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D
DTMF tones See Dual Tone Multi-Frequency tones.
default A feature’s original setting as pre-programmed in the factory.
Dual Tone Multi-Frequency tones The tones that your telephone
transmits when you press a key on the keypad. These tones are used to
access automated calling systems such as Voice Mail, paging
services, banking-by-phone, etc. These tones are also heard by the
party on the other line if you use the Scratchpad while a call is in
progress. Synonymous with Scratchpad tones or touch tones.
E
emergency call This feature allows you to make an emergency call
even if your phone is locked, by dialing 911 or another emergency
access number.
F
fringe area The outermost range of a cellular system where signals are
weak.
function keys The non-numeric keys on your phone’s keypad used to
perform specific tasks.
H
home system The local cellular system where you obtain your cellular
service.
home type system A cellular system of the same type as your local
cellular system.
I
icon One of the variety of symbols used to designate menu features
and messages.
indicator A light on your phone that gives you information about your
phone’s status.
Internal Charger A charger built into your phone for use with an AC
adapter or vehicle power adapter. See “Using the Internal Charger” on
page 23.
K
Keypad Tones The sounds produced through your phone’s speaker
when you press the keys. See “Turning Keypad Tones On and Off” on
page 80.
TDMA.book Page 123 Tuesday, November 2, 1999 9:54 AM