Before recording voice tags or using
voice dialling, you must be aware of
some essential facts:
Voice tags are not language dependent. They are dependent
on the speaker's voice.
Voice tags are sensitive to background noise. Record them
and make calls in a quiet environment.
When recording a voice tag or making a call by saying a
voice tag, make sure to speak clearly into the microphone.
Very short names are not accepted. Use long names and
avoid similar names for different numbers.
You must say the name exactly as you said it when you
recorded it. This may be difficult in, for example, a noisy
environment or during an emergency, so you should not
rely solely upon voice dialling in all circumstances.