Gigaset C28H User manual

Gigaset C28H / CAN useng / A31008-N3100-B101-2-19 / Cover_front.fm / 22.2.11

Gigaset C28H / CAN useng / A31008-M1963-R401-2-5819 / Cover_front.fm / 22.2.11

1
The handset at a glance
Gigaset C28H / CAN useng / A31008-M1963-R401-2-5819 / kombi_overview.fm / 22.2.11
Version 4, 16.09.2005
The handset at a glance 1Display in idle status
2Charge status of the batteries (page 2)
3Display keys
4Control key
tAccess to base station’s Calls list.
sAccess to base station’s directory.
5Line keys
Answer an incoming call for Line 1/Line 2.
Make a call from Line 1/Line 2.
Start a second call from Line 2 while telephon-
ing from Line 1 and vice versa.
6End Call key, On/Off key
End call, cancel function, return to idle status,
activate/deactivate handset (press and hold in
idle status).
72.5-mm socket (mono) for headset
8Pound (#) key
Enter # symbol.
Keypad lock on/off (press and hold in idle sta-
tus).
Switch between uppercase and lowercase let-
ters for text entry.
9Redial/Pause key
Open redial list (in idle status) or insert a dial-
ing pause (when editing a number).
10 Microphone
11 Intercom/Hold/Conference key
Set up an internal call.
Switch between an external call and internal
party (handset/base station), or transfer a call
during an external call.
Set up a conference call between an external
line and an internal party (handset/base sta-
tion). Press and hold the key in hold-intercom
mode.
12 Star (*) key
Ring tone on/off (press and hold).
Switch temporarily to tone dialing (DTMF).
Switch between AM and PM during time set-
ting.
Switch number format in the Calls list.
13 Handsfree key
Answer or place a call in speaker mode.
Switch between speaker on and speaker off (in
off-the-hook mode).
14 Talk/Flash key
Answer or start a call.
Key flashes: incoming call.
Add a flash (in the directory).
Send FLASH (when off the hook).
15 Reception indicator (page 2)
Note:
Pictures in this user manual may differ from the
actual product.
Äe
INT 1
01/31 9:45
1
2
3
4
5
6
7
8
911
13
14
15
10
12
§§§§Menu§§§§

2
The handset at a glance
Gigaset C28H / CAN useng / A31008-M1963-R401-2-5819 / kombi_overview.fm / 22.2.11
Version 4, 16.09.2005
Overview of handset’s display icons
ÄReception indicator
Handset is linked with the base station.
Flashes: the handset is out of range or not
registered
ÓCalls list icon
Entries stored in the base station‘s Calls list.
Flashes: New missed calls in the Calls list
eCharge status of the batteries
= e U (empty to full)
=flashes: batteries almost empty
= U flashes: batteries charging
îVoice mail envelope
At least one new message on voice
mailbox
Ê
Ë
Is shown when the respective line is off the
hook, in external talk mode, in use mode or
on hold.
Is displayed in the Calls lists to show the
line on which the call came in.
ÇHandsfree icon
Handsfree mode activated
ÅRinger off icon
Ring tone volume of handset is turned off
ÆOff-Hook
Outgoing call initiated or during a call.
Flashes: indicates incoming call, L1CALL /
L2CALL in the display header shows the line
of the incoming call
Õ
Õ
Õ
Answering machine icon
Answering machine at the base station is
switched on for Line 1 / Line 2 / Line 1 and
Line 2.
Flashes: answering machine is recording or
is being operated by another handset or
there are new messages on the answering
machine
Ê
Ë
Ê
Ë

3
Contents
Gigaset C28H / CAN useng / A31008-M1963-R401-2-5819 / V500_kombi_IVZ.fm / 9.2.11
Version 4, 16.09.2005
Contents
The handset at a glance . . . . . . . . . . . . 1
Overview of handset’s display icons . . . . . 2
Safety precautions . . . . . . . . . . . . . . . . 4
Notes on the operating instructions 5
Symbols used . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Example: menu input . . . . . . . . . . . . . . . . . . . 5
Gigaset C28H – First Steps . . . . . . . . . . 6
Package contents . . . . . . . . . . . . . . . . . . . . . . . 6
Setting up the handset for use . . . . . . . . . . 6
Registering and de-registering handsets . 7
Changing the base station . . . . . . . . . . . . . . 7
Making calls . . . . . . . . . . . . . . . . . . . . . . . 9
Making an external call . . . . . . . . . . . . . . . . . . 9
Ending a call . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Answering a call . . . . . . . . . . . . . . . . . . . . . . . . 9
Last number redial list . . . . . . . . . . . . . . . . . . 10
Operating the handset . . . . . . . . . . . 10
Control key . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Display keys . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Returning to idle status . . . . . . . . . . . . . . . . 11
Menu guidance . . . . . . . . . . . . . . . . . . . . . . . . 11
Correcting incorrect entries . . . . . . . . . . . . 12
Using several handsets . . . . . . . . . . . 12
Making internal calls . . . . . . . . . . . . . . . . . . . 12
Handset settings . . . . . . . . . . . . . . . . . 12
Changing the name of a handset . . . . . . . 12
Changing the display language . . . . . . . . 12
Setting the display contrast . . . . . . . . . . . . 12
Activating/deactivating auto answer . . . 13
Adjusting the loudspeaker and
earpiece volume . . . . . . . . . . . . . . . . . . . . . . . 13
Changing ring tones . . . . . . . . . . . . . . . . . . . 13
Activating/deactivating the
key-touch tone . . . . . . . . . . . . . . . . . . . . . . . . 13
Appendix . . . . . . . . . . . . . . . . . . . . . . . . 14
Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Contact with liquid . . . . . . . . . . . . . . . . . . . . 14
Questions and answers . . . . . . . . . . . . . . . . . 14
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Industry Canada Certification . . . . . . . . . . . 16
FCC / ACTA Information . . . . . . . . . . . 16
Safety precautions . . . . . . . . . . . . . . . . . . . . . 17
End-user limited warranty . . . . . . . . . . . . . . 19
Menu of the handset . . . . . . . . . . . . . 22
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

