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DTMF
- (Dual-tone Modulated 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.
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 also 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.