Page 99 of 195

98 TelephoneTelephone operation 
Telephone operation
AutomaticallyThe 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
 101)
 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 phone)
 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
 102)
, 
press a longer than two seconds.The message 
Telephone being activa
-
ted, please wait 
will appear followed 
by 
Phone off
.
Switching telephone operation on
Switching telephone operation off
209_MY09_A_US.book  Seite 98  Montag, 26. Mai 2008  6:12 18 
         
        
        
     
        
        Page 100 of 195

99 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 phoneThe emergency call will also be placed 
if the phone is locked 
( page
 100)
.
GSM mobile phoneIf 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”iThis function places a call to the local 
 
911 provider. It does not initiate a 
 
Tele Aid call.
Warning
G
The 911 emergency call system is a public 
service. Using it without due cause is a cri
-
minal offense.
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        Page 101 of 195
100 TelephoneTelephone operationInitiating an emergency callIf 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.
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        Page 102 of 195

101 Telephone
Telephone operation
TDMA or CDMA mobile phoneEntering 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 phoneEntering 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 codes
iYour 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.iYou must always enter the unlock code 
when you switch on the telephone the 
first time (if phone is in locked mode).  
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        Page 103 of 195

102 TelephoneTelephone operation
If no SIM card is in the telephone, the 
message 
Please insert SIM card 
(Emergency Call 911 only possible 
with phone)
 appears.  
Insert a SIM card. Refer to the mo
-
bile phone operator’s manual.
Entry incorrect:You will hear a warning sound. The mes
-
sage 
Code incorrect
 will appear.
You need to re-enter your code.
Entering the PUKIf you enter your code incorrectly three 
times in a row, you need to enter the PUK 
number.
The PUK can only be entered at the mobile 
phone. Refer to the mobile phone 
operator’s manual.When the COMAND
 is switched on, you 
can switch to telephone operation from 
any other system (e.g. radio):
Press a.The Telephone menu will appear.
Telephone menuThe telephone is ready for operation Message 
Ready
 and the reception strength 
Ö are shown on the status bar.
Full screen messages:Phone not inserted
Plug the mobile phone into the mobile 
phone cradle. Refer to the separate 
mobile phone operator’s manual.
Phone not availableYour vehicle may not have a mobile phone 
cradle installed and/or the telephone con
-
trol unit may not be coded properly. Con
-
tact an authorized Mercedes-Benz Center. 
!If the code is entered incorrectly three 
times in a row, the SIM card will be 
 
blocked. The message 
SIM-card blo
-
cked 
is displayed briefly. After that the 
message 
PIN blocked. Please enter 
PUK on cell phone 
is displayed.
iThe PUK number is provided by your 
telephone service provider.Switching to telephone operation 
209_MY09_A_US.book  Seite 102  Montag, 26. Mai 2008  6:12 18 
         
        
        
     
        
        Page 104 of 195
103 Telephone
Telephone operation
The system detects an incoming call, the 
phone rings.Incoming calls are indicated in a window in 
any system (e.g. radio).The window shows:
the caller’s number if it is transmitted 
or
the caller’s name if her or his name and 
number are saved in the phone book or
Unknown
.
Accepting a call 
Press k.
or
Press E to confirm 
accept
.
The display will change to the 
call
 menu 
( page
 108)
. In the status 
bar, the off-hook symbol will appear. 
An active audio source will be muted. 
You talk over the hands-free set.
Rejecting a call 
Press K.
or
Push the joystick to H to highlight 
re-
ject
 and than press E.
Setting the volume for hands-free ope
-
rationRaising the volume
Turn the rotary control on the e but
-
ton to the right.
Lowering the volume
Turn the rotary control on the e but
-
ton to the left.
Ending a call    
Press K.
or
Press the 
End
 soft key.
Incoming call
209_MY09_A_US.book  Seite 103  Montag, 26. Mai 2008  6:12 18 
         
        
        
     
        
        Page 105 of 195
104 TelephoneTelephone operationYou can use the following functions to 
make a phone call:
Dialing a telephone number ( page
 104)
Redial 
( page
 105)
Selecting an entry from the Received 
calls list 
( page
 106)
Selecting an entry from the Dialed 
numbers list 
( page
 106)
Use speed-dialing 
( page
 108)
Use quick-dialing 
( page
 108)
Selecting a phone book entry and 
dialing the number 
( page
 112)
Dialing a telephone number Entering a telephone number
Open the Telephone menu ( page
 102)
.
Use the number keys 1 - 0 to enter 
the telephone number.
Deleting the last or several digits:
Press the 
Delete
 soft key once or seve
-
ral times.
Deleting all digits:
Press K.
or
Press and hold 
Delete
 soft key for more 
than 2 seconds.
Outgoing calls
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        Page 106 of 195

105 Telephone
Telephone operation
Begin dialingWhen you have entered the telephone 
number
Press E.
or
Press k.
or
In the Telephone menu, press the 
Send
 
soft key.
Dialing will begin. If a name is associated 
with the phone number saved in the phone 
book, the name appears on the screen. In 
the status bar, the off-hook symbol will ap
-
pear.COMAND will mute an active audio source. 
If the person called answers the call, the 
call is active. You talk over the hands-free 
set.The message 
Call failed
 may 
 
appear if you place an outgoing call. 
 
Try again later.Subsequent dialingTransmitting other dial tones:
During a call you can press the number 
keys 1 through 0, # and *.
Ending a call 
Press K.
or
Press the 
End
 soft key.
Redial 
Press k.
or
Press the 
Dialed#
 soft key.
The Dialed numbers list will appear. 
The most recently dialed number is 
highlighted.
Push the joystick g or G to select 
the desired entry.
To dial the selected number:
Press E.
or
Press k.
or
Press the 
Send
 soft key.
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