Page 84 of 185
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.
Tips on telephone operation
i
Once 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.
i
This 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.
!
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 85 of 185
84 Telephone*
Important notes
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 dis-
played, 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 86) 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 displayed
temporarily.
If the message Telephone being
activated, please wait
is displayed,
If the message Please insert phone is dis-
played.
Insert the cellular phone into the
telephone cradle.
Page 86 of 185
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 30).
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.
Switching the phone ON/OFF
i
If a call is in progress (handsfree) you
cannot switch the COMAND OFF, is
disabled.
Page 87 of 185
86 Telephone*
Telephone operation
The following conditions must be met for a
“911” emergency call:
cellular phone readily inserted
telephone switched ON
available cellular phone network
The 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.
911 emergency calls
WarningG
The “911” emergency call system is a
public service. Using it without due
cause is a criminal offense.
i
If you cannot make an emergeny call,
you will have to initiate rescue mea-
sures yourself.
Page 88 of 185
87 Telephone*
Telephone operation
Using the COMAND control unit after
PIN and unlock code entry
Press repeatedly until the Tele-
phone main menu appears.
In succession, press the number keys
, and .
Press.
The telephone establishes the connec-
tion, the ringing tone is audible.
Wait until the emergency call center
answers, then describe the emergency.
The PIN protects the telephone against un-
authorized use. Your PIN is found in the
telephone service provider's documenta-
tion.
Commit your PIN to memory.
Most telephone functions are not available
before entering the PIN.
Press the corresponding number key
- for each digit.
In case of erroneous entry, you can de-
lete the last or more digits:
Press the Delete soft key as often as
required.
Once all digits have been entered,
press the
OK soft key.
Entering the PIN (only GSM)
i
If a GSM cellular phone is used, a PIN
may also have to be entered.
The PIN may be entered on the cellular
phone itself (
Telephone Operation
Guide).
Page 89 of 185
88 Telephone*
Telephone operation
If the input is correct, the telephone
will log itself into the network.
If the input is incorrect, message
Wrong PIN number will appear briefly.
Re-enter the PIN.
After three incorrect entries, the SIM
card is blocked. Message
SIM card
blocked
will appear briefly.
The PUK has to be entered.
(
Telephone Operation Guide)The unlock code protects the telephone
against unauthorized use. The unlock code
can be activated on the telephone
(
Telephone Operation Guide).
Commit your unlock code to memory.
The telephone functions are available only
after entering the unlock code.
Example: unlock code 2307
In sequence, press the number
keys, , and .
In case of erroneous entry, delete the
last or more digits:
Press the Delete soft key as often as
required.
i
The telephone cannot be used before it
is logged- in.
Entering the unlock code
i
The system switches back to last mode
if the unlock code is not entered within
8 seconds after you are prompted to do
so.
Page 90 of 185
89 Telephone*
Telephone operation
After entering all digits, press or the
OK soft key.
All telephone functions are available if
the correct number has been entered.
After registering, Information referring
to the telephone signal appears at the
right end of the status bar.
The unlock code has to be entered
again if the entry was incorrect.
When COMAND is switched ON, switching
to telephone mode from any other opera-
tion mode is made as follows.
On the COMAND control unit
Press.
The Telephone main menu opens
(
page 89).On the multifunction steering wheel
See (page 25)
1 Observe all legal requirements
Press.
The Telephone main menu appears.
Telephone status information is displayed
on the right end of the status bar.
The following displays are possible:
READY = telephone is logged into your
cellular phone home network and
ready for use,
Switching to telephone mode
Telephone main menu
WarningG
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.
Page 91 of 185
90 Telephone*
Telephone operation
ROAMING = telephone is logged into a cel-
lular phone network outside your home
network,
NO SERV. = no network available,
= telephone signal strength,
= call active (page 96).
Other messages could also appear:
If the message
Please insert phone, Phone not installed or
Please insert SIM card appears, see chap-
ter “Switching the phone ON / OFF”
(
page 85)
If the message
Please Enter PIN: appears, see “Entering
the PIN” (
page 87)
If the message
Enter unlock code: appears, see “Enter-
ing unlock code” (
page 88)Selectable soft keys and options
soft key
Opens the phone book (
page 98),
Recvd.# soft key
Opens the accepted and missed calls
list (
page 93),
Dialed # soft key
Opens dialed calls list (
page 94),
SMS soft key
Provides access to the SMS menu
(
page 101),
Entry of a phone number (page 91).The ringing tone is audible in the event of
an incoming call. The call screen pops up
on the current display.
If the multifunction display in the instru-
ment cluster is set to telephone mode, the
call screen also appears in the multifunc-
tion display.
i
If a list is empty, the corresponding soft
key is without function. This is indicat-
ed by the corresponding soft key dis-
play being shaded out.
Answering an incoming call