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Glossary
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heavily to the Web, both for public Web sites and Intranets.
When a Java program runs from a Web page, it is called a
Java applet. When it is run on a mobile phone or pager, it is
called a MIDlet.
Line Identification Services (Caller ID)
Services allowing subscribers to view or block the telephone
numbers of callers.
Multiparty Calling
Ability to establish a conference call involving up to five
additional parties.
Phone Password
Security code used to unlock the phone when you have
selected the option to lock it automatically each time it
switches on.
PIN (Personal Identification Number)
Security code that protects the phone against unauthorized
use. The PIN is supplied by the service provider with the SIM
card. It may be a four to eight-digit number and can be
changed, as required.
PUK (PIN Unblocking Key)
Security code used to unlock the phone when an incorrect
PIN has been entered three times in succession. The eight-
digit number is supplied by the service provider with the SIM
card.
Roaming
Use of your phone when you are outside your home area
(when travelling for example).
SDN (Service Dialing Numbers)
Telephone numbers supplied by your network provider and
giving access to special services, such as voice mail,