| Term | Description |
EDGE | EDGE - Enhanced Data rates for Global Evolution. A technology being promoted by the TDMA and GSM communities that is capable of both voice and 3G data rates up to 384 Kbps. The standard is based on GSM standard and uses TDMA multiplexing technology.
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EEPROM | EEPROM - Electrically Erasable Programmable Read Only Memory
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EFR | EFR - Enhanced Full Rate; a alternative voice codec that provides improved voice quality in a GSM network (see codec)
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EFT | EFT - Electronic Funds Transfer
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EGSM | EGSM - Extended (frequency range) GSM
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EIR | EIR - Equipment Identity Register; a database that contains a list of all valid mobile stations within a network based on their IMEI
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EIRP | EIRP - Effective Isotropic Radiated Power
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EMS | EMS - Enhanced Message Service. An extension of SMS that enables the sending of a combination of simple melodies, images, sounds, animations and formatted text as a message to another EMS-compatible phone
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END | END - The key on a cellular phone which is pressed to terminate a call
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EPOC | 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
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EPROM | EPROM - Erasable Programmable Read Only Memory
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Erlang | Erlang - A dimensionless unit of average traffic density in a telecommunications network
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ERMES | ERMES - Enhanced Radio Messaging System; 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
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ERO | ERO - European Radiocommunications Office
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ERP | ERP - Effective Radiated Power
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ESMR | ESMR - Enhanced Special Mobile Radio; a US PMR variant (see SMR)
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ESN | ESN - Electronic Serial Number; a 32-bit number that uniquely identifies a mobile phone
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ESPRIT | ESPRIT - European Strategic Programme for Research and Development in Information Technology
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ETACS | ETACS - Extended TACS; the extension of TACS by the addition of new frequencies
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ETS | ETS - European Telecommunications Standard
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ETSI | ETSI - European Telecommunications Standards Institute: The European group responsible for defining telecommunications standards
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