White paper
S312
45
September 2009
GIF
Graphics Interchange Format. Format for storing
images which also supports animated images.
Highly compressed by limiting the colour palette to
16 or 256 colours.
GPRS
General Packet Radio Services
GSM
Global System for Mobile Communications. The
GSM system family includes GSM 850, GSM 900,
GSM 1800 and GSM 1900. There are different
phases of roll-out for the GSM system and GSM
phones are either phase 1 or phase 2 compliant.
HR
Half Rate, speech coding.
HSCSD
High Speed Circuit Switched Data
HTML
HyperText Markup Language
HTTP
HyperText Transfer Protocol
IMAP
Internet Message Access Protocol. It is a method
of accessing email or bulletin board messages that
are kept on a mail server. IMAP Idle is an optional
expansion of the IMAP email protocol that allows
the server to send new message updates to the
client in real time.
JPEG
Joint Photographic Experts Group, best known for
the JPG format for still image compression.
MIDI
Musical Instrument Digital Interface
MIDP
Mobile Information Device Profile
ME
Mobile Equipment (phone excluding SIM card)
MMAPI
Mobile Media Application Programming Interface
MMI
Man-Machine Interface. Same as User Interface
(UI).
MMS
Multimedia Messaging Service. Logical extension
of SMS and EMS, MMS defines a service enabling
sound, images and video to be combined into
multimedia messages.
MP3
MPEG-1 layer 3, an effective audio coding scheme.
MPEG
Moving Picture Experts Group. A working group of
ISO/IEC in charge of the development of standards
for coded representation of digital audio and video.
MT
Mobile Termination
ODI
Object Distribution Indicator. Part of EMS release
5, ODI is a mechanism for controlling distribution of
contents (pictures, melodies etc.) within short
messages.
OMA
Open Mobile Alliance. It promotes interoperability
and a wireless standard for delivering email,
textbased Web pages and data to mobile phones,
PDAs, pagers and other mobile terminals. OMA
email enables the mobile email client to be notified
of a new email using mobile network protocols.
