DA Data Acquisition

DAB Digital Audio Broadcasting (digital FM)

D-AMPS Digital AMPS (USA)

DBB Distributive Broad Band

DCCH Dedicated Control Channel

DCD Data Carrier Detect

DCE Data Communication Equipment

DCF Data Communication Function

D-Channel ISDN Customers Signalling Channel

DCN Data Communications Network

DCPN Domestic Customer Premises Network

DCS Digital Communication System

DCS Digital Cordless System

DDCH Dedicated Channel

DDP Datagram Delivery Protocol

DDS Direct Digital Service

DEQUAM Differentially Encoded Quadrature Amplitude Modulation

DFSM Dispersion Fattened Single Mode

DGT Direction Générale des Télécommunications

DHCP Dynamic Host Configuration Protocol

DHR Digital High Resolution

DHTML Dynamic Hyper Text Markup Language

DIDON Diffusion de Données

DIODE Diffusion d'Informations Obtenues sur DEmande

DLCI Data Link Connection Identifier

DM Delta Modulation

DMSU Digital Main Switching Unit

DN Dedicated Network

DP Détection de Porteuse

DQPSK Differential Quartenary Phase Shift Keying

DRF Digital Raster File

DS Digital Signatures

DS Direct Sequence

DSL Digital Subscriber Line

DSLAM Digital Subscriber Line Access Multiplexor

DSRR Digital Short Range Radio (EU, digital CB)

DSVD Digital Simultaneous Voice and Data

DTAP Direct Transfer Application Part

DTD Document Type Definition

DTE Data Terminal Equipment

DTMF Dual Tone Multi-Frequency

DTR Data Terminal Ready

DVI Direct Voice Input

DXF Digital Exchange Format