4
Safety precautions
Gigaset C28H / CAN useng / A31008-M1963-R401-2-5819 / security.fm / 22.2.11
Version 4, 16.09.2005
Safety precautions*
Only use the power supply unit supplied as indicated on the bottom of the device.
Only insert approved rechargeable batteries of the same type.
Never use ordinary (non-rechargeable) batteries, as they may pose a health hazard
or cause injury.
Do not charge the handset in the charging unit or base station while the headset is
connected.
Make sure the rechargeable battery is inserted in the correct direction.
Use the battery specified in these operating instructions.
The phone may affect medical equipment, so always turn your phone off before
entering a hospital or doctor's office.
Notice to Hearing Aid Wearers:
This phone system is compatible with inductively coupled hearing aids.
Do not operate the phone in places where there is a risk of explosion
(such as paint workshops).
Do not install the base station in the bathroom. The handset and base station are not
splash-proof (see page 14).
Drivers must not use the phone while driving.
The phone must be turned off at all times in aircraft. Make sure the phone cannot be
switched on accidentally.
If you give your telephone to someone else, you should also provide the operating
instructions.
Dispose of batteries and the phone carefully. Do not pollute the environment.
Emergency numbers cannot be dialed if the keypad lock is activated!
*alsoseepage17
!
$
‹
Œ
ƒ

5
Notes on the operating instructions
Gigaset C28H / CAN useng / A31008-M1963-R401-2-5819 / notes-on-instructions.fm / 9.2.11
Version 4, 16.09.2005
Notes on the operating
instructions
This section explains the meaning of certain
symbols and typographical conventions
used in this user guide.
Symbols used
On / Off (example)
Select one of the two menu
functions specified.
~Enter digits or letters.
§Back§ The display keys' current func-
tions are shown in reverse and
are highlighted in the lower dis-
play line. Press the display key
below to launch the function.
qPress the top or the bottom of
the control key: scroll up or
down.
c/ Q/ *etc.
Press the corresponding key of
the handset.
Example: menu input
In the user guide, the steps you need to per-
form are shown in abbreviated form. This is
illustrated here using "Changing the display
language" as an example.
What you need to do is explained in the box.
§Menu§ ¢Settings ¢Handset
¢Language ¢English / Español /
Français
¤With the handset in idle status, press the
right display key to open the main menu.
¤Select Settings using the control key q
– press the control key at the top or bot-
tom.
¤Press the §OK§ display key to confirm the
function Settings.
The Settings submenu is displayed.
¤Press the bottom of the control key s
repeatedly until Handset is selected.
¤Press the §OK§ display key to confirm the
function.
The Handset submenu is displayed.
¤Press the bottom of the control key s
repeatedly until Language is selected.
¤Press the §OK§ display key to confirm the
function.
The Language submenu is displayed.
¤Select the language you want using the
control key q– press the control key at
the top or bottom.
¤Press the §OK§ display key to confirm the
selected language.
The language is now changed for all text.

6
Gigaset C28H – First Steps
Gigaset C28H / CAN useng / A31008-M1963-R401-2-5819 / starting.fm / 22.2.11
Version 4, 16.09.2005
Gigaset C28H –
First Steps
Package contents
uOne Gigaset C28H handset with battery
cover
uTwo batteries
uOne belt clip
uOne Gigaset charging cradle
uOne AC adapter for the charging cradle
uOne User Guide
Headset socket
Which headsets are compatible?
Please call the Service number
1-866-247-8758 or contact us at
www.gigaset.com/service for information.
Connecting the charging cradle
¤First connect the power adapter to the
charging cradle (1) and then the AC
power adapter to the 110V AC power
socket (2) as shown below.
Setting up the handset for
use
Inserting the batteries
¤Open the battery cover.
¤Insert the batteries according to the cor-
rect polarity (see diagram).
The polarity is indicated in/on the battery
compartment.
¤Close the cover, and press the top so that
it clicks into place.
Caution:
Do not charge the handset in the charging unit or
base station while the headset is connected.
1
2
Underside of the charging cradle
Caution:
Use only rechargeable Nickel-metal hydride
(NiMH) UL-approved AAA batteries. Never use a
conventional (non-rechargeable) battery or
other battery types as this could result in signifi-
cant health risks and personal injury. For exam-
ple, the batteries could explode. The phone
could also malfunction or be damaged as a result
of using batteries that are not of the recom-
mended type.
Note:
If attached, remove the belt clip before opening
the battery cover.

