Ericsson GH198 User Manual

Digital Handheld Telephone

for GSM

Ericsson

GH198

User’s Manual

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 equipment, may be made by
Ericsson Mobile Communications AB, at any time and without notice.
Such changes will, however, be incorporated into new editions of this
manual.

All rights reserved.

© Ericsson Mobile Communications AB, 1993.

INNOVATRON PATENTS

APPROVED for connection to

telecommunication systems specified

in the instructions for use subject

to the condition set out in them.

S/1208/4/P/502763

SAFETY AND PRECAUTIONS

●

Switch off your cellular telephone when in an aircraft.
The use of cellular telephones in an aircraft may be dan­gerous to the operation of the aircraft, disrupt the cellular
network and is illegal. Failure to observe this instruction
may lead to suspension or denial of cellular telephone
services to the offender, or legal action, or both.

●

Users are advised to switch off the cellular telephone
when at a refuelling point.

●

Users are reminded of the need to observe restrictions on
the use of radio equipment in fuel depots, chemical
plants, or where blasting operations are in progress.

●

A hand-held microphone or telephone handset should not
be used by the driver while the vehicle is moving, except
in an emergency. You should only speak into a fixed,
neck slung or clipped-on microphone when it would not

distract your attention from the road. Do not stop on the
hard shoulder of a motorway to answer or make a call,
however urgent.

●

There may be a hazard associated with using your GSM
telephone close to personal medical electronic devices,
such as hearing aids and pacemakers.

●

Operation of your GSM telephone close to other elec­tronic equipment, such as televisions, radios and per­sonal computers may cause interference.

●

Use only Basic Charger 4213 and AC/DC Converter
4214, Rapid Charger 4219, or Multi Charger 4221 and

AC/DC Converter 4222 with this telephone. Other usage
will invalidate any approval given to this telephone and
may be dangerous.

CONTENTS

Introduction 1
Basic Operation 6

Making the Phone Ready for Use 6

Attaching the Battery 6
Unfolding the Antenna 6

Turning the Phone On 6
Entering a Phone Number 8
Making a Call 8

Last Number Recall 9
International Calls 9
Emergency calls 10

Receiving a Call 10

Unanswered Calls 10

Call Time Meter 10

Audible Call Timer 11
Volume Control 11
Microphone Mute 11
Scratch Pad 11
Key Lock 11
Turning the Phone Off 11

Details on the Display and Keys 12

Display 12

Alphanumeric Field 12

Numeric Field 12

Status Indicators 12

Keypad 14
Illumination 17
Audible Signals 17

Ringing Signal 17

Alarm Signal 18
Error Signal 18
Confirmation Click 18

Visual Signals 18

Storing Numbers 19

Storing a Number (and Name) 19

Memory Protection 20
Memory Full 20

Erasing a Stored Number (and Name) 21

Recalling Numbers 22

Numeric and Alphabetic Mode 22
Recalling a Number Using Numeric

Mode 22

Scrolling through the Memory 22
Alternative Method for Recalling

a Number 22
Speed Calling 23

Recalling a Number Using Alphabetic Mode 23

Scrolling through the Memory 23

Reviewing the First Digits if a Recalled Number Contains More
than 10 Digits 23

Appending Digits to a Recalled Number 24
Replacing the Last Digits of a Recalled Number 24

Dialling Memory and Scratch Pad 25

Dialling Memory 25

Recalling the Last Six Numbers Called 25

Scratch Pad 25

Storing a Number 25
Recalling a Number 26

DTMF Signalling 27

Sending DTMF Signals 27

Sending a Code 27
Pre-programmed DTMF Signalling 27

Special Functions 29

Accessing a Special Function 30

Using Method 1 30
Using Method 2 30
Using a Combination of the Two Methods 31
Leaving a Special Function 31

