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110 Glossary
PIN
Personal Identification Number – a code used for all GSM-based phones to
establish authorization for access to certain functions or information. The PIN
code comes with your subscription.
PIN2
Personal Identification Number 2 – an authorization code which is used only
for special services.
PUK
Personal Unblocking Code – used to unlock a blocked SIM card. This comes
with your subscription.
Push-To-Talk Mode
When the phone is set to Push-To-Talk mode, all calls are carried out in semi-
duplex. This means that the microphone is muted until the user presses a
“Push-To-Talk” button. This is a useful function to avoid disturbing back-
ground noise during a group call.
Roaming
Within your home network, this means that your mobile phone automatically
sets up communication procedures with different radio base stations when on
the move.
Semi-Duplex
In handsfree equipment, full duplex means that the connection is open for
both parties to talk simultaneously. The opposite, simplex, is when it is open
to one at a time. Semi-duplex gives close to, but not complete, duplex
functionality.
Service Provider
a company that provides services and subscriptions to mobile phone users.
Short Message Service
(or SMS) allows messages of up to 160 characters to be sent and received via
the network operator's message centre to your mobile phone. Messages are
stored if the phone is off or out of reach ensuring that they reach you. To use
this service, it must be supported by your network.
Scroll
pressing the left or right arrow key to move between the menus.
Select
scrolling to a menu then pressing the
YES
key on the phone.