2007 MERCEDES-BENZ C-Class Telephone

90 Telephone*
Important notes

Important notes
In chapter “Telephone”, you will find de-
tailed information regarding the telepho-
ne*, including emergency call.
1 Observe all legal requirements
WarningG
Some jurisdictions prohibit the driver from
using a cellular telephone while driving a ve-
hicle. Whether or not prohibited by law, for
safety reasons, the driver should not use the
cellular telephone while the vehicle is in mo-
tion. Stop the vehicle in a safe location be-
fore answering or placing a call.
If you nonetheless choose to use the cellular
phone while driving, please use the hands-
free device and be sure to pay attention to
the traffic situation at all times. Use the cel-
lular phone
1 only when road, weather and
traffic conditions permit.
Never operate radio transmitters equipped
with a built-in or attached antenna (i.e.
without being connected to an external an-
tenna) from inside the vehicle while the en-
gine is running. Doing so could lead to
malfunction of the vehicle’s electronic sys-
tems, possibly resulting in an accident and
personal injury.
WarningG
Radio transmitters, such as a portable tele-
phone or a citizens band unit should only be
used inside the vehicle if they are connected
to a separate exterior antenna that has been
approved by Mercedes-Benz.

91 Telephone*
Important notes
i
If you have a Mercedes-Benz specified
integrated mobile telephone (TDMA,
CDMA or GSM) and the telephone is
inserted in the cradle, the telephone
functions can be used as follows:
at the COMAND
at the multifunction steering wheel
This instruction manual describes the
operation at the COMAND. Unless
otherwise indicated, the descriptions
and illustrations refer to the COMAND.
Operation at the mobile phone is
described in separate operating guides.
Refer to the vehicle Operator’s Manual
for operation of the telephone using the
multifunction steering wheel.
i
In certain menus, the COMAND can
display date and time of the calls.
The COMAND can display phone
number and name of the other party
(e.g. if the COMAND detects an
incoming call, but also in other menus).
For the number to be displayed, the
number information must be
transmitted with the incoming call. The
same goes for the name display which
additionally requires that the caller’s
number and name are saved in the
phone book.

92 Telephone*
Important notes
Please read the chapter “Telephone”
first before attempting to operate your
telephone.
Please also read the important notes in
the telephone operating manual.
Always drive with extreme caution
when you operate the telephone
hands-free.
For safety reasons, you should not use
the mobile telephone handset to make
a call while driving the vehicle.
If the signal strength is very weak (dis-
play in the symbol bar of all menus):
Wait until reception improves before
making a call.
Close the windows and reduce all out-
side noise as much as possible when
you use hands-free operation.
Also make sure that the air vents are
not pointed in the direction of the
microphones located in the overhead
control panel near the rear view mirror.
Adjust air vents and/or reduce blower
speed if necessary.
A brief disconnection from the cellular
network is not a malfunction, as this
can occur when the network switches
areas. The phone will automatically try
to sign on to a network again.
If the message Enter Unlock Code
appears, enter the unlock code to en-
able all telephone functions
(
page 97). If you do not do so, only
the emergency call (911) is available.
GSM mobile phone
If the message Please enter PIN-
Code
on the mobile phone appears, en-
ter the PIN-code to enable the telepho-
ne functions (
page 97). If you do not
do so, only the emergency (911) call is
available on the mobile phone.In the following situations, it is not possible
or not yet possible to use the telephone:
The telephone is already unlocked but
is not or not yet registered in the net-
work.
The message
No Serv appears in the
status bar. The telephone will try to re-
gister into an existing network. If the
network is available, the telephone will
be ready for use.
The above message also appears
if the network is no longer available
due to weak signals

93 Telephone*
Important notes
The message Telephone being ac-
tivated, please wait
appears.
COMAND prepares the telephone for
use. Select other system functions, e.g.
radio, by pressing the corresponding
button or wait until the telephone is ac-
tive.
The message Phone not inserted
appears.
Please connect the mobile phone.
The message Phone not available
appears.
Please contact an authorized
Mercedes-Benz Center.GSM mobile phone
If the message Please insert SIM
card (Emergency Call 911 only
possible with phone)
appears:
Insert the SIM card into the mobile
phone (Telephone Operating
Manual).
The message Call failed may
appear if you place an outgoing call
(
page 101).
Try again later.

