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Prepend
- The addition of a prefix, such as an area
code, to a phone number.
RF
- Radio Frequency
Roaming
- The ability to use a wireless phone to
make and receive calls in places outside of the home
service area.
Service Charge
- The amount paid each month to
receive wireless service.
Standby Time
- The amount of time a fully charged
wireless portable or transportable phone can be on
and idle without being in use. (See Talk Time)
Talk Time
- The length of time a person can talk on a
portable or transportable wireless phone without
recharging the battery.
Vocoder
- Voice Coder. A device used to convert
speech into digital signals.
Wireless
- Radio-based Systems that allow
transmission of telephone or data signals through the
air without a physical connection, such as a metal wire
(copper) or fiber optic cable.
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DTMF
- (Dual-tone Multi-Frequency ) You send DTMF
signals when you enter numbers by pressing the digit
keys.
EVRC
- (Enhanced Variable Rate Codec) EVRC is a new
global standard for compressing and decompressing
voice signals. EVRC uses a lower bit rate (the number
of bits sent per second) than existing CDMA vocoders,
while providing significant improvements in voice
quality. This technology enables your phone to provide
superb voice quality while benefiting from the ability
to process more cellular voice calls using less
bandwidth than the voice codecs in CDMA networks
today.
Frequency
- A measure based on time, as one or
more waves per second, in an electrical or light wave
information signal. A signal’s frequency is stated in
cycles-per-second or Hertz (Hz).
Hands-Free
- A feature that permits a driver to use a
wireless phone without lifting or holding the handset -
an important safety feature for automobiles, tractors
and most other motorized vehicles.
LCD
- (Liquid Crystal Display) Commonly used to refer
to the screen display on the wireless phone.
LED
- (Light Emitting Diode) Commonly used to refer to
a small light on the wireless phone or on the Desktop
Charger. The LED lights on the phone to indicate an
incoming call. The lights on the charger indicate that
battery charging is taking place.
