noun
message switching
A computing term for a data communication method where messages are routed as whole units through a network, as opposed to circuit switching or packet switching.
メッセージ交換方式は、かつてのテレックスなどで使われていた。
Message switching was used in older systems like telex.
Compound of メッセージ (message) and 交換 (exchange, switching). A technical calque from English 'message switching'.