Changing a Setting 31
Storing a New Setting 31

0. Ringing Signal Volume 32

1. Key Clicks, Silent Keypad or DTMF Signals 32

2. Call Forwarding 32

3. Call Barring 34

4. Automatic Re-try 36

5. Back Light 37

6. Current Network 37

7. Available Networks 37

8. Network Selection Mode 38

9. Automatic Network Selection 38

10. List of ‘‘Preferred’’ Networks 39

11. Last Call Time 40

12. Total Call Time 40

13. Minute Minder 40

14. PIN 41

15. Any Key 42

16. Language Selection 42

17. Area Code 42

18. Battery Discharge 43

19. Battery Voltage 43

20. Phone Lock 44

Batteries and Recharging 46

Batteries 46

Battery Meter 46
Low Battery Alarm 46
Care and Maintenance 47
Inserting and Removing a Standard or Slimline Battery 48
Inserting and Removing a High-Capacity Battery 49

Recharging 50

Basic Charger 51

Accessories 53

Hands-Free Vehicle Kit 53
Portable Hands Free 54
Vehicle Power Adaptor and Rapid Charger 55
Multi Charger 57

Problems You Can Solve 60

Phone Does Not Come On 60
INSERT SIM Is Displayed 60
The SERV Indicator Does Not Come On

or the Message NO NETW (No Network) Is Displayed 60
The SERV Indicator Flashes 60
Received Signal Is Weak 60
Flashing Red Indicator Light -- Alarm Signal Sounds 60
Steady Red Indicator Light 61
Changing Your Password 61
Messages 61
Inserting the SIM 62

Introduction

This digital handheld cellular telephone is designed for use
on a GSM (Global System for Mobile communications)
network.

The GSM standard is the result of many years of
collaboration between the telecommunications authorities of
different European countries. This unique cooperation will
result in GSM networks being installed all over Europe as
well as in countries all over the world. This will allow you to
use your phone wherever you travel, for business or
pleasure.

The phone is small and light and simple to use. After you
have turned it on, you can use it in much the same way as
any other telephone.

The phone has an antenna which can be unfolded so that it
points directly upwards and, when not in use, can be folded
down completely.

Before holding the phone to your ear, ensure that
the antenna is unfolded completely.

About this manual

This manual is provided to help you use your phone. Keep
it handy to
answer questions you may have.

The next chapter, Basic Operation, describes the most
essential operations: Turning the phone ON/OFF,
making calls and answering calls.

Having learnt to perform these operations, you should read
the third chapter, Details on the Display and Keys , to learn
more about the display, with its status indicators, and the
functions of the various keys. The phone’s aud­ible and visual signals are dealt with, too.

Then you can go on to read about the more advanced
functions, such as storing phone numbers and

accompanying names in memory, recalling phone numbers
from memory, DTMF signalling, and using the Special
Functions of the phone.

You should pay particular attention to the chapter Batteries

and Recharg­ing because correct care will prolong the life of a battery

and also the length of time between recharging.
The Problems You Can Solve chapter at the end of the

manual could save the cost of unnecessary service. It lists
some simple things to be checked before calling for service
personnel.

Overview

Key functions

SIM

SIM -- Subscriber Identity Module

Electronic lock

Special Function No. 20, Phone Lock allows you to enable
an electronic lock to protect against unauthorized use of the
phone in the event of a theft. Refer to the chapter Special

Functions.

Observe the following!

When you turn the phone ON for the first time, all texts in
the display will be in English.

Special Function No. 16 allows you to select a language
other than English. Refer to the chapter Special Functions.

Your SIM must be inserted. If not, you cannot use the
phone.

The SIM contains your personal data, such as your
subscriber number, your ‘‘ home’’ network and services you
have subscribed to.

It also comprises a memory where you can store frequently
used phone numbers. Refer to the chapter Storing

Numbers.

PIN -- Personal Identification Number

Your SIM is protected by a unique 4- to 8-digit PIN.
Special Function No. 14 allows you to decide whether or

not this PIN must be entered each time the phone is turned
ON.

This is called PIN Check. Refer to the chapter Special
Functions.

Some of the functions described in this manual are
optional, and you may not have access to them.

