AS28H Handset / Israel EN / A31008-M2051-B501-1-VU19 / Overview.fm / 19.02.2009
1
Gigaset AS28H handset
1 Charge status of
the batteries
2 Display keys
3 Message key
Flashes: new messages
1
received
4 Handsfree key
5 Control key (u)
6 Talk key
7 Directory key
(press down)
8 End call and 
2
On/Off key
9 Ringer on/off 
3
(press and hold 
4
in idle status)
5
6
10 Keypad lock on/off
7
(press and hold)
8
11 Recall key
- Consultation call
(flash)
- Dialling pause
(press and hold)
12 Microphone
9
10
13 "Microphone off" key
Display keys on handset:
Pressing a key launches the function that
appears above that key in the display.
V
11.12.
INT
d
11:56
MENU
Display
icon
Function when pressed
INT
Call other registered handpage 7.
sets
Open main/submenu (see
page 10).
Menu tree
Go back one menu level.
Scroll up/down or adjust
volume with u.
Move cursor to left/right
with u.
Backspace deletes one
character at a time from right
to left.
Confirm menu function or
save entry.
MENU
“
U
T
h
˜
OK
¢
¢
11
12
13
ECO DECT
You are helping to protect the environment with your Gigaset AS28H.
Reduced energy consumption
Your telephone has a power-saving adapter plug and uses less power.
Reduced transmission power (depending on the base station)
The transmission power can only be reduced if your base station supports this function.
The transmission power of your telephone is reduced automatically:
◆ The handset's transmission power is reduced depending on the distance to the base station.
◆ The transmission power on the base station is reduced to virtually zero when only one handset is
registered and the handset is in the base station.
You can reduce the transmission power of the handset and base station even more by using Eco Mode/
Eco Mode+. For further information, please see your phone's user guide.
AS28H Handset / Israel EN / A31008-M2051-B501-1-VU19 / Overview.fm / 19.02.2009
2
Safety precautions
Read this user guide and the safety precautions carefully
before use. Explain their content and the potential
hazards associated with using the telephone to your
children.
$
Only use the mains adapter supplied.
¢
Fit only the recommended, rechargeable
batteries (
page 9), i.e. never use any other
battery type or non-rechargeable batteries as
this could result in significant health risks and
personal injury.
The operation of medical appliances may be
affected. Be aware of the technical conditions in
your particular environment, e.g. doctor's surgery.
Do not hold the rear of the handset to your ear
when it is ringing. Otherwise you risk serious
and permanent damage to your hearing.
The handset may cause an unpleasant humming noise in hearing aids.
Do not install the phone in a bathroom or
shower room. The phone is not splashproof.
Do not use your phone in environments with a
potential explosion hazard, e.g. paint shops.
ƒ
If you give your Gigaset to someone else, make
sure you also give them the user guide.
Disposal
Batteries should not be disposed of in general
household waste. Observe the local waste disposal regulations, details of which can be
obtained from your local authority or the dealer
you purchased the product from.
All electrical and electronic equipment must be
disposed of separately from general household
waste using the sites designated by local
authorities.
If a product displays this symbol of a crossed-out
rubbish bin, the product is subject to European
Directive 2002/96/EC.
The appropriate disposal and separate collection of used equipment serve to prevent potential harm to the environment and to health.
They are a precondition for the re-use and recycling of used electrical and electronic equipment.
For further information on disposing of your
used equipment, please contact your local
authority, your refuse collection service or the
dealer you purchased the product from.
¢
Emergency numbers cannot be dialled if the keypad lock
page 1) is activated!
(
Not all of the functions described in this user guide are
available in all countries.
Care
Wipe the charging cradle and the handset with a
damp cloth (do not use solvent) or an antistatic
cloth. Never use a dry cloth. This can cause static.
Contact with liquid
!
If the handset should come into contact with liquid:
◆ Switch the handset off and remove the batteries immediately.
◆ Allow the liquid to drain from the handset.
◆ Pat all parts dry, then place the handset with
the battery compartment open and the keypad
facing down in a dry, warm place for at least
72 hours (not in a microwave, oven etc.).
◆ Do not switch on the handset again until it is
completely dry.
