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Glossary
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users, MMS is similar to Short Message Service
(SMS)-it provides automatic, immediate delivery of
user-created content from phone to phone. The
message addressing used is primarily phone
numbers, thus the traffic goes from phone to
phone. MMS also provides support for e-mail
addressing, so that messages can also be sent by
e-mail. In addition to the text content of SMS, MMS
messages can contain still images, voice or audio
clips, and later also video clips and presentation
information.
Multiparty calling
Ability to establish a conference call involving up to
five additional parties.
PIN (Personal Identification Number)
Security code that protects the phone/SIM against
unauthorised 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).