7
Gigaset C28H – First Steps
Gigaset C28H / CAN useng / A31008-M1963-R401-2-5819 / starting.fm / 22.2.11
Version 4, 16.09.2005
Attaching the belt clip
There are notches on the sides of the hand-
set for attaching the belt clip, nearly at the
same height as the handset earpiece.
¤Press the belt clip onto the back of the
handset so that the protrusions on the
belt clip engage the notches.
Placing the handset in the
charging cradle
¤Place the handset in the charging cradle
with the handset's display facing
outwards.
Registering and
de-registering handsets
Before you can use additional handsets, you
must first register them to the base station.
A Gigaset C28H handset can be registered
with up to four base stations.
Registering the Gigaset C28H
handset
On the handset
§Menu§ ¢Settings ¢Registration
¢Register HS
qSelect the base you want to reg-
ister your handset with and
press §OK§. Bases that have been
registered will be marked by ½.
~ Enter the system PIN of the base
station and press §OK§.
The handset will be registered.
On the base station
Within 60 secs. press and hold the registra-
tion/page key (approx. 5 secs.) on the base
station.
De-registering handsets
You can de-register any registered handset
from your Gigaset C285.
§Menu§ ¢Settings ¢Registration
¢Unregister HS
~ Enter the base station’s system
PIN and press §OK§.
qSelect the handset you want to
de-register and press §OK§.
§OK§ Press the display key to confirm
deletion.
Changing the base station
If your handset is registered to more than
one base station, you can set it to a particular
base station or to the base station that has
the best reception (Best Base).
§Menu§ ¢Settings ¢Registration
¢Select Base
qSelect one of the registered
base stations or Best Base and
press §OK§.
Charging the batteries for the first
time
¤To charge the batteries, leave the handset
in the charging cradle continuously for
ten hours.
The alternately flashing battery icons =U
on the upper right side of the display screen
indicate that the batteries are being
charged.
For questions and troubleshooting,
seepage14.
Note:
– If the handset has turned itself off because its
batteries are empty, and you then place the
handset into the base station, it will turn on
automatically.
– Only place the handset into the base station
or charging cradle specifically intended for it.
– During handset operation, the battery icon
eindicates the charge status of the batter-
ies (page 1).
– The batteries may feel warm when they are
charging. This is not dangerous.

8
Gigaset C28H – First Steps
Gigaset C28H / CAN useng / A31008-M1963-R401-2-5819 / starting.fm / 22.2.11
Version 4, 16.09.2005
Setting the date and time
You should set the date and time, for exam-
ple, to ensure the correct time of incoming
calls is recorded.
To change the time and date, open the input
field using:
§Menu§ ¢s¢Settings ¢Date/Time
¢Set Date/Time
~Enter the time and date using
10 digits, for example, QM
1 5 Q 1 1 5
Q N for January 15, 2008,
07:15 AM. If the 12-hour time
format is set, use the *key to
switch between am and pm.
To correct an incorrect entry,
overwrite the character by typ-
ing the correct one.
§OK§ Press the display key to save
changes.
You can change the date and time format:
§Menu§ ¢s¢Settings ¢Date/Time
¢Set Format
¤Choose between day/month and month/
day date formats:
s¢Date Format ¢DD/MM or MM/DD
¤Choose between 12- and 24-hour time
formats:
s¢Time Format ¢12 Hours / 24 Hours
Selecting the line settings
For each handset and the base station, you
can set how your telephone will use the two
telephone lines:
Auto All incoming calls will ring. For
outgoing calls, your phone will
use whichever line is currently
free.
Line 1 / Line 2
Only incoming calls on the
respective line can be answered
with the ckey. For outgoing
calls, your phone will always use
the selected line.
If you have selected Line 1 or Line 2, you can
still answer or make a call on the free line by
using the Cor hkeys.
Selecting line settings for a handset
§Menu§ ¢s¢Settings ¢Handset
¢Line Setting
Auto / Line 1 / Line 2
Select entry and press §OK§.
Display in idle status
Once the phone is registered to a base sta-
tion (page 7)and the time set, the idle dis-
play looks as shown here (example).
Your phone is now ready to use.
This user manual describes the functions of
your Gigaset C28H handset. For all base sta-
tion related functions, please consult the
Gigaset C285 user manual.
Note:
Date and time settings apply to base station and
all registered handsets.
Date and time format settings apply only to your
own handset. You must set date and time format
at each device separately.
Äe
INT 1
01/31 9:45AM
§§§§Menu§§§§

