Sony Ericsson Walkman W580c, White Paper

Page: 54 / 58

White paper W580
54 June 2008
GSM
Global System for Mobile Communications. GSM
is the world’s most widely-used digital mobile
phone system, now operating in over 100 countries
around the world, particularly in Europe and Asia-
Pacific.
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
JPEG
Joint photographer expert group
LED
Light Emitting Diode
MIDI
Musical Instrument Digital Interface
ME
Mobile Equipment
MIME
Multipurpose Internet Mail Extensions.
MMI
Man-Machine Interface. See UI.
MP3
Short for “MPEG-1 layer 3”, an effective audio cod-
ing scheme.
MPEG4/MPG4
MPEG-4 extends the earlier MPEG-1 and MPEG-2
algorithms with synthesis of speech and video,
fractal compression, computer visualisation and
artificial intelligence-based image processing tech-
niques.
MS
Mobile Station
MT
Mobile Termination
ODI
Object Distribution Indicator
OMA
Open Mobile Alliance
OTA
Over-the Air Configuration. To provide settings for
the phone by way of sending an SMS message
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
PNG
Portable Network Graphic