User's Manual

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Appendix 3 Abbreviations and explanation
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 Dial Numbers
SIM Subscriber Identity Module
PC Personal Computer
PIN Personal Identification Number 1, provided with SIM
card, is the password to activate SIM card.
PIN2 Personal Identification Number 2, provided by the
network provider for certain SIM card features
(FDN,etc.)
PUK Personal Unblocking Key，provided with the SIM