MERCEDES-BENZ C300 4MATIC 2008 W204 Owner's Manual

230 Controls in detail
Audio system
TEL-Basic display
Press buttonh on the audio control
unit to call up the telephone mode.
When the connected phone is ready for op-
eration, the display will look like this:
The following information is displayed in
the status bar:

Actual time:
04:38

Bluetooth® device name of the con-
nected phone, in this case:
blue_mobil

Mobile phone network signal
strengthI. This information will
only be shown with suitable tele-
phones.The bars indicate the current signal
strength of the mobile phone network
for reception. Optimum reception is in-
dicated by all bars full. All bars empty
indicates very poor or no reception.

Receiver symbols ort.
The receiver symbol indicates whether
a call is being connected or is in
progress:
t - not active

READY indicates that a call is possible.

NO SERVICE indicates that the mobile
network is not available.Setting transmit and receive volume
h
Tel
Phone List.
Select an mobile phone from the list.
Select Options
Reception Volume
or
Transmission Volume.
To set the volume: Slideqmror
rotateymz the audio controller.
The volume bar moves up or down.
To confirm selection: Press n or
slideomp the audio controller.
iThese settings should normally not be
changed as the factory settings are matched to
most mobile phones. Find out about the opti-
mum settings for your mobile phone at an
authorized Mercedes-Benz Center.
iChanges may result in significant impair-
ments to the transmission quality. These set-
tings may not be changed during an active phone
call.

231 Controls in detail
Audio system
“911” emergency call
The following describes how to dial a “911”
emergency call using the audio system
head unit when a Mercedes-Benz specified
mobile phone* is connected via the Blue-
tooth
® interface to the audio system. Un-
less otherwise specified, the descriptions
refer to the audio system head unit. Consult the separate telephone operating
instructions that came with your mobile
phone* for information on how to place a
“911” emergency call on the mobile
phone*.
The following conditions must be met for a
“911” emergency call via the audio
system:

Telephone must be switched on.

The corresponding mobile communica-
tions network must be available.
If you cannot make an emergency call, you
will have to initiate rescue measures your-
self. GSM network phones
Placing a “911” emergency call using
audio control unit with the phone un-
locked
Press hbutton to switch to tele-
phone mode.
Enter 911 using the number keypad on
the audio control unit.
Press sbutton.
or
Press n for dialing to begin.
DIALING appears in the audio display
while the telephone establishes the
connection.
Wait until the emergency call center
answers, then describe the emergency.
iThe “911” emergency call system is a public
service. Using it without due cause is a criminal
offense.
iThis function places a call to the local 911
provider. It does not initiate a Tele Aid call.
iEmergency calls may not be possible with all
telephone networks or if certain network serv-
ices and/or telephone functions are active.
Check with your local service providers.

232 Controls in detail
Audio system
Placing a “911” emergency call with the
phone lockedCDMA network phones
Placing a “911” emergency call using
audio control unit with the phone un-
locked
Press hbutton to switch to tele-
phone mode.
Enter 911 using the number keypad on
the audio control unit.
Press sbutton.
or
Press n for dialing to begin.
DIALING appears in the audio display
while the telephone establishes the
connection.
Wait until the emergency call center
answers, then describe the emergency.
Placing a “911” emergency call with the
phone locked
iIf no SIM card is in the mobile phone, with a
few types of mobile phones
NO SERVICE ap-
pears in the audio display. In that case, you only
can make an emergency call on the mobile
phone itself, without the use of the audio control
unit.
iIf the mobile phone is locked, you only can
make an emergency call on the mobile phone it-
self, without the use of the audio control unit.
iIf the mobile phone is locked, you only can
make an emergency call on the mobile phone it-
self, without the use of the audio control unit.

233 Controls in detail
Audio system
Phone book
You can save telephone numbers in the au-
dio system's phone book.
Receiving business cards (vCards)
You can import business cards (vCards)
from external Bluetooth
® phones into your
audio system's phone book. To do this:

Bluetooth® must be activated on the
audio system and on the external Blue-
tooth
® phone (see the operating in-
structions for the mobile phone).

The external Bluetooth® phone must be
able to send vCards via Bluetooth® (see
the operating instructions for the mo-
bile phone).