9
Making calls
Gigaset C28H / CAN useng / A31008-M1963-R401-2-5819 / telefony.fm / 22.2.11
Version 4, 16.09.2005
Making calls
Making an external call
External calls are calls using the outside tele-
phone network.
~c Enter the number and press the
Talk key c or Handsfree key
d.
Or:
c~ Briefly press the Talk key cor
Handsfree key d, and then
enter the number.
To cancel the dialing operation, press the
End Call key a.
Depending on the line settings of the used
handset, the telephone selects the line. You
can use the line keys Cor hinstead of
the cor dkey to select the line for this
call.
You are shown the duration of the call while
the call is in progress.
Ending a call
aPress the End Call key.
Answering a call
The handset indicates an incoming call in
three ways: by ringing, by a display on the
screen, and by the flashing Talk key c.
The base station indicates an incoming call
in three ways: by ringing, by a display on the
screen, and by the flashing line key Cor
h.
You can accept the call by:
¤Pressing the Talk key c.
¤Pressing the line key Cor h.
¤Pressing the Handsfree key d.
Depending on the line settings of the used
handset, the telephone reacts differently:
uIf you have selected Auto, you can use
the Talk key c or Handsfree key d
for calls on both lines.
uIf you have selected Line 1 or Line 2, you
can only answer calls on the selected line
with the Talk key c or Handsfree key
d. For calls on the other line, you must
use the Ckey or hkey to answer the
call.
If the handset is in the base station or
charger and the Auto Answer function is
activated (page 13), the call will be answered
automatically when you lift the handset
from the base station or charger. Lifting the
handset from the base station or charger in
this case has the same effect as pressing the
Talk key c.
You can press the §Quiet§ display key to mute
the ring tone of your handset without
answering the call. The other registered
handsets and the base station keep ringing
.Note:
If two calls are ringing simultaneously on the two
lines, your telephone display will switch from one
line to the other every 3 seconds.
¥Use the Ckey or hkey to answer the
call.

10
Operating the handset
Gigaset C28H / CAN useng / A31008-M1963-R401-2-5819 / telefony.fm / 22.2.11
Version 4, 16.09.2005
Last number redial list
The Last Number Redial list contains the ten
numbers last dialed with the handset (max.
32 digits). If a number has been dialed sev-
eral times, only the last try is shown in the
list.
Last number redial
kPress the key.
qSelect the entry.
c/ dPress the Talk key or the Hands-
free key.
The number is dialed.
You can press the Cor hkey instead, if
you want to specify which line to use.
When displaying a name, you can have the
respective phone number displayed:
§Menu§ ¢View
Managing entries in the Last
Number Redial list
kPress the key.
qSelect the entry.
§Menu§ Open menu.
The following functions can be selected with
q:
uView
In the list long numbers are shown abbre-
viated. Select View to show the whole
number.
uCopy To Dir.
Copy the displayed entry to the directory
of the base station.
¤Complete the entry as described in
the user guide of base station.
uDelete
Delete the displayed entry from the list.
uDelete List
¤Confirm question Delete? by pressing
§OK§.
All entries in the last number redial list
will be deleted.
Operating the handset
Activating/deactivating the
handset
aPress and hold the End Call key
to turn the handset on/off.
Activating/deactivating the
keypad lock of the handset
#Press and hold the pound key.
Keypad Locked appears in the display when
the keypad lock is activated.
The keypad lock is deactivated automati-
cally if someone calls you. It is re-activated
when the call is finished.
Control key
1 Control key
In the description below, the top or bottom
of the Control key (up, down), which you
must press depending on the operating
situation, is marked in black, for example, t
for "press up on the Control key".
The Control key has different functions:
When the handset is in idle status
sOpen the base station’s direc-
tory
tOpen the base station’s Calls list
In input fields
You can use the Control key to move the cur-
sor backwards tor sforwards.
1

