When was the first official San Francisco to New York telephone call?
The first official trans-continental US call was made on January 25, 1915 between San Francisco and New York. A. G. Bell, in New York, repeated the request to T. A. Watson, in San Francisco; "Mr. Watson, come here, I want you."
Commercial service started on approximately January 25, 1915 with a 3 minute San
Francisco to New York call costing $20.70.