First Intelligible Voice Transmission Over Electric Wire, 1876
Here Alexander Graham Bell transmitted to Thomas Augustus Watson the first complete and intelligible sentence by telephone March 10, 1876
The Bostonian Society and the New England Telephone and Telegraph Company placed this tablet March 10, 1916.
IEEE Milestone in Electrical Engineering and Computing
First intelligible voice transmission over electric wire, 1876
The first transmission of intelligible speech over electrical wires took place on March 10, 1876. Inventor Alexander Graham Bell called out to his assistant Thomas Augustus Watson, "Mr. Watson, come here! I want to see you." This transmission took place in their attic laboratory located in a building near here at 5 Exeter Place.
March 2006
Institute of Electrical and Electronics Engineers