a service for the transmission of information by telegraphy Examples of telegraph services: telegram service, radiotelegram service, facsimile service, phototelegraphy service, telex service and leased telegraph circuit service. Found on http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=721-01-13
a service for the transmission of information by telegraphy Examples of telegraph services: telegram service, radiotelegram service, facsimile service, phototelegraphy service, telex service and leased telegraph circuit service.