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A B C D E F G H I J L M N O P Q R S T U V W X _

Glossary search:

TermDescription

D-AMPS

D-AMPS - Digital AMPS, a US wireless standard also known as IS-136

D/A

D/A - Digital to Analogue conversion

DAC

DAC - Digital to Analogue Convertor

DAMA

DAMA - Demand Assigned Multiple Access

DAN

DAN - DECT Access Node

Data capable

Data capable - Mobile phones which have the capability to enable transmission of data from a laptop computer or PDA via the phone

DB

DB - Dummy Burst; transmitted as a filler in unused timeslots of the carrier

DCA

DCA - Dynamic Channel Assignment

DCCH

DCCH - Dedicated Control Channels; responsible for roaming, handovers, encryption etc. (See SDCCH, SACCH and FACCH)

DCE

DCE - Data Communications Equipment

DCH

DCH - Data Clearing House

DCPSK

DCPSK - Differentially Coherent Phase Shift Keying

DCS1800

DCS1800 - Digital Cellular System at 1800MHz, now known as GSM1800

DECT

DECT - Digitally Enhanced Cordless Telecommunications system, a second generation digital cordless technology standardised by ETSI

DEPSK

DEPSK - Differential Encoded Phase Shift Keying

DES

DES - Digital Encryption Standard

DFSK

DFSK - Double Frequency Shift Keying

Digital

Digital - a method of representing information as numbers with discrete values; usually expressed as a sequence of bits

DPCM

DPCM - Differential Pulse Code Modulation

DPSK

DPSK - Digital Phase Shift Keying

DQPSK

DQPSK - Digital Quadrature Phase Shift Keying

DS-CDMA

DS-CDMA - Direct Sequence CDMA

DSP

DSP - Digital Signal Processing

DSRR

DSRR - Digital Short Range Radio; a UK standard for a low power, short range radio system designed for small voice and data networks

DTE

DTE - Data Terminal Equipment

DTMF

DTMF - Dual Tone MultiFrequency; better know as Touch Tone. The tones generated by touching the keys on the phone are used for a variety of purposes including voice mail systems and voice messaging

DTX

DTX - Discontinuous Transmission

Dual Band

Dual Band - The capability of GSM infrastructure elements and handsets to work across both the 900MHz and 1800MHz bands. The capability to seamlessly handover between the two bands offers operators major capacity gains

Dual-band

Dual-band - Phones that can switch between two different bands of frequencies.In Europe Dual-band usually means GSM900/GSM1800 capable phone, while in USA it might mean GSM850/GSM1900 or combination of two other bands.

Duplex

Duplex - The wireless technique where one frequency band is used for traffic from the network to the subscriber (the downlink) and another, widely separated, band is used for traffic from the subscriber to the network (the uplink)

 

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