Meaning of subscriber trunk dialling | Babel Free

Definitions

A system of automatic connection of trunk calls through dialling a phone number without operator assistance.

UK, uncountable

Examples

“This NER microwave radio telephone link will bring subscriber trunk dialling facilities to no fewer than 3,000 railway telephones at York, Newcastle, Darlington, Middlesbrough and Leeds and points as far north as Berwick-upon-Tweed.”

CEFR level