Alexander Graham Bell will forever be involved in the history of history as the inventor of the phone. Despite the invention of the device we love to use, Bell's attempt to give us a reasonable way to start a session with the phone is flat.
After the phone had been invented and presented to the public, Bell suggested using the right device. One way to greet someone on the phone was to say, "Ahoi-Hoy," in the nautical tradition. Despite Bell's best efforts to win "Ahoy-Hoy", it was ultimately his competitor Thomas Edison's suggestion that had come out ̵
Early directories contained etiquette guides at the front that augmented "hello" as the right and accepted greeting, and from then on the word stuck. Despite the overwhelming popularity of "hello", Alexander Graham Bell remained faithful to his suggestion and responded with "ahoy-hoy" for the rest of his life.
In fact, you've probably never heard anyone answer the phone call "Ahoy-Hoy" unless you're a great Simpsons fan. As a subtle joke and nod, how old Mr Burns should be, he answers with "Ahoi-Hoy", indicating that he was there when the debate over "Ahoy-Hoy" versus "hello" in public was awareness.