DDD meaning in Telecommunication ?

Answer: What is Direct Distance Dialing mean?

Direct distance dialing (DDD) is a telecommunication service feature in North America by which a caller may, without operator assistance, call any other user outside the local calling area. Direct dialing by subscribers typically requires extra digits to be dialed as prefixes to the directory telephone number of the destination. International Direct Distance Dialing (IDDD) extends the system beyond the geographic boundaries of the North American Numbering Plan (NANP).

reference

Full Form	Category
Danish Veterinary Association	Academic & Science
Den Danske Dyrlægeforening	Academic & Science
Deep Dark Depression	Academic & Science
Desired Delivery Date	Accounts and Finance
Chequemate International, Inc.	Business
Digital Design Derivation	Business
Delay, Deny, Deflect	Business
Design Develop Deploy	Business
Ddd Group	Business
3D Resources Ltd	Business
Direct Document Denotation	Community
Downtown Development District	Community
Devoted, Distinguished, Determined	Community
Downtown Development Districts	Community
Doing Development Differently	Community
Dimples Da Demon	Community
Dot Density Display	Computer Hardware
Data Display Debugger	Computing
Doocs Data Display	Computing
Digital Diagnostic Disk	Computing
Double Density Disk	Computing
Displays and Distributed Databases	Computing
Dsn Data Delivery	Computing
Dual Dynamic Drive	Computing
Dimension Driven Design	Computing
Data Driven Decision	Computing
Domain Driven Development	Computing
Dragon, Dice, and Dungeons	Computing
Database Driven Design	Computing
Scry.info	Cryptocurrency
Dirty Dragon Dishonor	General
Don's Door Data	General
Duckworth's Dargle Delight	General
Documentation, Diagnosis, and Design	General
Double Decker Disaster	General
Domain Driven Design	General
Dream Drop Distance	General
Defective Dependent Delinquent	General
Digital Dash Display	General
Doman Driven Design	General
Data Driven Discovery	General
Decoration Disorder Disconnection	General
Digital Divide Data	General
Dono Dedit Dedicavit	General
Digital Digital Digital	General
Discipline Determination Dedication	General
Diversity dependent diversification	General
Dawn Day Dusk	General
Developer Developer Developer	General
Different Dimension Deamon	General
Defined Daily Doses	General
Developers Developers Developers	General
Direct Deposit Date	General
Dumb, Dumb, and Dumber	General
Deciphering Developmental Disorders	General
Dynamic Data Day	General
DDD Deck Deck	General
Doomy Doomy Darkness	General
Domain Driven	General
Death Doesn't Discriminate	General
Drunk Driving Defence	General
Don't Drive Distracted	General
Debility, Dread, and Death	General
Driver Drowsiness Detection	General
Detroit Donut Destroyer	General
Distracted and Drowsy Driving	General
Deliberate Design Decision	General
Death Dung And Decay	General
Dada Disruptive Disorder	General
Dont Disappoint Decepticons	General
Dumb Dumber Dumbest	General
Department of Departments Department	Governmental
Division Of Developmental Disability	Governmental
DHONDHA DIH	Indian Railway Station
Dot Dot Dot	Maths
Degenerative Disc Disease	Medical
Defined Daily Dose	Medical
Division of Developmental Disabilities	Medical
Dual (the pacemaker, paces both the atrium and the ventricle) Dual (the pacemaker,senses both the atrium and the ventricle) Dual inhibited (what it does)	Medical
Division of Dermatology and Dentistry	Medical
Den Danske Dyrlaegeforening ( Danish Veterinary Association)	Medical
Developmental Disabilities Division	Medical
Drug Distribution Data	Medical
Daily Defined Dose	Medical
Dense Deposit Disease	Medical
Dorsal Dural Deficiency	Medical
Drug Design and Discovery	Medical
Direct Distance Dial	Military and Defence
Dynamic Distributed Data	Networking
Dynamic Digital Depth	Physics Related
Detailed Design Document	Softwares
Design Definition Document	Space Science
Display Decoder Drive	Space Science
Dance Dance Defenestration	Sports
Direct Distance Dialing	Telecommunication