Nokia E66 - Terminology

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users who do not observe the previous suggestions or use
the mobile phone improperly.
Note: Please return the dated or wasted lithium batteries to
the designated spot or Shanghai Innovatech. Do not throw
them into dustbins.
7.3 Terminology
GSM：Global System for Mobile Communications
GPRS：General Packet Radio Service
SMS：Short Message Service
SMS-CB：Short Message Service - Cell Broadcast
WAP：Wireless Application Protocol
FDN：Fixed Dialler Number
SIM：Subscriber Identity Module
PC：Personal Computer
PIN：Personal identification number. It refers normally to PIN1.
It is provided together with the SIM card. It is the
password to activate the SIM card.
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PIN2：Personal identification number 2. It is provided by the
network service provider. It is used when a special
function is implemented, for example, FDN to be
supported by the SIM card.
PUK：Personal Unlock Key. It is provided together with the
SIM card.When you enter a wrong PIN code for three
consecutive times, the SIM card will be locked. The
PUK code is used for unlocking the SIM card or modify
the PIN code.
PUK2：Personal Unlock Key 2. It is provided together with the
specific SIM card. It is used to modify or activate the
PIN2 code.
IMEI：International Mobile Equipment Identity. It is formed
with 15 digits. One mobile phone corresponds to one
unique IMEI code.