2007 MERCEDES-BENZ C280 Phone

196 Controls in detail
Audio system
Autostore – automatic station memory
The Autostore memory function provides
an additional memory level. The station
memory for manually stored stations is not
overwritten.

Calling up Autostore memory level and
storing stations
Press AS soft key briefly.
The radio switches to the Autostore
memory level.
AS and SEARCH
appear in the display and the radio
finds the ten stations with the
strongest signals. These stations
are stored on the station
buttons1 to R in order of
signal strength.

Calling up stations
Press desired station button1
to R.

Leaving the Autostore memory level
Press FM or AMsoft key briefly.
Interrupting radio mode
The radio mode is interrupted by an
incoming call on the telephone*
(
page 212).

Mute on
Press U button.
The radio mode is interrupted and
MUTED appears in the display.

Mute off
Press U button.
The radio mode is again active.Weather band
Press WB soft key.
The weather band station last received
is tuned in.
Selecting a weather band station
directly
Select desired weather band station
with buttons 1 to 7.
If a station cannot be tuned in, a search
is automatically started.

198 Controls in detail
Audio system
Program categories
The channels are categorized. Categories
allow you to tune to stations broadcasting
a certain type of program (category mode)
(
page 199).
Calling up the SAT main menu
Press SAT soft key.
SAT is displayed in the upper left-hand
corner of the display.
Prior to activation of the satellite radio
service (
page 198).
After activation of satellite radio
service (
page 198).
Prior to activation of the satellite radio
serviceThe telephone number of the SIRIUS
Service Center (888-539-7474) is
displayed.
Press ESN soft key.
The twelve-digit electronic serial
number (ESN) of the SAT tuner*
installed in your vehicle is displayed.
This information is required to call the
SIRIUS Service Center for an activation
request.
After activation of the satellite radio
service
The satellite radio main menu appears.
The radio station selected last is audible,
provided it can be received.The first channel 001 is called up and the
PTY system changes to All categories.
If no station can be received,
ACQUIRING
appears in the display.
If the Satellite radio service is not
activated,
ACQUIRING will also appear in the
radio display and
NO SAT will appear in the
multifunction display.
iCredit card information may also be
required for your application.
The activation process takes approximately 5 to
10 minutes after calling the SIRIUS Service Cen-
ter.
iThe system will tune to a default station if no
station had been selected previously.

208 Controls in detail
Audio system
Pause function
The CD changer mode is interrupted by an
incoming call on the telephone*
(
page 212).

Switching on pause function
Press U button.
The CD changer mode is
interrupted and
PAUSE appears in
the display.

Switching off pause function
Press U button.
The CD changer mode is active
again.Track and time display
Press T soft key.
The number of the track being played
and the elapsed playing time appear in
the display.
Press T soft key again.
The total number of tracks and the total
playing time of the CD appear in the
display.
Press T soft key.
The standard CD playback menu
appears in the display.
GSM network phones
Using your Mercedes-Benz specified
mobile telephone*, a number of functions
and operating steps can be performed and
displayed in the audio system display.
Further operating instructions not covered
here can be found in the operating instruc-
tions for the multifunction steering wheel
and the cellular telephone*.
If your audio system is set up for telephone
operation, the tsymbol will appear in
the display.
When you insert your Mercedes-Benz
specified mobile telephone* into the
telephone cradle, you will be prompted to
enter your PIN for 30 seconds
(
page 209). This display disappears
when you press any button.
When your mobile telephone is inserted
into the telephone cradle, you will see the
reception strength in the upper right-hand
corner of the display.

209 Controls in detail
Audio system
Switching on the telephone
Switching on the telephone
Pressh button.
If the telephone was previously
switched off,
PROCESSING appears in
the display and you will then be
prompted to enter your PIN.
Switching off the telephone
Pressh button for approx.
3 seconds.
PROCESSING appears in the display until
the telephone is off. Afterward,
PHONE OFF appears in the display.PIN entry
Enter PIN number using buttons 1
to R.
If necessary, correct number entered
with the
CLR soft key. Press soft key
briefly to delete the last digit entered;
press soft key and hold to delete the
complete number.
Press OK soft key after entering correct
PIN.
READY or ROAMING will appear in the
display.Adjusting the volume
Turn rotary control of N button
during a telephone call.
The volume will increase or decrease
depending on the direction turned.
Adjusting sound
Adjust sound during a telephone call.
Sound adjustment (
page 191).
iIf the PIN is entered incorrectly three times,
NEED PUK will appear in the display. Enter PUK
via your telephone. Please refer to the separate
telephone operating instructions for more
information.
iThe volume can be adjusted separately for
telephone mode and audio mode.