Additional information

You should also read the operating
instructions from your network operator about coverage
areas and features as call barring and call forwarding.

Basic Operation

Making the Phone Ready
for Use

Attaching the Battery

1

2

Unfolding the Antenna

3

Turning the Phone On

The phone is turned ON by pressing and holding
down the Power key until a click is heard.

After the phone has been turned ON, the illumination

of the display and keys comes on. All segments in
the display flash for a few seconds. The PWR (Power)
indicator then remains lit.

SIM not inserted

If your SIM is not already inserted, the message
‘‘INSERT SIM’’ appears in the display.

Should this happen, refer to the chapter Problems
You Can Solve at the end of this manual.

PIN check enabled

If the PIN check is enabled, to protect your SIM, the
question ‘‘PIN?’’ appears.

Enter your PIN on the numeric keys and press the #

(Hash) key.

The SIM gives you three chances to enter the PIN

Signal strength meter

correctly. If the PIN is entered incorrectly three
times, the message ‘‘SIM BLOCKD’’ (SIM is
blocked) is displayed.

Should this happen, refer to the chapter Problems You Can
Solve.

After the PIN has been entered correctly, the phone
searches for a GSM network and the
message‘‘SEARCHING’’ is displayed.

Once a GSM network has been found, three short beeps are
heard and the SERV (Service) indicator comes on in the
display. An abbreviation for the GSM network is displayed
on the left of the display. You may now make and receive
calls.

shows this in steps of 1, until 0 is shown when the battery
has no charge left. You can read more about this in the
chapter Batteries and Recharging.

Note the following points:

●

The phone will search for the ‘‘home’’ network. If this is not
available, the phone will search for a GSM network from
those in range, provided that Automatic Network
Selection is chosen.

●

If Manual Network Selection is chosen, and the ‘‘home’’
network is not available, ‘‘SEL NETW’’ (Select Network) is
displayed. Then you have to select a GSM network
yourself. You can read more about this in the description
of Special Function Nos. 7 and 9 in the chapter Special
Functions.

Network

Battery meter

A signal strength meter shows the strength of the
received signal, 0 to 5. A value of 5 indicates a strong signal

A battery meter is shown on the right of the display. It
starts at 5, after a fully charged battery has been attached
to the phone. As the battery loses charge, the battery meter

The SERV indicator flashes:

This indicates that a GSM network is in range, but the
phone will not register on that network. You can, however,
make emergency calls. Refer to the section Emergency

Calls, later in this chapter,

The message ‘‘NO NETW’’ (No Net­work) is displayed:

No network is available.The reason may be:

●

You are in an area which is not covered by a network

●

The received signal is too weak.Try moving the phone or
the car to obtain a stronger signal. Refer to the chapter
Problems You Can Solve.

Entering a Phone Number

If anything is shown in the numeric field of the
display, you must erase it before entering the
phone number.

Special Function No. 17, Area Code, permits you
to choose an area code that will be automatically
added to a phone number if you do not enter an
area code yourself. You can read more about this
in the chapter Special Functions.

To erase the numeric field, hold down the C (CLEAR) key
until the digits disappear.

A phone number to be called, or stored in memory, is
entered on the numeric keys. The digits you enter are
shown in the numeric field of the display.

Numeric field

Always use the area code!

Note that there are no local calls when you are calling from
a cellular phone; you must always include the area code
before the desired number. The only exceptions to this are
certain cellular service numbers.

If you enter a wrong digit or a wrong number:

If you enter a wrong digit, you can erase it by pressing C
(CLEAR). You can press C repeatedly to erase several
digits, one at a time.

To erase all digits simultaneously, hold down C until the
digits disappear.

If a number contains more than 10 digits:

If you enter a number with more than 10 digits, the first
digits will disappear from the display.

If you wish to check these digits, press M (MODE) and then

RCL (RECALL).

Making a Call

The SERV indicator must be present in the display.

Enter the phone number, including the area code, and press
Send.

