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General Information
Operators & Subscription
To be able to use your phone, you need to have a sub-
scription to a network. This is obtained from the net-
work operator.
The services included in your subscription depend on
your choice of operator and/or subscription. Therefore,
some of the services and functions described in this
manual may not be accessible to you. If you want a
complete list of the services included in your subscrip-
tion, please contact your network operator.
GSM 900/1800 Dual Band
TheEricsson SH 888 is a dual band phone, which means
that you can use your phone in two different kinds of
networks – the GSM 900 and the GSM 1800 (also called
PCN or DCS 1800) systems.
The GSM 1800 system is practically the same as the
GSM 900 system. The difference between the two is
that they use different frequencies. GSM 900 uses 900
MHz frequency, whereas GSM 1800 uses 1800 MHz.
A dual band phone that combines the two standards
can use both frequencies. This considerably increases
capacity in densely populated urban areas, and conse-
quently improves the coverage offered by your
network operator. It will also offer you enhanced inter-
national roaming, thanks to the additional networks
now available when you are out travelling.
The switching between the two systems is done auto-
matically and seamlessly, which means that you can
use your phone without ever having to consider which
system is best at the time. This is taken care of by the
networks. However, you should note that the functions
offered and the network coverage differ depending on
your choice of operator and/or subscription.
SIM & PIN
You will obtain a SIM (Subscriber Identity Module) card
with your subscription. The SIM card contains a com-
puter chip that keeps track of your phone number, the
services you have ordered from your network operator
andyour Phone Book information, among other things.
Your SIM card is supplied with a security code or PIN
(Personal Identity Number), which you need in order to
gain access to the network. Your PIN may also be re-
quired when you want to change settings in your
phone. Furthermore, some operators may have
ser-vices that require a second PIN, your PIN2. You will
find your PIN (and PIN2) in the information from your
operator.
Every time you turn on your phone, it prompts you to
enter your PIN. If the PIN is entered incorrectly three
times in a row, the SIM card will be blocked. If this hap-
pens you can unlock it by using your PUK (Personal Un-
blocking Key code), which you also get from your op-
erator.
You should be careful with your PIN, since it is your pro-
tection against unauthorized use of your phone and
subscription.
2 Press to enter the menu system. See inside the cover.