中ちゅう継けい交こう換かん機き

noun

toll switch; trunk exchange

Telecommunications term for a switch that connects trunks between exchanges. Abbreviated as TS.

• 中ちゅう継けい交こう換かん機きは電でん話わ網もうの重じゅう要ような構こう成せい要よう素そです。

  A toll switch is an important component of the telephone network.