11
Operating the handset
Gigaset C28H / CAN useng / A31008-M1963-R401-2-5819 / telefony.fm / 22.2.11
Version 4, 16.09.2005
When the handset is off the hook or
when the answering machine is
playing
t/ sIncrease/decrease volume
In the main menu, lists and submenus
t/ sScroll up/down line by line.
At the bottom/top of a menu or a list:
A feedback tone signals that the menu/list
has wrapped around automatically (the first/
last entry is selected in the display).
Display keys
The function of the display keys changes
depending on the particular operating situ-
ation. Example:
1 The display keys' current functions are shown
on the bottom display line.
2Displaykeys
The most important display symbols are:
§§§§§Menu§§§§ Open the main menu (in idle
mode) or the context-depen-
dent menu.
§§§§§Back§§§§ Go back one menu level.
§§§§§§§OK§§§§§§§ Confirm your choice or save
edited characters.
§§§§Clear§§§§§ Clear key: deletes one character
at a time from right to left (press
briefly), or deletes all characters
(hold).
Returning to idle status
You can return to idle status from anywhere
in the menu as follows:
¤Press the End Call key a.
Or:
¤Do not press any key: after 2 minutes, the
display will automatically return to idle
status.
Changes that you have not confirmed or
saved by pressing §OK§ will not be saved.
An example of the display in idle status is
shown on page 8.
Menu guidance
Your phone's functions are accessed using a
menu that has a number of levels.
Main menu (first menu level)
¤Press the display key §Menu§ with the hand-
set in idle status to open the main menu.
The main menu functions are shown on the
screen in a list.
To access a function, open the correspond-
ing submenu (next menu level):
¤Navigate to the function using the con-
trol key q.
¤Press the display key §OK§.
Submenus
The functions in the submenus are displayed
as lists.
To access a function:
¤Scroll to the function with the control key
qand press §OK§.
Pressing the §Back§ display key returns you to
the previous menu level. acancels the
operation.
§§§§§Back§§§§§ U§§§§Menu§§§§§ 1
2

12
Using several handsets
Gigaset C28H / CAN useng / A31008-M1963-R401-2-5819 / telefony.fm / 22.2.11
Version 4, 16.09.2005
Correcting incorrect entries
You can correct incorrect characters in the
text by navigating to the incorrect entry
using the control key. You can then:
uPress §§§§Clear§§§§§ to delete the character to
the left of the cursor.
uInsert characters to the left of the cursor.
uOverwrite the (flashing) character when
entering the time and date, etc.
Using several handsets
Making internal calls
Internal calls to other handsets registered
with the same base station are free.
jInitiate internal call.
qSelect the handset you want to
call and press §OK§.
Ending a call
aPress the End Call key.
Handset settings
Your handset is preconfigured, but you can
change these settings to suit your individual
needs.
Changing the name of a
handset
The names "INT 1", "INT 2", etc., are assigned
automatically during registration. You can
change these names. The number of the
handset, however, never changes. The
changed name is only displayed on this
handset.
§Menu§ ¢Settings ¢Handset
¢Handset Name
~Enter the name and press §OK§.
The name must not exceed 12
characters.
Changing the display
language
You can view the display texts in different
languages.
§Menu§ ¢Settings ¢Handset
¢Language
English / Español / Français
qSelect a language and press §OK§.
Setting the display contrast
You have a choice of five different contrast
levels.
§Menu§ ¢Settings ¢Handset
¢Display Contr.
Level 1 / ... / Level 5
Select your preferred level and
press §OK§.
Note:
If only two handsets are registered to the base,
the internal call will be established immediately
after pressing jkey.

13
Handset settings
Gigaset C28H / CAN useng / A31008-M1963-R401-2-5819 / telefony.fm / 22.2.11
Version 4, 16.09.2005
Activating/deactivating
auto answer
This function is active by default, so that
when you get a call, you can simply lift the
handset out of the charging cradle or the
base station without having to press the Talk
key c.
§Menu§ ¢Settings ¢Handset
¢Auto Answer ¢On / Off
Default setting is On.
Adjusting the loudspeaker
and earpiece volume
You can set the loudspeaker volume and the
earpiece volume to five different levels. You
can only make these adjustments during a
call.
The handsfree volume can only be adjusted
when this function is in use.
You are conducting a call.
qIncrease or decrease the
volume.
Changing ring tones
You can set different ring tones for Line1 and
Line2.
Volume
You can choose between five volumes (0–5;
for example, volume 4 = ˆ).
§Menu§ ¢Settings ¢Audio Settings
¢HS Ring Volume
Line 1 / Line 2
Select the line for which you
want to set the volume and
press §OK§.
qSelect the volume and press §OK§.
Ring tones
You can choose between 15 different melo-
dies.
§Menu§ ¢Settings ¢Audio Settings
¢HS Ring Tones ¢Line 1 / Line 2
qSelect a melody and press §OK§.
Activating/deactivating the ring
tone
You can deactivate the ring tone on your
handset before you answer a call or when
the handset is in idle status; the ring tone
can be deactivated permanently or just for
the current call.
Deactivating and reactivating the ring
tone permanently
*Press and hold the star key.
Line 1 / Line 2
Select the line for which you
want to deactivate or reactivate
the ring tone and press §OK§.
On / Off Select if you want to deactivate
or reactivate the ring tone and
press §OK§.
If the ring tone is deactivated, the Åicon
appears in the display for the respective line.
Deactivating the ring tone for the
current incoming call
§Quiet§ Press the display key.
Ajusting the ring tone volume during
an incoming call
¤Press the sor tkey until the ring tone
volume reaches the desired level.
You can press the s key until you no longer
hear the ring tone.
Activating/deactivating the
key-touch tone
Each key press is acknowledged by a beep.
You can deactivate this function:
§Menu§ ¢Settings ¢Audio Settings
¢Key Touch Tone ¢On / Off

