中継交換機

ちゅうけいこうかんき

noun

•

toll switch, TS, trunk exchange(computer term)

中	in, inside, middle, mean, center
継	inherit, succeed, continue, patch, graft (tree)
交	mingle, mixing, association, coming & going
換	interchange, period, change, convert, replace, renew
機	loom, mechanism, machine, airplane, opportunity, potency, efficacy, occasion