Also in July, Bell and his financial backers - Thomas Sanders and Gardiner G Hubbard - formed the Bell Telephone Company in the United States.
The early demand for the telephone had not been great and prior to forming their company Bell and his partners had struggled in their attempts to promote the new invention.
The Hunnings transmitter was later developed by others to replace Blake's as the standard instrument of the Bell Companies.
However, because Bell had filed his patents before Gray, albeit only by hours, settlement was eventually made on 10 November 1879 in favour of Bell, and gave the Bell Company all Edison's telephone rights.Sir William Thompson (later Lord Kelvin) exhibited Bell's telephone to the British Association for the Advancement of Science at Glasgow in September.He described it as "the greatest by far of all the marvels of the electric telegraph".Within hours, Elisha Gray of Chicago (1835-1901), a superintendent of the Western Union Telegraph Company, filed a similar application.Bell was granted his patent on 7 March, before Gray.
The first trial of long-distance telephony in Great Britain as a commercial proposition was held on 1 November with a call between Cannon Street in London, and Norwich - a distance of 115 miles - using an Edison transmitter on a telegraph wire.