Microwave Radio Communications LLC NST2G7G Manuale Utente

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 User Guide and Technical Manual
A SIM card contains:
•  its unique serial number [ICC ID] 
•  International Mobile Subscriber Identity [IMSI] 
•  security authentication and ciphering information 
•  temporary information related to the local network 
•  a list of the services the user has access to 
•  two passwords: a personal identifi cation number [PIN] for ordinary use and a   
 
personal unblocking code [PUK] for PIN unlocking 
The primary advantage of cellular wireless data is that you have access to the Internet 
from any location, indoors or outdoors, throughout your carrier’s data coverage area. A 
disadvantage – as is prevalent with cellular telephones – is that cellular coverage can 
be attenuated in remote areas.
Figure A-6:  SIM Card Sizes