210 Controls in detail
Audio system
Placing a call
Entering a telephone number and
starting the dialing process
Enter desired telephone number using
buttons 1 to R.
The number can have up to 32 digits,
but only twelve of these are visible in
the display.
If necessary, correct number entered
with the
CLR soft key. Press soft key
briefly to delete the last digit entered;
press soft key and hold to delete the
complete number.
After correct telephone number has
been entered, press s button.Phone book
The numbers stored in the phone book of
the telephone can be called up either by
name or number.
In addition, incoming calls are stored in the
phone book.

Searching and calling up telephone
book entries by name
You can access your mobile
telephone’s phone book using the
audio system. You can access both the
main entries and the sub-entries of
your phone book.
Press MEM soft key or press
button‚ orƒ.
Press desired numerical key 2
to 9.
The stored entries are selected
according to the alphabetical order
of the initial letters (e.g. for
S-Smith, press button 7 four
times).
or
Press and hold button ‚
orƒ.
The system jumps from one initial
letter to the next in ascending or
descending order.
iIf the telephone number has been saved to-
gether with a name in the telephone book, the
name will appear in the display.
iThis is only possible, however, when the call
information transmitted includes the number of
the person calling. If the telephone number is not
transmitted,
NO NUMBER will be stored in the
phone book.

211 Controls in detail
Audio system
Press and hold button ‚
orƒ until desired initial letter
has been reached.
or
Press button ‚ or ƒ
repeatedly until desired entry has
been reached.
The stored entries are selected in
alphabetical order with the
sub-entries.
When you have selected a number,
press s button.
The call will be made.

Viewing the telephone number of a
telephone book entry
Search for desired entry.
Press NUM soft key.
The telephone number of the phone
book entry appears in the display.

Returning calls received
Press MEM soft key or press
button‚ orƒ.
Press RCV soft key (received calls).
The number of received calls and
then the call last received appear
briefly in the display.
Select desired telephone number
with button ‚ or ƒ.
The letter
R and the number of the
memory position appear in the
upper left-hand corner of the
display. The numbers are stored in
the order of the calls received.
When you have selected a number,
press s button.
The call will be made.
iSeveral sub-entries can be stored for each
main entry (name). These entries are marked by
a corresponding abbreviation that appears in the
upper left-hand corner of the display. The
following abbreviations for sub-entries are possi-
ble:
CEL = Mobile phone
HOM = Home
WOR = Work
FAX = Fax
PAG = Pager
TEL = Main

212 Controls in detail
Audio system

Speed dial
If you have stored telephone numbers
as speed dial numbers in your
telephone, you can also enter these
with buttons 1 to R on the radio
head unit.
Press desired button 1 to R
briefly.
Press s button.
The call will be made.

Turbo dial
If you have stored telephone numbers
as turbo dial numbers in your
telephone, you can also enter these
with buttons 1 to R on the radio
head unit.
Press desired button 1 to R
until the call is made.Redial
If the number you have dialed is busy, you
can again place calls to the last ten
telephone numbers dialed using the redial
function.

Manual redial
Press s button.
The telephone number last dialed
will appear in the display.
Select desired telephone number
with button ‚ or ƒ.The letter
L and the number of the
memory position appears in the
left-hand corner of the display. The
numbers are stored in the order of
the calls received.
When you have selected a number,
press s button.
The call will be made.
Accepting an incoming call
If the telephone is active in the background
(reception symbol is visible in the display),
the audio source is muted when an incom-
ing call is received. A ringing tone can be
heard and the caller’s telephone number,
or the name under which the telephone
number has been saved in the phone book,
appears in the display. If the caller’s
number is not transmitted with the call,
CALL will appear in the display.
Press s button.
The call is accepted.
iIf you have activated the automatic redial
function on your telephone, the number of the
person being called is automatically redialed af-
ter a short waiting period if there is a busy signal.
Refer to the separate operating instructions for
the mobile telephone.

213 Controls in detail
Audio system
Muting a call
It is possible to mute a call; the caller is
then no longer able to hear you.

Mute on
PressMUT soft key.
MIC MUTE will appear in the display.

Mute off
PressMUT soft key again.
Terminating a call
Press t button.
The current call is terminated and the
muted audio source becomes active
again.Talking with two callers at the same
time
If you wish to receive or place another call
during an already active call, you can
accept or place the second call and switch
between the callers or combine them into
one call. Note that the features described
here are depending on availability from
your mobile phone service provider.

Placing/accepting a second call
Place new call by entering
telephone number manually.
Press s button.
You are connected to the second
caller; the first caller is kept on
hold.
or
Press s button to accept a
second call.You are connected with the second
caller; the first caller is kept on hold.

Switching between calls
Press 2 and s buttons.
This switches between the calls.
The non-active call is kept on hold.

Terminating a call
Press t button.
The current call is terminated. You
are again connected with the caller
previously placed on hold.

Combining two calls
Press 3 and s buttons.
The calls are combined into one
call.

Terminating a combined call
Press t button.
The connection to both callers is
terminated.
iYou will be notified of the second call acous-
tically, but you will not see this in the display.