noun
Meaning 1
A system of automatic connection of trunk calls through dialling a phone number without operator assistance.
Definition source: English Wiktionary via Wiktextract
Usage: UK, uncountable
Topics: communications, electrical-engineering, engineering, natural-sciences, physical-sciences, telecommunications, telephony
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: STD
Antonyms: none provided