Mercedes-Benz 2009 S-Class Operator's Manual page 294

Control systems
Voice Control troubleshooting
Problem
Voice Control System does not recognize a
address book entry.
292
Possible cause/consequence
The voice entries in the address book sound
too similar.
Suggested solution
X
When you create your address book
entries, select names with the greatest
possible acoustic differences: If for
example you have the names Smith and
Schmidt, choose for example "Smith work"
or "Schmidt John".
X
Speak the command "List phone book".
The system reads out the address book
entry by entry.
X
Press ! when the desired entry is being
read out.
The entry is selected and the
corresponding number is dialed
( Y page 269).