94 Telephone*
Telephone operation

Telephone operation
Automatically
The telephone* is automatically activated
when the COMAND is switched on. The
mobile phone must be inserted in the
mobile phone cradle* at the time
COMAND is switched on.
Manually
Press a.
The menu to enter the unlock code
(
page 97) will appear (only if phone
has been locked before).GSM mobile phone
Enter the PIN on the mobile phone
or at the COMAND.
If no SIM card is in the telephone,
the message
Please insert SIM
card (Emergency Call 911
only possible with pho-
ne)
appears.
Insert a SIM card. Refer to the mo-
bile phone operator’s manual.
Switch the COMAND off (page 34) or
turn off the engine.
The telephone* is switched off with a
time-lag of around 10 minutes. If you
make a call within that time, the
telephone will be switched off around
10 minutes after you end the call. or
In the Telephone menu (page 98),
press a longer than two seconds.
The message
Telephone being
deactivated, please wait
will
appear followed by
Phone off.
Switching telephone operation on
Switching telephone operation off

95 Telephone*
Telephone operation
You can make an emergency call to an
emergency rescue station with a mobile
communication network.
The emergency call will be placed as long
as the corresponding mobile communicati-
on network is available. To do this, switch
the telephone on if you have not already
done so.
TDMA or CDMA mobile phone
The emergency call will also be placed
if the phone is locked (
page 96).
GSM mobile phone
If no SIM card is in the phone or SIM
PIN is not entered, you can only make
an emergency call at the mobile phone.
Emergency calls may not be possible with
all mobile phone networks or if certain net-
work services and/or telephone functions
are active. Check with your local network
operating company.
If you cannot make an emergency call, you
must initiate rescue measures yourself.
Emergency call “911”
i
This function places a call to the local
911 provider. It does not initiate a
Tele Aid* call.
WarningG
The 911 emergency call system is a public
service. Using it without due cause is a cri-
minal offense.

96 Telephone*
Telephone operation
Initiating an emergency call
If Telephone is locked
Press the 911 soft key.
The system opens an inquiry menu
prompting if you want to dial a “911”
call.
The selection marker in the inquiry
menu should be on
Yes.
If necessary, push the joystick to
H to select
Yes.
Press E to confirm Yes if you want to
place the “911” emergency call.
The emergency call will be placed.
Wait until the emergency rescue
station answers and describe the
emergency.
If you do not want to place the emergency
call:
Push the joystick to h to select No
when the inquiry menu appears.
Press E to confirm No.
If Telephone is ready for operation
Press a repeatedly until the
Telephone menu is displayed.
Press 9, 1 and 1 one after the
other.
Press E.
or
Press the Send soft key.
or
Press k.
The emergency call will be placed.
Wait until the emergency rescue
station answers and describe the
emergency.

97 Telephone*
Telephone operation
TDMA or CDMA mobile phone
Entering the unlock code
Use the number keys 1 through 0
to enter the four-digit unlock code.
Asterisks instead of digits will appear in
the input line.
Press the OK soft key.
If entered code is correct and the pho-
ne is registered in a network, the phone
is ready for use and the Telephone
menu will appear.GSM mobile phone
Entering the unlock code
Use the number keys 1 through 0
to enter the four-digit unlock code.
Asterisks instead of digits will appear in
the input line.
Press the OK soft key.
If entered code is correct and the pho-
ne is registered in a network, the phone
is ready for use and the Telephone
menu will appear.
Entering codesi
Your unlock code prevents unauthori-
zed persons from using your telephone.
B e s u re t o m em o ri z e t hi s c o d e , a f o u r d i -
git number, carefully.
If you enter an incorrect code, the sys-
tem returns to the menu for entering the
unlock code.
i
You must always enter the unlock code
when you switch on the telephone the
first time (if phone is in locked mode).