ERI
E
R
I
nhanced
oaming
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
Ev
D
O
olution
ata
nly 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
G
P
S
lobal
ositioning
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.
176
Glossary
ndicator is a
ystem is a system of
NAM
N
A
umber
ssignment
phone stores the phone number and its
electronic serial number.
SSL
S
S
L
ecure
ockets
ayer Protocol used to
encrypt data sent over the air.
TTY
T
ty
ele
pewriter. An electromechanical
typewriter that either transmits or
receives messages coded in electrical
signals. A phone with TTY support is able
to translate typed characters to voice or
translate voice into characters to display
on the TTY.
M
odule is how the