The symbol comes on in the display.
When you have made contact with the GSM network, a click is

heard and the message ‘‘CALL’’ is displayed.
When you have been connected to the desired number, the

message ‘‘CALL’’ and the number disappear from the
display. Only then need you hold the phone to your ear.

Ending the call:

When the conversation is finished, press End.

Last Number Recall

Press RCL (RECALL) twice, or RCL followed by the
numeric key 0.

You can also press 0, followed by # (Hash)

If nobody answers, or you hear an engaged or
equipment-engaged tone, or you receive a message that
the number is unobtainable:

Press End. The phone number will be retained
in memory and you can easily repeat the call.
See Last Number Recall below.

If a call is unsuccesful:

The number remains in the display and you can repeat the
call by pressing just Send.

‘‘LAST DIAL’’ is displayed, together with the number last
called.

To make the call, press Send.
See also the chapter Dialling Memory and Scratch Pad.

International Calls

International calls can be made by using the international
access function.

Press M (MODE), followed by

(Star).

*

A minus sign (--) is displayed on the right in the numeric
field of the display. The message ‘‘INTER NO’’ appears
briefly.

Press Send to answer.

Enter the Country Code, the Area Code and the Phone
Number.

When you press Send to make the call, the minus sign (--)
will be automatically replaced by the international prefix of
the country where the phone is presently used.

Emergency calls

To make an emergency call, enter the GSM Emergency
Number 112 and press Send.

The message ‘‘EMERGENCY’’ is displayed.

Emergency calls can always be made, provided
that the SERV indicator is ON continuously or
FLASHES.

Ending the call:

When the conversation is finished, press End.

Unanswered Calls

If a call is not answered, the ■ (Call) indicator will continue
to flash, indicating that somebody has called you.

The flashing

■ indicator will go out if you press any key.

Call Time Meter

During a call the elapsed time, in minutes and seconds, is
displayed.

Minutes

Seconds

Receiving a Call

The SERV indicator must be present in the display.

When you are called, the phone rings. At the same time, the

■ (Call) indicator and the message ‘‘CALL’’ flash in the

display.

When the call is ended, the elapsed call time is displayed
for an additional five seconds.

Audible Call Timer

If Special Function No. 13. Minute Minder is enabled, a
short beep is heard in the earphone every full minute during
the call. Refer to the chapter Special Functions.

Volume Control

During a conversation, you can adjust the volume
of the earpiece with these keys.

Press
crease the volume. Each time you press

▲ (Up) to increase and ▼ (Down) to de-

▲ or

▼, the volume is altered by one step, the full

range being five steps.

Microphone Mute

During a conversation, the microphone can be
deactivated by holding down M (MUTE).

The word ‘‘MUTED’’ is shown in the display.
To resume the conversation, release the M key.

also be stored in the dialling memory. Refer to the chapter
Dialling Memory and Scratch Pad.

Key Lock

You can lock the keypad so that unintentional key action
has no effect if the phone is turned on. This feature is useful
when you, for example, are carrying the phone in a pocket.

The keypad remains locked until you receive a call, or until
you unlock the keypad yourself.

To lock the keypad:

Press M (MODE) and then # (Hash).

‘‘KEYLOCK’’ (Key Lock) is displayed.

To unlock the keypad, you do exactly the same:

Press M, followed by #.

Emergency calls (112) can be made when the
keypad is locked.

Scratch Pad

During a conversation you may take a note of a phone
number given to you by entering the number on the keypad.
After the call is ended, the number will remain in the display
and you can call it immediately. However, the number will

Turning the Phone Off

To turn the phone OFF, press and hold down
the Power key until a click is heard.

Display

Details on the Display and Keys

Alphanumeric field

Numeric field

Status indicators

Alphanumeric Field

●

Displays names and memory location numbers (as
illustrated above).

●

Displays messages, queries and warnings.

●

Displays the strength of the received signal.

●

Displays the elapsed call time while an outgoing call is in
progress.

●

Displays battery meter (if the phone is used as a portable
unit).

Numeric Field

Displays the phone number entered on the keypad, or
recalled from memory.

