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VX8300 117
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DTMF Dual-Tone Multi Frequency (or “touch-tone”)
is a method used to communicate keys
pressed on the phone. Pressing a key
generates two simultaneous tones, one for
the row and one for the column to determine
which key was pressed.
EMS Enhanced Messaging Service is an
extension to SMS for cellular phones
available on specific networks. An EMS
enabled phone can send and receive
messages with special text formatting (such
as bold or italic), animations, pictures, icons,
sound effects, and special ring tones. EMS
messages sent to non-EMS devices will be
displayed as SMS transmissions.
ERI Enhanced Roaming Indicator is a feature to
indicate whether a mobile phone is on its
home system, a partner network, or a
roaming network. Many phones indicate
home vs. roaming as an icon, but ERI capable
phones can clearly indicate third “partner
network” status.
EVDO Evolution Data Only or Evolution Data
Optimized (abbreviated as EVDO, EV-DO,
EvDO, 1xEV-DO or 1xEvDO) provides fast
wireless broadband access (3G) anywhere,
without needing a WiFi hotspot.
GPS Global Positioning System is a system of
satellites, computers, and receivers able to
determine the latitude and longitude of a
specific receiver on Earth. Position is
calculated using time and distance.
IS 2000 Type of digital signaling. It's the second
generation of CDMA digital cellular, an
extension of IS-95. Differences between
signaling types have to do with pilot signal
and links to provide more traffic channels,
and control protocols.
NAM Number Assignment Module is how the
phone stores the phone number and its
electronic serial number. A multiple NAM
phone can register with multiple service
providers and be set to automatically switch
between programmed phone numbers for
service provider areas.
VX8300_2(E)_Rev1.3.qxd 2006.10.18 10:31 AM Page 117