The external Bluetooth® phone in the
vehicle must be switched on and au-
thorized.
h
Tel
Receive Business
Cards
.
Press n to confirm.
To import: Start the data transfer on
the external Bluetooth® phone (“Export
business cards (vCards)”, see the oper-
ating instructions for the mobile
phone).
The audio system imports the data for
the business cards and displays the
number of business cards received.
To end reception: Press n.
or
Press buttoní in the center con-
sole (
page 184).Deleting external Data
h
Tel
Delete External Data.
A prompt appears asking whether the
data should be deleted.
Select Yes or No.
If you select
Yes all personal data are
then deleted from the phone book.
Opening the phone book
h
Name.
Entries in the phone book are displayed
in alphabetical order. The smart speller
is active and appears near the bottom
of the display.
You can use the smart speller to reduce
the number of entries you need to make.
iThese entries are retained even if you use
the audio system with another mobile phone.
You should delete these entries before handing
over or selling your vehicle.
iIf you switch to a different mode while
vCards are being received (e.g., press
buttonb), reception of vCards will be abort-
ed.
iSelect Back or switch to a different mode to
abort reception.


234 Controls in detail
Audio system
Switching from the search speller to
the list: Slideqmrepeatedly or press
and holdn until the search speller is
hidden.
or
Selectd.
Switching from the list to the search
speller: Press buttoní.
Selecting an entry
Selecting via search speller
Switch if necessary from the list to the
search speller.
To switch search speller character
set: Select#.
Depending on the previous setting, this
switches it to letters with special char-
acters or numbers with special charac-
ters
To enter characters: Slideompor
rotateymz the audio controller to se-
lect the characters for the required en-
try.
The first letters you enter determine
the first letters of the word you are
looking for.
Press n to confirm.
The first entry containing the selected
initial letters is highlighted in the list. If
there are a number of similar entries,
the next different character is
displayed.
Example:
In the example, the first letters of the
names
Fisher, Bob and Fisher, Kim are
the same. The first possible distinct letter
is the
B or the K.
Therefore,
B and K are offered as possibili-
ties.
Select the characters for the required
entry one after another.
As soon as the selection has been nar-
rowed down to a single entry, the audio
system will switch to the list automati-
cally.
To delete an individual character:
Selectõ and briefly pressn.
or
Press buttonî next to the audio
controller.
After entering each character or after
each deletion of a character, the clos-
est matching entry is given at the top of
the list.


235 Controls in detail
Audio system
To delete an entire entry:
Selectõ and press and holdn un-
til the entire entry has been deleted.
or
Press and hold î until the entire en-
try has been deleted.
Ending search: Switch from the
search speller to the list.
The top list entry is highlighted auto-
matically.
Selecting via list
Switch if necessary from the search
speller to the list.
Slideqmror rotateymz the audio
controller until the desired entry is
highlighted.
Press n to confirm and a call will be
initiated.Displaying details on an entry
The audio system can also fully display an
abbreviated entry.
Select entry.
Slidemp to select Options.
Press n to confirm.
Select Details.
A screen with the details of the select-
ed entry appears.
To close details screen: Slideqmr,
or omp, or rotateymz, or press
buttonî.Deleting entry
Select entry
Slidemp to select Options.
Press n to confirm.
Select Delete.
You will be prompted to confirm that
you really want to delete the entry.
Select Yes or No.
If you select
Yes the actual entry is de-
leted from the phone book.

236 Controls in detail
Audio system
Call lists
The audio system displays the calls re-
ceived (including missed calls) or made
during phone mode in their own lists.
Calling up the list
h
Call Lists.
Select Calls Received or Calls Di-
aled
.
The appropriate list appears.
Slideqmror rotateymz the audio
controller until the desired entry is
highlighted.
Initiating call: Press buttonn or
s.
To close the lists: Press button í.Deleting call lists
In the phone main menu select Call
Lists
.
Select Delete Call Lists.
You will be prompted to confirm that
you really want to delete the entry. The
question
Do you want to delete call
lists
appears in the display.
Select Yes or No.
Press n to confirm.
If you select
Yes both lists are deleted.
iThe particular menu item can only be select-
ed if calls have already been received or made
from audio system.
The display of missed calls in the audio system
display is not possible with all mobile phones.
The control system displays the list of
Dialed
numbers
in the multifunction display.
iThe audio system's call lists are not syn-
chronized with the call lists on your mobile
phone. If you make a call from your mobile phone
and only use the audio system's hands-free de-
vice, these calls will not be listed.
iIf there is a symbol with a telephone receiver
in front of the phone number or the name, then
you have missed this call (e. g. in the highlighted
line of the following figure).
iThe saved call lists are retained in the audio
system, even if you use the audio system with
another mobile phone. For this reason you
should delete any call lists before handing over
or selling the vehicle.

