a short beep) sounds and the message
Attention! Battery low
appears in the display
The Battery
•
Place the battery on the back of the phone and push until you hear a click.

NotforCommercialUse
EricssonMobileCommunicationsAB
Preparing Your Phone for Use 7
•the indicator light on top of the phone starts flashing red
If you have an Ericsson-approved battery, you can check the remaining talk
and standby times in the Status menu by sliding the volume key upwards or
downwards in standby mode. You can move downwards in the menu by
pressing
 . The remaining standby and talk times depend on the type of
battery you use and your position in the network. Please note that these times
are approximate and you may have 20% less time than is shown in the display.
Note! The phone turns itself off when the battery can no longer power it
satisfactorily.
Charging the Battery
Note! The mains plug may look different depending on the mains socket in
your country. Do not connect it to any other item than you Ericsson Travel
Charger CTR-10. It must not be separated from the charger when plugged
into the mains socket.
To indicate charging:
•the indicator on the top of the phone shows a steady red light (or green, if
the phone is switched on)
•the message
Charging only is shown in the display
•the battery meter in the display pulses continuously
Note! If you charge a new battery that is empty, or a battery that has not been
used for a long time, it may take a while until you get an indication of
charging in the display. Only then can you switch on and use your phone.
3. Connect the charger to the phone
as shown. The flash symbol on the
plug must face upwards.
1. Make sure that the battery is
attached to the phone.
2. Connect the charger to the mains.

NotforCommercialUse
EricssonMobileCommunicationsAB
8 Preparing Your Phone for Use
An Ericsson-approved battery is indicated by Ericsson Optimized charging each
time you start charging the battery when the phone is switched on. For the best
charging, talk and standby times in the long run, we recommend that you use
only Ericsson-approved batteries with your phone.
Batteries that are not Ericsson-approved are charged slowly for safety reasons.
These are indicated by
Charging alien battery each time you start charging the
battery when the phone is switched on.
Tip! You can use the phone while the battery is being charged. However, this
lengthens the charging time.
When the battery is fully charged, the battery meter in the display is full and
the indicator on the top of the phone shows a steady green light.
Disconnecting the Charger
Removing the Battery
Disconnect the charger from the phone by
moving the plug upwards.
2. Lift the battery away from the
phone.
1
.Slide the release catch upwards.

NotforCommercialUse
EricssonMobileCommunicationsAB
Turning Your Phone On and Off 9
Turning Your Phone On
and Off
1. Open the flip by pressing the flip release button on the right side of the
phone.
2. Press and hold the NO key until you hear a tone.
If “PIN:” Appears in the Display
Some SIM cards are protected with a PIN code. If
PIN: appears in the display
after you have turned on the phone:
1. Enter your PIN. If you make a mistake while entering your PIN, erase the
wrong number by pressing the Ckey.
2. Press YES.
Note! If your PIN is entered incorrectly three times in a row, the SIM card is
blocked. You can unblock it by using your PUK. See “The SIM Card Lock” on
page 58.
If ‘Phone locked’ appears in the display, enter your phone lock code. See
“The Phone Lock” on page 59.
Network Search
After you have turned on the phone (and entered your PIN), the phone
searches for a network.
When a network is found, the phone beeps three times. The indicator light on
top of the phone flashes green once every second and your network operator’s
name (in most cases abbreviated) appears in the display.
This is called standby mode. You can now make and receive calls.
Note! See “Error Messages”on page 106, if you do not reach standby.
Turning your Phone on