When it has fully dried out, you will normally be
able to use it again.
AS28H Handset / Israel EN / A31008-M2051-B501-1-VU19 / starting.fm / 19.02.2009
3
First steps
Check the pack contents
◆
◆
◆
◆
◆
◆
one Gigaset AS28H handset,
one charging cradle,
one mains adapter,
two batteries,
one battery cover,
one user guide.
Setting up the charging cradle
The charging cradle is designed to be operated in enclosed, dry areas at temperatures
ranging from +5°C to +45°C.
Place the charging cradle on a level, non-slip surface.
¤
Please note
Pay attention to the range of the base station.
This is up to 300 m in unobstructed outdoor areas and up to 50 m inside buildings.
page 1) is activated.
The range is reduced when Eco Mode (
¢
The phone's feet do not usually leave any marks on surfaces. However, due to the multitude of different varnishes and polishes used on today's furnishings, the occurrence of
marks on the surfaces cannot be completely ruled out.
You can also mount the charging cradle on the wall.
Please note:
◆ Never expose the telephone to the influence of heat sources, direct sunlight or other
electrical devices.
◆ Protect your Gigaset from moisture, dust, corrosive liquids and vapours.
Connecting the charging cradle
2
1
¤ Connect the flat plug from the power supply 1.
¤ Plug the mains adapter into the plug socket 2.
2
If you need to disconnect the plug from the charging cradle,
press the release button 1 and disconnect the plug 2.
1
AS28H Handset / Israel EN / A31008-M2051-B501-1-VU19 / starting.fm / 19.02.2009
4
Setting up the handset for use
The display is protected by a plastic film. 
Please remove the protective film!

Inserting the batteries and closing the battery cover
Warning
¢
page 9) recommended by Gigaset
Use only the rechargeable batteries (
Communications GmbH *. Never use conventional (non-rechargeable) batteries, as
this could result in significant health risks and damage to property. For example, the
outer casing of the batteries could be destroyed or the batteries could explode.
The phone could also malfunction or be damaged as a result of using batteries that
are not of the recommended type.
* Gigaset Communications GmbH is a licensee of the Siemens trademark.
¤ Insert the batteries the right
way round.
The polarity is indicated in/on
the battery compartment.
+ –
¤ Slide the battery cover back into the
main casing until it clicks into place.
If you need to open the battery cover,
for instance to replace the batteries,
place your fingertip in the grooved area
on the top of the cover and slide down.
AS28H Handset / Israel EN / A31008-M2051-B501-1-VU19 / starting.fm / 19.02.2009
5
Registering the handset to the base station
Before you can use the phone, you must first register the handset to the base station.
The actual registration procedure will depend on the type of base station.
Automatically register the AS28H handset to the Gigaset AS280DUO/AS285 base station
V
Put into base
MENU
V
Registering
¤ Place the handset with
the display facing up
in the base station.
The handset registers automatically.
Registration can take up to 5 minutes. 
Do not remove the handset from
the base station during this time.
Manually register the AS28H handset
You must activate manual registration of the handset on both the handset and the
base station.
1. On the handset: MENU
Settings
OK
Handset
OK
Register HS
Enter the base station system PIN (default setting: 0000)
OK.
¢
¢
V
¢ ¢
¢ ¢
¢
The registration screen is displayed.
Registering
2. On the base station: Within 60 seconds of entering the system PIN, press and hold the
registration/paging key (min. 3 seconds). See also the user guide for the base station.
After successful automatic or manual registration, the idle screen is displayed:
V
INT
MENU
Charge status of the batteries:
– = e V U (flat to full)
– = flashes: batteries almost flat
– e V U flashes: charging
The handset is assigned the lowest unassigned internal number (1–4). If more than one
handset is registered to the base station, the internal handset number appears in the top
left of the display, e.g. 2. If the internal numbers 1–4 are already assigned to other
devices, number 4 will be overwritten.
Please note
Only place the handset in the base station or charging cradle that is intended for it.
AS28H Handset / Israel EN / A31008-M2051-B501-1-VU19 / starting.fm / 19.02.2009
6
Initial charging and discharging of the batteries
The correct charge level can only be displayed if the batteries are first fully charged and
discharged.
