What were the first words successfully transmitted by Alexander Graham Bell over the telephone on March 10, 1876?

Answer

Mr. Watson, come here, I want to see you.

Bell transmitted the specific phrase, "Mr. Watson, come here, I want to see you," on March 10, 1876, marking the definitive shift in communication capability.

What were the first words successfully transmitted by Alexander Graham Bell over the telephone on March 10, 1876?
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