Question

What do you understand by internal telephony?​

Answer 1

Answer:

The word telephony comes from the Greek root words for far, tele, and speak, phone. In 1876, Alexander Graham Bell famously patented the telephone as a way to electronically transmit human speech, building on the success of the telegraph system. A few days later, he spoke the first words ever communicated via telephone to his assistant, Thomas Watson, who was in the next room: "Mr. Watson, come here. I want to see you." The following year, he made the first distanced phone call in history -- from Salem, Mass., to Boston -- and founded the Bell Telephone Company, which would later become part of AT&T.