I would contend that electric power certainly does as does the light bulb (both invented by the same man that invented the telephone, Nikola Tesla).
The internal combustion engine is also a vital part of the modern world. We need these far worse then we need the telephone.
On the medical front, vaccines offer life to otherwise dead humans. Penicillin is also a godsend invention that to those of us alive because of it believe exceeds the telephone.
ADDITION:
an invention better than the telephone is a matter of opinion; in other words, you are asking what people THINK. There is no factual answer.
I think fire and the wheel are the principle inventions of the ages. The telephone, the internal combustion engine, vaccines, penicillin, and even Insulin and battery power would not have been possible without fire and the wheel.
his hardest invention was the telephone
No. The telephone is not an innovation it is an invention.
Because if they didnt come up with a telephone invention we wouldn't have cell phones.
The telephone was a wonderful invention
the invention of grahambel is the telephone set we are very much thankful to him for his invention .
Alexander Graham Bell invented the telephone. He created a company, the Bell Telephone Company to rent and sell his invention.
Alexander Graham Bell is credited with the invention of the telephone.
the telephone was worth about $250.00 in about 1870s
The Invention of Grahambel is the Telephone Set we are very much thankful to him for his invention .
the telephone
1876
Telephone & Electricity