PUK (PIN Unblocking Key)
Security code used to unlock the phone when an incorrect PIN has been entered three times in succession. The
Roaming
Use of your phone when you are outside your home area (when traveling for example).
SIM (Subscriber Identification Module)
Card containing a chip with all the information required to operate the phone (network and memory information, as well as the subscriber’s personal data).
The SIM card fits into a small slot on the back of the phone and is protected by the battery.
SMS (Short Message Service)
Network service sending and receiving messages to and from another subscriber without having to speak to the correspondent. The message created or received can be displayed, received, edited or sent.
Soft Keys
Two keys marked on the phone, that:
•vary according to the function that you are currently
Glossary 
using;
•are indicated on the bottom line of the display just above the corresponding key.
Voice Mail
Computerized answering service that automatically answers your calls when you are not available, plays a greeting (optionally in your own voice) and records a
message.
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