e/Director telephone system

Information
has gloss	eng: The Director System was a system which made it possible to call subscribers at other telephone exchanges without operator intervention in large multi-exchange cities. It was introduced to six cities in the UK from 1927, starting with London, following the introduction of the automatic telephone exchange in the UK in 1912.
lexicalization	eng: Director telephone system
instance of	(noun) a workplace that serves as a telecommunications facility where lines from telephones can be connected together to permit communication central, telephone exchange, exchange