Meaning of DIRECT DIALLING in English

DIRECT DIALLING

( BrE ) ( NAmE diˌrect ˈdialing ) noun

[ U ] the ability to make telephone calls without needing to be connected by the operator :

All our rooms have direct dialling telephones.

Oxford Advanced Learner's English Dictionary.      Оксфордский английский словарь для изучающик язык на продвинутом уровне.