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Mr. Bell being awarded the first US patent for the telephone in

1811
1876
1892
1924

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Credit for the invention of the electric telephone is disputed but Alexander Graham Bell was the first to be awarded a patent for the electric telephone by the United States Patent and Trademark Office in March                 .

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Who invented telephone switchboard which allowed for the formation of telephone exchanges, and eventually networks ?

Alexander Graham Bell
Innocenzo Manzetti
Tivadar Puskas
Antonio Meucci

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He was a Hungarian inventor and telephone pioneer

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Telephone switchboard was invented in which year ?

1901
1891
1885
1876

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A Hungarian engineer, Tivadar Puskás, quickly invented the telephone switchboard in 1876, which allowed for the formation of telephone exchanges, and eventually networks

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The traditional landline telephone system is known as

SOTS
POTS
MOTS
HOTS

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Plain Old Telephone Service(POTS) commonly carries both control and audio signals on the same twisted pair of insulated wires.

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What Mr. Bell spoke in the first successful telephone transmission of clear speech using a liquid transmitter ?

Is this clear to you Mr. David
Do you hear me Mr. David
Mr. Watson, come here, I want to see you.
Hoy Hoy Mr. John

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Which country has most number of telephone lines in use

China
USA
India
Japan

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Which company introduced introduced touch-tone dialing in the 1960s ?

GE
AT&T
AMG
Scheasto

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American Telephone & Telegraph Company (AT&T) introduced touch-tone dialing in the 1960s.

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Who constructs the first speech-transmitting telephone ?

Philipp Reis
Charles Bourseul
Antonio Meucci
Robert Hooke

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He constructed it in 1861.

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In which year , First U.S. coast-to-coast long-distance telephone call inaugurated by A.G. Bell in New York City ?

1901
1915
1925
1931

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The American Telephone & Telegraph Company (AT&T) was formed in

1934
1922
1885
1880

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