By means of telegraphy. / In the concise style of a telegraph.

telegraphic

A pole, usually wooden, that carries telephone lines above a street.

A telegraph post

A wire strung between two locations allowing telegraphic communication between them.

plural of telegraph post

Alternative spelling of bush telegraph

(idiomatic) A system used by undeveloped societies in remote regions for communication over long distances, such as drum sounds, word-of-mouth relay, or smoke signals. / (idiomatic) A gossip network.

(idiomatic) A system used by primitive cultures in remote tropical regions for communication over long distances, such as drum sounds or a relay of runners.

plural of bush telegraph