White paper
W205
38
April 2009
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 that enables
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
4.3, ODI is a mechanism for controlling distribution
of content (pictures, melodies etc.) within short
messages
OMA
Open Mobile Alliance. Promotes interoperability
and a wireless standard for delivering email, text-
based Web pages and data to mobile phones,
PDAs, pagers and other mobile terminals
OTA
Over-the Air Configuration. Provides 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 and
Tasks
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
