Ericsson EH 237 User manual

EN/LZT1261218
R1
Ericsson EH237
Handheld Telephone fof the TAGS and ETACS
Cellular Telecommunications Networits
User’s Manual
ERICSSON

This manual descrtbes Ericsson EH237,
lype 1341, all versions
First edition (S^ptamher 1993)
This manual b published by Ericsson Mobfis Communlcatfons AB,
withoiJt any warranty. Improvarnents and changes to this rraniial
necessitated by typographical errors, inaccuracies ot current ^nforma
don, Of ImpfovaitiBit^ to prograrns and/of equipment, may be made by
Ericsson Moblic Commar^lcafions 48, at any time and wflhout notice.
Such changes will, however, be incorporated Into new editrons of this
manual.
Alt rights feseivsd-
© Ericsson Mobile Communlcaiions AB. 1993 .
Publicalicn number: ENyLZT 1261216 R1.
Ptirded In Sweden.

APPROVED fw connectfon to
lel&ccKnmunlqaOon systems specified
fn Iho instrudkons for u&a subject
to tf>e oofidEtlDn sel out tn them.
S/120&^4JP/S0276:)
Thte apparatus Is approved for conncclton to any
TAGS cellutar network run by Racal-Vodaterie Limlled
and Cell net (Telecom Securlcor Cellular Radio Limited).
Hie facilities offered by the apparatus are Identlcat on
any network In so far as a natwark Is able to support
any particular factltty^
Service providers can arrange for the necessary adjuslmenls
Ort the natwofk or networks whose service they provide.
Safety and Precautions
• lUtn ofl your cellular lelsptiqne when in an aircraft. The
use of cellular telephenes In an aircraft may be dangerous
to the eperalion of the aircraft, disrupt the cellular network
and is Hlegal. Failure to observe this instruction may lead tc
suspansion or denial of cellular telephone services to ttie
offender, or Iega3 er^on, or bolh.
• Tlrm off your caiyar telephone when at a refuelling point,
• Users are reminded ol the need to observe restrictions on
the use of r^o ec^uipment In fuel depots, chemical ptantSp
or whore blasting operettons are In progress.
• There may bo a hazard associated wKh using your cellular
tetophone close to personal me(Scal efectronic davicTBs, such
as hearing akis and paoerrakers.
• Operation ol your cellufar telephone ckfse to other electron¬
ic equipment, such as televtslorts. radros and personal com¬
puters may cause irvterlerence.
• Do not d^rrKHjnt the antenna. If a child gets rt into the throaty
there may be a suffocation risk.
• Do not attempt 1o dismantie your cellular telephone yoursell .
There are no user-serviceabte parts inside.
• Do not expose your cellular telephone to rain or spHI bever¬
ages on it.
• The telephone package indudes plastic bags. Keep plasllc
bags away from children.

* Hav^ cellular t^epbone installed In a veNde by quali¬
fied personnel.
• H you u^a ydur caUutar t^aphone In a vehicle^ H is advb^d
that a handheld microphone or talaphone handset should
Fiaf be used by the driver while the vehicle is movingp ex¬
cept in an emer^ncy. Speak only Into a Timd neck slun^ or
clipped-on microphone when rl would noi dislreci your alien-
tlon from the road. Do not stop on ihe hard shoulder of a
motorway to answer or make a call, however urgent.
m Use only Charger 4225 and AC/DC Converter 4222^11 K,
Charger 4226 and AC/DC Convertef 4222-iJK, or TraveE
charger 4221*‘UK with this telephone. Ll$e Ofl any other bat¬
tery charger arKt/or AC/DC Converter will invalidate any ap'
provaJ given lo this telephone and may be dangerous.
Battery Infomiation
A battery that is detlvered with the phone is not charged. How¬
ever, there may be enough power to turn the phone on.
Before us^ng the phone, it is recommended that you condHion
the baUery by lirst chari^ng It, and then dlsharging H, three times
in successiorT. See ihe chapter Bstteries and Recharging lor
intomnation about batteiy [::onditk}ning.

Table of Contents
Satoi/ anti Precautions III
Battory Informafen Iv
Introduction
About tha Phone
What Ttvs Manual Contains
Road (he information
troTTi Vbur CoHular OpersTor!
Dc5 You Wert Anoiher language
In the Display?
1
1
3
3
4
Basic Operation 5
Attaching tha Banety
S
Tumlng the Phone On
5
Entering a Phone Number
7
Making a Cali
3
Caff Time Meter
3
Audibfs Cati Timer 3
Caff Unit Meter
9
Ending a Catt e
Last AiiLrmbsf Ffe-dtaf 9
EmBfgBficy Caffs
9
Receiving a Call
10
Ending a Caff
10
Unanswered Catis
10
Volume Conifoi
10
Two tnOependent Votume SeWnga 11
Micropharka Mule 11
Hook Flash
11
Scratch Pad during a Conversation 11
Keypad Lock
11
Turning Ihe Phone Ofl
12
Batterws and Rechargir^g
13
BanorleB
13
inserting and Ramaving a Battery 13
Battery Meier
14
Low Battery Aiarm 14
Battery Discharge
14
Recharging a Battery
15
Using the Standard Charger 15
Concflionlng a Battery 17
Battery Care and Malrrtenenoe
17
Bell Clip
19
Details on the Display and Ke^s 1 §
Display 19
Atf^imumeric Fieici 19
Ntifuark; Ftski 19
Siaius indicaior^ 19
Keypad 20
HlumhaJiqn 24
AjLKllhle Signals 24
Ffmging Stgnai 24
Low Bemery Aiafm Sign^ 24
Error Sigrrai 24
Conitfrmtion CifCk 24
Koy CifCk^ or Tones 25
Visual Signals 25
Using the Dulling Memory 27
Using rlie DiaJring MBmory
as a Scratc*!^ Pad 27
Last Number Redtai 27
Recallirtg the Number Lael Called 27
RBGBlIlfiQ the Olhet Numbers 27
Reviewing the First Digits i1 a Recaited
Number Cnnlejns N^are Itian IQ Digits 29
Storing Numbers 29
Storing a Number (ar>d Name} 29
Msmory Protectton 30
Msmoty Puff 30
Erasing a Stared Number (and Name) 30
Soma Hirrta 30
« and i 30
Numbers 3t
Memory Locations 1 tolO 31
Recalling Numbers 33
Numeric: and Alphabetic Mode 33
Reeling a Number
usi ng Numeric Mode 33
Sc^foWnf through the Memory 33
Speed CaiHrtg 33
Recalling a Number
Using Alphabelic Mode 34
Scrolling through the Memory 34
V

