DETEWE OpenPhone 28 User manual

Brand: DETEWE

Model: OpenPhone 28

Type: User manual

Using the

OpenPhone 28

on the OpenCom 1000/1010

Communications System

User Guide

Many thanks for choosing this

DeTeWe product. It satisfies the

demands for highest quality and is

also characterised by its superior

design.

The following instructions will guide

you in using your OpenPhone 28

and provide answers to all your

most important questions. If you

should require any further informa-

tion, please first contact the person

responsible for your system or your

dealer.

Welcome to DeTeWe

The person responsible for the

system is:

Name: .....................................................

Tel. no.: ..................................................

The OpenPhone 28 used in the OpenCom 1000/1010 communications system. . 5

General information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

The design of your telephone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Using your telephone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Power supply/power failure/rechargeable batteries . . . . . . . . . . . . . . . . . . . . . . . . 8

Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Additional notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Scope of delivery. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

If your handset has not been assembled yet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

If your handset has been completely assembled . . . . . . . . . . . . . . . . . . . . . . . . . . 11

The memory card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Removing the memory card. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Inserting the battery. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Removing the battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Locating the charger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Charging the handset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Charging spare batteries. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Notes on rechargeable batteries. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Connecting and operating the headset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Belt clip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Going into operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Registering your handset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Display symbols and keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Display divisions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

The symbols appearing in the display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Text line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Softkey line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Illumination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Softkeys and other keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Softkey: arrow keys. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Softkey: OK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Softkey: Esc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Softkey: Redial . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

C-key / key menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

R-key / hash key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Star key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Contents

SOS key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Number keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Telephoning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

General information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Switching the handset on/ off. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Open listening / hands-free operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Setting the handset volume. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Visual call signalling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Ringer / vibration alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Time / alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Multiple calls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Seizing an external line manually or automatically . . . . . . . . . . . . . . . . . . . . . . . . 28

Seizing a line using direct call keys with signalling . . . . . . . . . . . . . . . . . . . . . . . . 29

Seizing a line using the “Team” direct call key . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

DTMF / touch-tone dialling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Call-charge display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Redialling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Transmitting your telephone number / name. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Menu before and during a call. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

MenuCard in the idle state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Making internal / external calls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Calls on a telephone with an internal preferred key . . . . . . . . . . . . . . . . . . . . . . . 32

External calls on a telephone with an external preferred key . . . . . . . . . . . . . . . 33

Internal calls on a telephone with an external preferred key . . . . . . . . . . . . . . . 33

Terminating calls. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

MenuCard during a conversation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

MenuCard on busy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

MenuCard during a call . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Accepting calls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Using the handset key or the Key menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Calls during a conversation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

MenuCard while an incoming call is being signalled. . . . . . . . . . . . . . . . . . . . . . . 38

MenuCard while dialling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Enquiry, toggling, transferring and conference calls . . . . . . . . . . . . . . . . . . . . . . . . . 40

Enquiry / toggling using the R-key. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Enquiry / toggling using another call key. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Transferring an internal / external call to an internal subscriber . . . . . . . . . . . . 41

Contents

MenuCard when a subscriber is on hold. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Internal / external three-party conference. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

During the conference. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Special calls / conversations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Replying to callbacks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Emergency calls / SOS calls. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Automatic emergency call (“man down” call). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Making calls from the telephone book . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

The telephone book . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

“Central telephone book” MenuCard. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

“Local telephone book” MenuCard. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Team functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

TOP TEAM function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

BROKER'S TEAM function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

PARALLEL TEAM function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

EXECUTIVE-SECRETARY function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Features and MenuCards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Feature settings variants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Using MenuCards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Using programmed keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Using code digits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

The menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

“Main menu” MenuCard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

“Calls” MenuCard. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

“Call diverted” MenuCard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

“Messages” MenuCard. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

“Settings” MenuCard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

“Protection” MenuCard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

“Special features” MenuCard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

“Central config.” MenuCard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

Appendix. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

Care and maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

Menu structure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

Technical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

Index of key words . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

Contents

•A “man down” function in

which a tilt switch automatically

triggers an emergency call.

•A memory card containing the

user's personal telephone set-

tings and telephone book can

be inserted in the handsets,

which means that handsets can

now be used by different peo-

ple. Simply insert your card in a

handset and you can start mak-

ing calls right away.

• The equipment conforms to the

industrial safety class IP 54

(dust- and splash-proof).

Make yourself familiar with your

telephone equipment. You will dis-

cover new functions that will make

communication and organisation

much easier.

General information

The OpenPhone 28 is a cordless sys-

tem telephone that can be operated

on the OpenCom 1000/1010 com-

munications system. The newly

designed menus enable easy opera-

tion and fast access to the many

functions and features of your sys-

tem.

