Subscriber Identity Module. Removable smart card used in a mobile
SIM
phone or datacard to hold network security data, identify the owner
and store personal information.
Wireless connection between the mobile device and the fixed base
Uplink
station.
Wideband Code Division Multiple Access. Fundamental technology for
WCDMA
3G networks used in Europe and the rest of the world.
Wi‐Fi
Wireless technology to provide a local data connection between
electronic products.
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