According to House Resolution 269 (June 11, 2002), he was the inventor of the telephone. As for Alexander Graham Bell, he was a fraud. And worse, a Scotsman.
According to a poster (postee?) "[t]he question of whether Bell was the true inventor of the telephone is perhaps the single most litigated fact in U.S. history, and the Bell patents were defended in some 600 cases. Bell never lost a case. HR 269 directly contradicts findings of courts in New York, Massachusetts, Louisiana, Ohio, Maryland, and numerous others states. (See among others American Bell Telephone Co. v. Dolbear, 15 Fed. Rep. 448; American Bell Telephone Co. v. Spencer, 8 Fed. Rep. 509, and American Bell Telephone Co. v. Molecular Telephone, 32 Fed. Rep. 214.)." HR 269 also apparently directly contradicts the findings of the Congressional Committee of 1886, set up in response to the Pan-Electric Telephone scandal.
Hmmm. Almost makes you remember the good old days when the Indiana House decided pi was equal to 3.2.