¤ Place the handset in the base station or charging cradle for
eight hours.
¤ Then remove the handset from the base station or charging cradle
8h
and do not replace it until the batteries are fully discharged.
Please note
◆ After the first battery charge and discharge you may replace your handset in the
base station or charging cradle after every call.
◆ Always repeat the charging and discharging procedure if you remove the batteries
from the handset and reinsert them.
◆ The batteries may warm up during charging. This is not dangerous.
◆ After a while, the charge capacity of the batteries will decrease for technical
reasons.
Setting the date and time
Set the date and time so that the correct date and time can be assigned to incoming calls,
and so that the alarm can be used.
¢
¢ ¢
¢
MENU
Settings
OK
Date/Time
OK
Date:
~ (enter the day, month and year in 6-digit format)
OK
Time:
~ (enter hours and minutes in 4-digit format)
OK (display message: Saved)
a (press and hold to return to idle status)
¢
¢
¢
¢
¢
¢
¢
Please note
When entering the time and date, you can move the position of an entry to the left
or right by pressing the control button up or down.
Display in idle status
Once the phone is registered and the time set,
the idle display is shown as in this example. 


11.12.
INT
V
11:56
MENU
Activating/deactivating the handset
Press and hold the end call key a to activate or deactivate the handset.
If you place a deactivated handset in the base station or charging cradle, it will automatically activate.
Your phone is now ready for use!
If you have any questions about using your phone, please read the tips on troubleshooting
page 9) or contact our Customer Care team
page 9.
("Questions and answers"
¢
¢
AS28H Handset / Israel EN / A31008-M2051-B501-1-VU19 / main.fm / 19.02.2009
7
Making calls
Using the directory and lists
Making external calls and ending calls
Directory
External calls are calls using the public telephone
network.
~ (Enter the phone number) c.
The phone number is dialled. (Or you can first
press and hold c [dial tone] and then enter the
number.) During the call you can adjust the earpiece volume using t and set the volume with u.
End the call/cancel dialling:
Press the end call key a.
¢
Accepting a call
The handset indicates an incoming call by ringing
and by a display on the screen.
Press the talk key c to accept the call.
When Auto Answer is activated (see Menu tree,
page 10), simply remove the handset from the
base station/charging cradle.
In idle status, use t to activate the menu for setting the call volume and use u to set the volume.
¢
Switch to mute
You can mute your handset when making external
calls. Your caller can no longer hear you.
Press the "Microphone off" key m during the call to
activate/deactivate the function.
To open the directory: press h.
You can save up to 80 phone numbers
(max. 32 digits) with corresponding names
(max. 14 characters). Enter letters/characters
page 9.
¢
Saving the first number in the directory
h ¢ New Entry? ¢ OK
¢ ~ (enter number) ¢ OK
¢ ~ (enter name) ¢ OK
Storing a number in the directory
h ¢ MENU ¢ New Entry ¢ OK
¢ ~ (enter number) ¢ OK
¢ ~ (enter name) ¢ OK
Selecting a directory entry
Open the directory with h. You have the following
options:
◆ Use u to scroll through the entries until the
required name is selected.
◆ Enter the first character of the name and scroll
to the entry with u, if required.
Dialling with the directory
h ¢ u (select entry) ¢ c
Handsfree talking
Using other functions
To activate while dialling:
Enter the number ~ and press the handsfree
key d.
The following functions can be selected with u:
Switching between earpiece and handsfree
mode:
During a call and when listening to the answer
machine (AS285 only), press the handsfree key d
to activate or deactivate handsfree talking.
During a call, use t to activate the menu for setting the handsfree volume and use u to set the
volume.
Making internal calls
Internal calls are free calls to other handsets that
are registered to the same base station.
To make a call to other handsets, press
¢
¢
~ (1...4, enter internal number of the
handset), the handset is called or
◆ INT
star key P, all handsets are called.
When a participant answers you can speak to
them. To end the call, press the end call key a.
◆ INT
h ¢ u (select entry) ¢ MENU
New Entry
Save new phone number.
Show Number
Display the phone number.
Use Number
Edit Entry
Edit or add to the number.