You can configure the telephone's

features and program functions on

the terminal itself or, equally conve-

niently, by means of the OpenCom

1000/1010 Configurator.

The OpenPhone 28 is suitable for

operation in offices, outdoors or

even in dusty environments. It is

equipped with the following special

features:

• An SOS key that makes an

emergency call if you press it

once.

The OpenPhone 28

used in the OpenCom 1000/1010

communications system

Conformity

The CE stamp on the product con-

firms that it meets the technical

guidelines on user safety and elec-

tromagnetic compatibility valid at

the time the corresponding Declara-

tion of Conformity was issued under

European Directive 99/5/EC.

The Declaration of Conformity can

be found in the Internet at

http://www.detewe.de

Safety precautions

Only use this product in countries

where the relevant authorities have

granted an appropriate licence.

The equipment conforms to the

industrial safety class IP54 in accor-

dance with IEC 529 / EN 60 529

(dust- and splash-proof).

Please bear the following in mind

when installing, connecting and

operating your telephone:

• The handset must not be oper-

ated in areas where there is

danger of explosions occurring.

• Do not place the handset,

charger or accessories in the

vicinity of:

– water, moisture or damp

areas (e.g. in bathrooms)

– heat sources, direct sunlight

or poorly ventilated areas

– devices which produce

strong magnetic fields, elec-

trical devices, fluorescent

lamps, computers, radios or

television sets

– areas where the equipment

may be covered, its ventila-

The design of your telephone

Using your telephone

The design of your telephone

Using your telephone

tion impaired, or where fluids

could penetrate into it. Do

not leave your handset lying

outside in the rain, for exam-

ple.

– areas subject to vibration,

shock or extreme tempera-

ture fluctuations.

Please be sure to follow the instruc-

tions below when installing, con-

necting and operating your tele-

phone:

• Only connect authorised acces-

sories.

• Only use the A/C plug-in

adapter supplied (No. 4 999 045

014 or 4 999 051 605 for UK) or

the A/C plug-in adapter type

called “Plus” (No. 4 999 070 859

or 4 999 070 860 for UK).

• Do not use plug-in adapters

that have visible damage (a

cracked or broken casing).

• Scientific research has shown

that in certain cases, medical

equipment can be influenced

by operational DECT tele-

phones. You should therefore

• Keep the handset and acces-

sories out of reach of small chil-

dren.

Power supply/power fail-

ure/rechargeable batteries

This product requires a 230-V alter-

nating current power supply. This

product can only be switched off by

removing the adapter plug from the

mains socket.

The mains supply voltage in some

countries is 110 V.

You can purchase the necessary

plug-in adapters as accessories.

Please contact your dealer's cus-

tomer service department.

In the event of a power failure, the

contents of the memory (program

and user data) are saved without

them being unchanged.

Please refer to the important notes

on using the rechargeable batteries

on page 15.

adhere to any regulations appli-

cable in medical institutions

regarding the operation of

cordless telephones.

• In general, other electronic

equipment is protected from

high-frequency emissions. How-

ever, in the event that a device

is inadequately shielded, mal-

functions can result.

• Never throw a battery into a fire

as it could explode. In order to

prevent injury or fire damage,

never short-circuit the contacts

of the battery or allow them to

touch objects that can conduct

electricity.

Warning! Before operating your

telephone, please make sure that

there are no small metal objects

adhering to it near the receiver or

loudspeaker (at the back of the

handset) due to the magnets in

these parts of the device. This could

cause injury.

WARNING!

Never

– open the telephone yourself

– touch the contacts with sharp or

metallic objects.

• In order to clean the telephone,

only use a slightly damp cloth.

The design of your telephone

Using your telephone

Usage

This handset, like any cordless tele-

phone, operates using radio signals,

which cannot guarantee the estab-

lishment of a connection under all

conditions. Therefore, you should

never rely solely upon any cordless

telephone for essential communica-

tion (e.g. in medical emergencies).

The design of your telephone

Using your telephone

DECT and GAP

Your handset uses a digital radio

connection in accordance with the

Digital Enhanced Cordless Tele-

phone (DECT) standard for the con-

nection to the base station. This

digital channel guarantees the high-

est voice quality possible without

static or background noise.

The OpenPhone 28 uses the Generic

Access Profile (GAP) to signal

between the communications sys-

tem and the handset.

The Generic Access Profile (GAP)

and the DECT standard define meth-

ods according to which digital cord-

less telephones can establish con-

nections. The GAP standard is not

manufacturer-specific, so it is possi-

ble to combine base stations and

handsets from different manufac-

turers with each other. Basic func-

tions (i.e. making and receiving

calls) are always possible when

using these combinations. Other

functions which your OpenCom

100/1100 communications system

provides together with your hand-

set (e.g. display of telephone num-

bers or call charges) may not be

available on other manufacturers’

devices, however.

