TelAutography Teletype network Teletyping Wirephoto cable closed-circuit telegraphy code communication communicational communications duplex telegraphy electricity facsimile facsimile telegraph flash interrupter key magnetotelephonic microtelephonic monotelephonic multiplex telegraphy news ticker phototelegraphic quadruplex telegraphy radio radiotelegraphic railroad telegraphy receiver send a wire sender sign off sign on signal simplex telegraphy single-current telegraphy sounder stock ticker submarine telegraphy telecommunicational telegram telegraph telegraphic telegraphics telegraphy telephonic telephotographic teleprinter teletypewriter teletypewriting telex thermotelephonic ticker transmitter typotelegraph typotelegraphy wire wire service wireless