RsviBwng iha Fifst Digits rt a Recalled
l^umber Contain Mote Ihan TO Dlgrts 34
Appendlng Prgits iQ a Racalled Nu mber 34
RapEacing lha Last Dtglls
of a Retried Number 34
^Hiddan" Memory Locatforis 35
Storing a Number (and Name) 3S
Sending a Number 35
Revloi^rig a Nufnbar 3 i
Erasi ng a Nymbet (and UawE ) 36
DTMF Sl^nalflng 37
Auiomaftc DTMF 37
DTMF Mode 37
DTMF Pause Funetiao 38
Using Se venal Fatjse^ 38
Pre-programmed DTMF Signaliing 39
A Mini 39
Special Functions 41
Accessing a SpedaJ Furvcbon 42
A/ieirrafj'v^ iMoffsod for Accessing
a Special Func^on 43
A Combination of ths Two AfefJ^cnJ^ 43
Leawng a Funcr^n 43
Changing a Setting 43
Sloring a New Setting 44
Ringing Sig nal Volume 45
Zr Ringing Signal Tone 45
3. Key Clfcks, Ksy Tones
nr Silent Keyp^ 45
4. Minule Minder 46
5. Badk Light 46
6. Display Conirasi 46
7. Automatic Ra-try 46
5. NAM Selectinn 47
6. Country SelactJon 47
10, VcicB-ActivaJed
Answering 47
11- Etecrronic Lock - Cal Rsslridiojvs 48
Changing Your Secujrjy Code 48
Lodging ifts Pbone or
Changing fhe ioc9c ievei 48
Unfocking the Phone Tsmporanfy 49
Untocking the Phone PenmnBnUy 49
12. Language Selection 49
13l Cal Counter 49
Ffeadin^ Off the Caff Caonter 49
PlasBttfng die Caif Counter 49
14. Laat Cali TlmB/tasi Caif Unlls 50
15. Resattahte Total Call Tmei
Rssatti^le Total Call Units 50
Reatdng Off m Totaf Caif Time/
Calf Units Meter 5Q
Resetting the Calf JJmef
Caif Units Mater 50
16. Tola! Call TTtW
Total Call Units 50
17. Channel Display 50
18. Battery Voltage 5t
19. Enquiry Number 5t
20. Emergency Number 51
Acc659Orl03 53
Handsftee Usage In a Vohktte 53
Operation 54
Portable Handsfree 54
VehldB Fpwst Charger and Travaf Charger 55
Problems You Can Solve 57
Phone Does Not ComB On 57
Rhnklng Rad indicator Light
“ Alarm Signal &iunds 57
Steady Orange I ndlcalor (Jghl 57
NO SVC {Nd Service) Shows
Continuously In- the Display 57
Rec^Bived Signal Is Weak 57
ANTENNA Is Displayed. 56
LOCKED Is DlfipHayad SB
KEYLOCK ts Displayed 58
No Feedback Clicks or Tonas Are Heard
when You Pfsss Ihe Keys 58
Appendix:
Calling Line Idantlf^oation 59
tncqming Call 59
Calls In Absence 59
CLI Memory 59
Recaifing e hfuntter
&WTr the CU Memary BO
Erasing a Number
from the CU Mamory BO
TraiisiBrnng a Numf^r
to Parmanem Sfa/?igi& 6D

Introduction
About the Phone
Battery
Indication
Diipidy
> ^ypad
\
MicrophofH
This phone is a wry sirtall and light handheld celMar phone
which Is sifnple 1o use. After yew have tumed H on. you can
use it in muc^ the sarne way as any other phone.
However, a cellular phone operaiss by usir^ radio senate
which can be subject to imerferenoe. It may sometimes
happen, therefore, that you need to move the phone to a
position where you can obtain a better radiio signaJ.
Indoors, It is usually best lo use the phone near a window.
1

IntroductJofi
Display and Keypad
JlLCtJ 01
Atphanumerlc field
0 t^3'iS6^89
Numeric Held
PWR A V 1
Status IndkatDis
Numeflclift^
TTite key has two dltterent functions: Power and End.
Power. To turn the phone ON or OFR press and hold
down the key for ^ feast half a second. A dtak confirmB
when tfie phone is actually turned on or off. You cannot,
however, turn the phone oH when a can Is in progress.
End. To temrunate a call
press the key mofnemarlly.
2