14
Appendix
Gigaset C28H / CAN useng / A31008-M1963-R401-2-5819 / appendix.fm / 22.2.11
Version 4, 16.09.2005
Appendix
Care
Wipe the base station and handset with a
damp cloth (do not use solvents) or an anti-
static cloth.
Never use a dry cloth. This can cause static.
Contact with liquid
If the handset has come into contact with
liquid:
1. Immediately switch the handset off
and remove the batteries.
2. Allow the liquid to drain from the hand-
set.
3. 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 mi-
crowave oven, convection oven, or simi-
lar place).
4. Do not switch on the handset again un-
til it has completely dried.
When it has fully dried, you should be able to
use it again normally.
Questions and answers
If you have any questions about the use of
your telephone, you can contact us at any
time atwww.gigaset.com/service
The troubleshooting section (page 14) con-
tains a list of common problems and possi-
ble solutions.
Troubleshooting
The display is blank.
1. The handset is not switched on.
¥Press aand hold the End Call key.
2. The batteries are empty.
¥Charge or replace the batteries (page 6).
!
The handset does not respond to a key press.
The keypad lock is activated.
¥Press and hold the pound key #(page 1).
Base Search and Äis flashing on the display
screen.
1. The handset is outside the range of the base
station.
¥Reduce the distance between handset/
base station.
2. The handset has been de-registered. Please
Register is flashing on the display screen.
¥Register the handset (page 12).
3. The base station is not switched on.
¥Check the base station power cord
(page 6).
Handset does not ring.
The ring tone is switched off.
¥Activate the ring tone (page 13).
The other party cannot hear you.
You have pressed the display key §Mute§ or the
j key. The handset is on hold.
¥Press the left display key to switch on the
microphone again.

15
Appendix
Gigaset C28H / CAN useng / A31008-M1963-R401-2-5819 / appendix.fm / 22.2.11
Version 4, 16.09.2005
Specifications
Recommended batteries
Technology: Nickel-metal hydride
(NiMH)
Type: AAA (Micro, HR03)
Tension: 1.2 V
Capacity: 550 mAh
The handset is supplied with the authorized
AAA batteries.
Handset operating times/charging
times
The operating and charge times apply only
when using the recommended batteries.
General specifications
Standby time Approx. 280 hours
(11.6 days)
Talk time Approx. 10 hours
Charge time Approx. 10 hours
DECT 6.0 is supported
No. of channels 30 duplex channels
Radio frequency
range 1920–1930 MHz
Duplex method Time multiplex, 10ms frame
length
Channel grid 1728 kHz
Bitrate 1152 kbit/s
Modulation GFSK
Language code 32 kbit/s
Transmission
power
10 mW, average power per
channel
Range Up to 984 feet outdoors, up
to 165 feet indoors
Charging cradle
power supply 110 V ~/60 Hz
Environmental
operating condi-
tions
+41°F to +113°F;
20% to 75% relative humid-
ity
Dialing mode DTMF (tone dialing)/DP
(pulse dialing)

