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How does Internet telephony work?

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Internet telephony for all common purposes works the same as a traditional phone line, where making a phone call is concerned. However the set up and connection process is just a little different.

Just like that as the traditional telephone, Internet telephony allows real-time two-way communication to occur over the Internet.

The idea behind Internet telephony is that by logging onto a computer and putting in a IP address you can call anywhere. The same idea occurs using the IP hybrid. This form of Internet telephony or VoIP makes it possible to call any where in the world by simply taking the voice or video input and transferring that into data packets and then sending those packets to another computer.

Internet telephony works by taking the voice sounds digitizing it and transmitting it over the internet. This is different from the traditional phone service that used a series of switches over a telephone network to send the audio signal.

The Internet telephony process can send approximately 3000 bps or bits per second with an average 28.8 bps model modem. However the faster the connection, the better voice quality will be. It is recommended to use a DSL or Cable connection for the highest quality possible.

The sound or video is compressed so that more can be sent in less space on the Internet, then when this information gets to the receiving end, the information is decompressed. This process uses a TCP/IP protocol.

There are three ways of Internet telephony.

Phone to phone- this is the process that involves a telephone to another telephone routed over the Internet.
PC to phone- these are calls that go from a computer to a phone.
PC to PC- these calls are from computer to computer.

Here is how each of these types of Internet telephony work.

Phone to phone

  • - Place a call from a regular phone
  • - The sound is compressed into data
  • - The compressed packets are sent over the Internet
  • - Packets arrive to the other computer
  • - The call is then decompressed back to sound.

PC to Phone

  • - The PC gets the voice and compresses the information
  • - The compressed packets are sent over the Internet
  • - The other computer receives the packets
  • - The packets are received and decompressed to voice

PC to PC

  • - Both users use specific software to communicate to each other
  • - Download needed software
  • - Connect to the software
  • - Use the data voice to communicate through the software

Each of these systems has their benefits. However, with Internet telephony growing so rapidly there will be many more benefits as time goes on.

An Internet telephony service provider is just that. They are a company that provides the Internet telephony service.

The same as you have to register to use the Internet; you need to register through a participating Internet telephony service provider.

These companies make the process of Internet gateways a practical and convenient way to use this new technology at a good price.

They offer the options of the traditional phone services, like call waiting, call forwarding, voice mail, caller ID etc, but at a fraction of the cost of traditional telephone services.

With this new technology growing, it is a great time to get in and ride the Internet communication train. This is a great way to communicate worldwide at great prices. Communication has never seen a better time. Friends and family have the ability to communicate at a fraction of the normal international and long distance rates. Not only the savings as a benefit, but the simplicity is better than ever.

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