Voice over Internet protocol or VoIP is the newest innovation to the years old audio communication technology. The IP telephony transmits voice, video and data over the broadband networks. The process of calling over the VoIP is quite akin to a normal phone; however, it uses high-speed Internet service, which makes it all the more invaluable. It reduces per-minute call as the technology is based on the packet switching technique of the Internet.
IP telephony caters to the need of international market by offering lower rates for long distance and international calling. Features like cost efficiency, reliability, functionality, security and scalability in IP telephony has made it right choice for the ‘next’ Generation people.
For availing the benefits of VoIP calling, users must be equipped with an Internet service, ATA or Analog terminal Adapter, a handset as well as an IP service. A VoIP call is based on the packet switching technology that converts the audio or analog signals into small packets of digital data. These data is converted using Analog-to-Digital Converter or ADC. The digital packets are compressed into the set standard format and then routed over the Internet connection. These compressed digital standard packets absorb the noise on the way; consequently, the packets get transferred faster and more efficiently. While routing over the Internet, packets are in compliance with standard communication protocols. The packets are routed over the various paths; when they arrive at the destination, there is a re-conversion of the digital packets to analog signals. These data is converted using Digital-to- Analog Converter or DAC.
These conversion and re-conversion process takes place in the real time and the end users enjoy continuous speech flow without any delays. The services of VoIP are based on the packet switching technique, so calling over longer distance is made easier and cheaper. While opting for a VoIP phone or service, users must check features like caller ID with name and telephone number; call blocking, call waiting, 3-way calling, call forwarding, and voice mail.
Author: Kristen Kiya
Article Source: EzineArticles.com
Provided by: Duty on LCD/Plasma TV
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