First transcontinental telephone call

A telephone call, which for marketing purposes is claimed to be the first transcontinental telephone call, occurred on January 25, 1915, a day timed to coincide with the Panama–Pacific International Exposition celebrations. However, the transcontinental telephone line was first completed on June 17, 1914, and successfully first voice tested in July 1914. A 1998 U.S. postage stamp commemorates the completion of the line in 1914.^[1]^[2]^[3]^[4]

^ Riordan, Michael; Hoddeson, Lillian (December 1998). Crystal Fire: The Birth of the Information Age. Sloan Technology Series (1st ed.). New York: W. W. Norton & Company. pp. 57–61. ISBN 978-0-393-31851-7. LCCN 96047464. OCLC 35762766.
^ "1915: First Transcontinental Telephone Call" (web page). AT&T Labs. 2013-06-29. Retrieved 2013-08-21.
^ "A Transcontinental Telephone Line: July 1914" (web page). PBS online, ScienCentral Inc. and The American Institute of Physics. 1999. Retrieved 2013-08-21.
^ McMaster, Susan E. (2002-08-30). The Telecommunications Industry. Emerging Industries in the United States (1st ed.). Westport, Conn.: Greenwood Press. pp. 46–47. ISBN 978-0-313-31601-2. LCCN 2002021628. OCLC 231966417.

[riordan-1] Riordan, Michael; Hoddeson, Lillian (December 1998). Crystal Fire: The Birth of the Information Age. Sloan Technology Series (1st ed.). New York: W. W. Norton & Company. pp. 57–61. ISBN 978-0-393-31851-7. LCCN 96047464. OCLC 35762766.

[transtel-2] "1915: First Transcontinental Telephone Call" (web page). AT&T Labs. 2013-06-29. Retrieved 2013-08-21.

[PBS-3] "A Transcontinental Telephone Line: July 1914" (web page). PBS online, ScienCentral Inc. and The American Institute of Physics. 1999. Retrieved 2013-08-21.

[mcmaster-4] McMaster, Susan E. (2002-08-30). The Telecommunications Industry. Emerging Industries in the United States (1st ed.). Westport, Conn.: Greenwood Press. pp. 46–47. ISBN 978-0-313-31601-2. LCCN 2002021628. OCLC 231966417.

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