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Line Identification Services
(Caller ID)
Service allowing subscribers to view or block
the telephone numbers of callers.
Conference Calls
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.
Roaming
Use of your phone when you are outside your
home area (for example, when traveling).
SDN (Service Dial Number)
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 Card
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
text messages to and from another
subscriber, without the need to speak to
the correspondent. The message created or
received (up to 160 characters long) can be
displayed, received, edited, or sent.
Glossary