In 1861 it opened the first transcontinental telegraph. Communication improved with the invention of the telegraph, telephone, radio and television. The decibel originates from methods used to quantify signal loss in telegraph and telephone circuits. Systems also exist for transmission using Morse code over telegraph or radio. Semaphore lines were a precursor of the electrical telegraph. France was slow to adopt the electrical telegraph. "Telegraph & Telephone Journal" XVII. Russian DFW has its own newspaper, "The Dallas Telegraph". The Belfast Telegraph and the Ireland Funds. It received coverage in "The Telegraph" and other British media. Muggeridge also acted as Washington correspondent for "The Daily Telegraph". This hypothesis was reported by Robert Matthews, a correspondent for "The Sunday Telegraph". He called his invention a "recording telegraph". America, Associated Press, NBC, MSNBC, and "The Daily Telegraph". She also worked as a journalist for the Australian "Daily Telegraph".