Page 81 of 186
81
Telephone*
Important notes
Telephone operation
Phone bookSMS (Mail)
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82 Telephone*Important notes1 Observe all legal requirementsSafety InstructionsWarning
G
Some jurisdictions prohibit the driver from
using a cellular telephone while driving.
Whether or not prohibited by law, for safety
reasons, the driver should not use the cellu
-
lar telephone while the vehicle is in motion.
Stop the vehicle in a safe location before
placing or answering 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.
Bear in mind that at a speed of just 30 mph
(approximately 50 km/h), your vehicle is
covering a distance of 44 feet (approximate
-
ly 14 m) every second.
Warning
G
Never operate radio transmitters provided
with a built-in or attached antenna (i.e. with
-
out being connected to an external antenna)
from inside the vehicle while the engine is
running. Doing so could lead to malfunction
of the vehicle's electronic system, possibly
resulting in an accident and/or personal
injury.
Tips on telephone operation iOnce the cellular phone is inserted into
the telephone cradle, it can be operat
-
ed:
using the cellular phone itself,
using the COMAND control unit,
using the multifunction steering
wheel, or
using the voice control system*.
Descriptions in this Operator’s Manual
presume that the cellular phone is in
-
serted into the telephone cradle.!Radio transmitters, such as a portable
telephone or a citizens band unit,
should only be used inside the vehicle if
they are connected to a separate exte
-
rior antenna approved by Mercedes-
Benz.
Page 83 of 186

83 Telephone*
Important notes
Always drive with extreme caution
when operating the telephone hands-
free.
For safety reasons, the cellular phone
handset should not be used to place or
receive a call while driving.
If the signal is very weak (display in the
status bar):
Wait until reception improves before
placing a call.
Close the windows and reduce all ex
-
ternal noise as much as possible when
using hands-free operation.
Make sure that the air vents are not
pointed in the direction of the micro
-
phones 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 automatically at
-
tempts to again sign on with a network.
If the message
Enter
unlock
code
is
displayed, enter the unlock code
( page
88)
. Only then will you be able
to use all the telephone functions. You will still be able to make 911 emer
-
gency calls
( page
85)
if the tele
-
phone is locked.
The telephone cannot, or not yet, be used
in the following situations:
The telephone is already unlocked, but
it is not yet registered with the net
-
work. The message
NO SERV.
appears in the
status bar. The telephone automatical
-
ly attempts to register with a network.
If there is no network available, “911”
emergency calls can NOT be placed.
If you try to place an outgoing call, the
message
Call
not
possible
is dis
-
played temporarily.
If the message
Telephone
being
activated,
please
wait
is displayed,
If the message
Please
insert
phone
is
displayed.
Insert the cellular phone into the
telephone cradle.
iThis Operator's Manual describes op
-
eration of the telephone using the
COMAND control unit and the multi
-
function steering wheel. Unless other
-
wise specified, the descriptions and
the illustrated displays refer to the
COMAND control unit. Operation of the cellular phone and
voice control system* are explained in
separate operation guides.
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84 Telephone*Important notesNotes about COMAND telephone fea
-
tures using a Bluetooth® connectionMany of the Mercedes-Benz approved mo
-
bile phones, cradles and adaptors avail
-
able for use in your vehicle utilize
Bluetooth® technology to communicate
with each other and the vehicle. Depend
-
ing on your phone brand and model, the
number of in-vehicle or on-display CO
-
MAND telephone features supported via
Bluetooth® communication, and thus
available for your use, may vary.The descriptions and illustrations in this
section are based on the use of fully com
-
patible Mercedes-Benz approved mobile
phones and cradles that do not utilize Blue
-
tooth® technology to communicate with
each other. If your vehicle is equipped with
integrated Bluetooth® functionality, a
Bluetooth® capable mobile phone, head
-
set, Laptop, PDA, etc. is required to utilize
those features.
For additional information about Mer
-
cedes-Benz approved Bluetooth® mobile
phones and related accessories please
contact the Mercedes-Benz Customer As
-
sistance Center at 1-800-FOR-MERCedes
or your nearest authorized Mercedes-Benz
Center.
Page 85 of 186

85 Telephone*
Telephone operation
Telephone operation
Switching ON The telephone is switched ON automatical
-
ly when COMAND is activated. The cellular
phone must be readily inserted into the
cradle.If COMAND is switched ON, the switched
OFF telephone can also be switched ON
manually:
Press and hold
for a few seconds
until the telephone is switched ON.
The Telephone main menu appears ( page
89)
.
One of the following messages could also
appear:
Please
insert
phone
Insert the cellular phone into the
cradle.
Phone
not
installed
Your vehicle is not configured for cellu
-
lar telephone operation.
Please
insert
SIM
card
This message appears only when using
a GSM cellular phone.
Insert a SIM card (
Telephone Op
-
eration Guide).
Switching OFF
In the Telephone main menu ( page
89)
, press and hold
for
longer than 2 seconds.
or
Switch COMAND OFF
( page
29)
.
The telephone switches OFF after a
one-minute delay. If a call is in progress
during this time, the telephone switch
-
es OFF approx. one
minute after the
call is ended.
The following conditions must be met for a
“911” emergency call:
cellular phone readily inserted
telephone switched ON
available cellular phone network
Switching the phone ON/OFF
iIf a call is in progress (handsfree) you
cannot switch the COMAND OFF,
.
is
disabled.
911 emergency callsWarning
G
The “911” emergency call system is a
public service. Using it without due
cause is a criminal offense.
Page 86 of 186

86 Telephone*Telephone operationThe 911 emergency call will also function if
the telephone is locked.Placing an emergency call An emergency call can be placed using the
cellular phone or the COMAND control
unit.Using the cellular phone ( Telephone Operation Guide).
Using the COMAND control unit during
PIN or unlock code entry
Press the
911
soft key.
The system opens an inquiry menu
prompting you if you want to dial a
911 call.
If necessary, press
to select
Yes
.
Press
to confirm
Yes
if you want to
place the 911 emergency call.
The telephone establishes the connec
-
tion, a ringing tone is audible.
Wait until the emergency call center
answers, then describe the emergency.
If you do not want to place the emergency
call:
Press
to select
No when the inquiry
menu appears.
Press
to confirm
No.
Using the COMAND control unit after
PIN and unlock code entry
Press
repeatedly until the Tele
-
phone main menu appears.
iIf you cannot make an emergeny call,
you will have to initiate rescue mea
-
sures yourself.
Page 87 of 186