Sony Ericsson K220 White Paper page 37

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.
HR
Half Rate, speech coding
HSCSD
High Speed Circuit Switched Data
HTML
HyperText Markup Language
HTTP
HyperText Transfer Protocol
IETF
Internet Engineering Task Force
JPEG
Joint Photographic Experts Group, best known for
the JPG format for still image compression.
MIDI
Musical Instrument Digital Interface
ME
Mobile Equipment (phone excluding SIM card)
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 and images to be combined into multimedia
messages.
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.
ODI
Object Distribution Indicator. Part of EMS release
5, ODI is a mechanism for controlling distribution of
content (pictures, melodies etc.) within short mes-
sages.
OMA
Open Mobile Alliance, promotes interoperability
and a wireless standard for delivering email,
textbased Web pages and data to mobile phones,
PDAs, pagers and other mobile terminals.
OTA
Over-the Air Configuration. To provide settings for
the phone by sending a text message using SMS,
over the network to the phone. This reduces the
need for the user to configure the phone manually.
PDA
Personal Digital Assistant
PDP
Packet Data Protocol
PIM
Personal Information Management. Generic term
for applications such as Contacts, Calendar, Tasks
etc.
SI
Service Indication
SL
Service Loading
SIM card
Subscriber Identity Module card – a card that must
be inserted in any GSM-based mobile phone. It
contains subscriber details, security information
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White paper K220
February 2007