History of VoIP - An Introduction to VoIP
History of VoIP
How could people communicate with others in different place prior to early 1800s? Write on a paper and mail it across? Yes. It was something like that. And then there was ‘telegraph’. It was very popular and useful with its Morse code. Morse code dealt with sending and receiving messages in dots and dashes. And then people de-code to understand the message. In early stages it was just either send or receives the message. Meaning, both sending and receiving were not possible at the same time. Later transmitting multiple messages became possible.
Alexander Graham Bell was working on ‘Harmonic telegraph’ to send several notes simultaneously. He believed that if notes or signals differed in pitch, several notes could be sent simultaneously along the same wire.
Elisha Gray and Alexander Graham Bell designed ‘some device’ without knowing each other that; both were working on something similar. In 1870, both could display device that could transmit speech electrically. Alexander Graham Bell patented his device first and it was called Telephone. Telephone seems to be a result of Alexander’s attempt to improve telegraph.
On 10 March 1876, Bell could talk to Thomas Watson, who was in the next room using the instrument. They made history, just then. We all realize how important a telephone is today to all of us. We find various technologies of telephone. While wireless and mobile/cellular phones underwent many changes in technology, newer ways of communication are being experimented.
Birth of VoIP
Internet had revolutionized the way people communicate. The websites, chat rooms, message boards, email systems, auto-responders, Instant messaging systems and even sending Short Messaging Service ( SMS) through Internet.
It was necessary to have unique identification of computers on the internet to enable proper communication. U.S. Department of Defense has developed the Transmission Control protocol/ Internet Protocol (TCP/IP) to have unique TCP/IP address for each and every computer.
Irrespective of country and Service provider, every computer shall have unique IP address to get connected to Internet. IP uses packet-switching method where the data is sliced and bundled into packets. Packets are nothing but pieces of information. These packets are transmitted from the source to the destination by relaying from router to router till they reach the destination.
Elon Ganor graduated with an M.D. from Israel's Tel Aviv University Medical School in 1975. He served in the Israeli Defense Force as a field doctor and medical officer in the Golan Heights. He believed that voice can be successfully transmitted through Internet and started exploring the same at Vocaltec.
Vocaltec introduced Internet Phone in 1995. They could compress the voice signals and translate it into IP packets for transmission over the Internet using a Personal Computer. The signals were processed on the receiving end and. While the technology breakthrough was significant, it suffered due to the congestion and quality of networks. Hence it could not become an instant success.
However, better network, greater bandwidth and new products leverage VoIP to have cheaper and better communication using Internet as medium of communication.
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How could people communicate with others in different place prior to early 1800s? Write on a paper and mail it across? Yes. It was something like that. And then there was ‘telegraph’. It was very popular and useful with its Morse code. Morse code dealt with sending and receiving messages in dots and dashes. And then people de-code to understand the message. In early stages it was just either send or receives the message. Meaning, both sending and receiving were not possible at the same time. Later transmitting multiple messages became possible.
Alexander Graham Bell was working on ‘Harmonic telegraph’ to send several notes simultaneously. He believed that if notes or signals differed in pitch, several notes could be sent simultaneously along the same wire.
Elisha Gray and Alexander Graham Bell designed ‘some device’ without knowing each other that; both were working on something similar. In 1870, both could display device that could transmit speech electrically. Alexander Graham Bell patented his device first and it was called Telephone. Telephone seems to be a result of Alexander’s attempt to improve telegraph.
On 10 March 1876, Bell could talk to Thomas Watson, who was in the next room using the instrument. They made history, just then. We all realize how important a telephone is today to all of us. We find various technologies of telephone. While wireless and mobile/cellular phones underwent many changes in technology, newer ways of communication are being experimented.
Birth of VoIP
Internet had revolutionized the way people communicate. The websites, chat rooms, message boards, email systems, auto-responders, Instant messaging systems and even sending Short Messaging Service ( SMS) through Internet.
It was necessary to have unique identification of computers on the internet to enable proper communication. U.S. Department of Defense has developed the Transmission Control protocol/ Internet Protocol (TCP/IP) to have unique TCP/IP address for each and every computer.
Irrespective of country and Service provider, every computer shall have unique IP address to get connected to Internet. IP uses packet-switching method where the data is sliced and bundled into packets. Packets are nothing but pieces of information. These packets are transmitted from the source to the destination by relaying from router to router till they reach the destination.
Elon Ganor graduated with an M.D. from Israel's Tel Aviv University Medical School in 1975. He served in the Israeli Defense Force as a field doctor and medical officer in the Golan Heights. He believed that voice can be successfully transmitted through Internet and started exploring the same at Vocaltec.
Vocaltec introduced Internet Phone in 1995. They could compress the voice signals and translate it into IP packets for transmission over the Internet using a Personal Computer. The signals were processed on the receiving end and. While the technology breakthrough was significant, it suffered due to the congestion and quality of networks. Hence it could not become an instant success.
However, better network, greater bandwidth and new products leverage VoIP to have cheaper and better communication using Internet as medium of communication.
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Lookout for future articles at this blog
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posted by rameshkumarb @ 10:17 PM
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