NISSAN 2010 Altima - Manual (Page 285)

Improving Recognition of Phone numbers:
You can improve the recognition of phone num-
bers by saying the phone number in three groups
of numbers. For example, when you try to call
800-662-6200, say “eight zero zero” first, and
the system will then ask you for the next three
digits. Then, say “six six two”. After recognition,
the system will then ask for the last four digits.
Say, “six two zero zero”. Using this method of
phone digit entry can improve recognition perfor-
mance.
NOTE:
When speaking a house number, speak the
number “0” as “zero” or “oh”. If the letter
“O” is included in the house number, it will
not be recognized as “0” even if you speak
“oh” instead of “zero”.
4-124 Monitor, climate, audio, phone and voice recognition systems