237 Controls in detail
Audio system
Making calls
Press buttonh on the audio control
unit to call up the telephone mode.
When the mobile phone is ready for opera-
tion, the display will look like this:
Initiating an outgoing call
Entering phone number via the audio
control unit
You can enter numbers and special charac-
ters via the telephone keypad.
Entering: Use 0 to 9, ô and ó to
enter characters.You can enter the * character by press-
ing the ó button once. You can en-
ter the + character by pressing the
ó once and then again within ap-
prox. 1.5 seconds.
To delete individual digits: Briefly
press buttonî in the audio control
unit.
To delete an entire entry: Press and
hold buttonî until the entire entry
has been deleted.
or
Press buttont.
Entering phone number via the audio
controller
In addition to the actual menu bar, the tele-
phone main menu features a second bar
containing numbers, the number menu.
When the bar is active (highlighted), you
can select elements.
To enter digits: Slideompor
rotateymz the audio controller to se-
lect the required digit.
Press n to confirm.
Repeat the procedure, until you have
select all digits for the necessary
phone number.
To delete individual digits:
Slideompor rotateymz to
selectõ and briefly pressn.
or
Press îbutton next to the audio
controller.

238 Controls in detail
Audio system
To delete entire phone number:
Slideompor rotateymz to
selectõ, press and hold n until
the phone number has been deleted.
or
Press and hold î until the entire en-
try has been deleted.
or
Press buttont.
To initiate a call: Slideompor
rotateymz the audio controller to se-
lect ö.
Press n to confirm.
or
Press buttons.
Initiating a call to a phone book entry
h
Name.
Select entry (page 234).
Press buttons or n.Initiating a call to a call list entry
h
Call Lists.
Select Calls Received or Calls Di-
aled
.
The appropriate list appears.
Select entry (page 236).
Press buttons or n.
Redialing
Press buttons.
or
Selectö and press button n.The dialed calls list appears. The call di-
aled last will be at the top of the list.
To select a call: Slideqmror
rotateymz the audio controller until
the desired entry is highlighted.
Initiating call: Press buttonn
ors.
Aborting dialing or ending a call
h
4 and press buttonn.
or
Press buttont on the audio control
unit.
iIn order to use the redial function, no num-
bers may have been entered.

239 Controls in detail
Audio system
Rejecting or accepting calls
You will be notified of an incoming call by
the ringing tone and a message on the dis-
play.
If the caller's name and number are among
the entries in the audio system's phone
book and the caller has not withheld this
information, it will appear on the display. If
the caller withholds this information, you
will see:
To accept: Press buttons on audio
control unit.
or
Press n on the audio controller.
To reject: Press buttont on audio
control unit.
or
Slideomor rotateymz the audio con-
troller to select
Reject, and press n
on the audio controller to confirm.
The call is rejected.If you have accepted the call using the au-
dio control unit, audio controller, or the
multifunction steering wheel, the call will
be conducted via the hands-free system.
The volume of the call can be adjusted
(
page 189).
Further operating functions can be found
in the “Functions during a single-call” sec-
tion (
page 240).
You can also accept a call if the audio dis-
play is showing a screen other than the
telephone mode screen. After accepting
the call, the display switches to the phone
display. Once the call is over, the display
for the previous mode will appear again.
iDepending on the mobile phone you are us-
ing, the audio system's ringing tone may differ
from the one you have set on your phone. You
may hear

the ringing tone set on the mobile phone

the audio system's preset ringing tone

the audio system's preset ringing tone and
the ringing tone set on the mobile phone.