MERCEDES-BENZ R-Class 2006 W251 Comand Manual
Page 131 of 242
129 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 137). 
Try again later. 
Page 132 of 242
130 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 133) 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 134), 
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 
Page 133 of 242
131 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 132).
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. 
Page 134 of 242
132 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. 
Page 135 of 242
133 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 PIN code
Enter the four-digit PIN code on the 
mobile phone or at the COMAND. Refer 
to the mobile phone operator’s manual 
on how to do this.
If no SIM card is in the telephone, the 
message 
Please insert SIM card 
(Emergency Call 911 only pos-
sible with phone)
 appears.  
Insert a SIM card. Refer to the mo-
bile phone operator’s manual.
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).   
Page 136 of 242
134 Telephone*
Telephone operation
Entry incorrect:
You will hear a warning sound. The mes-
sage 
PIN-Code incorrect will appear.
You need to re-enter your PIN code.Entering the PUK
If you enter your PIN 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 menu
!
If the PIN is entered incorrectly three 
times in a row, the SIM card will be 
blocked. The message 
SIM-card 
blocked
 is displayed briefly. After that 
the message 
PIN blocked. Please 
enter PUK on cell phone 
is 
displayed.
i
The PUK number is provided by your 
telephone service provider.
Switching to telephone operation  
Page 137 of 242
135 Telephone*
Telephone operation
The telephone is ready for operation 
Message 
Ready and the reception 
strength Ö are shown on the status bar.
Other messages
ROAMING 
The telephone is using a non home type 
system
No Serv
The telephone is not logged into a net-
workFull screen messages:
Telephone not inserted
Plug the mobile phone into the mobile 
phone cradle*. Refer to the separate 
mobile phone operator’s manual.
Telephone not available
Your vehicle may not have a mobile phone 
cradle* installed and/or the telephone 
control unit may not be coded properly. 
Contact an authorized Mercedes-Benz 
Center.  
Page 138 of 242
136 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 141). 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 
reject and than press E.Setting the volume for hands-free ope-
ration
Raising 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 
Page 139 of 242
137 Telephone*
Telephone operation
You can use the following functions to 
make a phone call:
Dialing a telephone number 
(
page 137)
Redial (page 138)
Selecting an entry from the Received 
calls list (
page 139)
Selecting an entry from the Dialed 
numbers list (
page 139)
Use speed-dialing (page 141)
Use quick-dialing (page 141)
Selecting a phone book entry and 
dialing the number (
page 145)Dialing a telephone number 
Entering a telephone number
Open the Telephone menu 
(
page 134).
Use the number keys 1 - 0 to enter 
the telephone number.Deleting the last or several digits:
Press the Delete soft key once or se-
veral times.
Deleting all digits:
Press K.
or
Press and hold Delete soft key for 
more than 2 seconds.
Outgoing calls 
Page 140 of 242
138 Telephone*
Telephone operation
Begin dialing
When 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 dialing
Transmitting 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.