The first presidential phone call took place in Rhode Island, when Alexander Graham Bell called 19th President Rutherford B. Hayes as he attended a clambake at Rocky Point Park. 

To Visit: Rocky Point Ave. | Nothing to see but a sign, but you can stand where the first Presidential phone call took place, if that’s a thing you want to do. 

Episode Source Material: 

Rutherford B. Hayes has first phone installed in White HouseA clambake, slurs and phone sex: The long, strange history of presidential callsAmerican RadioWorks - The President CallingAlexander Graham Bell and Rhode IslandMarch 10, 1876: 'Mr. Watson, Come Here ... 'First speech transmitted by telephone - HISTORYTBT: When the First Telephone Call Was MadeEncyclopedia Brunoniana | Blake, Eli WhitneyImage 2 of Speech by Alexander Graham Bell, November 2, 1911History of the telephoneElisha Gray and Alexander Bell telephone controversyElisha Gray and the Telephone Controversy with Alexander Graham BellThe Bell Versus Gray Telephone Dispute: Resolving a 144-Year-Old Controversy [Scanning Our Past]Obama’s whopper about Rutherford B. Hayes and the telephoneBefore 1929, Nobody Thought the President Needed a Telephone in his OfficeHotline established between Washington and Moscow - HISTORYFrom the Telegram to Twitter, How Presidents Make Contact With Foreign LeadersElectrical telegraphHistory of the telephoneWho answers the White House phone, anyway?Great Invention, But Who Would Ever Want to Use One? – Quote Investigator