Mercedes-Benz COMAND Operator's Manual page 218

Entering Numbers
Digits from "zero" to "nine" are permit-
ted.
Say the phone number in groups of
three to five digits.
Spell
The letters of the alphabet and the
numbers 0 - 9 are permitted.
Say the letters in groups of five to sev-
en letters.
Say each individual letter clearly.
i
Using individualization, you can fine-tune
voice control to your own voice and thus improve
voice recognition. The process of individualiza-
tion is described in chapter "System Settings"
( page 39).
i
If you use individualization, it may impair
recognition of other users. Switch off individual-
ization if it makes recognition of other users
worse.
Voice Control
Overview
217