2003 MERCEDES-BENZ C-Class phone

69 Telephone
Important notes


Close the windows and reduce all out-
side noise as much as possible when
you use hands-free operation.


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 “Locked. Please enter
code” appears, enter the unlock code
to enable all telephone functions
(page 78).


If a menu other than the telephone
menu is displayed on the COMAND
screen, the display will change if an
outgoing call is sent out via the multi-
function steering wheel.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 Service” appears.
The telephone will try to register 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


if you try to make a call (message
appears for 8 seconds)


The message “Telephone is being acti-
vated. 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.


One of the two messages “No telepho-
ne” or “Telephone not connected” ap-
pears.
Please connect the telephone.


The message “Telephone defective”
appears.
Please contact an authorized
Mercedes-Benz Center.

70 TelephoneImportant notesIn the following situation, it is not yet pos-
sible to use the functions “Dial number
from phone book”, “Redial” and
“Speed-dial”:

The mobile telephone has been
plugged into its holder correctly, the
COMAND operating unit has been swit-
ched on and the phone book download
function has been actuated (see tele-
phone operation guide).
Once the download process has been
completed, the above functions be-
come available. It is not possible to make a call when one
of the following messages appears:


“System busy, redial?”
Dialing has failed because system is
busy.


“No service, redial?”
Dialing has failed because network
cannot received.


“Phone off”
Tele Aid is active, the telephone func-
tion will switch on automatically after
Tele Aid is ended.

71 Telephone
Multifunction display
Multifunction display

Turn the electronic key in the steering
lock to position “1” or “2”, refer to ve-
hicle operating instructions.
1
2
5
3
4
P82.85-9290-31
Function
Page
1
Multifunction display on
the speedometerUsing the control system
2
Adjusting the dial/idle
tone volume during a call
I lowering
J raising
3
To make a call
K Accept an incoming
call
Start dialing opera-
tion
Activate the redial
memory
79
85
91
L End a call
Interrupt dialing
The message
READY
appears
79
83
4
Changing from system to
system, displaying network
provider
E next
H previous
5
Pages through the phone
book in alphabetical order
F forward
G backwardFunction
Page

72 TelephoneMultifunction displayDisplay overview

73 Telephone
Multifunction display
Function
Page
1
The telephone is switched off
Switching telephone operati-
on on
78
2
Entering the unlock code
78
3
The system is searching for
the corresponding network
78
4
The telephone is ready for use
85
5
The vehicle is currently out-
side the transmission or re-
ception range
Function
Page
6
Phone book is empty and/or
has not been loaded into the
COMAND telephone memory
85
7
Name selected from the
phone book
85
8
Dialing begins
86
9
Dialing is completed and the
name is displayed.
The display will remain until
you end the call
86
Function
Page
10
Reception strength is indica-
ted by up to 5 bars for a con-
nected and functional
telephone.
79
11
Number of the memory locati-
on and the name stored here
85
12
Call time
86

74 TelephoneTelephone operation
Telephone operationQuick reference

75 Telephone
Telephone operation
Function
Page
1
Switching the COMAND
on/off
12
2
Entering the unlock code
Entering a telephone number
Speed-dialing (only with
COMAND)
Quick-dialing (for the first 10
memory locations)
Entering the
emergency call

“9-1-1”
78
82
95
97
107
3
Subsequent dialing
84
4
Subsequent dialing
84
5
Calls the previous menu, un-
less the main telephone menu
is displayed
6
Deletes the last digit or the
whole entry if the unlock code
or a phone number are ente-
red
83
Function
Page
7
Turning
Highlights a menu field, a list
entry, or a symbol
Pressing
Activates a sub-menu, con-
firms an entry/selection

“Send” is highlighted
Begin dialing


“End” is highlighted
Ends the call


“Mute” is highlighted
Switches off the micro-
phone of the hands-free
telephone
Function
Page
8
Sets the volume for hands-
free operation of the telepho-
ne (during a call)
80
9
Switching the telephone
operation on/off
78
10
Color screen with main tele-
phone menu

76 TelephoneTelephone operationMenu overview
P82.85-9120-31
1
101112
13
14
1516
2
4
5
3
687
9
17