Status Indicators

PWR Power

Indicates that the phone is ON.

SERV Service

Indicates that service is available from a GSM
network.

If SERV flashes, it indicates that a GSM network
is in range but the phone has not registered on
that network.

■ Call

Flashes to indicate an incoming call and
continues to flash if the call is not answered
(Unanswered Call Indicator).

In Use

The handset symbol is shown during a call and
also while an outgoing call is being connected.
The handset symbol flashes when the call is
being released.

A Alphabetic Mode

Flashes to indicate that you can enter letters and
other characters with the numeric keys 0 -- 9. and
the * and # keys. This is used to enter names
when storing and recalling phone numbers.

FCN Function

Comes on after the M (MODE) key has been
pressed momentarily.

It indicates that a second key can be pressed to
perform a particular function.

Keypad

Numeric keys
1 -- 9 and 0

*

#)

) and

Star (
Hash (

Power/End

Send

Volume control
Forward and back-

ward scroll

CLEARSTORERECALL

MODE/MUTE

This key has two different functions: Power and
End.

Power

Press and hold down to turn the phone ON or
OFF.

End

To terminate a call, press momentarily.

RECALL

Used to recall a phone number from memory.
Press RCL and then enter the number of the

memory location. Refer to the chapter Recalling
Numbers.

Alphabetic mode (letter mode)
Used to recall a phone number stored un­der a name. Press RCL, followed by M
(MODE). Then enter the first letter(s) of
the name. Refer to the chapter Recalling
Numbers.

Send

Used to make a call after a number has been
entered, or recalled from memory, and to answer
an incoming call.

These keys have two different functions:

1. Volume control

▲ (Up) increases and

the earpiece volume during a conversation. If
the phone is used with hands free equipment,
the loudspeaker volume will be adjusted.

2. Forward and backward scroll

▲ (Up) scrolls forward and

backward through the memory locations, or the
names stored in memory, or through the
Special Functions of the phone.

(Down) decreases

▼

(Down) scrolls

▼

Last number recall

Press RCL twice, or RCL followed by 0,
to recall the number last called. Refer to
the chapter Dialling Memory and
Scratch Pad.

Dialling memory

Press RCL, followed by #, to recall the
first number in the dialling memory. Refer
to the chapter Dialling Memory and
Scratch Pad.

STORE

Stores phone numbers (and names) in memory.
Refer to the chapter Storing Numbers.

Stores the settings that you have selected for the Special
Functions. Refer to the chapter Special Functions.

CLEAR

1. If pressed momentarily, it erases the last digit

or letter entered. Can be pressed repeatedly to
erase several characters.

2. If held down, it erases all digits, for example a
phone number, from the display.

3. Exits from the Special Functions.

This key has two different functions: MODE and

MUTE.

1. MODE

Press M momentarily. The text ‘‘FCN’’
(Function) and the FCN indicator come on in
the display. The following functions can be
obtained if a second key is pressed within 10
seconds:

Press M, followed by RCL (RECALL), to
display the first digits of a phone number
that includes more than 10 digits.

Press M, followed by Send, to send the
digits in the display as DTMF signals
when a call is in progress. Refer to the
chapter DTMF Signalling.

Press M, followed by # (Hash), to lock/un­lock the keypad.

Press M twice, or M followed by ▲ (Up),
to select the first Special Function. Fur­ther pressing M or ▲ (Up) repeatedly,
will scroll through all the Special Func­tions.

To select the last Special Function, press
M followed by ▼ (Down). Refer to the
chapter Special Functions.

A Special Function can also be selected
by pressing M, followed by the number
(one or two digits) of the Special Func­tion. Refer to the chapter Special Func-
tions.

2. MUTE -- Privacy key

Hold down M to mute the microphone during a
conversation. If the phone is used with hands
free equipment, the separate microphone will
be muted.

Press M, followed by *, to use the Inter-
national Access function. Refer to the
chapter Basic Operation.

Numeric keys

Used to enter phone numbers to be called, or
stored in memory.