16
FCC / ACTA Information
Gigaset C28H / CAN useng / A31008-M1963-R401-2-5819 / appendix.fm / 22.2.11
Version 4, 16.09.2005
Industry Canada Certification
Operation is subject to the following two condi-
tions (1) this device may not cause interference,
and (2) this device must accept any interference,
including interference that may cause undesired
operation of the device.
NOTICE: The Industry Canada label identifies certi-
fied equipment. This certification means that the
equipment meets certain telecommunications
network, protective, operational and safety
requirements as prescribed in the appropriate Ter-
minal Equipment Technical Requirements docu-
ment(s). The Department does not guarantee the
equipment will operate to the user’s satisfaction.
Before installing this equipment, users should
ensure that it is permissible to be connected to
the facilities of the local telecommunications
company. The equipment must also be installed
using an acceptable method of connection. The
customer should be aware that compliance with
the above conditions may not prevent
degradation of service in some situations.
Repairs to certified equipment should be coordi-
nated by a representative designated by the sup-
plier. Any repairs or alterations made by the user
to this equipment, or equipment malfunctions,
may give the telecommunications company cause
to request the user to disconnect the equipment.
Users should ensure for their own protection that
the electrical ground connections of the power
utility, telephone lines and internal metallic water
pipe system, if present, are connected together.
This precaution may be particularly important in
rural areas
NOTE: Users should not attempt to make such
connections themselves, but should contact the
appropriate electric inspection authority,
or electrician, as appropriate.
This product meets the applicable Industry
Canada technical specifications.
The Ringer Equivalence Number is an indication of
the maximum number of devices allowed to be
connected to a telephone interface. The termina-
tion of an interface may consist of any combina-
tion of devices subject only to the requirement
that the sum of the RENs of all devices does not
exceed five.
This Class B digital apparatus complies with Cana-
dian ICES-003.
Cet appareil numérique de la classe B est con-
forme à la norme NMB-003 du Canada.
FCC / ACTA Information
Warning: Changes or modifications to this unit
not expressly approved by Gigaset Communica-
tions USA LLC could void the FCC authority to
operate the equipment. This includes the addition
of any external antenna device.
This equipment complies with Part 68 of the FCC
rules and the requirements adopted by the ACTA.
On the bottom of the base station is a label that
contains, among other information, a product
identifier in the format US:AAAEQ##TXXXX. If
requested, this number must be provided to the
telephone company.
A plug and jack used to connect this equipment to
the premises wiring and telephone network must
comply with the applicable FCC Part 68 rules and
requirements adopted by the ACTA. A compliant
telephone cord and modular plug is provided
with this product. It is designed to be connected
to a compatible modular jack that is also compli-
ant. See installation instructions for details.
The REN is used to determine the number of
devices that may be connected to a telephone
line. Excessive RENs on a telephone line may result
in the devices not ringing in response to an
incoming call. In most but not all areas, the sum of
RENs should not exceed five (5.0). To be certain of
the number of devices that may be connected to
a line, as determined by the total RENs, contact
the local telephone company. For products
approved after July 23, 2001, the REN for this prod-
uct is part of the product identifier that has the
format US:AAAEQ##TXXXX. The digits repre-
sented by ## are the REN without a decimal point
(e.g., 03 is a REN of 0.3). For earlier products, the
REN is separately shown on the label.
A copy of the supplier's Declaration of Conformity
(SDoC) is available at this Internet address:
www.gigaset.com/docs.
If this equipment causes harm to the telephone
network, the telephone company will notify you in
advance, that temporary discontinuance of serv-
ice may be required. But if advance notice isn’t
practical, the telephone company will notify the
customer as soon as possible. Also, you will be
advised of your right to file a complaint with the
FCC if you believe it is necessary.
The telephone company may make changes in its
facilities, equipment, operations or procedures
that could affect the operation of the equipment.
If this happens the telephone company will pro-
vide advance notice in order for you to make nec-
essary modifications to maintain uninterrupted
service. If you experience trouble with this tele-
phone system, disconnect it from the network

17
FCC / ACTA Information
Gigaset C28H / CAN useng / A31008-M1963-R401-2-5819 / appendix.fm / 22.2.11
Version 4, 16.09.2005
until the problem has been corrected or until you
are sure that the equipment is not malfunction-
ing.
If trouble is experienced with this equipment, for
repair or warranty information, please contact
Support at 1-866 247-8758. If the equipment is
causing harm to the telephone network, the tele-
phone company may request that you disconnect
the equipment until the problem is resolved. This
equipment is of a type that is not intended to be
repaired by the Customer (user).
This telephone system may not be used on coin
service provided by the telephone company. Con-
nection to party line service is subject to state tar-
iffs. Contact the state public utility commission,
public service commission or corporation com-
mission for information. Privacy of communica-
tions may not be ensured when using this phone.
If your home has specially wired alarm equipment
connected to the telephone line, ensure the
installation of this equipment does not disable
your alarm equipment. If you have questions
about what will disable alarm equipment, consult
your telephone company or a qualified installer.
This telephone system equipment has been
tested and found to comply with the limits for
Class B digital device, pursuant to Part 15 of the
FCC Rules. Operation is subject to the following
two conditions: (1) This device may not cause
harmful interference, and (2) This device must
accept any interference received, including inter-
ference that may cause undesired operation.
These limits are designed to provide reasonable
protection against harmful interference in a resi-
dential installation. Some cordless telephones
operate at frequencies that may cause interfer-
ence to nearby TV’s and VCR’s; to minimize or pre-
vent such interference, the system base should
not be placed near or on top of a TV or VCR; and, if
interference is experienced, moving the base far-
ther away from the TV or VCR will often reduce or
eliminate the interference.
However, there is no guarantee that interference
will not occur in a particular installation. If this tel-
ephone system does cause harmful interference
to radio or television reception, which can be
determined by turning the system off and on, the
user is encouraged to try to correct the interfer-
ence by one or more of the following measures:
1. Reorient or relocate the receiving antenna.
2. Increase the separation between the base sta-
tion and receiver.
3. Connect the base station into an outlet on a cir-
cuit different from that to which the receiver is
connected.
4. Consult the dealer or an experienced radio TV
technician for help.
Notice for Direct Inward Dialing
("DID")
ALLOWING THIS EQUIPMENT TO BE OPERATED IN
SUCH A MANNER AS TO NOT PROVIDE FOR
PROPER ANSWER SUPERVISION IS A VIOLATION
OF PART 68 OF THE FCC‘S RULES.
Notice to Hearing Aid Wearers:
This phone system is compatible with inductively
coupled hearing aids.
Power Outage:
In the event of a power outage, your cordless
telephone will not operate. The cordless tele-
phone requires electricity for operation. You
should have a telephone that does not require
electricity available for use during power outages.
Notice:
The installation of the base unit should allow
at least 8 inches between the base and persons to
be in compliance with FCC RF exposure guide-
lines.
For body worn operation, the portable part (hand-
set) has been tested and meets FCC RF exposure
guidelines. Use with an accessory that contains
metal parts may not ensure compliance with FCC
RF exposure guidelines.
Notice to telephone company service:
If you need service from your telephone company,
please provide them with the information
– Facility interface Code (FIC)
– Service Order Code (SOC)
– Universal Service Order Code (USOC)
as indicated on the label on the bottom side of the
base station.
Safety precautions
Before using your telephone equipment, basic
safety instructions should always be followed to
reduce the risk of fire, electric shock and injury to
persons.
1. Read and understand all instructions.
2. Follow all warnings and instructions marked on
the product.
3. Unplug this product from the wall telephone
jack and power outlet before cleaning. Do not use
liquid cleaners or aerosol cleaners. Use damp
cloth for cleaning.
4. Do not use this product near water, for example,
near a bathtub, wash bowl, kitchen sink, or laun-
dry tub, in a wet basement or near a swimming
pool.

