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Glossary (Continued)
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 tThe 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 will also be heard by the party on
the other line if you use the Scratchpad while a call is in
progress. Synonymous with Scratchpad tones.
F
fringe area The outermost range of a cellular system
where cellular signals are weak.
function keys The seven 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. See also non-home type
system, and system type.
I
indicator A light on your phone that gives you
information about your phone’s status.
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