White Paper
J300
49
July 2005
EFR
Enhanced Full Rate, speech coding.
EMS
Enhanced Messaging Service. Allows the user to
add simple pixel pictures and animations, sounds
and melodies to a text message. The EMS 3GPP
standard also includes text formatting.
ETSI
European Telecommunications Standards Institute
FR
Full Rate, speech coding.
Gateway
A WAP Gateway typically includes the following
functions:
•
A Protocol Gateway – the protocol gateway
translates requests from the WAP protocol
stack to the WWW protocol stack (http and
TCP/IP).
•
Content Encoders and Decoders – the content
encoders translate Web content into compact
encoded formats to reduce the size and number
of packets travelling over the wireless data net-
work.
GIF
Graphics Interchange Format
GPRS
General Packet Radio Services
GSM
Global System for Mobile Communications. GSM
is the world’s most widely-used digital mobile
phone system.
GSM system
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.
GSM 1800
Also known as DCS 1800 or PCN; this is a digital
network working on a frequency of 1800 MHz. It is
used in Europe and in the Asia-Pacific region.
HR
Half Rate, speech coding.
HSCSD
High Speed Circuit Switched Data
HTML
HyperText Markup Language
http
HyperText Transfer Protocol
ISP
Internet Service Provider
ITTP
Intelligent Terminal Transfer Protocol
LED
Light Emitting Diode
LAN
Local Area Network
LPC
Linear Predictive Coding
LTP
Long Term Predictor
MIDI
Musical Instrument Digital Interface
ME
Mobile Equipment
Micro browser
Accesses and displays Internet content in a mobile
phone, using small file sizes and the bandwidth of
the wireless-handheld network.