18
FCC / ACTA Information
Gigaset C28H / CAN useng / A31008-M1963-R401-2-5819 / appendix.fm / 22.2.11
Version 4, 16.09.2005
5. Place this product securely on a stable surface.
Serious damage and/or injury may result if the
unit falls.
6. Slots or openings in the cabinet and the back
and bottom are provided for ventilation, to pro-
tect it from overheating. These openings must not
be blocked or covered. This product should never
be placed near or over a radiator or heat register,
or in a place where proper ventilation is not pro-
vided.
7. This product should be operated only from the
type of power source indicated on the marking
label. If you are not sure of the type of AC line
power to your home, consult your dealer or local
power company.
8. Do not place objects on the power cord. Install
the unit where no one can step or trip on the cord.
9. Do not overload wall outlets and extension
cords as this can result in the risk of fire or electric
shock.
10. Never push objects of any kind into this prod-
uct through cabinet slots as they may touch dan-
gerous voltage points or short out parts that could
result in the risk of fire or electric shock. Never spill
liquid of any kind on this product.
11. To reduce the risk of electric shock or burns, do
not disassemble this product. Take it to a qualified
service center when service is required. Opening
or removing covers may expose you to dangerous
voltages, dangerous electrical current or other
risks. Incorrect reassembly can cause electric
shock when the appliance is subsequently used.
Disconnect TNV circuit connector before remov-
ing cover.
12. Unplug the product from the wall outlet and
refer servicing to qualified service personnel
under the following conditions:
a.) When the power cord is damaged or frayed.
b.) If liquid has been spilled into the product.
c.) If the product has been exposed to rain or
water.
d.) If the product does not operate normally by fol-
low
ing the operating instructions. Adjust only
those controls
that are covered by the operating
instructions because improper adjustment of
other controls may result in damage and may
require extensive work by a qualified technician to
restore the product to normal operation.
e.) If the product has been dropped or physically
has been damaged.
f.) If the product exhibits a distinct change in per-
formance.
13. Avoid using a telephone (other than a cordless
type) during a thunderstorm. There may be a
remote risk of electrical shock from lightning.
Therefore we suggest a surge arrestor.
14. Do not use the telephone to report a gas leak
in the vicinity of the leak.
15. Emergency/911 numbers may not be dialed if
the keypad is locked.
16. Minimum No. 26 AWG telecommunication line
cord must be used with this phone.
BATTERY SAFETY PRECAUTIONS
To reduce the risk of fire, injury or electric shock,
and to properly dispose of batteries, please read
and understand the following instructions.
CONTAINS NICKEL METAL HYDRIDE BATTERY. BAT-
TERY MUST BE RECYCLED OR DISPOSED OF PROP-
ERLY. DO NOT DISPOSE OF IN MUNICIPAL WASTE.
1. Only use the batteries specified for use with this
product.
2. DO NOT USE NICKEL CADMIUM OR LITHIUM
BATTERIES, or mix batteries of different sizes or
from different manufacturers in this product. DO
NOT USE NONRECHARGEABLE BATTERIES.
3. Do not dispose of the batteries in a fire; the cells
may explode. Do not expose batteries to water.
Check with local codes for special disposal instruc-
tions.
4. Do not open or mutilate the batteries. Released
electrolyte is corrosive and may cause damage to
the eyes or skin. The electrolyte may be toxic if
swallowed.
5. Exercise care in handling the batteries in order
not to short the batteries with conducting materi-
als such as rings, bracelets, and keys. The batteries
or conducting material may overheat and cause
burns or fire.
6. Charge the batteries provided with, or identi-
fied for use with, this product only in accordance
with the instructions and limitations specified in
the user’s manual. Do not attempt to charge the
batteries with any means other than that specified
in the users manual.
7. Periodically clean the charge contacts on both
the charger and handset.