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EDGE - Enhanced Data rates for GSM Evolution
EDGE Enhanced Data rates for GSM Evolution (EDGE) or Enhanced GPRS (EGPRS), is a digital mobile phone technology that allows for increased data transmission rate and improved data transmission reliability. It is generally classified as a 2.75G network technology. EDGE has been introduced into GSM networks around the world since 2003, initially in North America.

It can be used for any packet switched applications such as an Internet connection. High-speed data applications such as video services and other multimedia benefit from EGPRS' increased data capacity. EDGE Circuit Switched is a possible future development.



EEPROM - Electrically Erasable Programmable Read Only Memory

EFR- Enhanced Full Rate
(Enhanced Full Rate (codec): an improved version of the standard voice codec used in GSM phones; offers improved speech quality without impacting on network capacity)

EFT - Electronic Funds Transfer

EGSM - Extended (frequency range) GSM

EIR - Equipment Identity Register (a database that contains a list of all valid mobile stations within a network based on their IMEI)

EIRP - Effective Isotropic Radiated Power

EPOC :
The mobile phone operating system developed by Symbian. Derived from epoch-the beginning of an era-EPOC is a 32-bit operating environment which comprises a suite of applications, customisable user interfaces, connectivity options and a range of development tools

EPROM - Erasable Programmable Read Only Memory

Erlang:
A dimensionless unit of average traffic density in a telecommunications network

ERMES - Enhanced Radio Messaging System
(IT is a paging technology developed by ETSI which was intended to allow users to roam throughout Europe. Adopted by a number of European and Middle Eastern countries, ERMES, like paging in general, was overtaken by the ubiquity of GSM)

ERO - European Radiocommunications Office

ERP - Effective Radiated Power

ESMR - Enhanced Special Mobile Radio; a US PMR variant (see SMR)

ESN - Electronic Serial Number; a 32-bit number that uniquely identifies a mobile phone

ESPRIT - European Strategic Programme for Research and Development in Information Technology

ETACS
Extended TACS (the extension of TACS by the addition of new frequencies)

ETS - European Telecommunications Standard

ETSI - European Telecommunications Standards Institute: The European group responsible for defining telecommunications standards
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