Then dial or select other
functions from the MENU.
Edit selected entry.
Delete Entry
Delete selected entry.
Send Entry
Send a single entry to another
page 8).
handset (
Delete all directory entries.
Delete List
Send List
Shortcut
¢
Send the complete list to
page 8).
another handset (
For shortcuts, assign the
current entry to a key.
¢
AS28H Handset / Israel EN / A31008-M2051-B501-1-VU19 / main.fm / 19.02.2009
8
Using shortcut keys
You can assign directory entries to the keys 0
and 2–9:
h ¢ u (select entry) ¢ MENU ¢ Shortcut ¢ OK
¢ ~ (press the key you want to assign the entry to)
To dial, press and hold the required shortcut key.
Transferring the directory to another handset
Requirements:
◆ The sending and receiving handsets must both
be registered to the same base station.
◆ The other handset and the base station can
send and receive directory entries.
h ¢ u (select entry) ¢ MENU ¢ Send Entry / 
Send List ¢ OK ¢ ~ (enter the internal number of
the receiving handset)
¢ OK
Last number redial list
This list contains the ten last dialled numbers.
Dialling from the last number redial list
c (press briefly) ¢ u (select entry) ¢ c
Managing entries in the last number redial list
c (press briefly) ¢ u (select entry) ¢ MENU
You can select the following settings:
Setting the alarm clock
Activating/deactivating the alarm clock
¢
MENU
Alarm Clock
OK (‰ = on)
¢
¢ OK ¢ Activation
When activated:
¢ Set the wake-up time ¢ OK
When the alarm clock rings, press any key to switch
it off for 24 hours. If the alarm clock is set, the
wake-up icon l will appear on the screen and the
wake-up time will be displayed instead of the date.
Setting the wake-up time
MENU
¢ Alarm Clock ¢ OK ¢ Wake-up time ¢ OK
Enter the wake-up time in hours and minutes, then
press OK.
Phone settings
For details on how to set audio settings, see Menu
page 10.
tree
¢
Changing the display language
¢
¢ ¢
¢ ¢
¢
MENU
Settings
OK
Handset
OK
Language
OK
select the language
¢
The current language is indicated by ‰.
¢ OK 
If you accidentally choose a language you do not
understand:
Copy to Dir.
Edit or add to the number.
Then dial or select other
functions from the MENU.
Copy an entry to the directory.
Delete Entry
Delete selected entry.
Resetting the handset
Delete List
Delete all entries.
Use Number
Opening lists with the message key
An advisory tone sounds and the message key
flashes as soon as a new entry appears in the list.
A message appears in the display.
If you press the message key f, you will see all
lists that contain new messages. If only one list
contains new messages, this will be opened automatically.
MENU
¢ 4 2 1 (press the keys one after the other)
Select the correct language with u and press OK.
You can reset individual settings and changes that
you have made. Entries in the directory, the calls
list and the handset's registration to the base station will be retained.
¢
MENU
Settings
Reset Handset
¢
¢ OK ¢ Handset ¢ OK
¢ OK
Cancel the reset with a.
AS28H Handset / Israel EN / A31008-M2051-B501-1-VU19 / main.fm / 19.02.2009
9
Appendix
Questions and answers
Entering letters/characters
If you have any queries about the use of your telephone, visit our website at 
www.gigaset.com/customercare 
for assistance 24/7. The table below contains a list
of common problems and possible solutions.
Press the relevant key the number of times indicated. 
Briefly press the hash key # to switch from
"Abc" to "123" mode, from "123" to "abc" mode and
from "abc" to "Abc" mode.
Standard characters
1
2
I
4
5
L
M
N
O
Q
P
#
1x 2x
1)
1
a b
d e
g h
j k
m n
p q
t u
w x
. ,
* /
Abc
-->
123
123
-->
abc
3x
£
c
f
i
l
o
r
v
y
?
(
#
4x
$
2
3
4
5
6
s
8
z
!
