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Glossary
174
Because EMS is based on SMS, it can use SMS
centres the same way that SMS does. EMS works on
all Global System for Mobile communications (GSM)
networks. EMS senders can use text, melodies,
pictures, sounds, and animated images to enhance
the expressive power of messages that are
otherwise limited by the display constraints of
mobile devices.
GPRS (General packet radio service)
New non-voice, value-added service that allows
information to be sent and received across a mobile
telephone network. GPRS provides continuous
connection to the Internet for mobile phone and
computer users. It is based on the Global System
for Mobile Communication (GSM) circuit-switched
cellular phone connections and the Short Message
Service (SMS).
GSM (Global system for mobile
communication)
International standard for cellular communication,
guaranteeing compatibility between the various
network operators. GSM covers most European
countries and many other parts of the world.
Glossary
175
Java
Programming language generating applications that
can run on all hardware platforms, whether small,
medium, or large, without modification. It has been
promoted for and geared 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.
MMS (Multimedia message service)
A message service for the mobile environment,
standardized by the WAP Forum and the 3rd
Generation Partnership Program (3GPP). For phone
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 be sent by
e-mail. In addition to the text content of SMS, MMS
messages can contain still images, voice or audio
clips, and also video clips and presentation
information.
Multi-party 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.