D-G
DIGITAL CASH
Generic term for new types of electronic currency being used over the
Internet. Digital cash makes possible transactions between two parties through
electronic communication only, thereby bypassing the need to actually
exchange true money. As a result, product and service purchases become
possible via the mobile phone without requiring cash or credit card.
EPOC TERMINAL
An operating system that turns voice-oriented handsets into Mediaphones and
Wireless Information Devices. EPOC places a lighter load on the processor
compared to present PDA operating systems and thus has the capacity to
enhance the multimedia capacity of mobile phones. EPOC is being developed
by Symbian, a joint company of Psion, Nokia, Ericsson, Motorola and
Matsushita (Panasonic). It constitutes an open platform optimised for mobile
phone use.
ETSI
European Telecommunication Standards Institute. ETSI is a European
organisation corresponding to the Japanese ARIB under joint Japan-Europe
activities related to WCDMA-DS, and plays a major role in 3G standardisation
efforts.
FDD
Frequency Division Duplex. Radio technology using a paired spectrum. Used
in cellular communication systems such as GSM; also applied under UMTS.
GGSN
Gateway GPRS Support Node. A gateway from a cellular network to an IP
network.
GIF
The GIF (Graphics Interchange Format) file format was developed in 1987 by
Compuserve Inc. primarily for the serial transmission of graphic images via a
modem. GIF has become widely supported on a variety of platforms. It is
standard for almost all Internet browsers and there is a high likelihood that it
will be adopted by WAP browsers as well. The three advantages which make
this format so powerful are (i) an interlacing function enabling rapid image
recognition, (ii) transparency enabling fusion of image and background, and
(iii) animation enabling timed /Sequential loop image display.
GPRS
General Packet Radio System. GPRS will provide packet switched data
primarily for GSM based 2G networks. GPRS network elements consists of two
main elements: SGSN (Service GPRS Support Node) and GGSN (Gateway
GPRS Support Node).
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