Additional notes

Owing to the digital transmission in

the frequency used, under certain

structural conditions there may be a

radio shadow within this range. In

such cases, the transmission quality

could suffer because of intermittent

short gaps. If this occurs, you should

move a short distance away to get

out of the radio shadow and restore

the usual transmission quality.

Whenever the range is exceeded,

the call is cut off.

In order to avoid interference from

other electronic devices (e.g. radios,

loudspeakers, etc.), we recommend

that you keep the base station and

handset as far away from such

devices as possible. They should be

kept a minimum of one meter apart.

Before using the handset, users of

hearing aids should note that such

aids can receive radio signals which

may cause an unpleasant hum if

powerful enough.

The design of your telephone

Using your telephone

Scope of delivery

Please check that the following have

been supplied:

• OpenPhone 28 handset with a

belt clip and memory card

• Rechargeable battery

• Charger

• A/C plug-in adapter (No. 4 999

045 014 or 4 999 051 605 for

UK), 230 V with a connector

cable.

If your handset has not

been assembled yet

If your handset has not been com-

pletely assembled, you will need to

do the following:

•insert the memory card (see

page 12),

•insert the battery (see page 12),

and

•if necessary, remove the protec-

tive plastic foil from the display.

•Your system administrator must

then perform the subscription

procedure in order to register

the handset on your communi-

cations system.

The design of your telephone

Installation

Your OpenPhone 28 is then ready

for operation.

Finally, connect the charger (see

page 13).

If your handset has been

completely assembled

If your handset has already been

completely assembled and also reg-

istered on your communications

system, you will only need to con-

nect the charger (see page 13).

The memory card

You can only make calls with your

handset once a memory card has

been inserted (the handset is sup-

plied with the card inserted). Data

crucial to your handset, such as your

telephone book, are saved on this

card. If you change handsets, you

can use your memory card to make

calls on the new handset right

away.

The memory card manager avail-

able as an accessory enables you to

process the data saved on the card.

To purchase this product, please

contact your dealer's customer serv-

ice department.

Installation

Inserting the memory

card

If the memory card is not inserted in

the handset or has to be exchanged:

• Carefully press the memory card

out of its frame with your fin-

ger.

Removing the memory card

• Step (1): Holding the memory

card at an angle, push it into

the memory card slot with the

short edge under the half-moon

shaped retaining lugs. (a) The

gold contacts must be facing

down.

• Step (2): Press the memory card

downwards into the slot until it

is locked into place by the

retaining lug (b).

Inserting the memory card

The design of your telephone

Installation

Removing the memory

card

You will only need to remove the

memory card if you want to pass the

handset on for use by someone else

or need the card for a new handset.

• Take the battery out of the

handset (see page 13).

• Press the retaining lug (b)

upwards, at the same time lifting

the memory card slightly.

• Pull the memory card out.

Inserting the battery

• Push the battery into the case

(1).

• Press the end of the battery

where the catch is located (2)

downwards until it clicks into

place.

Inserting the battery

Removing the battery

• Place the handset on a table

with the display facing down.

• Press the catch downwards (1),

at the same time lifting the bat-

tery (2).

Removing the battery

Locating the charger

Installation site

Place the charger on a flat, even sur-

face, e.g. a table. Select a location

that is not damp or in direct sun-

light.

Place your charger on a non-slip

base; this is necessary in the case of

new or polished furniture. Paint and

polish may contain components

that damage the rubber feet on the

charger. In this situation, the feet

may leave unsightly marks on the

surface of your furniture. DeTeWe

does not accept any liability for

damage of this nature.

Notes on the plug-in adapter

The plug-in adapters for the “Stan-

dard“ and “Plus” chargers have dif-

ferent plugs and different capaci-

ties.

If you have a “Standard” charger,

only use the “Standard” plug-in

adapter (No. 4 999 045 014 or 4 999

051 605 for UK). If you have a “Plus”

charger, only use the “Plus” plug-in

adapter (No. 4 999 070 859 or 4 999

070 860 for UK).

• Insert the small plug into the

socket on the back of the

charger.

• Plug the adapter into a mains

socket.

The charger is now operational.

The design of your telephone

Installation

Charging the handset

Simply place the handset in the

charger. You will then hear an

acknowledgement tone and the dis-

play will be briefly illuminated. Your

handset remains in the same state

that it was when you put it in the

charger, i.e. on or off.

The battery symbol in the symbol

line will move until the battery is

fully charged. It is normal for a bat-

tery to warm up while recharging.

The design of your telephone

Installation

Charging spare batteries

If you have the “Plus” version of the

charger (accessory), you can charge

a spare battery while at the same

time charging your handset.

• Open the “Plus” charger (1).

• Insert the spare battery in the

battery compartment (2) as

illustrated.

• The LED in the bottom of the

charger turns from green to red,

indicating that the battery has

been inserted correctly and is

being charged.

