subscriber trunk dialling


Also found in: Thesaurus, Medical, Financial, Encyclopedia, Wikipedia.

subscriber trunk dialling

n
(Telecommunications) Brit a service by which telephone subscribers can obtain trunk calls by dialling direct without the aid of an operator. Abbreviation: STD US and Canadian equivalent: direct distance dialing
Translations

subscriber trunk dialling

nteleselezione f
References in periodicals archive ?
Numbers were stretched again with the introduction of STD - Subscriber Trunk Dialling - which allowed you to dial trunk calls without the assistance of an operator.
"At first there was no STD (subscriber trunk dialling), or direct international dialling without an operator.
He explained how that evolved to subscriber trunk dialling, which allowed people to call the person they wanted to speak to directly.