Direct Distance Dialing

   (DDD)
   Automatically establishes toll calls in response to signals from the calling device of the originating customer without telephone company operator intervention.

IT glossary of terms, acronyms and abbreviations. . 2015.

Look at other dictionaries:

  • Direct distance dialing — (DDD) or direct dial is a telecommunications term for a network provided service feature in which a call originator may, without operator assistance, call any other user outside the local calling area. DDD requires more digits in the number… …   Wikipedia

  • direct distance dialing — noun : the dialing of a telephone number outside the local calling area by using initial code numbers to make a direct connection abbr. DDD * * * a telephone network service feature enabling customers to direct dial their long distance calls. * * …   Useful english dictionary

  • direct distance dialing — a telephone network service feature enabling customers to direct dial their long distance calls. * * * …   Universalium

  • direct distance dialing —    Abbreviated DDD. Use of the normal long distance telephone system without the need for the intervention of an operator …   Dictionary of networking

  • direct-dial — /di rekt duy euhl, duyl , duy /, v.i., v.t. 1. to make a telephone call outside the local area without the assistance of an operator. adj. 2. being a telephone or telephone system enabling long distance calls to be direct dialed. 3. of or… …   Universalium

  • direct-dial — /di rekt duy euhl, duyl , duy /, v.i., v.t. 1. to make a telephone call outside the local area without the assistance of an operator. adj. 2. being a telephone or telephone system enabling long distance calls to be direct dialed. 3. of or… …   Useful english dictionary

  • Long distance — in telecommunications, refers to telephone calls made outside a certain area, usually characterized by an area code outside of a local call area (known in the United States as a local access and transport area or LATA). Long distance calls… …   Wikipedia

  • long distance — Synonyms and related words: DDD, PBX operator, apart, asunder, at a distance, away, busy signal, buzz, call, central, dial tone, direct distance dialing, distal, distant, exotic, far, far off, faraway, local call, long distance call, long range,… …   Moby Thesaurus

  • subscriber trunk dialing —    A non American term for direct distance dialing …   IT glossary of terms, acronyms and abbreviations

  • DDD — • direct distance dialing …   Maritime acronyms and abbreviations

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