The company was registered on 14 June with a capital of 100,000. It had a capacity for 150 lines and opened with 7 or 8 subscribers.One of the first telephone lines to be erected in the vicinity of London was from Hay's Wharf, south of the Thames, to Hay's Wharf Office on the north bank.
Sir William Thompson (later Lord Kelvin) exhibited Bell's telephone to the British Association for the Advancement of Science at Glasgow in September.
The new company employed Thomas A Edison, Elisha Gray and Amos F Dolbear, three leading electrical inventors.
1878 Bell demonstrated the telephone to Queen Victoria on 14 January at Osborne House on the Isle of Wight with calls to London, Cowes and Southampton.
Bell was a Scot by birth, and had been born at 16 South Charlotte Street, Edinburgh, UK on 3 March 1847.
The Bell family emigrated to Brantford, Ontario, Canada, in 1870 following the deaths of Graham's two brothers from tuberculosis.