An introduction to voip
| Added: 10-12-2010 Author: Thomas Schueneman Category: Voice Over IP |
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You might think that VoIP works only from computer to computer, and that was the original intention. Of course, you can use this way, but has been developed further in the VoIP telephone network in itself. Using VoIP, you can call any phone anywhere in the world, and can receive calls to a phone connected to the Internet or LAN (local network)
Background
VoIP born again in the Internet stone age, namely in 1995, when Israeli computer enthusiasts made the first voice connection between two computers. This year the technology was made in the software package called Internet Phone Software. All you need to speak with another computer modem, sound card, speakers and microphone, and, of course, computers. VoIP born.
The compressed and digitized audio program signal and then sends the data over the Internet in a hidden package. This voice connection can only occur between computers that have installed software. Like many new technologies, it wasn t very pretty at first. The sound quality is very poor and very weak and audio quality of standard telephone networks, which, by the way, ISN t really good either, in terms of hi-fi.
But of course, is only the beginning. Technologies to be developed and in 1998 he learned the gateway has been established to allow PC-to-phone connections. Later that year, phone-to-phone connection is possible to use the Internet to send audio. Phone-to-phone connections still required a computer to build a call, but the call was established, callers could use a regular phone lines.
VoIP Today
VoIP is a big business quickly, with Telcom's get on board that offer VoIP services. This service is available to all commercial and residential use, from PC-to-PC service, all the way through the phone-to-phone.
Internet phone (or IP phone) are available that plug into the USB port or directly to a PC sound card. This phone looks much the same as the old thing sitting on your desk, with the number of finger pads adjusted. It's even possible to completely pass put the computer into a phone or cable broadband modem. We find very ironic that the traditional telephone network bypass you can plug IP phones into a broadband modem is connected, of course, your phone.
How does VoIP Work?
The first thing that needs to happen is that you change your voice needs to be bits and bytes, which is known as digital. Your voice sample, a process that divides into the Discrete Analogue voice bits of data called a numeric value. Once digital, the data can be easily suppressed.
Is digital data is compressed and then divided up to about 1500 bytes of the packet to facilitate delivery through the network. Although the raw sound data, this package contains information about the package origin, destination to destination, and that allows package on reconstructed in the correct order. Once the package reaches their destination, they are put back together (in the correct order) and converted back into analog sound that registered in the other end to understand what he said back.
Now, this is a big thing that needs to happen in, basically, the speed of light. It is important to avoid delays from happening, broadband needed to use VoIP. As more businesses and residential customers using broadband now, the conversion to VoIP should be relatively easy for most computer users.
And there you have it! Rapid introduction of new technologies one of the latest hot! You can save a bundle on long distance costs by using broadband IP phone to make and receive calls over the Internet for VoIP.
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