Lexus 2006 lx 470 Manual page 402

IN CASE OF AN EMERGENCY
Tips for entering a phone number using the dial and store
commands:
D Say the entire 7 , 10 or 11 digit number and wait for the
system to respond. You do not need to say "Dial", "Store",
or "Verify" after the phone number.
D If you want to enter a number that is not 7 , 10 or 11 digit,
use the digit dial or digit store commands.
D Do not pause between the digits. If there is a long pause
between digits, the system may think that you have finished
saying the entire number.
D The system does not recognize the words "Hundred" or
"Thousand". Instead, you must say each digit. For
example, a number starting with "1 800 .." is pronounced
"one eight zero zero...".
D The system often works better when the digits are combined
smoothly into a single phrase. Try saying the entire phone
number more rapidly.
D If problems continue when saying the entire phone number,
try using the digit dial or digit store commands to enter one
digit at a time.
380
<If problems continue>
Say each one of the syllables in the word clearly. Do not omit
any of the syllables.
Be sure to articulate each sound in the word. The voice
recognition system can have trouble recognizing a word when
final consonants are not pronounced. It may be helpful to
emphasize the final consonant.
If the system is confusing 2 commands that are similar (e.g.
"Dial" and "Redial"), be sure to pronounce the distinction. In
this example, "Redial" may be recognized better if the first
syllable is emphasized and slightly lengthened.
Avoid clipping short words and syllables. Instead, try
lengthening the short words and syllables, and slow down your
overall speech rate a little. You can also try lengthening
different syllables of the word.
Try speaking louder. When there is a lot of background noise,
the system has more trouble hearing your speech. If, however,
you find that you are speaking so loud that you are stressing
your voice, speaking somewhat quieter but with clear
pronunciation may help.