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Glossary
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SDN (Service Dialling Numbers)
Telephone numbers supplied by your network
provider and giving access to special services, such
as voice mail, directory inquiries, customer support
and emergency services.
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 and on the phone, the
purpose of which:
• varies according to the function that you are
currently using
• is indicated on the bottom line of the display just
above the corresponding key
Voice mail
Computerised answering service that automatically
answers your calls when you are not available,
plays a greeting (optionally in your own voice) and
records a message.