)
@
5x
¥
ä
ë
ï
6x 7x 8x 9x 10x 11x 12x 13x 14x
¤
á à â ã ç
é è ê
í ì î
ö ñ
7 ß
ü ú
9 ÿ
0 +
< =
\ &
ó
ò
ô
ù û
ý æ ø
- : ¿
> %
§
õ
å
¡
"
’
;
_
Specifications
Recommended batteries
Technology:
Nickel-metal-hydride (NiMH)
Size:
AAA (Micro, HR03)
Voltage:
1.2 V
Capacity:
400–800 mAh
We recommend the following types of battery:
◆ GP 550/700 mAh
◆ Yuasa Phone 700/800 mAh
◆ Peacebay 550/650 mAh
(Valid at the time of going to press)
The handset is supplied with recommended batteries.
General specifications
Environmental conditions
in operation
Cause
Nothing
appears in
the display.
The handset is
not switched on.


Solution
Press the end call
key a for approx.
5 seconds or place
the handset in the
base station.
Charge or replace
The batteries
the batteries.
are flat.
No wireless
The handset is
Move the handset
connection
outside the range closer to the base stato the base
of the base station.
station,
tion.
Base flashes The handset is
Register the handset
page 5.
in the display. not registered.
The base station Check the mains plug
is not turned on. on the base station.
¢
1) Space
DECT standard
GAP standard
Range
Problem
is supported
is supported
up to 300 m outdoors 
up to 50 m indoors
+5°C to +45°C, 20% to
75% relative humidity
Service (Customer Care)
We offer you support that is fast and tailored to
your specific needs!
Our Online Support on the Internet can be reached
any time from anywhere.
www.gigaset.com/customercare 
It provides you with 24/7 support for all our products. It also provides a list of FAQs and answers plus
user guides and current software updates (if available for the product) for you to download.
You will also find frequently asked questions and
answers in the appendix of this user guide.
For fast and dependable assistance with any
repairs or guarantee/warranty claims, contact our
Service Centre.
NewPan Tel. 1 700 700 727
Please have your proof of purchase ready when
calling.
Replacement or repair services are not offered in
countries where our product is not sold by authorised dealers.
Authorisation
This device is intended for connection to analogue
networks outside the EEA (with the exception of
Switzerland) depending on national type approval.
Country-specific requirements have been taken
into consideration.
We, Gigaset Communications GmbH, declare that
this device meets the essential requirements and
other relevant regulations laid down in Directive
1999/5/EC.
AS28H Handset / Israel EN / A31008-M2051-B501-1-VU19 / main.fm / 19.02.2009
10
Menu tree
Your phone has an extensive range of features.
These are offered in the form of menus.
To select a function while the phone is in idle status, press MENU (open menu), use the t and v
keys to scroll to the function you require and press
OK to confirm.
To return to idle status: press and hold
the a key.
1
As an alternative to selecting functions using the
t and v keys, you can also enter the digit combi-
nation that is in front of the function in the menu
tree.
For setting the time and date, for example:
MENU
Alarm Clock
1-1 Activation
Activating/deactivating the alarm clock
1-2 Wake-up time
Input format: HHMM
2
¢ 4 1 ¢ OK
Audio Settings
2-1 Handset Volume
2-2 Ringer Volume
2-3 Ringer Melody
2-1-1 Earpiece
Can be set to one of 3 levels
2-1-2 Speaker
Can be set to one of 5 levels
5 levels + "crescendo" available
2-3-1 External Calls
10 ringer melodies available for external calls
2-3-2 Internal Calls
10 ringer melodies available for internal calls
2-3-3 Alarm Clock
10 ringer melodies available for alarm clock
2-4 Advis. Tones
Activate/deactivate
2-5 Battery Low
2-5-1 Off
2-5-2 On
Warning tone to indicate battery is almost flat:
2-5-3 During Call
3
Voice Mail (Menu dependent on base station)
4
Settings
4-1 Date/Time
4-2 Handset
4-3 Base
never
always
only during a call
Enter date (DDMMYY format), then time (HHMM format)
¢ page 8
4-2-1 Language
Set the display language
4-2-2 Auto Answer
Automatically activate/deactivate auto answer
4-2-3 Register HS
Manually register the handset
4-2-4 Reset Handset
Reset the handset
(Menu dependent on base station)
¢ page 8
¢ page 5
¢ page 7