185
What is a SIM card?
Subscriber Identity Module or SIM is the little gold-plated
plastic card that you get from O
2
and which holds the
unique data the network needs to identify your mobile.
What is PIN* and what is PUK?
Access to use a mobile is most often protected by a code
known as ‘PIN’ – Personal Identification Number. Your SIM
card comes with a default PIN that you can change to any
code you prefer. See page 177 for details. If you forget
your code, or by mistake enter a faulty code three times in
a row, the SIM card will lock. To unlock, you must enter the
Personal Unblocking Key or ‘PUK’ code which you can get
from O
2
Customer Service.
What is PIN2?
PIN2 is a security code that you can obtain by calling
O
2
Customer Service.
What does that mean?
184
What is 3G?
3G* is the next generation of mobile networks, providing
video calling, browsing and download speeds up to 7 times
faster than GPRS.
What does 3G allow me to do?
3G customers will be able to access all services, applications
and content that we currently offer, within a faster and
richer experience.
3G handsets will enjoy faster browsing and downloads
with a selection of unique content, such as exclusive
interactive games, high speed film and music clips.
What is roaming?
Roaming allows you to move from one base station (cell)
to another or from one network to another without
affecting the call.
* Pay & Go mobiles are not set up with a default PIN code.* 3G is subject to a 3G handset and 3G coverage.
Don’t panic
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