• When the spare battery is fully

charged, the charging cycle will

terminate and the LED will turn

green again.

Charger “Plus”: charging spare bat-

teries

Charger (“Standard”)

Charger (“Plus”)

Notes on rechargeable

batteries

Never throw a battery into a fire as

it could explode.

In order to prevent injury or fire

damage, never short-circuit the

contacts of the battery or allow

them to touch any objects that can

conduct electricity.

Whenever a battery is used for the

first time, its charge is not known to

the handset. For this reason, the

battery symbol only appears after

the first charging cycle in the hand-

set has been completed.

Whenever

you put a battery into the handset,

the handset should then be placed

in the charger for at least 14 hours

so that the battery is fully charged.

You can subsequently leave the

handset in the charger for indefinite

periods of time, as the battery can-

not be overcharged.

If you are not going to use your

handset for some time, e.g. when

you go away on holiday, take the

battery out. It will have lost very lit-

tle of its charge when you put it

back in.

Do not leave the battery in direct

sunlight. This will extend its life-

time.

Charging and operating times

Charging time: approx. five hours

from fully discharged to fully

charged.

Talk time: up to eight hours (fully

charged).

Stand-by time: up to 75 hours (fully

charged).

Note

When the charge level of the batter-

ies is unknown, their charging time

to full capacity is approx. 14 hours.

Charge-level indicator

The charge level of the batteries is

shown in the display. The symbols

have the following meanings:

Charge level 81 - 100 %

„

Charge level 61 - 80 %

√

Charge level 41 - 60 %

…

Charge level 21 - 40 %

†

Charge level 0 - 20 %

†

(Frame flashes) The batter-

ies are almost discharged;

warning signal.

Charge warning

When the battery is almost fully dis-

charged, the battery symbol in the

The design of your telephone

Installation

display flashes and you hear a bat-

tery warning signal.

If you are having a conversation at

the time, you have another three

minutes to finish your call before

the handset switches itself off. If

you are not having a conversation

and the handset is not in the charg-

er, “Battery empty” appears in the

display. You can no longer use the

handset to make a call.

Connecting and operating

the headset

Headsets are available for the hand-

set as accessories:

• the Standard T171 headset, or

• alternatively, the TC 500 head-

set.

The connector socket is on the

upper right-hand side of the hand-

set. Carefully remove the protective

cover from the socket.

Connecting the headset

Insert the headset plug in the sock-

et until it clicks into place.

Please read the headset guide for

information on how to operate it.

You can use the headset to tele-

phone without having to use your

hands. Your handset automatically

detects a connected headset and

switches the microphone and

The design of your telephone

Installation

receiver in the handset off. If you

want someone to listen in, you can

activate the open-listening loud-

speaker.

The handset rings whenever a call

comes in. Everything else functions

as it usually does. To adjust the

vol-

ume

, press and hold either the

upper or the lower part of the arrow

key (see the section entitled “Set-

ting the handset volume” from

page 27 onwards).

Notes on headset operation

If you operate the headset on other

equipment, very loud audio signals

or events may cause your hearing to

be damaged. Other equipment does

not provide your hearing with the

requisite protection. Only operate

the headset in conjunction with the

OpenPhone 28.

The design of your telephone

Installation

Belt clip

The clip is fastened to the back of

the handset by means of two small

screws.

Belt clip

Important note

Fasten the handset to your clothing

in an upright position to guarantee

that the “man down” function

(automatic emergency call) oper-

ates correctly (see also page 44).

mentation or ask your system

administrator.

- Press the

Menu softkey and select

System.

- Select

Subscription and then

press

New.

- You will be prompted to key in

the PARK (Portable Access Rights

Key).

- Press

Go on. You will then be

prompted to key in the

access

key

. When you have entered the

right key, you can assign a name

and a telephone number to your

handset. The name will then

appear in the display in the idle

state. As a rule, telephone num-

bers are assigned by the system.

The design of your telephone

Going into operation

Registering your handset

Your handset can be operated on a

maximum of ten different commu-

nications systems. In order to do

this, it must be registered (“sub-

scribed”) on every system.

In the case of operation in the

OpenCom 1000/1010 communica-

tions system, registration (subscrip-

tion) is undertaken by your system

administrator.

You will find details of the subscrip-

tion procedure required in order to

on more than one system on page

57.

If your system administrator has not

registered your handset, or if you

want to register the handset as a

GAP telephone on another system

or base station, please proceed as

follows:

When you have inserted and

charged the battery, you will see

“No system” in the display. Switch

your communication system or base

station to its registration mode. For

information on how to do this, and

on the access key, please refer to

the communication system's docu-

Going into operation

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DETEWE OpenPhone 28 User manual

DETEWE OpenPhone 28 User manual

DETEWE OpenPhone 28 User manual

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