Mercedes-Benz C-Class 2008 Owners Manual - Manual (Page 241)

240
Controls in detail
Audio system
Functions during a single call
Switching hands-free microphone on or
off
The menu bar changes when you make or
receive a call. Instead of the
Call Lists
menu item, Mic Off or Mic On will appear.
̈ To switch off: Select Mic Off .
The following message will flash up on
the display:
The microphone is off .
When the microphone is switched off
the symbol
> appears in the main
area.
̈ To switch on: Select Mic On .
The following message will flash up on
the display:
The microphone is on .
The microphone is switched on and the
symbol
> disappears in the main area.
Sending DTMF tones
Answering machines or other devices can
be controlled via DTMF tones, e.g. for re-
mote query functions.
̈ To transmit individual characters:
During a call select the required char-
acters.
or
̈ Press the corresponding button on the
audio control unit.
Every selected character is transmitted
immediately.
̈ Transmitting a phone number of a
phone book entry as a sequence of
characters: Select
Name .
̈ Select the desired phone book entry.
The entry is transmitted immediately as
a sequence of characters.
̈ To switch back to call display: Select
Back .
i This function is not possible with all mobile
phones.